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authorVille Syrjälä <ville.syrjala@linux.intel.com>2014-09-12 15:46:29 +0300
committerJani Nikula <jani.nikula@intel.com>2014-09-18 14:52:14 +0300
commit8c875fca1a8d76665c60fa141c220cee65f44f5e (patch)
tree91da5458a26495d4e9a354f8fe1e584b45feb72a /drivers/gpu/drm/i915/intel_dp.c
parent611a7a4fd8b5fb6b25ab1f8bdcde61800a7feacf (diff)
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drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv
The limited color range knob is in the port registers on g4x and vlv/chv for HDMI, and on g4x for DP. Add the relevant code to read out the hardware state into pipe config. On vlv/chv the DP port limited color range knob is in PIPECONF for which we already have readout code. Cc: Chris Clayton <chris2553@googlemail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: Chris Clayton <chris2553@googlemail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 81d7681faa63..fdff1d420c14 100644
--- 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);
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