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eed4d47efe
linux/drivers
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Rafael J. Wysocki eed4d47efe ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle 
The ACPI SCI (System Control Interrupt) is set up as a wakeup IRQ
during suspend-to-idle transitions and, consequently, any events
signaled through it wake up the system from that state.  However,
on some systems some of the events signaled via the ACPI SCI while
suspended to idle should not cause the system to wake up.  In fact,
quite often they should just be discarded.

Arguably, systems should not resume entirely on such events, but in
order to decide which events really should cause the system to resume
and which are spurious, it is necessary to resume up to the point
when ACPI SCIs are actually handled and processed, which is after
executing dpm_resume_noirq() in the system resume path.

For this reasons, add a loop around freeze_enter() in which the
platforms can process events signaled via multiplexed IRQ lines
like the ACPI SCI and add suspend-to-idle hooks that can be
used for this purpose to struct platform_freeze_ops.

In the ACPI case, the ->wake hook is used for checking if the SCI
has triggered while suspended and deferring the interrupt-induced
system wakeup until the events signaled through it are actually
processed sufficiently to decide whether or not the system should
resume.  In turn, the ->sync hook allows all of the relevant event
queues to be flushed so as to prevent events from being missed due
to race conditions.

In addition to that, some ACPI code processing wakeup events needs
to be modified to use the "hard" version of wakeup triggers, so that
it will cause a system resume to happen on device-induced wakeup
events even if the "soft" mechanism to prevent the system from
suspending is not enabled (that also helps to catch device-induced
wakeup events occurring during suspend transitions in progress).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-05-05 22:54:28 +02:00
..
accessibility
acpi ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle 2017-05-05 22:54:28 +02:00
amba
android sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
ata sata_via: Enable hotplug only on VT6421 2017-04-11 09:12:18 +09:00
atm sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
auxdisplay auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches 2017-03-16 16:59:55 +09:00
base ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle 2017-05-05 22:54:28 +02:00
bcma
block mtip32xx: pass BLK_MQ_F_NO_SCHED 2017-04-19 14:15:45 -06:00
bluetooth Bluetooth: btqcomsmd: fix compile-test dependency 2017-03-22 19:22:04 -07:00
bus ARM: SoC driver updates 2017-02-23 15:57:04 -08:00
cdrom
char Fixes /dev/mem to read back zeros for System RAM areas in the 1MB exception 2017-04-14 08:57:20 -07:00
clk clk: sunxi-ng: always select CCU_GATE 2017-04-28 10:47:21 -07:00
clocksource Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-04-02 09:22:03 -07:00
connector
cpufreq cpufreq: Bring CPUs up even if cpufreq_online() failed 2017-04-13 03:38:44 +02:00
cpuidle cpuidle: powernv: Pass correct drv->cpumask for registration 2017-03-29 22:55:36 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-04-10 09:37:43 -07:00
dax device-dax: switch to srcu, fix rcu_read_lock() vs pte allocation 2017-04-12 13:45:18 -07:00
dca
devfreq scripts/spelling.txt: add "followings" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
dio
dma dmaengine: Fix array index out of bounds warning in __get_unmap_pool() 2017-03-14 10:11:27 +05:30
dma-buf sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
edac EDAC, pnd2_edac: Fix reported DIMM number 2017-03-26 09:36:28 +02:00
eisa
extcon extcon: int3496: Set the id pin to direction-input if necessary 2017-03-22 18:29:48 +09:00
firewire Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax 2017-02-28 20:29:41 -08:00
firmware efi/libstub: Skip GOP with PIXEL_BLT_ONLY format 2017-04-05 09:20:18 +02:00
fmc
fpga
fsi
gpio ACPI / gpio: do not fall back to parsing _CRS when we get a deferral 2017-03-30 11:08:46 +02:00
gpu Merge branch 'linux-4.11' of git://github.com/skeggsb/linux into drm-fixes 2017-04-13 09:56:05 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-04-20 12:26:10 -07:00
hsi sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
hv Drivers: hv: vmbus: Don't leak memory when a channel is rescinded 2017-03-16 16:42:33 +09:00
hwmon hwmon: (asus_atk0110) fix uninitialized data access 2017-03-23 12:01:57 -07:00
hwspinlock
hwtracing intel_th: pci: Add Gemini Lake support 2017-03-15 14:55:18 +02:00
i2c i2c: mux: pca954x: Add missing pca9546 definition to chip_desc 2017-03-24 12:22:18 +01:00
ide sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
