linux-kernel - Re: [PATCH] dt-bindings: mfd: maxim,max8998: Convert to DT schema

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Message-ID: <20230722-occupant-outflank-bf433bc728c5@spud>
Date:   Sat, 22 Jul 2023 12:57:55 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: mfd: maxim,max8998: Convert to DT schema

On Fri, Jul 21, 2023 at 06:17:12PM +0200, Krzysztof Kozlowski wrote:
> Convert the bindings for Maxim MAX8998, National/TI LP3974 Power
> Management IC to DT schema.  Adjust example to real DTS and make second
> interrupt optional (like on s5pv210-aries.dtsi).
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  .../devicetree/bindings/mfd/max8998.txt       | 125 -------
>  .../bindings/mfd/maxim,max8998.yaml           | 324 ++++++++++++++++++
>  2 files changed, 324 insertions(+), 125 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/mfd/max8998.txt
>  create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max8998.yaml

> diff --git a/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
> new file mode 100644
> index 000000000000..f3c3f64fd012
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/maxim,max8998.yaml
> @@ -0,0 +1,324 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/maxim,max8998.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim MAX8998, National/TI LP3974 Power Management IC
> +
> +maintainers:
> +  - Krzysztof Kozlowski <krzk@...nel.org>
> +
> +description:
> +  The Maxim MAX8998 is a Power Management IC which includes voltage/current
> +  regulators, real time clock, battery charging controller and several other
> +  sub-blocks. It is interfaced using an I2C interface. Each sub-block is
> +  addressed by the host system using different i2c slave address.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - maxim,max8998
> +      - national,lp3974
> +      - ti,lp3974

Should one of these be marked as deprecated?

> +  regulators:
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      CHARGER:
> +        type: object
> +        $ref: /schemas/regulator/regulator.yaml#
> +        unevaluatedProperties: false
> +        description:
> +          CHARGER is main battery charger current control, wrongly represented
> +          as regulator.
> +
> +        properties:
> +          regulator-min-microamp:
> +            minimum: 90000
> +            maximum: 800000
> +
> +          regulator-max-microamp:
> +            minimum: 90000
> +            maximum: 800000

Did you pull these from the datasheet, or from the dts/example?
> +
> +          regulator-min-microvolt: false
> +          regulator-max-microvolt: false


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