linux-kernel - Re: [PATCH v2 2/4] dt-bindings: hwmon/pmbus: Add mps,mpq7932 power-management IC

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Date:   Thu, 1 Dec 2022 17:16:52 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Saravanan Sekar <saravanan@...umiz.com>, jdelvare@...e.com,
        linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, marten.lindahl@...s.com
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/4] dt-bindings: hwmon/pmbus: Add mps,mpq7932
 power-management IC

On 01/12/2022 05:46, Saravanan Sekar wrote:
> Document mpq7932 power-management IC
> 
> Signed-off-by: Saravanan Sekar <saravanan@...umiz.com>
> ---
>  .../bindings/hwmon/pmbus/mps,mpq7932.yaml     | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq7932.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq7932.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq7932.yaml
> new file mode 100644
> index 000000000000..5f20c59eb7ff
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq7932.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/pmbus/mps,mpq7932.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Monolithic Power System MPQ7932 PMIC
> +
> +maintainers:
> +  - Saravanan Sekar <saravanan@...umiz.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mps,mpq7932
> +
> +  reg:
> +    maxItems: 1
> +
> +  regulators:
> +    type: object

The comment was - drop regulators node if you have just one regulator...
but it turns out you have more regulators? Then you need to follow
regulator bindings. Open few and take a look.

> +
> +    description: |
> +      list of regulators provided by this controller, must be named
> +      after their hardware counterparts BUCK[1-6]
> +

This misses patternProperties.

> +      "^buck[1-6]$":
> +        type: object
> +        $ref: regulator.yaml#
> +        unevaluatedProperties: false
> +
> +    additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - regulators
> +
> +additionalProperties: false


Best regards,
Krzysztof