The HDMI blocks in the BCM2771 have an i2c controller to retrieve the EDID. This block is split into two parts, the BSC and the AUTO_I2C, lying in two separate register areas.

The AUTO_I2C block has a mailbox-like interface and will take away the BSC control from the CPU if enabled. However, the BSC is the actually the same controller than the one supported by the brcmstb driver, and the AUTO_I2C doesn't really bring any immediate benefit.

We can model it in the DT as a single device with two register range, which will allow us to use or or the other in the driver without changing anything in the DT.

Cc: Kamal Dasu kdasu.kdev@gmail.com Cc: Florian Fainelli f.fainelli@gmail.com Cc: Rob Herring robh+dt@kernel.org Cc: Wolfram Sang wsa@the-dreams.de Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-i2c@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml | 40 ++++++- 1 file changed, 39 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml b/Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml index 3189d74096e8..edbca2476128 100644 --- a/Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml @@ -15,11 +15,21 @@ allOf: properties: compatible: enum: + - brcm,bcm2711-hdmi-i2c - brcm,brcmstb-i2c - brcm,brcmper-i2c

reg: - maxItems: 1 + minItems: 1 + maxItems: 2 + items: + - description: BSC register range + - description: Auto-I2C register range + + reg-names: + items: + - const: bsc + - const: auto-i2c

interrupts: maxItems: 1 @@ -45,6 +55,26 @@ required:

unevaluatedProperties: false

+if: + properties: + compatible: + contains: + enum: + - brcm,bcm2711-hdmi-i2c + +then: + properties: + reg: + minItems: 2 + + required: + - reg-names + +else: + properties: + reg: + maxItems: 1 + examples: - | bsca: i2c@f0406200 { @@ -56,4 +86,12 @@ examples: interrupt-names = "upg_bsca"; };

+ - | + ddc0: i2c@7ef04500 { + compatible = "brcm,bcm2711-hdmi-i2c"; + reg = <0x7ef04500 0x100>, <0x7ef00b00 0x300>; + reg-names = "bsc", "auto-i2c"; + clock-frequency = <390000>; + }; + ...

The HDMI blocks in the BCM2771 have an i2c controller to retrieve the EDID. This block is split into two parts, the BSC and the AUTO_I2C, lying in two separate register areas.

The AUTO_I2C block has a mailbox-like interface and will take away the BSC control from the CPU if enabled. However, the BSC is the actually the same controller than the one supported by the brcmstb driver, and the AUTO_I2C doesn't really bring any immediate benefit.

Let's use the BSC then, but let's also tie the AUTO_I2C registers with a separate compatible so that we can enable AUTO_I2C if needed in the future.

The AUTO_I2C is enabled by default at boot though, so we first need to release the BSC from the AUTO_I2C control.

Cc: Kamal Dasu kdasu.kdev@gmail.com Cc: Florian Fainelli f.fainelli@gmail.com Cc: Wolfram Sang wsa@the-dreams.de Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-i2c@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/i2c/busses/i2c-brcmstb.c | 33 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+)

diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c index 506991596b68..169a2836922d 100644 --- a/drivers/i2c/busses/i2c-brcmstb.c +++ b/drivers/i2c/busses/i2c-brcmstb.c @@ -580,6 +580,31 @@ static void brcmstb_i2c_set_bsc_reg_defaults(struct brcmstb_i2c_dev *dev) brcmstb_i2c_set_bus_speed(dev); }

+#define AUTOI2C_CTRL0 0x26c +#define AUTOI2C_CTRL0_RELEASE_BSC BIT(1) + +static int bcm2711_release_bsc(struct brcmstb_i2c_dev *dev) +{ + struct platform_device *pdev = to_platform_device(dev->device); + struct resource *iomem; + void __iomem *autoi2c; + + /* Map hardware registers */ + iomem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "auto-i2c"); + autoi2c = devm_ioremap_resource(&pdev->dev, iomem); + if (IS_ERR(autoi2c)) + return PTR_ERR(autoi2c); + + writel(AUTOI2C_CTRL0_RELEASE_BSC, autoi2c + AUTOI2C_CTRL0); + devm_iounmap(&pdev->dev, autoi2c); + + /* We need to reset the controller after the release */ + dev->bsc_regmap->iic_enable = 0; + bsc_writel(dev, dev->bsc_regmap->iic_enable, iic_enable); + + return 0; +} + static int brcmstb_i2c_probe(struct platform_device *pdev) { int rc = 0; @@ -609,6 +634,13 @@ static int brcmstb_i2c_probe(struct platform_device *pdev) goto probe_errorout; }

+ if (of_device_is_compatible(dev->device->of_node, + "brcm,bcm2711-hdmi-i2c")) { + rc = bcm2711_release_bsc(dev); + if (rc) + goto probe_errorout; + } + rc = of_property_read_string(dev->device->of_node, "interrupt-names", &int_name); if (rc < 0) @@ -705,6 +737,7 @@ static SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend, static const struct of_device_id brcmstb_i2c_of_match[] = { {.compatible = "brcm,brcmstb-i2c"}, {.compatible = "brcm,brcmper-i2c"}, + {.compatible = "brcm,bcm2711-hdmi-i2c"}, {}, }; MODULE_DEVICE_TABLE(of, brcmstb_i2c_of_match);

The clock framework DT provider helpers don't check the pointers in the array registered by the clock provider before returning it.

This means that if the array is sparse, we will end up returning a NULL pointer while the caller expects an error pointer, resulting in a crash.

Let's test the pointer returned and properly return an error if the pointer is NULL.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/clk.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f0f2b599fd7e..8532b5ed1060 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -4318,13 +4318,18 @@ struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data) { struct clk_onecell_data *clk_data = data; unsigned int idx = clkspec->args[0]; + struct clk *clk;

if (idx >= clk_data->clk_num) { pr_err("%s: invalid clock index %u\n", __func__, idx); return ERR_PTR(-EINVAL); }

- return clk_data->clks[idx]; + clk = clk_data->clks[idx]; + if (!clk) + return ERR_PTR(-ENODEV); + + return clk; } EXPORT_SYMBOL_GPL(of_clk_src_onecell_get);

@@ -4333,13 +4338,18 @@ of_clk_hw_onecell_get(struct of_phandle_args *clkspec, void *data) { struct clk_hw_onecell_data *hw_data = data; unsigned int idx = clkspec->args[0]; + struct clk_hw *hw;

if (idx >= hw_data->num) { pr_err("%s: invalid index %u\n", __func__, idx); return ERR_PTR(-EINVAL); }

- return hw_data->hws[idx]; + hw = hw_data->hws[idx]; + if (!hw) + return ERR_PTR(-ENODEV); + + return hw; } EXPORT_SYMBOL_GPL(of_clk_hw_onecell_get);

The firmare running on the RPi VideoCore can be used to discover and change the various clocks running in the BCM2711. Since devices will need to use them through the DT, let's add a pretty simple binding.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: Rob Herring robh+dt@kernel.org Cc: linux-clk@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml

diff --git a/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml new file mode 100644 index 000000000000..d37bc311321d --- /dev/null +++ b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/raspberrypi,firmware-clocks.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RaspberryPi Firmware Clocks Device Tree Bindings + +maintainers: + - Maxime Ripard mripard@kernel.org + +properties: + "#clock-cells": + const: 1 + + compatible: + const: raspberrypi,firmware-clocks + + raspberrypi,firmware: + $ref: /schemas/types.yaml#/definitions/phandle + description: > + Phandle to the mailbox node to communicate with the firmware. + +required: + - "#clock-cells" + - compatible + - raspberrypi,firmware + +additionalProperties: false + +examples: + - | + firmware_clocks: firmware-clocks { + compatible = "raspberrypi,firmware-clocks"; + raspberrypi,firmware = <&firmware>; + #clock-cells = <1>; + }; + +...

The pllb_arm clk_hw pointer in the raspberry_clk structure isn't used anywhere but in the raspberrypi_register_pllb_arm.

Let's remove it, this will make our lives easier in future patches.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 48cffa44db64..61a942f9a6a2 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -40,7 +40,6 @@ struct raspberrypi_clk { unsigned long max_rate;

struct clk_hw pllb; - struct clk_hw *pllb_arm; struct clk_lookup *pllb_arm_lookup; };

@@ -246,12 +245,12 @@ static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) dev_err(rpi->dev, "Failed to initialize pllb_arm\n"); return ret; } - rpi->pllb_arm = &raspberrypi_clk_pllb_arm.hw;

- rpi->pllb_arm_lookup = clkdev_hw_create(rpi->pllb_arm, NULL, "cpu0"); + rpi->pllb_arm_lookup = clkdev_hw_create(&raspberrypi_clk_pllb_arm.hw, + NULL, "cpu0"); if (!rpi->pllb_arm_lookup) { dev_err(rpi->dev, "Failed to initialize pllb_arm_lookup\n"); - clk_hw_unregister_fixed_factor(rpi->pllb_arm); + clk_hw_unregister_fixed_factor(&raspberrypi_clk_pllb_arm.hw); return -ENOMEM; }

The pllb_arm clock was created at probe time, but was never removed if something went wrong later in probe, or if the driver was ever removed from the system.

Now that we are using clk_hw_register, we can just use its managed variant to take care of that for us.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 61a942f9a6a2..783c8c5e5373 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -240,7 +240,7 @@ static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) { int ret;

- ret = clk_hw_register(rpi->dev, &raspberrypi_clk_pllb_arm.hw); + ret = devm_clk_hw_register(rpi->dev, &raspberrypi_clk_pllb_arm.hw); if (ret) { dev_err(rpi->dev, "Failed to initialize pllb_arm\n"); return ret; @@ -250,7 +250,6 @@ static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) NULL, "cpu0"); if (!rpi->pllb_arm_lookup) { dev_err(rpi->dev, "Failed to initialize pllb_arm_lookup\n"); - clk_hw_unregister_fixed_factor(&raspberrypi_clk_pllb_arm.hw); return -ENOMEM; }

The clkdev lookup created for the cpufreq device is never removed if there's an issue later in probe or at module removal time.

Let's convert to the managed variant of the clk_hw_register_clkdev function to make sure it happens.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index b97c7ec61376..b8b55134ba3f 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -245,8 +245,9 @@ static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) return ret; }

- ret = clk_hw_register_clkdev(&raspberrypi_clk_pllb_arm.hw, - NULL, "cpu0"); + ret = devm_clk_hw_register_clkdev(rpi->dev, + &raspberrypi_clk_pllb_arm.hw, + NULL, "cpu0"); if (ret) { dev_err(rpi->dev, "Failed to initialize clkdev\n"); return ret;

The driver has really only supported one clock so far and has hardcoded the ID used in communications with the firmware in all the functions implementing the clock framework hooks. Let's store that in the clock data structure so that we can support more clocks later on.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 964fc8f792cc..e796dabbc641 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -39,6 +39,7 @@ struct raspberrypi_clk {

struct raspberrypi_clk_data { struct clk_hw hw; + unsigned id;

unsigned long min_rate; unsigned long max_rate; @@ -95,7 +96,7 @@ static int raspberrypi_fw_pll_is_on(struct clk_hw *hw)

ret = raspberrypi_clock_property(rpi->firmware, RPI_FIRMWARE_GET_CLOCK_STATE, - RPI_FIRMWARE_ARM_CLK_ID, &val); + data->id, &val); if (ret) return 0;

@@ -114,8 +115,7 @@ static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw,

ret = raspberrypi_clock_property(rpi->firmware, RPI_FIRMWARE_GET_CLOCK_RATE, - RPI_FIRMWARE_ARM_CLK_ID, - &val); + data->id, &val); if (ret) return ret;

@@ -133,8 +133,7 @@ static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate,

ret = raspberrypi_clock_property(rpi->firmware, RPI_FIRMWARE_SET_CLOCK_RATE, - RPI_FIRMWARE_ARM_CLK_ID, - &new_rate); + data->id, &new_rate); if (ret) dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d", clk_hw_get_name(hw), ret); @@ -189,6 +188,7 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) if (!data) return -ENOMEM; data->rpi = rpi; + data->id = RPI_FIRMWARE_ARM_CLK_ID;

/* All of the PLLs derive from the external oscillator. */ init.parent_names = (const char *[]){ "osc" }; @@ -200,8 +200,7 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) /* Get min & max rates set by the firmware */ ret = raspberrypi_clock_property(rpi->firmware, RPI_FIRMWARE_GET_MIN_CLOCK_RATE, - RPI_FIRMWARE_ARM_CLK_ID, - &min_rate); + data->id, &min_rate); if (ret) { dev_err(rpi->dev, "Failed to get %s min freq: %d\n", init.name, ret); @@ -210,8 +209,7 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi)

ret = raspberrypi_clock_property(rpi->firmware, RPI_FIRMWARE_GET_MAX_CLOCK_RATE, - RPI_FIRMWARE_ARM_CLK_ID, - &max_rate); + data->id, &max_rate); if (ret) { dev_err(rpi->dev, "Failed to get %s max freq: %d\n", init.name, ret);

The raspberry_clock_property only takes the clock ID as an argument, but now that we have a clock data structure it makes more sense to just pass that structure instead.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index e796dabbc641..3b2da62a72f5 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -67,11 +67,12 @@ struct raspberrypi_firmware_prop { __le32 disable_turbo; } __packed;

-static int raspberrypi_clock_property(struct rpi_firmware *firmware, u32 tag, - u32 clk, u32 *val) +static int raspberrypi_clock_property(struct rpi_firmware *firmware, + struct raspberrypi_clk_data *data, + u32 tag, u32 *val) { struct raspberrypi_firmware_prop msg = { - .id = cpu_to_le32(clk), + .id = cpu_to_le32(data->id), .val = cpu_to_le32(*val), .disable_turbo = cpu_to_le32(1), }; @@ -94,9 +95,8 @@ static int raspberrypi_fw_pll_is_on(struct clk_hw *hw) u32 val = 0; int ret;

- ret = raspberrypi_clock_property(rpi->firmware, - RPI_FIRMWARE_GET_CLOCK_STATE, - data->id, &val); + ret = raspberrypi_clock_property(rpi->firmware, data, + RPI_FIRMWARE_GET_CLOCK_STATE, &val); if (ret) return 0;

@@ -113,9 +113,8 @@ static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw, u32 val = 0; int ret;

- ret = raspberrypi_clock_property(rpi->firmware, - RPI_FIRMWARE_GET_CLOCK_RATE, - data->id, &val); + ret = raspberrypi_clock_property(rpi->firmware, data, + RPI_FIRMWARE_GET_CLOCK_RATE, &val); if (ret) return ret;

@@ -131,9 +130,9 @@ static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate, u32 new_rate = rate / RPI_FIRMWARE_PLLB_ARM_DIV_RATE; int ret;

- ret = raspberrypi_clock_property(rpi->firmware, + ret = raspberrypi_clock_property(rpi->firmware, data, RPI_FIRMWARE_SET_CLOCK_RATE, - data->id, &new_rate); + &new_rate); if (ret) dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d", clk_hw_get_name(hw), ret); @@ -198,18 +197,18 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) init.flags = CLK_GET_RATE_NOCACHE | CLK_IGNORE_UNUSED;

/* Get min & max rates set by the firmware */ - ret = raspberrypi_clock_property(rpi->firmware, + ret = raspberrypi_clock_property(rpi->firmware, data, RPI_FIRMWARE_GET_MIN_CLOCK_RATE, - data->id, &min_rate); + &min_rate); if (ret) { dev_err(rpi->dev, "Failed to get %s min freq: %d\n", init.name, ret); return ret; }

- ret = raspberrypi_clock_property(rpi->firmware, + ret = raspberrypi_clock_property(rpi->firmware, data, RPI_FIRMWARE_GET_MAX_CLOCK_RATE, - data->id, &max_rate); + &max_rate); if (ret) { dev_err(rpi->dev, "Failed to get %s max freq: %d\n", init.name, ret);

The driver only supports the pllb for now and all the clock framework hooks are a mix of the generic firmware interface and the specifics of the pllb. Since we will support more clocks in the future let's split the generic and specific hooks

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 30 ++++++++++++++++++++++-------- 1 file changed, 22 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 13b7ee148824..6ee2c6639604 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -104,8 +104,8 @@ static int raspberrypi_fw_is_prepared(struct clk_hw *hw) }

-static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw, - unsigned long parent_rate) +static unsigned long raspberrypi_fw_get_rate(struct clk_hw *hw, + unsigned long parent_rate) { struct raspberrypi_clk_data *data = container_of(hw, struct raspberrypi_clk_data, hw); @@ -118,21 +118,27 @@ static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw, if (ret) return ret;

- return val * RPI_FIRMWARE_PLLB_ARM_DIV_RATE; + return val; }

-static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) +static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return raspberrypi_fw_get_rate(hw, parent_rate) * + RPI_FIRMWARE_PLLB_ARM_DIV_RATE; +} + +static int raspberrypi_fw_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { struct raspberrypi_clk_data *data = container_of(hw, struct raspberrypi_clk_data, hw); struct raspberrypi_clk *rpi = data->rpi; - u32 new_rate = rate / RPI_FIRMWARE_PLLB_ARM_DIV_RATE; + u32 _rate = rate; int ret;

ret = raspberrypi_clock_property(rpi->firmware, data, - RPI_FIRMWARE_SET_CLOCK_RATE, - &new_rate); + RPI_FIRMWARE_SET_CLOCK_RATE, &_rate); if (ret) dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d", clk_hw_get_name(hw), ret); @@ -140,6 +146,14 @@ static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate, return ret; }

+static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + u32 new_rate = rate / RPI_FIRMWARE_PLLB_ARM_DIV_RATE; + + return raspberrypi_fw_set_rate(hw, new_rate, parent_rate); +} + /* * Sadly there is no firmware rate rounding interface. We borrowed it from * clk-bcm2835.

The raspberrypi_register_pllb has been returning an integer so far to notify whether the functions has exited successfully or not.

However, the OF provider functions in the clock framework require access to the clk_hw structure so that we can expose those clocks to device tree consumers.

Since we'll want that for the future clocks, let's return a clk_hw pointer instead of the return code.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 40 +++++++++++++++++--------------- 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 6ee2c6639604..db5de9073930 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -190,7 +190,7 @@ static const struct clk_ops raspberrypi_firmware_pll_clk_ops = { .determine_rate = raspberrypi_pll_determine_rate, };

-static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) +static struct clk_hw *raspberrypi_register_pllb(struct raspberrypi_clk *rpi) { struct raspberrypi_clk_data *data; struct clk_init_data init = {}; @@ -199,7 +199,7 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi)

data = devm_kzalloc(rpi->dev, sizeof(*data), GFP_KERNEL); if (!data) - return -ENOMEM; + return ERR_PTR(-ENOMEM); data->rpi = rpi; data->id = RPI_FIRMWARE_ARM_CLK_ID;

@@ -217,7 +217,7 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) if (ret) { dev_err(rpi->dev, "Failed to get %s min freq: %d\n", init.name, ret); - return ret; + return ERR_PTR(ret); }

ret = raspberrypi_clock_property(rpi->firmware, data, @@ -226,13 +226,13 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi) if (ret) { dev_err(rpi->dev, "Failed to get %s max freq: %d\n", init.name, ret); - return ret; + return ERR_PTR(ret); }

if (!min_rate || !max_rate) { dev_err(rpi->dev, "Unexpected frequency range: min %u, max %u\n", min_rate, max_rate); - return -EINVAL; + return ERR_PTR(-EINVAL); }

dev_info(rpi->dev, "CPU frequency range: min %u, max %u\n", @@ -243,7 +243,11 @@ static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi)

data->hw.init = &init;

- return devm_clk_hw_register(rpi->dev, &data->hw); + ret = devm_clk_hw_register(rpi->dev, &data->hw); + if (ret) + return ERR_PTR(ret); + + return &data->hw; }

static struct clk_fixed_factor raspberrypi_clk_pllb_arm = { @@ -258,14 +262,14 @@ static struct clk_fixed_factor raspberrypi_clk_pllb_arm = { }, };

-static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) +static struct clk_hw *raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) { int ret;

ret = devm_clk_hw_register(rpi->dev, &raspberrypi_clk_pllb_arm.hw); if (ret) { dev_err(rpi->dev, "Failed to initialize pllb_arm\n"); - return ret; + return ERR_PTR(ret); }

ret = devm_clk_hw_register_clkdev(rpi->dev, @@ -273,10 +277,10 @@ static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) NULL, "cpu0"); if (ret) { dev_err(rpi->dev, "Failed to initialize clkdev\n"); - return ret; + return ERR_PTR(ret); }

- return 0; + return &raspberrypi_clk_pllb_arm.hw; }

static int raspberrypi_clk_probe(struct platform_device *pdev) @@ -285,7 +289,7 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct rpi_firmware *firmware; struct raspberrypi_clk *rpi; - int ret; + struct clk_hw *hw;

firmware_node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0); if (!firmware_node) { @@ -305,15 +309,15 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) rpi->firmware = firmware; platform_set_drvdata(pdev, rpi);

- ret = raspberrypi_register_pllb(rpi); - if (ret) { - dev_err(dev, "Failed to initialize pllb, %d\n", ret); - return ret; + hw = raspberrypi_register_pllb(rpi); + if (IS_ERR(hw)) { + dev_err(dev, "Failed to initialize pllb, %ld\n", PTR_ERR(hw)); + return PTR_ERR(hw); }

- ret = raspberrypi_register_pllb_arm(rpi); - if (ret) - return ret; + hw = raspberrypi_register_pllb_arm(rpi); + if (IS_ERR(hw)) + return PTR_ERR(hw);

rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq", -1, NULL, 0);

For the upcoming registration of the clocks provided by the firmware, make sure it's exposed to the device tree providers.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index db5de9073930..3f21888a3e3e 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -31,6 +31,8 @@

#define A2W_PLL_FRAC_BITS 20

+#define NUM_FW_CLKS 16 + struct raspberrypi_clk { struct device *dev; struct rpi_firmware *firmware; @@ -285,6 +287,7 @@ static struct clk_hw *raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi)

static int raspberrypi_clk_probe(struct platform_device *pdev) { + struct clk_hw_onecell_data *clk_data; struct device_node *firmware_node; struct device *dev = &pdev->dev; struct rpi_firmware *firmware; @@ -309,6 +312,11 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) rpi->firmware = firmware; platform_set_drvdata(pdev, rpi);

+ clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, NUM_FW_CLKS), + GFP_KERNEL); + if (!clk_data) + return -ENOMEM; + hw = raspberrypi_register_pllb(rpi); if (IS_ERR(hw)) { dev_err(dev, "Failed to initialize pllb, %ld\n", PTR_ERR(hw)); @@ -318,6 +326,13 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) hw = raspberrypi_register_pllb_arm(rpi); if (IS_ERR(hw)) return PTR_ERR(hw); + clk_data->hws[RPI_FIRMWARE_ARM_CLK_ID] = hw; + clk_data->num = RPI_FIRMWARE_ARM_CLK_ID + 1; + + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, + clk_data); + if (ret) + return ret;

rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq", -1, NULL, 0);

The firmware has an interface to discover the clocks it exposes.

Let's use it to discover, register the clocks in the clocks framework and then expose them through the device tree for consumers to use them.

Cc: Michael Turquette mturquette@baylibre.com Cc: Stephen Boyd sboyd@kernel.org Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/clk/bcm/clk-raspberrypi.c | 105 +++++++++++++++++++--- include/soc/bcm2835/raspberrypi-firmware.h | 5 +- 2 files changed, 98 insertions(+), 12 deletions(-)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 3f21888a3e3e..bf6a1e2dc099 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -285,6 +285,95 @@ static struct clk_hw *raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi) return &raspberrypi_clk_pllb_arm.hw; }

+static long raspberrypi_fw_dumb_round_rate(struct clk_hw *hw, + unsigned long rate, + unsigned long *parent_rate) +{ + return rate; +} + +static const struct clk_ops raspberrypi_firmware_clk_ops = { + .is_prepared = raspberrypi_fw_is_prepared, + .recalc_rate = raspberrypi_fw_get_rate, + .round_rate = raspberrypi_fw_dumb_round_rate, + .set_rate = raspberrypi_fw_set_rate, +}; + +static struct clk_hw *raspberrypi_clk_register(struct raspberrypi_clk *rpi, + unsigned int parent, + unsigned int id) +{ + struct raspberrypi_clk_data *data; + struct clk_init_data init = {}; + int ret; + + if (id == RPI_FIRMWARE_ARM_CLK_ID) { + struct clk_hw *hw; + + hw = raspberrypi_register_pllb(rpi); + if (IS_ERR(hw)) { + dev_err(rpi->dev, "Failed to initialize pllb, %ld\n", + PTR_ERR(hw)); + return hw; + } + + hw = raspberrypi_register_pllb_arm(rpi); + if (IS_ERR(hw)) + return hw; + + return hw; + } + + data = devm_kzalloc(rpi->dev, sizeof(data), GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); + data->rpi = rpi; + data->id = id; + + init.name = devm_kasprintf(rpi->dev, GFP_KERNEL, "fw-clk-%u", id); + init.ops = &raspberrypi_firmware_clk_ops; + init.flags = CLK_GET_RATE_NOCACHE | CLK_IGNORE_UNUSED; + + data->hw.init = &init; + + ret = devm_clk_hw_register(rpi->dev, &data->hw); + if (ret) + return ERR_PTR(ret); + + return &data->hw; +} + +static int raspberrypi_discover_clocks(struct raspberrypi_clk *rpi, + struct clk_hw_onecell_data *data) +{ + struct rpi_firmware_get_clocks_response *clks; + size_t clks_size = NUM_FW_CLKS * sizeof(*clks); + int ret; + + clks = devm_kzalloc(rpi->dev, clks_size, GFP_KERNEL); + if (!clks) + return -ENOMEM; + + ret = rpi_firmware_property(rpi->firmware, RPI_FIRMWARE_GET_CLOCKS, + clks, clks_size); + if (ret) + return ret; + + while (clks->id) { + struct clk_hw *hw; + + hw = raspberrypi_clk_register(rpi, clks->parent, clks->id); + if (IS_ERR(hw)) + return PTR_ERR(hw); + + data->hws[clks->id] = hw; + data->num = clks->id + 1; + clks++; + } + + return 0; +} + static int raspberrypi_clk_probe(struct platform_device *pdev) { struct clk_hw_onecell_data *clk_data; @@ -292,7 +381,7 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct rpi_firmware *firmware; struct raspberrypi_clk *rpi; - struct clk_hw *hw; + int ret;

firmware_node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0); if (!firmware_node) { @@ -317,17 +406,9 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) if (!clk_data) return -ENOMEM;

- hw = raspberrypi_register_pllb(rpi); - if (IS_ERR(hw)) { - dev_err(dev, "Failed to initialize pllb, %ld\n", PTR_ERR(hw)); - return PTR_ERR(hw); - } - - hw = raspberrypi_register_pllb_arm(rpi); - if (IS_ERR(hw)) - return PTR_ERR(hw); - clk_data->hws[RPI_FIRMWARE_ARM_CLK_ID] = hw; - clk_data->num = RPI_FIRMWARE_ARM_CLK_ID + 1; + ret = raspberrypi_discover_clocks(rpi, clk_data); + if (ret) + return ret;

ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_data); diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 7800e12ee042..e5b7a41bba6b 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -135,6 +135,11 @@ enum rpi_firmware_property_tag { RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001, };

+struct rpi_firmware_get_clocks_response { + __le32 parent; + __le32 id; +}; + #if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE) int rpi_firmware_property(struct rpi_firmware *fw, u32 tag, void *data, size_t len);

The reset-simple code can be useful for drivers outside of drivers/reset that have a few reset controls as part of their features. Let's move it to include/linux/reset.

