commit 3ebf766c35464ebdeefb6068246267147503dc04
author Ivan Lipski <ivan.lipski@amd.com> Wed Aug 20 15:46:52 2025 -0400
committer Alex Deucher <alexander.deucher@amd.com> Fri Aug 29 11:15:08 2025 -0400
tree 9f3fe64b49ab0a22e44e244a784dad2d928ab199
parent 71403f58b4bb6c13b71c05505593a355f697fd94

drm/amd/display: Clear the CUR_ENABLE register on DCN314 w/out DPP PG

[Why&How]
ON DCN314, clearing DPP SW structure without power gating it can cause a
double cursor in full screen with non-native scaling.

A W/A that clears CURSOR0_CONTROL cursor_enable flag if
dcn10_plane_atomic_power_down is called and DPP power gating is disabled.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4168
Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 645f74f1dc119dad5a2c7bbc05cc315e76883011)
Cc: stable@vger.kernel.org