From: Anthony Wang <[email protected]> [Why] Some external displays with DP can use seamless boot, but their audio endpoints are only enabled after hotplug. On boot, these displays inherit UEFI timings without properly initializing audio.
[How] Enable display audio when seamless booting with an external monitor over DP. Signed-off-by: Anthony Wang <[email protected]> Acked-by: Bindu Ramamurthy <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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 fa5059f71727..81ad546b2098 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -3258,6 +3258,16 @@ void core_link_enable_stream( /* Do not touch link on seamless boot optimization. */ if (pipe_ctx->stream->apply_seamless_boot_optimization) { pipe_ctx->stream->dpms_off = false; + + /* Still enable stream features & audio on seamless boot for DP external displays */ + if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT) { + enable_stream_features(pipe_ctx); + if (pipe_ctx->stream_res.audio != NULL) { + pipe_ctx->stream_res.stream_enc->funcs->dp_audio_enable(pipe_ctx->stream_res.stream_enc); + dc->hwss.enable_audio_stream(pipe_ctx); + } + } + #if defined(CONFIG_DRM_AMD_DC_HDCP) update_psp_stream_config(pipe_ctx, false); #endif -- 2.25.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
