From: Ville Syrjälä Date: Mon, 14 Nov 2022 15:37:24 +0000 (+0200) Subject: drm/i915: Make ilk_read_luts() capable of degamma readout X-Git-Tag: v6.6.7~1918^2~17^2~799 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d2559299d339a2dfa4d1f14978e629669cf4b1d7;p=platform%2Fkernel%2Flinux-starfive.git drm/i915: Make ilk_read_luts() capable of degamma readout Just like ivb+, ilk/snb can select whether the hw lut acts as gamma or degamma. Make the readout cognizant of that fact. v2: deal with pre_csc_lut v3: use ilk_has_post_csc_lut() helper Reviewed-by: Uma Shankar Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20221114153732.11773-13-ville.syrjala@linux.intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index 583a933..ef17183 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -2176,19 +2176,19 @@ static struct drm_property_blob *ilk_read_lut_10(struct intel_crtc *crtc) static void ilk_read_luts(struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_property_blob **blob = + ilk_has_post_csc_lut(crtc_state) ? + &crtc_state->post_csc_lut : &crtc_state->pre_csc_lut; if (!crtc_state->gamma_enable) return; - if ((crtc_state->csc_mode & CSC_POSITION_BEFORE_GAMMA) == 0) - return; - switch (crtc_state->gamma_mode) { case GAMMA_MODE_MODE_8BIT: - crtc_state->post_csc_lut = ilk_read_lut_8(crtc); + *blob = ilk_read_lut_8(crtc); break; case GAMMA_MODE_MODE_10BIT: - crtc_state->post_csc_lut = ilk_read_lut_10(crtc); + *blob = ilk_read_lut_10(crtc); break; default: MISSING_CASE(crtc_state->gamma_mode);