linux-kernel - Re: [PATCH v2 1/2] dt-bindings: power: supply: gpio-charger: Add status-gpios property

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Date:   Fri, 5 Apr 2019 17:43:17 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Artur Rojek <contact@...ur-rojek.eu>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: Re: [PATCH v2 1/2] dt-bindings: power: supply: gpio-charger: Add
 status-gpios property

Hi,

On Tue, Feb 26, 2019 at 04:04:36PM +0100, Artur Rojek wrote:
> Add documentation for the "status-gpios" property.
> Update the "gpios" property with a valid example.
> 
> Signed-off-by: Artur Rojek <contact@...ur-rojek.eu>
> ---
> 
> Changes:
> 
> v2: - add a better description for the "status-gpios" property,
>     - add valid examples for the "gpios" and "status-gpios" properties
> 
>  .../devicetree/bindings/power/supply/gpio-charger.txt       | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/gpio-charger.txt b/Documentation/devicetree/bindings/power/supply/gpio-charger.txt
> index adbb5dc5b6e9..999cc245543c 100644
> --- a/Documentation/devicetree/bindings/power/supply/gpio-charger.txt
> +++ b/Documentation/devicetree/bindings/power/supply/gpio-charger.txt
> @@ -14,12 +14,16 @@ Required properties :
>       usb-cdp (USB charging downstream port)
>       usb-aca (USB accessory charger adapter)
>  
> +Optional properties:
> + - status-gpios: GPIO indicating whether a battery is charging.

I think it's better to name this charge-status-gpios, since charger
may provide all kind of status GPIOs. For example the existing
gpios property (also bad name, but cannot be changed easily now),
which provides AC online status.

Otherwise the binding and the driver patch looks good to me.

-- Sebastian

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