dri-devel October 2019

dri-devel@lists.freedesktop.org

359 participants
1833 discussions

[pull] ttm drm-fixes-5.4
by Christian König 11 Oct '19

11 Oct '19

Hi Dave, Daniel, we had some problems this cycle sending out TTM fixes because of lack of time to rebase amd-staging-drm-next. Because of this Alex and I decided that I'm going to send out TTM pull requests separately now. So this is the first small bunch of fixes for 5.4. The following changes since commit 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c: Linux 5.4-rc1 (2019-09-30 10:35:40 -0700) are available in the Git repository at: https://gitlab.freedesktop.org/ckoenig/linux-drm.git drm-ttm-fixes for you to fetch changes up to 3eefcfe9a644be4409691b44c3b2d629d177fb9a: drm/ttm: Restore ttm prefaulting (2019-10-02 15:57:34 +0200) ---------------------------------------------------------------- Christian König (1): drm/ttm: fix busy reference in ttm_mem_evict_first Thomas Hellstrom (1): drm/ttm: Restore ttm prefaulting drivers/gpu/drm/ttm/ttm_bo.c | 4 ++-- drivers/gpu/drm/ttm/ttm_bo_vm.c | 16 +++++++--------- 2 files changed, 9 insertions(+), 11 deletions(-) Regards, Christian.

6 8

[PATCH v2] drm: bridge: adv7511: Enable SPDIF DAI
by Bogdan Togorean 11 Oct '19

11 Oct '19

ADV7511 support I2S or SPDIF as audio input interfaces. This commit enable support for SPDIF. Signed-off-by: Bogdan Togorean <bogdan.togorean(a)analog.com> --- Changes in v2: - add forgotten break statement drivers/gpu/drm/bridge/adv7511/adv7511_audio.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c index a428185be2c1..1e9b128d229b 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c @@ -119,6 +119,9 @@ int adv7511_hdmi_hw_params(struct device *dev, void *data, audio_source = ADV7511_AUDIO_SOURCE_I2S; i2s_format = ADV7511_I2S_FORMAT_LEFT_J; break; + case HDMI_SPDIF: + audio_source = ADV7511_AUDIO_SOURCE_SPDIF; + break; default: return -EINVAL; } @@ -175,11 +178,21 @@ static int audio_startup(struct device *dev, void *data) /* use Audio infoframe updated info */ regmap_update_bits(adv7511->regmap, ADV7511_REG_GC(1), BIT(5), 0); + /* enable SPDIF receiver */ + if (adv7511->audio_source == ADV7511_AUDIO_SOURCE_SPDIF) + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG, + BIT(7), BIT(7)); + return 0; } static void audio_shutdown(struct device *dev, void *data) { + struct adv7511 *adv7511 = dev_get_drvdata(dev); + + if (adv7511->audio_source == ADV7511_AUDIO_SOURCE_SPDIF) + regmap_update_bits(adv7511->regmap, ADV7511_REG_AUDIO_CONFIG, + BIT(7), 0); } static int adv7511_hdmi_i2s_get_dai_id(struct snd_soc_component *component, @@ -213,6 +226,7 @@ static const struct hdmi_codec_pdata codec_data = { .ops = &adv7511_codec_ops, .max_i2s_channels = 2, .i2s = 1, + .spdif = 1, }; int adv7511_audio_init(struct device *dev, struct adv7511 *adv7511) -- 2.23.0

2 1

[PATCH v2 0/2] Add initial support for slimport anx7625
by Xin Ji 11 Oct '19

11 Oct '19

Hi all, The following series add initial support for the Slimport ANX7625 transmitter, a ultra-low power Full-HD 4K MIPI to DP transmitter designed for portable device. This is the initial version, any mistakes, please let me know, I will fix it in the next series. Thanks, Xin Xin Ji (2): dt-bindings: drm/bridge: anx7625: MIPI to DP transmitter binding drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP bridge driver .../bindings/display/bridge/anx7625.yaml | 96 + drivers/gpu/drm/bridge/Makefile | 2 +- drivers/gpu/drm/bridge/analogix/Kconfig | 6 + drivers/gpu/drm/bridge/analogix/Makefile | 1 + drivers/gpu/drm/bridge/analogix/anx7625.c | 2155 ++++++++++++++++++++ drivers/gpu/drm/bridge/analogix/anx7625.h | 406 ++++ 6 files changed, 2665 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/display/bridge/anx7625.yaml create mode 100644 drivers/gpu/drm/bridge/analogix/anx7625.c create mode 100644 drivers/gpu/drm/bridge/analogix/anx7625.h -- 2.7.4

2 5

linux-next: build warning after merge of the drm-misc tree
by Stephen Rothwell 10 Oct '19

10 Oct '19

Hi all, After merging the drm-misc tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_atomic_get_mst_topology_state': drivers/gpu/drm/drm_dp_mst_topology.c:4187:21: warning: unused variable 'dev' [-Wunused-variable] 4187 | struct drm_device *dev = mgr->dev; | ^~~ Introduced by commit 83fa9842afe7 ("drm/dp-mst: Drop connection_mutex check") -- Cheers, Stephen Rothwell

1 0

[amdgpu] ASSERT()'s in write_i2c*retimer_setting() functions
by Gabriel C 10 Oct '19

10 Oct '19

Hello, I've built recently a new box with a Ryzen3 2200G APU. Each time I plug in an HDMI cable ( to a TV or Monitor ), or boot with HDMI connected a lot ASSERT()'s from write_i2c*retimer_setting() functions are triggered. I see the same on a Laptop with a Ryzen7 3750H with hybrid GPU configuration. Besides the noise in dmesg and the delay on boot, everything is working fine. I cannot find anything wrong or broken. Since the write errors seem to not be fatal, I think a friendly message would help more instead of flooding the dmesg with dumps while everything is working properly. Why is ASSERT() used there? I have a dmesg from the Ryzen3 box with drm.debug and a snipped from the Laptop ( not near me right now ) uploaded there: https://crazy.dev.frugalware.org/amdgpu/ Please let me know if you need more information, If needed I can upload a dmesg from the Laptop with drm.debug too. Best Regards, Gabriel C

