linux-kernel - Re: [PATCH 1/2] dt-bindings: i3c: Fix silvaco,i3c-master compatible string

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Date:   Mon, 16 Oct 2023 22:43:28 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Frank Li <Frank.li@....com>
Cc:     Conor Dooley <conor@...nel.org>, miquel.raynal@...tlin.com,
        conor.culhane@...vaco.com, alexandre.belloni@...tlin.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        joe@...ches.com, peng.fan@....com, alexander.stein@...tq-group.com,
        haibo.chen@....com, ping.bai@....com, xiaoning.wang@....com,
        sherry.sun@....com, linux-i3c@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev
Subject: Re: [PATCH 1/2] dt-bindings: i3c: Fix silvaco,i3c-master compatible
 string

On 16/10/2023 22:10, Frank Li wrote:
> On Mon, Oct 16, 2023 at 09:57:18PM +0200, Krzysztof Kozlowski wrote:
>> On 16/10/2023 21:32, Frank Li wrote:
>>> On Mon, Oct 16, 2023 at 06:30:11PM +0100, Conor Dooley wrote:
>>>> On Mon, Oct 16, 2023 at 11:24:49AM -0400, Frank Li wrote:
>>>>> In driver, compatible string is silvaco,i3c-master instead of
>>>>> silvaco,i3c-master-v1.
>>>>
>>>> And what makes the driver right & the binding wrong? AFAICT, this is an
>>>> IP sold by silvaco & the -v1 suffix was explicitly requested during
>>>> review of the binding.
>>>
>>> The driver existed for the long time. DTS files already use
>>> silvaco,i3c-master.
>>>
>>> There are two options, one change doc, the other change dts and drivers.
>>> I think change doc is easiest ways.
>>>
>>> If there are v2 in future, we can added silvaco,i3c-master-v2 in future.
>>>
>>> If everyone prefer change drivers and dts, I can work on new patch. Just
>>> break back compatiblity.
>>
>> No, because Rob explicitly pointed out too generic name.
>> https://lore.kernel.org/all/20210111200821.GA2978830@robh.at.kernel.org/
>>
>> Is it some way to avoid implementing feedback or how does it work?
> 
> Downstream use silvaco,i3c-master to match driver. Anyways, miss match

Too bad for downstream.

> happened.
> 
> option 1: fix doc
> option 2: fix driver and dts
> 
> what do you perfer? 

Fix driver and dts, keep existing compatible as deprecated.

Best regards,
Krzysztof