input: Add support for ECI (multimedia) accessories

From: Tapio Vihuri <tapio.vihuri@nokia.com>

Thank you for comments.

ECI input driver changes:

- Makefile and Kconfig sorted alphabetically
- using sparse keymap library, much cleaner solution
- correct string aligment with 80 column
- debugfs initialization fix
- sysfs cable entry using just 0/1
- using cheaper __set_bit
- insane comments fixed
- remove unneeded misc device

Created against linux-2.6.37-rc8 at:
989d873 Merge master.kernel.org:/home/rmk/linux-2.6-arm

--- v2 message ---

Thank you for comments.

In series two there Kconfig dependency problem fixed, preventing compilation
if X86_MRST (Intel Moorestown) or INPUT_MISC is not selected.

Also created against linux-2.6.37-rc8

--- v1 message ---

Hi all

This patch set introduce Multimedia Headset Accessory support for
Nokia phones. Technically those are known as ECI (Enhancement Control Interface)
	
If headset has many buttons, like play, vol+, vol- etc. then it is propably ECI
accessory.

Among several buttons ECI accessories contains memory for storing several
parameters.

This ECI input driver provides the following features:
 - reading ECI configuration memory
 - ECI buttons as input events

Drive is constructed as follows:
 - ECI accessory input driver deals with headset accessory
 - ECI bus control driver deals the HW transfering data to/from headset
 - platform data match used HW

In the future accessory detection logic will be added using ALSA jack reporting.

Created against linux-2.6.37-rc6

Please review.


Tapio Vihuri (3):
  ECI: input: introduce ECI accessory input driver
  ECI: introducing ECI bus driver
  ECI: adding platform data for ECI driver

 arch/x86/platform/mrst/mrst.c |   59 +++
 drivers/Kconfig               |    2 +
 drivers/Makefile              |    1 +
 drivers/ecibus/Kconfig        |   35 ++
 drivers/ecibus/Makefile       |   10 +
 drivers/ecibus/ecibus.c       |  583 +++++++++++++++++++++++++
 drivers/input/misc/Kconfig    |   19 +
 drivers/input/misc/Makefile   |    2 +-
 drivers/input/misc/eci.c      |  945 +++++++++++++++++++++++++++++++++++++++++
 include/linux/input/eci.h     |  165 +++++++
 10 files changed, 1820 insertions(+), 1 deletions(-)
 create mode 100644 drivers/ecibus/Kconfig
 create mode 100644 drivers/ecibus/Makefile
 create mode 100644 drivers/ecibus/ecibus.c
 create mode 100644 drivers/input/misc/eci.c
 create mode 100644 include/linux/input/eci.h