From: Mustapha Ghaddar <mghad...@amd.com>
[ Upstream commit 5ceaebcda9061c04f439c93961f0819878365c0f ]
[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....@amd.com>
Acked-by: Bhawanpreet Lakha <bhawanpreet.la...@amd.com>
Signed-off-by: Mustapha Ghaddar <mustapha.ghad...@amd.com>
Tested-by: Daniel Wheeler <daniel.whee...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
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 f25ac17f47fa9..95a5310e9e661 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1546,6 +1546,10 @@ 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;
}
--
2.33.0
