diff options
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index a71aecac451f..a18c4aa68b1e 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -62,7 +62,10 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data) int of_get_named_gpio_flags(struct device_node *np, const char *propname, int index, enum of_gpio_flags *flags) { - struct gg_data gg_data = { .flags = flags, .out_gpio = -ENODEV }; + /* Return -EPROBE_DEFER to support probe() functions to be called + * later when the GPIO actually becomes available + */ + struct gg_data gg_data = { .flags = flags, .out_gpio = -EPROBE_DEFER }; int ret; /* .of_xlate might decide to not fill in the flags, so clear it. */ |