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

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Message-Id: <20250506-gpiochip-set-rv-gpio-part3-v1-12-0fbdea5a9667@linaro.org>
Date: Tue, 06 May 2025 11:01:55 +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 12/12] gpio: ml-ioh: 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-ml-ioh.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 48e3768a830e7..12cf36f9ca63b 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -89,7 +89,7 @@ struct ioh_gpio {
 
 static const int num_ports[] = {6, 12, 16, 16, 15, 16, 16, 12};
 
-static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
+static int ioh_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val)
 {
 	u32 reg_val;
 	struct ioh_gpio *chip =	gpiochip_get_data(gpio);
@@ -104,6 +104,8 @@ static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
 
 	iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
 	spin_unlock_irqrestore(&chip->spinlock, flags);
+
+	return 0;
 }
 
 static int ioh_gpio_get(struct gpio_chip *gpio, unsigned nr)
@@ -222,7 +224,7 @@ static void ioh_gpio_setup(struct ioh_gpio *chip, int num_port)
 	gpio->direction_input = ioh_gpio_direction_input;
 	gpio->get = ioh_gpio_get;
 	gpio->direction_output = ioh_gpio_direction_output;
-	gpio->set = ioh_gpio_set;
+	gpio->set_rv = ioh_gpio_set;
 	gpio->dbg_show = NULL;
 	gpio->base = -1;
 	gpio->ngpio = num_port;

-- 
2.45.2