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Message-Id: <20220418121147.759894866@linuxfoundation.org>
Date: Mon, 18 Apr 2022 14:12:47 +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, Alvin Lee <Alvin.Lee2@....com>,
Aric Cyr <Aric.Cyr@....com>, Alex Hung <alex.hung@....com>,
Charlene Liu <Charlene.Liu@....com>,
Daniel Wheeler <daniel.wheeler@....com>,
Alex Deucher <alexander.deucher@....com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 045/105] drm/amd/display: fix audio format not updated after edid updated
From: Charlene Liu <Charlene.Liu@....com>
[ Upstream commit 5e8a71cf13bc9184fee915b2220be71b4c6cac74 ]
[why]
for the case edid change only changed audio format.
driver still need to update stream.
Reviewed-by: Alvin Lee <Alvin.Lee2@....com>
Reviewed-by: Aric Cyr <Aric.Cyr@....com>
Acked-by: Alex Hung <alex.hung@....com>
Signed-off-by: Charlene Liu <Charlene.Liu@....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/core/dc_resource.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 5c5ccbad9658..1e47afc4ccc1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1701,8 +1701,8 @@ bool dc_is_stream_unchanged(
if (old_stream->ignore_msa_timing_param != stream->ignore_msa_timing_param)
return false;
- // Only Have Audio left to check whether it is same or not. This is a corner case for Tiled sinks
- if (old_stream->audio_info.mode_count != stream->audio_info.mode_count)
+ /*compare audio info*/
+ if (memcmp(&old_stream->audio_info, &stream->audio_info, sizeof(stream->audio_info)) != 0)
return false;
return true;
--
2.35.1
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