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    SubjectRE: [PATCH 02/10] mach-u300: rewrite gpio driver, move to drivers/gpio
    On Wednesday, April 27, 2011 6:13 AM, Linus Walleij wrote:
    > From: Linus Walleij <>
    > This rewrites the U300 GPIO driver using gpiolib and the irq_chip
    > abstractions, makes it runtime-configured rather than compile-time,
    > and moves it to the drivers/gpio subsystem where it belongs,
    > depopulating the ARM tree of one more driver.
    > Cc: Jonas Aaberg <>
    > Acked-by: Arnd Bergmann <>
    > Signed-off-by: Linus Walleij <>

    If this and other platform-specific GPIO drivers are going to be
    moved to the drivers/gpio subsystem, the Kconfig and Makefile should
    probably be updated to reflect this.

    In drivers/gpio/Kconfig:

    # platform-neutral GPIO infrastructure and expanders

    And in drivers/gpio/Makefile:

    # generic gpio support: dedicated expander chips, etc
    # NOTE: platform-specific GPIO drivers don't belong in the
    # drivers/gpio directory; put them with other platform setup
    # code, IRQ controllers, board init, etc.

    The Makefile should probably be reordered, either alphabetically
    or grouped by type (arch/mmio/i2c/spi/pci/etc) and then
    alphabetically in order to reduce merge conflicts.


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