Re: [PATCH 8/8] extcon: gpio: Always check state on resume

From: Chanwoo Choi
Date: Mon Sep 25 2017 - 22:25:52 EST


Hi Linus,

On 2017ë 09ì 24ì 23:56, Linus Walleij wrote:
> It makes most sense to always check the state of the GPIO external
> connector at system resume so just do this by default. Add a TODO
> if people turn out to desire to parameterize this.
>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> drivers/extcon/extcon-gpio.c | 9 +++++++++
> 1 file changed, 9 insertions(+)

Looks good to me.
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>

>
> diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
> index b7353f5018b5..4f0ad5ad2722 100644
> --- a/drivers/extcon/extcon-gpio.c
> +++ b/drivers/extcon/extcon-gpio.c
> @@ -83,6 +83,15 @@ static int gpio_extcon_probe(struct platform_device *pdev)
> if (!data)
> return -ENOMEM;
>
> + /*
> + * Always checking connector state on resume makes most sense so do this
> + * by default.
> + *
> + * TODO: if parameterization is needed, augment this to use proper device
> + * properties or set it up from PM core.
> + */
> + data->check_on_resume = true;
> +
> data->gpiod = devm_gpiod_get(dev, "extcon", GPIOD_IN);
> if (IS_ERR(data->gpiod))
> return PTR_ERR(data->gpiod);
>

--
Best Regards,
Chanwoo Choi
Samsung Electronics