linux-kernel - Re: [PATCH v5 1/6] dt-bindings: power: Introduce one property to present the battery internal resistance

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Date:   Sun, 21 Oct 2018 18:21:39 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Baolin Wang <baolin.wang@...aro.org>
Cc:     robh+dt@...nel.org, mark.rutland@....com, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        yuanjiang.yu@...soc.com, broonie@...nel.org, ctatlor97@...il.com,
        linus.walleij@...aro.org
Subject: Re: [PATCH v5 1/6] dt-bindings: power: Introduce one property to
 present the battery internal resistance

Hi,

On Fri, Oct 19, 2018 at 06:53:10PM +0800, Baolin Wang wrote:
> The internal resistance of a battery is not a constant in its life cycle,
> this varies over the age of the battery or temperature and so on. But we
> just want use one constant battery internal resistance to estimate the
> battery capacity. Thus this patch introduces one property to present
> the battery factory internal resistance for battery information.
> 
> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> ---

Looks good to me.

-- Sebastian

> Changes from v4:
>  - None.
> 
> Changes from v3:
>  - Split binding into one separate patch.
>  - Add LinusW reviewed tag.
> 
> Changes from v2:
>  - Rename the property.
>  - Improve the commit message.
> 
> Changes from v1:
>  - New patch in v2.
> ---
>  .../devicetree/bindings/power/supply/battery.txt   |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
> index f4d3b4a..938d027 100644
> --- a/Documentation/devicetree/bindings/power/supply/battery.txt
> +++ b/Documentation/devicetree/bindings/power/supply/battery.txt
> @@ -22,6 +22,7 @@ Optional Properties:
>   - charge-term-current-microamp: current for charge termination phase
>   - constant-charge-current-max-microamp: maximum constant input current
>   - constant-charge-voltage-max-microvolt: maximum constant input voltage
> + - factory-internal-resistance-micro-ohms: battery factory internal resistance
>  
>  Battery properties are named, where possible, for the corresponding
>  elements in enum power_supply_property, defined in
> @@ -42,6 +43,7 @@ Example:
>  		charge-term-current-microamp = <128000>;
>  		constant-charge-current-max-microamp = <900000>;
>  		constant-charge-voltage-max-microvolt = <4200000>;
> +		factory-internal-resistance-micro-ohms = <250000>;
>  	};
>  
>  	charger: charger@11 {
> -- 
> 1.7.9.5
> 

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