Re: [PATCH] drm/msm: ratelimit crtc event overflow error

[abhinavk]

On 2020-07-01 13:36, Rob Clark wrote:

From: Rob Clark <robdcl...@chromium.org>

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

Signed-off-by: Rob Clark <robdcl...@chromium.org>

Reviewed-by: Abhinav Kumar <abhin...@codeaurora.org>

---
 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 e15b42a780e0..969d95aa873c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c

@@ -389,7 +389,7 @@ 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;
        }