diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index da49be0672d7..55d96656e54b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -61,6 +61,31 @@ void dp_enable_link_phy( { struct link_encoder *link_enc = link->link_enc; + struct pipe_ctx *pipes = + link->dc->current_context->res_ctx.pipe_ctx; + struct clock_source *dp_cs = + link->dc->res_pool->dp_clock_source; + unsigned int i; + /* If the current pixel clock source is not DTO(happens after + * switching from HDMI passive dongle to DP on the same connector), + * switch the pixel clock source to DTO. + */ + for (i = 0; i < MAX_PIPES; i++) { + if (pipes[i].stream != NULL && + pipes[i].stream->sink != NULL && + pipes[i].stream->sink->link == link) { + if (pipes[i].clock_source->id != CLOCK_SOURCE_ID_DP_DTO) { + pipes[i].clock_source = dp_cs; + pipes[i].pix_clk_params.requested_pix_clk = + pipes[i].stream->public.timing.pix_clk_khz; + pipes[i].clock_source->funcs->program_pix_clk( + pipes[i].clock_source, + &pipes[i].pix_clk_params, + &pipes[i].pll_settings); + } + } + } + if (dc_is_dp_sst_signal(signal)) { if (signal == SIGNAL_TYPE_EDP) { link_enc->funcs->power_control(link_enc, true); |