Messages in this thread | | | Date | Wed, 22 Nov 2023 17:36:32 +0000 | From | Conor Dooley <> | Subject | Re: [PATCH v7 1/4] dt-bindings: pwm: Add OpenCores PWM module |
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On Wed, Nov 22, 2023 at 03:03:36PM +0800, William Qiu wrote: > > > On 2023/11/14 4:17, Conor Dooley wrote: > > On Mon, Nov 13, 2023 at 09:07:15PM +0100, Krzysztof Kozlowski wrote: > >> On 13/11/2023 10:42, William Qiu wrote: > >> > Will update. > >> >>> + > >> >>> +allOf: > >> >>> + - $ref: pwm.yaml# > >> >>> + > >> >>> +properties: > >> >>> + compatible: > >> >>> + oneOf: > >> >>> + - items: > >> >>> + - enum: > >> >>> + - starfive,jh7100-pwm > >> >>> + - starfive,jh7110-pwm > >> >>> + - const: opencores,pwm > >> >> > >> >> That's a very, very generic compatible. Are you sure, 100% sure, that > >> >> all designs from OpenCores from now till next 100 years will be 100% > >> >> compatible? > >> >> > >> > My description is not accurate enough, this is OpenCores PTC IP, and PWM > >> > is one of those modes, so it might be better to replace compatible with > >> > "opencores, ptc-pwm" > >> > > >> > What do you think? > >> > >> Sorry, maybe this answers maybe doesn't. What is "PTC"? > > > > "pwm timer counter". AFAIU, the IP can be configured to provide all 3. > > I think that William pointed out on an earlier revision that they have > > only implemented the pwm on their hardware. > > I don't think putting in "ptc" is a sufficient differentiator though, as > > clearly there could be several different versions of "ptc-pwm" that have > > the same concern about "all designs from OpenCores for now till the next > > 100 years" being compatible.
Perhaps noting what "ptc" stands for in the description field would be a good idea.
> After discussion and review of materials, we plan to use "opencores,ptc-pwm-v1" > as this version of compatible, so that it can also be compatible in the future. > > What do you think?
Do we know that it is actually "v1" of the IP? I would suggest using the version that actually matches the version of the IP that you are using in your SoC.
Thanks, Conor. [unhandled content-type:application/pgp-signature] | |