linux-kernel - [PATCH 1/3] pinctrl: bcm: nsp-gpio: use new GPIO line value setter callbacks

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Message-Id: <20250425-gpiochip-set-rv-pinctrl-bcm-v1-1-6b8883d79b66@linaro.org>
Date: Fri, 25 Apr 2025 11:08:29 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...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>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 1/3] pinctrl: bcm: nsp-gpio: 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/pinctrl/bcm/pinctrl-nsp-gpio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
index a96be8f244e0..b08f8480ddc6 100644
--- a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c
@@ -310,7 +310,7 @@ static int nsp_gpio_get_direction(struct gpio_chip *gc, unsigned gpio)
 	return !val;
 }
 
-static void nsp_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
+static int nsp_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
 	struct nsp_gpio *chip = gpiochip_get_data(gc);
 	unsigned long flags;
@@ -320,6 +320,8 @@ static void nsp_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
 	raw_spin_unlock_irqrestore(&chip->lock, flags);
 
 	dev_dbg(chip->dev, "gpio:%u set, value:%d\n", gpio, val);
+
+	return 0;
 }
 
 static int nsp_gpio_get(struct gpio_chip *gc, unsigned gpio)
@@ -654,7 +656,7 @@ static int nsp_gpio_probe(struct platform_device *pdev)
 	gc->direction_input = nsp_gpio_direction_input;
 	gc->direction_output = nsp_gpio_direction_output;
 	gc->get_direction = nsp_gpio_get_direction;
-	gc->set = nsp_gpio_set;
+	gc->set_rv = nsp_gpio_set;
 	gc->get = nsp_gpio_get;
 
 	/* optional GPIO interrupt support */

-- 
2.45.2