Re: [PATCH 00/10] Add new feature controller framework

[Sascha Hauer <sha@pengutronix.de>]

On Tue, Aug 30, 2022 at 09:38:57AM +0200, Ahmad Fatoum wrote:
> Hello Sascha,
> 
> On 30.08.22 09:32, Sascha Hauer wrote:
> > Hi Ahmad,
> > 
> > On Thu, Aug 18, 2022 at 07:19:45AM +0200, Ahmad Fatoum wrote:
> >> The i.MX8MM exists in a Lite variant with no VPUs as well as Solo and
> >> Dual variants with one or two cores respectively instead of the default
> >> four. For i.MX6, we had a manual fixup taking care of deleting the
> >> excess CPUs, but for e.g. the i.MX8MP, we have fuses for the M7, VPUs, CAN,
> >> CAN-FD, ISPs, NPU, ... etc. Describing all that in the DT is overly verbose
> >> as we need to take care not to rely on specific device node names that
> >> should be disabled. There has been an upstream attempt to get a binding
> >> for U-Boot to act on:
> >>
> >>   https://lore.kernel.org/all/20220324042024.26813-1-peng.fan@oss.nxp.com/
> >>
> >> This was refused by the DT maintainer, because any solution to this
> >> problem should also be flexible enough to cover the case of partitioning
> >> devices between the secure and normal world.
> >>
> >> There's a patch series upstream to describe a domain-controller binding
> >> that allows a hypervisor to partition devices into domains. With the
> >> naming generalized, this fits nicely the use case of gating devices
> >> behind specific features:
> >>
> >> https://lore.kernel.org/all/3ca7cd75-4b62-2380-adb0-646bbeb647a2@pengutronix.de/
> >>
> >> This series does that. See the first two commit messages for details.
> >> We use a barebox, prefix as the naming isn't set in stone, but the intention
> >> is to drop the prefix and potentially rename once an upstream binding is
> >> approved.
> > 
> > I am fine with this series. Is this still the way you want to have it
> > merged or do you have an update?
> 
> No updates, please apply series, except for last two RFC commits.

Did that.

Sascha

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