linux-kernel - [PATCH 11/12] gpio: loongson: use new line value setter callbacks

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Message-Id: <20250423-gpiochip-set-rv-gpio-part2-v1-11-b22245cde81a@linaro.org>
Date: Wed, 23 Apr 2025 09:15:13 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Lixu Zhang <lixu.zhang@...el.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Yinbo Zhu <zhuyinbo@...ngson.cn>
Cc: linux-gpio@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 11/12] gpio: loongson: use new 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/gpio/gpio-loongson.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-loongson.c b/drivers/gpio/gpio-loongson.c
index a42145873cc9..8f3668169ebf 100644
--- a/drivers/gpio/gpio-loongson.c
+++ b/drivers/gpio/gpio-loongson.c
@@ -48,8 +48,8 @@ static int loongson_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
 	return !!(val & BIT(gpio + LOONGSON_GPIO_IN_OFFSET));
 }
 
-static void loongson_gpio_set_value(struct gpio_chip *chip,
-		unsigned gpio, int value)
+static int loongson_gpio_set_value(struct gpio_chip *chip, unsigned int gpio,
+				   int value)
 {
 	u32 val;
 
@@ -61,6 +61,8 @@ static void loongson_gpio_set_value(struct gpio_chip *chip,
 		val &= ~BIT(gpio);
 	LOONGSON_GPIODATA = val;
 	spin_unlock(&gpio_lock);
+
+	return 0;
 }
 
 static int loongson_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
@@ -104,7 +106,7 @@ static int loongson_gpio_probe(struct platform_device *pdev)
 	gc->base = 0;
 	gc->ngpio = LOONGSON_N_GPIO;
 	gc->get = loongson_gpio_get_value;
-	gc->set = loongson_gpio_set_value;
+	gc->set_rv = loongson_gpio_set_value;
 	gc->direction_input = loongson_gpio_direction_input;
 	gc->direction_output = loongson_gpio_direction_output;
 

-- 
2.45.2