[PATCH v4 00/12] gpio/omap: Some more driver cleanup and fixes

[Tarun Kanti DebBarma]

The cleanup is mostly getting rid of redundant fields in struct gpio_bank{}
as we already have them as part of bank->context now. Also, remove un-used
variable from gpio_irq_handler. Also, the suspend/resume callbacks are
removed bacause they are not needed any more.

The fixes include correction of _set_gpio_irqenable() implementation,
missing wakeup_en register update in set_gpio_wakeup(), type mismatch
of gpio trigger parameter in set_gpio_trigger(), incorrect dataout
register update in set_gpio_dataout_() and few corrections in context
save logic.

It is baselined on top of:
git://git.secretlab.ca/git/linux-2.6.git gpio/next
Commit: 81b279d80a63628e580c71a31d30a8c3b3047ad4

Series is available here for reference:
git://gitorious.org/~tarunkanti/omap-sw-develoment/tarunkantis-linux-omap-dev for_3.4/gpio_more_cleanup_fixes

Power Test: 
Off-mode and Retention on OMAP3430 (Suspend and Idle paths).
Also confirmed that dataout register content preserved over
off-mode.
            
Functional Test:
OMAP2430, OMAP3430SDP, ZOOM3, OMAP4430, OMAP4-BLAZE, PANDA 

v4:
a) Implemented all comments on v3 which are mostly related to
avoiding unnecessary register read while updating the context.

b) Folded:
gpio/omap: fix dataout register overwrite in _set_gpio_dataout
into:
gpio/omap: fix missing dataout context save in _set_gpio_dataout_reg

v3:
- Added 4 more additional patches to the previous series
 which are all bug fixes.

v2:
- Added a new patch to update wakeup_en register in _set_gpio_wakeup()
 in addition to updating bank->context.wake_en.

- Added a new patch to remove redundant decoding of gpio offset in
 gpio_get(), _get_gpio_datain() and _get_gpio_dataout().

- Added a new patch to remove suspend/resume callbacks because the
 operations performed with the callbacks are redundant.

Tarun Kanti DebBarma (12):
  gpio/omap: remove saved_fallingdetect, saved_risingdetect fields
  gpio/omap: fix wakeup_en register update in _set_gpio_wakeup()
  gpio/omap: remove suspend_wakeup field from struct gpio_bank
  gpio/omap: remove saved_wakeup field from struct gpio_bank
  gpio/omap: get rid of retrigger variable in gpio_irq_handler
  gpio/omap: fix trigger type to unsigned
  gpio/omap: fix _set_gpio_irqenable implementation
  gpio/omap: remove redundant decoding of gpio offset
  gpio/omap: remove suspend/resume callbacks
  gpio/omap: fix missing dataout context save in _set_gpio_dataout_reg
  gpio/omap: fix incorrect context restore logic in omap_gpio_runtime_*
  gpio/omap: fix incorrect update to context.irqenable1

 drivers/gpio/gpio-omap.c |  131 +++++++++++++---------------------------------
 1 files changed, 37 insertions(+), 94 deletions(-)