drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_hdmi.c

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index f9151f6641d9ba5b2ad6ebd341853378a2132fa2..ca34de7f6a7b7495da4378e9322d0044a0771333 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -712,7 +712,8 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
                                  struct intel_crtc_config *pipe_config)
 {
        struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
-       struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
+       struct drm_device *dev = encoder->base.dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
        u32 tmp, flags = 0;
        int dotclock;
 
@@ -734,6 +735,10 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
        if (tmp & HDMI_MODE_SELECT_HDMI)
                pipe_config->has_audio = true;
 
+       if (!HAS_PCH_SPLIT(dev) &&
+           tmp & HDMI_COLOR_RANGE_16_235)
+               pipe_config->limited_color_range = true;
+
        pipe_config->adjusted_mode.flags |= flags;
 
        if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc)