From: Charlene Liu Charlene.Liu@amd.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@amd.com Reviewed-by: Aric Cyr Aric.Cyr@amd.com Acked-by: Alex Hung alex.hung@amd.com Signed-off-by: Charlene Liu Charlene.Liu@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.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 18757c158523..bb8a762cf8da 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1664,8 +1664,8 @@ 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;