Pinctrl support for HDMI needs a small fix before the actual implementation...
Stephane Viau (2): drm/msm/hdmi: Point to the right struct device drm/msm/hdmi: Use pinctrl in HDMI driver
Documentation/devicetree/bindings/drm/msm/hdmi.txt | 6 +++ drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 43 ++++++++++++++-------- 2 files changed, 33 insertions(+), 16 deletions(-)
DRM device's dev (hdmi->dev->dev) points to the mdss_mdp device handle. Instead, we should get a reference to the mdss_hdmi handle.
Signed-off-by: Stephane Viau sviau@codeaurora.org --- drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 32 +++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c index 914bf95..e29b62a 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c @@ -78,14 +78,14 @@ static void hdmi_phy_reset(struct hdmi *hdmi)
static int gpio_config(struct hdmi *hdmi, bool on) { - struct drm_device *dev = hdmi->dev; + struct device *dev = &hdmi->pdev->dev; const struct hdmi_platform_config *config = hdmi->config; int ret;
if (on) { ret = gpio_request(config->ddc_clk_gpio, "HDMI_DDC_CLK"); if (ret) { - dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n", + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_DDC_CLK", config->ddc_clk_gpio, ret); goto error1; } @@ -93,7 +93,7 @@ static int gpio_config(struct hdmi *hdmi, bool on)
ret = gpio_request(config->ddc_data_gpio, "HDMI_DDC_DATA"); if (ret) { - dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n", + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_DDC_DATA", config->ddc_data_gpio, ret); goto error2; } @@ -101,7 +101,7 @@ static int gpio_config(struct hdmi *hdmi, bool on)
ret = gpio_request(config->hpd_gpio, "HDMI_HPD"); if (ret) { - dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n", + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_HPD", config->hpd_gpio, ret); goto error3; } @@ -111,7 +111,7 @@ static int gpio_config(struct hdmi *hdmi, bool on) if (config->mux_en_gpio != -1) { ret = gpio_request(config->mux_en_gpio, "HDMI_MUX_EN"); if (ret) { - dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n", + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_MUX_EN", config->mux_en_gpio, ret); goto error4; } @@ -121,7 +121,7 @@ static int gpio_config(struct hdmi *hdmi, bool on) if (config->mux_sel_gpio != -1) { ret = gpio_request(config->mux_sel_gpio, "HDMI_MUX_SEL"); if (ret) { - dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n", + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_MUX_SEL", config->mux_sel_gpio, ret); goto error5; } @@ -132,7 +132,7 @@ static int gpio_config(struct hdmi *hdmi, bool on) ret = gpio_request(config->mux_lpm_gpio, "HDMI_MUX_LPM"); if (ret) { - dev_err(dev->dev, + dev_err(dev, "'%s'(%d) gpio_request failed: %d\n", "HDMI_MUX_LPM", config->mux_lpm_gpio, ret); @@ -185,7 +185,7 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector) { struct hdmi *hdmi = hdmi_connector->hdmi; const struct hdmi_platform_config *config = hdmi->config; - struct drm_device *dev = hdmi_connector->base.dev; + struct device *dev = &hdmi->pdev->dev; struct hdmi_phy *phy = hdmi->phy; uint32_t hpd_ctrl; int i, ret; @@ -193,7 +193,7 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector) for (i = 0; i < config->hpd_reg_cnt; i++) { ret = regulator_enable(hdmi->hpd_regs[i]); if (ret) { - dev_err(dev->dev, "failed to enable hpd regulator: %s (%d)\n", + dev_err(dev, "failed to enable hpd regulator: %s (%d)\n", config->hpd_reg_names[i], ret); goto fail; } @@ -201,7 +201,7 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector)
ret = gpio_config(hdmi, true); if (ret) { - dev_err(dev->dev, "failed to configure GPIOs: %d\n", ret); + dev_err(dev, "failed to configure GPIOs: %d\n", ret); goto fail; }
@@ -210,13 +210,13 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector) ret = clk_set_rate(hdmi->hpd_clks[i], config->hpd_freq[i]); if (ret) - dev_warn(dev->dev, "failed to set clk %s (%d)\n", + dev_warn(dev, "failed to set clk %s (%d)\n", config->hpd_clk_names[i], ret); }
