diff options
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 9b241bcb5107..9cd7082cca08 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -164,16 +164,17 @@ struct gpio_desc *gpio_to_desc(unsigned gpio) EXPORT_SYMBOL_GPL(gpio_to_desc); /** - * Convert an offset on a certain chip to a corresponding descriptor + * Get the GPIO descriptor corresponding to the given hw number for this chip. */ -static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip, - unsigned int offset) +struct gpio_desc *gpiochip_get_desc(struct gpio_chip *chip, + u16 hwnum) { - if (offset >= chip->ngpio) + if (hwnum >= chip->ngpio) return ERR_PTR(-EINVAL); - return &chip->desc[offset]; + return &chip->desc[hwnum]; } +EXPORT_SYMBOL_GPL(gpiochip_get_desc); /** * Convert a GPIO descriptor to the integer namespace. @@ -2190,7 +2191,7 @@ EXPORT_SYMBOL_GPL(gpiod_lock_as_irq); int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset) { - return gpiod_lock_as_irq(gpiochip_offset_to_desc(chip, offset)); + return gpiod_lock_as_irq(gpiochip_get_desc(chip, offset)); } EXPORT_SYMBOL_GPL(gpio_lock_as_irq); @@ -2212,7 +2213,7 @@ EXPORT_SYMBOL_GPL(gpiod_unlock_as_irq); void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset) { - return gpiod_unlock_as_irq(gpiochip_offset_to_desc(chip, offset)); + return gpiod_unlock_as_irq(gpiochip_get_desc(chip, offset)); } EXPORT_SYMBOL_GPL(gpio_unlock_as_irq); @@ -2433,7 +2434,7 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, return ERR_PTR(-EINVAL); } - desc = gpiochip_offset_to_desc(chip, p->chip_hwnum); + desc = gpiochip_get_desc(chip, p->chip_hwnum); *flags = p->flags; return desc; |