This is a note to let you know that I've just added the patch titled
drm/amd/display: Only wait for blank completion if OTG active
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-only-wait-for-blank-completion-if-ot.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7fb2cc87c25fbe27a114c813b7134e79b8a1fd3f
Author: Aric Cyr <aric.cyr@xxxxxxx>
Date: Sat Feb 11 10:03:22 2023 -0500
drm/amd/display: Only wait for blank completion if OTG active
[ Upstream commit 82a10aff9428f1d190de55ef7971fdb84303cc7a ]
[why]
If OTG is not active, waiting for blank completion will always fail and
timeout resulting in unnecessary driver delays.
[how]
Check that OTG is enabled before waiting for blank.
Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Aric Cyr <aric.cyr@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index d4a1670a54506..f07cba121d010 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1093,7 +1093,8 @@ static void phantom_pipe_blank(
otg_active_height,
0);
- hws->funcs.wait_for_blank_complete(opp);
+ if (tg->funcs->is_tg_enabled(tg))
+ hws->funcs.wait_for_blank_complete(opp);
}
static void disable_dangling_plane(struct dc *dc, struct dc_state *context)
@@ -1156,6 +1157,7 @@ static void disable_dangling_plane(struct dc *dc, struct dc_state *context)
if (old_stream->mall_stream_config.type == SUBVP_PHANTOM) {
if (tg->funcs->enable_crtc) {
int main_pipe_width, main_pipe_height;
+
main_pipe_width = old_stream->mall_stream_config.paired_stream->dst.width;
main_pipe_height = old_stream->mall_stream_config.paired_stream->dst.height;
phantom_pipe_blank(dc, tg, main_pipe_width, main_pipe_height);
