linux-kernel - Re: [RESEND v2 1/6] dt-bindings: power: Add JH7110 AON PMU support

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Date:   Thu, 4 May 2023 11:36:11 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Changhuang Liang <changhuang.liang@...rfivetech.com>,
        Conor Dooley <conor@...nel.org>
Cc:     Conor Dooley <conor.dooley@...rochip.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Walker Chen <walker.chen@...rfivetech.com>,
        Hal Feng <hal.feng@...rfivetech.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, vkoul@...nel.org,
        linux-phy@...ts.infradead.org
Subject: Re: [RESEND v2 1/6] dt-bindings: power: Add JH7110 AON PMU support

On 04/05/2023 10:43, Changhuang Liang wrote:
> 
> 
> On 2023/5/4 15:26, Krzysztof Kozlowski wrote:
>> On 04/05/2023 09:20, Changhuang Liang wrote:
>>>>>
>>>>> Krzysztof,
>>>>>
>>>>> I am confused about what to do next. How to add this power-controller's
>>>>> node in device tree?
>>>>>
>>>>
>>>> You just move power-domain-cells up.
>>>>
>>>> Best regards,
>>>> Krzysztof
>>>>
>>>
>>> Like this? 
>>>
>>> aon_syscon: syscon@...10000 {
>>> 	compatible = "starfive,jh7110-aon-syscon", "syscon", "starfive,jh7110-aon-pmu";
>>> 	reg = <0x0 0x17010000 0x0 0x1000>;
>>> 	#power-domain-cells = <1>;
>>> };
>>>
>>> If right? I will tell the syscon patch's owner delete the "simple-mfd" in aon_syscon node.
>>
>> Yes, but your compatibles are now wrong. Just compatible =
>> "starfive,jh7110-aon-syscon", "syscon".
>>
> 
> If compatible = "starfive,jh7110-aon-syscon", "syscon". My pmu drivers need use 
> "starfive,jh7110-aon-syscon" to match.

And how it would even work with your proposal
"starfive,jh7110-aon-syscon", "syscon", "starfive,jh7110-aon-pmu"?

Try...

>  And my pmu series will add this 
> aon_syscon in yaml and device tree, so the syscon patch's owner don't need 
> to add the aon_syscon in its yaml and device tree?

I don't understand. But if you need to drop syscon, sure, drop it.

Best regards,
Krzysztof