linux-kernel - [PATCH 09/12] gpio: logicvc: use new line value setter callbacks

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Message-Id: <20250423-gpiochip-set-rv-gpio-part2-v1-9-b22245cde81a@linaro.org>
Date: Wed, 23 Apr 2025 09:15:11 +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 09/12] gpio: logicvc: 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-logicvc.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-logicvc.c b/drivers/gpio/gpio-logicvc.c
index 05d62011f335..19cd2847467c 100644
--- a/drivers/gpio/gpio-logicvc.c
+++ b/drivers/gpio/gpio-logicvc.c
@@ -61,23 +61,22 @@ static int logicvc_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return !!(value & bit);
 }
 
-static void logicvc_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int logicvc_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			    int value)
 {
 	struct logicvc_gpio *logicvc = gpiochip_get_data(chip);
 	unsigned int reg, bit;
 
 	logicvc_gpio_offset(logicvc, offset, &reg, &bit);
 
-	regmap_update_bits(logicvc->regmap, reg, bit, value ? bit : 0);
+	return regmap_update_bits(logicvc->regmap, reg, bit, value ? bit : 0);
 }
 
 static int logicvc_gpio_direction_output(struct gpio_chip *chip,
 					 unsigned offset, int value)
 {
 	/* Pins are always configured as output, so just set the value. */
-	logicvc_gpio_set(chip, offset, value);
-
-	return 0;
+	return logicvc_gpio_set(chip, offset, value);
 }
 
 static struct regmap_config logicvc_gpio_regmap_config = {
@@ -135,7 +134,7 @@ static int logicvc_gpio_probe(struct platform_device *pdev)
 	logicvc->chip.ngpio = LOGICVC_CTRL_GPIO_BITS +
 			      LOGICVC_POWER_CTRL_GPIO_BITS;
 	logicvc->chip.get = logicvc_gpio_get;
-	logicvc->chip.set = logicvc_gpio_set;
+	logicvc->chip.set_rv = logicvc_gpio_set;
 	logicvc->chip.direction_output = logicvc_gpio_direction_output;
 
 	return devm_gpiochip_add_data(dev, &logicvc->chip, logicvc);

-- 
2.45.2