[Intel-gfx] [PATCH 1/2] drm/i915: Declare .(de)gamma_lut_tests for icl+

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

All interpolated gamma modes including the icl+ multi segment
mode require non-decreasing entries for the interpolation to
work correctly. For some reason we're forgetting to declare
that for icl+. Let us do so.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/3916
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_pci.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 169837de395d..7655c7a4f904 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -145,6 +145,12 @@
 		   .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING | \
 					DRM_COLOR_LUT_EQUAL_CHANNELS, \
 	}
+#define ICL_COLORS \
+	.color = { .degamma_lut_size = 33, .gamma_lut_size = 262145, \
+		   .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING | \
+					DRM_COLOR_LUT_EQUAL_CHANNELS, \
+		   .gamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \
+	}
 
 /* Keep in gen based order, and chronological order within a gen */
 
@@ -811,7 +817,7 @@ static const struct intel_device_info cml_gt2_info = {
 		[TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \
 	}, \
 	GEN(11), \
-	.color = { .degamma_lut_size = 33, .gamma_lut_size = 262145 }, \
+	ICL_COLORS, \
 	.dbuf.size = 2048, \
 	.dbuf.slice_mask = BIT(DBUF_S1) | BIT(DBUF_S2), \
 	.display.has_dsc = 1, \
-- 
2.32.0