These patches reimplement the reset fuction in the ac97 to use gpio pins
instead of using the mpc5200 ac97 reset functionality in the psc.  This
avoids a problem in which attached ac97 devices go into "test" mode appear
unresponsive.

These patches were tested on a pcm030 baseboard and on custom hardware with
a wm9715 audio codec/touchscreen controller.

Eric Millbrandt

---

changes since v1
- Refactored to manipulate port_config and gpio pins internally instead of
  exporting an API.
- Amended commit message with comments from Mark Brown
- Refactored to move the port_config manipulation to platform code.
- Remove the gpio pins from the device-tree

Eric Millbrandt (2):
    powerpc/5200: add mpc5200_psc_ac97_gpio_reset
    sound/soc: mpc5200_psc_ac97: Use gpio pins for cold reset

 arch/powerpc/include/asm/mpc52xx.h           |    1 +
 arch/powerpc/platforms/52xx/mpc52xx_common.c |  103 ++++++++++++++++++++++=
++++
 sound/soc/fsl/mpc5200_psc_ac97.c             |   33 +++++++-
 3 files changed, 133 insertions(+), 4 deletions(-)

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