linux-kernel - Re: [PATCH v7 06/14] dt-bindings: Add en7523-scu device tree binding documentation

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Message-Id: <20220106013100.842FCC36AEB@smtp.kernel.org>
Date:   Wed, 05 Jan 2022 17:30:58 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Felix Fietkau <nbd@....name>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     john@...ozen.org, linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 06/14] dt-bindings: Add en7523-scu device tree binding documentation

Quoting Felix Fietkau (2021-12-17 03:23:36)
> diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> new file mode 100644
> index 000000000000..79660f8126fa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: EN7523 Clock Device Tree Bindings
> +
> +maintainers:
> +  - Felix Fietkau <nbd@....name>
> +  - John Crispin <nbd@....name>
> +
> +description: |
> +  This node defines the System Control Unit of the EN7523 SoC,
> +  a collection of registers configuring many different aspects of the SoC.
> +
> +  The clock driver uses it to read and configure settings of the
> +  PLL controller, which provides clocks for the CPU, the bus and
> +  other SoC internal peripherals.
> +
> +  Each clock is assigned an identifier and client nodes use this identifier
> +  to specify which clock they consume.
> +
> +  All these identifiers can be found in:
> +  [1]: <include/dt-bindings/clock/en7523-clk.h>.
> +
> +  The clocks are provided inside a system controller node.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: airoha,en7523-scu
> +
> +  reg:
> +    maxItems: 2
> +
> +  "#clock-cells":
> +    description:
> +      The first cell indicates the clock number, see [1] for available
> +      clocks.
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#clock-cells'
> +

Any input clocks?

> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/en7523-clk.h>
> +    scu: scu@...20000 {

Maybe that should be system-controller@...20000 instead?

> +      compatible = "airoha,en7523-scu";
> +      reg = <0x1fa20000 0x400>,
> +            <0x1fb00000 0x1000>;
> +      #clock-cells = <1>;
> +    };