linux-kernel - Re: [PATCH 04/12] dt-bindings: pinctrl: Add Cirrus Logic CS48L31/32/33

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Message-ID: <e0386c67-da39-b77b-2c92-6d70ee321fa9@linaro.org>
Date:   Mon, 14 Nov 2022 09:39:48 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Richard Fitzgerald <rf@...nsource.cirrus.com>, lee@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linus.walleij@...aro.org, broonie@...nel.org, tglx@...utronix.de,
        maz@...nel.org
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...nsource.cirrus.com
Subject: Re: [PATCH 04/12] dt-bindings: pinctrl: Add Cirrus Logic
 CS48L31/32/33

On 09/11/2022 17:53, Richard Fitzgerald wrote:
> Codecs in this family have multiple digital I/O functions for audio,
> DSP subsystem, GPIO and various special functions. All muxable pins
> are selectable as either a GPIO or one of the available alternate
> functions.
> 
> Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
> ---
>  .../bindings/pinctrl/cirrus,cs48l32.yaml      | 98 +++++++++++++++++++
>  1 file changed, 98 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/cirrus,cs48l32.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/cirrus,cs48l32.yaml b/Documentation/devicetree/bindings/pinctrl/cirrus,cs48l32.yaml
> new file mode 100644
> index 000000000000..b24fbae6a8f8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/cirrus,cs48l32.yaml
> @@ -0,0 +1,98 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/cirrus,cs48l32.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cirrus Logic CS48L32 audio codec pinctrl driver

Drop driver.
s/pinctrl/Pin Controller/


> +
> +maintainers:
> +  - patches@...nsource.cirrus.com
> +
> +description: |
> +The Cirrus Logic CS48L32 codec has a number of GPIO functions for
> +interfacing to external hardware. Certain groups of GPIO pins also
> +have an alternate function.
> +
> +The properties for this driver exist within the parent MFD driver node.

Drop driver... so probably entire sentence.

> +See the core bindings for the parent MFD driver for an example:

Drop driver. Describe hardware instead.

> +
> +    Documentation/devicetree/bindings/mfd/cirrus,cs48l32.yaml
> +
> +And the generic pinctrl bindings:
> +
> +    Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt

Drop entire sentence.

> +
> +properties:

Your schema does not match on its own. Where is the compatible? This is
not how schemas for devices (also MFD) is done.

> +  pin-settings:
> +    description:
> +      One subnode is required to contain the default settings. It
> +      contains an arbitrary number of configuration subnodes, one for
> +      each group or pin configuration you want to apply as a default.
> +    type: object
> +    patternProperties:
> +      '-pins$':
> +        type: object
> +        allOf:
> +          - $ref: "pincfg-node.yaml#"
> +          - $ref: "pinmux-node.yaml#"

Drop quotes.

Except this, test your patches before sending.

Best regards,
Krzysztof