Re: [PATCH 7/7] Input: cy8ctmg110_ts - switch to using gpiod API

From: Linus Walleij
Date: Fri Jun 04 2021 - 03:39:18 EST


On Thu, Jun 3, 2021 at 6:37 AM Dmitry Torokhov
<dmitry.torokhov@xxxxxxxxx> wrote:

> Instead of legacy gpio API let's use newer gpiod API. This also allows us
> to get rid of platform data.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

> static void cy8ctmg110_power(struct cy8ctmg110 *ts, bool poweron)
> {
> - if (ts->reset_pin)
> - gpio_direction_output(ts->reset_pin, 1 - poweron);
> + if (ts->reset_gpio)
> + gpiod_set_value_cansleep(ts->reset_gpio, !poweron);

I would perhaps drop in a comment that this de-asserts the RESET
line when we power on and asserts it when we power off.

> + ts->reset_gpio = devm_gpiod_get_optional(&client->dev, NULL,
> + GPIOD_OUT_HIGH);

And here that this will assert RESET.

But that is just nitpicks, the code is fine.

Yours,
Linus Walleij