From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Make ilk_load_luts() ready for a degamma lut. Currently we never
have one, but soon we may get one from readout, and I think we
may want to change the state computation such that we may end up
with one even when userspace has simply supplied a gamma lut.
At least the code now follows the path laid out by the ivb/bdw
counterpars.
Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_color.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 0c73b2ba1283..abaa1abab64d 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -649,13 +649,15 @@ static void ilk_load_luts(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
const struct drm_property_blob *gamma_lut = crtc_state->hw.gamma_lut;
+ const struct drm_property_blob *degamma_lut = crtc_state->hw.degamma_lut;
+ const struct drm_property_blob *blob = gamma_lut ?: degamma_lut;
switch (crtc_state->gamma_mode) {
case GAMMA_MODE_MODE_8BIT:
- ilk_load_lut_8(crtc, gamma_lut);
+ ilk_load_lut_8(crtc, blob);
break;
case GAMMA_MODE_MODE_10BIT:
- ilk_load_lut_10(crtc, gamma_lut);
+ ilk_load_lut_10(crtc, blob);
break;
default:
MISSING_CASE(crtc_state->gamma_mode);
--
2.35.1
