Re: [PATCH v2 2/7] bus: Introduce firewall controller framework

[Benjamin GAIGNARD]

On 1/29/20 12:17 PM, Mark Brown wrote:
> On Wed, Jan 29, 2020 at 10:52:40AM +0100, Greg KH wrote:
>
>> It just needs to be part of the bus logic for the specific bus that this
>> "firewall" is on.  Just like we do the same thing for USB or thunderbolt
>> devices.  Put this in the bus-specific code please.
> I'd expect that this is going to affect at least platform and AMBA
> buses.

Correct me if I'm wrong but creating a new type of bus would mean

that all the drivers living on this bus must be changed to register 
themselves on this bus ?

Or does a solution exist to let them live on the platform bus and call 
firewalled bus before been probed ?

All the impacted drivers could work on the existing bus with or without 
the firewall so I don't want to break

that.

Benjamin