linux-kernel - [PATCH 02/12] gpio: lp87565: use new GPIO line value setter callbacks

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Message-Id: <20250506-gpiochip-set-rv-gpio-part3-v1-2-0fbdea5a9667@linaro.org>
Date: Tue, 06 May 2025 11:01:45 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Vladimir Zapolskiy <vz@...ia.com>, 
 Piotr Wojtaszczyk <piotr.wojtaszczyk@...esys.com>, 
 Charles Keepax <ckeepax@...nsource.cirrus.com>, 
 Richard Fitzgerald <rf@...nsource.cirrus.com>, 
 Andy Shevchenko <andy@...nel.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-sound@...r.kernel.org, 
 patches@...nsource.cirrus.com, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 02/12] gpio: lp87565: 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-lp87565.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-lp87565.c b/drivers/gpio/gpio-lp87565.c
index d3ce027de081f..8ea687d5d028a 100644
--- a/drivers/gpio/gpio-lp87565.c
+++ b/drivers/gpio/gpio-lp87565.c
@@ -30,13 +30,13 @@ static int lp87565_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return !!(val & BIT(offset));
 }
 
-static void lp87565_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			     int value)
+static int lp87565_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			    int value)
 {
 	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
 
-	regmap_update_bits(gpio->map, LP87565_REG_GPIO_OUT,
-			   BIT(offset), value ? BIT(offset) : 0);
+	return regmap_update_bits(gpio->map, LP87565_REG_GPIO_OUT,
+				  BIT(offset), value ? BIT(offset) : 0);
 }
 
 static int lp87565_gpio_get_direction(struct gpio_chip *chip,
@@ -69,8 +69,11 @@ static int lp87565_gpio_direction_output(struct gpio_chip *chip,
 					 unsigned int offset, int value)
 {
 	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
+	int ret;
 
-	lp87565_gpio_set(chip, offset, value);
+	ret = lp87565_gpio_set(chip, offset, value);
+	if (ret)
+		return ret;
 
 	return regmap_update_bits(gpio->map,
 				  LP87565_REG_GPIO_CONFIG,
@@ -136,7 +139,7 @@ static const struct gpio_chip template_chip = {
 	.direction_input	= lp87565_gpio_direction_input,
 	.direction_output	= lp87565_gpio_direction_output,
 	.get			= lp87565_gpio_get,
-	.set			= lp87565_gpio_set,
+	.set_rv			= lp87565_gpio_set,
 	.set_config		= lp87565_gpio_set_config,
 	.base			= -1,
 	.ngpio			= 3,

-- 
2.45.2