diff options
| author | Xiaodong Yan <Xiaodong.Yan@amd.com> | 2020-04-09 11:37:40 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-24 15:41:31 +0200 |
| commit | 718a5569b6fa6e1f49f1ae76a3c18acb4ddb74f1 (patch) | |
| tree | e572cb9f5c4a823020b8794dfadc97c8ae85c72b /drivers | |
| parent | drm/amd/display: DispalyPort: Write OUI only if panel supports it (diff) | |
| download | linux-718a5569b6fa6e1f49f1ae76a3c18acb4ddb74f1.tar.xz linux-718a5569b6fa6e1f49f1ae76a3c18acb4ddb74f1.zip | |
drm/amd/display: blank dp stream before re-train the link
[Why]
When link loss happened, monitor can not light up if only re-train the
link.
[How]
Blank all the DP streams on this link before re-train the link, and then
unblank the stream
Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index aaa86f015ec0..27a7d2a58079 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -2911,6 +2911,12 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd for (i = 0; i < MAX_PIPES; i++) { pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link) + link->dc->hwss.blank_stream(pipe_ctx); + } + + for (i = 0; i < MAX_PIPES; i++) { + pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; + if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link) break; } @@ -2927,6 +2933,12 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) dc_link_reallocate_mst_payload(link); + for (i = 0; i < MAX_PIPES; i++) { + pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i]; + if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link) + link->dc->hwss.unblank_stream(pipe_ctx, &previous_link_settings); + } + status = false; if (out_link_loss) *out_link_loss = true; |