diff options
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index aa4a60e19339..d8511cd68e7b 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1901,6 +1901,24 @@ bool gpiochip_line_is_irq(struct gpio_chip *chip, unsigned int offset) } EXPORT_SYMBOL_GPL(gpiochip_line_is_irq); +bool gpiochip_line_is_open_drain(struct gpio_chip *chip, unsigned int offset) +{ + if (offset >= chip->ngpio) + return false; + + return test_bit(FLAG_OPEN_DRAIN, &chip->gpiodev->descs[offset].flags); +} +EXPORT_SYMBOL_GPL(gpiochip_line_is_open_drain); + +bool gpiochip_line_is_open_source(struct gpio_chip *chip, unsigned int offset) +{ + if (offset >= chip->ngpio) + return false; + + return test_bit(FLAG_OPEN_SOURCE, &chip->gpiodev->descs[offset].flags); +} +EXPORT_SYMBOL_GPL(gpiochip_line_is_open_source); + /** * gpiod_get_raw_value_cansleep() - return a gpio's raw value * @desc: gpio whose value will be returned |