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

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

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 81d7681faa638f1c7879b5cd0aafb3f56a948adf..fdff1d420c14ab3536717607975c6cfa273fb474 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1631,6 +1631,10 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
 
        pipe_config->adjusted_mode.flags |= flags;
 
+       if (!HAS_PCH_SPLIT(dev) && !IS_VALLEYVIEW(dev) &&
+           tmp & DP_COLOR_RANGE_16_235)
+               pipe_config->limited_color_range = true;
+
        pipe_config->has_dp_encoder = true;
 
        intel_dp_get_m_n(crtc, pipe_config);