From: Chiawen Huang <chiawen.huang@amd.com>
Date: Fri, 25 Apr 2025 03:45:36 +0000 (+0800)
Subject: drm/amd/display: Skip backend validation for virtual monitors
X-Git-Tag: v6.16-rc1~144^2~5^2~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eee5e5b35821a09567b21f092324d3aee78bdd44;p=thirdparty%2Flinux.git

drm/amd/display: Skip backend validation for virtual monitors

[Why&How]
Virtual monitors are now being validated during set_mode.
Virtual monitors should not undergo backend validation,
as the backend is intended only for physical monitors.
Virtual sinks have no real backend part information and
should be excluded from this validation.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Chiawen Huang <chiawen.huang@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@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/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 608aa2d7d0861..56d011a1323cf 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2334,11 +2334,15 @@ enum dc_status dc_commit_streams(struct dc *dc, struct dc_commit_streams_params
 	for (i = 0; i < params->stream_count; i++) {
 		struct dc_stream_state *stream = params->streams[i];
 		struct dc_stream_status *status = dc_stream_get_status(stream);
+		struct dc_sink *sink = stream->sink;
 
 		/* revalidate streams */
-		res = dc_validate_stream(dc, stream);
-		if (res != DC_OK)
-			return res;
+		if (!dc_is_virtual_signal(sink->sink_signal)) {
+			res = dc_validate_stream(dc, stream);
+			if (res != DC_OK)
+				return res;
+		}
+
 
 		dc_stream_log(dc, stream);