ret = clk_prepare_enable(hdmi->hpd_clks[i]); if (ret) { - dev_err(dev->dev, "failed to enable hpd clk: %s (%d)\n", + dev_err(dev, "failed to enable hpd clk: %s (%d)\n", config->hpd_clk_names[i], ret); goto fail; } @@ -253,7 +253,7 @@ static void hdp_disable(struct hdmi_connector *hdmi_connector) { struct hdmi *hdmi = hdmi_connector->hdmi; const struct hdmi_platform_config *config = hdmi->config; - struct drm_device *dev = hdmi_connector->base.dev; + struct device *dev = &hdmi->pdev->dev; int i, ret = 0;
/* Disable HPD interrupt */ @@ -266,12 +266,12 @@ static void hdp_disable(struct hdmi_connector *hdmi_connector)
ret = gpio_config(hdmi, false); if (ret) - dev_warn(dev->dev, "failed to unconfigure GPIOs: %d\n", ret); + dev_warn(dev, "failed to unconfigure GPIOs: %d\n", ret);
for (i = 0; i < config->hpd_reg_cnt; i++) { ret = regulator_disable(hdmi->hpd_regs[i]); if (ret) - dev_warn(dev->dev, "failed to disable hpd regulator: %s (%d)\n", + dev_warn(dev, "failed to disable hpd regulator: %s (%d)\n", config->hpd_reg_names[i], ret); } } @@ -483,7 +483,7 @@ struct drm_connector *hdmi_connector_init(struct hdmi *hdmi)
ret = hpd_enable(hdmi_connector); if (ret) { - dev_err(hdmi->dev->dev, "failed to enable HPD: %d\n", ret); + dev_err(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret); goto fail; }
Some targets (eg: msm8994) use the pinctrl framework to configure interface pins. This change adds support for initialization and pinctrl active/sleep state control for the HDMI driver.
Signed-off-by: Stephane Viau sviau@codeaurora.org --- v3: - Use pins binding handled in driver really_probe() [Ivan]
v2: - Add devicetree binding documentation for pinctrl property [Ivan] - Use pinctrl framework's PINCTRL_STATE_DEFAULT/SLEEP states [Ivan]
Documentation/devicetree/bindings/drm/msm/hdmi.txt | 6 ++++++ drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 11 +++++++++++ 2 files changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/drm/msm/hdmi.txt b/Documentation/devicetree/bindings/drm/msm/hdmi.txt index a29a55f..c43aa53 100644 --- a/Documentation/devicetree/bindings/drm/msm/hdmi.txt +++ b/Documentation/devicetree/bindings/drm/msm/hdmi.txt @@ -20,6 +20,9 @@ Required properties: Optional properties: - qcom,hdmi-tx-mux-en-gpio: hdmi mux enable pin - qcom,hdmi-tx-mux-sel-gpio: hdmi mux select pin +- pinctrl-names: the pin control state names; should contain "default" +- pinctrl-0: the default pinctrl state (active) +- pinctrl-1: the "sleep" pinctrl state
Example:
@@ -44,5 +47,8 @@ Example: qcom,hdmi-tx-hpd = <&msmgpio 72 GPIO_ACTIVE_HIGH>; core-vdda-supply = <&pm8921_hdmi_mvs>; hdmi-mux-supply = <&ext_3p3v>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&hpd_active &ddc_active &cec_active>; + pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>; }; }; diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c index e29b62a..ece572d 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c @@ -16,6 +16,7 @@ */
#include <linux/gpio.h> +#include <linux/pinctrl/consumer.h>
#include "msm_kms.h" #include "hdmi.h" @@ -199,6 +200,12 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector) } }
+ ret = pinctrl_pm_select_default_state(dev); + if (ret) { + dev_err(dev, "pinctrl state chg failed: %d\n", ret); + goto fail; + } + ret = gpio_config(hdmi, true); if (ret) { dev_err(dev, "failed to configure GPIOs: %d\n", ret); @@ -268,6 +275,10 @@ static void hdp_disable(struct hdmi_connector *hdmi_connector) if (ret) dev_warn(dev, "failed to unconfigure GPIOs: %d\n", ret);
+ ret = pinctrl_pm_select_sleep_state(dev); + if (ret) + dev_warn(dev, "pinctrl state chg failed: %d\n", ret); + for (i = 0; i < config->hpd_reg_cnt; i++) { ret = regulator_disable(hdmi->hpd_regs[i]); if (ret)
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Stephane Viau