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Jean Delvare 0cd2c72d76 hwmon: (lm75) Tune resolution and sample time per chip 
Most LM75-compatible chips can either sample much faster or with a
much better resolution than the original LM75 chip. So far the lm75
driver did not let the user take benefit of these improvements. Do it
now.

I decided to almost always configure the chip to use the best
resolution possible, which also means the longest sample time. The
only chips for which I didn't are the DS75, DS1775 and STDS75, because
they are really too slow in 12-bit mode (1.2 to 1.5 second worst case)
so I went for 11-bit mode as a more reasonable tradeoff. This choice is
dictated by the fact that the hwmon subsystem is meant for system
monitoring, it has never been supposed to be ultra-fast, and as a
matter of fact we do cache the sampled values in almost all drivers.

If anyone isn't pleased with these default settings, they can always
introduce a platform data structure or DT support for the lm75. That
being said, it seems nobody ever complained that the driver wouldn't
refresh the value faster than every 1.5 second, and the change made
it faster for all chips even in 12-bit mode, so I don't expect any
complaint.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04 14:49:36 +02:00
..
accessibility
acpi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
amba
ata Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
atm
auxdisplay
base Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-05-01 13:20:04 -07:00
bcma
block Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
bus
cdrom
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-05-02 14:53:12 -07:00
clk ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
clocksource ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
connector
cpufreq
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2013-05-02 14:53:12 -07:00
dca
devfreq
dio
dma
edac Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 2013-04-30 10:00:49 -07:00
eisa
extcon
firewire
firmware Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
gpio ARM: arm-soc platform updates for 3.10, part 1 2013-05-02 09:31:45 -07:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-05-02 19:40:34 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-04-30 09:37:55 -07:00
hsi
hv Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:41:21 -07:00
hwmon hwmon: (lm75) Tune resolution and sample time per chip 2013-05-04 14:49:36 +02:00
hwspinlock
i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-05-02 14:38:53 -07:00
ide
idle
iio
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
iommu Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:40:35 -07:00
ipack
irqchip ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
isdn Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
leds
lguest Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
mailbox
md MD: ignore discard request for hard disks of hybid raid1/raid10 array 2013-04-30 14:49:36 +10:00
media Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-05-02 14:38:53 -07:00
memory
memstick drivers/memstick/host/r592.c: make r592_pm_ops static 2013-04-30 17:04:08 -07:00
message Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
mfd sound updates for v3.10-rc1 2013-05-03 09:10:23 -07:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
mmc ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
mtd ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
net Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-05-02 14:38:53 -07:00
nfc
ntb
nubus
of Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
oprofile
parisc
parport
pci Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
pcmcia
pinctrl Two fixes to the pinctrl subsystem for v3.10: 2013-05-02 14:42:46 -07:00
platform Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
pnp Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
power Highlights: 2013-04-30 15:15:24 -07:00
pps Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
ps3
ptp
pwm
rapidio
regulator
remoteproc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-04-30 09:36:50 -07:00
rpmsg Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
rtc ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
sbus
scsi Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
sfi
sh
sn
spi
ssb
ssbi
staging Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-05-02 14:38:53 -07:00
target Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
tc
thermal
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
uio
usb ARM: arm-soc cleanup for 3.10 2013-05-02 09:03:55 -07:00
uwb uwb: rename random32() to prandom_u32() 2013-04-29 18:28:43 -07:00
vfio vfio updates for v3.10 2013-05-02 14:02:32 -07:00
vhost Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
video Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-05-02 19:40:34 -07:00
virt
virtio
vlynq
vme
w1 drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave() 2013-04-30 17:04:08 -07:00
watchdog
xen zcache/tmem: Better error checking on frontswap_register_ops return value. 2013-04-30 17:04:01 -07:00
zorro proc: Supply PDE attribute setting accessor functions 2013-05-01 17:29:18 -04:00
Kconfig kconfig menu: move Virtualization drivers near other virtualization options 2013-04-30 17:04:09 -07:00
Makefile Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00