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61cddc57dc
kernel_optimize_test/drivers
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Lars-Peter Clausen 61cddc57dc regmap: Fix cache defaults initialization from raw cache defaults 
Currently registers with a value of 0 are ignored when initializing the register
defaults from raw defaults. This worked in the past, because registers without a
explicit default were assumed to have a default value of 0. This was changed in
commit b03622a8 ("regmap: Ensure rbtree syncs registers set to zero properly").
As a result registers, which have a raw default value of 0 are now assumed to
have no default. This again can result in unnecessary writes when syncing the
cache. It will also result in unnecessary reads for e.g. the first update
operation. In the case where readback is not possible this will even let the
update operation fail, if the register has not been written to before.

So this patch removes the check. Instead it adds a check to ignore raw defaults
for registers which are volatile, since those registers are not cached.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-02-15 08:31:32 -08:00
..
accessibility
acpi ACPI: remove duplicated lines of merging problems with acpi_processor_add 2012-02-07 14:31:35 -08:00
amba
ata [libata] ata_piix: Add Toshiba Satellite Pro A120 to the quirks list 2012-01-17 20:50:53 -05:00
atm
auxdisplay
base regmap: Fix cache defaults initialization from raw cache defaults 2012-02-15 08:31:32 -08:00
bcma bcma: connect the bcma bus suspend/resume to the bcma driver suspend/resume 2012-01-17 09:54:08 -05:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-02-02 15:47:33 -08:00
bluetooth
cdrom
char agp: fix scratch page cleanup 2012-01-26 18:36:48 +00:00
clk
clocksource
connector
cpufreq
cpuidle
crypto
dca
devfreq
dio
dma i.MX SDMA: Fix burstsize settings 2012-02-02 14:00:43 +05:30
edac
eisa
firewire firewire: ohci: disable MSI on Ricoh controllers 2012-01-30 21:33:34 +01:00
firmware
gpio gpio: Add missing spin_lock_init in gpio-ml-ioh driver 2012-02-01 21:59:37 -07:00
gpu drm/radeon/kms/blit: fix blit copy for very large buffers 2012-02-02 15:54:48 +00:00
hid HID: wiimote: fix invalid power_supply_powers call 2012-02-07 13:40:56 +01:00
hv
hwmon hwmon: (w83627ehf) Fix number of fans for NCT6776F 2012-02-04 18:08:23 -08:00
hwspinlock
i2c i2c: OMAP: Fix OMAP1 build error 2012-01-20 08:24:22 -08:00
ide
idle ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores 2012-01-19 21:26:32 -05:00
ieee802154
infiniband IB/srpt: Don't return freed pointer from srpt_alloc_ioctx_ring() 2012-02-06 08:57:11 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-02-04 10:57:42 -08:00
iommu iommu/msm: Fix error handling in msm_iommu_unmap() 2012-01-30 12:53:14 +01:00
isdn
leds drivers/leds/leds-lm3530.c: fix setting pltfm->als_vmax 2012-02-08 19:03:51 -08:00
lguest
macintosh
mca
md Some simple md-related fixes. 2012-02-08 19:06:30 -08:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-01-26 17:04:47 -08:00
memstick
message
mfd mfd: Avoid twl6040-codec PLL reconfiguration when not needed 2012-02-03 19:03:50 +01:00
misc lkdtm: avoid calling lkdtm_do_action() with spinlock held 2012-02-03 16:16:41 -08:00
mmc Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
mtd - Fix a regression in 16-bit Atmel NAND flash which was introduced in 3.1 2012-02-04 07:17:47 -08:00
net Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-01-27 20:40:18 -05:00
nfc
nubus
of
oprofile
parisc
parport
pci kernel-doc: fix new warnings in pci 2012-01-23 08:44:53 -08:00
pcmcia pcmcia: fix socket refcount decrementing on each resume 2012-02-08 19:03:51 -08:00
pinctrl pinctrl: add checks for empty function names 2012-01-26 14:13:11 +01:00
platform
pnp
power
pps
ps3
ptp
rapidio
regulator This fixes an integration issue with the regulator device tree bindings 2012-01-30 10:16:25 -08:00
rtc Revert "RTC: sa1100: remove redundant code of setting alarm" 2012-01-19 17:26:26 +00:00
s390 [S390] dasd: revalidate server for new pathgroup 2012-01-18 18:03:42 +01:00
sbus
scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k 2012-01-26 12:43:57 -08:00
sfi
sh
sn
spi spi-topcliff-pch: rename pch_spi_pcidev to pch_spi_pcidev_driver 2012-02-05 23:24:17 -07:00
ssb
staging staging: fix go7007-usb license 2012-02-01 18:29:33 -08:00
target target: Fix unsupported WRITE_SAME sense payload 2012-02-07 06:48:58 +00:00
tc
telephony
thermal thermal: Rename generate_netlink_event 2012-01-23 03:15:25 -05:00
tty drivers/tty/vt/vt_ioctl.c: fix KDFONTOP 32bit compatibility layer 2012-02-03 16:16:41 -08:00
uio
usb Here are a bunch of USB patches for 3.3-rc1. 2012-01-30 11:38:28 -08:00
uwb
vhost
video fbdev fixes for 3.3 2012-02-07 15:54:02 -08:00
virt
virtio virtio: correct the memory barrier in virtqueue_kick_prepare() 2012-01-28 08:10:23 +10:30
vlynq
w1
watchdog watchdog: iTCO_wdt: add Intel Lynx Point DeviceIDs 2012-01-27 10:01:16 +01:00
xen xen/granttable: Disable grant v2 for HVM domains. 2012-01-27 11:14:16 -05:00
zorro
Kconfig
Makefile