diff options
| author | Jaehyun Chung <jaehyun.chung@amd.com> | 2020-02-11 19:19:41 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-25 19:08:27 +0300 |
| commit | dc326f61c51df641fbf4f42303e860f53ea163c1 (patch) | |
| tree | e934d8b398aade0d9333e8ac77d105e812d50fa5 | |
| parent | b01f22ec88103d781f27aadb29277a35302db083 (diff) | |
| download | linux-dc326f61c51df641fbf4f42303e860f53ea163c1.tar.xz | |
drm/amd/display: Monitor patch to delay setting ignore MSA bit
[Why]
Some displays clear ignore MSA bit on mode change, which cause
blackscreen when programming variable vtotals. Ignore MSA bit needs
programming needs to be delayed or re-set to be retained.
[How]
Create patch to delay programming ignore MSA bit after unblanking
stream.
Signed-off-by: Jaehyun Chung <jaehyun.chung@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_types.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index a3bfa05c545e..3420d098d771 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -3095,6 +3095,9 @@ void core_link_enable_stream( dc->hwss.unblank_stream(pipe_ctx, &pipe_ctx->stream->link->cur_link_settings); + if (stream->link->local_sink->edid_caps.panel_patch.delay_ignore_msa > 0) + msleep(stream->link->local_sink->edid_caps.panel_patch.delay_ignore_msa); + if (dc_is_dp_signal(pipe_ctx->stream->signal)) enable_stream_features(pipe_ctx); #if defined(CONFIG_DRM_AMD_DC_HDCP) diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 1490732a4b44..299f6e00f576 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -230,6 +230,7 @@ struct dc_panel_patch { unsigned int extra_delay_backlight_off; unsigned int extra_t7_ms; unsigned int skip_scdc_overwrite; + unsigned int delay_ignore_msa; }; struct dc_edid_caps { |