linux-kernel - Re: [PATCH 2/3] dt-bindings: clock: Document MA35D1 clock controller bindings

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Message-ID: <YkYRGNr1o087/6MM@robh.at.kernel.org>
Date:   Thu, 31 Mar 2022 15:37:44 -0500
From:   Rob Herring <robh@...nel.org>
To:     Jacky Huang <ychuang3@...oton.com>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        sboyd@...nel.org, krzk+dt@...nel.org, arnd@...db.de,
        olof@...om.net, soc@...nel.org, cfli0@...oton.com
Subject: Re: [PATCH 2/3] dt-bindings: clock: Document MA35D1 clock controller
 bindings

On Thu, Mar 31, 2022 at 10:42:55AM +0800, Jacky Huang wrote:
> Add documentation to describe Nuvoton MA35D1 clock driver bindings.
> 
> Signed-off-by: Jacky Huang <ychuang3@...oton.com>
> ---
>  .../bindings/clock/nuvoton,ma35d1-clk.yaml    | 59 +++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
> new file mode 100644
> index 000000000000..bf5474b10420
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/nuvoton,ma35d1-clk.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/nuvoton,ma35d1-clk.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nuvoton MA35D1 Clock Control Module Binding
> +
> +maintainers:
> +  - Chi-Fang Li <cfli0@...oton.com>
> +  - Jacky Huang <ychuang3@...oton.com>
> +
> +description: |
> +  The MA35D1 clock controller generates clocks for the whole chip,
> +  including system clocks and all peripheral clocks.
> +
> +  See also:
> +    dt-bindings/clock/ma35d1-clk.h
> +
> +properties:
> +  compatible:
> +    const: nuvoton,ma35d1-clk
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  assigned-clocks:
> +    maxItems: 4

These aren't usually in the clock controller...

> +
> +  assigned-clock-rates:
> +    maxItems: 4
> +
> +  clock-pll-mode:
> +    maxItems: 4

What's this? Not a standard property. Needs a type, description, and 
vendor prefix.

> +
> +required:
> +  - compatible
> +  - reg
> +  - "#clock-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  # clock control module node:
> +  - |
> +    #include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
> +
> +    clk: clock-controller@...60200 {
> +        compatible = "nuvoton,ma35d1-clk";
> +        reg = <0x40460200 0x100>;
> +        #clock-cells = <1>;
> +    };
> +...
> -- 
> 2.30.2
> 
>