linux-kernel - Re: [PATCH v3 2/2] drivers: watchdog: Add StarFive Watchdog driver

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Date:   Tue, 28 Feb 2023 15:03:24 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Xingyu Wu <xingyu.wu@...rfivetech.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-watchdog@...r.kernel.org,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...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>,
        Samin Guo <samin.guo@...rfivetech.com>,
        linux-kernel@...r.kernel.org, Conor Dooley <conor@...nel.org>
Subject: Re: [PATCH v3 2/2] drivers: watchdog: Add StarFive Watchdog driver

On 28/02/2023 14:16, Xingyu Wu wrote:
> On 2023/2/28 19:11, Conor Dooley wrote:
>> On Tue, Feb 28, 2023 at 11:57:58AM +0100, Krzysztof Kozlowski wrote:
>>> On 28/02/2023 11:51, Conor Dooley wrote:
>>>> On Tue, Feb 28, 2023 at 11:36:49AM +0100, Emil Renner Berthing wrote:
>>>>> On Tue, 28 Feb 2023 at 10:44, Xingyu Wu <xingyu.wu@...rfivetech.com> wrote:
>>>>>> On 2023/2/26 22:14, Emil Renner Berthing wrote:
>>>>>>> On Mon, 20 Feb 2023 at 09:21, Xingyu Wu <xingyu.wu@...rfivetech.com> wrote:
>>>>
>>>>>> So the dt-bingdings need to rename, and which one could be better,
>>>>>> 'starfive,jh71x0-wdt.yaml' or 'starfive,jh-wdt.yaml'?
>>>>>
>>>>> Sure, starfive,jh71x0-wdt.yaml sounds good to me.
>>>>
>>>> I feel like a common comment I see from the dt folks is to not put
>>>> wildcards in filenames & just pick the first compatible.
>>>> I could very well be wrong on that front though...
>>>
>>> First compatible is a bit better, unless you are sure this will cover
>>> all such compatibles now and in the future. For many bindings the
>>> family/wildcards were fine in filename.
>>
>> Ahh cool, good to know what the specific policy is - thanks!
> 
> If this watchdog driver is improved to also support JH7100 in next patch,
> it seems more reasonable to rename the dt-bingdings to 'starfive,jh71x0-wdt.yaml'.

Bindings are for hardware, not drivers. One version of driver in one OS
should not determine the bindings...

Best regards,
Krzysztof