[PATCH 1/3] drm/msm: dpu: Grab the modeset locks in frame_event

[Sean Paul]

From: Sean Paul <seanpaul at chromium.org>

This patch wraps dpu_core_perf_crtc_release_bw() with modeset locks
since it digs into the state objects.

Signed-off-by: Sean Paul <seanpaul at chromium.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index ed84cf44a222..6e636f373950 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -338,7 +338,9 @@ static void dpu_crtc_frame_event_work(struct kthread_work *work)
 			/* release bandwidth and other resources */
 			trace_dpu_crtc_frame_event_done(DRMID(crtc),
 							fevent->event);
+			drm_modeset_lock_all(crtc->dev);
 			dpu_core_perf_crtc_release_bw(crtc);
+			drm_modeset_unlock_all(crtc->dev);
 		} else {
 			trace_dpu_crtc_frame_event_more_pending(DRMID(crtc),
 								fevent->event);
-- 
Sean Paul, Software Engineer, Google / Chromium OS