github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-08 14:16:18 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
cf579dfb82
linux/drivers
History
Rafael J. Wysocki cf579dfb82 PM / Sleep: Introduce "late suspend" and "early resume" of devices 
The current device suspend/resume phases during system-wide power
transitions appear to be insufficient for some platforms that want
to use the same callback routines for saving device states and
related operations during runtime suspend/resume as well as during
system suspend/resume.  In principle, they could point their
.suspend_noirq() and .resume_noirq() to the same callback routines
as their .runtime_suspend() and .runtime_resume(), respectively,
but at least some of them require device interrupts to be enabled
while the code in those routines is running.

It also makes sense to have device suspend-resume callbacks that will
be executed with runtime PM disabled and with device interrupts
enabled in case someone needs to run some special code in that
context during system-wide power transitions.

Apart from this, .suspend_noirq() and .resume_noirq() were introduced
as a workaround for drivers using shared interrupts and failing to
prevent their interrupt handlers from accessing suspended hardware.
It appears to be better not to use them for other porposes, or we may
have to deal with some serious confusion (which seems to be happening
already).

For the above reasons, introduce new device suspend/resume phases,
"late suspend" and "early resume" (and analogously for hibernation)
whose callback will be executed with runtime PM disabled and with
device interrupts enabled and whose callback pointers generally may
point to runtime suspend/resume routines.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2012-01-29 20:38:29 +01:00
..
accessibility module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
acpi Merge branches 'atomicio-apei', 'hotplug', 'sony-nvs-nosave' and 'thermal-netlink' into release 2012-01-23 19:47:06 -05:00
amba Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2012-01-08 13:10:57 -08:00
ata [libata] ata_piix: Add Toshiba Satellite Pro A120 to the quirks list 2012-01-17 20:50:53 -05:00
atm module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
auxdisplay
base PM / Sleep: Introduce "late suspend" and "early resume" of devices 2012-01-29 20:38:29 +01:00
bcma bcma: connect the bcma bus suspend/resume to the bcma driver suspend/resume 2012-01-17 09:54:08 -05:00
block nvme: fix merge error due to change of 'make_request_fn' fn type 2012-01-18 15:41:27 -08:00
bluetooth module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
cdrom block: add and use scsi_blk_cmd_ioctl 2012-01-14 15:07:24 -08:00
char agp: fix scratch page cleanup 2012-01-26 18:36:48 +00:00
clk
clocksource
connector
cpufreq Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq 2012-01-11 18:53:33 -08:00
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-01-10 22:01:27 -08:00
dca
devfreq
dio
dma Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
edac module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
eisa
firewire module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
firmware Merge commit '070680218379e15c1901f4bf21b98e3cbf12b527' into stable/for-linus-fixes-3.3 2012-01-12 11:53:55 -05:00
gpio gpio: tps65910: Use correct offset for gpio initialization 2012-01-18 13:48:43 -07:00
gpu gma500: Fix suspend/resume functions 2012-01-27 11:52:07 +00:00
hid module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
hv Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
hwmon hwmon: (adm1031) Fix coding style issues 2012-01-16 22:51:48 +01:00
hwspinlock
i2c Merge branches 'for-33/i2c/eg20t' and 'for-33/i2c/omap' into for-linus/i2c-33 2012-01-17 23:30:41 +00:00
ide block: add and use scsi_blk_cmd_ioctl 2012-01-14 15:07:24 -08:00
idle ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores 2012-01-19 21:26:32 -05:00
ieee802154
infiniband Merge branch 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-01-18 16:29:42 -08:00
input Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-01-14 12:32:16 -08:00
iommu Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 2012-01-10 11:08:21 -08:00
isdn Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-01-14 12:32:16 -08:00
leds leds: add led driver for Bachmann's ot200 2012-01-23 08:38:47 -08:00
lguest lguest: Make sure interrupt is allocated ok by lguest_setup_irq 2012-01-12 15:44:47 +10:30
macintosh module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
mca
md Merge branch 'for-3.3/core' of git://git.kernel.dk/linux-block 2012-01-15 12:24:45 -08:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-01-26 17:04:47 -08:00
memstick module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
message SCSI updates for post 3.2 merge window 2012-01-10 10:36:08 -08:00
mfd MFD: ucb1x00-ts: fix resume failure 2012-01-22 21:10:40 +00:00
misc Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
mmc Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
mtd Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
net team: send only changed options/ports via netlink 2012-01-24 15:51:00 -05:00
nfc
nubus
of 2nd set of device tree changes for v3.3 2012-01-14 13:25:55 -08:00
oprofile
parisc Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
parport Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1 2012-01-14 12:32:16 -08:00
pci kernel-doc: fix new warnings in pci 2012-01-23 08:44:53 -08:00
pcmcia PCMCIA: fix sa1111 oops on remove 2012-01-24 21:33:26 +00:00
pinctrl
platform module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
pnp
power module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
pps
ps3
ptp
rapidio
regulator regulator: Fix documentation for of_node parameter of regulator_register() 2012-01-24 10:40:06 -08:00
rtc Revert "RTC: sa1100: remove redundant code of setting alarm" 2012-01-19 17:26:26 +00:00
s390 module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
sbus
scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2012-01-26 12:43:57 -08:00
sfi
sh SH/R-Mobile updates for 3.3 merge window. 2012-01-11 23:29:20 -08:00
sn
spi Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
ssb
staging Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-01-15 12:49:56 -08:00
target
tc
telephony
thermal thermal: Rename generate_netlink_event 2012-01-23 03:15:25 -05:00
tty Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
uio Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
usb ARM/USB: at91/ohci-at91: rename vbus_pin_inverted to vbus_pin_active_low 2012-01-20 15:51:14 +01:00
uwb Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
vhost vhost-net: add module alias (v2.1) 2012-01-13 10:12:23 -08:00
video Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2012-01-26 12:43:57 -08:00
virt
virtio virtio: correct the memory barrier in virtqueue_kick_prepare() 2012-01-28 08:10:23 +10:30
vlynq
w1
watchdog watchdog: iTCO_wdt: add Intel Lynx Point DeviceIDs 2012-01-27 10:01:16 +01:00
xen PM / Sleep: Introduce "late suspend" and "early resume" of devices 2012-01-29 20:38:29 +01:00
zorro
Kconfig
Makefile mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00