linux-kernel - Re: [PATCH v2 10/12] gpio: rockchip: use new GPIO line value setter callbacks

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Message-ID: <15862883.tv2OnDr8pf@phil>
Date: Thu, 19 Jun 2025 10:54:44 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Linus Walleij <linus.walleij@...aro.org>,
 Bartosz Golaszewski <brgl@...ev.pl>, Andy Shevchenko <andy@...nel.org>,
 Orson Zhai <orsonzhai@...il.com>,
 Baolin Wang <baolin.wang@...ux.alibaba.com>,
 Chunyan Zhang <zhang.lyra@...il.com>,
 Robert Jarzmik <robert.jarzmik@...e.fr>, Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject:
 Re: [PATCH v2 10/12] gpio: rockchip: use new GPIO line value setter callbacks

Am Donnerstag, 19. Juni 2025, 10:33:23 Mitteleuropäische Sommerzeit schrieb Bartosz Golaszewski:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> struct gpio_chip now has callbacks for setting line values that return
> an integer, allowing to indicate failures. Convert the driver to using
> them.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Reviewed-by: Heiko Stuebner <heiko@...ech.de>



> ---
>  drivers/gpio/gpio-rockchip.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
> index 64700a003f9a17947dd38baea23a066e8c057caf..ecd60ff9e1dd1a090bfad204c8b86c4d7fb68ce7 100644
> --- a/drivers/gpio/gpio-rockchip.c
> +++ b/drivers/gpio/gpio-rockchip.c
> @@ -177,8 +177,8 @@ static int rockchip_gpio_set_direction(struct gpio_chip *chip,
>  	return 0;
>  }
>  
> -static void rockchip_gpio_set(struct gpio_chip *gc, unsigned int offset,
> -			      int value)
> +static int rockchip_gpio_set(struct gpio_chip *gc, unsigned int offset,
> +			     int value)
>  {
>  	struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
>  	unsigned long flags;
> @@ -186,6 +186,8 @@ static void rockchip_gpio_set(struct gpio_chip *gc, unsigned int offset,
>  	raw_spin_lock_irqsave(&bank->slock, flags);
>  	rockchip_gpio_writel_bit(bank, offset, value, bank->gpio_regs->port_dr);
>  	raw_spin_unlock_irqrestore(&bank->slock, flags);
> +
> +	return 0;
>  }
>  
>  static int rockchip_gpio_get(struct gpio_chip *gc, unsigned int offset)
> @@ -325,7 +327,7 @@ static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
>  static const struct gpio_chip rockchip_gpiolib_chip = {
>  	.request = gpiochip_generic_request,
>  	.free = gpiochip_generic_free,
> -	.set = rockchip_gpio_set,
> +	.set_rv = rockchip_gpio_set,
>  	.get = rockchip_gpio_get,
>  	.get_direction	= rockchip_gpio_get_direction,
>  	.direction_input = rockchip_gpio_direction_input,
> 
>