Commit f1d0b196 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov
Browse files

drm/msm/dpu: make "vblank timeout" more useful 



We have several reports of vblank timeout messages. However after some
debugging it was found that there might be different causes to that.
To allow us to identify the DPU block that gets stuck, include the
actual CTL_FLUSH value into the timeout message.

Reviewed-by: default avatarAbhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579849/
Link: https://lore.kernel.org/r/20240226-fd-dpu-debug-timeout-v4-1-51eec83dde23@linaro.org
parent ee2fcc0f

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c

+1 −1
Original line number Diff line number Diff line
@@ -502,7 +502,7 @@ static int dpu_encoder_phys_vid_wait_for_commit_done( 
		(hw_ctl->ops.get_flush_register(hw_ctl) == 0),

		msecs_to_jiffies(50));

	if (ret <= 0) {

		DPU_ERROR("vblank timeout\n");

		DPU_ERROR("vblank timeout: %x\n", hw_ctl->ops.get_flush_register(hw_ctl));

		return -ETIMEDOUT;

	}