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Merge 3.10.85 into android-msm-bullhead-3.10-oreo-m5
Changes in 3.10.85: (90 commits)
ipr: Increase default adapter init stage change timeout
Disable write buffering on Toshiba ToPIC95
ALSA: hda - Add headset support to Acer Aspire V5
ALSA: hda - Fix the dock headphone output on Fujitsu Lifebook E780
ARC: add compiler barrier to LLSC based cmpxchg
arm64: Do not attempt to use init_mm in reset_context()
arm64: mm: Fix freeing of the wrong memmap entries with !SPARSEMEM_VMEMMAP
arm64: vdso: work-around broken ELF toolchains in Makefile
cpuidle / menu: Return (-1) if there are no suitable states
regmap: Fix regmap_bulk_read in BE mode
regulator: core: fix constraints output buffer
spi: pl022: Specify 'num-cs' property as required in devicetree binding
mtd: fix: avoid race condition when accessing mtd->usecount
mtd: dc21285: use raw spinlock functions for nw_gpio_lock
pinctrl: mvebu: armada-370: fix spi0 pin description
pinctrl: mvebu: armada-xp: remove non-existing NAND pins
pinctrl: mvebu: armada-xp: remove non-existing VDD cpu_pd functions
pinctrl: mvebu: armada-xp: fix functions of MPP48
Bluetooth: btusb: Fix memory leak in Intel setup routine
ath9k: fix DMA stop sequence for AR9003+
staging: rtl8712: prevent buffer overrun in recvbuf2recvframe
ext4: fix race between truncate and __ext4_journalled_writepage()
ext4: call sync_blockdev() before invalidate_bdev() in put_super()
ext4: don't retry file block mapping on bigalloc fs with non-extent file
ext4: fix reservation release on invalidatepage for delalloc fs
ext4: be more strict when migrating to non-extent based file
ext4: correctly migrate a file with a hole at the beginning
ext4: replace open coded nofail allocation in ext4_free_blocks()
jbd2: use GFP_NOFS in jbd2_cleanup_journal_tail()
jbd2: fix ocfs2 corrupt when updating journal superblock fails
i2c: at91: fix a race condition when using the DMA controller
iio: DAC: ad5624r_spi: fix bit shift of output data value
af9013: Don't accept invalid bandwidth
s5h1420: fix a buffer overflow when checking userspace params
cx24116: fix a buffer overflow when checking userspace params
ASoC: wm8737: Fixup setting VMID Impedance control register
ASoC: wm8955: Fix setting wrong register for WM8955_K_8_0_MASK bits
ASoC: wm8903: Fix define for WM8903_VMID_RES_250K
ASoC: wm8960: the enum of "DAC Polarity" should be wm8960_enum[1]
libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for HP 250GB SATA disk VB0250EAVER
libata: increase the timeout when setting transfer mode
usb: dwc3: gadget: return error if command sent to DGCMD register fails
usb: dwc3: gadget: return error if command sent to DEPCMD register fails
usb: dwc3: Reset the transfer resource index on SET_INTERFACE
USB: devio: fix a condition in async_completed()
USB: cp210x: add ID for Aruba Networks controllers
USB: option: add 2020:4000 ID
usb: xhci: Bugfix for NULL pointer deference in xhci_endpoint_init() function
dm btree remove: fix bug in redistribute3
dm btree: silence lockdep lock inversion in dm_btree_del()
mmc: block: Add missing mmc_blk_put() in power_ro_lock_show()
drm/qxl: Do not cause spice-server to clean our objects
drm/radeon: take the mode_config mutex when dealing with hpds (v2)
drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULL
drm: add a check for x/y in drm_mode_setcrtc
xfs: fix remote symlinks on V5/CRC filesystems
vTPM: set virtual device before passing to ibmvtpm_reset_crq
libata: add ATA_HORKAGE_NOTRIM
libata: force disable trim for SuperSSpeed S238
tracing/filter: Do not WARN on operand count going below zero
tracing/filter: Do not allow infix to exceed end of string
tracing: Have branch tracer use recursive field of task struct
dmaengine: mv_xor: bug fix for racing condition in descriptors cleanup
hwmon: (mcp3021) Fix broken output scaling
md: fix a build warning
Btrfs: use kmem_cache_free when freeing entry in inode cache
fuse: initialize fc->release before calling it
crush: fix a bug in tree bucket decode
ACPICA: Tables: Fix an issue that FACS initialization is performed twice
iscsi-target: Convert iscsi_thread_set usage to kthread.h
iser-target: Fix possible deadlock in RDMA_CM connection error
iser-target: release stale iser connections
mmc: card: Fixup request missing in mmc_blk_issue_rw_rq
__bitmap_parselist: fix bug in empty string handling
mac80211: prevent possible crypto tx tailroom corruption
USB: usbfs: allow URBs to be reaped after disconnection
watchdog: omap: assert the counter being stopped before reprogramming
NFS: Fix size of NFSACL SETACL operations
fixing infinite OPEN loop in 4.0 stateid recovery
nfs: increase size of EXCHANGE_ID name string buffer
SUNRPC: Fix a memory leak in the backchannel code
9p: forgetting to cancel request on interrupted zero-copy RPC
9p: don't leave a half-initialized inode sitting around
rbd: use GFP_NOIO in rbd_obj_request_create()
agp/intel: Fix typo in needs_ilk_vtd_wa()
hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
Fix firmware loader uevent buffer NULL pointer dereference
qla2xxx: Mark port lost when we receive an RSCN for it.
