Tarun,

I am interested in testing these patches on AM335x. Do you have a tree with these 
patches applied so that I can pull. 

On Thu, Feb 02, 2012 at 23:00:26, DebBarma, Tarun Kanti wrote:

The following changes since commit 62aa2b537c6f5957afd98e29f96897419ed5ebab:
  Linus Torvalds (1):
        Linux 3.3-rc2

are available in the git repository at:
http://gitorious.org/~tarunkanti/omap-sw-develoment/tarunkantis-linux-omap-dev
Branch: for_3.4/gpio_cleanup_fixes_v9

This series is continuation of cleanup of OMAP GPIO driver and fixes.
The cleanup include getting rid of cpu_is_* checks wherever possible,
use of gpio_bank list instead of static array, use of unique platform
specific value associated data member to OMAP platforms to avoid
cpu_is_* checks. The series also include PM runtime support.

Power Tests
a) OMAP3430SDP
- Modify board-3430sdp.c file to have multiple GPIO modules active
  with debounce timeout enabled.
- Enable CPU-Idle
- Enable UART timeouts
- Enable offmode
- echo mem > /sys/power/state
- Verify retention and offmode count increment

  Used following patches to avoid exception during system suspend:-
  [PATCH RFC 1/2] mtd : Prevent the NULL pointer access
  [PATCH RFC 2/2] mtd : Make the mtd_suspend return 0 if the suspend is not implemented

# echo mem > /sys/power/state
[   47.128021] PM: Syncing filesystems ... done.
[   47.144104] Freezing user space processes ... (elapsed 0.01 seconds) done.
[   47.168243] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) don                                                                                                 e.
[   47.205139] Unable to handle kernel NULL pointer dereference at virtual addre                                                                                                 ss 000000a0
[   47.213317] pgd = deaac000
[   47.216033] [000000a0] *pgd=9e932831, *pte=00000000, *ppte=00000000
[   47.222381] Internal error: Oops: 17 [#1] SMP
[   47.226745] Modules linked in:
[   47.229827] CPU: 0    Not tainted  (3.3.0-rc2-00031-g12c5c5c #235)
[   47.236022] PC is at mtd_cls_suspend+0x8/0x20
[   47.240386] LR is at mtd_cls_suspend+0x8/0x20
[   47.244750] pc : [<c02e78f8>]    lr : [<c02e78f8>]    psr: a0000013
[   47.244750] sp : dea1fe60  ip : 22222222  fp : c0ee7d40
[   47.256256] r10: c0ee7cf0  r9 : 00000000  r8 : c02e78f0
[   47.261474] r7 : 00000000  r6 : 00000000  r5 : 00000002  r4 : dea45800
[   47.268005] r3 : deb4cac0  r2 : 00000000  r1 : 00000002  r0 : 00000000
[   47.274536] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   47.281677] Control: 10c5387d  Table: 9eaac019  DAC: 00000015
[   47.287445] Process sh (pid: 1177, stack limit = 0xdea1e2f8)
[   47.293090] Stack: (0xdea1fe60 to 0xdea20000)
[...]

b) ZOOM3
- Enable CPU-Idle
- Enable UART timeout
- echo mem > /sys/power/state
- Wakeup system using serial keyboard
- Verify retention count increment

Functional Tests
- Done on OMAP2430, OMAP3430SDP, ZOOM3, OMAP4430

Bootup Test
- Done on OMAP1710
  Used following patch to fix OMAP1 build error:-
  [PATCH] i2c: OMAP: Fix OMAP1 build error

[..]
[..]

Charulatha V (8):
  gpio/omap: remove dependency on gpio_bank_count
  gpio/omap: use flag to identify wakeup domain
  gpio/omap: make gpio_context part of gpio_bank structure
  gpio/omap: make non-wakeup GPIO part of pdata
  gpio/omap: avoid cpu checks during module ena/disable
  gpio/omap: use pinctrl offset instead of macro
  gpio/omap: remove bank->method & METHOD_* macros
  gpio/omap: fix bankwidth for OMAP7xx MPUIO

Nishanth Menon (4):
  gpio/omap: save and restore debounce registers
  gpio/omap: enable irq at the end of all configuration in restore
  gpio/omap: restore OE only after setting the output level
  gpio/omap: handle set_dataout reg capable IP on restore

Tarun Kanti DebBarma (13):
  gpio/omap: handle save/restore context in GPIO driver
  gpio/omap: further cleanup using wkup_en register
  gpio/omap: use level/edge detect reg offsets
  gpio/omap: remove hardcoded offsets in context save/restore
  gpio/omap: cleanup set_gpio_triggering function
  gpio/omap: cleanup omap_gpio_mod_init function
  gpio/omap: remove unnecessary bit-masking for read access
  gpio/omap: use pm-runtime framework
  gpio/omap: optimize suspend and resume functions
  gpio/omap: cleanup prepare_for_idle and resume_after_idle
  gpio/omap: fix debounce clock handling
  gpio/omap: fix incorrect access of debounce module
  gpio/omap: remove omap_gpio_save_context overhead

 arch/arm/mach-omap1/gpio15xx.c         |    7 +-
 arch/arm/mach-omap1/gpio16xx.c         |   47 ++-
 arch/arm/mach-omap1/gpio7xx.c          |   14 +-
 arch/arm/mach-omap2/gpio.c             |   36 +-
 arch/arm/mach-omap2/pm34xx.c           |   14 -
 arch/arm/plat-omap/include/plat/gpio.h |   29 +-
 drivers/gpio/gpio-omap.c               | 1099 +++++++++++++-------------------
 7 files changed, 549 insertions(+), 697 deletions(-)


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel at lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Regards, 
Gururaja