1 0

[PATCH v2 1/8] dt-bindings: rng: exynos4-rng: Convert Exynos PRNG bindings to json-schema
by Krzysztof Kozlowski 10 Oct '19

10 Oct '19

Convert Samsung Exynos Pseudo Random Number Generator bindings to DT schema format using json-schema. Signed-off-by: Krzysztof Kozlowski <krzk(a)kernel.org> --- Changes since v1: 1. Indent example with four spaces (more readable). --- .../bindings/rng/samsung,exynos4-rng.txt | 19 --------- .../bindings/rng/samsung,exynos4-rng.yaml | 41 +++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 42 insertions(+), 20 deletions(-) delete mode 100644 Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt create mode 100644 Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt deleted file mode 100644 index a13fbdb4bd88..000000000000 --- a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt +++ /dev/null @@ -1,19 +0,0 @@ -Exynos Pseudo Random Number Generator - -Required properties: - -- compatible : One of: - - "samsung,exynos4-rng" for Exynos4210 and Exynos4412 - - "samsung,exynos5250-prng" for Exynos5250+ -- reg : Specifies base physical address and size of the registers map. -- clocks : Phandle to clock-controller plus clock-specifier pair. -- clock-names : "secss" as a clock name. - -Example: - - rng@10830400 { - compatible = "samsung,exynos4-rng"; - reg = <0x10830400 0x200>; - clocks = <&clock CLK_SSS>; - clock-names = "secss"; - }; diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml new file mode 100644 index 000000000000..2d075d6c87b6 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rng/samsung,exynos4-rng.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung Exynos SoC Pseudo Random Number Generator + +maintainers: + - Krzysztof Kozlowski <krzk(a)kernel.org> + +properties: + compatible: + enum: + - samsung,exynos4-rng # for Exynos4210 and Exynos4412 + - samsung,exynos5250-prng # for Exynos5250+ + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: secss + +required: + - compatible + - reg + - clock-names + - clocks + +examples: + - | + rng@10830400 { + compatible = "samsung,exynos4-rng"; + reg = <0x10830400 0x200>; + clocks = <&clock 255>; // CLK_SSS + clock-names = "secss"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 00969a90f94c..9cec4494b9a8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14181,7 +14181,7 @@ L: linux-crypto(a)vger.kernel.org L: linux-samsung-soc(a)vger.kernel.org S: Maintained F: drivers/crypto/exynos-rng.c -F: Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt +F: Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml SAMSUNG EXYNOS TRUE RANDOM NUMBER GENERATOR (TRNG) DRIVER M: Łukasz Stelmach <l.stelmach(a)samsung.com> -- 2.17.1

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[PATCH] drm/msm/dsi: Implement reset correctly
by Jeffrey Hugo 10 Oct '19

10 Oct '19

On msm8998, vblank timeouts are observed because the DSI controller is not reset properly, which ends up stalling the MDP. This is because the reset logic is not correct per the hardware documentation. The documentation states that after asserting reset, software should wait some time (no indication of how long), or poll the status register until it returns 0 before deasserting reset. wmb() is insufficient for this purpose since it just ensures ordering, not timing between writes. Since asserting and deasserting reset occurs on the same register, ordering is already guaranteed by the architecture, making the wmb extraneous. Since we would define a timeout for polling the status register to avoid a possible infinite loop, lets just use a static delay of 20 ms, since 16.666 ms is the time available to process one frame at 60 fps. Fixes: a689554ba6ed (drm/msm: Initial add DSI connector support) Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo(a)gmail.com> --- Rob et al, is it possible for this to go into a 5.4-rc? drivers/gpu/drm/msm/dsi/dsi_host.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 663ff9f4fac9..68ded9b4735d 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -986,7 +986,7 @@ static void dsi_sw_reset(struct msm_dsi_host *msm_host) wmb(); /* clocks need to be enabled before reset */ dsi_write(msm_host, REG_DSI_RESET, 1); - wmb(); /* make sure reset happen */ + msleep(20); /* make sure reset happen */ dsi_write(msm_host, REG_DSI_RESET, 0); } @@ -1396,7 +1396,7 @@ static void dsi_sw_reset_restore(struct msm_dsi_host *msm_host) /* dsi controller can only be reset while clocks are running */ dsi_write(msm_host, REG_DSI_RESET, 1); - wmb(); /* make sure reset happen */ + msleep(20); /* make sure reset happen */ dsi_write(msm_host, REG_DSI_RESET, 0); wmb(); /* controller out of reset */ dsi_write(msm_host, REG_DSI_CTRL, data0); -- 2.17.1

2 3

[PATCH v3 1/2] dt-bindings: pwm: Convert PWM bindings to json-schema
by Krzysztof Kozlowski 10 Oct '19

