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drm/i915: Expose crtc CTM property on ilk/snb

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The ilk/snb code is internally fully capable of handling the
CTM property, so expose it.

Note that we still choose not to expose DEGAMMA_LUT though.
The hardware is capable if degamma or gamma, but not both
simultanously due to lack of the split gamma mode. Exposing
both LUTs might encourage userspace to try enabling both
at the same time.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413164916.4221-3-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
This commit is contained in:
Ville Syrjälä 2023-04-13 19:49:11 +03:00
parent 35c812050e
commit d9ce4e4307
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/display/intel_color.c
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@ -3473,7 +3473,7 @@ void intel_color_crtc_init(struct intel_crtc *crtc)
gamma_lut_size = DISPLAY_INFO(i915)->color.gamma_lut_size;
degamma_lut_size = DISPLAY_INFO(i915)->color.degamma_lut_size;
has_ctm = degamma_lut_size != 0;
has_ctm = DISPLAY_VER(i915) >= 5 && !IS_VALLEYVIEW(i915);
/*
* "DPALETTE_A: NOTE: The 8-bit (non-10-bit) mode is the