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drm/i915: Fix adl+ degamma LUT size

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The degamma LUT is interpolated so we need the 128th (==1.0)
entry to represent the full < 1.0 input range. Only the 129th
and 130th entries are strictly for the >=1.0 extended range
inputs.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221114153732.11773-7-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
This commit is contained in:
Ville Syrjälä 2022-11-14 17:37:18 +02:00
parent f1c87a94a1
commit 397d5c2c38
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_pci.c
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@ -948,7 +948,7 @@ static const struct intel_device_info adl_s_info = {
#define XE_LPD_FEATURES \
.display.abox_mask = GENMASK(1, 0), \
.display.color = { \
.degamma_lut_size = 128, .gamma_lut_size = 1024, \
.degamma_lut_size = 129, .gamma_lut_size = 1024, \
.degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING | \
DRM_COLOR_LUT_EQUAL_CHANNELS, \
}, \