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Lokesh Vutla 41814eed41 Watchdog: OMAP: Fix the runtime pm code to avoid module getting stuck intransition state. 
OMAP watchdog driver is adapted to runtime PM like a general device
driver but it is not appropriate. It is causing couple of functional
issues.

1. On OMAP4 SYSCLK can't be gated, because of issue with WDTIMER2 module,
which constantly stays in "in transition" state. Value of register
CM_WKUP_WDTIMER2_CLKCTRL is always 0x00010000 in this case.
Issue occurs immediately after first idle, when hwmod framework tries
to disable WDTIMER2 functional clock - "wd_timer2_fck". After this
module falls to "in transition" state, and SYSCLK gating is blocked.

2. Due to runtime PM, watchdog timer may be completely disabled.
In current code base watchdog timer is not disabled only because of
issue 1. Otherwise state of WDTIMER2 module will be "Disabled", and there
will be no interrupts from omap_wdt. In other words watchdog will not
work at all.

Watchdong is a special IP and it should not be disabled otherwise
purpose of it itself is defeated. Watchdog functional clock should
never be disabled. This patch updates the runtime PM handling in
driver so that runtime PM is limited only during probe/shutdown
and suspend/resume.

The patch fixes issue 1 and 2

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
 		2012-07-23 12:50:11 +02:00
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accessibility
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acpi Merge branch 'pm-acpi' 2012-07-19 00:03:35 +02:00
amba arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00
ata Viresh has moved 2012-06-20 14:39:36 -07:00
atm solos-pci: Fix DMA support 2012-05-24 16:22:53 -04:00
auxdisplay
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base Power management updates for 3.6 2012-07-22 13:36:52 -07:00
bcma bcma: fix null pointer in bcma_core_pci_irq_ctl 2012-06-08 13:47:07 -04:00
block Power management updates for 3.6 2012-07-22 13:36:52 -07:00
bluetooth Bluetooth: btmrvl: Do not send vendor events to bluetooth stack 2012-06-19 00:19:11 -03:00
cdrom
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char char/ipmi: remove local ioctl defines replaced by generic ones 2012-07-23 12:48:04 +02:00
clk Clk: SPEAr1340: Update sys clock parent array 2012-07-18 10:04:53 +05:30
clocksource clocksource: sh_tmu: Use clockevents_config_and_register(). 2012-06-11 17:10:16 +09:00
connector
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cpufreq cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch 2012-07-20 21:39:25 +02:00
cpuidle Merge branch 'pm-domains' 2012-07-19 00:03:17 +02:00
crypto PM / crypto / ux500: Use struct dev_pm_ops for power management 2012-07-10 21:37:33 +02:00
dca
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devfreq Power management updates for 3.5 2012-05-23 14:07:06 -07:00
dio
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dma Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma 2012-06-20 22:12:52 -07:00
edac edac: Do alignment logic properly in edac_align_ptr() 2012-06-11 12:43:16 -03:00
eisa
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extcon extcon: max8997: Add missing kfree for info->edev in max8997_muic_remove() 2012-06-18 16:30:42 -07:00
firewire IEEE 1394 (FireWire) subsystem updates post v3.4: 2012-05-24 12:57:47 -07:00
firmware
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gpio gpio/gpio-tps65910: gpio_chip.of_node referenced without CONFIG_OF_GPIO defined 2012-07-10 22:53:31 +02:00
gpu gma500,cdv: Fix the brightness base 2012-07-16 09:20:33 -07:00
hid Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-07-19 08:15:55 -07:00
hsi
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hv Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
hwmon Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-07-22 16:07:45 -07:00
hwspinlock hwspinlock/core: use global ID to register hwspinlocks on multiple devices 2012-07-07 22:35:30 +03:00
i2c i2c: Add generic I2C multiplexer using pinctrl API 2012-06-04 16:49:43 +02:00
ide drivers/ide/ide-cs.c: adjust suspicious bit operation 2012-06-12 15:51:41 -07:00
idle ACPI: intel_idle : break dependency between modules 2012-07-05 22:37:47 +02:00
ieee802154
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iio iio: drop wrong reference from Kconfig 2012-06-14 17:28:46 -07:00
