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@rock-chips.com --- 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 7e67f19..447c94d 100644 --- a/drivers/gpu/drm/bridge/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix_dp_core.c @@ -73,7 +73,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) return 0;
timeout_loop++; - usleep_range(10, 11); + usleep_range(100, 110); }
/*