diff options
| author | Harry Wentland <harry.wentland@amd.com> | 2022-11-02 16:06:30 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-03 15:41:58 -0400 |
| commit | 01aaeb8c23301194ee063d89c06eae41599698af (patch) | |
| tree | 6af48b4f979c73b1d03047e8c30dbad561c956c2 /drivers | |
| parent | a5f9523c9ca352d6454e81ff9e9a4419f457210a (diff) | |
drm/amd/display: Create fake sink and stream for writeback connector
[WHAT]
Writeback connectors don't have a physical sink but DC still
needs a sink to function. Create a fake sink and stream for
writeback connectors
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index ed7aecfeaba1..2b277f3a7291 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5755,13 +5755,13 @@ decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, } static struct dc_sink * -create_fake_sink(struct amdgpu_dm_connector *aconnector) +create_fake_sink(struct dc_link *link) { struct dc_sink_init_data sink_init_data = { 0 }; struct dc_sink *sink = NULL; - sink_init_data.link = aconnector->dc_link; - sink_init_data.sink_signal = aconnector->dc_link->connector_signal; + sink_init_data.link = link; + sink_init_data.sink_signal = link->connector_signal; sink = dc_sink_create(&sink_init_data); if (!sink) { @@ -6132,6 +6132,7 @@ create_stream_for_sink(struct drm_connector *connector, enum color_transfer_func tf = TRANSFER_FUNC_UNKNOWN; struct dsc_dec_dpcd_caps dsc_caps; + struct dc_link *link = NULL; struct dc_sink *sink = NULL; drm_mode_init(&mode, drm_mode); @@ -6145,14 +6146,24 @@ create_stream_for_sink(struct drm_connector *connector, if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK) { aconnector = NULL; aconnector = to_amdgpu_dm_connector(connector); - if (!aconnector->dc_sink) { - sink = create_fake_sink(aconnector); - if (!sink) - return stream; - } else { - sink = aconnector->dc_sink; - dc_sink_retain(sink); - } + link = aconnector->dc_link; + } else { + struct drm_writeback_connector *wbcon = NULL; + struct amdgpu_dm_wb_connector *dm_wbcon = NULL; + + wbcon = drm_connector_to_writeback(connector); + dm_wbcon = to_amdgpu_dm_wb_connector(wbcon); + link = dm_wbcon->link; + } + + if (!aconnector || !aconnector->dc_sink) { + sink = create_fake_sink(link); + if (!sink) + return stream; + + } else { + sink = aconnector->dc_sink; + dc_sink_retain(sink); } stream = dc_create_stream_for_sink(sink); |