Use basic_mmio_gpio to implement a generic gpio chip

This series is based on my earlier set of GPIO patches[1] to extend the
basic_mmio_driver to be used as a library to implement a more generic gpio
chip as initially implemented by Anton Vorontsov[2].

I've modified Anton's patch slightly to allow the bgpio_chip to be embedded
into another structure and converted two drivers over - bt8xxgpio and
langwell.  bt8xxgpio seems to play nicely, but langwell not so much as it
didn't previously use a gpio_chip per bank but it is a nice illustration.

Note that this is the same set of patches as attached in "Re: [PATCHv3 0/7]
gpio: extend basic_mmio_gpio for different controllers" but reposted as a set
of patches for convenience.

1. http://article.gmane.org/gmane.linux.kernel/1124700
2. http://lkml.org/lkml/2011/4/19/401

Jamie Iles (3):
  basic_mmio_gpio: split into a gpio library and platform device
  gpio/bt8xxgpio: convert to use basic_mmio_gpio library
  gpio/langwell: convert to use basic_mmio_gpio library

 drivers/gpio/Kconfig            |    8 +
 drivers/gpio/Makefile           |    1 +
 drivers/gpio/basic_mmio_gpio.c  |  317 +++++++++++++++++++++------------------
 drivers/gpio/bt8xxgpio.c        |  119 +++------------
 drivers/gpio/langwell_gpio.c    |  253 +++++++++++++++----------------
 include/linux/basic_mmio_gpio.h |   55 +++++++
 6 files changed, 381 insertions(+), 372 deletions(-)

-- 
1.7.4.4

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