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f0d781d59c
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Yi Yang f0d781d59c USB: improve ehci_watchdog's side effect in CPU power management 
ehci_watchdog will wake up CPU very frequently so that CPU
stays at C3 very short, average residence time is about 50
ms on Aspire One, but we expect it should be about 1 second
or more, so this kind of periodic timer is very bad for power
saving.

We can't remove this timer because of some bad USB controller
chipset, but at least we should reduce its side effect to as
possible as low.

This patch can make CPU stay at C3 longer, average residence time
is about twice as long as original. 

Please consider to apply it, thanks

Signed-off-by: Yi Yang <yi.y.yang@intel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17 14:41:02 -07:00
..
accessibility
acpi rtc-cmos: move wake setup from ACPI glue into RTC driver 2008-10-14 16:08:21 -07:00
amba
ata Merge commit 'origin' 2008-10-15 11:31:54 +11:00
atm
auxdisplay
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
block ub: remove sg_stat 2008-10-17 14:40:52 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
cdrom
char Merge branch 'agp-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6 2008-10-16 12:43:49 -07:00
clocksource
connector
cpufreq
cpuidle
crypto
dca device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
dio
dma
edac edac i5000: fix thermal issues 2008-10-16 11:21:48 -07:00
eisa
firewire firewire: fix ioctl() return code 2008-10-15 22:21:10 +02:00
firmware Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-16 15:17:40 -07:00
gpio gpiolib: request/free hooks 2008-10-16 11:21:40 -07:00
gpu misc: replace __FUNCTION__ with __func__ 2008-10-16 11:21:30 -07:00
hid Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
hwmon hwmon: (adm1026) Prevent log spamming 2008-10-17 17:51:20 +02:00
i2c hwmon: (ams) Convert to a new-style i2c driver 2008-10-17 17:51:12 +02:00
ide block: remove __generic_unplug_device() from exports 2008-10-17 14:03:08 +02:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-10-16 15:02:24 -07:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-17 09:00:23 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2008-10-16 11:52:08 -07:00
isdn device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
leds device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
lguest
macintosh device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
mca
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-17 09:00:23 -07:00
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
memstick
message i2o: Fix 32/64bit DMA locking 2008-10-16 11:21:38 -07:00
mfd Merge branch 's3c-move' into devel 2008-10-14 22:24:51 +01:00
misc Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
mmc Merge branch 'fixes' into for-linus 2008-10-15 23:16:07 +01:00
mtd Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-10-17 08:58:52 -07:00
nubus nubus: fix mis-indented statement 2008-10-16 11:21:30 -07:00
of Merge commit 'gcl/gcl-next' 2008-10-14 10:11:27 +11:00
oprofile Merge branch 'linus' into oprofile-v2 2008-10-13 11:05:51 +02:00
parisc
parport parport: remove CVS keywords 2008-10-16 11:21:49 -07:00
pci {pci,pnp} quirks.c: don't use deprecated print_fn_descriptor_symbol() 2008-10-16 16:11:43 -07:00
pcmcia [ARM] 5307/1: pxa: fix CM-X2XX PCMCIA build error 2008-10-15 12:34:50 +01:00
pnp {pci,pnp} quirks.c: don't use deprecated print_fn_descriptor_symbol() 2008-10-16 16:11:43 -07:00
power Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
ps3
rapidio
regulator da903x: add regulator support for DA9030/DA9034 2008-10-13 21:51:57 +01:00
rtc rtc: rtc-ds1286 and rtc-m48t35 need <linux/io.h> 2008-10-16 11:32:38 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-10-17 09:29:55 -07:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-17 09:00:23 -07:00
serial Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-10-16 11:25:32 -07:00
sh
sn
spi Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
staging staging: at76_usb wireless driver 2008-10-13 14:33:13 -07:00
tc
telephony telephony: remove CVS keywords 2008-10-16 11:21:45 -07:00
thermal
uio UIO: Fix mapping of logical and virtual memory 2008-10-16 09:24:54 -07:00
usb USB: improve ehci_watchdog's side effect in CPU power management 2008-10-17 14:41:02 -07:00
video Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
virtio
w1 w1: new driver. DS2431 chip 2008-10-16 11:21:51 -07:00
watchdog Merge branch 's3c-move' into devel 2008-10-14 22:24:51 +01:00
xen
zorro
Kconfig
Makefile