Some edp screen with no hpd signal would need some delay time to ensure that screen would be ready for work, so we can expand the delay time in hpd detect function, it works prefectly on my rk3288 sdk board. Signed-off-by: Yakir Yang <ykk at rock-chips.com> --- Changes in v2: None drivers/gpu/drm/bridge/analogix_dp_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c index efd810c..3ba10fa2 100644 --- a/drivers/gpu/drm/bridge/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix_dp_core.c @@ -71,7 +71,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) return 0; timeout_loop++; - usleep_range(10, 11); + usleep_range(100, 110); } /* -- 1.9.1
