linux-kernel - Re: [PATCH v3 3/3] riscv: dts: starfive: Add mmc node

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Date:   Fri, 3 Feb 2023 17:35:22 +0800
From:   William Qiu <william.qiu@...rfivetech.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-mmc@...r.kernel.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/3] riscv: dts: starfive: Add mmc node



On 2023/2/3 17:30, Krzysztof Kozlowski wrote:
> On 03/02/2023 10:23, William Qiu wrote:
>> 
>> 
>> On 2023/2/3 17:02, Krzysztof Kozlowski wrote:
>>> On 03/02/2023 09:19, William Qiu wrote:
>>>> This adds the mmc node for the StarFive JH7110 SoC.
>>>
>>> Do not use "This xxx". Use imperative mode.
>>> https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95
>>>
>>>> Set mmco node to emmc and set mmc1 node to sd.
>>>>
>>>> Signed-off-by: William Qiu <william.qiu@...rfivetech.com>
>>>
>>>
>>>> +
>>>>  &gmac0_rmii_refin {
>>>>  	clock-frequency = <50000000>;
>>>>  };
>>>> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
>>>> index 64d260ea1f29..ae1a664e7af5 100644
>>>> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
>>>> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
>>>> @@ -370,6 +370,11 @@ syscrg: clock-controller@...20000 {
>>>>  			#reset-cells = <1>;
>>>>  		};
>>>>  
>>>> +		sysreg: syscon@...30000 {
>>>> +			compatible = "starfive,sysreg", "syscon";
>>>
>>> No:
>>> 1. Undocumented.
>>> 2. A bit too generic. You should have here SoC specific compatible as
>>> well (either as second or third compatible, if all your SoCs share
>>> register layout).
>>>
>> 
>> Hi Krzysztof,
>> 
>> As for the compatible, I will change it to "starfive,jh7110-sysreg"
>> in next version,but for undocumented, I don't get it, can you
>> clarify that.
>> Thank you anyway.
> 
> You need bindings for it. I don't see it in linux-next, cover letter
> dependencies nor here.
> 

I see, I will update it in next version.
Thank you for taking time to review and provide helpful comments for this patch.

Best regards,
William Qiu
> Best regards,
> Krzysztof
>