[PATCH v5 14/36] drm/bridge: analogix_dp: Extend hpd check time to 100ms

[Archit Taneja]

On Saturday 10 March 2018 03:53 AM, Enric Balletbo i Serra wrote:
> From: Lin Huang <hl at rock-chips.com>
> 
> There was a 1ms delay to detect the hpd signal, which is too short to
> detect a short pulse. This patch extends this delay to 100ms.
> 

Reviewed-by: Archit Taneja <architt at codeaurora.org>

Thanks,
Archit

> Cc: Stéphane Marchesin <marcheu at chromium.org>
> Cc: 征增 王 <wzz at rock-chips.com>
> Signed-off-by: Lin Huang <hl at rock-chips.com>
> Signed-off-by: Sean Paul <seanpaul at chromium.org>
> Signed-off-by: Thierry Escande <thierry.escande at collabora.com>
> Reviewed-by: Andrzej Hajda <a.hajda at samsung.com>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo at collabora.com>
> Tested-by: Marek Szyprowski <m.szyprowski at samsung.com>
> ---
> 
>   drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> index 3a222e7e46ee..6cbde8473f58 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);
>   	}
>   
>   	/*
>