[PATCH 5.15 27/37] drm/amd/display: skip audio setup when audio stream is enabled

From: Greg Kroah-Hartman
Date: Mon Oct 10 2022 - 03:17:22 EST


From: zhikzhai <zhikai.zhai@xxxxxxx>

[ Upstream commit 65fbfb02c2734cacffec5e3f492e1b4f1dabcf98 ]

[why]
We have minimal pipe split transition method to avoid pipe
allocation outage.However, this method will invoke audio setup
which cause audio output stuck once pipe reallocate.

[how]
skip audio setup for pipelines which audio stream has been enabled

Reviewed-by: Charlene Liu <Charlene.Liu@xxxxxxx>
Acked-by: Wayne Lin <wayne.lin@xxxxxxx>
Signed-off-by: zhikzhai <zhikai.zhai@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 62d595ded866..46d7e75e4553 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2108,7 +2108,8 @@ static void dce110_setup_audio_dto(
continue;
if (pipe_ctx->stream->signal != SIGNAL_TYPE_HDMI_TYPE_A)
continue;
- if (pipe_ctx->stream_res.audio != NULL) {
+ if (pipe_ctx->stream_res.audio != NULL &&
+ pipe_ctx->stream_res.audio->enabled == false) {
struct audio_output audio_output;

build_audio_output(context, pipe_ctx, &audio_output);
@@ -2156,7 +2157,8 @@ static void dce110_setup_audio_dto(
if (!dc_is_dp_signal(pipe_ctx->stream->signal))
continue;

- if (pipe_ctx->stream_res.audio != NULL) {
+ if (pipe_ctx->stream_res.audio != NULL &&
+ pipe_ctx->stream_res.audio->enabled == false) {
struct audio_output audio_output;

build_audio_output(context, pipe_ctx, &audio_output);
--
2.35.1