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

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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: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry 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
This commit is contained in:
Dmitry Baryshkov 2024-02-26 04:27:59 +02:00
parent ee2fcc0f51
commit f1d0b196ff
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
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@ -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;
}