From: jsg <jsg@openbsd.org>
Date: Mon, 27 Feb 2023 02:01:38 +0000 (+0000)
Subject: drm/edid: Fix minimum bpc supported with DSC1.2 for HDMI sink
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=01f821cd2342001c6e0d821eeb1d7bdf61bcb062;p=openbsd

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 cb0af3084ef..77c6e5ab31e 100644
--- 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,