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    SubjectRe: [RFC PATCH 01/15] dt/powerpc: move of_bus_type infrastructure to ibmebus
    On Thu, Feb 24, 2011 at 03:46:48PM +0100, Arnd Bergmann wrote:
    > On Wednesday 23 February 2011, Grant Likely wrote:
    > > arch/powerpc/kernel/ibmebus.c is the only remaining user of the
    > > of_bus_type support code for initializing the bus and registering
    > > drivers. All others have either been switched to the vanilla platform
    > > bus or already have their own infrastructure.
    > >
    > > This patch moves the functionality that ibmebus is using out of
    > > drivers/of/{platform,device}.c and into ibmebus.c where it is actually
    > > used. Also renames the moved symbols from of_platform_* to
    > > ibmebus_bus_* to reflect the actual usage.
    > >
    > > This patch is part of moving all of the of_platform_bus_type users
    > > over to the platform_bus_type.
    > >
    > > Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
    >
    > The ibmebus is essentially the platform bus of the IBM Power Systems (a.k.a.
    > pSeries a.k.a. System p), I think it would make a lot of sense to convert
    > the two drivers (ehca and ehea) on this bus into platform drivers as well.
    >
    > The original reason for this bus was to provide a different IOMMU for them
    > than what is used on the PCI devices. This should now be possible in simpler
    > ways.

    Agreed. Anybody want to volunteer to craft a patch?

    In the mean time, do you have any problem with this patch? (assuming
    nobody is able to take on the task of converting those drivers
    immediately).

    g.



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