drm/i915/dp: Add TCON HDR capability checks

Add checks to see the HDR capability of TCON panel.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240507040407.1056061-4-suraj.kandpal@intel.com

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -401,6 +401,11 @@ struct intel_panel {
 			} vesa;
 			struct {
 				bool sdr_uses_aux;
+				bool supports_2084_decode;
+				bool supports_2020_gamut;
+				bool supports_segmented_backlight;
+				bool supports_sdp_colorimetry;
+				bool supports_tone_mapping;
 			} intel_cap;
 		} edp;
 

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

@@ -158,6 +158,16 @@ intel_dp_aux_supports_hdr_backlight(struct intel_connector *connector)
 
 	panel->backlight.edp.intel_cap.sdr_uses_aux =
 		tcon_cap[2] & INTEL_EDP_SDR_TCON_BRIGHTNESS_AUX_CAP;
+	panel->backlight.edp.intel_cap.supports_2084_decode =
+		tcon_cap[1] & INTEL_EDP_HDR_TCON_2084_DECODE_CAP;
+	panel->backlight.edp.intel_cap.supports_2020_gamut =
+		tcon_cap[1] & INTEL_EDP_HDR_TCON_2020_GAMUT_CAP;
+	panel->backlight.edp.intel_cap.supports_segmented_backlight =
+		tcon_cap[1] & INTEL_EDP_HDR_TCON_SEGMENTED_BACKLIGHT_CAP;
+	panel->backlight.edp.intel_cap.supports_sdp_colorimetry =
+		tcon_cap[1] & INTEL_EDP_HDR_TCON_SDP_COLORIMETRY_CAP;
+	panel->backlight.edp.intel_cap.supports_tone_mapping =
+		tcon_cap[1] & INTEL_EDP_HDR_TCON_TONE_MAPPING_CAP;
 
 	return true;
 }