From: Yu-Ting Shen <Yu-ting.Shen@amd.com>
Date: Tue, 6 Oct 2020 05:36:56 +0000 (+0800)
Subject: drm/amd/display: disable seamless boot for VSC_SDP
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=da52f579d9481b71525bf23838284db1338163a6;p=linux.git

drm/amd/display: disable seamless boot for VSC_SDP

[WHY]
VBIOS will not enable VSC_SDP during pre-OS to lead
MISC1[6] wasn't matched with driver.

[HOW]
disabled seamless boot if sink supports VSC_SDP

Signed-off-by: Yu-Ting Shen <Yu-ting.Shen@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 8f4738b099229..21423ebc9c041 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1264,6 +1264,10 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
 			return false;
 	}
 
+	if (link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED) {
+		return false;
+	}
+
 	return true;
 }