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

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On 2023/2/28 23:32, Emil Renner Berthing wrote:
> On Tue, 28 Feb 2023 at 16:10, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>> On 2/28/23 05:16, 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@xxxxxxxxxxxxxxxx> wrote:
>> >>>>>> On 2023/2/26 22:14, Emil Renner Berthing wrote:
>> >>>>>>> On Mon, 20 Feb 2023 at 09:21, Xingyu Wu <xingyu.wu@xxxxxxxxxxxxxxxx> 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'.
>>
>>
>> Up to the devicetree maintainers to decide, but I for my part never accept
>> wildcards in file names. You can not guarantee that all of jh71[0-9]0 will
>> be supported by this set of bindings. On top of that, when / if you add
>> support for anything outside that range (say, jh7200 or jh8100 or jh7101
>> or whatever) you'd have an even worse problem. Are you then going to suggest
>> renaming the file to jhxxxx-wdt ? Or one digit at a time ?
> 
> Makes sense to me, in which case this should be called
> starfive,jh7100-wdt since that's the first SoC to feature this
> watchdog and will hopefully be supported in the next version of this
> patchset.
> 

Thanks for your suggestions. I will use starfive,jh7100-wdt and improve this
driver to support 7100 in the next patchset.

Best regards,
Xingyu Wu




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