Cc: Philipp Zabel p.zabel@pengutronix.de Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/reset/reset-simple.c | 3 +-- drivers/reset/reset-simple.h | 41 +------------------------------ drivers/reset/reset-socfpga.c | 3 +-- drivers/reset/reset-sunxi.c | 3 +-- drivers/reset/reset-uniphier-glue.c | 3 +-- include/linux/reset/reset-simple.h | 41 ++++++++++++++++++++++++++++++- 6 files changed, 45 insertions(+), 49 deletions(-) delete mode 100644 drivers/reset/reset-simple.h create mode 100644 include/linux/reset/reset-simple.h

diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c index 067e7e7b34f1..c854aa351640 100644 --- a/drivers/reset/reset-simple.c +++ b/drivers/reset/reset-simple.c @@ -18,10 +18,9 @@ #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/reset-controller.h> +#include <linux/reset/reset-simple.h> #include <linux/spinlock.h>

-#include "reset-simple.h" - static inline struct reset_simple_data * to_reset_simple_data(struct reset_controller_dev *rcdev) { diff --git a/drivers/reset/reset-simple.h b/drivers/reset/reset-simple.h deleted file mode 100644 index 08ccb25a55e6..000000000000 --- a/drivers/reset/reset-simple.h +++ /dev/null @@ -1,41 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * Simple Reset Controller ops - * - * Based on Allwinner SoCs Reset Controller driver - * - * Copyright 2013 Maxime Ripard - * - * Maxime Ripard maxime.ripard@free-electrons.com - */ - -#ifndef __RESET_SIMPLE_H__ -#define __RESET_SIMPLE_H__ - -#include <linux/io.h> -#include <linux/reset-controller.h> -#include <linux/spinlock.h> - -/** - * struct reset_simple_data - driver data for simple reset controllers - * @lock: spinlock to protect registers during read-modify-write cycles - * @membase: memory mapped I/O register range - * @rcdev: reset controller device base structure - * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits - * are set to assert the reset. Note that this says nothing about - * the voltage level of the actual reset line. - * @status_active_low: if true, bits read back as cleared while the reset is - * asserted. Otherwise, bits read back as set while the - * reset is asserted. - */ -struct reset_simple_data { - spinlock_t lock; - void __iomem *membase; - struct reset_controller_dev rcdev; - bool active_low; - bool status_active_low; -}; - -extern const struct reset_control_ops reset_simple_ops; - -#endif /* __RESET_SIMPLE_H__ */ diff --git a/drivers/reset/reset-socfpga.c b/drivers/reset/reset-socfpga.c index 96953992c2bb..bdd984296196 100644 --- a/drivers/reset/reset-socfpga.c +++ b/drivers/reset/reset-socfpga.c @@ -11,13 +11,12 @@ #include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/reset-controller.h> +#include <linux/reset/reset-simple.h> #include <linux/reset/socfpga.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/types.h>

-#include "reset-simple.h" - #define SOCFPGA_NR_BANKS 8

static int a10_reset_init(struct device_node *np) diff --git a/drivers/reset/reset-sunxi.c b/drivers/reset/reset-sunxi.c index e7f169e57bcf..e752594b6971 100644 --- a/drivers/reset/reset-sunxi.c +++ b/drivers/reset/reset-sunxi.c @@ -14,13 +14,12 @@ #include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/reset-controller.h> +#include <linux/reset/reset-simple.h> #include <linux/reset/sunxi.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/types.h>

-#include "reset-simple.h" - static int sunxi_reset_init(struct device_node *np) { struct reset_simple_data *data; diff --git a/drivers/reset/reset-uniphier-glue.c b/drivers/reset/reset-uniphier-glue.c index 2b188b3bb69a..027990b79f61 100644 --- a/drivers/reset/reset-uniphier-glue.c +++ b/drivers/reset/reset-uniphier-glue.c @@ -9,8 +9,7 @@ #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/reset.h> - -#include "reset-simple.h" +#include <linux/reset/reset-simple.h>

#define MAX_CLKS 2 #define MAX_RSTS 2 diff --git a/include/linux/reset/reset-simple.h b/include/linux/reset/reset-simple.h new file mode 100644 index 000000000000..08ccb25a55e6 --- /dev/null +++ b/include/linux/reset/reset-simple.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Simple Reset Controller ops + * + * Based on Allwinner SoCs Reset Controller driver + * + * Copyright 2013 Maxime Ripard + * + * Maxime Ripard maxime.ripard@free-electrons.com + */ + +#ifndef __RESET_SIMPLE_H__ +#define __RESET_SIMPLE_H__ + +#include <linux/io.h> +#include <linux/reset-controller.h> +#include <linux/spinlock.h> + +/** + * struct reset_simple_data - driver data for simple reset controllers + * @lock: spinlock to protect registers during read-modify-write cycles + * @membase: memory mapped I/O register range + * @rcdev: reset controller device base structure + * @active_low: if true, bits are cleared to assert the reset. Otherwise, bits + * are set to assert the reset. Note that this says nothing about + * the voltage level of the actual reset line. + * @status_active_low: if true, bits read back as cleared while the reset is + * asserted. Otherwise, bits read back as set while the + * reset is asserted. + */ +struct reset_simple_data { + spinlock_t lock; + void __iomem *membase; + struct reset_controller_dev rcdev; + bool active_low; + bool status_active_low; +}; + +extern const struct reset_control_ops reset_simple_ops; + +#endif /* __RESET_SIMPLE_H__ */

The BCM283x SoCs have a display pipeline composed of several controllers with device tree bindings that are supported by Linux.

Now that we have the DT validation in place, let's split into separate files and convert the device tree bindings for those controllers to schemas.

Cc: Rob Herring robh+dt@kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt | 174 +------------------------------------------------------------------------ Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml | 66 +++++++++++++++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml | 73 ++++++++++++++++++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml | 75 +++++++++++++++++++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml | 37 +++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml | 40 +++++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml | 37 +++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml | 42 +++++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml | 34 ++++++++++++++- Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml | 44 ++++++++++++++++++- MAINTAINERS | 2 +- 11 files changed, 449 insertions(+), 175 deletions(-) delete mode 100644 Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt deleted file mode 100644 index 26649b4c4dd8..000000000000 --- a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt +++ /dev/null @@ -1,174 +0,0 @@ -Broadcom VC4 (VideoCore4) GPU - -The VC4 device present on the Raspberry Pi includes a display system -with HDMI output and the HVS (Hardware Video Scaler) for compositing -display planes. - -Required properties for VC4: -- compatible: Should be "brcm,bcm2835-vc4" or "brcm,cygnus-vc4" - -Required properties for Pixel Valve: -- compatible: Should be one of "brcm,bcm2835-pixelvalve0", - "brcm,bcm2835-pixelvalve1", or "brcm,bcm2835-pixelvalve2" -- reg: Physical base address and length of the PV's registers -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt - -Required properties for HVS: -- compatible: Should be "brcm,bcm2835-hvs" -- reg: Physical base address and length of the HVS's registers -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt - -Required properties for HDMI -- compatible: Should be "brcm,bcm2835-hdmi" -- reg: Physical base address and length of the two register ranges - ("HDMI" and "HD", in that order) -- interrupts: The interrupt numbers - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt -- ddc: phandle of the I2C controller used for DDC EDID probing -- clocks: a) hdmi: The HDMI state machine clock - b) pixel: The pixel clock. - -Optional properties for HDMI: -- hpd-gpios: The GPIO pin for HDMI hotplug detect (if it doesn't appear - as an interrupt/status bit in the HDMI controller - itself). See bindings/pinctrl/brcm,bcm2835-gpio.txt -- dmas: Should contain one entry pointing to the DMA channel used to - transfer audio data -- dma-names: Should contain "audio-rx" - -Required properties for DPI: -- compatible: Should be "brcm,bcm2835-dpi" -- reg: Physical base address and length of the registers -- clocks: a) core: The core clock the unit runs on - b) pixel: The pixel clock that feeds the pixelvalve -- port: Port node with a single endpoint connecting to the panel - device, as defined in [1] - -Required properties for VEC: -- compatible: Should be "brcm,bcm2835-vec" -- reg: Physical base address and length of the registers -- clocks: The core clock the unit runs on -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt - -Required properties for V3D: -- compatible: Should be "brcm,bcm2835-v3d" or "brcm,cygnus-v3d" -- reg: Physical base address and length of the V3D's registers -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt - -Optional properties for V3D: -- clocks: The clock the unit runs on - -Required properties for DSI: -- compatible: Should be "brcm,bcm2835-dsi0" or "brcm,bcm2835-dsi1" -- reg: Physical base address and length of the DSI block's registers -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt -- clocks: a) phy: The DSI PLL clock feeding the DSI analog PHY - b) escape: The DSI ESC clock from CPRMAN - c) pixel: The DSI pixel clock from CPRMAN -- clock-output-names: - The 3 clocks output from the DSI analog PHY: dsi[01]_byte, - dsi[01]_ddr2, and dsi[01]_ddr - -Required properties for the TXP (writeback) block: -- compatible: Should be "brcm,bcm2835-txp" -- reg: Physical base address and length of the TXP block's registers -- interrupts: The interrupt number - See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt - -[1] Documentation/devicetree/bindings/media/video-interfaces.txt - -Example: -pixelvalve@7e807000 { - compatible = "brcm,bcm2835-pixelvalve2"; - reg = <0x7e807000 0x100>; - interrupts = <2 10>; /* pixelvalve */ -}; - -hvs@7e400000 { - compatible = "brcm,bcm2835-hvs"; - reg = <0x7e400000 0x6000>; - interrupts = <2 1>; -}; - -hdmi: hdmi@7e902000 { - compatible = "brcm,bcm2835-hdmi"; - reg = <0x7e902000 0x600>, - <0x7e808000 0x100>; - interrupts = <2 8>, <2 9>; - ddc = <&i2c2>; - hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; - clocks = <&clocks BCM2835_PLLH_PIX>, - <&clocks BCM2835_CLOCK_HSM>; - clock-names = "pixel", "hdmi"; -}; - -dpi: dpi@7e208000 { - compatible = "brcm,bcm2835-dpi"; - reg = <0x7e208000 0x8c>; - clocks = <&clocks BCM2835_CLOCK_VPU>, - <&clocks BCM2835_CLOCK_DPI>; - clock-names = "core", "pixel"; - #address-cells = <1>; - #size-cells = <0>; - - port { - dpi_out: endpoint@0 { - remote-endpoint = <&panel_in>; - }; - }; -}; - -dsi1: dsi@7e700000 { - compatible = "brcm,bcm2835-dsi1"; - reg = <0x7e700000 0x8c>; - interrupts = <2 12>; - #address-cells = <1>; - #size-cells = <0>; - #clock-cells = <1>; - - clocks = <&clocks BCM2835_PLLD_DSI1>, - <&clocks BCM2835_CLOCK_DSI1E>, - <&clocks BCM2835_CLOCK_DSI1P>; - clock-names = "phy", "escape", "pixel"; - - clock-output-names = "dsi1_byte", "dsi1_ddr2", "dsi1_ddr"; - - pitouchscreen: panel@0 { - compatible = "raspberrypi,touchscreen"; - reg = <0>; - - <...> - }; -}; - -vec: vec@7e806000 { - compatible = "brcm,bcm2835-vec"; - reg = <0x7e806000 0x1000>; - clocks = <&clocks BCM2835_CLOCK_VEC>; - interrupts = <2 27>; -}; - -v3d: v3d@7ec00000 { - compatible = "brcm,bcm2835-v3d"; - reg = <0x7ec00000 0x1000>; - interrupts = <1 10>; -}; - -vc4: gpu { - compatible = "brcm,bcm2835-vc4"; -}; - -panel: panel { - compatible = "ontat,yx700wv03", "simple-panel"; - - port { - panel_in: endpoint { - remote-endpoint = <&dpi_out>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml new file mode 100644 index 000000000000..288494b70e82 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-dpi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) DPI Controller + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + const: brcm,bcm2835-dpi + + reg: + maxItems: 1 + + clocks: + items: + - description: The core clock the unit runs on + - description: The pixel clock that feeds the pixelvalve + + port: + type: object + description: > + Port node with a single endpoint connecting to the panel, as + defined in Documentation/devicetree/bindings/media/video-interfaces.txt. + +required: + - compatible + - reg + - clocks + - port + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/bcm2835.h> + + panel: panel { + compatible = "ontat,yx700wv03", "simple-panel"; + + port { + panel_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + }; + + dpi: dpi@7e208000 { + compatible = "brcm,bcm2835-dpi"; + reg = <0x7e208000 0x8c>; + clocks = <&clocks BCM2835_CLOCK_VPU>, + <&clocks BCM2835_CLOCK_DPI>; + clock-names = "core", "pixel"; + + port { + dpi_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml new file mode 100644 index 000000000000..3887675f844e --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-dsi0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) DSI Controller + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + enum: + - brcm,bcm2835-dsi0 + - brcm,bcm2835-dsi1 + + reg: + maxItems: 1 + + clocks: + items: + - description: The DSI PLL clock feeding the DSI analog PHY + - description: The DSI ESC clock + - description: The DSI pixel clock + + clock-output-names: true + # FIXME: The meta-schemas don't seem to allow it for now + # items: + # - description: The DSI byte clock for the PHY + # - description: The DSI DDR2 clock + # - description: The DSI DDR clock + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - clock-output-names + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/bcm2835.h> + + dsi1: dsi@7e700000 { + compatible = "brcm,bcm2835-dsi1"; + reg = <0x7e700000 0x8c>; + interrupts = <2 12>; + #address-cells = <1>; + #size-cells = <0>; + #clock-cells = <1>; + + clocks = <&clocks BCM2835_PLLD_DSI1>, + <&clocks BCM2835_CLOCK_DSI1E>, + <&clocks BCM2835_CLOCK_DSI1P>; + clock-names = "phy", "escape", "pixel"; + + clock-output-names = "dsi1_byte", "dsi1_ddr2", "dsi1_ddr"; + + pitouchscreen: panel@0 { + compatible = "raspberrypi,touchscreen"; + reg = <0>; + + /* ... */ + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml new file mode 100644 index 000000000000..834cc5f1c254 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-hdmi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) HDMI Controller + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + const: brcm,bcm2835-hdmi + + reg: + items: + - description: HDMI register range + - description: HD register range + + interrupts: + minItems: 2 + + clocks: + items: + - description: The HDMI state machine clock + - description: The pixel clock + + ddc: + allOf: + - $ref: /schemas/types.yaml#/definitions/phandle + description: > + Phandle of the I2C controller used for DDC EDID probing + + hpd-gpios: + description: > + The GPIO pin for the HDMI hotplug detect (if it doesn't appear + as an interrupt/status bit in the HDMI controller itself) + + dmas: + maxItems: 1 + description: > + Should contain one entry pointing to the DMA channel used to + transfer audio data. + + dma-names: + const: audio-rx + +required: + - compatible + - reg + - interrupts + - clocks + - ddc + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/bcm2835.h> + #include <dt-bindings/gpio/gpio.h> + + hdmi: hdmi@7e902000 { + compatible = "brcm,bcm2835-hdmi"; + reg = <0x7e902000 0x600>, + <0x7e808000 0x100>; + interrupts = <2 8>, <2 9>; + ddc = <&i2c2>; + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; + clocks = <&clocks BCM2835_PLLH_PIX>, + <&clocks BCM2835_CLOCK_HSM>; + clock-names = "pixel", "hdmi"; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml new file mode 100644 index 000000000000..02410f8d6d49 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-hvs.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) Hardware Video Scaler + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + const: brcm,bcm2835-hvs + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + hvs@7e400000 { + compatible = "brcm,bcm2835-hvs"; + reg = <0x7e400000 0x6000>; + interrupts = <2 1>; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml new file mode 100644 index 000000000000..e60791db1fa1 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-pixelvalve0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) PixelValve + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + enum: + - brcm,bcm2835-pixelvalve0 + - brcm,bcm2835-pixelvalve1 + - brcm,bcm2835-pixelvalve2 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + pixelvalve@7e807000 { + compatible = "brcm,bcm2835-pixelvalve2"; + reg = <0x7e807000 0x100>; + interrupts = <2 10>; /* pixelvalve */ + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml new file mode 100644 index 000000000000..bb186197e471 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-txp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) TXP (writeback) Controller + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + const: brcm,bcm2835-txp + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + txp: txp@7e004000 { + compatible = "brcm,bcm2835-txp"; + reg = <0x7e004000 0x20>; + interrupts = <1 11>; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml new file mode 100644 index 000000000000..8a73780f573d --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-v3d.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) V3D GPU + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + enum: + - brcm,bcm2835-v3d + - brcm,cygnus-v3d + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + v3d: v3d@7ec00000 { + compatible = "brcm,bcm2835-v3d"; + reg = <0x7ec00000 0x1000>; + interrupts = <1 10>; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml new file mode 100644 index 000000000000..0dcf0c397375 --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-vc4.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) GPU + +maintainers: + - Eric Anholt eric@anholt.net + +description: > + The VC4 device present on the Raspberry Pi includes a display system + with HDMI output and the HVS (Hardware Video Scaler) for compositing + display planes. + +properties: + compatible: + enum: + - brcm,bcm2835-vc4 + - brcm,cygnus-vc4 + +required: + - compatible + +additionalProperties: false + +examples: + - | + vc4: gpu { + compatible = "brcm,bcm2835-vc4"; + }; + +... diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml new file mode 100644 index 000000000000..d900cc57b4ec --- /dev/null +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/brcm,bcm2835-vec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom VC4 (VideoCore4) VEC + +maintainers: + - Eric Anholt eric@anholt.net + +properties: + compatible: + const: brcm,bcm2835-vec + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/bcm2835.h> + + vec: vec@7e806000 { + compatible = "brcm,bcm2835-vec"; + reg = <0x7e806000 0x1000>; + clocks = <&clocks BCM2835_CLOCK_VEC>; + interrupts = <2 27>; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 9e45ed8be540..a1ab16c8f592 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5698,7 +5698,7 @@ T: git git://github.com/anholt/linux S: Supported F: drivers/gpu/drm/vc4/ F: include/uapi/drm/vc4_drm.h -F: Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt +F: Documentation/devicetree/bindings/display/brcm,bcm2835-*.yaml T: git git://anongit.freedesktop.org/drm/drm-misc

DRM DRIVERS FOR VIVANTE GPU IP

While the device tree and the driver expected a clock-names property, it wasn't explicitly documented in the previous binding. Make sure it is now.

Cc: Rob Herring robh+dt@kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml index 288494b70e82..58213c564e03 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml @@ -21,6 +21,11 @@ properties: - description: The core clock the unit runs on - description: The pixel clock that feeds the pixelvalve

+ clock-names: + items: + - const: core + - const: pixel + port: type: object description: > @@ -31,6 +36,7 @@ required: - compatible - reg - clocks + - clock-names - port

additionalProperties: false

While the device tree and the driver expected a clock-names and a clock-cells properties, it wasn't explicitly documented in the previous binding. Make sure it is now.

Cc: Rob Herring robh+dt@kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml | 11 +++++++- 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml index 3887675f844e..3c643b227a70 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml @@ -10,6 +10,9 @@ maintainers: - Eric Anholt eric@anholt.net

properties: + "#clock-cells": + const: 1 + compatible: enum: - brcm,bcm2835-dsi0 @@ -24,6 +27,12 @@ properties: - description: The DSI ESC clock - description: The DSI pixel clock

+ clock-names: + items: + - const: phy + - const: escape + - const: pixel + clock-output-names: true # FIXME: The meta-schemas don't seem to allow it for now # items: @@ -35,9 +44,11 @@ properties: maxItems: 1

required: + - "#clock-cells" - compatible - reg - clocks + - clock-names - clock-output-names - interrupts

While the device tree and the driver expected a clock-names property, it wasn't explicitly documented in the previous binding. The documented order was wrong too, so make sure clock-names is there and in the proper order.

Cc: Rob Herring robh+dt@kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml index 834cc5f1c254..52b3cdac0bdf 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml @@ -23,8 +23,13 @@ properties:

clocks: items: - - description: The HDMI state machine clock - description: The pixel clock + - description: The HDMI state machine clock + + clock-names: + items: + - const: pixel + - const: hdmi

ddc: allOf:

The BCM2711 comes with a new VideoCore. Add a compatible for it.

Cc: Rob Herring robh+dt@kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml | 1 + 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml index 0dcf0c397375..49a5e041aa49 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml @@ -17,6 +17,7 @@ description: > properties: compatible: enum: + - brcm,bcm2711-vc5 - brcm,bcm2835-vc4 - brcm,cygnus-vc4

vc4_drv.h doesn't have any include guards which prevents it from being included twice. Let's add them.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_drv.h | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 6627b20c99e9..0a2447bb0f5d 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -2,6 +2,8 @@ /* * Copyright (C) 2015 Broadcom */ +#ifndef _VC4_DRV_H_ +#define _VC4_DRV_H_

#include <linux/delay.h> #include <linux/refcount.h> @@ -892,3 +894,5 @@ int vc4_perfmon_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int vc4_perfmon_get_values_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); + +#endif /* _VC4_DRV_H_ */

From: Dave Stevenson dave.stevenson@raspberrypi.org

The HVS found in the BCM2711 is slightly different from the previous generations.

Most notably, the display list layout changes a bit, the LBM doesn't have the same size and the formats ordering for some formats is swapped.

Signed-off-by: Dave Stevenson dave.stevenson@raspberrypi.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 24 +++- drivers/gpu/drm/vc4/vc4_drv.h | 4 +- drivers/gpu/drm/vc4/vc4_hvs.c | 17 ++- drivers/gpu/drm/vc4/vc4_plane.c | 194 ++++++++++++++++++++++++--------- drivers/gpu/drm/vc4/vc4_regs.h | 67 +++++++++++- 5 files changed, 247 insertions(+), 59 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index b00e20f5ce05..381702b9f057 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -550,6 +550,7 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc, struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state); struct drm_display_mode *mode = &crtc->state->adjusted_mode; + u32 dispctrl;

require_hvs_enabled(dev);

@@ -564,11 +565,24 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc, * When feeding the transposer, we should operate in oneshot * mode. */ - HVS_WRITE(SCALER_DISPCTRLX(vc4_crtc->channel), - VC4_SET_FIELD(mode->hdisplay, SCALER_DISPCTRLX_WIDTH) | - VC4_SET_FIELD(mode->vdisplay, SCALER_DISPCTRLX_HEIGHT) | - SCALER_DISPCTRLX_ENABLE | - (vc4_state->feed_txp ? SCALER_DISPCTRLX_ONESHOT : 0)); + dispctrl = SCALER_DISPCTRLX_ENABLE; + + if (!vc4->hvs->hvs5) + dispctrl |= VC4_SET_FIELD(mode->hdisplay, + SCALER_DISPCTRLX_WIDTH) | + VC4_SET_FIELD(mode->vdisplay, + SCALER_DISPCTRLX_HEIGHT) | + (vc4_state->feed_txp ? + SCALER_DISPCTRLX_ONESHOT : 0); + else + dispctrl |= VC4_SET_FIELD(mode->hdisplay, + SCALER5_DISPCTRLX_WIDTH) | + VC4_SET_FIELD(mode->vdisplay, + SCALER5_DISPCTRLX_HEIGHT) | + (vc4_state->feed_txp ? + SCALER5_DISPCTRLX_ONESHOT : 0); + + HVS_WRITE(SCALER_DISPCTRLX(vc4_crtc->channel), dispctrl);

/* When feeding the transposer block the pixelvalve is unneeded and * should not be enabled. diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index c8dc04183c7b..63c05c764942 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -332,7 +332,11 @@ struct vc4_hvs { spinlock_t mm_lock;

struct drm_mm_node mitchell_netravali_filter; + struct debugfs_regset32 regset; + + /* HVS version 5 flag, therefore requires updated dlist structures */ + bool hvs5; };

struct vc4_plane { diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index 5a43659da319..4ca831414c5e 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -223,6 +223,7 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) struct vc4_hvs *hvs = NULL; int ret; u32 dispctrl; + unsigned int hvs_version;

hvs = devm_kzalloc(&pdev->dev, sizeof(*hvs), GFP_KERNEL); if (!hvs) @@ -238,7 +239,14 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) hvs->regset.regs = hvs_regs; hvs->regset.nregs = ARRAY_SIZE(hvs_regs);

- hvs->dlist = hvs->regs + SCALER_DLIST_START; + hvs_version = readl(hvs->regs + SCALER_DISPLSTAT) >> 24; + if (hvs_version >= 0x40) + hvs->hvs5 = true; + + if (!hvs->hvs5) + hvs->dlist = hvs->regs + SCALER_DLIST_START; + else + hvs->dlist = hvs->regs + SCALER5_DLIST_START;

spin_lock_init(&hvs->mm_lock);

@@ -256,7 +264,12 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) * between planes when they don't overlap on the screen, but * for now we just allocate globally. */ - drm_mm_init(&hvs->lbm_mm, 0, 96 * 1024); + if (!hvs->hvs5) + /* 96kB */ + drm_mm_init(&hvs->lbm_mm, 0, 96 * 1024); + else + /* 70k words */ + drm_mm_init(&hvs->lbm_mm, 0, 70 * 2 * 1024);

/* Upload filter kernels. We only have the one for now, so we * keep it around for the lifetime of the driver. diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 07a145e286f7..0b8309247dec 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -32,45 +32,60 @@ static const struct hvs_format { u32 drm; /* DRM_FORMAT_* */ u32 hvs; /* HVS_FORMAT_* */ u32 pixel_order; + u32 pixel_order_hvs5; } hvs_formats[] = { { - .drm = DRM_FORMAT_XRGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .drm = DRM_FORMAT_XRGB8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, }, { - .drm = DRM_FORMAT_ARGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .drm = DRM_FORMAT_ARGB8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, .pixel_order = HVS_PIXEL_ORDER_ABGR, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ARGB, }, { - .drm = DRM_FORMAT_ABGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .drm = DRM_FORMAT_ABGR8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_XBGR8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888, + .drm = DRM_FORMAT_XBGR8888, + .hvs = HVS_PIXEL_FORMAT_RGBA8888, .pixel_order = HVS_PIXEL_ORDER_ARGB, + .pixel_order_hvs5 = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_RGB565, .hvs = HVS_PIXEL_FORMAT_RGB565, + .drm = DRM_FORMAT_RGB565, + .hvs = HVS_PIXEL_FORMAT_RGB565, .pixel_order = HVS_PIXEL_ORDER_XRGB, }, { - .drm = DRM_FORMAT_BGR565, .hvs = HVS_PIXEL_FORMAT_RGB565, + .drm = DRM_FORMAT_BGR565, + .hvs = HVS_PIXEL_FORMAT_RGB565, .pixel_order = HVS_PIXEL_ORDER_XBGR, }, { - .drm = DRM_FORMAT_ARGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551, + .drm = DRM_FORMAT_ARGB1555, + .hvs = HVS_PIXEL_FORMAT_RGBA5551, .pixel_order = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_XRGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551, + .drm = DRM_FORMAT_XRGB1555, + .hvs = HVS_PIXEL_FORMAT_RGBA5551, .pixel_order = HVS_PIXEL_ORDER_ABGR, }, { - .drm = DRM_FORMAT_RGB888, .hvs = HVS_PIXEL_FORMAT_RGB888, + .drm = DRM_FORMAT_RGB888, + .hvs = HVS_PIXEL_FORMAT_RGB888, .pixel_order = HVS_PIXEL_ORDER_XRGB, }, { - .drm = DRM_FORMAT_BGR888, .hvs = HVS_PIXEL_FORMAT_RGB888, + .drm = DRM_FORMAT_BGR888, + .hvs = HVS_PIXEL_FORMAT_RGB888, .pixel_order = HVS_PIXEL_ORDER_XBGR, }, { @@ -781,35 +796,6 @@ static int vc4_plane_mode_set(struct drm_plane *plane, return -EINVAL; }

