diff mbox

[22/41] drm/bridge: analogix_dp: Extend hpd check time to 100ms

Message ID 20170310043305.17216-23-seanpaul@chromium.org (mailing list archive)
State New, archived
Headers show

Commit Message

Sean Paul March 10, 2017, 4:32 a.m. UTC 
From: Lin Huang <hl@rock-chips.com>

We only allocated 1ms to detect the hpd signal before, it too short to detect
a short pulse (hpd signal), extend it to 100ms.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: 征增 王 <wzz@rock-chips.com>
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Andrzej Hajda March 22, 2017, 8:32 a.m. UTC | #1 
On 10.03.2017 05:32, Sean Paul wrote:
> From: Lin Huang <hl@rock-chips.com>
>
> We only allocated 1ms to detect the hpd signal before, it too short to detect
> a short pulse (hpd signal), extend it to 100ms.
>
> Cc: Stéphane Marchesin <marcheu@chromium.org>
> Cc: 征增 王 <wzz@rock-chips.com>
> Signed-off-by: Lin Huang <hl@rock-chips.com>
> Signed-off-by: Sean Paul <seanpaul@chromium.org>

Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
--
Regards
Andrzej
diff mbox

Patch

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 3b2d53935ae9..043641aa0a6f 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -76,7 +76,7 @@  static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
 			return 0;
 
 		timeout_loop++;
-		usleep_range(10, 11);
+		usleep_range(1000, 1100);
 	}
 
 	/*