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powerpc: 44x/gpio: use new line value setter callbacks

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struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250502-gpiochip-set-rv-powerpc-v2-3-488e43e325bf@linaro.org
This commit is contained in:
Bartosz Golaszewski 2025-05-02 10:59:49 +02:00 committed by Madhavan Srinivasan
parent 077f873325
commit 5effda1c36
1 changed files with 4 additions and 3 deletions
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7
arch/powerpc/platforms/44x/gpio.c
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@ -75,8 +75,7 @@ __ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
clrbits32(&regs->or, GPIO_MASK(gpio));
}
static void
ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
static int ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
unsigned long flags;
@ -88,6 +87,8 @@ ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
spin_unlock_irqrestore(&chip->lock, flags);
pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
return 0;
}
static int ppc4xx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
@ -179,7 +180,7 @@ static int __init ppc4xx_add_gpiochips(void)
gc->direction_input = ppc4xx_gpio_dir_in;
gc->direction_output = ppc4xx_gpio_dir_out;
gc->get = ppc4xx_gpio_get;
gc->set = ppc4xx_gpio_set;
gc->set_rv = ppc4xx_gpio_set;
ret = of_mm_gpiochip_add_data(np, mm_gc, ppc4xx_gc);
if (ret)