diff options
| author | Aric Cyr <aric.cyr@amd.com> | 2020-05-12 12:53:52 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-05-28 14:00:50 -0400 |
| commit | 68423dabadaaacdd9383653daa3d9102088b2c08 (patch) | |
| tree | d325928bcb3743477135bd7397ec73f0af6f0d9e /drivers/gpu/drm/amd/display | |
| parent | b236e048ec633a35b2a83d663f74c22ef04b9bab (diff) | |
drm/amd/display: Handle link loss interrupt better
[Why]
Link loss currently only retrains and re-enables the stream. This can
cause issues for some sinks.
[How]
When link loss occurs, the link and stream(s) should be completely
disabled and then reenabled.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 26 |
1 files changed, 9 insertions, 17 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 4b3a3e8b6401..fe4fd664f40c 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 @@ -2849,7 +2849,6 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd enum dc_status result; bool status = false; struct pipe_ctx *pipe_ctx; - struct dc_link_settings previous_link_settings; int i; if (out_link_loss) @@ -2928,32 +2927,25 @@ 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; } if (pipe_ctx == NULL || pipe_ctx->stream == NULL) return false; - previous_link_settings = link->cur_link_settings; - perform_link_training_with_retries(&previous_link_settings, - true, LINK_TRAINING_ATTEMPTS, - pipe_ctx, - pipe_ctx->stream->signal); - - 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->dpms_off && + pipe_ctx->stream->link == link) + core_link_disable_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) - link->dc->hwss.unblank_stream(pipe_ctx, &previous_link_settings); + if (pipe_ctx && pipe_ctx->stream && !pipe_ctx->stream->dpms_off && + pipe_ctx->stream->link == link) + core_link_enable_stream(link->dc->current_state, pipe_ctx); } status = false; |