linux-kernel - [PATCH 01/12] gpio: lp873x: use new GPIO line value setter callbacks

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Message-Id: <20250506-gpiochip-set-rv-gpio-part3-v1-1-0fbdea5a9667@linaro.org>
Date: Tue, 06 May 2025 11:01:44 +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 01/12] gpio: lp873x: 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-lp873x.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-lp873x.c b/drivers/gpio/gpio-lp873x.c
index 5c79ba1f229c4..1908ed302e923 100644
--- a/drivers/gpio/gpio-lp873x.c
+++ b/drivers/gpio/gpio-lp873x.c
@@ -58,14 +58,14 @@ static int lp873x_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return val & BIT(offset * BITS_PER_GPO);
 }
 
-static void lp873x_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			    int value)
+static int lp873x_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
 {
 	struct lp873x_gpio *gpio = gpiochip_get_data(chip);
 
-	regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL,
-			   BIT(offset * BITS_PER_GPO),
-			   value ? BIT(offset * BITS_PER_GPO) : 0);
+	return regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL,
+				  BIT(offset * BITS_PER_GPO),
+				  value ? BIT(offset * BITS_PER_GPO) : 0);
 }
 
 static int lp873x_gpio_request(struct gpio_chip *gc, unsigned int offset)
@@ -124,7 +124,7 @@ static const struct gpio_chip template_chip = {
 	.direction_input	= lp873x_gpio_direction_input,
 	.direction_output	= lp873x_gpio_direction_output,
 	.get			= lp873x_gpio_get,
-	.set			= lp873x_gpio_set,
+	.set_rv			= lp873x_gpio_set,
 	.set_config		= lp873x_gpio_set_config,
 	.base			= -1,
 	.ngpio			= 2,

-- 
2.45.2