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    SubjectRe: [RFC] [PATCH] Device Tree on ARM platform
    From: David Gibson <>
    Date: Thu, 28 May 2009 12:52:58 +1000

    > The of_platform bus model is conceptually completely broken, but in
    > practice only slightly broken for all common cases.

    The fact that every single SBUS and EBUS driver for sparc is now an
    of_platform driver, and the fact that as a further result joint
    SBUS/PCI drivers are now almost completely unified, speaks volumes to
    the fact that it is not broken.

    Yes, you'll have some non-shared probing code, one to fetch the
    resources from PCI/platform_device/whatever and one for of_device.

    But, I say big deal.

    The rest remains entirely unified, even the DMA calls are all the
    same in unified SBUS/EBUS/PCI device drivers. It just works.

     \ /
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