BACKPORT: FROMLIST: drm/mediatek: ensure bridge disable happends before suspend
requested to merge mediatek/aiot/team-mtk-aiot-sw-ss2/linux:pablo/AIOT-1201/dp-suspend-resume into mtk-v5.15-dev
Make sure bridge_disable will be called before suspend by calling drm_mode_config_helper_suspend() in .prepare callback.
(am from https://lore.kernel.org/linux-arm-kernel/20220629190545.478113-1-hsinyi@chromium.org/t/)
Closes AIOT-1201 Closes AIOT-1242 Closes AIOT-1223
Signed-off-by: Hsin-Yi Wang hsinyi@chromium.org
Edited by Pablo Sun