linux-kernel - [PATCH 5.10 28/54] drm/amd/display: skip audio setup when audio stream is enabled

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Message-Id: <20221013175148.038906183@linuxfoundation.org>
Date:   Thu, 13 Oct 2022 19:52:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Charlene Liu <Charlene.Liu@....com>,
        Wayne Lin <wayne.lin@....com>, zhikzhai <zhikai.zhai@....com>,
        Daniel Wheeler <daniel.wheeler@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 28/54] drm/amd/display: skip audio setup when audio stream is enabled

From: zhikzhai <zhikai.zhai@....com>

[ 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@....com>
Acked-by: Wayne Lin <wayne.lin@....com>
Signed-off-by: zhikzhai <zhikai.zhai@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 3ac6c7b65a45..e33fe0207b9e 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
@@ -2047,7 +2047,8 @@ 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);
@@ -2075,7 +2076,8 @@ 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