drm/edid: Fix minimum bpc supported with DSC1.2 for HDMI sink

From Ankit Nautiyal
0deb50618944aed143269214daea0ba2ddf2222d in linux-6.1.y/6.1.14
18feaf6d0784dcba888859109676adf1e0260dfd in mainline linux

diff --git a/sys/dev/pci/drm/drm_edid.c b/sys/dev/pci/drm/drm_edid.c
index cb0af30..77c6e5a 100644 (file)
--- a/sys/dev/pci/drm/drm_edid.c
+++ b/sys/dev/pci/drm/drm_edid.c
@@ -5857,7 +5857,8 @@ static void drm_parse_hdmi_forum_scds(struct drm_connector *connector,
                        else if (hf_scds[11] & DRM_EDID_DSC_10BPC)
                                hdmi_dsc->bpc_supported = 10;
                        else
-                               hdmi_dsc->bpc_supported = 0;
+                               /* Supports min 8 BPC if DSC 1.2 is supported*/
+                               hdmi_dsc->bpc_supported = 8;
 
                        dsc_max_frl_rate = (hf_scds[12] & DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
                        drm_get_max_frl_rate(dsc_max_frl_rate, &hdmi_dsc->max_lanes,