From: Mustapha Ghaddar <mghaddar@xxxxxxx> [WHY] It seems like after a series of plug/unplugs we end up in a situation where tiled display doesnt support Audio. [HOW] The issue seems to be related to when we check streams changed after an HPD, we should be checking the audio_struct as well to see if any of its values changed. Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx> Signed-off-by: Mustapha Ghaddar <mustapha.ghaddar@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 ++++ 1 file changed, 4 insertions(+) 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 51e22b965ed6..a2cf35a7ccaa 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1664,6 +1664,10 @@ 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) + return false; + return true; } -- 2.25.1
