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| author |   Wenjing Liu <wenjing.liu@amd.com> | 2022-09-15 15:23:38 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-09-29 09:41:45 -0400 |
| commit | e32df0c7ecead95d70ca89f39b1b2b02a59ff691 (patch) | |
| tree | cc4d1f382b47583d948dca7d0911551165692efc | |
| parent | drm/amd/display: Fix CAB allocation calculation (diff) | |
| download | linux-dev-e32df0c7ecead95d70ca89f39b1b2b02a59ff691.tar.xz linux-dev-e32df0c7ecead95d70ca89f39b1b2b02a59ff691.zip | |
drm/amd/display: polling vid stream status in hpo dp blank
[why]
vid stream control is double bufferred, if we don't wait for video
stream enable set to 0, we may get temporary image corruption
showing on the stream when setting PIXEL_TO_SYMBOL_FIFO_ENABLE to 0.
Reviewed-by: Ariel Bernstein <Eric.Bernstein@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c index 23621ff08c90..52fb2bf3d578 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c @@ -150,9 +150,9 @@ static void dcn31_hpo_dp_stream_enc_dp_blank( * 10us*5000=50ms. This covers 41.7ms of minimum 24 Hz mode + * a little more because we may not trust delay accuracy. */ - //REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL, - // VID_STREAM_STATUS, 0, - // 10, 5000); + REG_WAIT(DP_SYM32_ENC_VID_STREAM_CONTROL, + VID_STREAM_STATUS, 0, + 10, 5000); /* Disable SDP tranmission */ REG_UPDATE(DP_SYM32_ENC_SDP_CONTROL, |