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mfd: ucb1x00: Use new GPIO 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.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250407-gpiochip-set-rv-mfd-v1-3-43f4d86d01d1@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Bartosz Golaszewski 2025-04-07 09:24:15 +02:00 • committed by Lee Jones
parent 651974212c
commit cf5c739af8
1 changed files with 5 additions and 2 deletions
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7
drivers/mfd/ucb1x00-core.c
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@ -104,7 +104,8 @@ unsigned int ucb1x00_io_read(struct ucb1x00 *ucb)
return ucb1x00_reg_read(ucb, UCB_IO_DATA);
}
static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int ucb1x00_gpio_set(struct gpio_chip *chip, unsigned int offset,
int value)
{
struct ucb1x00 *ucb = gpiochip_get_data(chip);
unsigned long flags;
@ -119,6 +120,8 @@ static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
ucb1x00_disable(ucb);
spin_unlock_irqrestore(&ucb->io_lock, flags);
return 0;
}
static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
@ -567,7 +570,7 @@ static int ucb1x00_probe(struct mcp *mcp)
ucb->gpio.owner = THIS_MODULE;
ucb->gpio.base = pdata->gpio_base;
ucb->gpio.ngpio = 10;
ucb->gpio.set = ucb1x00_gpio_set;
ucb->gpio.set_rv = ucb1x00_gpio_set;
ucb->gpio.get = ucb1x00_gpio_get;
ucb->gpio.direction_input = ucb1x00_gpio_direction_input;
ucb->gpio.direction_output = ucb1x00_gpio_direction_output;