drm/msm/hdmi: Use pinctrl in HDMI driver
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> Signed-off-by: Rob Clark <robdclark@gmail.com>
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@ -20,6 +20,9 @@ Required properties:
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Optional properties:
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- qcom,hdmi-tx-mux-en-gpio: hdmi mux enable pin
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- qcom,hdmi-tx-mux-sel-gpio: hdmi mux select pin
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- pinctrl-names: the pin control state names; should contain "default"
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- pinctrl-0: the default pinctrl state (active)
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- pinctrl-1: the "sleep" pinctrl state
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Example:
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@ -44,5 +47,8 @@ Example:
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qcom,hdmi-tx-hpd = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
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core-vdda-supply = <&pm8921_hdmi_mvs>;
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hdmi-mux-supply = <&ext_3p3v>;
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&hpd_active &ddc_active &cec_active>;
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pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>;
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};
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};
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@ -16,6 +16,7 @@
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*/
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#include <linux/gpio.h>
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#include <linux/pinctrl/consumer.h>
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#include "msm_kms.h"
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#include "hdmi.h"
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@ -150,6 +151,12 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector)
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}
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}
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ret = pinctrl_pm_select_default_state(dev);
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if (ret) {
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dev_err(dev, "pinctrl state chg failed: %d\n", ret);
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goto fail;
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}
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ret = gpio_config(hdmi, true);
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if (ret) {
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dev_err(dev, "failed to configure GPIOs: %d\n", ret);
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@ -219,6 +226,10 @@ static void hdp_disable(struct hdmi_connector *hdmi_connector)
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if (ret)
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dev_warn(dev, "failed to unconfigure GPIOs: %d\n", ret);
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ret = pinctrl_pm_select_sleep_state(dev);
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if (ret)
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dev_warn(dev, "pinctrl state chg failed: %d\n", ret);
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for (i = 0; i < config->hpd_reg_cnt; i++) {
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ret = regulator_disable(hdmi->hpd_regs[i]);
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if (ret)
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