From: Yihan Zhu <yihan.zhu@amd.com>
Date: Thu, 19 Oct 2023 18:23:17 +0000 (-0400)
Subject: drm/amd/display: DCN35 Disable cm power optimization
X-Git-Tag: v6.7-rc1~8^2^2~54
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85de32cd7b383f5d84195aed0c53e920e6786005;p=thirdparty%2Fkernel%2Flinux.git

drm/amd/display: DCN35 Disable cm power optimization

[WHY & HOW]
Enabling SCE after boot up will cause color distortion.

Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Yihan Zhu <yihan.zhu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c
index 9699adf52e156..e35d4c028d018 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn35/dcn35_resource.c
@@ -708,7 +708,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 			.i2c = true,
 			.dmcu = false, // This is previously known to cause hang on S3 cycles if enabled
 			.dscl = true,
-			.cm = true,
+			.cm = false,
 			.mpc = true,
 			.optc = true,
 			.vpg = true,