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SubjectRE: [PATCH v9 00/25] gpio/omap: driver cleanup and fixes
Date
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@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>


Regards,
Gururaja


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