drm/amd/display: fix audio format not updated after edid updated

[ 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>

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 95a5310e9e6617c9999cedd5f902cb9a48aa9e68..de246e183d6bac0d1afd14e03169c9095ada4cb3 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1546,8 +1546,8 @@ 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;