linux-kernel - [PATCH 1/3] platform/x86: barco-p50: use new GPIO line value setter callbacks

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Message-Id: <20250408-gpiochip-set-rv-platform-x86-v1-1-6f67e76a722c@linaro.org>
Date: Tue, 08 Apr 2025 09:19:53 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Santosh Kumar Yadav <santoshkumar.yadav@...co.com>, 
 Peter Korsgaard <peter.korsgaard@...co.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 1/3] platform/x86: barco-p50: 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/platform/x86/barco-p50-gpio.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/barco-p50-gpio.c b/drivers/platform/x86/barco-p50-gpio.c
index 143d14548565..bb3393bbfb89 100644
--- a/drivers/platform/x86/barco-p50-gpio.c
+++ b/drivers/platform/x86/barco-p50-gpio.c
@@ -268,15 +268,19 @@ static int p50_gpio_get(struct gpio_chip *gc, unsigned int offset)
 	return ret;
 }
 
-static void p50_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+static int p50_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
 {
 	struct p50_gpio *p50 = gpiochip_get_data(gc);
+	int ret;
 
 	mutex_lock(&p50->lock);
 
-	p50_send_mbox_cmd(p50, P50_MBOX_CMD_WRITE_GPIO, gpio_params[offset], value);
+	ret = p50_send_mbox_cmd(p50, P50_MBOX_CMD_WRITE_GPIO,
+				gpio_params[offset], value);
 
 	mutex_unlock(&p50->lock);
+
+	return ret;
 }
 
 static int p50_gpio_probe(struct platform_device *pdev)
@@ -312,7 +316,7 @@ static int p50_gpio_probe(struct platform_device *pdev)
 	p50->gc.base = -1;
 	p50->gc.get_direction = p50_gpio_get_direction;
 	p50->gc.get = p50_gpio_get;
-	p50->gc.set = p50_gpio_set;
+	p50->gc.set_rv = p50_gpio_set;
 
 
 	/* reset mbox */

-- 
2.45.2