- /* Control word */ - vc4_dlist_write(vc4_state, - SCALER_CTL0_VALID | - (rotation & DRM_MODE_REFLECT_X ? SCALER_CTL0_HFLIP : 0) | - (rotation & DRM_MODE_REFLECT_Y ? SCALER_CTL0_VFLIP : 0) | - VC4_SET_FIELD(SCALER_CTL0_RGBA_EXPAND_ROUND, SCALER_CTL0_RGBA_EXPAND) | - (format->pixel_order << SCALER_CTL0_ORDER_SHIFT) | - (hvs_format << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | - VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | - (vc4_state->is_unity ? SCALER_CTL0_UNITY : 0) | - VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | - VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1)); - - /* Position Word 0: Image Positions and Alpha Value */ - vc4_state->pos0_offset = vc4_state->dlist_count; - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(state->alpha >> 8, SCALER_POS0_FIXED_ALPHA) | - VC4_SET_FIELD(vc4_state->crtc_x, SCALER_POS0_START_X) | - VC4_SET_FIELD(vc4_state->crtc_y, SCALER_POS0_START_Y)); - - /* Position Word 1: Scaled Image Dimensions. */ - if (!vc4_state->is_unity) { - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(vc4_state->crtc_w, - SCALER_POS1_SCL_WIDTH) | - VC4_SET_FIELD(vc4_state->crtc_h, - SCALER_POS1_SCL_HEIGHT)); - } - /* Don't waste cycles mixing with plane alpha if the set alpha * is opaque or there is no per-pixel alpha information. * In any case we use the alpha property value as the fixed alpha. @@ -817,20 +803,120 @@ static int vc4_plane_mode_set(struct drm_plane *plane, mix_plane_alpha = state->alpha != DRM_BLEND_ALPHA_OPAQUE && fb->format->has_alpha;

- /* Position Word 2: Source Image Size, Alpha */ - vc4_state->pos2_offset = vc4_state->dlist_count; - vc4_dlist_write(vc4_state, - VC4_SET_FIELD(fb->format->has_alpha ? - SCALER_POS2_ALPHA_MODE_PIPELINE : - SCALER_POS2_ALPHA_MODE_FIXED, - SCALER_POS2_ALPHA_MODE) | - (mix_plane_alpha ? SCALER_POS2_ALPHA_MIX : 0) | - (fb->format->has_alpha ? SCALER_POS2_ALPHA_PREMULT : 0) | - VC4_SET_FIELD(vc4_state->src_w[0], SCALER_POS2_WIDTH) | - VC4_SET_FIELD(vc4_state->src_h[0], SCALER_POS2_HEIGHT)); + if (!vc4->hvs->hvs5) { + /* Control word */ + vc4_dlist_write(vc4_state, + SCALER_CTL0_VALID | + (rotation & DRM_MODE_REFLECT_X ? SCALER_CTL0_HFLIP : 0) | + (rotation & DRM_MODE_REFLECT_Y ? SCALER_CTL0_VFLIP : 0) | + VC4_SET_FIELD(SCALER_CTL0_RGBA_EXPAND_ROUND, SCALER_CTL0_RGBA_EXPAND) | + (format->pixel_order << SCALER_CTL0_ORDER_SHIFT) | + (hvs_format << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | + VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | + (vc4_state->is_unity ? SCALER_CTL0_UNITY : 0) | + VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | + VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1)); + + /* Position Word 0: Image Positions and Alpha Value */ + vc4_state->pos0_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(state->alpha >> 8, SCALER_POS0_FIXED_ALPHA) | + VC4_SET_FIELD(vc4_state->crtc_x, SCALER_POS0_START_X) | + VC4_SET_FIELD(vc4_state->crtc_y, SCALER_POS0_START_Y)); + + /* Position Word 1: Scaled Image Dimensions. */ + if (!vc4_state->is_unity) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_w, + SCALER_POS1_SCL_WIDTH) | + VC4_SET_FIELD(vc4_state->crtc_h, + SCALER_POS1_SCL_HEIGHT)); + } + + /* Position Word 2: Source Image Size, Alpha */ + vc4_state->pos2_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(fb->format->has_alpha ? + SCALER_POS2_ALPHA_MODE_PIPELINE : + SCALER_POS2_ALPHA_MODE_FIXED, + SCALER_POS2_ALPHA_MODE) | + (mix_plane_alpha ? SCALER_POS2_ALPHA_MIX : 0) | + (fb->format->has_alpha ? + SCALER_POS2_ALPHA_PREMULT : 0) | + VC4_SET_FIELD(vc4_state->src_w[0], + SCALER_POS2_WIDTH) | + VC4_SET_FIELD(vc4_state->src_h[0], + SCALER_POS2_HEIGHT)); + + /* Position Word 3: Context. Written by the HVS. */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); + + } else { + u32 hvs_pixel_order = format->pixel_order;

- /* Position Word 3: Context. Written by the HVS. */ - vc4_dlist_write(vc4_state, 0xc0c0c0c0); + if (format->pixel_order_hvs5) + hvs_pixel_order = format->pixel_order_hvs5; + + /* Control word */ + vc4_dlist_write(vc4_state, + SCALER_CTL0_VALID | + (hvs_pixel_order << SCALER_CTL0_ORDER_SHIFT) | + (hvs_format << SCALER_CTL0_PIXEL_FORMAT_SHIFT) | + VC4_SET_FIELD(tiling, SCALER_CTL0_TILING) | + (vc4_state->is_unity ? + SCALER5_CTL0_UNITY : 0) | + VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) | + VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1) | + SCALER5_CTL0_ALPHA_EXPAND | + SCALER5_CTL0_RGB_EXPAND); + + /* Position Word 0: Image Positions and Alpha Value */ + vc4_state->pos0_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + (rotation & DRM_MODE_REFLECT_Y ? + SCALER5_POS0_VFLIP : 0) | + VC4_SET_FIELD(vc4_state->crtc_x, + SCALER_POS0_START_X) | + (rotation & DRM_MODE_REFLECT_X ? + SCALER5_POS0_HFLIP : 0) | + VC4_SET_FIELD(vc4_state->crtc_y, + SCALER5_POS0_START_Y) + ); + + /* Control Word 2 */ + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(state->alpha >> 4, + SCALER5_CTL2_ALPHA) | + fb->format->has_alpha ? + SCALER5_CTL2_ALPHA_PREMULT : 0 | + (mix_plane_alpha ? + SCALER5_CTL2_ALPHA_MIX : 0) | + VC4_SET_FIELD(fb->format->has_alpha ? + SCALER5_CTL2_ALPHA_MODE_PIPELINE : + SCALER5_CTL2_ALPHA_MODE_FIXED, + SCALER5_CTL2_ALPHA_MODE) + ); + + /* Position Word 1: Scaled Image Dimensions. */ + if (!vc4_state->is_unity) { + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->crtc_w, + SCALER_POS1_SCL_WIDTH) | + VC4_SET_FIELD(vc4_state->crtc_h, + SCALER_POS1_SCL_HEIGHT)); + } + + /* Position Word 2: Source Image Size */ + vc4_state->pos2_offset = vc4_state->dlist_count; + vc4_dlist_write(vc4_state, + VC4_SET_FIELD(vc4_state->src_w[0], + SCALER5_POS2_WIDTH) | + VC4_SET_FIELD(vc4_state->src_h[0], + SCALER5_POS2_HEIGHT)); + + /* Position Word 3: Context. Written by the HVS. */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); + }

/* Pointer Word 0/1/2: RGB / Y / Cb / Cr Pointers @@ -1208,6 +1294,10 @@ static bool vc4_format_mod_supported(struct drm_plane *plane, default: return false; } + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRX1010102: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_BGRA1010102: case DRM_FORMAT_YUV422: case DRM_FORMAT_YVU422: case DRM_FORMAT_YUV420: diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index b5a6b4cdd332..8a51baf681fe 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -328,6 +328,20 @@ # define SCALER_DISPCTRLX_HEIGHT_MASK VC4_MASK(11, 0) # define SCALER_DISPCTRLX_HEIGHT_SHIFT 0

+# define SCALER5_DISPCTRLX_WIDTH_MASK VC4_MASK(28, 16) +# define SCALER5_DISPCTRLX_WIDTH_SHIFT 16 +/* Generates a single frame when VSTART is seen and stops at the last + * pixel read from the FIFO. + */ +# define SCALER5_DISPCTRLX_ONESHOT BIT(15) +/* Processes a single context in the dlist and then task switch, + * instead of an entire line. + */ +# define SCALER5_DISPCTRLX_ONECTX_MASK VC4_MASK(14, 13) +# define SCALER5_DISPCTRLX_ONECTX_SHIFT 13 +# define SCALER5_DISPCTRLX_HEIGHT_MASK VC4_MASK(12, 0) +# define SCALER5_DISPCTRLX_HEIGHT_SHIFT 0 + #define SCALER_DISPBKGND0 0x00000044 # define SCALER_DISPBKGND_AUTOHS BIT(31) # define SCALER_DISPBKGND_INTERLACE BIT(30) @@ -461,6 +475,8 @@ #define SCALER_DLIST_START 0x00002000 #define SCALER_DLIST_SIZE 0x00004000

+#define SCALER5_DLIST_START 0x00004000 + #define VC4_HDMI_CORE_REV 0x000

#define VC4_HDMI_SW_RESET_CONTROL 0x004 @@ -826,6 +842,8 @@ enum hvs_pixel_format { HVS_PIXEL_FORMAT_PALETTE = 13, HVS_PIXEL_FORMAT_YUV444_RGB = 14, HVS_PIXEL_FORMAT_AYUV444_RGB = 15, + HVS_PIXEL_FORMAT_RGBA1010102 = 16, + HVS_PIXEL_FORMAT_YCBCR_10BIT = 17, };

/* Note: the LSB is the rightmost character shown. Only valid for @@ -880,6 +898,10 @@ enum hvs_pixel_format { #define SCALER_CTL0_RGBA_EXPAND_MSB 2 #define SCALER_CTL0_RGBA_EXPAND_ROUND 3

+#define SCALER5_CTL0_ALPHA_EXPAND BIT(12) + +#define SCALER5_CTL0_RGB_EXPAND BIT(11) + #define SCALER_CTL0_SCL1_MASK VC4_MASK(10, 8) #define SCALER_CTL0_SCL1_SHIFT 8

@@ -897,10 +919,13 @@ enum hvs_pixel_format {

/* Set to indicate no scaling. */ #define SCALER_CTL0_UNITY BIT(4) +#define SCALER5_CTL0_UNITY BIT(15)

#define SCALER_CTL0_PIXEL_FORMAT_MASK VC4_MASK(3, 0) #define SCALER_CTL0_PIXEL_FORMAT_SHIFT 0

+#define SCALER5_CTL0_PIXEL_FORMAT_MASK VC4_MASK(4, 0) + #define SCALER_POS0_FIXED_ALPHA_MASK VC4_MASK(31, 24) #define SCALER_POS0_FIXED_ALPHA_SHIFT 24

@@ -910,12 +935,48 @@ enum hvs_pixel_format { #define SCALER_POS0_START_X_MASK VC4_MASK(11, 0) #define SCALER_POS0_START_X_SHIFT 0

+#define SCALER5_POS0_START_Y_MASK VC4_MASK(27, 16) +#define SCALER5_POS0_START_Y_SHIFT 16 + +#define SCALER5_POS0_START_X_MASK VC4_MASK(13, 0) +#define SCALER5_POS0_START_X_SHIFT 0 + +#define SCALER5_POS0_VFLIP BIT(31) +#define SCALER5_POS0_HFLIP BIT(15) + +#define SCALER5_CTL2_ALPHA_MODE_MASK VC4_MASK(31, 30) +#define SCALER5_CTL2_ALPHA_MODE_SHIFT 30 +#define SCALER5_CTL2_ALPHA_MODE_PIPELINE 0 +#define SCALER5_CTL2_ALPHA_MODE_FIXED 1 +#define SCALER5_CTL2_ALPHA_MODE_FIXED_NONZERO 2 +#define SCALER5_CTL2_ALPHA_MODE_FIXED_OVER_0x07 3 + +#define SCALER5_CTL2_ALPHA_PREMULT BIT(29) + +#define SCALER5_CTL2_ALPHA_MIX BIT(28) + +#define SCALER5_CTL2_ALPHA_LOC BIT(25) + +#define SCALER5_CTL2_MAP_SEL_MASK VC4_MASK(18, 17) +#define SCALER5_CTL2_MAP_SEL_SHIFT 17 + +#define SCALER5_CTL2_GAMMA BIT(16) + +#define SCALER5_CTL2_ALPHA_MASK VC4_MASK(15, 4) +#define SCALER5_CTL2_ALPHA_SHIFT 4 + #define SCALER_POS1_SCL_HEIGHT_MASK VC4_MASK(27, 16) #define SCALER_POS1_SCL_HEIGHT_SHIFT 16

#define SCALER_POS1_SCL_WIDTH_MASK VC4_MASK(11, 0) #define SCALER_POS1_SCL_WIDTH_SHIFT 0

+#define SCALER5_POS1_SCL_HEIGHT_MASK VC4_MASK(28, 16) +#define SCALER5_POS1_SCL_HEIGHT_SHIFT 16 + +#define SCALER5_POS1_SCL_WIDTH_MASK VC4_MASK(12, 0) +#define SCALER5_POS1_SCL_WIDTH_SHIFT 0 + #define SCALER_POS2_ALPHA_MODE_MASK VC4_MASK(31, 30) #define SCALER_POS2_ALPHA_MODE_SHIFT 30 #define SCALER_POS2_ALPHA_MODE_PIPELINE 0 @@ -931,6 +992,12 @@ enum hvs_pixel_format { #define SCALER_POS2_WIDTH_MASK VC4_MASK(11, 0) #define SCALER_POS2_WIDTH_SHIFT 0

+#define SCALER5_POS2_HEIGHT_MASK VC4_MASK(28, 16) +#define SCALER5_POS2_HEIGHT_SHIFT 16 + +#define SCALER5_POS2_WIDTH_MASK VC4_MASK(12, 0) +#define SCALER5_POS2_WIDTH_SHIFT 0 + /* Color Space Conversion words. Some values are S2.8 signed * integers, except that the 2 integer bits map as {0x0: 0, 0x1: 1, * 0x2: 2, 0x3: -1}

The planes so far were created as part of the CRTC binding code with each planes created associated only to one CRTC. However, the hardware in the vc4 doesn't really have such constraint and can be used with any CRTC.

In order to rework this, let's first move the overlay and cursor planes creation to a function of its own.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 33 +++--------------------------- drivers/gpu/drm/vc4/vc4_drv.h | 2 ++- drivers/gpu/drm/vc4/vc4_plane.c | 38 ++++++++++++++++++++++++++++++++++- 3 files changed, 44 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 381702b9f057..43cfc9ba18ba 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -1141,7 +1141,7 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) struct drm_device *drm = dev_get_drvdata(master); struct vc4_crtc *vc4_crtc; struct drm_crtc *crtc; - struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp; + struct drm_plane *primary_plane, *destroy_plane, *temp; const struct of_device_id *match; int ret, i;

@@ -1189,34 +1189,9 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) */ drm_crtc_enable_color_mgmt(crtc, 0, true, crtc->gamma_size);

- /* Set up some arbitrary number of planes. We're not limited - * by a set number of physical registers, just the space in - * the HVS (16k) and how small an plane can be (28 bytes). - * However, each plane we set up takes up some memory, and - * increases the cost of looping over planes, which atomic - * modesetting does quite a bit. As a result, we pick a - * modest number of planes to expose, that should hopefully - * still cover any sane usecase. - */ - for (i = 0; i < 8; i++) { - struct drm_plane *plane = - vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY); - - if (IS_ERR(plane)) - continue; - - plane->possible_crtcs = drm_crtc_mask(crtc); - } - - /* Set up the legacy cursor after overlay initialization, - * since we overlay planes on the CRTC in the order they were - * initialized. - */ - cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); - if (!IS_ERR(cursor_plane)) { - cursor_plane->possible_crtcs = drm_crtc_mask(crtc); - crtc->cursor = cursor_plane; - } + ret = vc4_plane_create_additional_planes(drm, crtc); + if (ret) + goto err_destroy_planes;

vc4_crtc_get_cob_allocation(vc4_crtc);

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 63c05c764942..cc73c06e019d 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -848,6 +848,8 @@ int vc4_kms_load(struct drm_device *dev); /* vc4_plane.c */ struct drm_plane *vc4_plane_init(struct drm_device *dev, enum drm_plane_type type); +int vc4_plane_create_additional_planes(struct drm_device *dev, + struct drm_crtc *crtc); u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist); u32 vc4_plane_dlist_size(const struct drm_plane_state *state); void vc4_plane_async_set_fb(struct drm_plane *plane, diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 26e96b15e9b4..e4dab514efef 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -1371,3 +1371,41 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,

return plane; } + +int vc4_plane_create_additional_planes(struct drm_device *drm, + struct drm_crtc *crtc) +{ + struct drm_plane *cursor_plane; + unsigned int i; + + /* Set up some arbitrary number of planes. We're not limited + * by a set number of physical registers, just the space in + * the HVS (16k) and how small an plane can be (28 bytes). + * However, each plane we set up takes up some memory, and + * increases the cost of looping over planes, which atomic + * modesetting does quite a bit. As a result, we pick a + * modest number of planes to expose, that should hopefully + * still cover any sane usecase. + */ + for (i = 0; i < 8; i++) { + struct drm_plane *plane = + vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY); + + if (IS_ERR(plane)) + continue; + + plane->possible_crtcs = drm_crtc_mask(crtc); + } + + /* Set up the legacy cursor after overlay initialization, + * since we overlay planes on the CRTC in the order they were + * initialized. + */ + cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); + if (!IS_ERR(cursor_plane)) { + cursor_plane->possible_crtcs = drm_crtc_mask(crtc); + crtc->cursor = cursor_plane; + } + + return 0; +}

Instead of creating planes for each CRTC, we eventually want to create all the planes for each CRTCs.

In order to make that more convenient, let's iterate on the CRTCs in the plane creation function instead of its caller.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_drv.c | 9 ++---- drivers/gpu/drm/vc4/vc4_drv.h | 3 +-- drivers/gpu/drm/vc4/vc4_plane.c | 54 +++++++++++++++++----------------- 3 files changed, 32 insertions(+), 34 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index d23e2ba86727..2c21c2fe0225 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -253,7 +253,6 @@ static int vc4_drm_bind(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct drm_device *drm; - struct drm_crtc *crtc; struct vc4_dev *vc4; struct device_node *node; int ret = 0; @@ -292,11 +291,9 @@ static int vc4_drm_bind(struct device *dev) if (ret) goto gem_destroy;

- drm_for_each_crtc(crtc, drm) { - ret = vc4_plane_create_additional_planes(drm, crtc); - if (ret) - continue; - } + ret = vc4_plane_create_additional_planes(drm); + if (ret) + goto unbind_all;

drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index cc73c06e019d..07318badf82c 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -848,8 +848,7 @@ int vc4_kms_load(struct drm_device *dev); /* vc4_plane.c */ struct drm_plane *vc4_plane_init(struct drm_device *dev, enum drm_plane_type type); -int vc4_plane_create_additional_planes(struct drm_device *dev, - struct drm_crtc *crtc); +int vc4_plane_create_additional_planes(struct drm_device *dev); u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist); u32 vc4_plane_dlist_size(const struct drm_plane_state *state); void vc4_plane_async_set_fb(struct drm_plane *plane, diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index e4dab514efef..1dcb2ccd65bb 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -1372,39 +1372,41 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev, return plane; }

-int vc4_plane_create_additional_planes(struct drm_device *drm, - struct drm_crtc *crtc) +int vc4_plane_create_additional_planes(struct drm_device *drm) { struct drm_plane *cursor_plane; + struct drm_crtc *crtc; unsigned int i;

- /* Set up some arbitrary number of planes. We're not limited - * by a set number of physical registers, just the space in - * the HVS (16k) and how small an plane can be (28 bytes). - * However, each plane we set up takes up some memory, and - * increases the cost of looping over planes, which atomic - * modesetting does quite a bit. As a result, we pick a - * modest number of planes to expose, that should hopefully - * still cover any sane usecase. - */ - for (i = 0; i < 8; i++) { - struct drm_plane *plane = - vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY); + drm_for_each_crtc(crtc, drm) { + /* Set up some arbitrary number of planes. We're not limited + * by a set number of physical registers, just the space in + * the HVS (16k) and how small an plane can be (28 bytes). + * However, each plane we set up takes up some memory, and + * increases the cost of looping over planes, which atomic + * modesetting does quite a bit. As a result, we pick a + * modest number of planes to expose, that should hopefully + * still cover any sane usecase. + */ + for (i = 0; i < 8; i++) { + struct drm_plane *plane = + vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY);

- if (IS_ERR(plane)) - continue; + if (IS_ERR(plane)) + continue;

- plane->possible_crtcs = drm_crtc_mask(crtc); - } + plane->possible_crtcs = drm_crtc_mask(crtc); + }

- /* Set up the legacy cursor after overlay initialization, - * since we overlay planes on the CRTC in the order they were - * initialized. - */ - cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); - if (!IS_ERR(cursor_plane)) { - cursor_plane->possible_crtcs = drm_crtc_mask(crtc); - crtc->cursor = cursor_plane; + /* Set up the legacy cursor after overlay initialization, + * since we overlay planes on the CRTC in the order they were + * initialized. + */ + cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR); + if (!IS_ERR(cursor_plane)) { + cursor_plane->possible_crtcs = drm_crtc_mask(crtc); + crtc->cursor = cursor_plane; + } }

return 0;

Let's now create more planes that can be affected to all the CRTCs.

vc4 has 3 CRTCs, 1 primary and 1 cursor each, and was having 24 (8 planes per CRTC) overlays.

However, vc5 has 5 CRTCs, so keeping the same logic would put us at 50 planes which is well above the 32 planes limit imposed by DRM.

Using 16 seems like a good tradeoff between staying under 32 and yet providing enough planes.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index ea1d848aad14..49278bccdae0 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -1387,7 +1387,7 @@ int vc4_plane_create_additional_planes(struct drm_device *drm) * modest number of planes to expose, that should hopefully * still cover any sane usecase. */ - for (i = 0; i < 8; i++) { + for (i = 0; i < 16; i++) { struct drm_plane *plane = vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY);

We'll need to access the crtc_state from outside of vc4_crtc.c, so let's move it to vc4_drv.h

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 21 --------------------- drivers/gpu/drm/vc4/vc4_drv.h | 21 +++++++++++++++++++++ 2 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index ce902d31f92c..0f8446e4a397 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -44,27 +44,6 @@ #include "vc4_drv.h" #include "vc4_regs.h"

-struct vc4_crtc_state { - struct drm_crtc_state base; - /* Dlist area for this CRTC configuration. */ - struct drm_mm_node mm; - bool feed_txp; - bool txp_armed; - - struct { - unsigned int left; - unsigned int right; - unsigned int top; - unsigned int bottom; - } margins; -}; - -static inline struct vc4_crtc_state * -to_vc4_crtc_state(struct drm_crtc_state *crtc_state) -{ - return (struct vc4_crtc_state *)crtc_state; -} - #define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset)) #define CRTC_READ(offset) readl(vc4_crtc->regs + (offset))

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 07318badf82c..0aa3a9e64ea0 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -484,6 +484,27 @@ to_vc4_crtc(struct drm_crtc *crtc) return (struct vc4_crtc *)crtc; }

+struct vc4_crtc_state { + struct drm_crtc_state base; + /* Dlist area for this CRTC configuration. */ + struct drm_mm_node mm; + bool feed_txp; + bool txp_armed; + + struct { + unsigned int left; + unsigned int right; + unsigned int top; + unsigned int bottom; + } margins; +}; + +static inline struct vc4_crtc_state * +to_vc4_crtc_state(struct drm_crtc_state *crtc_state) +{ + return (struct vc4_crtc_state *)crtc_state; +} + #define V3D_READ(offset) readl(vc4->v3d->regs + offset) #define V3D_WRITE(offset, val) writel(val, vc4->v3d->regs + offset) #define HVS_READ(offset) readl(vc4->hvs->regs + offset)

Some pixelvalves in vc5 use the same interrupt line so let's register our interrupt handler as a shared one.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 236a14190ebd..4a2ea897eb48 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -1176,7 +1176,9 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) CRTC_WRITE(PV_INTEN, 0); CRTC_WRITE(PV_INTSTAT, PV_INT_VFP_START); ret = devm_request_irq(dev, platform_get_irq(pdev, 0), - vc4_crtc_irq_handler, 0, "vc4 crtc", vc4_crtc); + vc4_crtc_irq_handler, + IRQF_SHARED, + "vc4 crtc", vc4_crtc); if (ret) goto err_destroy_planes;

The COB allocation depends on the HVS channel used for a given pixelvalve.

While the channel allocation was entirely static in vc4, vc5 changes that and at bind time, a pixelvalve can be assigned to multiple HVS channels.

