fdtbus_pinctrl_parse_input_output
fdtbus_pinctrl_parse_input_output(phandle, &output_value);
fdtbus_pinctrl_parse_input_output(phandle, &output_value);
int dir = fdtbus_pinctrl_parse_input_output(phandle, &output_value);
int fdtbus_pinctrl_parse_input_output(int, int *);