diff options
| author | Charlene Liu <charlene.liu@amd.com> | 2019-04-29 14:35:01 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:21:00 -0500 |
| commit | eed928dcd83ee8c80fa05013bbc019bc9e9e2a0e (patch) | |
| tree | 5fa0cdbe36dd6b5d7386de123887d27124e06d6a /drivers/gpu/drm/amd/display/dc/core/dc_link.c | |
| parent | 6476a7c8f03156883bb52605fb84a8ec0147849f (diff) | |
drm/amd/display: enabling stream after HPD low to high happened
[Why]
1. No real HPD plug in/out but HPD happens,
the driver notifies OS connection changed.
2. No display in target.
When HPD goes low to high,
the driver should regard as HPD and enter setmode flow.
[How]
In this case, even stream didn't change but still retrain.
Signed-off-by: Chiawen Huang <chiawen.huang@amd.com>
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 |
1 files changed, 3 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 9fbf926d5bf9..6b8dc72a7861 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -704,6 +704,7 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) if (new_connection_type != dc_connection_none) { link->type = new_connection_type; + link->link_state_valid = false; /* From Disconnected-to-Connected. */ switch (link->connector_signal) { @@ -2631,6 +2632,8 @@ void core_link_enable_stream( stream->phy_pix_clk, pipe_ctx->stream_res.audio != NULL); + pipe_ctx->stream->link->link_state_valid = true; + if (dc_is_dvi_signal(pipe_ctx->stream->signal)) pipe_ctx->stream_res.stream_enc->funcs->dvi_set_stream_attribute( pipe_ctx->stream_res.stream_enc, |