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Tzung-Bi Shih 56ab29ec6f pinctrl: mediatek: use spin lock in mtk_rmw 
Commit 42a46434e9b1 ("pinctrl: add lock in mtk_rmw function.") uses
mutex lock in mtk_rmw.  However the function is possible called from
atomic context.

For example call trace:
  mutex_lock+0x28/0x64
  mtk_rmw+0x38/0x80
  [snip]
  max98357a_daiops_trigger+0x8c/0x9c
  soc_pcm_trigger+0x5c/0x10c

The max98357a_daiops_trigger() could run in either atomic or non-atomic
context.  As a result, dmesg shows some similar messages: "BUG: sleeping
function called from invalid context at kernel/locking/mutex.c:254".

Uses spin lock in mtk_rmw instead.

Fixes: 42a46434e9b1 ("pinctrl: add lock in mtk_rmw function.")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210419093449.3125704-1-tzungbi@google.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-22 01:53:29 +02:00
..
accessibility
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
acpi
Additional ACPI updates for v5.12-rc1
2021-02-25 12:03:13 -08:00
amba
…
android
…
ata
…
atm
atm: idt77252: fix build broken on amd64
2021-02-15 12:36:27 -08:00
auxdisplay
treewide: Miguel has moved
2021-02-26 09:41:03 -08:00
base
PM: runtime: Update device status before letting suppliers suspend
2021-03-01 17:40:38 +01:00
bcma
…
block
rsxx: Return -EFAULT if copy_to_user() fails
2021-03-03 06:48:44 -07:00
bluetooth
TTY/Serial driver changes for 5.12-rc1
2021-02-20 21:28:04 -08:00
bus
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
cdrom
…
char
tpmdd updates for Linux v5.12-rc2
2021-03-04 12:51:57 -08:00
clk
RISC-V Patches for the 5.12 Merge Window
2021-02-26 10:28:35 -08:00
clocksource
A small set of clockevent fixes which fell through the cracks
2021-02-22 14:11:36 -08:00
connector
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counter
…
cpufreq
Simple Firmware Interface (SFI) support removal for v5.12-rc1
2021-02-24 10:35:29 -08:00
cpuidle
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crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2021-02-21 17:23:56 -08:00
cxl
cxl/mem: Fix potential memory leak
2021-02-22 14:44:39 -08:00
dax
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
dca
…
devfreq
Merge branches 'pm-devfreq' and 'pm-tools'
2021-02-15 17:02:04 +01:00
dio
…
dma
dmaengine updates for v5.12-rc1
2021-02-23 15:05:10 -08:00
dma-buf
dma-fence: allow signaling drivers to set fence timestamp
2021-02-24 21:05:28 +05:30
edac
Merge branch 'edac-misc' into edac-updates-for-v5.12
2021-02-15 10:06:58 +01:00
eisa
…
extcon
…
firewire
…
firmware
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
fpga
…
fsi
…
gnss
…
gpio
gpio: regmap: set gpio_chip of_node
2021-03-29 12:20:07 +02:00
gpu
Merge tag 'amd-drm-fixes-5.12-2021-03-03' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
2021-03-05 11:13:22 +10:00
greybus
…
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2021-02-23 14:52:22 -08:00
hsi
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hv
mm/memory_hotplug: MEMHP_MERGE_RESOURCE -> MHP_MERGE_RESOURCE
2021-02-26 09:41:00 -08:00
hwmon
Devicetree updates for v5.12:
2021-02-22 10:05:12 -08:00
hwspinlock
…
hwtracing
ARM updates for 5.12-rc1:
2021-02-22 14:27:07 -08:00
i2c
i2c: exynos5: Preserve high speed master code
2021-02-26 11:47:42 +01:00
i3c
I3C for 5.12
2021-02-22 09:52:55 -08:00
ide
ide-5.11-2021-02-28
2021-02-28 15:48:25 -08:00
idle
…
iio
- Use the newly introduced 'hot' and 'critical' ops for the acpi
2021-02-22 09:39:11 -08:00
infiniband
RDMA/rxe: Fix errant WARN_ONCE in rxe_completer()
2021-03-05 14:15:22 -04:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2021-02-23 14:56:23 -08:00
interconnect
…
iommu
IOMMU Fixes for Linux v5.12-rc1
2021-03-05 12:26:24 -08:00
ipack
…
irqchip
irqchip updates for Linux 5.12:
2021-02-15 15:41:56 +01:00
isdn
…
leds
Updates for 5.12-rc1. Besides usual fixes and new drivers, we are
2021-02-26 13:56:40 -08:00
lightnvm
lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid()
2021-02-14 21:27:24 -07:00
macintosh
…
mailbox
mailbox: arm_mhuv2: Skip calling kfree() with invalid pointer
2021-02-22 13:34:27 -06:00
mcb
…
md
