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Date:   Wed, 19 Apr 2023 14:10:41 +0800
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Subject: Re: [PATCH v4 1/3] dt-bindings: phy: Add starfive,jh7110-dphy-rx
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To:     Rob Herring <robh@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
CC:     Vinod Koul <vkoul@kernel.org>,
        Kishon Vijay Abraham I <kishon@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Conor Dooley <conor@kernel.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Jack Zhu <jack.zhu@starfivetech.com>,
        <linux-phy@lists.infradead.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-riscv@lists.infradead.org>
References: <20230412084540.295411-1-changhuang.liang@starfivetech.com>
 <20230412084540.295411-2-changhuang.liang@starfivetech.com>
 <8dd0dc63-e0df-8764-f756-da032d9d671c@linaro.org>
 <eb47b7c7-bdbb-92d9-ba39-604ce487f297@starfivetech.com>
 <f6a4fb28-d635-4d99-44bb-d929cb41eef2@linaro.org>
 <b34a8d59-34e4-8358-9d2b-367f4707ca7c@starfivetech.com>
 <f0d82428-aaa5-3dd4-bc29-f1057fe749bc@linaro.org>
 <20230418184246.GA2103246-robh@kernel.org>
 <CAL_JsqKVa+XHkoDbDLaD+haC2J7QDJ_oLr9RAT=7Pvwa-rWHLg@mail.gmail.com>
From:   Changhuang Liang <changhuang.liang@starfivetech.com>
In-Reply-To: <CAL_JsqKVa+XHkoDbDLaD+haC2J7QDJ_oLr9RAT=7Pvwa-rWHLg@mail.gmail.com>
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On 2023/4/19 2:46, Rob Herring wrote:
> On Tue, Apr 18, 2023 at 1:42 PM Rob Herring <robh@kernel.org> wrote:
>>
>> On Thu, Apr 13, 2023 at 10:41:23AM +0200, Krzysztof Kozlowski wrote:
>>> On 13/04/2023 04:34, Changhuang Liang wrote:
>>>>>>>> +  lane_maps:
>>>>>>>
>>>>>>> Why did this appear? Underscores are not allowed. It looks like you
>>>>>>> re-implement some standard property.
>>>>>>>
>>>>>>
>>>>>> Will change to lane-maps.
>>>>>> Yes, according to Vinod advice, lane mapping table use device tree
>>>>>> to parse makes sense.
>>>>>
>>>>> Hm, I have a feeling that I saw such property, so you should dig into
>>>>> existing and in-flight bindings.
>>>>>
>>>>> Best regards,
>>>>> Krzysztof
>>>>>
>>>>
>>>> A standard property? Like "clocks" or "resets"?
>>>
>>> Like lane-polarities now submitted to one MIPI.
>>>
>>
>> data-lanes perhaps?
> 
> Except that is for the controller's endpoint rather than the phy.
> Presumably if the controller knows the mapping, then it can tell the
> phy if it needs the information. IOW, don't just copy 'data-lanes' to
> the phy. Follow the normal patterns.
> 
> Rob

I am not sure if phy can fetch from the other controller's endpoint. In 
addition, like our JH7110 SoC, it have data-lanes configure (data-lanes = <1 2>)
in csi2rx controller, but this data-lanes configure is not appropriate to phy, 
maybe they are independent.