10 Oct '19

Convert generic PWM bindings to DT schema format using json-schema. The consumer bindings are split to separate file. Signed-off-by: Krzysztof Kozlowski <krzk(a)kernel.org> --- Changes since v2: 1. Change also pwm-sprd.txt Changes since v1: 1. Indent example with four spaces (more readable), 2. Change pattern for pwm nodes, 3. Remove $ref from #cells. --- .../devicetree/bindings/clock/pwm-clock.txt | 2 +- .../bindings/display/bridge/ti,sn65dsi86.txt | 2 +- .../devicetree/bindings/display/ssd1307fb.txt | 2 +- .../bindings/leds/backlight/pwm-backlight.txt | 2 +- .../devicetree/bindings/leds/leds-pwm.txt | 2 +- .../devicetree/bindings/mfd/max77693.txt | 2 +- .../bindings/pwm/atmel-hlcdc-pwm.txt | 2 +- .../devicetree/bindings/pwm/atmel-pwm.txt | 2 +- .../devicetree/bindings/pwm/atmel-tcb-pwm.txt | 2 +- .../bindings/pwm/brcm,bcm7038-pwm.txt | 2 +- .../bindings/pwm/brcm,iproc-pwm.txt | 2 +- .../devicetree/bindings/pwm/brcm,kona-pwm.txt | 2 +- .../devicetree/bindings/pwm/img-pwm.txt | 2 +- .../devicetree/bindings/pwm/imx-pwm.txt | 2 +- .../devicetree/bindings/pwm/imx-tpm-pwm.txt | 2 +- .../bindings/pwm/lpc1850-sct-pwm.txt | 2 +- .../devicetree/bindings/pwm/mxs-pwm.txt | 2 +- .../bindings/pwm/nvidia,tegra20-pwm.txt | 2 +- .../bindings/pwm/nxp,pca9685-pwm.txt | 2 +- .../devicetree/bindings/pwm/pwm-bcm2835.txt | 2 +- .../devicetree/bindings/pwm/pwm-berlin.txt | 2 +- .../bindings/pwm/pwm-consumers.yaml | 76 +++++++++++++++++++ .../devicetree/bindings/pwm/pwm-fsl-ftm.txt | 2 +- .../devicetree/bindings/pwm/pwm-hibvt.txt | 2 +- .../devicetree/bindings/pwm/pwm-lp3943.txt | 2 +- .../devicetree/bindings/pwm/pwm-mediatek.txt | 2 +- .../devicetree/bindings/pwm/pwm-meson.txt | 2 +- .../devicetree/bindings/pwm/pwm-mtk-disp.txt | 2 +- .../bindings/pwm/pwm-omap-dmtimer.txt | 2 +- .../devicetree/bindings/pwm/pwm-rockchip.txt | 2 +- .../devicetree/bindings/pwm/pwm-sifive.txt | 2 +- .../devicetree/bindings/pwm/pwm-sprd.txt | 4 +- .../devicetree/bindings/pwm/pwm-stm32-lp.txt | 2 +- .../devicetree/bindings/pwm/pwm-stm32.txt | 2 +- .../devicetree/bindings/pwm/pwm-tiecap.txt | 2 +- .../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 2 +- .../devicetree/bindings/pwm/pwm-zx.txt | 2 +- Documentation/devicetree/bindings/pwm/pwm.txt | 69 ----------------- .../devicetree/bindings/pwm/pwm.yaml | 29 +++++++ .../bindings/pwm/renesas,pwm-rcar.txt | 2 +- .../bindings/pwm/renesas,tpu-pwm.txt | 4 +- .../devicetree/bindings/pwm/spear-pwm.txt | 2 +- .../devicetree/bindings/pwm/st,stmpe-pwm.txt | 2 +- .../devicetree/bindings/pwm/ti,twl-pwm.txt | 2 +- .../devicetree/bindings/pwm/ti,twl-pwmled.txt | 2 +- .../devicetree/bindings/pwm/vt8500-pwm.txt | 2 +- .../bindings/regulator/pwm-regulator.txt | 2 +- .../devicetree/bindings/timer/ingenic,tcu.txt | 2 +- 48 files changed, 152 insertions(+), 116 deletions(-) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-consumers.yaml delete mode 100644 Documentation/devicetree/bindings/pwm/pwm.txt create mode 100644 Documentation/devicetree/bindings/pwm/pwm.yaml diff --git a/Documentation/devicetree/bindings/clock/pwm-clock.txt b/Documentation/devicetree/bindings/clock/pwm-clock.txt index 83db876b3b90..8a791b6d76a9 100644 --- a/Documentation/devicetree/bindings/clock/pwm-clock.txt +++ b/Documentation/devicetree/bindings/clock/pwm-clock.txt @@ -3,7 +3,7 @@ Binding for an external clock signal driven by a PWM pin. This binding uses the common clock binding[1] and the common PWM binding[2]. [1] Documentation/devicetree/bindings/clock/clock-bindings.txt -[2] Documentation/devicetree/bindings/pwm/pwm.txt +[2] Documentation/devicetree/bindings/pwm/pwm-consumers.yaml Required properties: - compatible : shall be "pwm-clock". diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt index 0a3fbb53a16e..8ec4a7f2623a 100644 --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt @@ -21,7 +21,7 @@ Optional properties: - #gpio-cells : Should be two. The first cell is the pin number and the second cell is used to specify flags. See ../../gpio/gpio.txt for more information. -- #pwm-cells : Should be one. See ../../pwm/pwm.txt for description of +- #pwm-cells : Should be one. See ../../pwm/pwm.yaml for description of the cell formats. - clock-names: should be "refclk" diff --git a/Documentation/devicetree/bindings/display/ssd1307fb.txt b/Documentation/devicetree/bindings/display/ssd1307fb.txt index 27333b9551b3..da9b28153a3c 100644 --- a/Documentation/devicetree/bindings/display/ssd1307fb.txt +++ b/Documentation/devicetree/bindings/display/ssd1307fb.txt @@ -37,7 +37,7 @@ Optional properties: - solomon,area-color-enable: Display uses color mode - solomon,low-power. Display runs in low power mode -[0]: Documentation/devicetree/bindings/pwm/pwm.txt +[0]: Documentation/devicetree/bindings/pwm/pwm-consumers.yaml Examples: ssd1307: oled@3c { diff --git a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt index 64fa2fbd98c9..8dbbadd3af96 100644 --- a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt +++ b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt @@ -28,7 +28,7 @@ Optional properties: having to list out every possible value in the brightness-level array. -[0]: Documentation/devicetree/bindings/pwm/pwm.txt +[0]: Documentation/devicetree/bindings/pwm/pwm-consumers.yaml [1]: Documentation/devicetree/bindings/gpio/gpio.txt Example: diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.txt b/Documentation/devicetree/bindings/leds/leds-pwm.txt index 6c6583c35f2f..aeaa250668d5 100644 --- a/Documentation/devicetree/bindings/leds/leds-pwm.txt +++ b/Documentation/devicetree/bindings/leds/leds-pwm.txt @@ -11,7 +11,7 @@ LED sub-node properties: specify the period time to be used: <&phandle id period_ns>; - pwm-names : (optional) Name to be used by the PWM subsystem for the PWM device For the pwms and pwm-names property please refer to: - Documentation/devicetree/bindings/pwm/pwm.txt + Documentation/devicetree/bindings/pwm/pwm-consumers.yaml - max-brightness : Maximum brightness possible for the LED - active-low : (optional) For PWMs where the LED is wired to supply rather than ground. diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt index a3c60a7a3be1..1e6318695eb2 100644 --- a/Documentation/devicetree/bindings/mfd/max77693.txt +++ b/Documentation/devicetree/bindings/mfd/max77693.txt @@ -38,7 +38,7 @@ Optional properties: PWM properties should be named "pwms". And number of cell is different for each pwm device. To get more information, please refer to documentation. - [*] refer Documentation/devicetree/bindings/pwm/pwm.txt + [*] refer Documentation/devicetree/bindings/pwm/pwm-consumers.yaml - charger : Node configuring the charger driver. If present, required properties: diff --git a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt index