linux-kernel - Re: [PATCH v2 2/3] phy: starfive: Add mipi dphy rx support

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Message-ID: <374e7ebd-bf39-2792-2847-24b14d1d871d@starfivetech.com>
Date:   Mon, 3 Apr 2023 14:39:27 +0800
From:   Changhuang Liang <changhuang.liang@...rfivetech.com>
To:     Vinod Koul <vkoul@...nel.org>
CC:     Conor Dooley <conor.dooley@...rochip.com>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Conor Dooley <conor@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jack Zhu <jack.zhu@...rfivetech.com>,
        <linux-phy@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v2 2/3] phy: starfive: Add mipi dphy rx support



On 2023/4/3 14:34, Vinod Koul wrote:
> On 03-04-23, 14:31, Changhuang Liang wrote:
>>
>>
>> On 2023/4/3 14:24, Conor Dooley wrote:
>>> On Mon, Apr 03, 2023 at 09:39:00AM +0800, Changhuang Liang wrote:
>>>> On 2023/3/31 21:52, Vinod Koul wrote:
>>>>> On 21-03-23, 14:08, Changhuang Liang wrote:
>>>>>> On 2023/3/20 20:37, Vinod Koul wrote:
>>>>>>> On 22-02-23, 17:59, Changhuang Liang wrote:
> 
>>>>>>>> +static int stf_dphy_configure(struct phy *phy, union phy_configure_opts *opts)
>>>>>>>> +{
>>>>>>>> +	struct stf_dphy *dphy = phy_get_drvdata(phy);
>>>>>>>> +	int map[6] = {4, 0, 1, 2, 3, 5};
>>>>>>>
>>>>>>> what does this mean?
>>>>>>
>>>>>> This is the physical lane and logical lane mapping table, should I add a note for it?
>>>>>
>>>>> Yes please. Also will the mapping be always static or ever change?
>>>>>  
>>>>
>>>> The mapping is always static on the visionfive2 single board computer.
>>>> Thanks for your comments.
>>>
>>> What about other boards featuring a JH7110?
>>
>> maybe add this mapping in the device tree, we just need to parse the device tree is better.
> 
> If the mapping is hw description then yes it makes sense
> 

Yes, different hardware may be described differently, I will change it in next version.