infiniband Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-07-22 13:31:57 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-07-13 10:33:18 -07:00
iommu Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-07-22 12:19:36 -07:00
isdn drivers/isdn/mISDN/stack.c: remove invalid reference to list iterator variable 2012-07-09 15:24:33 -07:00
leds leds: heartbeat: fix bug on panic 2012-07-04 15:55:19 +08:00
lguest
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macintosh
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md Three fixes for device-mapper discard processing: 2012-07-20 11:51:22 -07:00
media cx25821: Remove bad strcpy to read-only char* 2012-07-19 08:15:33 -07:00
memory
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memstick
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message Merge branch 'akpm' (Andrew's patch-bomb) 2012-05-31 18:10:18 -07:00
mfd Linux 3.5-rc7 2012-07-15 21:49:21 +01:00
misc Merge branch 'akpm' (Andrew's patch-bomb) 2012-07-11 16:06:54 -07:00
mmc mmc: sdhci-dove: Prepare for common clock framework 2012-07-22 16:42:48 -04:00
mtd Late MTD fixes for 3.5: 2012-07-13 09:56:26 -07:00
net ixgbevf: Fix panic when loading driver 2012-07-17 02:56:53 -07:00
nfc NFC: potential integer overflow problem in check_crc() 2012-05-25 11:16:16 -04:00
nubus
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of ARM: SoC fixes for 3.5-rc 2012-07-11 12:44:25 -07:00
oprofile oprofile, perf: Use per-cpu framework 2012-06-22 16:31:20 +02:00
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
parport Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
pci PCI: EHCI: fix crash during suspend on ASUS computers 2012-07-10 09:52:05 -07:00
pcmcia
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pinctrl pinctrl: pinctrl-imx6q: add missed mux function for USBOTG_ID 2012-07-14 22:32:10 +02:00
platform Power management updates for 3.6 2012-07-22 13:36:52 -07:00
pnp
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power A bunch of fixes for v3.5, nothing extraordinary. 2012-05-31 12:10:15 -07:00
pps
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ps3
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ptp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
rapidio rapidio/tsi721: add DMA engine support 2012-05-31 17:49:31 -07:00
regulator Merge branch 'regulator-drivers' into regulator-next 2012-07-22 19:32:00 +01:00
remoteproc remoteproc: fix missing CONFIG_FW_LOADER configurations 2012-07-04 11:01:12 +03:00
rpmsg rpmsg: fix dependency on initialization order 2012-07-17 13:10:38 +03:00
rtc Merge branch 'pm-drivers' 2012-07-19 00:03:42 +02:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-05-31 10:51:10 -07:00
sbus
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scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-07-22 13:31:57 -07:00
sfi
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sh sh: intc: Kill off special reservation interface. 2012-05-22 19:07:55 +09:00
sn
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spi SPI: fix over-eager devm_xxx() conversion 2012-06-18 11:27:04 +01:00
ssb
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staging Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-06-25 14:53:09 -07:00
target iscsi-target: Drop bogus struct file usage for iSCSI/SCTP 2012-07-21 02:44:13 -07:00
tc
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thermal
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tty tty/hvc_opal: Fix debug function name 2012-07-10 19:16:25 +10:00
uio
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usb Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-07-22 13:31:57 -07:00
uwb
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vhost vhost: use USER_DS in vhost_worker thread 2012-06-26 21:10:56 -07:00
video fbdev fixes for 3.5 2012-07-11 16:17:14 -07:00
virt
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virtio virtio-balloon: fix add/get API use 2012-07-09 09:07:22 +09:30
vlynq
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vme
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w1 arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
watchdog Watchdog: OMAP: Fix the runtime pm code to avoid module getting stuck intransition state. 2012-07-23 12:50:11 +02:00
xen Five bug-fixes: 2012-06-15 17:17:15 -07:00
zorro
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Kconfig Staging tree pull request for 3.5-rc1 2012-05-22 16:34:21 -07:00
Makefile arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00