Only Enable Logarithmic Gamma if client caps for advance gamma mode
is enabled. Fallback to 10bit gamma in case its not supported.
Signed-off-by: Uma Shankar <uma.shan...@intel.com>
---
drivers/gpu/drm/i915/display/intel_color.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c
b/drivers/gpu/drm/i915/display/intel_color.c
index cae96fbec1a7..18b51b9cc2aa 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -1606,13 +1606,17 @@ static u32 icl_gamma_mode(const struct intel_crtc_state
*crtc_state)
gamma_mode |= POST_CSC_GAMMA_ENABLE;
if (!crtc_state->hw.gamma_lut ||
- crtc_state_is_legacy_gamma(crtc_state))
+ crtc_state_is_legacy_gamma(crtc_state)) {
gamma_mode |= GAMMA_MODE_MODE_8BIT;
- else if (crtc_state->uapi.gamma_mode_type ==
- GAMMA_MODE_LOGARITHMIC_12BIT)
- gamma_mode |= GAMMA_MODE_MODE_12BIT_LOGARITHMIC;
- else
+ } else if (crtc_state->uapi.gamma_mode_type ==
+ GAMMA_MODE_LOGARITHMIC_12BIT) {
+ if (crtc_state->uapi.advance_gamma_mode_active)
+ gamma_mode |= GAMMA_MODE_MODE_12BIT_LOGARITHMIC;
+ else
+ gamma_mode |= GAMMA_MODE_MODE_10BIT;
+ } else {
gamma_mode |= GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED;
+ }
return gamma_mode;
}
--
2.26.2
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