linux-kernel - Re: [PATCH v1 2/6] Input: gpio_keys_polled

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Message-ID: <Zymw7fduuSyCCdeS@google.com>
Date: Mon, 4 Nov 2024 21:45:17 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	Tony Lindgren <tony@...mide.com>, Lee Jones <lee@...nel.org>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, linux-leds@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>, Pavel Machek <pavel@....cz>,
	Dominik Brodowski <linux@...inikbrodowski.net>,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v1 2/6] Input: gpio_keys_polled - avoid using
 GPIOF_ACTIVE_LOW

On Mon, Nov 04, 2024 at 11:34:20AM +0200, Andy Shevchenko wrote:
> Avoid using GPIOF_ACTIVE_LOW as it's deprecated and subject to remove.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

> ---
>  drivers/input/keyboard/gpio_keys_polled.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
> index 41ca0d3c9098..e6707d72210e 100644
> --- a/drivers/input/keyboard/gpio_keys_polled.c
> +++ b/drivers/input/keyboard/gpio_keys_polled.c
> @@ -306,13 +306,8 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
>  			 * Legacy GPIO number so request the GPIO here and
>  			 * convert it to descriptor.
>  			 */
> -			unsigned flags = GPIOF_IN;
> -
> -			if (button->active_low)
> -				flags |= GPIOF_ACTIVE_LOW;
> -
> -			error = devm_gpio_request_one(dev, button->gpio,
> -					flags, button->desc ? : DRV_NAME);
> +			error = devm_gpio_request_one(dev, button->gpio, GPIOF_IN,
> +						      button->desc ? : DRV_NAME);
>  			if (error)
>  				return dev_err_probe(dev, error,
>  						     "unable to claim gpio %u\n",
> @@ -325,6 +320,9 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
>  					button->gpio);
>  				return -EINVAL;
>  			}
> +
> +			if (button->active_low ^ gpiod_is_active_low(bdata->gpiod))
> +				gpiod_toggle_active_low(bdata->gpiod);
>  		}
>  
>  		bdata->last_state = -1;
> -- 
> 2.43.0.rc1.1336.g36b5255a03ac
> 

-- 
Dmitry