cfda0d57d302..afa501bf7f94 100644 --- a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt @@ -10,7 +10,7 @@ Required properties: - pinctrl-0: should contain the pinctrl states described by pinctrl default. - #pwm-cells: should be set to 3. This PWM chip use the default 3 cells - bindings defined in pwm.txt in this directory. + bindings defined in pwm.yaml in this directory. Example: diff --git a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-pwm.txt index 591ecdd39c7b..fbb5325be1f0 100644 --- a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/atmel-pwm.txt @@ -7,7 +7,7 @@ Required properties: - "atmel,sama5d2-pwm" - "microchip,sam9x60-pwm" - reg: physical base address and length of the controller's registers - - #pwm-cells: Should be 3. See pwm.txt in this directory for a + - #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt index 8031148bcf85..985fcc65f8c4 100644 --- a/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt @@ -2,7 +2,7 @@ Atmel TCB PWM controller Required properties: - compatible: should be "atmel,tcb-pwm" -- #pwm-cells: should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. - tc-block: The Timer Counter block to use as a PWM chip. diff --git a/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt index d9254a6da5ed..0e662d7f6bd1 100644 --- a/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt @@ -4,7 +4,7 @@ Required properties: - compatible: must be "brcm,bcm7038-pwm" - reg: physical base address and length for this controller -- #pwm-cells: should be 2. See pwm.txt in this directory for a description +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format - clocks: a phandle to the reference clock for this block which is fed through its internal variable clock frequency generator diff --git a/Documentation/devicetree/bindings/pwm/brcm,iproc-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,iproc-pwm.txt index 21f75bbd6dae..655f6cd4ef46 100644 --- a/Documentation/devicetree/bindings/pwm/brcm,iproc-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/brcm,iproc-pwm.txt @@ -6,7 +6,7 @@ Required Properties : - compatible: must be "brcm,iproc-pwm" - reg: physical base address and length of the controller's registers - clocks: phandle + clock specifier pair for the external clock -- #pwm-cells: Should be 3. See pwm.txt in this directory for a +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Refer to clocks/clock-bindings.txt for generic clock consumer properties. diff --git a/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt index 8eae9fe7841c..c42eecfc81ed 100644 --- a/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/brcm,kona-pwm.txt @@ -6,7 +6,7 @@ Required Properties : - compatible: should contain "brcm,kona-pwm" - reg: physical base address and length of the controller's registers - clocks: phandle + clock specifier pair for the external clock -- #pwm-cells: Should be 3. See pwm.txt in this directory for a +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Refer to clocks/clock-bindings.txt for generic clock consumer properties. diff --git a/Documentation/devicetree/bindings/pwm/img-pwm.txt b/Documentation/devicetree/bindings/pwm/img-pwm.txt index fade5f26fcac..9db6de97317d 100644 --- a/Documentation/devicetree/bindings/pwm/img-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/img-pwm.txt @@ -8,7 +8,7 @@ Required properties: - clock-names: Must include the following entries. - pwm: PWM operating clock. - sys: PWM system interface clock. - - #pwm-cells: Should be 2. See pwm.txt in this directory for the + - #pwm-cells: Should be 2. See pwm.yaml in this directory for the description of the cells format. - img,cr-periph: Must contain a phandle to the peripheral control syscon node which contains PWM control registers. diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-pwm.txt index c61bdf8cd41b..22f1c3d8b773 100644 --- a/Documentation/devicetree/bindings/pwm/imx-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/imx-pwm.txt @@ -6,7 +6,7 @@ Required properties: - "fsl,imx1-pwm" for PWM compatible with the one integrated on i.MX1 - "fsl,imx27-pwm" for PWM compatible with the one integrated on i.MX27 - reg: physical base address and length of the controller's registers -- #pwm-cells: 2 for i.MX1 and 3 for i.MX27 and newer SoCs. See pwm.txt +- #pwm-cells: 2 for i.MX1 and 3 for i.MX27 and newer SoCs. See pwm.yaml in this directory for a description of the cells format. - clocks : Clock specifiers for both ipg and per clocks. - clock-names : Clock names should include both "ipg" and "per" diff --git a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt index 3ba958d764ff..5bf20950a24e 100644 --- a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt @@ -3,7 +3,7 @@ Freescale i.MX TPM PWM controller Required properties: - compatible : Should be "fsl,imx7ulp-pwm". - reg: Physical base address and length of the controller's registers. -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format. +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. - clocks : The clock provided by the SoC to drive the PWM. - interrupts: The interrupt for the PWM controller. diff --git a/Documentation/devicetree/bindings/pwm/lpc1850-sct-pwm.txt b/Documentation/devicetree/bindings/pwm/lpc1850-sct-pwm.txt index 36e49d4325cd..43d9f4f08a2e 100644 --- a/Documentation/devicetree/bindings/pwm/lpc1850-sct-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/lpc1850-sct-pwm.txt @@ -7,7 +7,7 @@ Required properties: See ../clock/clock-bindings.txt for details. - clock-names: Must include the following entries. - pwm: PWM operating clock. - - #pwm-cells: Should be 3. See pwm.txt in this directory for the description + - #pwm-cells: Should be 3. See pwm.yaml in this directory for the description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/mxs-pwm.txt b/Documentation/devicetree/bindings/pwm/mxs-pwm.txt index 96cdde5f6208..1b06f86a7091 100644 --- a/Documentation/devicetree/bindings/pwm/mxs-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/mxs-pwm.txt @@ -3,7 +3,7 @@ Freescale MXS PWM controller Required properties: - compatible: should be "fsl,imx23-pwm" - reg: physical base address and length of the controller's registers -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. - fsl,pwm-number: the number of PWM devices diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt index c57e11b8d937..0a69eadf44ce 100644 --- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt @@ -10,7 +10,7 @@ Required properties: - "nvidia,tegra210-pwm", "nvidia,tegra20-pwm": for Tegra210 - "nvidia,tegra186-pwm": for Tegra186 - reg: physical base address and length of the controller's registers -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. - clocks: Must contain one entry, for the module