linux-kernel - [PATCH 07/12] gpio: rc5t583: use new GPIO line value setter callbacks

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Message-Id: <20250617-gpiochip-set-rv-gpio-v1-7-903703881fa2@linaro.org>
Date: Tue, 17 Jun 2025 14:24:29 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
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>, Heiko Stuebner <heiko@...ech.de>
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: [PATCH 07/12] gpio: rc5t583: 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/gpio/gpio-rc5t583.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-rc5t583.c b/drivers/gpio/gpio-rc5t583.c
index c34dcadaee36d5fb775d4aaa8c8f8b275f4e2382..cf3e91d235df2eefc7d0fc93a58824edd55e9aba 100644
--- a/drivers/gpio/gpio-rc5t583.c
+++ b/drivers/gpio/gpio-rc5t583.c
@@ -35,14 +35,20 @@ static int rc5t583_gpio_get(struct gpio_chip *gc, unsigned int offset)
 	return !!(val & BIT(offset));
 }
 
-static void rc5t583_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
+static int rc5t583_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
 {
 	struct rc5t583_gpio *rc5t583_gpio = gpiochip_get_data(gc);
 	struct device *parent = rc5t583_gpio->rc5t583->dev;
+	int ret;
+
 	if (val)
-		rc5t583_set_bits(parent, RC5T583_GPIO_IOOUT, BIT(offset));
+		ret = rc5t583_set_bits(parent, RC5T583_GPIO_IOOUT,
+				       BIT(offset));
 	else
-		rc5t583_clear_bits(parent, RC5T583_GPIO_IOOUT, BIT(offset));
+		ret = rc5t583_clear_bits(parent, RC5T583_GPIO_IOOUT,
+					 BIT(offset));
+
+	return ret;
 }
 
 static int rc5t583_gpio_dir_input(struct gpio_chip *gc, unsigned int offset)
@@ -66,7 +72,10 @@ static int rc5t583_gpio_dir_output(struct gpio_chip *gc, unsigned offset,
 	struct device *parent = rc5t583_gpio->rc5t583->dev;
 	int ret;
 
-	rc5t583_gpio_set(gc, offset, value);
+	ret = rc5t583_gpio_set(gc, offset, value);
+	if (ret)
+		return ret;
+
 	ret = rc5t583_set_bits(parent, RC5T583_GPIO_IOSEL, BIT(offset));
 	if (ret < 0)
 		return ret;
@@ -109,7 +118,7 @@ static int rc5t583_gpio_probe(struct platform_device *pdev)
 	rc5t583_gpio->gpio_chip.free = rc5t583_gpio_free,
 	rc5t583_gpio->gpio_chip.direction_input = rc5t583_gpio_dir_input,
 	rc5t583_gpio->gpio_chip.direction_output = rc5t583_gpio_dir_output,
-	rc5t583_gpio->gpio_chip.set = rc5t583_gpio_set,
+	rc5t583_gpio->gpio_chip.set_rv = rc5t583_gpio_set,
 	rc5t583_gpio->gpio_chip.get = rc5t583_gpio_get,
 	rc5t583_gpio->gpio_chip.to_irq = rc5t583_gpio_to_irq,
 	rc5t583_gpio->gpio_chip.ngpio = RC5T583_MAX_GPIO,

-- 
2.48.1