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: <30a08e22-f8bb-1e42-087b-995dc525eaa4@huawei.com>
Date:   Tue, 29 Sep 2020 17:21:48 +0800
From:   "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>
To:     Rob Herring <robh@...nel.org>
CC:     devicetree <devicetree@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Wei Xu <xuwei5@...ilicon.com>, Libin <huawei.libin@...wei.com>,
        "Jonathan Cameron" <Jonathan.Cameron@...wei.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 12/20] dt-bindings: arm: hisilicon: convert
 hisilicon,hi3798cv200-perictrl bindings to json-schema

On 2020/9/29 11:18, Leizhen (ThunderTown) wrote:
> 
> 
> On 2020/9/29 3:14, Rob Herring wrote:
>> 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.
> 
> OK, I will drop #address-cells and #size-cells in this binding.

I think I misunderstood. I shoud describe child nodes here.

It's National Day the day after tomorrow, total eight days off. It's so hurry.
I'll give up this patch! And do it for v5.11

> 
>>
>>> +
>>> +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
>>>
>>>
>>
>> .
>>
> 
> 
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> linux-arm-kernel@...ts.infradead.org
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> 
> .
> 

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