diff options
| author | Nicholas Kazlauskas | 2022-12-06 16:10:22 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-03-10 09:33:55 +0100 |
| commit | efb332a2037bdb3f49c42c0b895241383024c06b (patch) | |
| tree | ea7e34c66f4aabf289370072f57d762ce87758d9 | |
| parent | dbe9140ed6bf98864489c5794d0a6f5cfd371fea (diff) | |
drm/amd/display: Defer DIG FIFO disable after VID stream enable
[ Upstream commit 2d90a1c054831338d57b39aec4d273cf3e867590 ]
[Why]
On some monitors we see a brief flash of corruption during the
monitor disable sequence caused by FIFO being disabled in the middle
of an active DP stream.
[How]
Wait until DP vid stream is disabled before turning off the FIFO.
The FIFO reset on DP unblank should take care of clearing any FIFO
error, if any.
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Syed Hassan <Syed.Hassan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c index 38842f938bed..0926db018338 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dio_stream_encoder.c @@ -278,10 +278,10 @@ static void enc314_stream_encoder_dp_blank( struct dc_link *link, struct stream_encoder *enc) { - /* New to DCN314 - disable the FIFO before VID stream disable. */ - enc314_disable_fifo(enc); - enc1_stream_encoder_dp_blank(link, enc); + + /* Disable FIFO after the DP vid stream is disabled to avoid corruption. */ + enc314_disable_fifo(enc); } static void enc314_stream_encoder_dp_unblank( |