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Mark Brown f21e0e81d8 regulator: Do bulk enables of regulators in parallel 
In order to reduce the impact of ramp times rather than enabling the
regulators for a device in series use async tasks to run the actual
enables. This means that the delays which the enables implement can all
run in parallel, though it does mean that the order in which the
supplies come on may be unstable.

For super bonus fun points if any of the regulators are shared between
multiple supplies on the same device (as is rather likely) then this
will test our locking.  Note that in this case we only delay once for
each physical regulator so the threads shouldn't block each other while
delaying.

It'd be even nicer if we could coalesce writes to a shared enable registers
in PMICs but that's definitely future work, and it may also be useful
and is certainly more achievable to optimise out the parallelism if none
of the regulators implement ramp delays.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-30 11:56:57 +01:00
..
accessibility
acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-05-29 11:19:16 -07:00
amba ARM: 6829/1: amba: make hardcoded periphid override hardware 2011-05-26 10:33:34 +01:00
ata Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block 2011-05-25 09:14:07 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2011-05-20 13:43:21 -07:00
auxdisplay
base mm: per-node vmstat: show proper vmstats 2011-05-25 08:39:07 -07:00
bcma drivers/bcma/host_pci.c needs slab.h 2011-05-26 17:12:32 -07:00
block Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-05-29 11:18:09 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2011-05-24 13:28:35 -07:00
cdrom Merge commit 'v2.6.39' into for-2.6.40/core 2011-05-20 20:33:15 +02:00
char drivers/char/ppdev.c: put gotten port value 2011-05-26 17:12:37 -07:00
clk
clocksource Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2011-05-23 21:24:07 -07:00
connector
cpufreq cpufreq: make DB8500 cpufreq driver compile 2011-05-24 22:20:14 +02:00
cpuidle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-05-29 11:18:09 -07:00
crypto [S390] ap: skip device registration on type probe failure 2011-05-23 10:24:29 +02:00
dca
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2011-05-28 12:35:15 -07:00
edac edac,rcu: use synchronize_rcu() instead of call_rcu()+rcu_barrier() 2011-05-26 17:12:37 -07:00
eisa
firewire
firmware Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
gpio arm gpio drivers: make them 'depends on ARM' 2011-05-29 14:06:42 -07:00
gpu vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
hid Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2011-05-23 12:33:02 -07:00
hwmon hwmon: (coretemp) Fix section mismatch 2011-05-27 02:24:54 -07:00
hwspinlock
i2c mfd: Use mfd cell platform_data for timberdale cells platform bits 2011-05-26 19:45:05 +02:00
ide Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block 2011-05-25 09:14:07 -07:00
idle
ieee802154
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2011-05-26 12:13:57 -07:00
input input: Add support for Qualcomm PMIC8XXX power key 2011-05-26 19:45:54 +02:00
isdn Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
leds leds: Add ASIC3 LED support 2011-05-26 19:45:46 +02:00
lguest
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
mca
md dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2011-05-27 10:14:22 -07:00
memstick
message Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-05-23 09:12:26 -07:00
mfd mfd: Fix build breakage caused by tps65910 gpio directory move 2011-05-28 08:38:55 +02:00
misc kgdbts: unify/generalize gdb breakpoint adjustment 2011-05-26 17:12:36 -07:00
mmc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-27 19:51:32 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
net Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
nfc
nubus
of Merge branch 'devicetree/arm-next' of git://git.secretlab.ca/git/linux-2.6 into devel-stable 2011-05-25 00:08:17 +01:00
oprofile oprofile: Use linux/mutex.h 2011-05-24 12:45:59 +02:00
parisc
parport Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
pci Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-05-29 11:19:16 -07:00
pcmcia
platform Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 2011-05-29 11:44:33 -07:00
pnp
power Merge git://git.infradead.org/battery-2.6 2011-05-27 10:12:35 -07:00
pps
ps3
ptp ptp: Added a clock driver for the National Semiconductor PHYTER. 2011-05-23 13:10:23 -07:00
rapidio
regulator regulator: Do bulk enables of regulators in parallel 2011-05-30 11:56:57 +01:00
rtc drivers/rtc/rtc-mxc.c: remove defines already included in rtc.h 2011-05-26 17:12:33 -07:00
s390 [S390] irq: merge irq.c and s390_ext.c 2011-05-26 09:48:24 +02:00
sbus
scsi scsi: fix scsi_proc new kernel-doc warning 2011-05-28 23:12:11 -07:00
sfi
sh Merge branch 'sh/genirq-threading' into sh-latest 2011-05-23 11:36:14 +09:00
sn
spi spi/spi_bfin_sport: new driver for a SPI bus via the Blackfin SPORT peripheral 2011-05-27 01:23:54 -06:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2011-05-20 13:43:21 -07:00
staging Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
target [SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitions 2011-05-24 13:03:56 -04:00
tc
telephony
thermal
tty Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-27 19:51:32 -07:00
uio
usb Merge branch 'for-usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci 2011-05-28 12:36:15 -07:00
uwb
vhost
video drivers/video/mb862xx/mb862xxfbdrv.c needs uaccess.h 2011-05-26 17:12:32 -07:00
virtio
vlynq
w1 w1: add Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC support 2011-05-26 17:12:38 -07:00
watchdog mfd: Use mfd cell platform_data for rdc321x cells platform bits 2011-05-26 19:45:06 +02:00
xen Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
zorro
Kconfig ptp: Added a brand new class driver for ptp clocks. 2011-05-23 13:01:00 -07:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2011-05-28 12:35:15 -07:00