From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 211913be40ce..c50841e36c61 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -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, \
}, \
--
2.37.4
