linux-kernel - Re: [PATCH 1/2] mfd: AS3722: add dt node properties for system power controller

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Date:	Thu, 19 Dec 2013 13:06:10 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	anton@...msg.org, dwmw2@...radead.org, mark.rutland@....com,
	rob@...dley.net, ijc+devicetree@...lion.org.uk, swarren@...dia.com,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mfd: AS3722: add dt node properties for system power
 controller

On Thu, 19 Dec 2013, Laxman Dewangan wrote:

> ams AS3722 device supports the power off by turning off its all rails.
> 
> Add dt node properties to enable this functionality on this device.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
> ---
>  Documentation/devicetree/bindings/mfd/as3722.txt |    9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/as3722.txt b/Documentation/devicetree/bindings/mfd/as3722.txt
> index fc2191e..1e54937 100644
> --- a/Documentation/devicetree/bindings/mfd/as3722.txt
> +++ b/Documentation/devicetree/bindings/mfd/as3722.txt
> @@ -112,6 +112,15 @@ Following are properties of regulator subnode.
>  		ams,enable-tracking: Enable tracking with SD1, only supported
>  			by LDO3.
>  
> +Power-off:
> +=========
> +AS3722 supports the system power off by turning off all its rail. The power off
> +is provided through pm power off.

I think pm_power_off is a Linuxisum.

> +The device node should have the following properties to enable power-off

Why is it power-off here and power off everywhere else?

> +functionality from ams AS3722:
> +ams,system-power-controller: To enable the power off functionality through
> +	device.

Do what with it? "on", "<1>", something else?

>  Example:
>  --------
>  #include <dt-bindings/mfd/as3722.h>

Should it be represented in the example?

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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