Let's prepare that rework by allocating the COB when it's actually needed.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 39 +++++++++++++++++------------------ drivers/gpu/drm/vc4/vc4_drv.h | 2 +-- 2 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 53ce2bbb10b5..6f797218f0c9 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -65,6 +65,23 @@ static const struct debugfs_reg32 crtc_regs[] = { VC4_REG32(PV_HACT_ACT), };

+static unsigned int +vc4_crtc_get_cob_allocation(struct vc4_crtc *vc4_crtc, unsigned int channel) +{ + struct drm_device *drm = vc4_crtc->base.dev; + struct vc4_dev *vc4 = to_vc4_dev(drm); + + u32 dispbase = HVS_READ(SCALER_DISPBASEX(channel)); + /* Top/base are supposed to be 4-pixel aligned, but the + * Raspberry Pi firmware fills the low bits (which are + * presumably ignored). + */ + u32 top = VC4_GET_FIELD(dispbase, SCALER_DISPBASEX_TOP) & ~3; + u32 base = VC4_GET_FIELD(dispbase, SCALER_DISPBASEX_BASE) & ~3; + + return top - base + 4; +} + bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, bool in_vblank_irq, int *vpos, int *hpos, ktime_t *stime, ktime_t *etime, @@ -73,6 +90,7 @@ bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, struct vc4_dev *vc4 = to_vc4_dev(dev); struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + unsigned int cob_size; u32 val; int fifo_lines; int vblank_lines; @@ -108,8 +126,9 @@ bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, *hpos += mode->crtc_htotal / 2; }

+ cob_size = vc4_crtc_get_cob_allocation(vc4_crtc, vc4_crtc->channel); /* This is the offset we need for translating hvs -> pv scanout pos. */ - fifo_lines = vc4_crtc->cob_size / mode->crtc_hdisplay; + fifo_lines = cob_size / mode->crtc_hdisplay;

if (fifo_lines > 0) ret = true; @@ -1103,22 +1122,6 @@ static void vc4_set_crtc_possible_masks(struct drm_device *drm, } }

-static void -vc4_crtc_get_cob_allocation(struct vc4_crtc *vc4_crtc) -{ - struct drm_device *drm = vc4_crtc->base.dev; - struct vc4_dev *vc4 = to_vc4_dev(drm); - u32 dispbase = HVS_READ(SCALER_DISPBASEX(vc4_crtc->channel)); - /* Top/base are supposed to be 4-pixel aligned, but the - * Raspberry Pi firmware fills the low bits (which are - * presumably ignored). - */ - u32 top = VC4_GET_FIELD(dispbase, SCALER_DISPBASEX_TOP) & ~3; - u32 base = VC4_GET_FIELD(dispbase, SCALER_DISPBASEX_BASE) & ~3; - - vc4_crtc->cob_size = top - base + 4; -} - static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); @@ -1173,8 +1176,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) */ drm_crtc_enable_color_mgmt(crtc, 0, true, crtc->gamma_size);

- vc4_crtc_get_cob_allocation(vc4_crtc); - CRTC_WRITE(PV_INTEN, 0); CRTC_WRITE(PV_INTSTAT, PV_INT_VFP_START); ret = devm_request_irq(dev, platform_get_irq(pdev, 0), diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 0bf14c1dfe39..7457cd50dcee 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -473,8 +473,6 @@ struct vc4_crtc { u8 lut_r[256]; u8 lut_g[256]; u8 lut_b[256]; - /* Size in pixels of the COB memory allocated to this CRTC. */ - u32 cob_size;

struct drm_pending_vblank_event *event;

The vc4_crtc_handle_page_flip already has a local variable holding the value of vc4_crtc->channel, so let's use it instead.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index d03bd7946a84..d3ff32daf60a 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -815,7 +815,7 @@ static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc) * the CRTC and encoder already reconfigured, leading to * underruns. This can be seen when reconfiguring the CRTC. */ - vc4_hvs_unmask_underrun(dev, vc4_crtc->channel); + vc4_hvs_unmask_underrun(dev, chan); } spin_unlock_irqrestore(&dev->event_lock, flags); }

The HVS found in the BCM2711 has 6 outputs and 3 FIFOs, with each output being connected to a pixelvalve, and some muxing between the FIFOs and outputs.

Any output cannot feed from any FIFO though, and they all have a bunch of constraints.

In order to support this, let's store the possible FIFOs each output can be assigned to in the vc4_crtc_data, and use that information at atomic_check time to iterate over all the CRTCs enabled and assign them FIFOs.

The channel assigned is then set in the vc4_crtc_state so that the rest of the driver can use it.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 37 +++++---- drivers/gpu/drm/vc4/vc4_drv.h | 7 +- drivers/gpu/drm/vc4/vc4_kms.c | 143 ++++++++++++++++++++++++++++++++-- drivers/gpu/drm/vc4/vc4_regs.h | 10 ++- 4 files changed, 173 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 25add62080a1..f8e4b2971510 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -90,6 +90,7 @@ bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, struct vc4_dev *vc4 = to_vc4_dev(dev); struct drm_crtc *crtc = drm_crtc_from_index(dev, crtc_id); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + struct vc4_crtc_state *vc4_crtc_state = to_vc4_crtc_state(crtc->state); unsigned int cob_size; u32 val; int fifo_lines; @@ -106,7 +107,7 @@ bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, * Read vertical scanline which is currently composed for our * pixelvalve by the HVS, and also the scaler status. */ - val = HVS_READ(SCALER_DISPSTATX(vc4_crtc->channel)); + val = HVS_READ(SCALER_DISPSTATX(vc4_crtc_state->assigned_channel));

/* Get optional system timestamp after query. */ if (etime) @@ -126,7 +127,7 @@ bool vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, *hpos += mode->crtc_htotal / 2; }

- cob_size = vc4_crtc_get_cob_allocation(vc4_crtc, vc4_crtc->channel); + cob_size = vc4_crtc_get_cob_allocation(vc4_crtc, vc4_crtc_state->assigned_channel); /* This is the offset we need for translating hvs -> pv scanout pos. */ fifo_lines = cob_size / mode->crtc_hdisplay;

@@ -213,6 +214,7 @@ vc4_crtc_lut_load(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + struct vc4_crtc_state *vc4_crtc_state = to_vc4_crtc_state(crtc->state); u32 i;

/* The LUT memory is laid out with each HVS channel in order, @@ -221,7 +223,7 @@ vc4_crtc_lut_load(struct drm_crtc *crtc) */ HVS_WRITE(SCALER_GAMADDR, SCALER_GAMADDR_AUTOINC | - (vc4_crtc->channel * 3 * crtc->gamma_size)); + (vc4_crtc_state->assigned_channel * 3 * crtc->gamma_size));

for (i = 0; i < crtc->gamma_size; i++) HVS_WRITE(SCALER_GAMDATA, vc4_crtc->lut_r[i]); @@ -394,7 +396,7 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc) drm_print_regset32(&p, &vc4_crtc->regset); }

- if (vc4_crtc->channel == 2) { + if (vc4_crtc->data->hvs_output == 2) { u32 dispctrl; u32 dsp3_mux;

@@ -421,7 +423,7 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc) if (!vc4_state->feed_txp) vc4_crtc_config_pv(crtc);

- HVS_WRITE(SCALER_DISPBKGNDX(vc4_crtc->channel), + HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), SCALER_DISPBKGND_AUTOHS | SCALER_DISPBKGND_GAMMA | (interlace ? SCALER_DISPBKGND_INTERLACE : 0)); @@ -453,7 +455,8 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); - u32 chan = vc4_crtc->channel; + struct vc4_crtc_state *vc4_crtc_state = to_vc4_crtc_state(old_state); + u32 chan = vc4_crtc_state->assigned_channel; int ret; require_hvs_enabled(dev);

@@ -532,12 +535,12 @@ static void vc4_crtc_update_dlist(struct drm_crtc *crtc) crtc->state->event = NULL; }

- HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel), + HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel), vc4_state->mm.start);

spin_unlock_irqrestore(&dev->event_lock, flags); } else { - HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel), + HVS_WRITE(SCALER_DISPLISTX(vc4_state->assigned_channel), vc4_state->mm.start); } } @@ -586,7 +589,7 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc, (vc4_state->feed_txp ? SCALER5_DISPCTRLX_ONESHOT : 0);

- HVS_WRITE(SCALER_DISPCTRLX(vc4_crtc->channel), dispctrl); + HVS_WRITE(SCALER_DISPCTRLX(vc4_state->assigned_channel), dispctrl);

/* When feeding the transposer block the pixelvalve is unneeded and * should not be enabled. @@ -702,7 +705,6 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, { struct drm_device *dev = crtc->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state); struct drm_plane *plane; struct vc4_plane_state *vc4_plane_state; @@ -744,8 +746,8 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, /* This sets a black background color fill, as is the case * with other DRM drivers. */ - HVS_WRITE(SCALER_DISPBKGNDX(vc4_crtc->channel), - HVS_READ(SCALER_DISPBKGNDX(vc4_crtc->channel)) | + HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), + HVS_READ(SCALER_DISPBKGNDX(vc4_state->assigned_channel)) | SCALER_DISPBKGND_FILL);

/* Only update DISPLIST if the CRTC was already running and is not @@ -759,7 +761,7 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, vc4_crtc_update_dlist(crtc);

if (crtc->state->color_mgmt_changed) { - u32 dispbkgndx = HVS_READ(SCALER_DISPBKGNDX(vc4_crtc->channel)); + u32 dispbkgndx = HVS_READ(SCALER_DISPBKGNDX(vc4_state->assigned_channel));

if (crtc->state->gamma_lut) { vc4_crtc_update_gamma_lut(crtc); @@ -771,7 +773,7 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc, */ dispbkgndx &= ~SCALER_DISPBKGND_GAMMA; } - HVS_WRITE(SCALER_DISPBKGNDX(vc4_crtc->channel), dispbkgndx); + HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), dispbkgndx); }

if (debug_dump_regs) { @@ -802,7 +804,7 @@ static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc) struct drm_device *dev = crtc->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state); - u32 chan = vc4_crtc->channel; + u32 chan = vc4_state->assigned_channel; unsigned long flags;

spin_lock_irqsave(&dev->event_lock, flags); @@ -1001,6 +1003,7 @@ static struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc) old_vc4_state = to_vc4_crtc_state(crtc->state); vc4_state->feed_txp = old_vc4_state->feed_txp; vc4_state->margins = old_vc4_state->margins; + vc4_state->assigned_channel = old_vc4_state->assigned_channel;

__drm_atomic_helper_crtc_duplicate_state(crtc, &vc4_state->base); return &vc4_state->base; @@ -1060,6 +1063,7 @@ static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = { };

static const struct vc4_crtc_data bcm2835_pv0_data = { + .hvs_available_channels = BIT(0), .hvs_output = 0, .debugfs_name = "crtc0_regs", .pixels_per_clock = 1, @@ -1070,6 +1074,7 @@ static const struct vc4_crtc_data bcm2835_pv0_data = { };

static const struct vc4_crtc_data bcm2835_pv1_data = { + .hvs_available_channels = BIT(2), .hvs_output = 2, .debugfs_name = "crtc1_regs", .pixels_per_clock = 1, @@ -1080,6 +1085,7 @@ static const struct vc4_crtc_data bcm2835_pv1_data = { };

static const struct vc4_crtc_data bcm2835_pv2_data = { + .hvs_available_channels = BIT(1), .hvs_output = 1, .debugfs_name = "crtc2_regs", .pixels_per_clock = 1, @@ -1171,7 +1177,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, &vc4_crtc_funcs, NULL); drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs); - vc4_crtc->channel = vc4_crtc->data->hvs_output; drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r)); drm_crtc_enable_color_mgmt(crtc, 0, false, crtc->gamma_size);

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index e1cb7a16f475..f31a6593da8a 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -448,6 +448,9 @@ to_vc4_encoder(struct drm_encoder *encoder) }

struct vc4_crtc_data { + /* Which channels of the HVS can the output source from */ + unsigned int hvs_available_channels; + /* Which output of the HVS this pixelvalve sources from. */ int hvs_output;

@@ -467,9 +470,6 @@ struct vc4_crtc { /* Timestamp at start of vblank irq - unaffected by lock delays. */ ktime_t t_vblank;

- /* Which HVS channel we're using for our CRTC. */ - int channel; - u8 lut_r[256]; u8 lut_g[256]; u8 lut_b[256]; @@ -491,6 +491,7 @@ struct vc4_crtc_state { struct drm_mm_node mm; bool feed_txp; bool txp_armed; + unsigned int assigned_channel;

struct { unsigned int left; diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index 71e7211a5fb9..bdcd851450da 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -11,6 +11,9 @@ * crtc, HDMI encoder). */

+#include <linux/bitfield.h> +#include <linux/bitops.h> + #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc.h> @@ -144,6 +147,72 @@ vc4_ctm_commit(struct vc4_dev *vc4, struct drm_atomic_state *state) VC4_SET_FIELD(ctm_state->fifo, SCALER_OLEDOFFS_DISPFIFO)); }

+static void vc4_hvs_pv_muxing_commit(struct vc4_dev *vc4, + struct drm_atomic_state *state) +{ + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + unsigned char dsp2_mux = 0; + unsigned char dsp3_mux = 3; + unsigned char dsp4_mux = 3; + unsigned char dsp5_mux = 3; + unsigned int i; + u32 reg; + + for_each_new_crtc_in_state(state, crtc, crtc_state, i) { + struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state); + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + + if (!crtc_state->active) + continue; + + switch (vc4_crtc->data->hvs_output) { + case 2: + dsp2_mux = (vc4_state->assigned_channel == 2) ? 1 : 0; + break; + + case 3: + dsp3_mux = vc4_state->assigned_channel; + break; + + case 4: + dsp4_mux = vc4_state->assigned_channel; + break; + + case 5: + dsp5_mux = vc4_state->assigned_channel; + break; + + default: + break; + } + } + + reg = HVS_READ(SCALER_DISPECTRL); + if (FIELD_GET(SCALER_DISPECTRL_DSP2_MUX_MASK, reg) != dsp2_mux) + HVS_WRITE(SCALER_DISPECTRL, + (reg & ~SCALER_DISPECTRL_DSP2_MUX_MASK) | + VC4_SET_FIELD(dsp2_mux, SCALER_DISPECTRL_DSP2_MUX)); + + reg = HVS_READ(SCALER_DISPCTRL); + if (FIELD_GET(SCALER_DISPCTRL_DSP3_MUX_MASK, reg) != dsp3_mux) + HVS_WRITE(SCALER_DISPCTRL, + (reg & ~SCALER_DISPCTRL_DSP3_MUX_MASK) | + VC4_SET_FIELD(dsp3_mux, SCALER_DISPCTRL_DSP3_MUX)); + + reg = HVS_READ(SCALER_DISPEOLN); + if (FIELD_GET(SCALER_DISPEOLN_DSP4_MUX_MASK, reg) != dsp4_mux) + HVS_WRITE(SCALER_DISPEOLN, + (reg & ~SCALER_DISPEOLN_DSP4_MUX_MASK) | + VC4_SET_FIELD(dsp4_mux, SCALER_DISPEOLN_DSP4_MUX)); + + reg = HVS_READ(SCALER_DISPDITHER); + if (FIELD_GET(SCALER_DISPDITHER_DSP5_MUX_MASK, reg) != dsp5_mux) + HVS_WRITE(SCALER_DISPDITHER, + (reg & ~SCALER_DISPDITHER_DSP5_MUX_MASK) | + VC4_SET_FIELD(dsp5_mux, SCALER_DISPDITHER_DSP5_MUX)); +} + static void vc4_atomic_complete_commit(struct drm_atomic_state *state) { @@ -153,11 +222,15 @@ vc4_atomic_complete_commit(struct drm_atomic_state *state) int i;

for (i = 0; i < dev->mode_config.num_crtc; i++) { - if (!state->crtcs[i].ptr || !state->crtcs[i].commit) + struct __drm_crtcs_state *_state = &state->crtcs[i]; + struct vc4_crtc_state *vc4_crtc_state; + + if (!_state->ptr || !_state->commit) continue;

- vc4_crtc = to_vc4_crtc(state->crtcs[i].ptr); - vc4_hvs_mask_underrun(dev, vc4_crtc->channel); + vc4_crtc = to_vc4_crtc(_state->ptr); + vc4_crtc_state = to_vc4_crtc_state(_state->state); + vc4_hvs_mask_underrun(dev, vc4_crtc_state->assigned_channel); }

drm_atomic_helper_wait_for_fences(dev, state, false); @@ -167,6 +240,7 @@ vc4_atomic_complete_commit(struct drm_atomic_state *state) drm_atomic_helper_commit_modeset_disables(dev, state);

vc4_ctm_commit(vc4, state); + vc4_hvs_pv_muxing_commit(vc4, state);

drm_atomic_helper_commit_planes(dev, state, 0);

@@ -374,8 +448,11 @@ vc4_ctm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)

/* CTM is being enabled or the matrix changed. */ if (new_crtc_state->ctm) { + struct vc4_crtc_state *vc4_crtc_state = + to_vc4_crtc_state(new_crtc_state); + /* fifo is 1-based since 0 disables CTM. */ - int fifo = to_vc4_crtc(crtc)->channel + 1; + int fifo = vc4_crtc_state->assigned_channel + 1;

/* Check userland isn't trying to turn on CTM for more * than one CRTC at a time. @@ -488,10 +565,66 @@ static const struct drm_private_state_funcs vc4_load_tracker_state_funcs = { .atomic_destroy_state = vc4_load_tracker_destroy_state, };

+#define NUM_OUTPUTS 6 +#define NUM_CHANNELS 3 + static int vc4_atomic_check(struct drm_device *dev, struct drm_atomic_state *state) { - int ret; + unsigned long unassigned_channels = GENMASK(NUM_CHANNELS - 1, 0); + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + int i, ret; + + for_each_new_crtc_in_state(state, crtc, crtc_state, i) { + struct vc4_crtc_state *vc4_crtc_state = + to_vc4_crtc_state(crtc_state); + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + bool is_assigned = false; + unsigned int channel; + + if (!crtc_state->active) + continue; + + /* + * The problem we have to solve here is that we have + * up to 7 encoders, connected to up to 6 CRTCs. + * + * Those CRTCs, depending on the instance, can be + * routed to 1, 2 or 3 HVS FIFOs, and we need to set + * the change the muxing between FIFOs and outputs in + * the HVS accordingly. + * + * It would be pretty hard to come up with an + * algorithm that would generically solve + * this. However, the current routing trees we support + * allow us to simplify a bit the problem. + * + * Indeed, with the current supported layouts, if we + * try to assign in the ascending crtc index order the + * FIFOs, we can't fall into the situation where an + * earlier CRTC that had multiple routes is assigned + * one that was the only option for a later CRTC. + * + * If the layout changes and doesn't give us that in + * the future, we will need to have something smarter, + * but it works so far. + */ + for_each_set_bit(channel, &unassigned_channels, + sizeof(unassigned_channels)) { + + if (!(BIT(channel) & vc4_crtc->data->hvs_available_channels)) + continue; + + vc4_crtc_state->assigned_channel = channel; + unassigned_channels &= ~BIT(channel); + is_assigned = true; + break; + } + + if (!is_assigned) + return -EINVAL; + }

ret = vc4_ctm_atomic_check(dev, state); if (ret < 0) diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index 8a51baf681fe..b96ebbb1354b 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -287,9 +287,19 @@

#define SCALER_DISPID 0x00000008 #define SCALER_DISPECTRL 0x0000000c +# define SCALER_DISPECTRL_DSP2_MUX_SHIFT 31 +# define SCALER_DISPECTRL_DSP2_MUX_MASK VC4_MASK(31, 31) + #define SCALER_DISPPROF 0x00000010 + #define SCALER_DISPDITHER 0x00000014 +# define SCALER_DISPDITHER_DSP5_MUX_SHIFT 30 +# define SCALER_DISPDITHER_DSP5_MUX_MASK VC4_MASK(31, 30) + #define SCALER_DISPEOLN 0x00000018 +# define SCALER_DISPEOLN_DSP4_MUX_SHIFT 30 +# define SCALER_DISPEOLN_DSP4_MUX_MASK VC4_MASK(31, 30) + #define SCALER_DISPLIST0 0x00000020 #define SCALER_DISPLIST1 0x00000024 #define SCALER_DISPLIST2 0x00000028

The longer FIFOs in vc5 pixelvalves means that the FIFO full level doesn't fit in the original register field and that we also have a secondary field. In order to prepare for this, let's move the registers fill part to a helper function.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 129131a07edd..1dd0a9fb1c02 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -277,6 +277,14 @@ static u32 vc4_get_fifo_full_level(struct vc4_crtc *vc4_crtc, u32 format) } }

+static u32 vc4_crtc_get_fifo_full_level_bits(struct vc4_crtc *vc4_crtc, + u32 format) +{ + u32 level = vc4_get_fifo_full_level(vc4_crtc, format); + return VC4_SET_FIELD(level & 0x3f, + PV_CONTROL_FIFO_LEVEL); +} + /* * Returns the encoder attached to the CRTC. * @@ -377,9 +385,8 @@ static void vc4_crtc_config_pv(struct drm_crtc *crtc) CRTC_WRITE(PV_HACT_ACT, mode->hdisplay * pixel_rep);

CRTC_WRITE(PV_CONTROL, + vc4_crtc_get_fifo_full_level_bits(vc4_crtc, format) | VC4_SET_FIELD(format, PV_CONTROL_FORMAT) | - VC4_SET_FIELD(vc4_get_fifo_full_level(vc4_crtc, format), - PV_CONTROL_FIFO_LEVEL) | VC4_SET_FIELD(pixel_rep - 1, PV_CONTROL_PIXEL_REP) | PV_CONTROL_CLR_AT_START | PV_CONTROL_TRIGGER_UNDERFLOW |

The BCM2711 sports a second HDMI controller, so let's add that second HDMI encoder type.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_drv.h | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index c262c7a388a4..1e44a3a8c2b0 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -428,6 +428,7 @@ to_vc4_plane_state(struct drm_plane_state *state) enum vc4_encoder_type { VC4_ENCODER_TYPE_NONE, VC4_ENCODER_TYPE_HDMI0, + VC4_ENCODER_TYPE_HDMI1, VC4_ENCODER_TYPE_VEC, VC4_ENCODER_TYPE_DSI0, VC4_ENCODER_TYPE_DSI1,

The HVS5 uses different color matrices. Disable color management support for now.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_crtc.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 67d9beb2cff0..b10b267f56fe 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -441,7 +441,7 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)

HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), SCALER_DISPBKGND_AUTOHS | - SCALER_DISPBKGND_GAMMA | + ((!vc4->hvs->hvs5) ? SCALER_DISPBKGND_GAMMA : 0) | (interlace ? SCALER_DISPBKGND_INTERLACE : 0));

/* Reload the LUT, since the SRAMs would have been disabled if @@ -1155,6 +1155,7 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); struct drm_device *drm = dev_get_drvdata(master); + struct vc4_dev *vc4 = to_vc4_dev(drm); struct vc4_crtc *vc4_crtc; struct drm_crtc *crtc; struct drm_plane *primary_plane, *destroy_plane, *temp; @@ -1196,12 +1197,16 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data) drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, &vc4_crtc_funcs, NULL); drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs); - drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r));

- /* We support CTM, but only for one CRTC at a time. It's therefore - * implemented as private driver state in vc4_kms, not here. - */ - drm_crtc_enable_color_mgmt(crtc, 0, true, crtc->gamma_size); + if (!vc4->hvs->hvs5) { + drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r)); + + /* We support CTM, but only for one CRTC at a + * time. It's therefore implemented as private driver + * state in vc4_kms, not here. + */ + drm_crtc_enable_color_mgmt(crtc, 0, true, crtc->gamma_size); + }

CRTC_WRITE(PV_INTEN, 0); CRTC_WRITE(PV_INTSTAT, PV_INT_VFP_START);

We're calling vc4_debugfs_add_file with our struct vc4_hdmi pointer set in the private field, but we don't use that field and go through the main struct vc4_dev to get it.

Let's use the private field directly, that will save us some trouble later on.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 0c3cfa552239..7fad602217c1 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -182,9 +182,7 @@ static const struct debugfs_reg32 hd_regs[] = { static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) { struct drm_info_node *node = (struct drm_info_node *)m->private; - struct drm_device *dev = node->minor->dev; - struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *hdmi = node->info_ent->data; struct drm_printer p = drm_seq_file_printer(m);

drm_print_regset32(&p, &hdmi->hdmi_regset);

the vc4_hdmi driver has some custom structures to hold the data it needs to associate with the drm_encoder and drm_connector structures.

However, it allocates them separately from the vc4_hdmi structure which makes it more complicated than it needs to be.

Move those structures to be contained by vc4_hdmi and update the code accordingly.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 85 ++++++++++++++++------------------- drivers/gpu/drm/vc4/vc4_hdmi.h | 64 +++++++++++++------------- 2 files changed, 71 insertions(+), 78 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index a31fdf1dc6cf..5db003bb3cf5 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -190,20 +190,15 @@ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = .get_modes = vc4_hdmi_connector_get_modes, };

-static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev, - struct drm_encoder *encoder, - struct i2c_adapter *ddc) +static int vc4_hdmi_connector_init(struct drm_device *dev, + struct vc4_hdmi *vc4_hdmi, + struct i2c_adapter *ddc) { - struct drm_connector *connector; - struct vc4_hdmi_connector *hdmi_connector; + struct vc4_hdmi_connector *hdmi_connector = &vc4_hdmi->connector; + struct drm_connector *connector = &hdmi_connector->base; + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; int ret;

- hdmi_connector = devm_kzalloc(dev->dev, sizeof(*hdmi_connector), - GFP_KERNEL); - if (!hdmi_connector) - return ERR_PTR(-ENOMEM); - connector = &hdmi_connector->base; - hdmi_connector->encoder = encoder;

drm_connector_init_with_ddc(dev, connector, @@ -215,7 +210,7 @@ static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev, /* Create and attach TV margin props to this connector. */ ret = drm_mode_create_tv_margin_properties(dev); if (ret) - return ERR_PTR(ret); + return ret;

drm_connector_attach_tv_margin_properties(connector);

@@ -227,7 +222,7 @@ static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev,

drm_connector_attach_encoder(connector, encoder);

- return connector; + return 0; }

static void vc4_hdmi_encoder_destroy(struct drm_encoder *encoder) @@ -306,21 +301,22 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder) struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder); struct vc4_dev *vc4 = encoder->dev->dev_private; struct vc4_hdmi *hdmi = vc4->hdmi; - struct drm_connector_state *cstate = hdmi->connector->state; + struct drm_connector *connector = &hdmi->connector.base; + struct drm_connector_state *cstate = connector->state; struct drm_crtc *crtc = encoder->crtc; const struct drm_display_mode *mode = &crtc->state->adjusted_mode; union hdmi_infoframe frame; int ret;

ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, - hdmi->connector, mode); + connector, mode); if (ret < 0) { DRM_ERROR("couldn't fill AVI infoframe\n"); return; }

drm_hdmi_avi_infoframe_quant_range(&frame.avi, - hdmi->connector, mode, + connector, mode, vc4_encoder->limited_rgb_range ? HDMI_QUANTIZATION_RANGE_LIMITED : HDMI_QUANTIZATION_RANGE_FULL); @@ -624,7 +620,8 @@ static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = { /* HDMI audio codec callbacks */ static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *hdmi) { - struct drm_device *drm = hdmi->encoder->dev; + struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); u32 hsm_clock = clk_get_rate(hdmi->hsm_clock); unsigned long n, m; @@ -643,7 +640,7 @@ static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *hdmi)

static void vc4_hdmi_set_n_cts(struct vc4_hdmi *hdmi) { - struct drm_encoder *encoder = hdmi->encoder; + struct drm_encoder *encoder = &hdmi->encoder.base.base; struct drm_crtc *crtc = encoder->crtc; struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); @@ -681,7 +678,8 @@ static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = hdmi->encoder; + struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct drm_connector *connector = &hdmi->connector.base; struct vc4_dev *vc4 = to_vc4_dev(encoder->dev); int ret;

@@ -698,8 +696,7 @@ static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream, VC4_HDMI_RAM_PACKET_ENABLE)) return -ENODEV;

- ret = snd_pcm_hw_constraint_eld(substream->runtime, - hdmi->connector->eld); + ret = snd_pcm_hw_constraint_eld(substream->runtime, connector->eld); if (ret) return ret;

@@ -713,7 +710,7 @@ static int vc4_hdmi_audio_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)

static void vc4_hdmi_audio_reset(struct vc4_hdmi *hdmi) { - struct drm_encoder *encoder = hdmi->encoder; + struct drm_encoder *encoder = &hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; struct device *dev = &hdmi->pdev->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); @@ -747,7 +744,7 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = hdmi->encoder; + struct drm_encoder *encoder = &hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; struct device *dev = &hdmi->pdev->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); @@ -820,7 +817,7 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = hdmi->encoder; + struct drm_encoder *encoder = &hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm);