clock. See ../clocks/clock-bindings.txt for details. diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt index f84ec9d291ea..f21b55c95738 100644 --- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt @@ -3,7 +3,7 @@ NXP PCA9685 16-channel 12-bit PWM LED controller Required properties: - compatible: "nxp,pca9685-pwm" - - #pwm-cells: Should be 2. See pwm.txt in this directory for a description of + - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of the cells format. The index 16 is the ALLCALL channel, that sets all PWM channels at the same time. diff --git a/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt b/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt index 8cf87d1bfca5..f5753b3f79df 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt @@ -6,7 +6,7 @@ Required properties: - clocks: This clock defines the base clock frequency of the PWM hardware system, the period and the duty_cycle of the PWM signal is a multiple of the base period. -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Examples: diff --git a/Documentation/devicetree/bindings/pwm/pwm-berlin.txt b/Documentation/devicetree/bindings/pwm/pwm-berlin.txt index 82cbe16fcbbc..f01e993a498a 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-berlin.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-berlin.txt @@ -4,7 +4,7 @@ Required properties: - compatible: should be "marvell,berlin-pwm" - reg: physical base address and length of the controller's registers - clocks: phandle to the input clock -- #pwm-cells: should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/pwm-consumers.yaml b/Documentation/devicetree/bindings/pwm/pwm-consumers.yaml new file mode 100644 index 000000000000..39c844fe6338 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-consumers.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/pwm-consumers.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Specifying PWM information for devices + +maintainers: + - Thierry Reding <thierry.reding(a)gmail.com> + +description: | + PWM properties should be named "pwms". The exact meaning of each pwms + property must be documented in the device tree binding for each device. + An optional property "pwm-names" may contain a list of strings to label + each of the PWM devices listed in the "pwms" property. If no "pwm-names" + property is given, the name of the user node will be used as fallback. + + Drivers for devices that use more than a single PWM device can use the + "pwm-names" property to map the name of the PWM device requested by the + pwm_get() call to an index into the list given by the "pwms" property. + +properties: + pwms: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: | + Phandle to PWM controller node and pwm-specifier (controller specific). + pwm-specifier typically encodes the chip-relative PWM number and the PWM + period in nanoseconds. + Optionally, the pwm-specifier can encode a number of flags (defined in + <dt-bindings/pwm/pwm.h>) in a third cell: + - PWM_POLARITY_INVERTED: invert the PWM signal polarity + + pwm-names: + $ref: /schemas/types.yaml#/definitions/string-array + description: + A list of strings to label each of the PWM devices listed in the "pwms" + property. If no "pwm-names" property is given, the name of the user node + will be used as fallback. + +required: + - pwms + +dependencies: + pwm-names: [ pwms ] + +examples: + - | + // The following example could be used to describe a PWM-based + // backlight device: + + pwm: pwm { + #pwm-cells = <2>; + }; + + bl: backlight { + pwms = <&pwm 0 5000000>; + pwm-names = "backlight"; + }; + + // Note that in the example above, specifying the "pwm-names" is redundant + // because the name "backlight" would be used as fallback anyway. + + - | + // Example with optional PWM specifier for inverse polarity + + #include <dt-bindings/pwm/pwm.h> + + pwm2: pwm { + #pwm-cells = <3>; + }; + + backlight { + pwms = <&pwm2 0 5000000 PWM_POLARITY_INVERTED>; + pwm-names = "backlight"; + }; diff --git a/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt index 576ad002bc83..36532cd5ab25 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt @@ -21,7 +21,7 @@ Required properties: - "fsl,vf610-ftm-pwm" for PWM compatible with the one integrated on VF610 - "fsl,imx8qm-ftm-pwm" for PWM compatible with the one integrated on i.MX8QM - reg: Physical base address and length of the controller's registers -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. - clock-names: Should include the following module clock source entries: "ftm_sys" (module clock, also can be used as counter clock), diff --git a/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt b/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt index daedfef09bb6..54dbc2a0e648 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt @@ -10,7 +10,7 @@ Required properties: - reg: physical base address and length of the controller's registers. - clocks: phandle and clock specifier of the PWM reference clock. - resets: phandle and reset specifier for the PWM controller reset. -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt index 7bd9d3b12ce1..f214305a8f5e 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt @@ -2,7 +2,7 @@ TI/National Semiconductor LP3943 PWM controller Required properties: - compatible: "ti,lp3943-pwm" - - #pwm-cells: Should be 2. See pwm.txt in this directory for a + - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of the cells format. Note that this hardware limits the period length to the range 6250~1600000. diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt index c8501530173c..69cae11d80a6 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt @@ -9,7 +9,7 @@ Required properties: - "mediatek,mt7629-pwm", "mediatek,mt7622-pwm": found on mt7629 SoC. - "mediatek,mt8516-pwm": found on mt8516 SoC. - reg: physical base address and length of the controller's registers. - - #pwm-cells: must be 2. See pwm.txt in this directory for a description of + - #pwm-cells: must be 2. See pwm.yaml in this directory for a description of the cell format. - clocks: phandle and clock specifier of the PWM reference clock. - clock-names: must contain the following, except for MT7628 which diff --git a/Documentation/devicetree/bindings/pwm/pwm-meson.txt b/Documentation/devicetree/bindings/pwm/pwm-meson.txt index 891632354065..bd02b0a1496f 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-meson.