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Roland Stigge
4fbb0022cb
of_get_named_gpio_flags() and of_get_named_gpio() return -EPROBE_DEFER if the respective GPIO is not (yet) available. This is useful if driver's probe() functions try to get a GPIO whose controller isn't probed yet. Thus, the driver can be probed again later on. The function still returns -EINVAL on other errors (parse error or node doesn't exist). This way, the case of an optional/intentionally missing GPIO is handled appropriately. Signed-off-by: Roland Stigge <[email protected]> Acked-by: Alexandre Pereira da Silva <[email protected]> Signed-off-by: Linus Walleij <[email protected]>