linux-kernel - Re: [PATCH v4 12/20] dt-bindings: arm: hisilicon: convert hisilicon,hi3798cv200-perictrl bindings to json-schema

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Message-ID: <20200928191425.GA3099266@bogus>
Date:   Mon, 28 Sep 2020 14:14:25 -0500
From:   Rob Herring <robh@...nel.org>
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Wei Xu <xuwei5@...ilicon.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Libin <huawei.libin@...wei.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH v4 12/20] dt-bindings: arm: hisilicon: convert
 hisilicon,hi3798cv200-perictrl bindings to json-schema

On Mon, Sep 28, 2020 at 11:13:16PM +0800, Zhen Lei wrote:
> Convert the Hisilicon Hi3798CV200 Peripheral Controller binding to DT
> schema format using json-schema.
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
> ---
>  .../controller/hisilicon,hi3798cv200-perictrl.txt  | 21 ----------
>  .../controller/hisilicon,hi3798cv200-perictrl.yaml | 45 ++++++++++++++++++++++
>  2 files changed, 45 insertions(+), 21 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.txt
>  create mode 100644 Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.txt b/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.txt
> deleted file mode 100644
> index 0d5282f4670658d..000000000000000
> --- a/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.txt
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -Hisilicon Hi3798CV200 Peripheral Controller
> -
> -The Hi3798CV200 Peripheral Controller controls peripherals, queries
> -their status, and configures some functions of peripherals.
> -
> -Required properties:
> -- compatible: Should contain "hisilicon,hi3798cv200-perictrl", "syscon"
> -  and "simple-mfd".
> -- reg: Register address and size of Peripheral Controller.
> -- #address-cells: Should be 1.
> -- #size-cells: Should be 1.
> -
> -Examples:
> -
> -	perictrl: peripheral-controller@...0000 {
> -		compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
> -			     "simple-mfd";
> -		reg = <0x8a20000 0x1000>;
> -		#address-cells = <1>;
> -		#size-cells = <1>;
> -	};
> diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.yaml b/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.yaml
> new file mode 100644
> index 000000000000000..4e547017e368393
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.yaml
> @@ -0,0 +1,45 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/hisilicon/controller/hisilicon,hi3798cv200-perictrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Hisilicon Hi3798CV200 Peripheral Controller
> +
> +maintainers:
> +  - Wei Xu <xuwei5@...ilicon.com>
> +
> +description: |
> +  The Hi3798CV200 Peripheral Controller controls peripherals, queries
> +  their status, and configures some functions of peripherals.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: hisilicon,hi3798cv200-perictrl
> +      - const: syscon
> +      - const: simple-mfd
> +
> +  reg:
> +    description: Register address and size
> +    maxItems: 1
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 1

That implies child nodes. You need some sort of schema for them.

> +
> +required:
> +  - compatible
> +  - reg
> +
> +examples:
> +  - |
> +    perictrl: peripheral-controller@...0000 {
> +        compatible = "hisilicon,hi3798cv200-perictrl", "syscon", "simple-mfd";
> +        reg = <0x8a20000 0x1000>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +    };
> +...
> -- 
> 1.8.3
> 
>