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Rajendra Nayak ef871432e1 i2c-omap: OMAP3: PM: (re)init for every transfer to support off-mode 
Because of OMAP off-mode, powerdomain can go off when I2C is idle.
Save enough state, and do a re-init for each transfer.

Additional save/restore state added by Jagadeesh Bhaskar Pakaravoor
(SYSC_REG) and Aaro Koskinen (wakeup sources.)

Also, The OMAP3430 TRM states:

"During active mode (I2Ci.I2C_CON[15] I2C_EN bit is set to 1), make no
changes to the I2Ci.I2C_SCLL and I2Ci.I2C_SCLH registers.  Changes may
result in unpredictable behavior."

Hence, the I2C_EN bit should be clearer when modifying these
registers. Please note that clearing the entire I2C_CON register to
disable the I2C module is safe, because the I2C_CON register is
re-configured for each transfer.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: Jagadeesh Bhaskar Pakaravoor <j-pakaravoor@ti.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Jon Hunter <jon-hunter@ti.com>
Cc: Hu Tao <taohu@motorola.com>
Cc: Xiaolong Chen <A21785@motorola.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-09 00:19:13 +00:00
..
accessibility
acpi Merge branch 'thinkpad-2.6.32' into release 2009-11-25 00:43:08 -05:00
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2009-12-08 08:18:01 -08:00
atm drivers/atm/solos-pci.c: fix warning/bug, clean up code 2009-11-18 05:03:32 -08:00
auxdisplay
base PM / Runtime: Remove unnecessary braces in __pm_runtime_set_status() 2009-12-06 16:17:57 +01:00
block drbd_req.c: use part_[inc|dec]_in_flight() 2009-12-03 17:40:51 +01:00
bluetooth Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-12-05 15:22:26 -08:00
cdrom sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6 2009-12-08 07:38:50 -08:00
clocksource
connector
cpufreq [CPUFREQ] Fix stale cpufreq_cpu_governor pointer 2009-11-17 23:15:04 -05:00
cpuidle
crypto
dca
dio m68k: don't export static inline functions 2009-12-06 11:18:28 +01:00
dma Merge branches 'at91', 'ep93xx', 'etm', 'ks8695', 'nuc', 'u300' and 'u8500' into devel 2009-12-05 10:35:18 +00:00
edac Merge branch 'perf/mce' into perf/core 2009-12-03 20:11:06 +01:00
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-12-08 08:13:10 -08:00
firmware
gpio gpio: Langwell GPIO driver bugfixes 2009-12-01 16:32:19 -08:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-11-30 13:57:19 -08:00
hid
hwmon hwmon: (adt7475) Fix sysfs file names 2009-11-16 12:45:40 +01:00
i2c i2c-omap: OMAP3: PM: (re)init for every transfer to support off-mode 2009-12-09 00:19:13 +00:00
ide Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2009-12-08 08:18:01 -08:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-12-08 08:13:10 -08:00
ieee802154 ieee802154: merge cleanup 2009-12-02 01:13:11 -08:00
infiniband Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-18 22:19:03 -08:00
input Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
isdn Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-12-05 15:22:26 -08:00
leds Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
lguest
macintosh sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
mca
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6 2009-12-08 07:38:50 -08:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2009-12-08 07:47:46 -08:00
memstick
message
mfd Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
misc Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-12-08 08:12:16 -08:00
mmc Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
mtd Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block 2009-12-08 08:19:16 -08:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6 2009-12-08 07:38:50 -08:00
nubus
of
oprofile
parisc
parport Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2009-12-08 08:13:35 -08:00
pci Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-05 09:49:07 -08:00
pcmcia Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
platform Merge branch 'misc-2.6.32' into release 2009-11-25 01:01:29 -05:00
pnp
power collie: add battery driver 2009-11-27 21:07:23 +01:00
pps pps: events reporting fix up 2009-11-12 07:26:01 -08:00
ps3
rapidio
regulator regulator: Initialise wm831x structure pointor for ISINK driver 2009-12-02 19:37:16 +00:00
rtc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2009-12-08 08:13:35 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6 2009-12-08 07:38:50 -08:00
serial Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2009-12-08 08:12:43 -08:00
sfi
sh
sn
spi Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
ssb Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-12-05 15:22:26 -08:00
staging Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block 2009-12-08 08:19:16 -08:00
tc
telephony
thermal
uio uio: pm_runtime_disable is needed if failed 2009-11-13 11:36:00 +09:00
usb Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
uwb
video Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
virtio
vlynq
w1
watchdog Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2009-12-08 08:15:29 -08:00
xen
zorro m68k: don't export static inline functions 2009-12-06 11:18:28 +01:00
Kconfig
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