@@ -864,9 +861,10 @@ static int vc4_hdmi_audio_eld_ctl_info(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct vc4_hdmi *hdmi = snd_component_to_hdmi(component); + struct drm_connector *connector = &hdmi->connector.base;

uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; - uinfo->count = sizeof(hdmi->connector->eld); + uinfo->count = sizeof(connector->eld);

return 0; } @@ -876,9 +874,10 @@ static int vc4_hdmi_audio_eld_ctl_get(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct vc4_hdmi *hdmi = snd_component_to_hdmi(component); + struct drm_connector *connector = &hdmi->connector.base;

- memcpy(ucontrol->value.bytes.data, hdmi->connector->eld, - sizeof(hdmi->connector->eld)); + memcpy(ucontrol->value.bytes.data, connector->eld, + sizeof(connector->eld));

return 0; } @@ -1216,7 +1215,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) struct drm_device *drm = dev_get_drvdata(master); struct vc4_dev *vc4 = drm->dev_private; struct vc4_hdmi *hdmi; - struct vc4_hdmi_encoder *vc4_hdmi_encoder; + struct drm_encoder *encoder; struct device_node *ddc_node; u32 value; int ret; @@ -1225,14 +1224,10 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) if (!hdmi) return -ENOMEM;

- vc4_hdmi_encoder = devm_kzalloc(dev, sizeof(*vc4_hdmi_encoder), - GFP_KERNEL); - if (!vc4_hdmi_encoder) - return -ENOMEM; - vc4_hdmi_encoder->base.type = VC4_ENCODER_TYPE_HDMI0; - hdmi->encoder = &vc4_hdmi_encoder->base.base; - hdmi->pdev = pdev; + encoder = &hdmi->encoder.base.base; + encoder->base.type = VC4_ENCODER_TYPE_HDMI0; + hdmi->hdmicore_regs = vc4_ioremap_regs(pdev, 0); if (IS_ERR(hdmi->hdmicore_regs)) return PTR_ERR(hdmi->hdmicore_regs); @@ -1318,16 +1313,14 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) } pm_runtime_enable(dev);

- drm_encoder_init(drm, hdmi->encoder, &vc4_hdmi_encoder_funcs, + drm_encoder_init(drm, encoder, &vc4_hdmi_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL); - drm_encoder_helper_add(hdmi->encoder, &vc4_hdmi_encoder_helper_funcs); + drm_encoder_helper_add(encoder, &vc4_hdmi_encoder_helper_funcs);

- hdmi->connector = - vc4_hdmi_connector_init(drm, hdmi->encoder, hdmi->ddc); - if (IS_ERR(hdmi->connector)) { - ret = PTR_ERR(hdmi->connector); + ret = vc4_hdmi_connector_init(drm, vc4_hdmi, vc4_hdmi->ddc); + if (ret) goto err_destroy_encoder; - } + #ifdef CONFIG_DRM_VC4_HDMI_CEC hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops, vc4, "vc4", @@ -1374,10 +1367,10 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) err_delete_cec_adap: cec_delete_adapter(hdmi->cec_adap); err_destroy_conn: - vc4_hdmi_connector_destroy(hdmi->connector); + vc4_hdmi_connector_destroy(&hdmi->connector.base); #endif err_destroy_encoder: - vc4_hdmi_encoder_destroy(hdmi->encoder); + vc4_hdmi_encoder_destroy(encoder); err_unprepare_hsm: clk_disable_unprepare(hdmi->hsm_clock); pm_runtime_disable(dev); @@ -1395,8 +1388,8 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master, struct vc4_hdmi *hdmi = vc4->hdmi;

cec_unregister_adapter(hdmi->cec_adap); - vc4_hdmi_connector_destroy(hdmi->connector); - vc4_hdmi_encoder_destroy(hdmi->encoder); + vc4_hdmi_connector_destroy(&hdmi->connector.base); + vc4_hdmi_encoder_destroy(&hdmi->encoder.base.base);

clk_disable_unprepare(hdmi->hsm_clock); pm_runtime_disable(dev); diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 5ec5d1f6b1e6..17079a39f1b1 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -8,6 +8,36 @@

#include "vc4_drv.h"

+/* VC4 HDMI encoder KMS struct */ +struct vc4_hdmi_encoder { + struct vc4_encoder base; + bool hdmi_monitor; + bool limited_rgb_range; +}; + +static inline struct vc4_hdmi_encoder * +to_vc4_hdmi_encoder(struct drm_encoder *encoder) +{ + return container_of(encoder, struct vc4_hdmi_encoder, base.base); +} + +/* VC4 HDMI connector KMS struct */ +struct vc4_hdmi_connector { + struct drm_connector base; + + /* Since the connector is attached to just the one encoder, + * this is the reference to it so we can do the best_encoder() + * hook. + */ + struct drm_encoder *encoder; +}; + +static inline struct vc4_hdmi_connector * +to_vc4_hdmi_connector(struct drm_connector *connector) +{ + return container_of(connector, struct vc4_hdmi_connector, base); +} + /* HDMI audio information */ struct vc4_hdmi_audio { struct snd_soc_card card; @@ -25,8 +55,8 @@ struct vc4_hdmi_audio { struct vc4_hdmi { struct platform_device *pdev;

- struct drm_encoder *encoder; - struct drm_connector *connector; + struct vc4_hdmi_encoder encoder; + struct vc4_hdmi_connector connector;

struct vc4_hdmi_audio audio;

@@ -53,34 +83,4 @@ struct vc4_hdmi { #define HD_READ(offset) readl(vc4->hdmi->hd_regs + offset) #define HD_WRITE(offset, val) writel(val, vc4->hdmi->hd_regs + offset)

-/* VC4 HDMI encoder KMS struct */ -struct vc4_hdmi_encoder { - struct vc4_encoder base; - bool hdmi_monitor; - bool limited_rgb_range; -}; - -static inline struct vc4_hdmi_encoder * -to_vc4_hdmi_encoder(struct drm_encoder *encoder) -{ - return container_of(encoder, struct vc4_hdmi_encoder, base.base); -} - -/* VC4 HDMI connector KMS struct */ -struct vc4_hdmi_connector { - struct drm_connector base; - - /* Since the connector is attached to just the one encoder, - * this is the reference to it so we can do the best_encoder() - * hook. - */ - struct drm_encoder *encoder; -}; - -static inline struct vc4_hdmi_connector * -to_vc4_hdmi_connector(struct drm_connector *connector) -{ - return container_of(connector, struct vc4_hdmi_connector, base); -} - #endif /* _VC4_HDMI_H_ */

The driver isn't consistent with the name given to the vc4_hdmi structure pointer in its functions. Make sure to use a consistent name.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 265 +++++++++++++++++----------------- 1 file changed, 133 insertions(+), 132 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 4964ec6f5608..a08c25e0c056 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -108,11 +108,11 @@ static const struct debugfs_reg32 hd_regs[] = { static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) { struct drm_info_node *node = (struct drm_info_node *)m->private; - struct vc4_hdmi *hdmi = node->info_ent->data; + struct vc4_hdmi *vc4_hdmi = node->info_ent->data; struct drm_printer p = drm_seq_file_printer(m);

- drm_print_regset32(&p, &hdmi->hdmi_regset); - drm_print_regset32(&p, &hdmi->hd_regset); + drm_print_regset32(&p, &vc4_hdmi->hdmi_regset); + drm_print_regset32(&p, &vc4_hdmi->hd_regset);

return 0; } @@ -299,8 +299,8 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder) { struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder); struct vc4_dev *vc4 = encoder->dev->dev_private; - struct vc4_hdmi *hdmi = vc4->hdmi; - struct drm_connector *connector = &hdmi->connector.base; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; + struct drm_connector *connector = &vc4_hdmi->connector.base; struct drm_connector_state *cstate = connector->state; struct drm_crtc *crtc = encoder->crtc; const struct drm_display_mode *mode = &crtc->state->adjusted_mode; @@ -345,7 +345,7 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder) { struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = drm->dev_private; - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; union hdmi_infoframe frame; int ret;

@@ -354,7 +354,7 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder) frame.audio.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; frame.audio.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; frame.audio.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; - frame.audio.channels = hdmi->audio.channels; + frame.audio.channels = vc4_hdmi->audio.channels;

vc4_hdmi_write_infoframe(encoder, &frame); } @@ -369,7 +369,7 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; int ret;

HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, 0); @@ -378,9 +378,9 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) HD_WRITE(VC4_HD_VID_CTL, HD_READ(VC4_HD_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);

- clk_disable_unprepare(hdmi->pixel_clock); + clk_disable_unprepare(vc4_hdmi->pixel_clock);

- ret = pm_runtime_put(&hdmi->pdev->dev); + ret = pm_runtime_put(&vc4_hdmi->pdev->dev); if (ret < 0) DRM_ERROR("Failed to release power domain: %d\n", ret); } @@ -391,7 +391,7 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder); struct drm_device *dev = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; bool debug_dump_regs = false; bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC; bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC; @@ -413,13 +413,13 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) u32 csc_ctl; int ret;

- ret = pm_runtime_get_sync(&hdmi->pdev->dev); + ret = pm_runtime_get_sync(&vc4_hdmi->pdev->dev); if (ret < 0) { DRM_ERROR("Failed to retain power domain: %d\n", ret); return; }

- ret = clk_set_rate(hdmi->pixel_clock, + ret = clk_set_rate(vc4_hdmi->pixel_clock, mode->clock * 1000 * ((mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1)); if (ret) { @@ -427,7 +427,7 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) return; }

- ret = clk_prepare_enable(hdmi->pixel_clock); + ret = clk_prepare_enable(vc4_hdmi->pixel_clock); if (ret) { DRM_ERROR("Failed to turn on pixel clock: %d\n", ret); return; @@ -447,11 +447,11 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) HDMI_WRITE(VC4_HDMI_TX_PHY_RESET_CTL, 0);

if (debug_dump_regs) { - struct drm_printer p = drm_info_printer(&hdmi->pdev->dev); + struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev);

- dev_info(&hdmi->pdev->dev, "HDMI regs before:\n"); - drm_print_regset32(&p, &hdmi->hdmi_regset); - drm_print_regset32(&p, &hdmi->hd_regset); + dev_info(&vc4_hdmi->pdev->dev, "HDMI regs before:\n"); + drm_print_regset32(&p, &vc4_hdmi->hdmi_regset); + drm_print_regset32(&p, &vc4_hdmi->hd_regset); }

HD_WRITE(VC4_HD_VID_CTL, 0); @@ -526,11 +526,11 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) HDMI_WRITE(VC4_HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N);

if (debug_dump_regs) { - struct drm_printer p = drm_info_printer(&hdmi->pdev->dev); + struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev);

- dev_info(&hdmi->pdev->dev, "HDMI regs after:\n"); - drm_print_regset32(&p, &hdmi->hdmi_regset); - drm_print_regset32(&p, &hdmi->hd_regset); + dev_info(&vc4_hdmi->pdev->dev, "HDMI regs after:\n"); + drm_print_regset32(&p, &vc4_hdmi->hdmi_regset); + drm_print_regset32(&p, &vc4_hdmi->hd_regset); }

HD_WRITE(VC4_HD_VID_CTL, @@ -617,15 +617,15 @@ static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = { };

/* HDMI audio codec callbacks */ -static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *hdmi) +static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *vc4_hdmi) { - struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); - u32 hsm_clock = clk_get_rate(hdmi->hsm_clock); + u32 hsm_clock = clk_get_rate(vc4_hdmi->hsm_clock); unsigned long n, m;

- rational_best_approximation(hsm_clock, hdmi->audio.samplerate, + rational_best_approximation(hsm_clock, vc4_hdmi->audio.samplerate, VC4_HD_MAI_SMP_N_MASK >> VC4_HD_MAI_SMP_N_SHIFT, (VC4_HD_MAI_SMP_M_MASK >> @@ -637,14 +637,14 @@ static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *hdmi) VC4_SET_FIELD(m - 1, VC4_HD_MAI_SMP_M)); }

-static void vc4_hdmi_set_n_cts(struct vc4_hdmi *hdmi) +static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi) { - struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; struct drm_crtc *crtc = encoder->crtc; struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); const struct drm_display_mode *mode = &crtc->state->adjusted_mode; - u32 samplerate = hdmi->audio.samplerate; + u32 samplerate = vc4_hdmi->audio.samplerate; u32 n, cts; u64 tmp;

@@ -676,16 +676,16 @@ static inline struct vc4_hdmi *dai_to_hdmi(struct snd_soc_dai *dai) static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = &hdmi->encoder.base.base; - struct drm_connector *connector = &hdmi->connector.base; + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai); + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; + struct drm_connector *connector = &vc4_hdmi->connector.base; struct vc4_dev *vc4 = to_vc4_dev(encoder->dev); int ret;

- if (hdmi->audio.substream && hdmi->audio.substream != substream) + if (vc4_hdmi->audio.substream && vc4_hdmi->audio.substream != substream) return -EINVAL;

- hdmi->audio.substream = substream; + vc4_hdmi->audio.substream = substream;

/* * If the HDMI encoder hasn't probed, or the encoder is @@ -707,11 +707,11 @@ static int vc4_hdmi_audio_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return 0; }

-static void vc4_hdmi_audio_reset(struct vc4_hdmi *hdmi) +static void vc4_hdmi_audio_reset(struct vc4_hdmi *vc4_hdmi) { - struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; - struct device *dev = &hdmi->pdev->dev; + struct device *dev = &vc4_hdmi->pdev->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); int ret;

@@ -727,14 +727,14 @@ static void vc4_hdmi_audio_reset(struct vc4_hdmi *hdmi) static void vc4_hdmi_audio_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct vc4_hdmi *hdmi = dai_to_hdmi(dai); + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);

- if (substream != hdmi->audio.substream) + if (substream != vc4_hdmi->audio.substream) return;

- vc4_hdmi_audio_reset(hdmi); + vc4_hdmi_audio_reset(vc4_hdmi);

- hdmi->audio.substream = NULL; + vc4_hdmi->audio.substream = NULL; }

/* HDMI audio codec callbacks */ @@ -742,23 +742,23 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { - struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai); + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; - struct device *dev = &hdmi->pdev->dev; + struct device *dev = &vc4_hdmi->pdev->dev; struct vc4_dev *vc4 = to_vc4_dev(drm); u32 audio_packet_config, channel_mask; u32 channel_map, i;

- if (substream != hdmi->audio.substream) + if (substream != vc4_hdmi->audio.substream) return -EINVAL;

dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__, params_rate(params), params_width(params), params_channels(params));

- hdmi->audio.channels = params_channels(params); - hdmi->audio.samplerate = params_rate(params); + vc4_hdmi->audio.channels = params_channels(params); + vc4_hdmi->audio.samplerate = params_rate(params);

HD_WRITE(VC4_HD_MAI_CTL, VC4_HD_MAI_CTL_RESET | @@ -767,23 +767,23 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, VC4_HD_MAI_CTL_ERRORE | VC4_HD_MAI_CTL_ERRORF);

- vc4_hdmi_audio_set_mai_clock(hdmi); + vc4_hdmi_audio_set_mai_clock(vc4_hdmi);

audio_packet_config = VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT | VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_INACTIVE_CHANNELS | VC4_SET_FIELD(0xf, VC4_HDMI_AUDIO_PACKET_B_FRAME_IDENTIFIER);

- channel_mask = GENMASK(hdmi->audio.channels - 1, 0); + channel_mask = GENMASK(vc4_hdmi->audio.channels - 1, 0); audio_packet_config |= VC4_SET_FIELD(channel_mask, VC4_HDMI_AUDIO_PACKET_CEA_MASK);

/* Set the MAI threshold. This logic mimics the firmware's. */ - if (hdmi->audio.samplerate > 96000) { + if (vc4_hdmi->audio.samplerate > 96000) { HD_WRITE(VC4_HD_MAI_THR, VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW)); - } else if (hdmi->audio.samplerate > 48000) { + } else if (vc4_hdmi->audio.samplerate > 48000) { HD_WRITE(VC4_HD_MAI_THR, VC4_SET_FIELD(0x14, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW)); @@ -807,7 +807,7 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream,

HDMI_WRITE(VC4_HDMI_MAI_CHANNEL_MAP, channel_map); HDMI_WRITE(VC4_HDMI_AUDIO_PACKET_CONFIG, audio_packet_config); - vc4_hdmi_set_n_cts(hdmi); + vc4_hdmi_set_n_cts(vc4_hdmi);

return 0; } @@ -815,8 +815,8 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { - struct vc4_hdmi *hdmi = dai_to_hdmi(dai); - struct drm_encoder *encoder = &hdmi->encoder.base.base; + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai); + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; struct drm_device *drm = encoder->dev; struct vc4_dev *vc4 = to_vc4_dev(drm);

@@ -827,7 +827,7 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd, HDMI_READ(VC4_HDMI_TX_PHY_CTL0) & ~VC4_HDMI_TX_PHY_RNG_PWRDN); HD_WRITE(VC4_HD_MAI_CTL, - VC4_SET_FIELD(hdmi->audio.channels, + VC4_SET_FIELD(vc4_hdmi->audio.channels, VC4_HD_MAI_CTL_CHNUM) | VC4_HD_MAI_CTL_ENABLE); break; @@ -859,8 +859,8 @@ static int vc4_hdmi_audio_eld_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct vc4_hdmi *hdmi = snd_component_to_hdmi(component); - struct drm_connector *connector = &hdmi->connector.base; + struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component); + struct drm_connector *connector = &vc4_hdmi->connector.base;

uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; uinfo->count = sizeof(connector->eld); @@ -872,8 +872,8 @@ static int vc4_hdmi_audio_eld_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct vc4_hdmi *hdmi = snd_component_to_hdmi(component); - struct drm_connector *connector = &hdmi->connector.base; + struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component); + struct drm_connector *connector = &vc4_hdmi->connector.base;

memcpy(ucontrol->value.bytes.data, connector->eld, sizeof(connector->eld)); @@ -941,9 +941,9 @@ static const struct snd_soc_component_driver vc4_hdmi_audio_cpu_dai_comp = {

static int vc4_hdmi_audio_cpu_dai_probe(struct snd_soc_dai *dai) { - struct vc4_hdmi *hdmi = dai_to_hdmi(dai); + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);

- snd_soc_dai_init_dma_data(dai, &hdmi->audio.dma_data, NULL); + snd_soc_dai_init_dma_data(dai, &vc4_hdmi->audio.dma_data, NULL);

return 0; } @@ -969,11 +969,11 @@ static const struct snd_dmaengine_pcm_config pcm_conf = { .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, };

-static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) +static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) { - struct snd_soc_dai_link *dai_link = &hdmi->audio.link; - struct snd_soc_card *card = &hdmi->audio.card; - struct device *dev = &hdmi->pdev->dev; + struct snd_soc_dai_link *dai_link = &vc4_hdmi->audio.link; + struct snd_soc_card *card = &vc4_hdmi->audio.card; + struct device *dev = &vc4_hdmi->pdev->dev; const __be32 *addr; int ret;

@@ -991,9 +991,9 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) * This VC/MMU should probably be exposed to avoid this kind of hacks. */ addr = of_get_address(dev->of_node, 1, NULL, NULL); - hdmi->audio.dma_data.addr = be32_to_cpup(addr) + VC4_HD_MAI_DATA; - hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - hdmi->audio.dma_data.maxburst = 2; + vc4_hdmi->audio.dma_data.addr = be32_to_cpup(addr) + VC4_HD_MAI_DATA; + vc4_hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + vc4_hdmi->audio.dma_data.maxburst = 2;

ret = devm_snd_dmaengine_pcm_register(dev, &pcm_conf, 0); if (ret) { @@ -1016,9 +1016,9 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) return ret; }

- dai_link->cpus = &hdmi->audio.cpu; - dai_link->codecs = &hdmi->audio.codec; - dai_link->platforms = &hdmi->audio.platform; + dai_link->cpus = &vc4_hdmi->audio.cpu; + dai_link->codecs = &vc4_hdmi->audio.codec; + dai_link->platforms = &vc4_hdmi->audio.platform;

dai_link->num_cpus = 1; dai_link->num_codecs = 1; @@ -1043,7 +1043,7 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) * now stored in card->drvdata and should be retrieved with * snd_soc_card_get_drvdata() if needed. */ - snd_soc_card_set_drvdata(card, hdmi); + snd_soc_card_set_drvdata(card, vc4_hdmi); ret = devm_snd_soc_register_card(dev, card); if (ret) dev_err(dev, "Could not register sound card: %d\n", ret); @@ -1056,20 +1056,21 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv) { struct vc4_dev *vc4 = priv; - struct vc4_hdmi *hdmi = vc4->hdmi; - - if (hdmi->cec_irq_was_rx) { - if (hdmi->cec_rx_msg.len) - cec_received_msg(hdmi->cec_adap, &hdmi->cec_rx_msg); - } else if (hdmi->cec_tx_ok) { - cec_transmit_done(hdmi->cec_adap, CEC_TX_STATUS_OK, + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; + + if (vc4_hdmi->cec_irq_was_rx) { + if (vc4_hdmi->cec_rx_msg.len) + cec_received_msg(vc4_hdmi->cec_adap, + &vc4_hdmi->cec_rx_msg); + } else if (vc4_hdmi->cec_tx_ok) { + cec_transmit_done(vc4_hdmi->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0); } else { /* * This CEC implementation makes 1 retry, so if we * get a NACK, then that means it made 2 attempts. */ - cec_transmit_done(hdmi->cec_adap, CEC_TX_STATUS_NACK, + cec_transmit_done(vc4_hdmi->cec_adap, CEC_TX_STATUS_NACK, 0, 2, 0, 0); } return IRQ_HANDLED; @@ -1095,23 +1096,23 @@ static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1) static irqreturn_t vc4_cec_irq_handler(int irq, void *priv) { struct vc4_dev *vc4 = priv; - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi; u32 stat = HDMI_READ(VC4_HDMI_CPU_STATUS); u32 cntrl1, cntrl5;

if (!(stat & VC4_HDMI_CPU_CEC)) return IRQ_NONE; - hdmi->cec_rx_msg.len = 0; + vc4_hdmi->cec_rx_msg.len = 0; cntrl1 = HDMI_READ(VC4_HDMI_CEC_CNTRL_1); cntrl5 = HDMI_READ(VC4_HDMI_CEC_CNTRL_5); - hdmi->cec_irq_was_rx = cntrl5 & VC4_HDMI_CEC_RX_CEC_INT; - if (hdmi->cec_irq_was_rx) { + vc4_hdmi->cec_irq_was_rx = cntrl5 & VC4_HDMI_CEC_RX_CEC_INT; + if (vc4_hdmi->cec_irq_was_rx) { vc4_cec_read_msg(vc4, cntrl1); cntrl1 |= VC4_HDMI_CEC_CLEAR_RECEIVE_OFF; HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, cntrl1); cntrl1 &= ~VC4_HDMI_CEC_CLEAR_RECEIVE_OFF; } else { - hdmi->cec_tx_ok = cntrl1 & VC4_HDMI_CEC_TX_STATUS_GOOD; + vc4_hdmi->cec_tx_ok = cntrl1 & VC4_HDMI_CEC_TX_STATUS_GOOD; cntrl1 &= ~VC4_HDMI_CEC_START_XMIT_BEGIN; } HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, cntrl1); @@ -1213,44 +1214,44 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) struct platform_device *pdev = to_platform_device(dev); struct drm_device *drm = dev_get_drvdata(master); struct vc4_dev *vc4 = drm->dev_private; - struct vc4_hdmi *hdmi; + struct vc4_hdmi *vc4_hdmi; struct drm_encoder *encoder; struct device_node *ddc_node; u32 value; int ret;

- hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); - if (!hdmi) + vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL); + if (!vc4_hdmi) return -ENOMEM;

- hdmi->pdev = pdev; - encoder = &hdmi->encoder.base.base; + vc4_hdmi->pdev = pdev; + encoder = &vc4_hdmi->encoder.base.base; encoder->base.type = VC4_ENCODER_TYPE_HDMI0;

- hdmi->hdmicore_regs = vc4_ioremap_regs(pdev, 0); - if (IS_ERR(hdmi->hdmicore_regs)) - return PTR_ERR(hdmi->hdmicore_regs); + vc4_hdmi->hdmicore_regs = vc4_ioremap_regs(pdev, 0); + if (IS_ERR(vc4_hdmi->hdmicore_regs)) + return PTR_ERR(vc4_hdmi->hdmicore_regs);

- hdmi->hd_regs = vc4_ioremap_regs(pdev, 1); - if (IS_ERR(hdmi->hd_regs)) - return PTR_ERR(hdmi->hd_regs); + vc4_hdmi->hd_regs = vc4_ioremap_regs(pdev, 1); + if (IS_ERR(vc4_hdmi->hd_regs)) + return PTR_ERR(vc4_hdmi->hd_regs);

- hdmi->hdmi_regset.base = hdmi->hdmicore_regs; - hdmi->hdmi_regset.regs = hdmi_regs; - hdmi->hdmi_regset.nregs = ARRAY_SIZE(hdmi_regs); - hdmi->hd_regset.base = hdmi->hd_regs; - hdmi->hd_regset.regs = hd_regs; - hdmi->hd_regset.nregs = ARRAY_SIZE(hd_regs); + vc4_hdmi->hdmi_regset.base = vc4_hdmi->hdmicore_regs; + vc4_hdmi->hdmi_regset.regs = hdmi_regs; + vc4_hdmi->hdmi_regset.nregs = ARRAY_SIZE(hdmi_regs); + vc4_hdmi->hd_regset.base = vc4_hdmi->hd_regs; + vc4_hdmi->hd_regset.regs = hd_regs; + vc4_hdmi->hd_regset.nregs = ARRAY_SIZE(hd_regs);

- hdmi->pixel_clock = devm_clk_get(dev, "pixel"); - if (IS_ERR(hdmi->pixel_clock)) { + vc4_hdmi->pixel_clock = devm_clk_get(dev, "pixel"); + if (IS_ERR(vc4_hdmi->pixel_clock)) { DRM_ERROR("Failed to get pixel clock\n"); - return PTR_ERR(hdmi->pixel_clock); + return PTR_ERR(vc4_hdmi->pixel_clock); } - hdmi->hsm_clock = devm_clk_get(dev, "hdmi"); - if (IS_ERR(hdmi->hsm_clock)) { + vc4_hdmi->hsm_clock = devm_clk_get(dev, "hdmi"); + if (IS_ERR(vc4_hdmi->hsm_clock)) { DRM_ERROR("Failed to get HDMI state machine clock\n"); - return PTR_ERR(hdmi->hsm_clock); + return PTR_ERR(vc4_hdmi->hsm_clock); }

ddc_node = of_parse_phandle(dev->of_node, "ddc", 0); @@ -1259,9 +1260,9 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) return -ENODEV; }

- hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node); + vc4_hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node); of_node_put(ddc_node); - if (!hdmi->ddc) { + if (!vc4_hdmi->ddc) { DRM_DEBUG("Failed to get ddc i2c adapter by node\n"); return -EPROBE_DEFER; } @@ -1270,13 +1271,13 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) * needs to be a bit higher than the pixel clock rate * (generally 148.5Mhz). */ - ret = clk_set_rate(hdmi->hsm_clock, HSM_CLOCK_FREQ); + ret = clk_set_rate(vc4_hdmi->hsm_clock, HSM_CLOCK_FREQ); if (ret) { DRM_ERROR("Failed to set HSM clock rate: %d\n", ret); goto err_put_i2c; }