MIPS: KVM: Do not sign extend on unsigned MMIO load
Linux 3.10.85
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
drivers/usb/dwc3/gadget.c
After freeing pin from regulator_ena_gpio_free, loop can access
the pin. So this patch fixes not to access pin after freeing.
Change-Id: I07af3bb372af87c9f7587155edfb6e527e81d203
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Git-commit: 60a2362f769cf549dc466134efe71c8bf9fbaaba
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
commit a7068e3932eee8268c4ce4e080a338ee7b8a27bf upstream.
The buffer for condtraints debug isn't big enough to hold the output
in all cases. So fix this issue by increasing the buffer.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge commit 'v3.10.73' into LA.BF64.1.2.9
This merge brings us up to date with upstream kernel.org tag v3.10.73.
As part of the conflict resolution, changes introduced by commit 72684eae7
("arm64: Fix up /proc/cpuinfo") have been intentionally dropped, as they
conflict with Android changes msm-3.10 kernel to solve the problems
in a different way. Since userspace readers of this file may depend on
the existing msm-3.10 implementation, it's left as-is for now. The
commit may later be introduced if it is found to not impact userspaces
paired with this kernel.
* commit 'v3.10.73' (264 commits):
Linux 3.10.73
target: Allow Write Exclusive non-reservation holders to READ
target: Allow AllRegistrants to re-RESERVE existing reservation
target: Fix R_HOLDER bit usage for AllRegistrants
target/pscsi: Fix NULL pointer dereference in get_device_type
iscsi-target: Avoid early conn_logout_comp for iser connections
target: Fix reference leak in target_get_sess_cmd() error path
ARM: at91: pm: fix at91rm9200 standby
ipvs: rerouting to local clients is not needed anymore
ipvs: add missing ip_vs_pe_put in sync code
powerpc/smp: Wait until secondaries are active & online
x86/vdso: Fix the build on GCC5
x86/fpu: Drop_fpu() should not assume that tsk equals current
x86/fpu: Avoid math_state_restore() without used_math() in __restore_xstate_sig()
crypto: aesni - fix memory usage in GCM decryption
libsas: Fix Kernel Crash in smp_execute_task
xen-pciback: limit guest control of command register
nilfs2: fix deadlock of segment constructor during recovery
regulator: core: Fix enable GPIO reference counting
regulator: Only enable disabled regulators on resume
ALSA: hda - Treat stereo-to-mono mix properly
ALSA: hda - Add workaround for MacBook Air 5,2 built-in mic
ALSA: hda - Set single_adc_amp flag for CS420x codecs
ALSA: hda - Don't access stereo amps for mono channel widgets
ALSA: hda - Fix built-in mic on Compaq Presario CQ60
ALSA: control: Add sanity checks for user ctl id name string
spi: pl022: Fix race in giveback() leading to driver lock-up
tpm/ibmvtpm: Additional LE support for tpm_ibmvtpm_send
workqueue: fix hang involving racing cancel[_delayed]_work_sync()'s for PREEMPT_NONE
can: add missing initialisations in CAN related skbuffs
Change email address for 8250_pci
virtio_console: init work unconditionally
fuse: notify: don't move pages
fuse: set stolen page uptodate
drm/radeon: drop setting UPLL to sleep mode
drm/radeon: do a posting read in rs600_set_irq
drm/radeon: do a posting read in si_set_irq
drm/radeon: do a posting read in r600_set_irq
drm/radeon: do a posting read in r100_set_irq
drm/radeon: do a posting read in evergreen_set_irq
drm/radeon: fix DRM_IOCTL_RADEON_CS oops
tcp: make connect() mem charging friendly
net: compat: Update get_compat_msghdr() to match copy_msghdr_from_user() behaviour
tcp: fix tcp fin memory accounting
Revert "net: cx82310_eth: use common match macro"
rxrpc: bogus MSG_PEEK test in rxrpc_recvmsg()
caif: fix MSG_OOB test in caif_seqpkt_recvmsg()
inet_diag: fix possible overflow in inet_diag_dump_one_icsk()
rds: avoid potential stack overflow
net: sysctl_net_core: check SNDBUF and RCVBUF for min length
sparc64: Fix several bugs in memmove().
