Hi,
On Fri, Dec 12, 2014 at 08:59:44AM +1100, NeilBrown wrote:
> A "tty slave" is a device connected via UART.
> It may need a driver to, for example, power the device on
> when the tty is opened, and power it off when the tty
> is released.
>
> A "tty slave" is a platform device which is declared as a
> child of the uart in device-tree:
>
> &uart1 {
> bluetooth {
> compatible = "tty,regulator";
> vdd-supply = <&vaux4>;
> };
> };
>
> runtime power management is used to power-up the device
> on tty_open() and power-down on tty_release().
>
> Signed-off-by: NeilBrown <neilb@xxxxxxx>
FWIW:
Acked-By: Sebastian Reichel <sre@xxxxxxxxxx>
-- Sebastian
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