drm/i915/dp: Fix DFP rgb->ycbcr conversion matrix

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Our YCbCr output is always supposed to be limited range BT.709.
That's what we send with native HDMI. The conn_state->colorspace
stuff is entirely independent of that and is not supposed to alter
the generated output in any way. If we want a way to do that then
we need a new proprty for it.

Make it so that the RGB->YCbCr conversion when performed by the
DPF will match the BT.709 we would transmit with native HDMI.

Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220322120015.28074-12-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

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This commit is contained in:

Ville Syrjälä 2022-03-22 14:00:14 +02:00

parent 56185b9048

commit af65840f19

1 changed files with 3 additions and 35 deletions

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drivers/gpu/drm/i915/display/intel_dp.c

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