sparc: Touch NMI watchdog when walking cpus and calling printk
sparc: perf: Make counting mode actually work
sparc: perf: Remove redundant perf_pmu_{en|dis}able calls
sparc: semtimedop() unreachable due to comparison error
sparc32: destroy_context() and switch_mm() needs to disable interrupts.
Linux 3.10.72
ath5k: fix spontaneus AR5312 freezes
ACPI / video: Load the module even if ACPI is disabled
drm/radeon: fix 1 RB harvest config setup for TN/RL
Drivers: hv: vmbus: incorrect device name is printed when child device is unregistered
HID: fixup the conflicting keyboard mappings quirk
HID: input: fix confusion on conflicting mappings
staging: comedi: cb_pcidas64: fix incorrect AI range code handling
dm snapshot: fix a possible invalid memory access on unload
dm: fix a race condition in dm_get_md
dm io: reject unsupported DISCARD requests with EOPNOTSUPP
dm mirror: do not degrade the mirror on discard error
staging: comedi: comedi_compat32.c: fix COMEDI_CMD copy back
clk: sunxi: Support factor clocks with N factor starting not from 0
fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit.
nilfs2: fix potential memory overrun on inode
IB/qib: Do not write EEPROM
sg: fix read() error reporting
ALSA: hda - Add pin configs for ASUS mobo with IDT 92HD73XX codec
ALSA: pcm: Don't leave PREPARED state after draining
tty: fix up atime/mtime mess, take four
sunrpc: fix braino in ->poll()
procfs: fix race between symlink removals and traversals
debugfs: leave freeing a symlink body until inode eviction
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
USB: serial: fix potential use-after-free after failed probe
TTY: fix tty_wait_until_sent on 64-bit machines
USB: serial: fix infinite wait_until_sent timeout
net: irda: fix wait_until_sent poll timeout
xhci: fix reporting of 0-sized URBs in control endpoint
xhci: Allocate correct amount of scratchpad buffers
usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
USB: usbfs: don't leak kernel data in siginfo
USB: serial: cp210x: Adding Seletek device id's
KVM: MIPS: Fix trace event to save PC directly
KVM: emulate: fix CMPXCHG8B on 32-bit hosts
Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
Btrfs: fix data loss in the fast fsync path
btrfs: fix lost return value due to variable shadowing
iio: imu: adis16400: Fix sign extension
x86/asm/entry/64: Remove a bogus 'ret_from_fork' optimization
PM / QoS: remove duplicate call to pm_qos_update_target
target: Check for LBA + sectors wrap-around in sbc_parse_cdb
mm/memory.c: actually remap enough memory
mm/compaction: fix wrong order check in compact_finished()
mm/nommu.c: fix arithmetic overflow in __vm_enough_memory()
mm/mmap.c: fix arithmetic overflow in __vm_enough_memory()
mm/hugetlb: add migration entry check in __unmap_hugepage_range
team: don't traverse port list using rcu in team_set_mac_address
udp: only allow UFO for packets from SOCK_DGRAM sockets
usb: plusb: Add support for National Instruments host-to-host cable
macvtap: make sure neighbour code can push ethernet header
net: compat: Ignore MSG_CMSG_COMPAT in compat_sys_{send, recv}msg
team: fix possible null pointer dereference in team_handle_frame
net: reject creation of netdev names with colons
ematch: Fix auto-loading of ematch modules.
