linux-kernel - [PATCH 02/16] pinctrl: st: use new GPIO line value setter callbacks

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Message-Id: <20250612-gpiochip-set-rv-pinctrl-remaining-v1-2-556b0a530cd4@linaro.org>
Date: Thu, 12 Jun 2025 15:15:11 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Dvorkin Dmitry <dvorkin@...bo.com>, Wells Lu <wellslutw@...il.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Patrice Chotard <patrice.chotard@...s.st.com>, 
 Support Opensource <support.opensource@...semi.com>, 
 Baruch Siach <baruch@...s.co.il>, Sven Peter <sven@...nel.org>, 
 Janne Grunau <j@...nau.net>, Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Neal Gompa <neal@...pa.dev>, Viresh Kumar <vireshk@...nel.org>, 
 Lakshmi Sowjanya D <lakshmi.sowjanya.d@...el.com>, 
 Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, asahi@...ts.linux.dev, soc@...ts.linux.dev, 
 linux-sunxi@...ts.linux.dev, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 02/16] pinctrl: st: use new GPIO line value setter
 callbacks

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>
---
 drivers/pinctrl/pinctrl-st.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index fe2d52e434db8cdc03d61ef3f4df95cbcc9c513e..fb5d72a6826ed730f5a10a817e9a46f9fe319b5b 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -711,10 +711,12 @@ static int st_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return !!(readl(bank->base + REG_PIO_PIN) & BIT(offset));
 }
 
-static void st_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int st_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
 	struct st_gpio_bank *bank = gpiochip_get_data(chip);
 	__st_gpio_set(bank, offset, value);
+
+	return 0;
 }
 
 static int st_gpio_direction_output(struct gpio_chip *chip,
@@ -1470,7 +1472,7 @@ static const struct gpio_chip st_gpio_template = {
 	.request		= gpiochip_generic_request,
 	.free			= gpiochip_generic_free,
 	.get			= st_gpio_get,
-	.set			= st_gpio_set,
+	.set_rv			= st_gpio_set,
 	.direction_input	= pinctrl_gpio_direction_input,
 	.direction_output	= st_gpio_direction_output,
 	.get_direction		= st_gpio_get_direction,

-- 
2.48.1