linux-kernel - Re: [PATCH 3/4] dt-bindings: power: supply: Max17040: Add low level SOC alert threshold

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Date:   Wed, 25 Jul 2018 12:45:59 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Matheus Castello <matheus@...tello.eng.br>
Cc:     sre@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] dt-bindings: power: supply: Max17040: Add low level
 SOC alert threshold

On 23 July 2018 at 06:08, Matheus Castello <matheus@...tello.eng.br> wrote:
> For configure low level state of charge threshold alert signaled from
> max17040 we add "maxim,alert-soc-level" property.
>
> Signed-off-by: Matheus Castello <matheus@...tello.eng.br>
> ---
>  .../bindings/power/supply/max17040_battery.txt     | 24 ++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/max17040_battery.txt
>
> diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt
> new file mode 100644
> index 000000000000..e6e4e46c03c4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt
> @@ -0,0 +1,24 @@
> +max17040_battery
> +~~~~~~~~~~~~~~~~

> +
> +Required properties :
> + - compatible : "maxim,max17040"

Why you skipped "maxim,max77836-battery"?

> +
> +Optional threshold properties :
> + If skipped the power up default value will be used
> + - maxim,alert-soc-level :     The alert threshold that sets the state of
> +                               charge level where an interrupt is generated.
> +                               max17040 can be configured from 1 up to 32.
> +
> +Remembering that for the interrupt to be handled it must also be described the
> +information of the interruption in the node.

Just mention interrupts in optional properties, including the flags.
BTW, the driver hard-codes the flags which is in contrast with DT
here.

Best regards,
Krzysztof

> +
> +Example:
> +
> +       battery-charger@36 {
> +               compatible = "maxim,max17040";
> +               reg = <0x36>;
> +               maxim,alert-soc-level = <10>;
> +               interrupt-parent = <&gpio>;
> +               interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
> +       };
> --
> 2.13.3
>
> --
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