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[v4,23/38] drm/bridge: analogix_dp: Fix timeout of video streamclk config

Message ID 20180305222324.5872-24-enric.balletbo@collabora.com (mailing list archive)
State New, archived
Headers show

Commit Message

Enric Balletbo i Serra March 5, 2018, 10:23 p.m. UTC 
From: zain wang <wzz@rock-chips.com>

The STRM_VALID bit in register ANALOGIX_DP_SYS_CTL_3 may be unstable,
so we may hit the error log "Timeout of video streamclk ok" since
checked this unstable bit.
In fact, we can go continue and the streamclk is ok if we wait enough time,
it does no effect on display.
Let's change this error to warn.

Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index c93a0d125b87..2493a580e655 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -921,8 +921,9 @@  static int analogix_dp_config_video(struct analogix_dp_device *dp)
 			done_count = 0;
 		}
 		if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) {
-			dev_err(dp->dev, "Timeout of video streamclk ok\n");
-			return -ETIMEDOUT;
+			dev_warn(dp->dev,
+				 "Ignoring timeout of video streamclk ok\n");
+			break;
 		}
 
 		usleep_range(1000, 1001);