linux-kernel - [PATCH 06/19] gpio: wm831x: use new GPIO line value setter callbacks

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Message-Id: <20250709-gpiochip-set-rv-gpio-remaining-v1-6-b8950f69618d@linaro.org>
Date: Wed, 09 Jul 2025 08:41:43 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>, 
 Andy Shevchenko <andy@...nel.org>, 
 Shubhrajyoti Datta <shubhrajyoti.datta@....com>, 
 Srinivas Neeli <srinivas.neeli@....com>, 
 Michal Simek <michal.simek@....com>, Nandor Han <nandor.han@...com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 patches@...nsource.cirrus.com, linux-arm-kernel@...ts.infradead.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 06/19] gpio: wm831x: 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-wm831x.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-wm831x.c b/drivers/gpio/gpio-wm831x.c
index 61bb83a1e8ae4de29c57066944ce25beacdb454c..ab58aa7c0b9965ff13ea82efa22dbf6fa5d06c92 100644
--- a/drivers/gpio/gpio-wm831x.c
+++ b/drivers/gpio/gpio-wm831x.c
@@ -58,13 +58,14 @@ static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset)
 		return 0;
 }
 
-static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int wm831x_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
 {
 	struct wm831x_gpio *wm831x_gpio = gpiochip_get_data(chip);
 	struct wm831x *wm831x = wm831x_gpio->wm831x;
 
-	wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
-			value << offset);
+	return wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
+			       value << offset);
 }
 
 static int wm831x_gpio_direction_out(struct gpio_chip *chip,
@@ -85,9 +86,7 @@ static int wm831x_gpio_direction_out(struct gpio_chip *chip,
 		return ret;
 
 	/* Can only set GPIO state once it's in output mode */
-	wm831x_gpio_set(chip, offset, value);
-
-	return 0;
+	return wm831x_gpio_set(chip, offset, value);
 }
 
 static int wm831x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
@@ -254,7 +253,7 @@ static const struct gpio_chip template_chip = {
 	.direction_input	= wm831x_gpio_direction_in,
 	.get			= wm831x_gpio_get,
 	.direction_output	= wm831x_gpio_direction_out,
-	.set			= wm831x_gpio_set,
+	.set_rv			= wm831x_gpio_set,
 	.to_irq			= wm831x_gpio_to_irq,
 	.set_config		= wm831x_set_config,
 	.dbg_show		= wm831x_gpio_dbg_show,

-- 
2.48.1