diff options
Diffstat (limited to 'drivers/gpio/gpio-generic.c')
| -rw-r--r-- | drivers/gpio/gpio-generic.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c index b5dff9e742f8..16f6115e5bdb 100644 --- a/drivers/gpio/gpio-generic.c +++ b/drivers/gpio/gpio-generic.c @@ -388,9 +388,18 @@ static int bgpio_setup_direction(struct bgpio_chip *bgc, return 0; } +static int bgpio_request(struct gpio_chip *chip, unsigned gpio_pin) +{ + if (gpio_pin < chip->ngpio) + return 0; + + return -EINVAL; +} + int bgpio_remove(struct bgpio_chip *bgc) { - return gpiochip_remove(&bgc->gc); + gpiochip_remove(&bgc->gc); + return 0; } EXPORT_SYMBOL_GPL(bgpio_remove); @@ -413,6 +422,7 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev, bgc->gc.label = dev_name(dev); bgc->gc.base = -1; bgc->gc.ngpio = bgc->bits; + bgc->gc.request = bgpio_request; ret = bgpio_setup_io(bgc, dat, set, clr); if (ret) |