Fix DM verity target's optional Forward Error Correction (FEC) for
2021-03-05 13:25:23 -08:00
media
Fixes around VM_FPNMAP and follow_pfn
2021-02-22 17:45:02 -08:00
memory
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
memstick
…
message
…
mfd
Simple Firmware Interface (SFI) support removal for v5.12-rc1
2021-02-24 10:35:29 -08:00
misc
pci-v5.12-changes
2021-02-25 09:56:08 -08:00
mmc
Merge branch 'stable/for-linus-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
2021-02-26 13:59:32 -08:00
most
…
mtd
This pull request contains changes (actually just fixes) for UBIFS
2021-02-21 13:57:08 -08:00
mux
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net
xen: branch for v5.12-rc2
2021-03-04 11:24:47 -08:00
nfc
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
ntb
NTB: Add support for EPF PCI Non-Transparent Bridge
2021-02-23 14:12:53 -06:00
nubus
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nvdimm
libnvdimm + device-dax for 5.12
2021-02-24 09:35:54 -08:00
nvme
nvmet: model_number must be immutable once set
2021-03-05 13:41:03 +01:00
nvmem
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of
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
opp
opp: Don't skip freq update for different frequency
2021-02-18 12:31:08 +05:30
parisc
…
parport
…
pci
pci-v5.12-changes
2021-02-25 09:56:08 -08:00
pcmcia
Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
2021-02-26 13:54:43 -08:00
perf
IOMMU Updates for Linux v5.12
2021-02-22 10:31:29 -08:00
phy
…
pinctrl
pinctrl: mediatek: use spin lock in mtk_rmw
2021-04-22 01:53:29 +02:00
platform
Additional ACPI updates for v5.12-rc1
2021-02-25 12:03:13 -08:00
pnp
…
power
…
powercap
powercap/drivers/dtpm: Add the experimental label to the option description
2021-03-01 17:43:29 +01:00
pps
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ps3
…
ptp
ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary
2021-02-17 13:49:26 -08:00
pwm
pwm: Changes for v5.12-rc1
2021-02-25 12:23:49 -08:00
rapidio
…
ras
…
regulator
- Core Frameworks
2021-02-22 09:29:42 -08:00
remoteproc
remoteproc: qcom: pas: Add SM8350 PAS remoteprocs
2021-02-11 12:52:18 -06:00
reset
RISC-V Patches for the 5.12 Merge Window
2021-02-26 10:28:35 -08:00
rpmsg
…
rtc
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
s390
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
sbus
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scsi
scsi: iscsi: Verify lengths on passthrough PDUs
2021-03-04 20:09:51 -05:00
sh
…
siox
…
slimbus
…
soc
OpenRISC updates for 5.12
2021-02-26 14:16:06 -08:00
soundwire
ALSA: hda: move Intel SoundWire ACPI scan to dedicated module
2021-03-02 15:33:00 +01:00
spi
powerpc updates for 5.12
2021-02-22 14:34:00 -08:00
spmi
spmi: spmi-pmic-arb: Fix hw_irq overflow
2021-02-12 12:26:46 +01:00
ssb
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staging
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
target
SCSI misc on 20210228
2021-02-28 11:51:20 -08:00
tc
…
tee
…
thermal
- Use the newly introduced 'hot' and 'critical' ops for the acpi
2021-02-22 09:39:11 -08:00
thunderbolt
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tty
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
uio
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usb
Kbuild updates for v5.12
2021-02-25 10:17:31 -08:00
vdpa
vdpa/mlx5: fix param validation in mlx5_vdpa_get_config()
2021-02-23 07:52:59 -05:00
vfio
VFIO updates for v5.12-rc1
2021-02-24 10:43:40 -08:00
vhost
virtio: features, fixes
2021-02-25 12:21:08 -08:00
video
drm fixes for 5.12-rc1 + msm-next
2021-02-25 12:10:22 -08:00
virt
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virtio
Merge branch 'akpm' (patches from Andrew)
2021-02-26 09:50:09 -08:00
visorbus
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vlynq
…
vme
…
w1
…
watchdog
Char/Misc driver patches for 5.12-rc1
2021-02-24 10:25:37 -08:00
xen
xen: branch for v5.12-rc1
2021-02-26 10:04:45 -08:00
zorro
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Kconfig
cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints
2021-02-16 20:36:38 -08:00
Makefile
Simple Firmware Interface (SFI) support removal for v5.12-rc1
2021-02-24 10:35:29 -08:00