diff options
| author | Chris Zhong <zyw@rock-chips.com> | 2017-03-08 10:27:57 +0800 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-03-13 15:59:35 -0400 |
| commit | 9346ab7d72c0e0526bd9cea70fa4ad768fe27c20 (patch) | |
| tree | e9f2842ee7c16ec0da0249ea9d0306159cc99331 | |
| parent | 05c00c2f196757cd59d5738ec4d02e365cf9e7a0 (diff) | |
| download | linux-9346ab7d72c0e0526bd9cea70fa4ad768fe27c20.tar.gz | |
drm/rockchip: cdn-dp: add more log for video config
In order to analyze some video config failed, add some useful
printouts.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1488940077-22297-4-git-send-email-zyw@rock-chips.com
| -rw-r--r-- | drivers/gpu/drm/rockchip/cdn-dp-reg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c index 963d8abec463eb..b14d211f6c2173 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) || |