- ret = clk_prepare_enable(hdmi->hsm_clock); + ret = clk_prepare_enable(vc4_hdmi->hsm_clock); if (ret) { DRM_ERROR("Failed to turn on HDMI state machine clock: %d\n", ret); @@ -1289,18 +1290,18 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) if (of_find_property(dev->of_node, "hpd-gpios", &value)) { enum of_gpio_flags hpd_gpio_flags;

- hdmi->hpd_gpio = of_get_named_gpio_flags(dev->of_node, + vc4_hdmi->hpd_gpio = of_get_named_gpio_flags(dev->of_node, "hpd-gpios", 0, &hpd_gpio_flags); - if (hdmi->hpd_gpio < 0) { - ret = hdmi->hpd_gpio; + if (vc4_hdmi->hpd_gpio < 0) { + ret = vc4_hdmi->hpd_gpio; goto err_unprepare_hsm; }

- hdmi->hpd_active_low = hpd_gpio_flags & OF_GPIO_ACTIVE_LOW; + vc4_hdmi->hpd_active_low = hpd_gpio_flags & OF_GPIO_ACTIVE_LOW; }

- vc4->hdmi = hdmi; + vc4->hdmi = vc4_hdmi;

/* HDMI core must be enabled. */ if (!(HD_READ(VC4_HD_M_CTL) & VC4_HD_M_ENABLE)) { @@ -1321,11 +1322,11 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) goto err_destroy_encoder;

#ifdef CONFIG_DRM_VC4_HDMI_CEC - hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops, + vc4_hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops, vc4, "vc4", CEC_CAP_DEFAULTS | CEC_CAP_CONNECTOR_INFO, 1); - ret = PTR_ERR_OR_ZERO(hdmi->cec_adap); + ret = PTR_ERR_OR_ZERO(vc4_hdmi->cec_adap); if (ret < 0) goto err_destroy_conn;

@@ -1349,32 +1350,32 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) "vc4 hdmi cec", vc4); if (ret) goto err_delete_cec_adap; - ret = cec_register_adapter(hdmi->cec_adap, dev); + ret = cec_register_adapter(vc4_hdmi->cec_adap, dev); if (ret < 0) goto err_delete_cec_adap; #endif

- ret = vc4_hdmi_audio_init(hdmi); + ret = vc4_hdmi_audio_init(vc4_hdmi); if (ret) goto err_destroy_encoder;

- vc4_debugfs_add_file(drm, "hdmi_regs", vc4_hdmi_debugfs_regs, hdmi); + vc4_debugfs_add_file(drm, "hdmi_regs", vc4_hdmi_debugfs_regs, vc4_hdmi);

return 0;

#ifdef CONFIG_DRM_VC4_HDMI_CEC err_delete_cec_adap: - cec_delete_adapter(hdmi->cec_adap); + cec_delete_adapter(vc4_hdmi->cec_adap); err_destroy_conn: - vc4_hdmi_connector_destroy(&hdmi->connector.base); + vc4_hdmi_connector_destroy(&vc4_hdmi->connector.base); #endif err_destroy_encoder: vc4_hdmi_encoder_destroy(encoder); err_unprepare_hsm: - clk_disable_unprepare(hdmi->hsm_clock); + clk_disable_unprepare(vc4_hdmi->hsm_clock); pm_runtime_disable(dev); err_put_i2c: - put_device(&hdmi->ddc->dev); + put_device(&vc4_hdmi->ddc->dev);

return ret; } @@ -1384,16 +1385,16 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master, { struct drm_device *drm = dev_get_drvdata(master); struct vc4_dev *vc4 = drm->dev_private; - struct vc4_hdmi *hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = vc4->hdmi;

- cec_unregister_adapter(hdmi->cec_adap); - vc4_hdmi_connector_destroy(&hdmi->connector.base); - vc4_hdmi_encoder_destroy(&hdmi->encoder.base.base); + cec_unregister_adapter(vc4_hdmi->cec_adap); + vc4_hdmi_connector_destroy(&vc4_hdmi->connector.base); + vc4_hdmi_encoder_destroy(&vc4_hdmi->encoder.base.base);

- clk_disable_unprepare(hdmi->hsm_clock); + clk_disable_unprepare(vc4_hdmi->hsm_clock); pm_runtime_disable(dev);

- put_device(&hdmi->ddc->dev); + put_device(&vc4_hdmi->ddc->dev);

vc4->hdmi = NULL; }

The function vc4_hdmi_connector_detect access its vc4_hdmi struct by dereferencing the pointer in the structure vc4_dev. This will cause some issues when we will have multiple HDMI controllers, so let's just use the local variable for now instead of dereferencing that pointer all the time, and we'll fix the local variable later.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index ec3062c4469f..8b563bdd451d 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -124,20 +124,20 @@ vc4_hdmi_connector_detect(struct drm_connector *connector, bool force) struct vc4_dev *vc4 = to_vc4_dev(dev); struct vc4_hdmi *vc4_hdmi = vc4->hdmi;

- if (vc4->hdmi->hpd_gpio) { - if (gpio_get_value_cansleep(vc4->hdmi->hpd_gpio) ^ - vc4->hdmi->hpd_active_low) + if (vc4_hdmi->hpd_gpio) { + if (gpio_get_value_cansleep(vc4_hdmi->hpd_gpio) ^ + vc4_hdmi->hpd_active_low) return connector_status_connected; - cec_phys_addr_invalidate(vc4->hdmi->cec_adap); + cec_phys_addr_invalidate(vc4_hdmi->cec_adap); return connector_status_disconnected; }

- if (drm_probe_ddc(vc4->hdmi->ddc)) + if (drm_probe_ddc(vc4_hdmi->ddc)) return connector_status_connected;

if (HDMI_READ(VC4_HDMI_HOTPLUG) & VC4_HDMI_HOTPLUG_CONNECTED) return connector_status_connected; - cec_phys_addr_invalidate(vc4->hdmi->cec_adap); + cec_phys_addr_invalidate(vc4_hdmi->cec_adap); return connector_status_disconnected; }

Our CEC code also retrieves the associated vc4_hdmi by setting the vc4_dev pointer as its private data, and then dereferences its vc4_hdmi pointer.

In order to eventually get rid of that pointer, we can simply pass the vc4_hdmi pointer directly.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index e3f81cbcbe6c..9fec97a328a7 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1028,8 +1028,7 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) #ifdef CONFIG_DRM_VC4_HDMI_CEC static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv) { - struct vc4_dev *vc4 = priv; - struct vc4_hdmi *vc4_hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = priv;

if (vc4_hdmi->cec_irq_was_rx) { if (vc4_hdmi->cec_rx_msg.len) @@ -1068,8 +1067,7 @@ static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1)

static irqreturn_t vc4_cec_irq_handler(int irq, void *priv) { - struct vc4_dev *vc4 = priv; - struct vc4_hdmi *vc4_hdmi = vc4->hdmi; + struct vc4_hdmi *vc4_hdmi = priv; u32 stat = HDMI_READ(VC4_HDMI_CPU_STATUS); u32 cntrl1, cntrl5;

@@ -1096,7 +1094,7 @@ static irqreturn_t vc4_cec_irq_handler(int irq, void *priv)

static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable) { - struct vc4_dev *vc4 = cec_get_drvdata(adap); + struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap); /* clock period in microseconds */ const u32 usecs = 1000000 / CEC_CLOCK_FREQ; u32 val = HDMI_READ(VC4_HDMI_CEC_CNTRL_5); @@ -1139,7 +1137,7 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)

static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) { - struct vc4_dev *vc4 = cec_get_drvdata(adap); + struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);

HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, (HDMI_READ(VC4_HDMI_CEC_CNTRL_1) & ~VC4_HDMI_CEC_ADDR_MASK) | @@ -1150,7 +1148,7 @@ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg) { - struct vc4_dev *vc4 = cec_get_drvdata(adap); + struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap); u32 val; unsigned int i;

@@ -1320,10 +1318,10 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) ret = devm_request_threaded_irq(dev, platform_get_irq(pdev, 0), vc4_cec_irq_handler, vc4_cec_irq_handler_thread, 0, - "vc4 hdmi cec", vc4); + "vc4 hdmi cec", vc4_hdmi); if (ret) goto err_delete_cec_adap; - ret = cec_register_adapter(vc4_hdmi->cec_adap, dev); + ret = cec_register_adapter(vc4_hdmi->cec_adap, vc4_hdmi); if (ret < 0) goto err_delete_cec_adap; #endif

The vc4_hdmi_connector was only used to switch between drm_connector to drm_encoder. However, we can now use vc4_hdmi to do the switch, so that structure is redundant.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 17 +++++++---------- drivers/gpu/drm/vc4/vc4_hdmi.h | 23 ++--------------------- 2 files changed, 9 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 8049a5ba291f..bbe7b0b3e017 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -188,13 +188,10 @@ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = static int vc4_hdmi_connector_init(struct drm_device *dev, struct vc4_hdmi *vc4_hdmi) { - struct vc4_hdmi_connector *hdmi_connector = &vc4_hdmi->connector; - struct drm_connector *connector = &hdmi_connector->base; + struct drm_connector *connector = &vc4_hdmi->connector; struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; int ret;

- hdmi_connector->encoder = encoder; - drm_connector_init_with_ddc(dev, connector, &vc4_hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA, @@ -292,7 +289,7 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder) { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder); - struct drm_connector *connector = &vc4_hdmi->connector.base; + struct drm_connector *connector = &vc4_hdmi->connector; struct drm_connector_state *cstate = connector->state; struct drm_crtc *crtc = encoder->crtc; const struct drm_display_mode *mode = &crtc->state->adjusted_mode; @@ -659,7 +656,7 @@ static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream, { struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai); struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; - struct drm_connector *connector = &vc4_hdmi->connector.base; + struct drm_connector *connector = &vc4_hdmi->connector; int ret;

if (vc4_hdmi->audio.substream && vc4_hdmi->audio.substream != substream) @@ -833,7 +830,7 @@ static int vc4_hdmi_audio_eld_ctl_info(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component); - struct drm_connector *connector = &vc4_hdmi->connector.base; + struct drm_connector *connector = &vc4_hdmi->connector;

uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; uinfo->count = sizeof(connector->eld); @@ -846,7 +843,7 @@ static int vc4_hdmi_audio_eld_ctl_get(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component); - struct drm_connector *connector = &vc4_hdmi->connector.base; + struct drm_connector *connector = &vc4_hdmi->connector;

memcpy(ucontrol->value.bytes.data, connector->eld, sizeof(connector->eld)); @@ -1335,7 +1332,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) err_delete_cec_adap: cec_delete_adapter(vc4_hdmi->cec_adap); err_destroy_conn: - vc4_hdmi_connector_destroy(&vc4_hdmi->connector.base); + vc4_hdmi_connector_destroy(&vc4_hdmi->connector); #endif err_destroy_encoder: vc4_hdmi_encoder_destroy(encoder); @@ -1359,7 +1356,7 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master, struct vc4_hdmi *vc4_hdmi = snd_soc_card_get_drvdata(card);

cec_unregister_adapter(vc4_hdmi->cec_adap); - vc4_hdmi_connector_destroy(&vc4_hdmi->connector.base); + vc4_hdmi_connector_destroy(&vc4_hdmi->connector); vc4_hdmi_encoder_destroy(&vc4_hdmi->encoder.base.base);

clk_disable_unprepare(vc4_hdmi->hsm_clock); diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 749a807cd1f3..88794136d2e4 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -21,23 +21,6 @@ to_vc4_hdmi_encoder(struct drm_encoder *encoder) return container_of(encoder, struct vc4_hdmi_encoder, base.base); }

-/* VC4 HDMI connector KMS struct */ -struct vc4_hdmi_connector { - struct drm_connector base; - - /* Since the connector is attached to just the one encoder, - * this is the reference to it so we can do the best_encoder() - * hook. - */ - struct drm_encoder *encoder; -}; - -static inline struct vc4_hdmi_connector * -to_vc4_hdmi_connector(struct drm_connector *connector) -{ - return container_of(connector, struct vc4_hdmi_connector, base); -} - /* HDMI audio information */ struct vc4_hdmi_audio { struct snd_soc_card card; @@ -56,7 +39,7 @@ struct vc4_hdmi { struct platform_device *pdev;

struct vc4_hdmi_encoder encoder; - struct vc4_hdmi_connector connector; + struct drm_connector connector;

struct vc4_hdmi_audio audio;

@@ -81,9 +64,7 @@ struct vc4_hdmi { static inline struct vc4_hdmi * connector_to_vc4_hdmi(struct drm_connector *connector) { - struct vc4_hdmi_connector *_connector = to_vc4_hdmi_connector(connector); - - return container_of(_connector, struct vc4_hdmi, connector); + return container_of(connector, struct vc4_hdmi, connector); }

static inline struct vc4_hdmi *

The HDMI controllers found in the BCM2711 have most of the registers reorganized in multiple registers areas and at different offsets than previously found.

The logic however remains pretty much the same, so it doesn't really make sense to create a whole new driver and we should share the code as much as possible.

Let's implement some indirection to wrap around a register and depending on the variant will lookup the associated register on that particular variant.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 354 ++++++++++++++--------------- drivers/gpu/drm/vc4/vc4_hdmi.h | 13 +- drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 244 ++++++++++++++++++++- drivers/gpu/drm/vc4/vc4_regs.h | 92 +-------- 4 files changed, 432 insertions(+), 271 deletions(-) create mode 100644 drivers/gpu/drm/vc4/vc4_hdmi_regs.h

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index a982ce8b901d..0e8cf0eb1891 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -49,62 +49,13 @@ #include "media/cec.h" #include "vc4_drv.h" #include "vc4_hdmi.h" +#include "vc4_hdmi_regs.h" #include "vc4_regs.h"

#define HSM_CLOCK_FREQ 163682864 #define CEC_CLOCK_FREQ 40000 #define CEC_CLOCK_DIV (HSM_CLOCK_FREQ / CEC_CLOCK_FREQ)

-static const struct debugfs_reg32 hdmi_regs[] = { - VC4_REG32(VC4_HDMI_CORE_REV), - VC4_REG32(VC4_HDMI_SW_RESET_CONTROL), - VC4_REG32(VC4_HDMI_HOTPLUG_INT), - VC4_REG32(VC4_HDMI_HOTPLUG), - VC4_REG32(VC4_HDMI_MAI_CHANNEL_MAP), - VC4_REG32(VC4_HDMI_MAI_CONFIG), - VC4_REG32(VC4_HDMI_MAI_FORMAT), - VC4_REG32(VC4_HDMI_AUDIO_PACKET_CONFIG), - VC4_REG32(VC4_HDMI_RAM_PACKET_CONFIG), - VC4_REG32(VC4_HDMI_HORZA), - VC4_REG32(VC4_HDMI_HORZB), - VC4_REG32(VC4_HDMI_FIFO_CTL), - VC4_REG32(VC4_HDMI_SCHEDULER_CONTROL), - VC4_REG32(VC4_HDMI_VERTA0), - VC4_REG32(VC4_HDMI_VERTA1), - VC4_REG32(VC4_HDMI_VERTB0), - VC4_REG32(VC4_HDMI_VERTB1), - VC4_REG32(VC4_HDMI_TX_PHY_RESET_CTL), - VC4_REG32(VC4_HDMI_TX_PHY_CTL0), - - VC4_REG32(VC4_HDMI_CEC_CNTRL_1), - VC4_REG32(VC4_HDMI_CEC_CNTRL_2), - VC4_REG32(VC4_HDMI_CEC_CNTRL_3), - VC4_REG32(VC4_HDMI_CEC_CNTRL_4), - VC4_REG32(VC4_HDMI_CEC_CNTRL_5), - VC4_REG32(VC4_HDMI_CPU_STATUS), - VC4_REG32(VC4_HDMI_CPU_MASK_STATUS), - - VC4_REG32(VC4_HDMI_CEC_RX_DATA_1), - VC4_REG32(VC4_HDMI_CEC_RX_DATA_2), - VC4_REG32(VC4_HDMI_CEC_RX_DATA_3), - VC4_REG32(VC4_HDMI_CEC_RX_DATA_4), - VC4_REG32(VC4_HDMI_CEC_TX_DATA_1), - VC4_REG32(VC4_HDMI_CEC_TX_DATA_2), - VC4_REG32(VC4_HDMI_CEC_TX_DATA_3), - VC4_REG32(VC4_HDMI_CEC_TX_DATA_4), -}; - -static const struct debugfs_reg32 hd_regs[] = { - VC4_REG32(VC4_HD_M_CTL), - VC4_REG32(VC4_HD_MAI_CTL), - VC4_REG32(VC4_HD_MAI_THR), - VC4_REG32(VC4_HD_MAI_FMT), - VC4_REG32(VC4_HD_MAI_SMP), - VC4_REG32(VC4_HD_VID_CTL), - VC4_REG32(VC4_HD_CSC_CTL), - VC4_REG32(VC4_HD_FRAME_COUNT), -}; - static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) { struct drm_info_node *node = (struct drm_info_node *)m->private; @@ -133,7 +84,7 @@ vc4_hdmi_connector_detect(struct drm_connector *connector, bool force) if (drm_probe_ddc(vc4_hdmi->ddc)) return connector_status_connected;

- if (HDMI_READ(VC4_HDMI_HOTPLUG) & VC4_HDMI_HOTPLUG_CONNECTED) + if (HDMI_READ(HDMI_HOTPLUG) & VC4_HDMI_HOTPLUG_CONNECTED) return connector_status_connected; cec_phys_addr_invalidate(vc4_hdmi->cec_adap); return connector_status_disconnected; @@ -231,10 +182,10 @@ static int vc4_hdmi_stop_packet(struct drm_encoder *encoder, struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); u32 packet_id = type - 0x80;

- HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, - HDMI_READ(VC4_HDMI_RAM_PACKET_CONFIG) & ~BIT(packet_id)); + HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, + HDMI_READ(HDMI_RAM_PACKET_CONFIG) & ~BIT(packet_id));

- return wait_for(!(HDMI_READ(VC4_HDMI_RAM_PACKET_STATUS) & + return wait_for(!(HDMI_READ(HDMI_RAM_PACKET_STATUS) & BIT(packet_id)), 100); }

@@ -243,12 +194,16 @@ static void vc4_hdmi_write_infoframe(struct drm_encoder *encoder, { struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); u32 packet_id = frame->any.type - 0x80; - u32 packet_reg = VC4_HDMI_RAM_PACKET(packet_id); + const struct vc4_hdmi_register *ram_packet_start = + &vc4_hdmi->variant->registers[HDMI_RAM_PACKET_START]; + u32 packet_reg = ram_packet_start->offset + VC4_HDMI_PACKET_STRIDE * packet_id; + void __iomem *base = __vc4_hdmi_get_field_base(vc4_hdmi, + ram_packet_start->reg); uint8_t buffer[VC4_HDMI_PACKET_STRIDE]; ssize_t len, i; int ret;

- WARN_ONCE(!(HDMI_READ(VC4_HDMI_RAM_PACKET_CONFIG) & + WARN_ONCE(!(HDMI_READ(HDMI_RAM_PACKET_CONFIG) & VC4_HDMI_RAM_PACKET_ENABLE), "Packet RAM has to be on to store the packet.");

@@ -263,23 +218,23 @@ static void vc4_hdmi_write_infoframe(struct drm_encoder *encoder, }

for (i = 0; i < len; i += 7) { - HDMI_WRITE(packet_reg, - buffer[i + 0] << 0 | - buffer[i + 1] << 8 | - buffer[i + 2] << 16); + writel(buffer[i + 0] << 0 | + buffer[i + 1] << 8 | + buffer[i + 2] << 16, + base + packet_reg); packet_reg += 4;

- HDMI_WRITE(packet_reg, - buffer[i + 3] << 0 | - buffer[i + 4] << 8 | - buffer[i + 5] << 16 | - buffer[i + 6] << 24); + writel(buffer[i + 3] << 0 | + buffer[i + 4] << 8 | + buffer[i + 5] << 16 | + buffer[i + 6] << 24, + base + packet_reg); packet_reg += 4; }

- HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, - HDMI_READ(VC4_HDMI_RAM_PACKET_CONFIG) | BIT(packet_id)); - ret = wait_for((HDMI_READ(VC4_HDMI_RAM_PACKET_STATUS) & + HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, + HDMI_READ(HDMI_RAM_PACKET_CONFIG) | BIT(packet_id)); + ret = wait_for((HDMI_READ(HDMI_RAM_PACKET_STATUS) & BIT(packet_id)), 100); if (ret) DRM_ERROR("Failed to wait for infoframe to start: %d\n", ret); @@ -357,11 +312,11 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); int ret;

- HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, 0); + HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, 0);

- HDMI_WRITE(VC4_HDMI_TX_PHY_RESET_CTL, 0xf << 16); - HD_WRITE(VC4_HD_VID_CTL, - HD_READ(VC4_HD_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE); + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); + HDMI_WRITE(HDMI_VID_CTL, + HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);

clk_disable_unprepare(vc4_hdmi->pixel_clock);

@@ -416,18 +371,18 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) return; }

- HDMI_WRITE(VC4_HDMI_SW_RESET_CONTROL, + HDMI_WRITE(HDMI_SW_RESET_CONTROL, VC4_HDMI_SW_RESET_HDMI | VC4_HDMI_SW_RESET_FORMAT_DETECT);

- HDMI_WRITE(VC4_HDMI_SW_RESET_CONTROL, 0); + HDMI_WRITE(HDMI_SW_RESET_CONTROL, 0);

/* PHY should be in reset, like * vc4_hdmi_encoder_disable() does. */ - HDMI_WRITE(VC4_HDMI_TX_PHY_RESET_CTL, 0xf << 16); + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);

- HDMI_WRITE(VC4_HDMI_TX_PHY_RESET_CTL, 0); + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0);

if (debug_dump_regs) { struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev); @@ -437,20 +392,20 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) drm_print_regset32(&p, &vc4_hdmi->hd_regset); }

- HD_WRITE(VC4_HD_VID_CTL, 0); + HDMI_WRITE(HDMI_VID_CTL, 0);

- HDMI_WRITE(VC4_HDMI_SCHEDULER_CONTROL, - HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) | + HDMI_WRITE(HDMI_SCHEDULER_CONTROL, + HDMI_READ(HDMI_SCHEDULER_CONTROL) | VC4_HDMI_SCHEDULER_CONTROL_MANUAL_FORMAT | VC4_HDMI_SCHEDULER_CONTROL_IGNORE_VSYNC_PREDICTS);

- HDMI_WRITE(VC4_HDMI_HORZA, + HDMI_WRITE(HDMI_HORZA, (vsync_pos ? VC4_HDMI_HORZA_VPOS : 0) | (hsync_pos ? VC4_HDMI_HORZA_HPOS : 0) | VC4_SET_FIELD(mode->hdisplay * pixel_rep, VC4_HDMI_HORZA_HAP));

- HDMI_WRITE(VC4_HDMI_HORZB, + HDMI_WRITE(HDMI_HORZB, VC4_SET_FIELD((mode->htotal - mode->hsync_end) * pixel_rep, VC4_HDMI_HORZB_HBP) | @@ -461,13 +416,13 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) mode->hdisplay) * pixel_rep, VC4_HDMI_HORZB_HFP));

- HDMI_WRITE(VC4_HDMI_VERTA0, verta); - HDMI_WRITE(VC4_HDMI_VERTA1, verta); + HDMI_WRITE(HDMI_VERTA0, verta); + HDMI_WRITE(HDMI_VERTA1, verta);

- HDMI_WRITE(VC4_HDMI_VERTB0, vertb_even); - HDMI_WRITE(VC4_HDMI_VERTB1, vertb); + HDMI_WRITE(HDMI_VERTB0, vertb_even); + HDMI_WRITE(HDMI_VERTB1, vertb);

- HD_WRITE(VC4_HD_VID_CTL, + HDMI_WRITE(HDMI_VID_CTL, (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) | (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));

@@ -492,21 +447,21 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, VC4_HD_CSC_CTL_MODE);

- HD_WRITE(VC4_HD_CSC_12_11, (0x000 << 16) | 0x000); - HD_WRITE(VC4_HD_CSC_14_13, (0x100 << 16) | 0x6e0); - HD_WRITE(VC4_HD_CSC_22_21, (0x6e0 << 16) | 0x000); - HD_WRITE(VC4_HD_CSC_24_23, (0x100 << 16) | 0x000); - HD_WRITE(VC4_HD_CSC_32_31, (0x000 << 16) | 0x6e0); - HD_WRITE(VC4_HD_CSC_34_33, (0x100 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); vc4_encoder->limited_rgb_range = true; } else { vc4_encoder->limited_rgb_range = false; }

/* The RGB order applies even when CSC is disabled. */ - HD_WRITE(VC4_HD_CSC_CTL, csc_ctl); + HDMI_WRITE(HDMI_CSC_CTL, csc_ctl);

- HDMI_WRITE(VC4_HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N); + HDMI_WRITE(HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N);

if (debug_dump_regs) { struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev); @@ -516,30 +471,30 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) drm_print_regset32(&p, &vc4_hdmi->hd_regset); }

- HD_WRITE(VC4_HD_VID_CTL, - HD_READ(VC4_HD_VID_CTL) | - VC4_HD_VID_CTL_ENABLE | - VC4_HD_VID_CTL_UNDERFLOW_ENABLE | - VC4_HD_VID_CTL_FRAME_COUNTER_RESET); + HDMI_WRITE(HDMI_VID_CTL, + HDMI_READ(HDMI_VID_CTL) | + VC4_HD_VID_CTL_ENABLE | + VC4_HD_VID_CTL_UNDERFLOW_ENABLE | + VC4_HD_VID_CTL_FRAME_COUNTER_RESET);

if (vc4_encoder->hdmi_monitor) { - HDMI_WRITE(VC4_HDMI_SCHEDULER_CONTROL, - HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) | + HDMI_WRITE(HDMI_SCHEDULER_CONTROL, + HDMI_READ(HDMI_SCHEDULER_CONTROL) | VC4_HDMI_SCHEDULER_CONTROL_MODE_HDMI);

- ret = wait_for(HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) & + ret = wait_for(HDMI_READ(HDMI_SCHEDULER_CONTROL) & VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE, 1000); WARN_ONCE(ret, "Timeout waiting for " "VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE\n"); } else { - HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, - HDMI_READ(VC4_HDMI_RAM_PACKET_CONFIG) & + HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, + HDMI_READ(HDMI_RAM_PACKET_CONFIG) & ~(VC4_HDMI_RAM_PACKET_ENABLE)); - HDMI_WRITE(VC4_HDMI_SCHEDULER_CONTROL, - HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) & + HDMI_WRITE(HDMI_SCHEDULER_CONTROL, + HDMI_READ(HDMI_SCHEDULER_CONTROL) & ~VC4_HDMI_SCHEDULER_CONTROL_MODE_HDMI);

- ret = wait_for(!(HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) & + ret = wait_for(!(HDMI_READ(HDMI_SCHEDULER_CONTROL) & VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE), 1000); WARN_ONCE(ret, "Timeout waiting for " "!VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE\n"); @@ -548,31 +503,31 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) if (vc4_encoder->hdmi_monitor) { u32 drift;

