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    SubjectRe: [PATCH 1/3] gpio / ACPI: add ACPI support
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    On Tue, Nov 6, 2012 at 10:39 AM, Mika Westerberg
    <mika.westerberg@linux.intel.com> wrote:
    > On Mon, Nov 05, 2012 at 03:40:14PM +0100, Linus Walleij wrote:
    >> > I forgot to mention that we want to hook up _existing_ drivers to those things,
    >> > and they already use the global GPIO numbers, don't they?
    >>
    >> Yes they do, usually this is either passed from the platform using platform
    >> data or handled by device tree lookups to individual drivers.
    >>
    >> So you will have to modify each such existing driver to do ACPI
    >> probe akin to the DT codepath and call acpi_get_gpio() on every pin they
    >> need going forward. But that is the plan I guess.
    >
    > Yes, that's the plan.
    >
    > Do you think it is OK to go with this implementation (acpi_get_gpio()) for
    > now? We will try to make sure that the gpio_get() (or whatever it will be
    > called that time) supports ACPI as well.

    Yes I'll be OK with it but I don't dare to merge it unless Grant
    ACKs it.

    Yours,
    Linus Walleij


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