diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-at91.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 93ab277d9943..6c2727bd55bc 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1449,18 +1449,19 @@ static int at91_gpio_get(struct gpio_chip *chip, unsigned offset) return (pdsr & mask) != 0; } -static void at91_gpio_set(struct gpio_chip *chip, unsigned offset, - int val) +static int at91_gpio_set(struct gpio_chip *chip, unsigned int offset, int val) { struct at91_gpio_chip *at91_gpio = gpiochip_get_data(chip); void __iomem *pio = at91_gpio->regbase; unsigned mask = 1 << offset; writel_relaxed(mask, pio + (val ? PIO_SODR : PIO_CODR)); + + return 0; } -static void at91_gpio_set_multiple(struct gpio_chip *chip, - unsigned long *mask, unsigned long *bits) +static int at91_gpio_set_multiple(struct gpio_chip *chip, + unsigned long *mask, unsigned long *bits) { struct at91_gpio_chip *at91_gpio = gpiochip_get_data(chip); void __iomem *pio = at91_gpio->regbase; @@ -1472,6 +1473,8 @@ static void at91_gpio_set_multiple(struct gpio_chip *chip, writel_relaxed(set_mask, pio + PIO_SODR); writel_relaxed(clear_mask, pio + PIO_CODR); + + return 0; } static int at91_gpio_direction_output(struct gpio_chip *chip, unsigned offset, @@ -1798,8 +1801,8 @@ static const struct gpio_chip at91_gpio_template = { .direction_input = at91_gpio_direction_input, .get = at91_gpio_get, .direction_output = at91_gpio_direction_output, - .set = at91_gpio_set, - .set_multiple = at91_gpio_set_multiple, + .set_rv = at91_gpio_set, + .set_multiple_rv = at91_gpio_set_multiple, .dbg_show = at91_gpio_dbg_show, .can_sleep = false, .ngpio = MAX_NB_GPIO_PER_BANK, @@ -1819,12 +1822,16 @@ static int at91_gpio_probe(struct platform_device *pdev) struct at91_gpio_chip *at91_chip = NULL; struct gpio_chip *chip; struct pinctrl_gpio_range *range; + int alias_idx; int ret = 0; int irq, i; - int alias_idx = of_alias_get_id(np, "gpio"); uint32_t ngpio; char **names; + alias_idx = of_alias_get_id(np, "gpio"); + if (alias_idx < 0) + return alias_idx; + BUG_ON(alias_idx >= ARRAY_SIZE(gpio_chips)); if (gpio_chips[alias_idx]) return dev_err_probe(dev, -EBUSY, "%d slot is occupied.\n", alias_idx); |