69175786d5
Make the AUX pin optional, since it isn't a core part of functionality, and the device is designed to be operational with only one CTRL pin. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Markuss Broks <markuss.broks@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>