- WARN_ON(!(HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) & + WARN_ON(!(HDMI_READ(HDMI_SCHEDULER_CONTROL) & VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE)); - HDMI_WRITE(VC4_HDMI_SCHEDULER_CONTROL, - HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) | + HDMI_WRITE(HDMI_SCHEDULER_CONTROL, + HDMI_READ(HDMI_SCHEDULER_CONTROL) | VC4_HDMI_SCHEDULER_CONTROL_VERT_ALWAYS_KEEPOUT);

- HDMI_WRITE(VC4_HDMI_RAM_PACKET_CONFIG, + HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, VC4_HDMI_RAM_PACKET_ENABLE);

vc4_hdmi_set_infoframes(encoder);

- drift = HDMI_READ(VC4_HDMI_FIFO_CTL); + drift = HDMI_READ(HDMI_FIFO_CTL); drift &= VC4_HDMI_FIFO_VALID_WRITE_MASK;

- HDMI_WRITE(VC4_HDMI_FIFO_CTL, + HDMI_WRITE(HDMI_FIFO_CTL, drift & ~VC4_HDMI_FIFO_CTL_RECENTER); - HDMI_WRITE(VC4_HDMI_FIFO_CTL, + HDMI_WRITE(HDMI_FIFO_CTL, drift | VC4_HDMI_FIFO_CTL_RECENTER); usleep_range(1000, 1100); - HDMI_WRITE(VC4_HDMI_FIFO_CTL, + HDMI_WRITE(HDMI_FIFO_CTL, drift & ~VC4_HDMI_FIFO_CTL_RECENTER); - HDMI_WRITE(VC4_HDMI_FIFO_CTL, + HDMI_WRITE(HDMI_FIFO_CTL, drift | VC4_HDMI_FIFO_CTL_RECENTER);

- ret = wait_for(HDMI_READ(VC4_HDMI_FIFO_CTL) & + ret = wait_for(HDMI_READ(HDMI_FIFO_CTL) & VC4_HDMI_FIFO_CTL_RECENTER_DONE, 1); WARN_ONCE(ret, "Timeout waiting for " "VC4_HDMI_FIFO_CTL_RECENTER_DONE"); @@ -612,7 +567,7 @@ static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *vc4_hdmi) VC4_HD_MAI_SMP_M_SHIFT) + 1, &n, &m);

- HD_WRITE(VC4_HD_MAI_SMP, + HDMI_WRITE(HDMI_MAI_SMP, VC4_SET_FIELD(n, VC4_HD_MAI_SMP_N) | VC4_SET_FIELD(m - 1, VC4_HD_MAI_SMP_M)); } @@ -631,7 +586,7 @@ static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi) do_div(tmp, 128 * samplerate); cts = tmp;

- HDMI_WRITE(VC4_HDMI_CRP_CFG, + HDMI_WRITE(HDMI_CRP_CFG, VC4_HDMI_CRP_CFG_EXTERNAL_CTS_EN | VC4_SET_FIELD(n, VC4_HDMI_CRP_CFG_N));

@@ -640,8 +595,8 @@ static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi) * providing a CTS_1 value. The two CTS values are alternated * between based on the period fields */ - HDMI_WRITE(VC4_HDMI_CTS_0, cts); - HDMI_WRITE(VC4_HDMI_CTS_1, cts); + HDMI_WRITE(HDMI_CTS_0, cts); + HDMI_WRITE(HDMI_CTS_1, cts); }

static inline struct vc4_hdmi *dai_to_hdmi(struct snd_soc_dai *dai) @@ -668,7 +623,7 @@ static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream, * If the HDMI encoder hasn't probed, or the encoder is * currently in DVI mode, treat the codec dai as missing. */ - if (!encoder->crtc || !(HDMI_READ(VC4_HDMI_RAM_PACKET_CONFIG) & + if (!encoder->crtc || !(HDMI_READ(HDMI_RAM_PACKET_CONFIG) & VC4_HDMI_RAM_PACKET_ENABLE)) return -ENODEV;

@@ -694,9 +649,9 @@ static void vc4_hdmi_audio_reset(struct vc4_hdmi *vc4_hdmi) if (ret) dev_err(dev, "Failed to stop audio infoframe: %d\n", ret);

- HD_WRITE(VC4_HD_MAI_CTL, VC4_HD_MAI_CTL_RESET); - HD_WRITE(VC4_HD_MAI_CTL, VC4_HD_MAI_CTL_ERRORF); - HD_WRITE(VC4_HD_MAI_CTL, VC4_HD_MAI_CTL_FLUSH); + HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_RESET); + HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_ERRORF); + HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_FLUSH); }

static void vc4_hdmi_audio_shutdown(struct snd_pcm_substream *substream, @@ -732,7 +687,7 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, vc4_hdmi->audio.channels = params_channels(params); vc4_hdmi->audio.samplerate = params_rate(params);

- HD_WRITE(VC4_HD_MAI_CTL, + HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_RESET | VC4_HD_MAI_CTL_FLUSH | VC4_HD_MAI_CTL_DLATE | @@ -752,22 +707,22 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream,

/* Set the MAI threshold. This logic mimics the firmware's. */ if (vc4_hdmi->audio.samplerate > 96000) { - HD_WRITE(VC4_HD_MAI_THR, + HDMI_WRITE(HDMI_MAI_THR, VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW)); } else if (vc4_hdmi->audio.samplerate > 48000) { - HD_WRITE(VC4_HD_MAI_THR, + HDMI_WRITE(HDMI_MAI_THR, VC4_SET_FIELD(0x14, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW)); } else { - HD_WRITE(VC4_HD_MAI_THR, + HDMI_WRITE(HDMI_MAI_THR, VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) | VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) | VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW)); }

- HDMI_WRITE(VC4_HDMI_MAI_CONFIG, + HDMI_WRITE(HDMI_MAI_CONFIG, VC4_HDMI_MAI_CONFIG_BIT_REVERSE | VC4_SET_FIELD(channel_mask, VC4_HDMI_MAI_CHANNEL_MASK));

@@ -777,8 +732,8 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, channel_map |= i << (3 * i); }

- HDMI_WRITE(VC4_HDMI_MAI_CHANNEL_MAP, channel_map); - HDMI_WRITE(VC4_HDMI_AUDIO_PACKET_CONFIG, audio_packet_config); + HDMI_WRITE(HDMI_MAI_CHANNEL_MAP, channel_map); + HDMI_WRITE(HDMI_AUDIO_PACKET_CONFIG, audio_packet_config); vc4_hdmi_set_n_cts(vc4_hdmi);

return 0; @@ -793,21 +748,22 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd, switch (cmd) { case SNDRV_PCM_TRIGGER_START: vc4_hdmi_set_audio_infoframe(encoder); - HDMI_WRITE(VC4_HDMI_TX_PHY_CTL0, - HDMI_READ(VC4_HDMI_TX_PHY_CTL0) & + HDMI_WRITE(HDMI_TX_PHY_CTL_0, + HDMI_READ(HDMI_TX_PHY_CTL_0) & ~VC4_HDMI_TX_PHY_RNG_PWRDN); - HD_WRITE(VC4_HD_MAI_CTL, + + HDMI_WRITE(HDMI_MAI_CTL, VC4_SET_FIELD(vc4_hdmi->audio.channels, VC4_HD_MAI_CTL_CHNUM) | VC4_HD_MAI_CTL_ENABLE); break; case SNDRV_PCM_TRIGGER_STOP: - HD_WRITE(VC4_HD_MAI_CTL, + HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_DLATE | VC4_HD_MAI_CTL_ERRORE | VC4_HD_MAI_CTL_ERRORF); - HDMI_WRITE(VC4_HDMI_TX_PHY_CTL0, - HDMI_READ(VC4_HDMI_TX_PHY_CTL0) | + HDMI_WRITE(HDMI_TX_PHY_CTL_0, + HDMI_READ(HDMI_TX_PHY_CTL_0) | VC4_HDMI_TX_PHY_RNG_PWRDN); break; default: @@ -941,6 +897,8 @@ static const struct snd_dmaengine_pcm_config pcm_conf = {

static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) { + const struct vc4_hdmi_register *mai_data = + &vc4_hdmi->variant->registers[HDMI_MAI_DATA]; struct snd_soc_dai_link *dai_link = &vc4_hdmi->audio.link; struct snd_soc_card *card = &vc4_hdmi->audio.card; struct device *dev = &vc4_hdmi->pdev->dev; @@ -953,6 +911,11 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) return 0; }

+ if (mai_data->reg != VC4_HD) { + WARN_ONCE(true, "MAI isn't in the HD block\n"); + return -EINVAL; + } + /* * Get the physical address of VC4_HD_MAI_DATA. We need to retrieve * the bus address specified in the DT, because the physical address @@ -961,7 +924,7 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) * This VC/MMU should probably be exposed to avoid this kind of hacks. */ addr = of_get_address(dev->of_node, 1, NULL, NULL); - vc4_hdmi->audio.dma_data.addr = be32_to_cpup(addr) + VC4_HD_MAI_DATA; + vc4_hdmi->audio.dma_data.addr = be32_to_cpup(addr) + mai_data->offset; vc4_hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; vc4_hdmi->audio.dma_data.maxburst = 2;

@@ -1053,7 +1016,7 @@ static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1) msg->len = 1 + ((cntrl1 & VC4_HDMI_CEC_REC_WRD_CNT_MASK) >> VC4_HDMI_CEC_REC_WRD_CNT_SHIFT); for (i = 0; i < msg->len; i += 4) { - u32 val = HDMI_READ(VC4_HDMI_CEC_RX_DATA_1 + i); + u32 val = HDMI_READ(HDMI_CEC_RX_DATA_1 + i);

msg->msg[i] = val & 0xff; msg->msg[i + 1] = (val >> 8) & 0xff; @@ -1065,26 +1028,26 @@ static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1) static irqreturn_t vc4_cec_irq_handler(int irq, void *priv) { struct vc4_hdmi *vc4_hdmi = priv; - u32 stat = HDMI_READ(VC4_HDMI_CPU_STATUS); + u32 stat = HDMI_READ(HDMI_CPU_STATUS); u32 cntrl1, cntrl5;

if (!(stat & VC4_HDMI_CPU_CEC)) return IRQ_NONE; vc4_hdmi->cec_rx_msg.len = 0; - cntrl1 = HDMI_READ(VC4_HDMI_CEC_CNTRL_1); - cntrl5 = HDMI_READ(VC4_HDMI_CEC_CNTRL_5); + cntrl1 = HDMI_READ(HDMI_CEC_CNTRL_1); + cntrl5 = HDMI_READ(HDMI_CEC_CNTRL_5); vc4_hdmi->cec_irq_was_rx = cntrl5 & VC4_HDMI_CEC_RX_CEC_INT; if (vc4_hdmi->cec_irq_was_rx) { vc4_cec_read_msg(vc4, cntrl1); cntrl1 |= VC4_HDMI_CEC_CLEAR_RECEIVE_OFF; - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, cntrl1); + HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1); cntrl1 &= ~VC4_HDMI_CEC_CLEAR_RECEIVE_OFF; } else { vc4_hdmi->cec_tx_ok = cntrl1 & VC4_HDMI_CEC_TX_STATUS_GOOD; cntrl1 &= ~VC4_HDMI_CEC_START_XMIT_BEGIN; } - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, cntrl1); - HDMI_WRITE(VC4_HDMI_CPU_CLEAR, VC4_HDMI_CPU_CEC); + HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1); + HDMI_WRITE(HDMI_CPU_CLEAR, VC4_HDMI_CPU_CEC);

return IRQ_WAKE_THREAD; } @@ -1094,7 +1057,7 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable) struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap); /* clock period in microseconds */ const u32 usecs = 1000000 / CEC_CLOCK_FREQ; - u32 val = HDMI_READ(VC4_HDMI_CEC_CNTRL_5); + u32 val = HDMI_READ(HDMI_CEC_CNTRL_5);

val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET | VC4_HDMI_CEC_CNT_TO_4700_US_MASK | @@ -1103,30 +1066,30 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable) ((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);

if (enable) { - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_5, val | + HDMI_WRITE(HDMI_CEC_CNTRL_5, val | VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_5, val); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_2, + HDMI_WRITE(HDMI_CEC_CNTRL_5, val); + HDMI_WRITE(HDMI_CEC_CNTRL_2, ((1500 / usecs) << VC4_HDMI_CEC_CNT_TO_1500_US_SHIFT) | ((1300 / usecs) << VC4_HDMI_CEC_CNT_TO_1300_US_SHIFT) | ((800 / usecs) << VC4_HDMI_CEC_CNT_TO_800_US_SHIFT) | ((600 / usecs) << VC4_HDMI_CEC_CNT_TO_600_US_SHIFT) | ((400 / usecs) << VC4_HDMI_CEC_CNT_TO_400_US_SHIFT)); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_3, + HDMI_WRITE(HDMI_CEC_CNTRL_3, ((2750 / usecs) << VC4_HDMI_CEC_CNT_TO_2750_US_SHIFT) | ((2400 / usecs) << VC4_HDMI_CEC_CNT_TO_2400_US_SHIFT) | ((2050 / usecs) << VC4_HDMI_CEC_CNT_TO_2050_US_SHIFT) | ((1700 / usecs) << VC4_HDMI_CEC_CNT_TO_1700_US_SHIFT)); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_4, + HDMI_WRITE(HDMI_CEC_CNTRL_4, ((4300 / usecs) << VC4_HDMI_CEC_CNT_TO_4300_US_SHIFT) | ((3900 / usecs) << VC4_HDMI_CEC_CNT_TO_3900_US_SHIFT) | ((3600 / usecs) << VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT) | ((3500 / usecs) << VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT));

- HDMI_WRITE(VC4_HDMI_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC); + HDMI_WRITE(HDMI_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC); } else { - HDMI_WRITE(VC4_HDMI_CPU_MASK_SET, VC4_HDMI_CPU_CEC); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_5, val | + HDMI_WRITE(HDMI_CPU_MASK_SET, VC4_HDMI_CPU_CEC); + HDMI_WRITE(HDMI_CEC_CNTRL_5, val | VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET); } return 0; @@ -1136,8 +1099,8 @@ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) { struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);

- HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, - (HDMI_READ(VC4_HDMI_CEC_CNTRL_1) & ~VC4_HDMI_CEC_ADDR_MASK) | + HDMI_WRITE(HDMI_CEC_CNTRL_1, + (HDMI_READ(HDMI_CEC_CNTRL_1) & ~VC4_HDMI_CEC_ADDR_MASK) | (log_addr & 0xf) << VC4_HDMI_CEC_ADDR_SHIFT); return 0; } @@ -1150,20 +1113,20 @@ static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, unsigned int i;

for (i = 0; i < msg->len; i += 4) - HDMI_WRITE(VC4_HDMI_CEC_TX_DATA_1 + i, + HDMI_WRITE(HDMI_CEC_TX_DATA_1 + i, (msg->msg[i]) | (msg->msg[i + 1] << 8) | (msg->msg[i + 2] << 16) | (msg->msg[i + 3] << 24));

- val = HDMI_READ(VC4_HDMI_CEC_CNTRL_1); + val = HDMI_READ(HDMI_CEC_CNTRL_1); val &= ~VC4_HDMI_CEC_START_XMIT_BEGIN; - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, val); + HDMI_WRITE(HDMI_CEC_CNTRL_1, val); val &= ~VC4_HDMI_CEC_MESSAGE_LENGTH_MASK; val |= (msg->len - 1) << VC4_HDMI_CEC_MESSAGE_LENGTH_SHIFT; val |= VC4_HDMI_CEC_START_XMIT_BEGIN;

- HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, val); + HDMI_WRITE(HDMI_CEC_CNTRL_1, val); return 0; }

@@ -1174,26 +1137,63 @@ static const struct cec_adap_ops vc4_hdmi_cec_adap_ops = { }; #endif

+static int vc4_hdmi_build_regset(struct vc4_hdmi *vc4_hdmi, + struct debugfs_regset32 *regset, + enum vc4_hdmi_regs reg) +{ + const struct vc4_hdmi_variant *variant = vc4_hdmi->variant; + struct debugfs_reg32 *regs; + unsigned int count = 0; + unsigned int i; + + regs = kzalloc(variant->num_registers * sizeof(*regs), + GFP_KERNEL); + if (!regs) + return -ENOMEM; + + for (i = 0; i < variant->num_registers; i++) { + const struct vc4_hdmi_register *field = &variant->registers[i]; + + if (field->reg != reg) + continue; + + regs[count].name = field->name; + regs[count].offset = field->offset; + count++; + } + + regs = krealloc(regs, count * sizeof(*regs), GFP_KERNEL); + if (!regs) + return -ENOMEM; + + regset->base = __vc4_hdmi_get_field_base(vc4_hdmi, reg); + regset->regs = regs; + regset->nregs = count; + + return 0; +} + static int vc4_hdmi_init_resources(struct vc4_hdmi *vc4_hdmi) { struct platform_device *pdev = vc4_hdmi->pdev; struct device *dev = &pdev->dev; + int ret;

vc4_hdmi->hdmicore_regs = vc4_ioremap_regs(pdev, 0); if (IS_ERR(vc4_hdmi->hdmicore_regs)) return PTR_ERR(vc4_hdmi->hdmicore_regs);

- vc4_hdmi->hdmi_regset.base = vc4_hdmi->hdmicore_regs; - vc4_hdmi->hdmi_regset.regs = hdmi_regs; - vc4_hdmi->hdmi_regset.nregs = ARRAY_SIZE(hdmi_regs); + ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hd_regset, VC4_HD); + if (ret) + return ret;

vc4_hdmi->hd_regs = vc4_ioremap_regs(pdev, 1); if (IS_ERR(vc4_hdmi->hd_regs)) return PTR_ERR(vc4_hdmi->hd_regs);

- vc4_hdmi->hd_regset.base = vc4_hdmi->hd_regs; - vc4_hdmi->hd_regset.regs = hd_regs; - vc4_hdmi->hd_regset.nregs = ARRAY_SIZE(hd_regs); + ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hdmi_regset, VC4_HDMI); + if (ret) + return ret;

vc4_hdmi->pixel_clock = devm_clk_get(dev, "pixel"); if (IS_ERR(vc4_hdmi->pixel_clock)) { @@ -1286,12 +1286,12 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) }

/* HDMI core must be enabled. */ - if (!(HD_READ(VC4_HD_M_CTL) & VC4_HD_M_ENABLE)) { - HD_WRITE(VC4_HD_M_CTL, VC4_HD_M_SW_RST); + if (!(HDMI_READ(HDMI_M_CTL) & VC4_HD_M_ENABLE)) { + HDMI_WRITE(HDMI_M_CTL, VC4_HD_M_SW_RST); udelay(1); - HD_WRITE(VC4_HD_M_CTL, 0); + HDMI_WRITE(HDMI_M_CTL, 0);

- HD_WRITE(VC4_HD_M_CTL, VC4_HD_M_ENABLE); + HDMI_WRITE(HDMI_M_CTL, VC4_HD_M_ENABLE); } pm_runtime_enable(dev);

@@ -1315,8 +1315,8 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) cec_fill_conn_info_from_drm(&conn_info, hdmi->connector); cec_s_conn_info(hdmi->cec_adap, &conn_info);

- HDMI_WRITE(VC4_HDMI_CPU_MASK_SET, 0xffffffff); - value = HDMI_READ(VC4_HDMI_CEC_CNTRL_1); + HDMI_WRITE(HDMI_CPU_MASK_SET, 0xffffffff); + value = HDMI_READ(HDMI_CEC_CNTRL_1); value &= ~VC4_HDMI_CEC_DIV_CLK_CNT_MASK; /* * Set the logical address to Unregistered and set the clock @@ -1325,7 +1325,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) */ value |= VC4_HDMI_CEC_ADDR_MASK | (4091 << VC4_HDMI_CEC_DIV_CLK_CNT_SHIFT); - HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, value); + HDMI_WRITE(HDMI_CEC_CNTRL_1, value); ret = devm_request_threaded_irq(dev, platform_get_irq(pdev, 0), vc4_cec_irq_handler, vc4_cec_irq_handler_thread, 0, @@ -1372,6 +1372,9 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master, struct snd_soc_card *card = dev_get_drvdata(dev); struct vc4_hdmi *vc4_hdmi = snd_soc_card_get_drvdata(card);

+ kfree(vc4_hdmi->hdmi_regset.regs); + kfree(vc4_hdmi->hd_regset.regs); + cec_unregister_adapter(vc4_hdmi->cec_adap); vc4_hdmi_connector_destroy(&vc4_hdmi->connector); vc4_hdmi_encoder_destroy(&vc4_hdmi->encoder.base.base); @@ -1399,6 +1402,9 @@ static int vc4_hdmi_dev_remove(struct platform_device *pdev) }

struct vc4_hdmi_variant bcm2835_variant = { + .registers = vc4_hdmi_fields, + .num_registers = ARRAY_SIZE(vc4_hdmi_fields), + .init_resources = vc4_hdmi_init_resources, };

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index b00d9c806428..f4c052a78802 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -21,7 +21,15 @@ to_vc4_hdmi_encoder(struct drm_encoder *encoder) return container_of(encoder, struct vc4_hdmi_encoder, base.base); }

+struct vc4_hdmi_register; + struct vc4_hdmi_variant { + /* List of the registers available on that variant */ + const struct vc4_hdmi_register *registers; + + /* Number of registers on that variant */ + unsigned int num_registers; + /* Callback to get the resources (memory region, interrupts, * clocks, etc) for that variant. */ @@ -83,9 +91,4 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) return container_of(_encoder, struct vc4_hdmi, encoder); }

-#define HDMI_READ(offset) readl(vc4_hdmi->hdmicore_regs + offset) -#define HDMI_WRITE(offset, val) writel(val, vc4_hdmi->hdmicore_regs + offset) -#define HD_READ(offset) readl(vc4_hdmi->hd_regs + offset) -#define HD_WRITE(offset, val) writel(val, vc4_hdmi->hd_regs + offset) - #endif /* _VC4_HDMI_H_ */ diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h new file mode 100644 index 000000000000..dd5cea16f71c --- /dev/null +++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h @@ -0,0 +1,244 @@ +#ifndef _VC4_HDMI_REGS_H_ +#define _VC4_HDMI_REGS_H_ + +#include "vc4_hdmi.h" + +#define VC4_MASK(high, low) ((u32)GENMASK(high, low)) +/* Using the GNU statement expression extension */ +#define VC4_SET_FIELD(value, field) \ + ({ \ + uint32_t fieldval = (value) << field##_SHIFT; \ + WARN_ON((fieldval & ~field##_MASK) != 0); \ + fieldval & field##_MASK; \ + }) + +#define VC4_HDMI_PACKET_STRIDE 0x24 + +enum vc4_hdmi_regs { + VC4_INVALID = 0, + VC4_HDMI, + VC4_HD, +}; + +enum vc4_hdmi_field { + HDMI_AUDIO_PACKET_CONFIG, + HDMI_CEC_CNTRL_1, + HDMI_CEC_CNTRL_2, + HDMI_CEC_CNTRL_3, + HDMI_CEC_CNTRL_4, + HDMI_CEC_CNTRL_5, + HDMI_CEC_CPU_MASK_STATUS, + HDMI_CEC_CPU_STATUS, + + /* + * Transmit data, first byte is low byte of the 32-bit reg. + * MSB of each byte transmitted first. + */ + HDMI_CEC_RX_DATA_1, + HDMI_CEC_RX_DATA_2, + HDMI_CEC_RX_DATA_3, + HDMI_CEC_RX_DATA_4, + HDMI_CEC_TX_DATA_1, + HDMI_CEC_TX_DATA_2, + HDMI_CEC_TX_DATA_3, + HDMI_CEC_TX_DATA_4, + HDMI_CORE_REV, + HDMI_CRP_CFG, + HDMI_CSC_12_11, + HDMI_CSC_14_13, + HDMI_CSC_22_21, + HDMI_CSC_24_23, + HDMI_CSC_32_31, + HDMI_CSC_34_33, + HDMI_CSC_CTL, + + /* + * 20-bit fields containing CTS values to be transmitted if + * !EXTERNAL_CTS_EN + */ + HDMI_CTS_0, + HDMI_CTS_1, + HDMI_FIFO_CTL, + HDMI_FRAME_COUNT, + HDMI_HORZA, + HDMI_HORZB, + HDMI_HOTPLUG, + HDMI_HOTPLUG_INT, + + /* + * 3 bits per field, where each field maps from that + * corresponding MAI bus channel to the given HDMI channel. + */ + HDMI_MAI_CHANNEL_MAP, + HDMI_MAI_CONFIG, + HDMI_MAI_CTL, + + /* + * Register for DMAing in audio data to be transported over + * the MAI bus to the Falcon core. + */ + HDMI_MAI_DATA, + + /* Format header to be placed on the MAI data. Unused. */ + HDMI_MAI_FMT, + + /* Last received format word on the MAI bus. */ + HDMI_MAI_FORMAT, + HDMI_MAI_SMP, + HDMI_MAI_THR, + HDMI_M_CTL, + HDMI_RAM_PACKET_CONFIG, + HDMI_RAM_PACKET_START, + HDMI_RAM_PACKET_STATUS, + HDMI_SCHEDULER_CONTROL, + HDMI_SW_RESET_CONTROL, + HDMI_TX_PHY_CTL_0, + HDMI_TX_PHY_RESET_CTL, + HDMI_VERTA0, + HDMI_VERTA1, + HDMI_VERTB0, + HDMI_VERTB1, + HDMI_VID_CTL, +}; + +struct vc4_hdmi_register { + char *name; + enum vc4_hdmi_regs reg; + unsigned int offset; +}; + +#define _VC4_REG(_base, _reg, _offset) \ + [_reg] = { \ + .name = #_reg, \ + .reg = _base, \ + .offset = _offset, \ + } + +#define VC4_HD_REG(reg, offset) _VC4_REG(VC4_HD, reg, offset) +#define VC4_HDMI_REG(reg, offset) _VC4_REG(VC4_HDMI, reg, offset) + +static const struct vc4_hdmi_register vc4_hdmi_fields[] = { + VC4_HD_REG(HDMI_M_CTL, 0x000c), + VC4_HD_REG(HDMI_MAI_CTL, 0x0014), + VC4_HD_REG(HDMI_MAI_THR, 0x0018), + VC4_HD_REG(HDMI_MAI_FMT, 0x001c), + VC4_HD_REG(HDMI_MAI_DATA, 0x0020), + VC4_HD_REG(HDMI_MAI_SMP, 0x002c), + VC4_HD_REG(HDMI_VID_CTL, 0x0038), + VC4_HD_REG(HDMI_CSC_CTL, 0x0040), + VC4_HD_REG(HDMI_CSC_12_11, 0x0044), + VC4_HD_REG(HDMI_CSC_14_13, 0x0048), + VC4_HD_REG(HDMI_CSC_22_21, 0x004c), + VC4_HD_REG(HDMI_CSC_24_23, 0x0050), + VC4_HD_REG(HDMI_CSC_32_31, 0x0054), + VC4_HD_REG(HDMI_CSC_34_33, 0x0058), + VC4_HD_REG(HDMI_FRAME_COUNT, 0x0068), + + VC4_HDMI_REG(HDMI_CORE_REV, 0x0000), + VC4_HDMI_REG(HDMI_SW_RESET_CONTROL, 0x0004), + VC4_HDMI_REG(HDMI_HOTPLUG_INT, 0x0008), + VC4_HDMI_REG(HDMI_HOTPLUG, 0x000c), + VC4_HDMI_REG(HDMI_FIFO_CTL, 0x005c), + VC4_HDMI_REG(HDMI_MAI_CHANNEL_MAP, 0x0090), + VC4_HDMI_REG(HDMI_MAI_CONFIG, 0x0094), + VC4_HDMI_REG(HDMI_MAI_FORMAT, 0x0098), + VC4_HDMI_REG(HDMI_AUDIO_PACKET_CONFIG, 0x009c), + VC4_HDMI_REG(HDMI_RAM_PACKET_CONFIG, 0x00a0), + VC4_HDMI_REG(HDMI_RAM_PACKET_STATUS, 0x00a4), + VC4_HDMI_REG(HDMI_CRP_CFG, 0x00a8), + VC4_HDMI_REG(HDMI_CTS_0, 0x00ac), + VC4_HDMI_REG(HDMI_CTS_1, 0x00b0), + VC4_HDMI_REG(HDMI_SCHEDULER_CONTROL, 0x00c0), + VC4_HDMI_REG(HDMI_HORZA, 0x00c4), + VC4_HDMI_REG(HDMI_HORZB, 0x00c8), + VC4_HDMI_REG(HDMI_VERTA0, 0x00cc), + VC4_HDMI_REG(HDMI_VERTB0, 0x00d0), + VC4_HDMI_REG(HDMI_VERTA1, 0x00d4), + VC4_HDMI_REG(HDMI_VERTB1, 0x00d8), + VC4_HDMI_REG(HDMI_CEC_CNTRL_1, 0x00e8), + VC4_HDMI_REG(HDMI_CEC_CNTRL_2, 0x00ec), + VC4_HDMI_REG(HDMI_CEC_CNTRL_3, 0x00f0), + VC4_HDMI_REG(HDMI_CEC_CNTRL_4, 0x00f4), + VC4_HDMI_REG(HDMI_CEC_CNTRL_5, 0x00f8), + VC4_HDMI_REG(HDMI_CEC_TX_DATA_1, 0x00fc), + VC4_HDMI_REG(HDMI_CEC_TX_DATA_2, 0x0100), + VC4_HDMI_REG(HDMI_CEC_TX_DATA_3, 0x0104), + VC4_HDMI_REG(HDMI_CEC_TX_DATA_4, 0x0108), + VC4_HDMI_REG(HDMI_CEC_RX_DATA_1, 0x010c), + VC4_HDMI_REG(HDMI_CEC_RX_DATA_2, 0x0110), + VC4_HDMI_REG(HDMI_CEC_RX_DATA_3, 0x0114), + VC4_HDMI_REG(HDMI_CEC_RX_DATA_4, 0x0118), + VC4_HDMI_REG(HDMI_TX_PHY_RESET_CTL, 0x02c0), + VC4_HDMI_REG(HDMI_TX_PHY_CTL_0, 0x02c4), + VC4_HDMI_REG(HDMI_CEC_CPU_STATUS, 0x0340), + VC4_HDMI_REG(HDMI_CEC_CPU_MASK_STATUS, 0x034c), + VC4_HDMI_REG(HDMI_RAM_PACKET_START, 0x0400), +}; + +static inline +void __iomem *__vc4_hdmi_get_field_base(struct vc4_hdmi *hdmi, + enum vc4_hdmi_regs reg) +{ + switch (reg) { + case VC4_HD: + return hdmi->hd_regs; + + case VC4_HDMI: + return hdmi->hdmicore_regs; + + default: + return NULL; + } + + return NULL; +} + +static inline u32 vc4_hdmi_read(struct vc4_hdmi *hdmi, + enum vc4_hdmi_regs reg) +{ + const struct vc4_hdmi_register *field; + const struct vc4_hdmi_variant *variant = hdmi->variant; + void __iomem *base; + + if (reg > variant->num_registers) { + dev_warn(&hdmi->pdev->dev, + "Invalid register ID %u\n", reg); + return 0; + } + + field = &variant->registers[reg]; + base = __vc4_hdmi_get_field_base(hdmi, field->reg); + if (!base) { + dev_warn(&hdmi->pdev->dev, + "Unknown register ID %u\n", reg); + return 0; + } + + return readl(base + field->offset); +} +#define HDMI_READ(reg) vc4_hdmi_read(vc4_hdmi, reg) + +static inline void vc4_hdmi_write(struct vc4_hdmi *hdmi, + enum vc4_hdmi_regs reg, + u32 value) +{ + const struct vc4_hdmi_register *field; + const struct vc4_hdmi_variant *variant = hdmi->variant; + void __iomem *base; + + if (reg > variant->num_registers) { + dev_warn(&hdmi->pdev->dev, + "Invalid register ID %u\n", reg); + return; + } + + field = &variant->registers[reg]; + base = __vc4_hdmi_get_field_base(hdmi, field->reg); + if (!base) + return; + + writel(value, base + field->offset); +} +#define HDMI_WRITE(reg, val) vc4_hdmi_write(vc4_hdmi, reg, val) + +#endif /* _VC4_HDMI_REGS_H_ */ diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index 35279b118d41..5a3ee2030cff 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -493,32 +493,16 @@

