linux-kernel - Re: [PATCH v4 4/5] dt-bindings: mfd: Add ADI MAX77541/MAX77540

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Message-ID: <813bd536-083d-1af4-90f2-059485aec8c1@linaro.org>
Date:   Wed, 1 Feb 2023 15:47:31 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Okan Sahin <okan.sahin@...log.com>
Cc:     Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Ramona Bolboaca <ramona.bolboaca@...log.com>,
        Caleb Connolly <caleb.connolly@...aro.org>,
        ChiYuan Huang <cy_huang@...htek.com>,
        William Breathitt Gray <william.gray@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org
Subject: Re: [PATCH v4 4/5] dt-bindings: mfd: Add ADI MAX77541/MAX77540

On 01/02/2023 11:35, Okan Sahin wrote:
> Add ADI MAX77541/MAX77540 devicetree document.
> 
> Signed-off-by: Okan Sahin <okan.sahin@...log.com>
> ---
>  .../devicetree/bindings/mfd/adi,max77541.yaml | 87 +++++++++++++++++++
>  1 file changed, 87 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/adi,max77541.yaml b/Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> new file mode 100644
> index 000000000000..91d15e9ca2e3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> @@ -0,0 +1,87 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/adi,max77541.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MAX77540/MAX77541 PMIC from ADI
> +
> +maintainers:
> +  - Okan Sahin <okan.sahin@...log.com>
> +
> +description: |
> +  MAX77540 is a Power Management IC with 2 buck regulators.
> +
> +  MAX77541 is a Power Management IC with 2 buck regulators and 1 ADC.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,max77540
> +      - adi,max77541
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  regulators:
> +    $ref: /schemas/regulator/adi,max77541-regulator.yaml#
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: adi,max77540
> +    then:
> +      properties:
> +        regulator:
> +          properties:
> +            compatible:
> +              const: adi,max77540-regulator
> +    else:
> +      properties:
> +        regulator:
> +          properties:
> +            compatible:
> +              const: adi,max77541-regulator

You do not use these compatibles and they do not bring the benefit.
Probably this should be all dropped.

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        pmic@69 {
> +            compatible = "adi,max77541";
> +            reg = <0x69>;
> +            interrupt-parent = <&gpio>;
> +            interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
> +
> +            regulators {

So no compatible?

Best regards,
Krzysztof