linux-kernel - Re: [PATCH-v3 1/2] mfd: devicetree: bindings: 88pm800: Add DT property for dual phase enable

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Date:	Mon, 24 Aug 2015 14:02:05 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, robh+dt@...nel.org,
	devicetree@...r.kernel.org, k.kozlowski@...sung.com,
	broonie@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH-v3 1/2] mfd: devicetree: bindings: 88pm800: Add DT
 property for dual phase enable

On Mon, 24 Aug 2015, Vaibhav Hiremath wrote:

> 88PM860 family of device supports dual phase mode on BUCK1 supply
> providing total 6A capacity.
> Note that by default they operate independently with 3A capacity.
> 
> This patch updates the devicetree binding with DT property
> to enable dual-phase mode on BUCK1.
> 
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
> ---
>  Documentation/devicetree/bindings/mfd/88pm800.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/88pm800.txt b/Documentation/devicetree/bindings/mfd/88pm800.txt
> index dec842f..2c82fcb 100644
> --- a/Documentation/devicetree/bindings/mfd/88pm800.txt
> +++ b/Documentation/devicetree/bindings/mfd/88pm800.txt
> @@ -9,6 +9,12 @@ Required parent device properties:
>  - #interrupt-cells 	: should be 1.
>  			  The cell is the 88pm80x local IRQ number
>  
> +Optional properties :
> +- marvell,88pm860-buck1-dualphase-en  : If set, enable dual phase on BUCK1,
> +  providing 6A capacity.
> +  Without this both BUCK1A and BUCK1B operates independently with 3A capacity.
> +  (This property is only applicable to 88PM860)

This will require a Regulator Ack.

My suggestion would be to remove the 'buck' number, as the same
property could be used on any Buck, and remove the '-en' part, as
this is implied.

>  88pm80x family of devices consists of varied group of sub-devices:
>  
>  Device		 	Supply Names	 Description

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