drm/amd/display: Save HDMI gaming info to edid caps

[Why]
We need info about these features in parts of the driver where fishing
for drm_connector struct is infeasible.

[How]
Add three new fields to dc_edid_caps and fill them if connected device
is HDMI based on it's EDID

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Author: Lawstorant

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

@@ -137,7 +137,12 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
 				  edid_caps->display_name,
 				  AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
 
-	edid_caps->edid_hdmi = connector->display_info.is_hdmi;
+	if (connector->display_info.is_hdmi) {
+		edid_caps->edid_hdmi = true;
+		edid_caps->allm = connector->display_info.hdmi.allm;
+		edid_caps->fva = connector->display_info.hdmi.vrr_cap.fva;
+		edid_caps->hdmi_vrr = connector->display_info.hdmi.vrr_cap.supported;
+	}
 
 	if (edid_caps->edid_hdmi)
 		populate_hdmi_info_from_connector(&connector->display_info.hdmi, edid_caps);

drivers/gpu/drm/amd/display/dc/dc_types.h

@@ -210,9 +210,14 @@ struct dc_edid_caps {
 
 	uint32_t max_tmds_clk_mhz;
 
-	/*HDMI 2.0 caps*/
+	/* HDMI 2.0 caps */
 	bool lte_340mcsc_scramble;
 
+	/* HDMI 2.1 caps */
+	bool allm;
+	bool fva;
+	bool hdmi_vrr;
+
 	bool edid_hdmi;
 	bool hdr_supported;
 	bool rr_capable;