Mark Brown e24a04c44c regulator: Implement WM831x BuckWise DC-DC convertor DVS support ... The BuckWise DC-DC convertors in WM831x devices support switching to a second output voltage using the logic level on one of the device pins. This is intended to allow rapid voltage switching for uses like cpufreq, replacing the I2C or SPI write used to configure the voltage of the regulator with a much faster GPIO status change. This is implemented by keeping the DVS voltage configured as the maximum voltage permitted for the regulator. If a request is made for the maximum voltage then the GPIO is used to switch to the DVS voltage, otherwise the normal ON voltage is updated and used. This follows the idiom used by most cpufreq drivers, which drop the minimum voltage as the core frequency is dropped but use a constant maximum - raising the voltage should normally be fast, but lowering it may be slower. Configuration of the DVS MFP on the device should be done externally, for example via OTP. Support is present in the hardware for monitoring the status of the transition using a second GPIO. This is not currently implemented but platform data is provided for it - the driver currently assumes that the device will be configured to transition immediately - but platform data is provided to reduce merge issues once it is. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>		2009-12-17 10:27:22 +00:00
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accessibility	…
acpi	Merge branch 'misc-2.6.33' into release	2009-12-16 14:22:32 -05:00
amba	…
ata	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
atm	drivers/atm: Correct code taking the size of a pointer	2009-12-13 19:56:33 -08:00
auxdisplay	…
base	Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6	2009-12-16 12:36:49 -08:00
block	Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block	2009-12-15 09:11:28 -08:00
bluetooth	USB: remove the auto_pm flag	2009-12-11 11:55:21 -08:00
cdrom	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2009-12-09 19:03:16 -08:00
char	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2009-12-16 12:33:19 -08:00
clocksource	cs5535: add a generic clock event MFGPT driver	2009-12-15 08:53:28 -08:00
connector	…
cpufreq	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
cpuidle	drivers/cpuidle: Move dereference after NULL test	2009-12-15 08:53:25 -08:00
crypto	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
dca	…
dio	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
dma	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2009-12-16 10:28:56 -08:00
edac	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp	2009-12-16 10:09:43 -08:00
eisa	…
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2009-12-11 15:22:27 -08:00
firmware	firmware: only allow EDD on x86	2009-12-15 08:53:34 -08:00
gpio	gpiolib: add support for changing value polarity in sysfs	2009-12-16 07:20:01 -08:00
gpu	Merge branch 'drm-vmware-staging' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-12-16 13:19:31 -08:00
hid	USB: remove the auto_pm flag	2009-12-11 11:55:21 -08:00
hwmon	lis3: scale output values to mg	2009-12-15 08:53:36 -08:00
i2c	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
ide	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
idle	…
ieee1394	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
ieee802154	…
infiniband	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2009-12-16 12:04:02 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2009-12-16 10:31:44 -08:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2009-12-14 12:33:02 -08:00
leds	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
lguest	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
macintosh	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2009-12-12 14:27:24 -08:00
mca	…
md	Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm	2009-12-15 09:12:01 -08:00
media	V4L/DVB (13698): pms: replace asm/uaccess.h to linux/uaccess.h	2009-12-16 09:28:01 -02:00
memstick	…
message	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
mfd	mfd: compile fix for twl4030 renaming	2009-12-15 09:33:36 -08:00
misc	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2009-12-16 12:33:19 -08:00
mmc	mmc: let tmio-mmc use dev_name() with request_irq()	2009-12-15 08:53:35 -08:00
mtd	Merge git://git.infradead.org/mtd-2.6	2009-12-16 10:23:43 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2009-12-16 10:33:18 -08:00
nubus	…
of	Merge commit 'origin/master' into next	2009-12-09 17:14:38 +11:00
oprofile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
parisc	parisc: Fixup last users of irq_chip->typename	2009-12-16 03:48:56 +00:00
parport	parport_pc.c: use correct length in strncmp	2009-12-16 07:20:12 -08:00
pci	Merge git://git.infradead.org/iommu-2.6	2009-12-16 10:11:38 -08:00
pcmcia	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
platform	Merge branch 'misc-2.6.33' into release	2009-12-16 14:22:32 -05:00
pnp	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2009-12-16 12:33:19 -08:00
power	Merge git://git.infradead.org/battery-2.6	2009-12-15 08:59:33 -08:00
pps	…
ps3	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
rapidio	…
regulator	regulator: Implement WM831x BuckWise DC-DC convertor DVS support	2009-12-17 10:27:22 +00:00
rtc	ARM: NUC900: add RTC driver support for nuc910 and nuc920	2009-12-16 07:20:00 -08:00
s390	tree-wide: convert open calls to remove spaces to skip_spaces() lib function	2009-12-15 08:53:32 -08:00
sbus	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
scsi	Subject: Re: [PATCH] strstrip incorrectly marked __must_check	2009-12-15 08:53:34 -08:00
serial	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2009-12-16 10:29:52 -08:00
sfi	…
sh	sh: pfc: Fixup type mismatch in debug printks.	2009-12-09 15:51:27 +09:00
sn	ioc3/ioc4: fix error path on driver registration	2009-12-15 08:53:27 -08:00
spi	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
ssb	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-05 15:22:26 -08:00
staging	Merge branch 'drm-vmware-staging' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-12-16 13:19:31 -08:00
tc	…
telephony	Merge branch 'for-next' into for-linus	2009-12-07 18:36:35 +01:00
thermal	Merge branch 'misc-2.6.33' into release	2009-12-16 14:22:32 -05:00
uio	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
usb	isp1362-hcd: use bitmap_find_next_zero_area	2009-12-16 07:20:18 -08:00
uwb	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
video	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2009-12-16 10:29:52 -08:00
virtio	…
vlynq	…
w1	…
watchdog	const: constify remaining dev_pm_ops	2009-12-15 08:53:25 -08:00
xen	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6	2009-12-11 12:18:16 -08:00
zorro	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
Kconfig	cs5535: add a generic clock event MFGPT driver	2009-12-15 08:53:28 -08:00
Makefile	…