net: phy: Fix verification of EEE support in phy_init_eee
ipv4: ip_check_defrag should not assume that skb_network_offset is zero
ipv4: ip_check_defrag should correctly check return value of skb_copy_bits
gen_stats.c: Duplicate xstats buffer for later use
rtnetlink: call ->dellink on failure when ->newlink exists
ipv6: fix ipv6_cow_metrics for non DST_HOST case
rtnetlink: ifla_vf_policy: fix misuses of NLA_BINARY
Linux 3.10.71
libceph: fix double __remove_osd() problem
libceph: change from BUG to WARN for __remove_osd() asserts
libceph: assert both regular and lingering lists in __remove_osd()
MIPS: Export FP functions used by lose_fpu(1) for KVM
x86, mm/ASLR: Fix stack randomization on 64-bit systems
blk-throttle: check stats_cpu before reading it from sysfs
jffs2: fix handling of corrupted summary length
md/raid1: fix read balance when a drive is write-mostly.
md/raid5: Fix livelock when array is both resyncing and degraded.
metag: Fix KSTK_EIP() and KSTK_ESP() macros
gpio: tps65912: fix wrong container_of arguments
arm64: compat Fix siginfo_t -> compat_siginfo_t conversion on big endian
hx4700: regulator: declare full constraints
KVM: x86: update masterclock values on TSC writes
KVM: MIPS: Don't leak FPU/DSP to guest
ARC: fix page address calculation if PAGE_OFFSET != LINUX_LINK_BASE
ntp: Fixup adjtimex freq validation on 32-bit systems
kdb: fix incorrect counts in KDB summary command output
ARM: pxa: add regulator_has_full_constraints to poodle board file
ARM: pxa: add regulator_has_full_constraints to corgi board file
vt: provide notifications on selection changes
usb: core: buffer: smallest buffer should start at ARCH_DMA_MINALIGN
USB: fix use-after-free bug in usb_hcd_unlink_urb()
USB: cp210x: add ID for RUGGEDCOM USB Serial Console
tty: Prevent untrappable signals from malicious program
axonram: Fix bug in direct_access
cfq-iosched: fix incorrect filing of rt async cfqq
cfq-iosched: handle failure of cfq group allocation
iscsi-target: Drop problematic active_ts_list usage
NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
Added Little Endian support to vtpm module
tpm/tpm_i2c_stm_st33: Fix potential bug in tpm_stm_i2c_send
tpm: Fix NULL return in tpm_ibmvtpm_get_desired_dma
tpm_tis: verify interrupt during init
ARM: 8284/1: sa1100: clear RCSR_SMR on resume
tracing: Fix unmapping loop in tracing_mark_write
MIPS: KVM: Deliver guest interrupts after local_irq_disable()
nfs: don't call blocking operations while !TASK_RUNNING
mmc: sdhci-pxav3: fix setting of pdata->clk_delay_cycles
power_supply: 88pm860x: Fix leaked power supply on probe fail
ALSA: hdspm - Constrain periods to 2 on older cards
ALSA: off by one bug in snd_riptide_joystick_probe()
lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3 in interrupt urb
cpufreq: speedstep-smi: enable interrupts when waiting
PCI: Fix infinite loop with ROM image of size 0
PCI: Generate uppercase hex for modalias var in uevent
HID: i2c-hid: Limit reads to wMaxInputLength bytes for input events
iwlwifi: mvm: always use mac color zero
iwlwifi: mvm: fix failure path when power_update fails in add_interface
iwlwifi: mvm: validate tid and sta_id in ba_notif
iwlwifi: pcie: disable the SCD_BASE_ADDR when we resume from WoWLAN
fsnotify: fix handling of renames in audit
xfs: set superblock buffer type correctly
xfs: inode unlink does not set AGI buffer type
xfs: ensure buffer types are set correctly
Bluetooth: ath3k: workaround the compatibility issue with xHCI controller
Linux 3.10.70
rbd: drop an unsafe assertion
media/rc: Send sync space information on the lirc device
net: sctp: fix passing wrong parameter header to param_type2af in sctp_process_param
ppp: deflate: never return len larger than output buffer
ipv4: tcp: get rid of ugly unicast_sock
tcp: ipv4: initialize unicast_sock sk_pacing_rate
bridge: dont send notification when skb->len == 0 in rtnl_bridge_notify
ipv6: replacing a rt6_info needs to purge possible propagated rt6_infos too