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-meson.txt @@ -10,7 +10,7 @@ Required properties: or "amlogic,meson-g12a-ee-pwm" or "amlogic,meson-g12a-ao-pwm-ab" or "amlogic,meson-g12a-ao-pwm-cd" -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Optional properties: diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt index 6f8af2bcc7b7..0521957c253f 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt @@ -6,7 +6,7 @@ Required properties: - "mediatek,mt6595-disp-pwm": found on mt6595 SoC. - "mediatek,mt8173-disp-pwm": found on mt8173 SoC. - reg: physical base address and length of the controller's registers. - - #pwm-cells: must be 2. See pwm.txt in this directory for a description of + - #pwm-cells: must be 2. See pwm.yaml in this directory for a description of the cell format. - clocks: phandle and clock specifier of the PWM reference clock. - clock-names: must contain the following: diff --git a/Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt b/Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt index 5ccfcc82da08..d722ae3be363 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt @@ -4,7 +4,7 @@ Required properties: - compatible: Shall contain "ti,omap-dmtimer-pwm". - ti,timers: phandle to PWM capable OMAP timer. See timer/ti,timer.txt for info about these timers. -- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Optional properties: diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt index 2c5e52a5bede..f70956dea77b 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt @@ -14,7 +14,7 @@ Required properties: - For newer hardware (rk3328 and future socs): specified by name - "pwm": This is used to derive the functional clock. - "pclk": This is the APB bus clock. - - #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory + - #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.yaml in this directory for a description of the cell format. Example: diff --git a/Documentation/devicetree/bindings/pwm/pwm-sifive.txt b/Documentation/devicetree/bindings/pwm/pwm-sifive.txt index 36447e3c9378..3d1dd7b06efc 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-sifive.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-sifive.txt @@ -17,7 +17,7 @@ Required properties: Please refer to sifive-blocks-ip-versioning.txt for details. - reg: physical base address and length of the controller's registers - clocks: Should contain a clock identifier for the PWM's parent clock. -- #pwm-cells: Should be 3. See pwm.txt in this directory +- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cell format. - interrupts: one interrupt per PWM channel diff --git a/Documentation/devicetree/bindings/pwm/pwm-sprd.txt b/Documentation/devicetree/bindings/pwm/pwm-sprd.txt index 16fa5a096206..83a8b732418c 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-sprd.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-sprd.txt @@ -9,8 +9,8 @@ Required properties: - clock-names: Should contain following entries: "pwmn": used to derive the functional clock for PWM channel n (n range: 0 ~ 3). "enablen": for PWM channel n enable clock (n range: 0 ~ 3). -- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of - the cells format. +- #pwm-cells: Should be 2. See pwm-consumers.yaml in this directory + for a description of the cells format. Optional properties: - assigned-clocks: Reference to the PWM clock entries. diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt index 6521bc44a74e..4cecb8e456b6 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt @@ -8,7 +8,7 @@ See ../mfd/stm32-lptimer.txt for details about the parent node. Required parameters: - compatible: Must be "st,stm32-pwm-lp". - #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells - bindings defined in pwm.txt. + bindings defined in pwm.yaml. Optional properties: - pinctrl-names: Set to "default". An additional "sleep" state can be diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt index a8690bfa5e1f..f390a5ba3d3a 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt @@ -9,7 +9,7 @@ Required parameters: - pinctrl-0: List of phandles pointing to pin configuration nodes for PWM module. For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt - #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells - bindings defined in pwm.txt. + bindings defined in pwm.yaml. Optional parameters: - st,breakinput: One or two <index level filter> to describe break input configurations. diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt index b9a1d7402128..c7c4347a769a 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt @@ -8,7 +8,7 @@ Required properties: for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap"; for 66ak2g - compatible = "ti,k2g-ecap", "ti,am3352-ecap"; for am654 - compatible = "ti,am654-ecap", "ti,am3352-ecap"; -- #pwm-cells: should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. The PWM channel index ranges from 0 to 4. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. - reg: physical base address and size of the registers map. diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt index 31c4577157dd..c7e28f6d28be 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt @@ -7,7 +7,7 @@ Required properties: for am654 - compatible = "ti,am654-ehrpwm", "ti-am3352-ehrpwm"; for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm"; for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm"; -- #pwm-cells: should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. - reg: physical base address and size of the registers map. diff --git a/Documentation/devicetree/bindings/pwm/pwm-zx.txt b/Documentation/devicetree/bindings/pwm/pwm-zx.txt index a6bcc75c9164..3c8fe7aa8269 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-zx.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-zx.txt @@ -7,7 +7,7 @@ Required properties: - clock-names: "pclk" for PCLK, "wclk" for WCLK to the PWM controller. The PCLK is for register access, while WCLK is the reference clock for calculating period and duty cycles. - - #pwm-cells: Should be 3. See pwm.txt in this directory for a description of + - #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/pwm.txt b/Documentation/devicetree/bindings/pwm/pwm.txt deleted file mode 100644 index 8556263b8502..000000000000 --- a/Documentation/devicetree/bindings/pwm/pwm.txt +++ /dev/null @@ -1,69 +0,0 @@ -Specifying PWM information for devices -====================================== - -1) PWM user nodes ------------------ - -PWM users should specify a list of PWM devices that they want to use -with a property containing a 'pwm-list': - - pwm-list ::= <single-pwm> [pwm-list] - single-pwm ::= <pwm-phandle> <pwm-specifier> - pwm-phandle : phandle to PWM controller node - pwm-specifier : array of #pwm-cells specifying the given PWM - (controller specific) - -PWM properties should be named "pwms". The exact meaning of each pwms -property must be documented in the device tree binding for each device. -An optional property "pwm-names" may contain a list of strings to label -each of the PWM devices listed in the "pwms" property. If no "pwm-names" -property is given, the name of the user node