linux-kernel - Re: [PATCH v18 2/4] dt-bindings: power: Convert battery.txt to battery.yaml

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Message-ID: <20200729164635.cnjbadpq22tigwlc@earth.universe>
Date:   Wed, 29 Jul 2020 18:46:35 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Ricardo Rivera-Matos <r-rivera-matos@...com>
Cc:     pali@...nel.org, robh@...nel.org, afd@...com, dmurphy@...com,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, sspatil@...roid.com
Subject: Re: [PATCH v18 2/4] dt-bindings: power: Convert battery.txt to
 battery.yaml

Hi Ricardo and Dan,

On Tue, Jul 28, 2020 at 03:08:12PM -0500, Ricardo Rivera-Matos wrote:
> From: Dan Murphy <dmurphy@...com>
> 
> Convert the battery.txt file to yaml and fix up the examples.
> 
> Signed-off-by: Dan Murphy <dmurphy@...com>
> Reviewed-by: Rob Herring <robh@...nel.org>
> ---

I merged this doing some modifcations while applying, so that this
is not postponed and risking conflicts due to added properties:


> [...]
> +patternProperties:
> +  '^ocv-capacity-table-[0-100]$':
> [...]

[0-100] is a valid regex, but counterintuitively only allows 0 and
1. For example it does not apply for ocv-capacity-table-2.

I used [0-9]+ instead, which is being used by pinctrl.

> +examples:
> +  - |
> +    power {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      battery: battery {
> +        compatible = "simple-battery";
> +        over-voltage-threshold-microvolt = <4500000>;
> +        re-charge-voltage-microvolt = <250000>;
> +        voltage-min-design-microvolt = <3200000>;
> +        voltage-max-design-microvolt = <4200000>;
> +        energy-full-design-microwatt-hours = <5290000>;
> +        charge-full-design-microamp-hours = <1430000>;
> +        precharge-current-microamp = <256000>;
> +        precharge-upper-limit-microvolt = <2500000>;
> +        charge-term-current-microamp = <128000>;
> +        constant-charge-current-max-microamp = <900000>;
> +        constant-charge-voltage-max-microvolt = <4200000>;
> +        factory-internal-resistance-micro-ohms = <250000>;
> +        ocv-capacity-celsius = <(-10) 10>;

You state, that there is a table for -10 degrees and one for 10
degrees...

> +        ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>;

... and then you provide only the table for -10 degrees. I fixed
this by simply using the previous example (tables for -10, 0 and 10
degrees) and 3 tables and added a comment above the tables.

-- Sebastian

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