diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 33 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 1 |
3 files changed, 36 insertions, 5 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 e5807be78edb..260c0b62d37d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2873,6 +2873,39 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx) return DC_OK; } + +enum dc_status dc_link_reallocate_mst_payload(struct dc_link *link) +{ + int i; + struct pipe_ctx *pipe_ctx; + + // Clear all of MST payload then reallocate + 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 && + pipe_ctx->stream->dpms_off == false && + pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { + deallocate_mst_payload(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 && + pipe_ctx->stream->dpms_off == false && + pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { + /* enable/disable PHY will clear connection between BE and FE + * need to restore it. + */ + link->link_enc->funcs->connect_dig_be_to_fe(link->link_enc, + pipe_ctx->stream_res.stream_enc->id, true); + dc_link_allocate_mst_payload(pipe_ctx); + } + } + + return DC_OK; +} + #if defined(CONFIG_DRM_AMD_DC_HDCP) static void update_psp_stream_config(struct pipe_ctx *pipe_ctx, bool dpms_off) { 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 2124bc10fc53..6ab298c65247 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 @@ -2901,11 +2901,8 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd pipe_ctx, pipe_ctx->stream->signal); - if (pipe_ctx && pipe_ctx->stream && pipe_ctx->stream->link == link && - pipe_ctx->stream->dpms_off == false && - pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { - dc_link_allocate_mst_payload(pipe_ctx); - } + if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) + dc_link_reallocate_mst_payload(link); status = false; if (out_link_loss) diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index f9aae35aec92..d25603128394 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -205,6 +205,7 @@ enum dc_detect_reason { bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason); bool dc_link_get_hpd_state(struct dc_link *dc_link); enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx); +enum dc_status dc_link_reallocate_mst_payload(struct dc_link *link); /* Notify DC about DP RX Interrupt (aka Short Pulse Interrupt). * Return: |