drm/armada: move the update of dplane->ctrl0 out of spinlock

It is not necessary to write dplane->ctrl0 under the CRTC spinlock, as
this is only accessed under process context where the DRM locks will
protect us instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index 9686d79335a0..e7e020d4372a 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -275,9 +275,10 @@ static int armada_ovl_plane_disable(struct drm_plane *plane)
 
         spin_lock_irq(&dcrtc->irq_lock);
         armada_drm_vbl_event_remove(dcrtc, &dplane->vbl.update);
-        dplane->ctrl0 = 0;
         spin_unlock_irq(&dcrtc->irq_lock);
 
+        dplane->ctrl0 = 0;
+
         armada_drm_crtc_plane_disable(dcrtc, plane);
 
         fb = xchg(&dplane->old_fb, NULL);