Subject: [PATCH 12/12] ARM: dts: am335x-bone-common: enable power off and rtc wake up

From: [email-masked] (Felipe Balbi)
Date: Fri, 10 Oct 2014 13:09:49 -0500

On Thu, Oct 09, 2014 at 09:06:34PM +0200, Johan Hovold wrote:
> Configure the RTC as system-power controller, which allows the system to
> be powered off as well as woken up again on subsequent RTC alarms.
> 
> Note that the PMIC needs to be put in SLEEP (rather than OFF) mode to
> maintain RTC power. Specifically, this means that the PMIC
> ti,pmic-shutdown-controller property must be left unset in order to be
> able to wake up on RTC alarms.
> 
> Tested on BeagleBone Black (rev A5).

one thing though. IIRC, rtc-only mode does not work with ES1.0 and
beagle-bone white uses that. Perhaps move this from bone-common to
boneblack.dts ?

other than that

Reviewed-by: Felipe Balbi <[email-masked]>

> Signed-off-by: Johan Hovold <[email-masked]>
> ---
>  arch/arm/boot/dts/am335x-bone-common.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
> index bde1777b62be..d0693bea9580 100644
> --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
> +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
> @@ -298,3 +298,7 @@
>  	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
>  	cd-inverted;
>  };
> +
> +&rtc {
> +	ti,system-power-controller;
> +};
> -- 
> 2.0.4
> 

-- 
balbi
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