will be used as fallback. - -Drivers for devices that use more than a single PWM device can use the -"pwm-names" property to map the name of the PWM device requested by the -pwm_get() call to an index into the list given by the "pwms" property. - -The following example could be used to describe a PWM-based backlight -device: - - pwm: pwm { - #pwm-cells = <2>; - }; - - [...] - - bl: backlight { - pwms = <&pwm 0 5000000>; - pwm-names = "backlight"; - }; - -Note that in the example above, specifying the "pwm-names" is redundant -because the name "backlight" would be used as fallback anyway. - -pwm-specifier typically encodes the chip-relative PWM number and the PWM -period in nanoseconds. - -Optionally, the pwm-specifier can encode a number of flags (defined in -<dt-bindings/pwm/pwm.h>) in a third cell: -- PWM_POLARITY_INVERTED: invert the PWM signal polarity - -Example with optional PWM specifier for inverse polarity - - bl: backlight { - pwms = <&pwm 0 5000000 PWM_POLARITY_INVERTED>; - pwm-names = "backlight"; - }; - -2) PWM controller nodes ------------------------ - -PWM controller nodes must specify the number of cells used for the -specifier using the '#pwm-cells' property. - -An example PWM controller might look like this: - - pwm: pwm@7000a000 { - compatible = "nvidia,tegra20-pwm"; - reg = <0x7000a000 0x100>; - #pwm-cells = <2>; - }; diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml new file mode 100644 index 000000000000..aad99d505bb0 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm.yaml @@ -0,0 +1,29 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PWM controllers (providers) + +maintainers: + - Thierry Reding <thierry.reding(a)gmail.com> + +properties: + $nodename: + pattern: "^pwm(@.*|-[0-9a-f])*$" + + "#pwm-cells": + description: + Number of cells in a PWM specifier. + +required: + - "#pwm-cells" + +examples: + - | + pwm: pwm@7000a000 { + compatible = "nvidia,tegra20-pwm"; + reg = <0x7000a000 0x100>; + #pwm-cells = <2>; + }; diff --git a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt index fbd6a4f943ce..a29137869f7a 100644 --- a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt +++ b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt @@ -20,7 +20,7 @@ Required Properties: - "renesas,pwm-r8a77990": for R-Car E3 - "renesas,pwm-r8a77995": for R-Car D3 - reg: base address and length of the registers block for the PWM. -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. - clocks: clock phandle and specifier pair. - pinctrl-0: phandle, referring to a default pin configuration node. diff --git a/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt index 848a92b53d81..966994968069 100644 --- a/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt @@ -19,11 +19,11 @@ Required Properties: - reg: Base address and length of each memory resource used by the PWM controller hardware module. - - #pwm-cells: should be 3. See pwm.txt in this directory for a description of + - #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. -Please refer to pwm.txt in this directory for details of the common PWM bindings +Please refer to pwm-consumers.yaml in this directory for details of the common PWM bindings used by client devices. Example: R8A7740 (R-Mobile A1) TPU controller node diff --git a/Documentation/devicetree/bindings/pwm/spear-pwm.txt b/Documentation/devicetree/bindings/pwm/spear-pwm.txt index b486de2c3fe3..95894128b62f 100644 --- a/Documentation/devicetree/bindings/pwm/spear-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/spear-pwm.txt @@ -5,7 +5,7 @@ Required properties: - "st,spear320-pwm" - "st,spear1340-pwm" - reg: physical base address and length of the controller's registers -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt b/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt index cb209646bf13..f401316e0248 100644 --- a/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt @@ -7,7 +7,7 @@ subdevices of the STMPE MFD device. Required properties: - compatible: should be: - "st,stmpe-pwm" -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt b/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt index 4e32bee11201..d97ca1964e94 100644 --- a/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt @@ -6,7 +6,7 @@ On TWL6030 series: PWM0 and PWM1 Required properties: - compatible: "ti,twl4030-pwm" or "ti,twl6030-pwm" -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/ti,twl-pwmled.txt b/Documentation/devicetree/bindings/pwm/ti,twl-pwmled.txt index 9f4b46090782..31ca1b032ef0 100644 --- a/Documentation/devicetree/bindings/pwm/ti,twl-pwmled.txt +++ b/Documentation/devicetree/bindings/pwm/ti,twl-pwmled.txt @@ -6,7 +6,7 @@ On TWL6030 series: LED PWM (mainly used as charging indicator LED) Required properties: - compatible: "ti,twl4030-pwmled" or "ti,twl6030-pwmled" -- #pwm-cells: should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of the cells format. Example: diff --git a/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt b/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt index a76390e6df2e..4fba93ce1985 100644 --- a/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt +++ b/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt @@ -3,7 +3,7 @@ VIA/Wondermedia VT8500/WM8xxx series SoC PWM controller Required properties: - compatible: should be "via,vt8500-pwm" - reg: physical base address and length of the controller's registers -- #pwm-cells: should be 3. See pwm.txt in this directory for a description of +- #pwm-cells: should be 3. See pwm.yaml in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. - clocks: phandle to the PWM source clock diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index 3d78d507e29f..252edcc2e381 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -27,7 +27,7 @@ Required properties: -------------------- - compatible: Should be "pwm-regulator" -- pwms: PWM specification (See: ../pwm/pwm.txt) +- pwms: PWM specification (See: ../pwm/pwm-consumers.yaml) Only required for Voltage Table Mode: - voltage-table: Voltage and Duty-Cycle table consisting of 2 cells diff --git a/Documentation/devicetree/bindings/timer/ingenic,tcu.txt b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt index 5a4b9ddd9470..0c7bd51c19eb 100644 --- a/Documentation/devicetree/bindings/timer/ingenic,tcu.txt +++ b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt @@ -42,7 +42,7 @@ Required properties: - compatible: Must be one of: * ingenic,jz4740-pwm * ingenic,jz4725b-pwm -- #pwm-cells: Should be 3. See ../pwm/pwm.txt for a description of the cell +- #pwm-cells: Should be 3. See ../pwm/pwm.yaml for a description of the cell format. - clocks: List of phandle & clock specifiers for the TCU clocks. - clock-names: List of name strings for the TCU clocks. -- 2.17.1

