linux-kernel - Re: [PATCH v2 2/3] mfd: dt-bindings: Document pulled down WRSTBI pin on S2MPS1X

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Date:	Tue, 13 Oct 2015 10:04:31 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Sangbeom Kim <sbkim73@...sung.com>, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Inki Dae <inki.dae@...sung.com>
Subject: Re: [PATCH v2 2/3] mfd: dt-bindings: Document pulled down WRSTBI pin
 on S2MPS1X

On Wed, 07 Oct 2015, Krzysztof Kozlowski wrote:

> Document a new Device Tree property 'samsung,s2mps11-wrstbi-ground'
> indicating that WRSTBI pin of S2MPS13 PMIC is pulled down so
> corresponding buck warm reset function should be disabled.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> 
> ---
> 
> Changs since v1:
> None.
> ---
>  Documentation/devicetree/bindings/mfd/s2mps11.txt | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks.

> diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
> index 90eaef393325..890f0b0e1643 100644
> --- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
> +++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
> @@ -19,6 +19,9 @@ Optional properties:
>    connected to the ground so the PMIC must manually set PWRHOLD bit in CTRL1
>    register to turn off the power. Usually the ACOKB is pulled up to VBATT so
>    when PWRHOLD pin goes low, the rising ACOKB will trigger power off.
> +- samsung,s2mps11-wrstbi-ground: Indicates that WRSTBI pin of PMIC is pulled
> +  down. When the system is suspended it will always go down thus triggerring
> +  unwanted buck warm reset (setting buck voltages to default values).
>  
>  Optional nodes:
>  - clocks: s2mps11, s2mps13 and s5m8767 provide three(AP/CP/BT) buffered 32.768

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