Commit 5ca1493e authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Make ilk_load_luts() deal with degamma 



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: default avatarUma Shankar <uma.shankar@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-2-ville.syrjala@linux.intel.com
parent f5e674e9

drivers/gpu/drm/i915/display/intel_color.c

+4 −2
Original line number Diff line number Diff line
@@ -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);