This is a note to let you know that I've just added the patch titled
drm/amd/display: Check if link state is valid
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-check-if-link-state-is-valid.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1c10da1197f03165f82ea759fa6c2bcee6523cd9
Author: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Date: Tue Oct 18 08:28:15 2022 -0400
drm/amd/display: Check if link state is valid
[ Upstream commit 03ce7b387e8b0f4a1dc97a878545bdf7c7f23251 ]
The link state is set to false if there is no link and local sink. Even
though the stream state may not change, it is desirable to commit the
new stream when HPD goes low to high.
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Co-developed-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Stable-dep-of: 59de751e3845 ("drm/amd/display: add ODM case when looking for first split pipe")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index cca0143444164..beb2d7f103c58 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1517,6 +1517,8 @@ static bool context_changed(
for (i = 0; i < dc->current_state->stream_count; i++) {
if (dc->current_state->streams[i] != context->streams[i])
return true;
+ if (!context->streams[i]->link->link_state_valid)
+ return true;
}
return false;
