Nicolas Boichat 3cfe7a74d4 regmap: Use different lockdep class for each regmap init call ... Lockdep validator complains about recursive locking and deadlock when two different regmap instances are called in a nested order. That happens anytime a regmap read/write call needs to access another regmap. This is because, for performance reason, lockdep groups all locks initialized by the same mutex_init() in the same lock class. Therefore all regmap mutexes are in the same lock class, leading to lockdep "nested locking" warnings if a regmap accesses another regmap. In general, it is impossible to establish in advance the hierarchy of regmaps, so we make sure that each regmap init call initializes its own static lock_class_key. This is done by wrapping all regmap_init calls into macros. This also allows us to give meaningful names to the lock_class_key. For example, in rt5677 case, we have in /proc/lockdep_chains: irq_context: 0 [ffffffc0018d2198] &dev->mutex [ffffffc0018d2198] &dev->mutex [ffffffc001bd7f60] rt5677:5104:(&rt5677_regmap)->_lock [ffffffc001bd7f58] rt5677:5096:(&rt5677_regmap_physical)->_lock [ffffffc001b95448] &(&base->lock)->rlock The above would have resulted in a lockdep recursive warning previously. This is not the case anymore as the lockdep validator now clearly identifies the 2 regmaps as separate. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>		2015-08-07 14:50:59 +01:00
..
accessibility
acpi	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm	2015-07-11 20:44:31 -07:00
amba
android
ata	ata: ahci_platform: Add ACPI _CLS matching	2015-07-07 01:55:21 +02:00
atm
auxdisplay
base	regmap: Use different lockdep class for each regmap init call	2015-08-07 14:50:59 +01:00
bcma
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
bluetooth
bus	mfd: vexpress: Add parentheses around bridge->ops->regmap_init call	2015-08-07 14:50:59 +01:00
cdrom
char	Merge tag 'drm-intel-next-fixes-2015-07-02' of git://anongit.freedesktop.org/drm-intel	2015-07-02 14:36:40 -07:00
clk	A small set of fixes for problems found by smatch in new drivers	2015-07-11 11:08:21 -07:00
clocksource	clocksource/imx: Define clocksource for mx27	2015-07-07 10:44:45 +02:00
connector
cpufreq	MIPS, CPUFREQ: Fix spelling of Institute.	2015-07-07 20:59:42 +02:00
cpuidle	Replace module_platform_driver with builtin_platform driver in non modules.	2015-07-02 10:42:13 -07:00
crypto	crypto: marvell/cesa - another fix up for of_get_named_gen_pool() rename	2015-07-03 11:37:02 -07:00
dca
devfreq
dio
dma	Merge branch 'akpm' (patches from Andrew)	2015-07-01 17:47:51 -07:00
dma-buf
edac	A build fix for octeon_edac from Aaro Koskinen.	2015-07-03 12:10:12 -07:00
eisa
extcon
firewire
firmware	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2015-07-03 15:20:57 -07:00
fmc
gpio	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
gpu	Revert "drm/i915: Use crtc_state->active in primary check_plane func"	2015-07-12 15:00:20 -07:00
hid
hsi	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
hv
hwmon	hwmon: (w83627ehf) Use swap() in w82627ehf_swap_tempreg()	2015-07-03 14:39:06 +02:00
hwspinlock	hwspinlock: qcom: Correct msb in regmap_field	2015-07-01 16:15:05 +03:00
hwtracing/coresight
i2c	i2c: Mark instantiated device nodes with OF_POPULATE	2015-07-09 22:25:54 +02:00
ide	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
idle
iio
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-07-11 11:16:04 -07:00
iommu	IOMMU Fixes for Linux v4.2-rc0	2015-07-01 14:44:22 -07:00
ipack
irqchip	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-07-12 13:55:24 -07:00
isdn
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
lguest
macintosh
mailbox	Replace module_init with appropriate alternate initcall in non modules.	2015-07-02 10:36:29 -07:00
mcb
md	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
media	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
memory	Merge branch 'fixes-rc1' into omap-for-v4.2/fixes	2015-07-06 05:33:17 -07:00
memstick	memstick: remove deprecated use of pci api	2015-06-30 19:44:57 -07:00
message
mfd	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
misc	powerpc fixes for 4.2	2015-07-10 12:16:59 -07:00
mmc	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
mtd	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
net	A very significant modification to NTB in this series.	2015-07-04 14:07:47 -07:00
nfc	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
ntb	NTB: Add split BAR output for debugfs stats	2015-07-04 14:09:32 -04:00
nubus
nvdimm	nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails	2015-06-30 14:30:34 -04:00
of	Devicetree changes for v4.2	2015-07-01 19:40:18 -07:00
oprofile
parisc
parport
pci	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
pcmcia	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
phy	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-06-27 12:44:34 -07:00
pinctrl	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
platform	platform-drivers-x86 for 4.2-2	2015-07-05 10:54:09 -07:00
pnp	ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage	2015-07-06 23:52:21 +02:00
power	Replace module_platform_driver with builtin_platform driver in non modules.	2015-07-02 10:42:13 -07:00
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
remoteproc
reset
rpmsg
rtc	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-06-27 12:44:34 -07:00
s390	KVM: s390: virtio-ccw: don't overwrite config space values	2015-07-03 18:55:18 +02:00
sbus
scsi	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
sfi
sh	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
sn
soc	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
spi
spmi
ssb
staging	Staging driver patches for 4.2-rc1	2015-06-26 15:46:08 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
tc
thermal	thermal: sti: Add parentheses around bridge->ops->regmap_init call	2015-08-07 14:50:59 +01:00
thunderbolt
tty	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
uio
usb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
uwb
vfio	VFIO updates for v4.2	2015-06-28 12:32:13 -07:00
vhost	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
video	stifb: Implement hardware accelerated copyarea	2015-07-10 21:44:19 +02:00
virt
virtio	virtio/vhost: cross endian support	2015-07-03 16:02:25 -07:00
vlynq
vme
w1
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2015-07-01 19:33:16 -07:00
xen	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
zorro
Kconfig	libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support	2015-06-24 21:24:10 -04:00
Makefile	The libnvdimm sub-system introduces, in addition to the libnvdimm-core,	2015-06-29 10:34:42 -07:00