#define SCALER5_DLIST_START 0x00004000

-#define VC4_HDMI_CORE_REV 0x000 - -#define VC4_HDMI_SW_RESET_CONTROL 0x004 # define VC4_HDMI_SW_RESET_FORMAT_DETECT BIT(1) # define VC4_HDMI_SW_RESET_HDMI BIT(0)

-#define VC4_HDMI_HOTPLUG_INT 0x008 - -#define VC4_HDMI_HOTPLUG 0x00c # define VC4_HDMI_HOTPLUG_CONNECTED BIT(0)

-/* 3 bits per field, where each field maps from that corresponding MAI - * bus channel to the given HDMI channel. - */ -#define VC4_HDMI_MAI_CHANNEL_MAP 0x090 - -#define VC4_HDMI_MAI_CONFIG 0x094 # define VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE BIT(27) # define VC4_HDMI_MAI_CONFIG_BIT_REVERSE BIT(26) # define VC4_HDMI_MAI_CHANNEL_MASK_MASK VC4_MASK(15, 0) # define VC4_HDMI_MAI_CHANNEL_MASK_SHIFT 0

-/* Last received format word on the MAI bus. */ -#define VC4_HDMI_MAI_FORMAT 0x098 - -#define VC4_HDMI_AUDIO_PACKET_CONFIG 0x09c # define VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT BIT(29) # define VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_INACTIVE_CHANNELS BIT(24) # define VC4_HDMI_AUDIO_PACKET_FORCE_SAMPLE_PRESENT BIT(19) @@ -532,12 +516,8 @@ # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_MASK VC4_MASK(7, 0) # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_SHIFT 0

-#define VC4_HDMI_RAM_PACKET_CONFIG 0x0a0 # define VC4_HDMI_RAM_PACKET_ENABLE BIT(16)

-#define VC4_HDMI_RAM_PACKET_STATUS 0x0a4 - -#define VC4_HDMI_CRP_CFG 0x0a8 /* When set, the CTS_PERIOD counts based on MAI bus sync pulse instead * of pixel clock. */ @@ -551,23 +531,12 @@ # define VC4_HDMI_CRP_CFG_N_MASK VC4_MASK(19, 0) # define VC4_HDMI_CRP_CFG_N_SHIFT 0

-/* 20-bit fields containing CTS values to be transmitted if !EXTERNAL_CTS_EN */ -#define VC4_HDMI_CTS_0 0x0ac -#define VC4_HDMI_CTS_1 0x0b0 -/* 20-bit fields containing number of clocks to send CTS0/1 before - * switching to the other one. - */ -#define VC4_HDMI_CTS_PERIOD_0 0x0b4 -#define VC4_HDMI_CTS_PERIOD_1 0x0b8 - -#define VC4_HDMI_HORZA 0x0c4 # define VC4_HDMI_HORZA_VPOS BIT(14) # define VC4_HDMI_HORZA_HPOS BIT(13) /* Horizontal active pixels (hdisplay). */ # define VC4_HDMI_HORZA_HAP_MASK VC4_MASK(12, 0) # define VC4_HDMI_HORZA_HAP_SHIFT 0

-#define VC4_HDMI_HORZB 0x0c8 /* Horizontal pack porch (htotal - hsync_end). */ # define VC4_HDMI_HORZB_HBP_MASK VC4_MASK(29, 20) # define VC4_HDMI_HORZB_HBP_SHIFT 20 @@ -578,7 +547,6 @@ # define VC4_HDMI_HORZB_HFP_MASK VC4_MASK(9, 0) # define VC4_HDMI_HORZB_HFP_SHIFT 0

-#define VC4_HDMI_FIFO_CTL 0x05c # define VC4_HDMI_FIFO_CTL_RECENTER_DONE BIT(14) # define VC4_HDMI_FIFO_CTL_USE_EMPTY BIT(13) # define VC4_HDMI_FIFO_CTL_ON_VB BIT(7) @@ -591,15 +559,12 @@ # define VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N BIT(0) # define VC4_HDMI_FIFO_VALID_WRITE_MASK 0xefff

-#define VC4_HDMI_SCHEDULER_CONTROL 0x0c0 # define VC4_HDMI_SCHEDULER_CONTROL_MANUAL_FORMAT BIT(15) # define VC4_HDMI_SCHEDULER_CONTROL_IGNORE_VSYNC_PREDICTS BIT(5) # define VC4_HDMI_SCHEDULER_CONTROL_VERT_ALWAYS_KEEPOUT BIT(3) # define VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE BIT(1) # define VC4_HDMI_SCHEDULER_CONTROL_MODE_HDMI BIT(0)

-#define VC4_HDMI_VERTA0 0x0cc -#define VC4_HDMI_VERTA1 0x0d4 /* Vertical sync pulse (vsync_end - vsync_start). */ # define VC4_HDMI_VERTA_VSP_MASK VC4_MASK(24, 20) # define VC4_HDMI_VERTA_VSP_SHIFT 20 @@ -610,8 +575,6 @@ # define VC4_HDMI_VERTA_VAL_MASK VC4_MASK(12, 0) # define VC4_HDMI_VERTA_VAL_SHIFT 0

-#define VC4_HDMI_VERTB0 0x0d0 -#define VC4_HDMI_VERTB1 0x0d8 /* Vertical sync pulse offset (for interlaced) */ # define VC4_HDMI_VERTB_VSPO_MASK VC4_MASK(21, 9) # define VC4_HDMI_VERTB_VSPO_SHIFT 9 @@ -619,7 +582,6 @@ # define VC4_HDMI_VERTB_VBP_MASK VC4_MASK(8, 0) # define VC4_HDMI_VERTB_VBP_SHIFT 0

-#define VC4_HDMI_CEC_CNTRL_1 0x0e8 /* Set when the transmission has ended. */ # define VC4_HDMI_CEC_TX_EOM BIT(31) /* If set, transmission was acked on the 1st or 2nd attempt (only one @@ -660,7 +622,6 @@ /* Set these fields to how many bit clock cycles get to that many * microseconds. */ -#define VC4_HDMI_CEC_CNTRL_2 0x0ec # define VC4_HDMI_CEC_CNT_TO_1500_US_MASK VC4_MASK(30, 24) # define VC4_HDMI_CEC_CNT_TO_1500_US_SHIFT 24 # define VC4_HDMI_CEC_CNT_TO_1300_US_MASK VC4_MASK(23, 17) @@ -672,7 +633,6 @@ # define VC4_HDMI_CEC_CNT_TO_400_US_MASK VC4_MASK(4, 0) # define VC4_HDMI_CEC_CNT_TO_400_US_SHIFT 0

-#define VC4_HDMI_CEC_CNTRL_3 0x0f0 # define VC4_HDMI_CEC_CNT_TO_2750_US_MASK VC4_MASK(31, 24) # define VC4_HDMI_CEC_CNT_TO_2750_US_SHIFT 24 # define VC4_HDMI_CEC_CNT_TO_2400_US_MASK VC4_MASK(23, 16) @@ -682,7 +642,6 @@ # define VC4_HDMI_CEC_CNT_TO_1700_US_MASK VC4_MASK(7, 0) # define VC4_HDMI_CEC_CNT_TO_1700_US_SHIFT 0

-#define VC4_HDMI_CEC_CNTRL_4 0x0f4 # define VC4_HDMI_CEC_CNT_TO_4300_US_MASK VC4_MASK(31, 24) # define VC4_HDMI_CEC_CNT_TO_4300_US_SHIFT 24 # define VC4_HDMI_CEC_CNT_TO_3900_US_MASK VC4_MASK(23, 16) @@ -692,7 +651,6 @@ # define VC4_HDMI_CEC_CNT_TO_3500_US_MASK VC4_MASK(7, 0) # define VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT 0

-#define VC4_HDMI_CEC_CNTRL_5 0x0f8 # define VC4_HDMI_CEC_TX_SW_RESET BIT(27) # define VC4_HDMI_CEC_RX_SW_RESET BIT(26) # define VC4_HDMI_CEC_PAD_SW_RESET BIT(25) @@ -705,39 +663,11 @@ # define VC4_HDMI_CEC_CNT_TO_4500_US_MASK VC4_MASK(7, 0) # define VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT 0

-/* Transmit data, first byte is low byte of the 32-bit reg. MSB of - * each byte transmitted first. - */ -#define VC4_HDMI_CEC_TX_DATA_1 0x0fc -#define VC4_HDMI_CEC_TX_DATA_2 0x100 -#define VC4_HDMI_CEC_TX_DATA_3 0x104 -#define VC4_HDMI_CEC_TX_DATA_4 0x108 -#define VC4_HDMI_CEC_RX_DATA_1 0x10c -#define VC4_HDMI_CEC_RX_DATA_2 0x110 -#define VC4_HDMI_CEC_RX_DATA_3 0x114 -#define VC4_HDMI_CEC_RX_DATA_4 0x118 - -#define VC4_HDMI_TX_PHY_RESET_CTL 0x2c0 - -#define VC4_HDMI_TX_PHY_CTL0 0x2c4 # define VC4_HDMI_TX_PHY_RNG_PWRDN BIT(25)

-/* Interrupt status bits */ -#define VC4_HDMI_CPU_STATUS 0x340 -#define VC4_HDMI_CPU_SET 0x344 -#define VC4_HDMI_CPU_CLEAR 0x348 # define VC4_HDMI_CPU_CEC BIT(6) # define VC4_HDMI_CPU_HOTPLUG BIT(0)

-#define VC4_HDMI_CPU_MASK_STATUS 0x34c -#define VC4_HDMI_CPU_MASK_SET 0x350 -#define VC4_HDMI_CPU_MASK_CLEAR 0x354 - -#define VC4_HDMI_GCP(x) (0x400 + ((x) * 0x4)) -#define VC4_HDMI_RAM_PACKET(x) (0x400 + ((x) * 0x24)) -#define VC4_HDMI_PACKET_STRIDE 0x24 - -#define VC4_HD_M_CTL 0x00c /* Debug: Current receive value on the CEC pad. */ # define VC4_HD_CECRXD BIT(9) /* Debug: Override CEC output to 0. */ @@ -747,7 +677,6 @@ # define VC4_HD_M_SW_RST BIT(2) # define VC4_HD_M_ENABLE BIT(0)

-#define VC4_HD_MAI_CTL 0x014 /* Set when audio stream is received at a slower rate than the * sampling period, so MAI fifo goes empty. Write 1 to clear. */ @@ -772,7 +701,6 @@ /* Single-shot reset bit. Read value is undefined. */ # define VC4_HD_MAI_CTL_RESET BIT(0)

-#define VC4_HD_MAI_THR 0x018 # define VC4_HD_MAI_THR_PANICHIGH_MASK VC4_MASK(29, 24) # define VC4_HD_MAI_THR_PANICHIGH_SHIFT 24 # define VC4_HD_MAI_THR_PANICLOW_MASK VC4_MASK(21, 16) @@ -782,31 +710,20 @@ # define VC4_HD_MAI_THR_DREQLOW_MASK VC4_MASK(5, 0) # define VC4_HD_MAI_THR_DREQLOW_SHIFT 0

-/* Format header to be placed on the MAI data. Unused. */ -#define VC4_HD_MAI_FMT 0x01c - -/* Register for DMAing in audio data to be transported over the MAI - * bus to the Falcon core. - */ -#define VC4_HD_MAI_DATA 0x020 - /* Divider from HDMI HSM clock to MAI serial clock. Sampling period * converges to N / (M + 1) cycles. */ -#define VC4_HD_MAI_SMP 0x02c # define VC4_HD_MAI_SMP_N_MASK VC4_MASK(31, 8) # define VC4_HD_MAI_SMP_N_SHIFT 8 # define VC4_HD_MAI_SMP_M_MASK VC4_MASK(7, 0) # define VC4_HD_MAI_SMP_M_SHIFT 0

-#define VC4_HD_VID_CTL 0x038 # define VC4_HD_VID_CTL_ENABLE BIT(31) # define VC4_HD_VID_CTL_UNDERFLOW_ENABLE BIT(30) # define VC4_HD_VID_CTL_FRAME_COUNTER_RESET BIT(29) # define VC4_HD_VID_CTL_VSYNC_LOW BIT(28) # define VC4_HD_VID_CTL_HSYNC_LOW BIT(27)

-#define VC4_HD_CSC_CTL 0x040 # define VC4_HD_CSC_CTL_ORDER_MASK VC4_MASK(7, 5) # define VC4_HD_CSC_CTL_ORDER_SHIFT 5 # define VC4_HD_CSC_CTL_ORDER_RGB 0 @@ -824,15 +741,6 @@ # define VC4_HD_CSC_CTL_RGB2YCC BIT(1) # define VC4_HD_CSC_CTL_ENABLE BIT(0)

-#define VC4_HD_CSC_12_11 0x044 -#define VC4_HD_CSC_14_13 0x048 -#define VC4_HD_CSC_22_21 0x04c -#define VC4_HD_CSC_24_23 0x050 -#define VC4_HD_CSC_32_31 0x054 -#define VC4_HD_CSC_34_33 0x058 - -#define VC4_HD_FRAME_COUNT 0x068 - /* HVS display list information. */ #define HVS_BOOTLOADER_DLIST_END 32

The HDMI PHY in the BCM2711 HDMI controller is significantly more complicated to setup than in the older BCM283x SoCs.

Let's add hooks to enable and disable the PHY.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/Makefile | 1 + drivers/gpu/drm/vc4/vc4_hdmi.c | 14 +++++++------- drivers/gpu/drm/vc4/vc4_hdmi.h | 14 ++++++++++++++ drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 25 +++++++++++++++++++++++++ 4 files changed, 47 insertions(+), 7 deletions(-) create mode 100644 drivers/gpu/drm/vc4/vc4_hdmi_phy.c

diff --git a/drivers/gpu/drm/vc4/Makefile b/drivers/gpu/drm/vc4/Makefile index b303703bc7f3..d0163e18e9ca 100644 --- a/drivers/gpu/drm/vc4/Makefile +++ b/drivers/gpu/drm/vc4/Makefile @@ -12,6 +12,7 @@ vc4-y := \ vc4_kms.o \ vc4_gem.o \ vc4_hdmi.o \ + vc4_hdmi_phy.o \ vc4_vec.o \ vc4_hvs.o \ vc4_irq.o \ diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 29e94eee9f23..14c5ce4e7010 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -323,7 +323,9 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder)

HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, 0);

- HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); + if (vc4_hdmi->variant->phy_disable) + vc4_hdmi->variant->phy_disable(vc4_hdmi); + HDMI_WRITE(HDMI_VID_CTL, HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);

@@ -383,12 +385,8 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) if (vc4_hdmi->variant->reset) vc4_hdmi->variant->reset(vc4_hdmi);

- /* PHY should be in reset, like - * vc4_hdmi_encoder_disable() does. - */ - HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); - - HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0); + if (vc4_hdmi->variant->phy_init) + vc4_hdmi->variant->phy_init(vc4_hdmi, mode);

if (debug_dump_regs) { struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev); @@ -1413,6 +1411,8 @@ struct vc4_hdmi_variant bcm2835_variant = {

.init_resources = vc4_hdmi_init_resources, .reset = vc4_hdmi_reset, + .phy_init = vc4_hdmi_phy_init, + .phy_disable = vc4_hdmi_phy_disable, };

static const struct of_device_id vc4_hdmi_dt_match[] = { diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 270397c9e800..39ae5273f36b 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -21,6 +21,9 @@ to_vc4_hdmi_encoder(struct drm_encoder *encoder) return container_of(encoder, struct vc4_hdmi_encoder, base.base); }

+struct drm_display_mode; + +struct vc4_hdmi; struct vc4_hdmi_register;

struct vc4_hdmi_variant { @@ -37,6 +40,13 @@ struct vc4_hdmi_variant {

/* Callback to reset the HDMI block */ void (*reset)(struct vc4_hdmi *vc4_hdmi); + + /* Callback to initialize the PHY according to the mode */ + void (*phy_init)(struct vc4_hdmi *vc4_hdmi, + struct drm_display_mode *mode); + + /* Callback to disable the PHY */ + void (*phy_disable)(struct vc4_hdmi *vc4_hdmi); };

/* HDMI audio information */ @@ -94,4 +104,8 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) return container_of(_encoder, struct vc4_hdmi, encoder); }

+void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, + struct drm_display_mode *mode); +void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi); + #endif /* _VC4_HDMI_H_ */ diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c new file mode 100644 index 000000000000..26d6ee08edcf --- /dev/null +++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2015 Broadcom + * Copyright (c) 2014 The Linux Foundation. All rights reserved. + * Copyright (C) 2013 Red Hat + * Author: Rob Clark robdclark@gmail.com + */ + +#include "vc4_hdmi.h" +#include "vc4_hdmi_regs.h" + +void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode) +{ + /* PHY should be in reset, like + * vc4_hdmi_encoder_disable() does. + */ + + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0); +} + +void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi) +{ + HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); +}

Similarly to the previous patches, the CSC setup is slightly different in the BCM2711 than in the previous generations. Let's add a callback for it.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 71 ++++++++++++++++++++--------------- drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +- 2 files changed, 45 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 50d69c74c5c4..405019118a20 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -336,6 +336,41 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) DRM_ERROR("Failed to release power domain: %d\n", ret); }

+static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable) +{ + u32 csc_ctl; + + csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, + VC4_HD_CSC_CTL_ORDER); + + if (enable) { + /* CEA VICs other than #1 requre limited range RGB + * output unless overridden by an AVI infoframe. + * Apply a colorspace conversion to squash 0-255 down + * to 16-235. The matrix here is: + * + * [ 0 0 0.8594 16] + * [ 0 0.8594 0 16] + * [ 0.8594 0 0 16] + * [ 0 0 0 1] + */ + csc_ctl |= VC4_HD_CSC_CTL_ENABLE; + csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; + csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, + VC4_HD_CSC_CTL_MODE); + + HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); + } + + /* The RGB order applies even when CSC is disabled. */ + HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); +} + static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) { struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; @@ -359,7 +394,6 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) mode->crtc_vsync_end - interlaced, VC4_HDMI_VERTB_VBP)); - u32 csc_ctl; int ret;

ret = pm_runtime_get_sync(&vc4_hdmi->pdev->dev); @@ -430,41 +464,19 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) | (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));

- csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, - VC4_HD_CSC_CTL_ORDER); - if (vc4_encoder->hdmi_monitor && - drm_default_rgb_quant_range(mode) == - HDMI_QUANTIZATION_RANGE_LIMITED) { - /* CEA VICs other than #1 requre limited range RGB - * output unless overridden by an AVI infoframe. - * Apply a colorspace conversion to squash 0-255 down - * to 16-235. The matrix here is: - * - * [ 0 0 0.8594 16] - * [ 0 0.8594 0 16] - * [ 0.8594 0 0 16] - * [ 0 0 0 1] - */ - csc_ctl |= VC4_HD_CSC_CTL_ENABLE; - csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; - csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, - VC4_HD_CSC_CTL_MODE); + drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED) { + if (vc4_hdmi->variant->csc_setup) + vc4_hdmi->variant->csc_setup(vc4_hdmi, true);

- HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); - HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); - HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); vc4_encoder->limited_rgb_range = true; } else { + if (vc4_hdmi->variant->csc_setup) + vc4_hdmi->variant->csc_setup(vc4_hdmi, false); + vc4_encoder->limited_rgb_range = false; }

- /* The RGB order applies even when CSC is disabled. */ - HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); - HDMI_WRITE(HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N);

if (debug_dump_regs) { @@ -1411,6 +1423,7 @@ struct vc4_hdmi_variant bcm2835_variant = { .num_registers = ARRAY_SIZE(vc4_hdmi_fields),

.init_resources = vc4_hdmi_init_resources, + .csc_setup = vc4_hdmi_csc_setup, .reset = vc4_hdmi_reset, .phy_init = vc4_hdmi_phy_init, .phy_disable = vc4_hdmi_phy_disable, diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 9ae4d2c5a4f0..22669e07b22e 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -41,6 +41,9 @@ struct vc4_hdmi_variant { /* Callback to reset the HDMI block */ void (*reset)(struct vc4_hdmi *vc4_hdmi);

+ /* Callback to enable / disable the CSC */ + void (*csc_setup)(struct vc4_hdmi *vc4_hdmi, bool enable); + /* Callback to initialize the PHY according to the mode */ void (*phy_init)(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode);

Some operations will need us to have the raw ID of the HDMI controller in the BCM2711, such as the encoder type to register, the name of the debugfs files, etc.

Let's add it to our variant structure.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 3 +-- drivers/gpu/drm/vc4/vc4_hdmi.h | 5 +++++ 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 98198ece8db8..fffd1ce7cf90 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1252,11 +1252,10 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL); if (!vc4_hdmi) return -ENOMEM; - vc4_hdmi->pdev = pdev; variant = of_device_get_match_data(dev); vc4_hdmi->variant = variant; - vc4_hdmi->encoder.base.type = VC4_ENCODER_TYPE_HDMI0; + vc4_hdmi->encoder.base.type = variant->id ? VC4_ENCODER_TYPE_HDMI1 : VC4_ENCODER_TYPE_HDMI0; encoder = &vc4_hdmi->encoder.base.base;

ret = variant->init_resources(vc4_hdmi); diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 4a67d62aef53..4d3117de383a 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -27,6 +27,11 @@ struct vc4_hdmi; struct vc4_hdmi_register;

struct vc4_hdmi_variant { + /* On devices that have multiple, different instances (like + * the BCM2711), which instance is that variant useful for. + */ + unsigned int id; + /* List of the registers available on that variant */ const struct vc4_hdmi_register *registers;

The BCM2711 audio support doesn't work yet, so let's add a boolean to indicate whether or not it's supported, and only register a sound card if that boolean is set.

Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++++ drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +++ 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 25fbe2fb72fb..a98661c12c24 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -930,6 +930,9 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi) const __be32 *addr; int ret;

+ if (!vc4_hdmi->variant->audio_available) + return 0; + if (!of_find_property(dev->of_node, "dmas", NULL)) { dev_warn(dev, "'dmas' DT property is missing, no HDMI audio\n"); @@ -1429,6 +1432,7 @@ static int vc4_hdmi_dev_remove(struct platform_device *pdev) }

struct vc4_hdmi_variant bcm2835_variant = { + .audio_available = true, .registers = vc4_hdmi_fields, .num_registers = ARRAY_SIZE(vc4_hdmi_fields),

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 4d3117de383a..f41116507156 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -32,6 +32,9 @@ struct vc4_hdmi_variant { */ unsigned int id;

+ /* Set to true when the audio support is available */ + bool audio_available; + /* List of the registers available on that variant */ const struct vc4_hdmi_register *registers;