idle Power management turbostat utility updates for v4.11-rc1 2017-03-02 17:41:27 -08:00
iio iio: hid-sensor-attributes: Fix sensor property setting failure. 2017-04-02 11:44:03 +01:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-04-11 23:51:58 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-04-28 11:08:42 -07:00
iommu Merge branch 'for-joerg/arm-smmu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into iommu/fixes 2017-03-22 23:59:56 +01:00
ipack
irqchip irqchip/irq-imx-gpcv2: Fix spinlock initialization 2017-04-14 10:55:05 +02:00
isdn isdn: kcapi: avoid uninitialized data 2017-03-28 17:59:33 -07:00
leds sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h> 2017-03-02 08:42:27 +01:00
lguest sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
lightnvm
macintosh powerpc/pmac: Fix crash in dma-mapping.h with NULL dma_ops 2017-03-10 14:17:23 +11:00
mailbox sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
mcb
md Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-04-08 11:56:58 -07:00
media media fixes for v4.11-rc4 2017-03-24 13:34:16 -07:00
memory Linux 4.11-rc1 2017-03-06 08:37:53 -08:00
memstick
message SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
mfd staging/iio driver patches for 4.11-rc1 2017-02-22 12:14:01 -08:00
misc Char/Misc driver fixes for 4.11-rc4 2017-03-26 11:15:54 -07:00
mmc mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 card 2017-04-20 14:41:05 +02:00
mtd ubi/upd: Always flush after prepared for an update 2017-03-30 09:27:11 +02:00
net net: hso: register netdev later to avoid a race condition 2017-04-28 16:11:48 -04:00
nfc scripts/spelling.txt: add "omited" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
ntb
nubus
nvdimm libnvdimm: band aid btt vs clear poison locking 2017-04-10 17:21:45 -07:00
nvme nvme: Quirk APST off on "THNSF5256GPUK TOSHIBA" 2017-04-20 14:42:10 -06:00
nvmem
of DeviceTree updates for 4.11: 2017-02-22 19:23:14 -08:00
oprofile sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
parisc Merge branch 'parisc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2017-03-03 16:20:06 -08:00
parport parport: fix attempt to write duplicate procfiles 2017-03-16 17:32:21 +09:00
pci PCI: hisi: Fix DT binding (hisi-pcie-almost-ecam) 2017-04-12 10:46:47 -05:00
pcmcia
perf sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h> 2017-03-02 08:42:27 +01:00
phy phy: qcom-usb-hs: Add depends on EXTCON 2017-03-09 15:29:57 +05:30
pinctrl pinctrl: cherryview: Add a quirk to make Acer Chromebook keyboard work again 2017-04-11 10:09:39 +02:00
platform platform-drivers-x86 for v4.11-2 2017-03-13 13:23:43 -07:00
pnp
power scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
powercap
pps
ps3 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
ptp PTP: fix ptr_ret.cocci warnings 2017-03-20 16:25:06 +01:00
pwm pwm: rockchip: State of PWM clock should synchronize with PWM enabled state 2017-04-06 15:08:52 +02:00
rapidio drivers/rapidio/devices/tsi721.c: make module parameter variable name unique 2017-03-31 17:13:30 -07:00
ras
regulator regulator: Updates for v4.11 2017-02-20 17:23:57 -08:00
remoteproc remoteproc: qcom: fix QCOM_SMD dependencies 2017-03-20 14:45:44 -07:00
reset reset: add exported __reset_control_get, return NULL if optional 2017-04-04 17:36:10 +02:00
rpmsg virtio, vhost: optimizations, fixes 2017-03-02 13:53:13 -08:00
rtc sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-05 20:17:38 -07:00
sbus
scsi SCSI fixes on 20170424 2017-04-24 13:31:08 -07:00
sfi
sh
sn
soc sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
spi sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
spmi
ssb
staging staging: android: ashmem: lseek failed due to no FMODE_LSEEK. 2017-04-08 12:13:11 +02:00
target tcmu: Skip Data-Out blocks before gathering Data-In buffer for BIDI case 2017-04-02 16:18:51 -07:00
tc
thermal thermal: cpu_cooling: Check OPP for errors 2017-03-13 10:06:55 +08:00
thunderbolt
tty Revert "tty: don't panic on OOM in tty_set_ldisc()" 2017-04-14 10:59:56 +02:00
uio sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-04-11 23:51:58 -07:00
uwb uwb: i1480-dfu: fix NULL-deref at probe 2017-03-14 17:07:31 +08:00
vfio VFIO fixes for v4.11-rc4 2017-03-24 14:39:36 -07:00
vhost vhost-vsock: add pkt cancel capability 2017-03-21 14:41:46 -07:00
video backlight: pwm_bl: Fix GPIO out for unimplemented .get_direction() 2017-04-19 19:59:44 +01:00
virt
virtio virtio-pci: Remove affinity hint before freeing the interrupt 2017-04-11 00:30:20 +03:00
vlynq
vme
w1 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
watchdog watchdog: retu: restore MFD dependency 2017-03-01 06:15:10 -08:00
xen xenbus: remove transaction holder from list before freeing 2017-04-04 10:11:06 -04:00
zorro
Kconfig
Makefile pci-v4.11-changes 2017-02-23 11:53:22 -08:00