linux-kernel - Re: [PATCH 01/23] dt-bindings: clock: Document FSD CMU bindings

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Message-ID: <c87f500e-e43e-465c-94fa-050c2b0de083@canonical.com>
Date:   Thu, 13 Jan 2022 13:40:36 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     soc@...nel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, olof@...om.net,
        linus.walleij@...aro.org, catalin.marinas@....com,
        robh+dt@...nel.org, s.nawrocki@...sung.com,
        linux-samsung-soc@...r.kernel.org, pankaj.dubey@...sung.com,
        linux-fsd@...la.com
Subject: Re: [PATCH 01/23] dt-bindings: clock: Document FSD CMU bindings

On 13/01/2022 13:11, Alim Akhtar wrote:
> Add dt-schema documentation for Tesla FSD SoC clock controller.
> 
> Cc: linux-fsd@...la.com
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
>  .../bindings/clock/tesla,fsd-clock.yaml       | 212 ++++++++++++++++++
>  1 file changed, 212 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
> new file mode 100644
> index 000000000000..58f341e5004d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml
> @@ -0,0 +1,212 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Tesla FSD (Full Self-Driving) SoC clock controller
> +
> +maintainers:
> +  - Alim Akhtar <alim.akhtar@...sung.com>
> +  - linux-fsd@...la.com
> +
> +description: |
> +  FSD clock controller consist of several clock management unit
> +  (CMU), which generates clocks for various inteernal SoC blocks.
> +  The root clock comes from external OSC clock (24 MHz).
> +
> +  All available clocks are defined as preprocessor macros in
> +  'dt-bindings/clock/fsd-clk.h' header.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - tesla,fsd-clock-cmu
> +      - tesla,fsd-clock-imem
> +      - tesla,fsd-clock-peric
> +      - tesla,fsd-clock-fsys0
> +      - tesla,fsd-clock-fsys1
> +      - tesla,fsd-clock-mfc
> +      - tesla,fsd-clock-cam_csi
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 6
> +
> +  clock-names:
> +    minItems: 1
> +    maxItems: 6
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: tesla,fsd-clock-cmu
> +

Nitpick: Drop the white-spaces between if-then. It's easier to spot the
if-blocks if they are together.

> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: External reference clock (24 MHz)
> +

Drop this whitespace as well.

Rest looks good to me, except the discussion about the compatible.


Best regards,
Krzysztof