Commit e664609e authored by Anthony Wang's avatar Anthony Wang Committed by Alex Deucher
Browse files

drm/amd/display: enable audio on DP seamless boot 



[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: default avatarAnthony Wang <anthony1.wang@amd.com>
Acked-by: default avatarBindu Ramamurthy <bindu.r@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c6341f00

drivers/gpu/drm/amd/display/dc/core/dc_link.c

+10 −0
Original line number Diff line number Diff line
@@ -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