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

Archit Taneja
2018-03-14T06:15:06Z

On Saturday 10 March 2018 03:53 AM, Enric Balletbo i Serra wrote:
> From: Lin Huang <hl@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@codeaurora.org>

Thanks,
Archit

> 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>
> Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Tested-by: Marek Szyprowski <m.szyprowski@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);
> }
>
> /*
>
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