Merge "DRM: SDE: Update the hdmi bridge to handle HPD clock" (bcc563a0) · Commits · e / devices / android_kernel_sony_msm8998

drivers/gpu/drm/msm/hdmi-staging/sde_hdmi.c

+66 −5

Original line number	Diff line number	Diff line
		@@ -1342,7 +1342,56 @@ fail:
		return ret;
		}

		static void _sde_hdmi_hdp_disable(struct sde_hdmi *sde_hdmi)
		int sde_hdmi_core_enable(struct sde_hdmi *sde_hdmi)
		{
		struct hdmi *hdmi = sde_hdmi->ctrl.ctrl;
		const struct hdmi_platform_config *config = hdmi->config;
		struct device *dev = &hdmi->pdev->dev;
		int i, ret;
		struct drm_connector *connector;
		struct msm_drm_private *priv;
		struct sde_kms *sde_kms;

		connector = hdmi->connector;
		priv = connector->dev->dev_private;
		sde_kms = to_sde_kms(priv->kms);

		for (i = 0; i < config->hpd_reg_cnt; i++) {
		ret = regulator_enable(hdmi->hpd_regs[i]);
		if (ret) {
		SDE_ERROR("failed to enable hpd regulator: %s (%d)\n",
		config->hpd_reg_names[i], ret);
		}
		}

		ret = pinctrl_pm_select_default_state(dev);
		if (ret)
		SDE_ERROR("pinctrl state chg failed: %d\n", ret);

		ret = _sde_hdmi_gpio_config(hdmi, true);
		if (ret)
		SDE_ERROR("failed to configure GPIOs: %d\n", ret);

		for (i = 0; i < config->hpd_clk_cnt; i++) {
		if (config->hpd_freq && config->hpd_freq[i]) {
		ret = clk_set_rate(hdmi->hpd_clks[i],
		config->hpd_freq[i]);
		if (ret)
		pr_warn("failed to set clk %s (%d)\n",
		config->hpd_clk_names[i], ret);
		}

		ret = clk_prepare_enable(hdmi->hpd_clks[i]);
		if (ret) {
		SDE_ERROR("failed to enable hpd clk: %s (%d)\n",
		config->hpd_clk_names[i], ret);
		}
		}

		return ret;
		}

		static void _sde_hdmi_hpd_disable(struct sde_hdmi *sde_hdmi)
		{
		struct hdmi *hdmi = sde_hdmi->ctrl.ctrl;
		const struct hdmi_platform_config *config = hdmi->config;
		@@ -1373,6 +1422,12 @@ static void _sde_hdmi_hdp_disable(struct sde_hdmi *sde_hdmi)
		}
		}

		void sde_hdmi_core_disable(struct sde_hdmi *sde_hdmi)
		{
		/* HPD contains all the core clock and pwr */
		_sde_hdmi_hpd_disable(sde_hdmi);
		}

		static void _sde_hdmi_cec_update_phys_addr(struct sde_hdmi *display)
		{
		struct edid *edid = display->edid_ctrl->edid;
		@@ -2217,7 +2272,8 @@ int sde_hdmi_connector_pre_deinit(struct drm_connector *connector,
		return -EINVAL;
		}

		_sde_hdmi_hdp_disable(sde_hdmi);
		if (!sde_hdmi->non_pluggable)
		_sde_hdmi_hpd_disable(sde_hdmi);

		return 0;
		}
		@@ -2389,9 +2445,14 @@ int sde_hdmi_connector_post_init(struct drm_connector *connector,
		INIT_WORK(&sde_hdmi->hpd_work, _sde_hdmi_hotplug_work);

		/* Enable HPD detection */
		if (!sde_hdmi->non_pluggable) {
		rc = _sde_hdmi_hpd_enable(sde_hdmi);
		if (rc)
		SDE_ERROR("failed to enable HPD: %d\n", rc);
		} else {
		/* Disable HPD interrupt */
		hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, 0);
		}

		_sde_hdmi_get_tx_version(sde_hdmi);

drivers/gpu/drm/msm/hdmi-staging/sde_hdmi.h

+16 −0

Original line number	Diff line number	Diff line
		@@ -301,6 +301,22 @@ sde_hdmi_connector_detect(struct drm_connector *connector,
		bool force,
		void *display);

