[PATCH 5.4 089/270] drm/msm: ratelimit crtc event overflow error

From: Greg Kroah-Hartman
Date: Mon Aug 17 2020 - 14:24:05 EST


From: Rob Clark <robdclark@xxxxxxxxxxxx>

[ Upstream commit 5e16372b5940b1fecc3cc887fc02a50ba148d373 ]

This can happen a lot when things go pear shaped. Lets not flood dmesg
when this happens.

Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Reviewed-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index ce59adff06aa1..36c85c05b7cf7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -381,7 +381,7 @@ static void dpu_crtc_frame_event_cb(void *data, u32 event)
spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);

if (!fevent) {
- DRM_ERROR("crtc%d event %d overflow\n", crtc->base.id, event);
+ DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event);
return;
}

--
2.25.1