drm/malidp: Annotate dma-fence critical section in commit path

Again needs to be put right after the call to
drm_atomic_helper_commit_hw_done(), since that's the last thing which
can hold up a subsequent atomic commit.

No surprises here.

Acked-by: Liviu Dudau <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Cc: "James (Qian) Wang" <[email protected]>
Cc: Liviu Dudau <[email protected]>
Cc: Mihail Atanassov <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: danvet

drivers/gpu/drm/arm/malidp_drv.c

@@ -234,6 +234,7 @@ static void malidp_atomic_commit_tail(struct drm_atomic_state *state)
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *old_crtc_state;
 	int i;
+	bool fence_cookie = dma_fence_begin_signalling();
 
 	pm_runtime_get_sync(drm->dev);
 
@@ -260,6 +261,8 @@ static void malidp_atomic_commit_tail(struct drm_atomic_state *state)
 
 	malidp_atomic_commit_hw_done(state);
 
+	dma_fence_end_signalling(fence_cookie);
+
 	pm_runtime_put(drm->dev);
 
 	drm_atomic_helper_cleanup_planes(drm, state);