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

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[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 <anthony1.wang@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Anthony Wang 2021-02-10 09:08:26 -05:00 committed by Alex Deucher
parent c6341f008a
commit e664609e43
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -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