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serial: max310x: 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/20250408-gpiochip-set-rv-tty-v1-1-fb49444827d4@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski 2025-04-08 09:42:00 +02:00 committed by Greg Kroah-Hartman
parent 9d64c6ae2d
commit 2318a48868
1 changed files with 5 additions and 2 deletions
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7
drivers/tty/serial/max310x.c
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@ -1189,13 +1189,16 @@ static int max310x_gpio_get(struct gpio_chip *chip, unsigned int offset)
return !!((val >> 4) & (1 << (offset % 4)));
}
static void max310x_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
static int max310x_gpio_set(struct gpio_chip *chip, unsigned int offset,
int value)
{
struct max310x_port *s = gpiochip_get_data(chip);
struct uart_port *port = &s->p[offset / 4].port;
max310x_port_update(port, MAX310X_GPIODATA_REG, 1 << (offset % 4),
value ? 1 << (offset % 4) : 0);
return 0;
}
static int max310x_gpio_direction_input(struct gpio_chip *chip, unsigned int offset)
@ -1411,7 +1414,7 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty
s->gpio.direction_input = max310x_gpio_direction_input;
s->gpio.get = max310x_gpio_get;
s->gpio.direction_output= max310x_gpio_direction_output;
s->gpio.set = max310x_gpio_set;
s->gpio.set_rv = max310x_gpio_set;
s->gpio.set_config = max310x_gpio_set_config;
s->gpio.base = -1;
s->gpio.ngpio = devtype->nr * 4;