drm/i915: Add HDMI support on IGDNG (30ad48b7) · Commits · jan.koester / Linux

drivers/gpu/drm/i915/intel_display.c

+16 −1

Original line number	Diff line number	Diff line
		@@ -2432,7 +2432,22 @@ static void intel_setup_outputs(struct drm_device *dev)
		intel_lvds_init(dev);

		if (IS_IGDNG(dev)) {
		/* ignore for other outputs */
		int found;

		if (I915_READ(HDMIB) & PORT_DETECTED) {
		/* check SDVOB */
		/* found = intel_sdvo_init(dev, HDMIB); */
		found = 0;
		if (!found)
		intel_hdmi_init(dev, HDMIB);
		}

		if (I915_READ(HDMIC) & PORT_DETECTED)
		intel_hdmi_init(dev, HDMIC);

		if (I915_READ(HDMID) & PORT_DETECTED)
		intel_hdmi_init(dev, HDMID);

		} else if (IS_I9XX(dev)) {
		int found;
		u32 reg;

drivers/gpu/drm/i915/intel_hdmi.c

+31 −2

Original line number	Diff line number	Diff line
		@@ -56,7 +56,8 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
		sdvox = SDVO_ENCODING_HDMI \|
		SDVO_BORDER_ENABLE \|
		SDVO_VSYNC_ACTIVE_HIGH \|
		SDVO_HSYNC_ACTIVE_HIGH;
		SDVO_HSYNC_ACTIVE_HIGH \|
		SDVO_NULL_PACKETS_DURING_VSYNC;

		if (hdmi_priv->has_hdmi_sink)
		sdvox \|= SDVO_AUDIO_ENABLE;
		@@ -144,6 +145,22 @@ intel_hdmi_sink_detect(struct drm_connector *connector)
		}
		}

		static enum drm_connector_status
		igdng_hdmi_detect(struct drm_connector *connector)
		{
		struct intel_output *intel_output = to_intel_output(connector);
		struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;

		/* FIXME hotplug detect */

		hdmi_priv->has_hdmi_sink = false;
		intel_hdmi_sink_detect(connector);
		if (hdmi_priv->has_hdmi_sink)
		return connector_status_connected;
		else
		return connector_status_disconnected;
		}

		static enum drm_connector_status
		intel_hdmi_detect(struct drm_connector *connector)
		{
		@@ -153,6 +170,9 @@ intel_hdmi_detect(struct drm_connector *connector)
		struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
		u32 temp, bit;

		if (IS_IGDNG(dev))
		return igdng_hdmi_detect(connector);

		temp = I915_READ(PORT_HOTPLUG_EN);

		switch (hdmi_priv->sdvox_reg) {
		@@ -268,8 +288,17 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
		/* Set up the DDC bus. */
		if (sdvox_reg == SDVOB)
		intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
		else
		else if (sdvox_reg == SDVOC)
		intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
		else if (sdvox_reg == HDMIB)
		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
		"HDMIB");
		else if (sdvox_reg == HDMIC)
		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
		"HDMIC");
		else if (sdvox_reg == HDMID)
		intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
		"HDMID");

		if (!intel_output->ddc_bus)
		goto err_connector;