On Mon, Oct 05, 2020 at 11:14:27AM +0300, Dmitry Osipenko wrote:
> 05.10.2020 10:13, Thierry Reding пишет:
> ...
> > Have you also seen that sun50i-iommu does look up the SMMU from a
> > phandle using of_find_device_by_node()? So I think you've shown yourself
> > that even "modern" drivers avoid global pointers and look up via
> > phandle.
> 
> I have no problem with the lookup by phandle and I'm all for it. It's
> now apparent to me that you completely missed my point, but that should
> be my fault that I haven't conveyed it properly from the start. I just
> wanted to avoid the incompatible DT changes which could break older DTs
> + I simply wanted to improve the older code without introducing new
> features, that's it.
> 
> Anyways, after yours comments I started to look at how the interconnect
> patches could be improved and found new things, like that OPPs now
> support ICC and that EMC has a working EMC_STAT, I also discovered
> syscon and simple-mfd. This means that we won't need the global pointers
> at all neither for SMMU, nor for interconnect, nor for EMC drivers :)

Well, evidently discussion on mailing lists actually works. =)

Thierry