diff options
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index cd003b74512f6..bd90737dce77a 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1201,6 +1201,14 @@ int gpiochip_add_data(struct gpio_chip *chip, void *data) struct gpio_desc *desc = &gdev->descs[i]; desc->gdev = gdev; + + if (chip->request) { + status = chip->request(chip, i); + if (status < 0) + /* The GPIO is unavailable, so skip it */ + continue; + } + /* * REVISIT: most hardware initializes GPIOs as inputs * (often with pullups enabled) so power usage is @@ -1226,6 +1234,9 @@ int gpiochip_add_data(struct gpio_chip *chip, void *data) */ set_bit(FLAG_IS_OUT, &desc->flags); } + + if (chip->free) + chip->free(chip, i); } #ifdef CONFIG_PINCTRL |