[SRU][P][PATCH 1/1] drm/amd/display: limit clear_update_flags to dcn32 and above

[En-Wei Wu]

From: Charlene Liu <Charlene.Liu at amd.com>

BugLink: https://bugs.launchpad.net/bugs/2116908

[why]
dc has some code out of sync:
dc_commit_updates_for_stream handles v1/v2/v3,
but dc_update_planes_and_stream makes v1 asic to use v2.

as a reression fix: limit clear_update_flags to dcn32 or newer asic.
need to follow up that v1 asic using v2 issue.

Reviewed-by: Syed Hassan <syed.hassan at amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu at amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
(cherry picked from commit f354556e29f40ef44fa8b13dc914817db3537e20)
Signed-off-by: En-Wei Wu <en-wei.wu at canonical.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 4683c7ef4507..1ce4bf6857f0 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -5282,8 +5282,7 @@ bool dc_update_planes_and_stream(struct dc *dc,
 	else
 		ret = update_planes_and_stream_v2(dc, srf_updates,
 			surface_count, stream, stream_update);
-
-	if (ret)
+	if (ret && dc->ctx->dce_version >= DCN_VERSION_3_2)
 		clear_update_flags(srf_updates, surface_count, stream);
 
 	return ret;
@@ -5314,7 +5313,7 @@ void dc_commit_updates_for_stream(struct dc *dc,
 		ret = update_planes_and_stream_v1(dc, srf_updates, surface_count, stream,
 				stream_update, state);
 
-	if (ret)
+	if (ret && dc->ctx->dce_version >= DCN_VERSION_3_2)
 		clear_update_flags(srf_updates, surface_count, stream);
 }
 
-- 
2.43.0