redonkable/alistair23-linux
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Alexander Gordeev a10203c691 pps: add parallel port PPS client 
Add parallel port PPS client.  It uses a standard method for capturing
timestamps for assert edge transitions: getting a timestamp soon after an
interrupt has happened.

This is not a very precise source of time information due to interrupt
handling delays.  However, timestamps for clear edge transitions are much
more precise because the interrupt handler continuously polls hardware
port until the transition is done.

Hardware port operations require only about 1us so the maximum error
should not exceed this value.  This was my primary goal when developing
this client.

Clear edge capture could be disabled using clear_wait parameter.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13 08:03:21 -08:00
..
accessibility
acpi
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2011-01-10 08:22:33 -08:00
atm Madge Ambassador ATM Adapter driver: Always release_firmware() in ucode_init() and don't leak memory. 2011-01-09 15:45:48 -08:00
auxdisplay
base Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2011-01-10 16:10:33 -08:00
block Merge branch 'stable/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-12 08:37:35 -08:00
bluetooth
cdrom
char cs5535: deprecate older cs5535_gpio driver 2011-01-13 08:03:13 -08:00
clk
clocksource
connector
cpufreq
cpuidle
crypto
dca dca: remove unneeded NULL check 2011-01-13 08:03:09 -08:00
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-01-11 16:31:41 -08:00
edac
eisa
firewire
firmware
gpio gpio/ml_ioh_gpio: ML7213 GPIO driver 2011-01-13 08:03:14 -08:00
gpu drm/i915/execbuffer: Reorder binding of objects to favour restrictions 2011-01-11 22:55:48 +00:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2011-01-10 08:15:37 -08:00
hwmon hwmon: Support for Dallas Semiconductor DS620 2011-01-09 09:10:10 -08:00
i2c i2c: Constify i2c_client where possible 2011-01-10 22:11:23 +01:00
ide
idle
ieee802154
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2011-01-11 16:30:08 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2011-01-10 08:15:37 -08:00
isdn
leds leds: add output inversion option to backlight trigger 2011-01-13 08:03:06 -08:00
lguest
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-01-11 16:31:41 -08:00
mca
md
media
memstick
message
mfd mfd: sh_mobile_sdhi: activate SDIO IRQ for tmio_mmc 2011-01-08 23:52:31 -05:00
misc Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2011-01-10 08:57:03 -08:00
mmc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc 2011-01-11 11:01:24 -08:00
mtd kmsg_dump: constrain mtdoops and ramoops to perform their actions only for KMSG_DUMP_PANIC 2011-01-13 08:03:07 -08:00
net Merge branch 'stable/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-12 08:37:35 -08:00
nfc NFC: Driver for NXP Semiconductors PN544 NFC chip. 2011-01-13 08:03:19 -08:00
nubus
of Merge remote branch 'gcl/next' into next 2011-01-11 15:10:08 +11:00
oprofile
parisc
parport
pci Merge branch 'stable/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-12 08:37:35 -08:00
pcmcia
platform sony-laptop: support new hotkeys on the P, Z and EC series 2011-01-10 12:00:22 -05:00
pnp
power
pps pps: add parallel port PPS client 2011-01-13 08:03:21 -08:00
ps3
rapidio rapidio: add new idt sRIO switches 2011-01-13 08:03:18 -08:00
regulator
rtc rtc: rtc-max6902 - set driver data in max6902_probe() 2011-01-13 08:03:12 -08:00
s390 headers: kobject.h redux 2011-01-10 08:51:44 -08:00
sbus
scsi Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2011-01-10 08:22:33 -08:00
serial Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin 2011-01-10 17:06:08 -08:00
sfi
sh headers: kobject.h redux 2011-01-10 08:51:44 -08:00
sn
spi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 2011-01-10 08:14:53 -08:00
ssb
staging cs5535: deprecate older cs5535_gpio driver 2011-01-13 08:03:13 -08:00
tc
telephony drivers/telephony/ixj.c: fix warning 2011-01-13 08:03:15 -08:00
thermal
tty
uio
usb Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 2011-01-10 16:04:53 -08:00
uwb
vhost
video vgacon: check for efi machine 2011-01-13 08:03:12 -08:00
virtio
vlynq
w1
watchdog Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-01-11 11:02:13 -08:00
xen Merge branch 'stable/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2011-01-12 08:37:35 -08:00
zorro
Kconfig NFC: Driver for NXP Semiconductors PN544 NFC chip. 2011-01-13 08:03:19 -08:00
Makefile NFC: Driver for NXP Semiconductors PN544 NFC chip. 2011-01-13 08:03:19 -08:00