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commit2d418e4fd9upstream. [Why & How] Not letting DCN301 to clear after surface/stream update results in artifacts when switching between active overlay planes. The issue is known and has been solved initially. See below: (https://gitlab.freedesktop.org/drm/amd/-/issues/3441) Fixes:f354556e29("drm/amd/display: limit clear_update_flags t dcn32 and above") Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Ivan Lipski <ivan.lipski@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>