linux-kernel - [PATCH 04/15] gpio: bd71828: use new line value setter callbacks

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Message-Id: <20250310-gpiochip-set-conversion-v1-4-03798bb833eb@linaro.org>
Date: Mon, 10 Mar 2025 13:40:18 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Ray Jui <rjui@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Scott Branden <sbranden@...adcom.com>, 
 Matti Vaittinen <mazziesaccount@...il.com>, 
 Marek Vasut <marek.vasut+renesas@...il.com>, Michael Buesch <m@...s.ch>, 
 Thomas Richard <thomas.richard@...tlin.com>, 
 Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>, 
 Benson Leung <bleung@...omium.org>, Guenter Roeck <groeck@...omium.org>, 
 Andy Shevchenko <andy@...nel.org>, 
 Support Opensource <support.opensource@...semi.com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-renesas-soc@...r.kernel.org, chrome-platform@...ts.linux.dev, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 04/15] gpio: bd71828: 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-bd71828.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-bd71828.c b/drivers/gpio/gpio-bd71828.c
index b2ccc320c7b5..4ba151e5cf25 100644
--- a/drivers/gpio/gpio-bd71828.c
+++ b/drivers/gpio/gpio-bd71828.c
@@ -16,10 +16,9 @@ struct bd71828_gpio {
 	struct gpio_chip gpio;
 };
 
-static void bd71828_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			     int value)
+static int bd71828_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			    int value)
 {
-	int ret;
 	struct bd71828_gpio *bdgpio = gpiochip_get_data(chip);
 	u8 val = (value) ? BD71828_GPIO_OUT_HI : BD71828_GPIO_OUT_LO;
 
@@ -28,12 +27,10 @@ static void bd71828_gpio_set(struct gpio_chip *chip, unsigned int offset,
 	 * we are dealing with - then we are done
 	 */
 	if (offset == HALL_GPIO_OFFSET)
-		return;
+		return 0;
 
-	ret = regmap_update_bits(bdgpio->regmap, GPIO_OUT_REG(offset),
-				 BD71828_GPIO_OUT_MASK, val);
-	if (ret)
-		dev_err(bdgpio->dev, "Could not set gpio to %d\n", value);
+	return regmap_update_bits(bdgpio->regmap, GPIO_OUT_REG(offset),
+				  BD71828_GPIO_OUT_MASK, val);
 }
 
 static int bd71828_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -112,7 +109,7 @@ static int bd71828_probe(struct platform_device *pdev)
 	bdgpio->gpio.set_config = bd71828_gpio_set_config;
 	bdgpio->gpio.can_sleep = true;
 	bdgpio->gpio.get = bd71828_gpio_get;
-	bdgpio->gpio.set = bd71828_gpio_set;
+	bdgpio->gpio.set_rv = bd71828_gpio_set;
 	bdgpio->gpio.base = -1;
 
 	/*

-- 
2.45.2