Re: [PATCH 00/23] Add support for Tesla Full Self-Driving (FSD) SoC

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On Thu, Jan 13, 2022 at 4:32 AM Krzysztof Kozlowski
<krzysztof.kozlowski@xxxxxxxxxxxxx> wrote:
>
> On 13/01/2022 13:11, Alim Akhtar wrote:
> > This patch set adds basic support for the Tesla Full Self-Driving (FSD)
> > SoC. This SoC contains three clusters of four Cortex-A72 CPUs,
> > as well as several IPs.
> >
> > Patches 1 to 8 provide support for the clock controller
> > (which is designed similarly to Exynos SoCs).
> >
> > The remaining changes provide pinmux support, initial device tree support,
> > and SPI, ADC, and MCT IP functionality.
>
> Does FSD have some version number? The FDS, especially in compatibles,
> looks quite generic, so what will happen if a newer SoC comes later? You
> would have:
>  - tesla,fsd-pinctrl
>  - tesla,fsd-xxxx-pinctrl (where xxxx could be some new version)
>
> This will be extra confusing, because fsd-pinctrl looks like the generic
> one, while it is specific...

The public sources from Tesla on github uses "turbo,trav" here, but
that's also not a versioned name. The platform itself (hw3/hw31 -- 3.1
I presume?) has numbering, but that's system and not SoC:
https://github.com/teslamotors/linux/tree/tesla-4.14-hw3/arch/arm64/boot/dts/turbo

It would be easy to do "fsd2" for naming/numbering if needed for
future versions, for example. I'm not so worried about this,
especially if there's no corresponding internal version numbering that
this would map naturally to.


-Olof



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