From c4d3b1a21ec2d3a9065b46c13021344ffa7ecead Mon Sep 17 00:00:00 2001 From: zain wang Date: Mon, 23 Apr 2018 12:49:51 +0200 Subject: drm/bridge: analogix_dp: Fix timeout of video streamclk config 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 Signed-off-by: zain wang Signed-off-by: Sean Paul Signed-off-by: Thierry Escande Reviewed-by: Andrzej Hajda Signed-off-by: Enric Balletbo i Serra Tested-by: Marek Szyprowski Reviewed-by: Archit Taneja Signed-off-by: Andrzej Hajda Link: https://patchwork.freedesktop.org/patch/msgid/20180423105003.9004-16-enric.balletbo@collabora.com --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 5540e2dfc2ec..a72e454a7292 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); -- cgit v1.2.3