Input: zforce - add regulator handling

It's possible that the controller has an individually switchable power supply.
Therefore add support to control a supplying regulator.

As this is not always the case, the regulator is requested as optional.

Signed-off-by: Heiko Stuebner <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
2 files changed