Re: [PATCH v3 0/3] dpum clock support for Exynos Auto v9 SoC

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On Fri, Aug 23, 2024 at 9:56 AM Kwanghoon Son <kwangson@xxxxxxxxx> wrote:

[snip]

>
> > If you are not working on a DSIM driver, I'll keep working on it for
> > 7885. If you are, I'll have to think about how to move forward.
> >
> > Best regards,
> > David
>
> + I added Sam Protsenko <semen.protsenko@xxxxxxxxxx>
> Because I also want to know maybe he has some process for drm, since he
> worked on exynos850 sysmmu.
>

I'm not working on DRM at the moment. After enabling SysMMU I've
switched to other Exynos tasks, not related to graphics. FWIW, I've
implemented the test driver for SysMMU, which you can use to verify
your SysMMU driver is functional. It's able to perform address
translations initiated from the test driver (using regular CPU). That
way you can test your SysMMU without DPU or other IP blocks initiating
the translation. You can find SysMMU test driver in GitHub repo [1],
and the commit adding the driver is [2].

All that said, I'd be excited to see DRM working on Exynos850 some
day! So please keep me in the loop, and let me know if I can help
somehow (by testing the code, etc).

Thanks!

[1] https://github.com/joe-skb7/linux/tree/e850-96-mainline-iommu
[2] https://github.com/joe-skb7/linux/commit/d712fb52a12ac0958118f9c23a4f1f0d7b9276a7

[snip]





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