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[PATCH v2 0/5] DRM/MSM: Add support for MSM8956 and Adreno 510
by kholk11＠gmail.com 10 Oct '19

10 Oct '19

From: AngeloGioacchino Del Regno <kholk11(a)gmail.com> This patch series enables support for MSM8956/76 and its Adreno 510 GPU on the current DRM driver. The personal aim is to upstream MSM8956 as much as possible. This code has been tested on two Sony phones featuring the Qualcomm MSM8956 SoC. Changes in v2: - MDP5: Documented tbu and tbu_rt clocks (Jeffrey) - Adreno510: - Lower case hex where required (Jordan) - Direct register writes (Jordan) - Used gpu_rmw() where required (Jordan) - No mentioning of unsupported A5xx (Jordan) - ZAP firmware exclusions not per-model (Rob) Angelo G. Del Regno (5): drm/msm/mdp5: Add optional TBU and TBU_RT clocks drm/msm/mdp5: Add configuration for msm8x56 drm/msm/dsi: Add configuration for 28nm PLL on family B drm/msm/dsi: Add configuration for 8x56 drm/msm/adreno: Add support for Adreno 510 GPU .../devicetree/bindings/display/msm/dsi.txt | 1 + .../devicetree/bindings/display/msm/mdp5.txt | 2 + drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 73 +++++++++++--- drivers/gpu/drm/msm/adreno/a5xx_power.c | 7 ++ drivers/gpu/drm/msm/adreno/adreno_device.c | 15 +++ drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 + drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c | 99 +++++++++++++++++++ drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 10 ++ drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h | 2 + drivers/gpu/drm/msm/dsi/dsi_cfg.c | 22 +++++ drivers/gpu/drm/msm/dsi/dsi_cfg.h | 1 + drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 2 + drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 1 + drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c | 18 ++++ 14 files changed, 244 insertions(+), 14 deletions(-) -- 2.21.0

2 7

[PATCH v11 0/5] DMA-BUF Heaps (destaging ION)
by John Stultz 10 Oct '19

10 Oct '19

Feeling a bit repetitive, but here is yet another pass at the dma-buf heaps patchset Andrew and I have been working on which tries to destage a fair chunk of ION functionality. The patchset implements per-heap devices which can be opened directly and then an ioctl is used to allocate a dmabuf from the heap. The interface is similar, but much simpler then IONs, only providing an ALLOC ioctl. Also, I've provided relatively simple system and cma heaps. I've booted and tested these patches with AOSP on the HiKey960 using the kernel tree here: https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/dma-bu… And the userspace changes here: https://android-review.googlesource.com/c/device/linaro/hikey/+/909436 Compared to ION, this patchset is missing the system-contig, carveout and chunk heaps, as I don't have a device that uses those, so I'm unable to do much useful validation there. Additionally we have no upstream users of chunk or carveout, and the system-contig has been deprecated in the common/andoid-* kernels, so this should be ok. I've also removed the stats accounting, since any such accounting should be implemented by dma-buf core or the heaps themselves. New in v11: * Kconfig text improvements suggested by Randy Dunlap thanks -john Cc: Laura Abbott <labbott(a)redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> Cc: Sumit Semwal <sumit.semwal(a)linaro.org> Cc: Liam Mark <lmark(a)codeaurora.org> Cc: Pratik Patel <pratikp(a)codeaurora.org> Cc: Brian Starkey <Brian.Starkey(a)arm.com> Cc: Vincent Donnefort <Vincent.Donnefort(a)arm.com> Cc: Sudipto Paul <Sudipto.Paul(a)arm.com> Cc: Andrew F. Davis <afd(a)ti.com> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Chenbo Feng <fengc(a)google.com> Cc: Alistair Strachan <astrachan(a)google.com> Cc: Hridya Valsaraju <hridya(a)google.com> Cc: Hillf Danton <hdanton(a)sina.com> Cc: dri-devel(a)lists.freedesktop.org Andrew F. Davis (1): dma-buf: Add dma-buf heaps framework John Stultz (4): dma-buf: heaps: Add heap helpers dma-buf: heaps: Add system heap to dmabuf heaps dma-buf: heaps: Add CMA heap to dmabuf heaps kselftests: Add dma-heap test MAINTAINERS | 18 ++ drivers/dma-buf/Kconfig | 11 + drivers/dma-buf/Makefile | 2 + drivers/dma-buf/dma-heap.c | 250 ++++++++++++++++ drivers/dma-buf/heaps/Kconfig | 14 + drivers/dma-buf/heaps/Makefile | 4 + drivers/dma-buf/heaps/cma_heap.c | 169 +++++++++++ drivers/dma-buf/heaps/heap-helpers.c | 267 ++++++++++++++++++ drivers/dma-buf/heaps/heap-helpers.h | 55 ++++ drivers/dma-buf/heaps/system_heap.c | 122 ++++++++ include/linux/dma-heap.h | 59 ++++ include/uapi/linux/dma-heap.h | 55 ++++ tools/testing/selftests/dmabuf-heaps/Makefile | 9 + .../selftests/dmabuf-heaps/dmabuf-heap.c | 238 ++++++++++++++++ 14 files changed, 1273 insertions(+) create mode 100644 drivers/dma-buf/dma-heap.c create mode 100644 drivers/dma-buf/heaps/Kconfig create mode 100644 drivers/dma-buf/heaps/Makefile create mode 100644 drivers/dma-buf/heaps/cma_heap.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.h create mode 100644 drivers/dma-buf/heaps/system_heap.c create mode 100644 include/linux/dma-heap.h create mode 100644 include/uapi/linux/dma-heap.h create mode 100644 tools/testing/selftests/dmabuf-heaps/Makefile create mode 100644 tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c -- 2.17.1

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dri-devel October 2019