Rewrite Alchemy GPIO support to be compatible with the Linux
GPIO framework, both with and without gpiolib.  For a list of
reasons, see blurb in patch #2.

Patches #3-#5 replace a few open-coded GPIO accesses in the board
files with calls to the new gpio functions.

Tested on DB1200 and a custom Au1200 platform.

History:
v7 - fix config variable evaluation bug in alchemy/Makefile
     renamed gpio-au1000.c to gpiolib-au1000.c because it's only supposed
      to be built when gpiolib is used.
     lots of build- and bugfixes in patches #3, #5
v6 - renamed gpio.[ch] to gpio-au1000.[ch], since this code only affects
     pre-Au1300 chips.  Should make integration of Au1300 GPIO a bit
     easier.
v5 - fix gpio1 bug in inlined gpio_get_value()
v4 - GPIO2 shared interrupt management, styling.
v3 - fixed thinko in alchemy_gpio2_set_value (16->32 bit)
v2 - added gpio_to_irq and irq_to_gpio, some renaming.

Manuel Lauss (5):
  Alchemy: remove unused au1000_gpio.h header
  Alchemy: rewrite GPIO support.
  Alchemy: mtx-1: use linux gpio api.
  Alchemy: xxs1500: use linux gpio api.
  Alchemy: devboards: convert to gpio calls.

 arch/mips/Makefile                               |    5 +-
 arch/mips/alchemy/Kconfig                        |   19 +-
 arch/mips/alchemy/common/Makefile                |    9 +-
 arch/mips/alchemy/common/gpio.c                  |  201 -------
 arch/mips/alchemy/common/gpiolib-au1000.c        |  130 +++++
 arch/mips/alchemy/common/reset.c                 |    5 +-
 arch/mips/alchemy/devboards/db1x00/board_setup.c |   12 +-
 arch/mips/alchemy/devboards/pb1000/board_setup.c |   10 +-
 arch/mips/alchemy/devboards/pb1100/board_setup.c |    3 +-
 arch/mips/alchemy/devboards/pb1500/board_setup.c |   10 +-
 arch/mips/alchemy/devboards/pm.c                 |    3 +-
 arch/mips/alchemy/mtx-1/board_setup.c            |   24 +-
 arch/mips/alchemy/xxs1500/board_setup.c          |   21 +-
 arch/mips/include/asm/mach-au1x00/au1000_gpio.h  |   56 --
 arch/mips/include/asm/mach-au1x00/gpio-au1000.h  |  604 ++++++++++++++++++++++
 arch/mips/include/asm/mach-au1x00/gpio.h         |   35 +-
 16 files changed, 821 insertions(+), 326 deletions(-)
 delete mode 100644 arch/mips/alchemy/common/gpio.c
 create mode 100644 arch/mips/alchemy/common/gpiolib-au1000.c
 delete mode 100644 arch/mips/include/asm/mach-au1x00/au1000_gpio.h
 create mode 100644 arch/mips/include/asm/mach-au1x00/gpio-au1000.h