diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 74 |
2 files changed, 77 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 1db6b4bf68fd..c9f9d3d3adba 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6061,6 +6061,9 @@ enum skl_disp_power_wells { #define _VIDEO_DIP_CTL_A 0xe0200 #define _VIDEO_DIP_DATA_A 0xe0208 #define _VIDEO_DIP_GCP_A 0xe0210 +#define GCP_COLOR_INDICATION (1 << 2) +#define GCP_DEFAULT_PHASE_ENABLE (1 << 1) +#define GCP_AV_MUTE (1 << 0) #define _VIDEO_DIP_CTL_B 0xe1200 #define _VIDEO_DIP_DATA_B 0xe1208 diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 9ee6176a5f27..a422d83b6efb 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -541,6 +541,66 @@ static void g4x_set_infoframes(struct drm_encoder *encoder, intel_hdmi_set_hdmi_infoframe(encoder, adjusted_mode); } +static bool hdmi_sink_is_deep_color(struct drm_encoder *encoder) +{ + struct drm_device *dev = encoder->dev; + struct drm_connector *connector; + + WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + + /* + * HDMI cloning is only supported on g4x which doesn't + * support deep color or GCP infoframes anyway so no + * need to worry about multiple HDMI sinks here. + */ + list_for_each_entry(connector, &dev->mode_config.connector_list, head) + if (connector->encoder == encoder) + return connector->display_info.bpc > 8; + + return false; +} + +static bool intel_hdmi_set_gcp_infoframe(struct drm_encoder *encoder) +{ + struct drm_i915_private *dev_priv = encoder->dev->dev_private; + struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); + u32 reg, val = 0; + + if (HAS_DDI(dev_priv)) + reg = HSW_TVIDEO_DIP_GCP(crtc->config->cpu_transcoder); + else if (IS_VALLEYVIEW(dev_priv)) + reg = VLV_TVIDEO_DIP_GCP(crtc->pipe); + else if (HAS_PCH_SPLIT(dev_priv->dev)) + reg = TVIDEO_DIP_GCP(crtc->pipe); + else + return false; + + /* Indicate color depth whenever the sink supports deep color */ + if (hdmi_sink_is_deep_color(encoder)) + val |= GCP_COLOR_INDICATION; + + I915_WRITE(reg, val); + + return val != 0; +} + +static void intel_disable_gcp_infoframe(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = crtc->base.dev->dev_private; + u32 reg; + + if (HAS_DDI(dev_priv)) + reg = HSW_TVIDEO_DIP_CTL(crtc->config->cpu_transcoder); + else if (IS_VALLEYVIEW(dev_priv)) + reg = VLV_TVIDEO_DIP_CTL(crtc->pipe); + else if (HAS_PCH_SPLIT(dev_priv->dev)) + reg = TVIDEO_DIP_CTL(crtc->pipe); + else + return; + + I915_WRITE(reg, I915_READ(reg) & ~VIDEO_DIP_ENABLE_GCP); +} + static void ibx_set_infoframes(struct drm_encoder *encoder, bool enable, struct drm_display_mode *adjusted_mode) @@ -581,6 +641,9 @@ static void ibx_set_infoframes(struct drm_encoder *encoder, val &= ~(VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | VIDEO_DIP_ENABLE_GCP); + if (intel_hdmi_set_gcp_infoframe(encoder)) + val |= VIDEO_DIP_ENABLE_GCP; + I915_WRITE(reg, val); POSTING_READ(reg); @@ -618,6 +681,9 @@ static void cpt_set_infoframes(struct drm_encoder *encoder, val &= ~(VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | VIDEO_DIP_ENABLE_GCP); + if (intel_hdmi_set_gcp_infoframe(encoder)) + val |= VIDEO_DIP_ENABLE_GCP; + I915_WRITE(reg, val); POSTING_READ(reg); @@ -666,6 +732,9 @@ static void vlv_set_infoframes(struct drm_encoder *encoder, val &= ~(VIDEO_DIP_ENABLE_AVI | VIDEO_DIP_ENABLE_VENDOR | VIDEO_DIP_ENABLE_GAMUT | VIDEO_DIP_ENABLE_GCP); + if (intel_hdmi_set_gcp_infoframe(encoder)) + val |= VIDEO_DIP_ENABLE_GCP; + I915_WRITE(reg, val); POSTING_READ(reg); @@ -695,6 +764,9 @@ static void hsw_set_infoframes(struct drm_encoder *encoder, val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | VIDEO_DIP_ENABLE_GMP_HSW); + if (intel_hdmi_set_gcp_infoframe(encoder)) + val |= VIDEO_DIP_ENABLE_GCP_HSW; + I915_WRITE(reg, val); POSTING_READ(reg); @@ -960,6 +1032,8 @@ static void intel_disable_hdmi(struct intel_encoder *encoder) I915_WRITE(intel_hdmi->hdmi_reg, temp); POSTING_READ(intel_hdmi->hdmi_reg); } + + intel_disable_gcp_infoframe(to_intel_crtc(encoder->base.crtc)); } static void g4x_disable_hdmi(struct intel_encoder *encoder) |