		/**
		* sde_hdmi_core_enable()- turn on clk and pwr for hdmi core
		* @sde_hdmi: Pointer to sde_hdmi structure
		*
		* Return: error code
		*/
		int sde_hdmi_core_enable(struct sde_hdmi *sde_hdmi);

		/**
		* sde_hdmi_core_disable()- turn off clk and pwr for hdmi core
		* @sde_hdmi: Pointer to sde_hdmi structure
		*
		* Return: none
		*/
		void sde_hdmi_core_disable(struct sde_hdmi *sde_hdmi);

		/**
		* sde_hdmi_connector_get_modes - add drm modes via drm_mode_probed_add()
		* @connector: Pointer to drm connector structure

drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c

+21 −1

Original line number	Diff line number	Diff line
		@@ -106,6 +106,8 @@ struct sde_hdmi_bridge {
		#define HDMI_AVI_IFRAME_LINE_NUMBER 1
		#define HDMI_VENDOR_IFRAME_LINE_NUMBER 3

		static int _sde_hdmi_bridge_setup_scrambler(struct hdmi *hdmi,
		struct drm_display_mode *mode);
		void _sde_hdmi_bridge_destroy(struct drm_bridge *bridge)
		{
		}
		@@ -129,6 +131,8 @@ static void _sde_hdmi_bridge_power_on(struct drm_bridge *bridge)
		struct sde_hdmi_bridge *sde_hdmi_bridge = to_hdmi_bridge(bridge);
		struct hdmi *hdmi = sde_hdmi_bridge->hdmi;
		const struct hdmi_platform_config *config = hdmi->config;
		struct sde_connector *c_conn = to_sde_connector(hdmi->connector);
		struct sde_hdmi display = (struct sde_hdmi )c_conn->display;
		int i, ret;

		for (i = 0; i < config->pwr_reg_cnt; i++) {
		@@ -155,6 +159,13 @@ static void _sde_hdmi_bridge_power_on(struct drm_bridge *bridge)
		config->pwr_clk_names[i], ret);
		}
		}

		if (display->non_pluggable) {
		ret = sde_hdmi_core_enable(display);
		if (ret)
		SDE_ERROR("failed to enable hpd clks: %d\n", ret);
		}
		_sde_hdmi_bridge_setup_scrambler(hdmi, &display->mode);
		}

		static void _sde_hdmi_bridge_power_off(struct drm_bridge *bridge)
		@@ -162,6 +173,8 @@ static void _sde_hdmi_bridge_power_off(struct drm_bridge *bridge)
		struct sde_hdmi_bridge *sde_hdmi_bridge = to_hdmi_bridge(bridge);
		struct hdmi *hdmi = sde_hdmi_bridge->hdmi;
		const struct hdmi_platform_config *config = hdmi->config;
		struct sde_connector *c_conn = to_sde_connector(hdmi->connector);
		struct sde_hdmi display = (struct sde_hdmi )c_conn->display;
		int i, ret;

		/* Wait for vsync */
		@@ -177,6 +190,9 @@ static void _sde_hdmi_bridge_power_off(struct drm_bridge *bridge)
		config->pwr_reg_names[i], ret);
		}
		}

		if (display->non_pluggable)
		sde_hdmi_core_disable(display);
		}

		static int _sde_hdmi_bridge_ddc_clear_irq(struct hdmi *hdmi,
		@@ -488,6 +504,9 @@ static void _sde_hdmi_bridge_pre_enable(struct drm_bridge *bridge)
		if (hdmi->hdcp_ctrl && hdmi->is_hdcp_supported)
		hdmi_hdcp_ctrl_on(hdmi->hdcp_ctrl);

		/* turn on scrambler, scrambler was skipped if HDMI is off */
		_sde_hdmi_bridge_setup_scrambler(hdmi, &display->mode);

		mutex_lock(&display->display_lock);
		if (display->codec_ready)
		sde_hdmi_notify_clients(display, display->connected);
		@@ -896,6 +915,7 @@ static void _sde_hdmi_bridge_mode_set(struct drm_bridge *bridge,
		}

		_sde_hdmi_save_mode(hdmi, mode);
		if (hdmi->power_on)
		_sde_hdmi_bridge_setup_scrambler(hdmi, mode);
		_sde_hdmi_bridge_setup_deep_color(hdmi);
		}