linux-kernel - [PATCH 05/12] pinctrl: stm32: use new GPIO line value setter callbacks

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Message-Id: <20250424-gpiochip-set-rv-pinctrl-part2-v1-5-504f91120b99@linaro.org>
Date: Thu, 24 Apr 2025 10:35:28 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Basavaraj Natikar <Basavaraj.Natikar@....com>, 
 Shyam Sundar S K <Shyam-sundar.S-k@....com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Chen-Yu Tsai <wens@...e.org>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Andreas Färber <afaerber@...e.de>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Paul Cercueil <paul@...pouillou.net>, 
 Steen Hegelund <Steen.Hegelund@...rochip.com>, 
 Daniel Machon <daniel.machon@...rochip.com>, UNGLinuxDriver@...rochip.com, 
 Ludovic Desroches <ludovic.desroches@...rochip.com>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, Andrew Lunn <andrew@...n.ch>, 
 Gregory Clement <gregory.clement@...tlin.com>, 
 Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>, 
 Krzysztof Kozlowski <krzk@...nel.org>, 
 Sylwester Nawrocki <s.nawrocki@...sung.com>, 
 Alim Akhtar <alim.akhtar@...sung.com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, linux-actions@...ts.infradead.org, 
 linux-mips@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 05/12] pinctrl: stm32: 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/stm32/pinctrl-stm32.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index cc0b4d1d7cff..ba49d48c3a1d 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -228,11 +228,14 @@ static int stm32_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return !!(readl_relaxed(bank->base + STM32_GPIO_IDR) & BIT(offset));
 }
 
-static void stm32_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int stm32_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			  int value)
 {
 	struct stm32_gpio_bank *bank = gpiochip_get_data(chip);
 
 	__stm32_gpio_set(bank, offset, value);
+
+	return 0;
 }
 
 static int stm32_gpio_direction_output(struct gpio_chip *chip,
@@ -308,7 +311,7 @@ static const struct gpio_chip stm32_gpio_template = {
 	.request		= stm32_gpio_request,
 	.free			= pinctrl_gpio_free,
 	.get			= stm32_gpio_get,
-	.set			= stm32_gpio_set,
+	.set_rv			= stm32_gpio_set,
 	.direction_input	= pinctrl_gpio_direction_input,
 	.direction_output	= stm32_gpio_direction_output,
 	.to_irq			= stm32_gpio_to_irq,

-- 
2.45.2