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Alexandre Belloni 188306ac95 rtc: pcf85363: set time accurately 
As per 8.2.6 Setting and reading the time in RTC mode, first stop the clok,
then reset it before setting the date and time registers. Finally, start
the clock.

This uses register address wrap around from 0x2f to 0x00 for efficiency.

This allows to set the clock with a millisecond accuracy (drift is not
corrected in this example):

RTC        System
1325388767 1325388767.000029180
1325388768 1325388768.000018362
1325388769 1325388769.000006544
1325388770 1325388769.999992725
1325388771 1325388770.999974544

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
 		2018-03-17 14:20:49 +01:00
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accessibility
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acpi vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
amba
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android vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ata pci-v4.16-changes 2018-02-06 09:59:40 -08:00
atm atm: he: use 64-bit arithmetic instead of 32-bit 2018-02-08 15:05:16 -05:00
auxdisplay
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base More power management updates for v4.16-rc1 2018-02-09 09:40:33 -08:00
bcma
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block Things have been very quiet on the rbd side, as work continues on the 2018-02-08 11:38:59 -08:00
bluetooth vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
bus
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cdrom
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char char: rtc: remove unused rtc_control() API 2018-03-01 10:49:37 +01:00
clk MIPS changes for 4.16 2018-02-07 11:22:44 -08:00
clocksource
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connector
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cpufreq arm: imx: Add MODULE_ALIAS for cpufreq 2018-02-08 10:21:39 +01:00
cpuidle powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
crypto KVM changes for 4.16 2018-02-10 13:16:35 -08:00
dax Merge branch 'for-4.16/dax' into libnvdimm-for-next 2018-02-03 00:26:10 -07:00
dca
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devfreq
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dio
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dma Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-02-02 09:50:51 -08:00
dma-buf vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
edac
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eisa
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extcon
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firewire vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
firmware 2nd set of arm64 updates for 4.16: 2018-02-08 10:44:25 -08:00
fmc
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fpga
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fsi
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gpio vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
gpu vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hid vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hsi vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hv vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hwmon
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hwspinlock
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hwtracing
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i2c Merge branch 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-02-04 10:57:43 -08:00
ide pci-v4.16-changes 2018-02-06 09:59:40 -08:00
idle
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iio vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
infiniband vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
input vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
iommu IOMMU Updates for Linux v4.16 2018-02-08 12:03:54 -08:00
ipack
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irqchip pci-v4.16-changes 2018-02-06 09:59:40 -08:00
isdn vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
leds vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
lightnvm
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macintosh vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
mailbox vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
mcb
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md vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
media vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
memory
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memstick
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message
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mfd vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
misc vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
mmc Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
mtd
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mux
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net vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
nfc
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ntb
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nubus
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nvdimm Merge branch 'for-4.16/nfit' into libnvdimm-for-next 2018-02-03 00:26:26 -07:00
nvme for-linus-20180204 2018-02-04 11:16:35 -08:00
nvmem
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of pci-v4.16-changes 2018-02-06 09:59:40 -08:00
opp
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oprofile
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parisc
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parport
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pci vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
pcmcia Merge branch 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia 2018-02-08 11:48:49 -08:00
perf bitmap: replace bitmap_{from,to}_u32array 2018-02-06 18:32:44 -08:00
phy
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pinctrl This is the bulk of pin control changes for the v4.16 kernel cycle: 2018-02-02 14:22:53 -08:00
platform vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
pnp
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power
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powercap
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pps vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ps3
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ptp vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
pwm
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rapidio vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ras
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regulator
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remoteproc remoteproc updates for v4.16 2018-02-05 10:07:40 -08:00
reset
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rpmsg vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
rtc rtc: pcf85363: set time accurately 2018-03-17 14:20:49 +01:00
s390 vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sbus pci-v4.16-changes 2018-02-06 09:59:40 -08:00
scsi vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sfi
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sh cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() 2018-02-08 10:21:39 +01:00
siox
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slimbus
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sn
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soc
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soundwire
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spi
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spmi
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ssb
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staging vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2018-02-09 14:49:46 -08:00
tc
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tee
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thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2018-02-06 15:04:58 -08:00
thunderbolt
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tty vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
uio vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
usb vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
uwb
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vfio vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
vhost vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
video Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
virt vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
virtio
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visorbus
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vlynq
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vme
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w1
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watchdog linux-watchdog 4.16-rc1 merge window tag 2018-02-07 11:54:34 -08:00
xen vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
zorro
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Kconfig
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Makefile pci-v4.16-changes 2018-02-06 09:59:40 -08:00