Messages in this thread Patch in this message | | | From | Chris Zhong <> | Subject | [PATCH 3/3] drm/rockchip: cdn-dp: add more log for video config | Date | Wed, 8 Mar 2017 10:27:57 +0800 |
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In order to analyze some video config failed, add some useful printouts.
Signed-off-by: Chris Zhong <zyw@rock-chips.com> ---
drivers/gpu/drm/rockchip/cdn-dp-reg.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c index 963d8ab..b14d211 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-reg.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c @@ -671,6 +671,10 @@ int cdn_dp_config_video(struct cdn_dp_device *dp) rem = do_div(symbol, 1000); if (tu_size_reg > 64) { ret = -EINVAL; + DRM_DEV_ERROR(dp->dev, + "tu error, clk:%d, lanes:%d, rate:%d\n", + mode->clock, dp->link.num_lanes, + link_rate); goto err_config_video; } } while ((symbol <= 1) || (tu_size_reg - symbol < 4) || -- 2.6.3
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