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path: root/drivers/gpio
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-rw-r--r--drivers/gpio/gpio-generic.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
index b5dff9e742f8..fea8c82bb8fc 100644
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -388,6 +388,14 @@ 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);
@@ -413,6 +421,7 @@ 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)