linux-kernel - [PATCH 01/12] gpio: dln2: use new line value setter callbacks

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Message-Id: <20250407-gpiochip-set-rv-gpio-part1-v1-1-78399683ca38@linaro.org>
Date: Mon, 07 Apr 2025 09:13:10 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Orson Zhai <orsonzhai@...il.com>, 
 Baolin Wang <baolin.wang@...ux.alibaba.com>, 
 Chunyan Zhang <zhang.lyra@...il.com>, Andy Shevchenko <andy@...nel.org>, 
 Peter Tyser <ptyser@...-inc.com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 01/12] gpio: dln2: use new 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-dln2.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c
index 596da59d4b13..4bd3c47eaf93 100644
--- a/drivers/gpio/gpio-dln2.c
+++ b/drivers/gpio/gpio-dln2.c
@@ -220,11 +220,12 @@ static int dln2_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return dln2_gpio_pin_get_out_val(dln2, offset);
 }
 
-static void dln2_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int dln2_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			 int value)
 {
 	struct dln2_gpio *dln2 = gpiochip_get_data(chip);
 
-	dln2_gpio_pin_set_out_val(dln2, offset, value);
+	return dln2_gpio_pin_set_out_val(dln2, offset, value);
 }
 
 static int dln2_gpio_set_direction(struct gpio_chip *chip, unsigned offset,
@@ -468,7 +469,7 @@ static int dln2_gpio_probe(struct platform_device *pdev)
 	dln2->gpio.base = -1;
 	dln2->gpio.ngpio = pins;
 	dln2->gpio.can_sleep = true;
-	dln2->gpio.set = dln2_gpio_set;
+	dln2->gpio.set_rv = dln2_gpio_set;
 	dln2->gpio.get = dln2_gpio_get;
 	dln2->gpio.request = dln2_gpio_request;
 	dln2->gpio.free = dln2_gpio_free;

-- 
2.45.2