linux-kernel - Re: [PATCH v6 04/12] dt-bindings: reset: nuvoton: add binding for ma35d1 IP reset control

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Date:   Wed, 29 Mar 2023 16:53:15 +0800
From:   Jacky Huang <ychuang570808@...il.com>
To:     Stephen Boyd <sboyd@...nel.org>, gregkh@...uxfoundation.org,
        jirislaby@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        lee@...nel.org, mturquette@...libre.com, p.zabel@...gutronix.de,
        robh+dt@...nel.org
Cc:     devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        arnd@...db.de, schung@...oton.com, mjchen@...oton.com,
        Jacky Huang <ychuang3@...oton.com>
Subject: Re: [PATCH v6 04/12] dt-bindings: reset: nuvoton: add binding for
 ma35d1 IP reset control

Dear Stephen,


On 2023/3/29 上午 01:48, Stephen Boyd wrote:
> Quoting Jacky Huang (2023-03-27 19:19:04)
>> +description:
>> +  The system reset controller can be used to reset various peripheral
>> +  controllers in MA35D1 SoC.
>> +
>> +properties:
>> +  compatible:
>> +    const: nuvoton,ma35d1-reset
>> +
>> +  '#reset-cells':
>> +    const: 1
>> +
>> +required:
>> +  - compatible
>> +  - '#reset-cells'
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  # system reset controller node:
>> +  - |
>> +
>> +    system-management@...60000 {
>> +        compatible = "nuvoton,ma35d1-sys", "syscon", "simple-mfd";
>> +        reg = <0x40460000 0x200>;
>> +
>> +        reset-controller {
>> +            compatible = "nuvoton,ma35d1-reset";
>> +            #reset-cells = <1>;
>> +        };
> This is prescribing driver details to the system-management node. The
> reset-controller node should be removed, the #reset-cells moved up one
> level, and the "nuvoton,ma35d1-sys" should match a driver that registers
> an auxiliary device for reset functionality. Is anything besides child
> nodes like 'reset-controller' using the syscon@...60000?

OK, I will modify it as:

     sys: system-management@...60000 {
         compatible = "nuvoton,ma35d1-sys", "syscon",;
         reg = <0x0 0x40460000 0x0 0x200>;
         #reset-cells = <1>;
         };
     };

And my reset driver will use compatible "nuvoton,ma35d1-sys", instead of 
"nuvoton,ma35d1-reset".
There' no other node like reset-controller.


Best regards,
Jack Huang