ping: Fix race in free in receive path
udp_diag: Fix socket skipping within chain
ipv4: try to cache dst_entries which would cause a redirect
net: sctp: fix slab corruption from use after free on INIT collisions
netxen: fix netxen_nic_poll() logic
ipv6: stop sending PTB packets for MTU < 1280
net: rps: fix cpu unplug
ip: zero sockaddr returned on error queue
Linux 3.10.69
crypto: crc32c - add missing crypto module alias
x86,kvm,vmx: Preserve CR4 across VM entry
kvm: vmx: handle invvpid vm exit gracefully
smpboot: Add missing get_online_cpus() in smpboot_register_percpu_thread()
ALSA: ak411x: Fix stall in work callback
ASoC: sgtl5000: add delay before first I2C access
ASoC: atmel_ssc_dai: fix start event for I2S mode
lib/checksum.c: fix build for generic csum_tcpudp_nofold
ext4: prevent bugon on race between write/fcntl
arm64: Fix up /proc/cpuinfo
nilfs2: fix deadlock of segment constructor over I_SYNC flag
lib/checksum.c: fix carry in csum_tcpudp_nofold
mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range
MIPS: Fix kernel lockup or crash after CPU offline/online
MIPS: IRQ: Fix disable_irq on CPU IRQs
PCI: Add NEC variants to Stratus ftServer PCIe DMI check
gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low
gpio: sysfs: fix memory leak in gpiod_export_link
Linux 3.10.68
target: Drop arbitrary maximum I/O size limit
iser-target: Fix implicit termination of connections
iser-target: Handle ADDR_CHANGE event for listener cm_id
iser-target: Fix connected_handler + teardown flow race
iser-target: Parallelize CM connection establishment
iser-target: Fix flush + disconnect completion handling
iscsi,iser-target: Initiate termination only once
vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion
tcm_loop: Fix wrong I_T nexus association
vhost-scsi: Take configfs group dependency during VHOST_SCSI_SET_ENDPOINT
ib_isert: Add max_send_sge=2 minimum for control PDU responses
IB/isert: Adjust CQ size to HW limits
workqueue: fix subtle pool management issue which can stall whole worker_pool
gpio: squelch a compiler warning
efi-pstore: Make efi-pstore return a unique id
pstore/ram: avoid atomic accesses for ioremapped regions
pstore: Fix NULL pointer fault if get NULL prz in ramoops_get_next_prz
pstore: skip zero size persistent ram buffer in traverse
pstore: clarify clearing of _read_cnt in ramoops_context
pstore: d_alloc_name() doesn't return an ERR_PTR
pstore: Fail to unlink if a driver has not defined pstore_erase
ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE
ARM: 8108/1: mm: Introduce {pte,pmd}_isset and {pte,pmd}_isclear
ARM: DMA: ensure that old section mappings are flushed from the TLB
ARM: 7931/1: Correct virt_addr_valid
ARM: fix asm/memory.h build error
ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg().
ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within atomic.h
ARM: lpae: fix definition of PTE_HWTABLE_PTRS
ARM: fix type of PHYS_PFN_OFFSET to unsigned long
ARM: LPAE: use phys_addr_t in alloc_init_pud()
ARM: LPAE: use signed arithmetic for mask definitions
ARM: mm: correct pte_same behaviour for LPAE.
ARM: 7829/1: Add ".text.unlikely" and ".text.hot" to arm unwind tables
drivers: net: cpsw: discard dual emac default vlan configuration
regulator: core: fix race condition in regulator_put()
spi/pxa2xx: Clear cur_chip pointer before starting next message
dm cache: fix missing ERR_PTR returns and handling
dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode
nl80211: fix per-station group key get/del and memory leak
NFSv4.1: Fix an Oops in nfs41_walk_client_list
nfs: fix dio deadlock when O_DIRECT flag is flipped
Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
ALSA: seq-dummy: remove deadlock-causing events on close
powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
can: kvaser_usb: Fix state handling upon BUS_ERROR events
can: kvaser_usb: Retry the first bulk transfer on -ETIMEDOUT
can: kvaser_usb: Send correct context to URB completion
can: kvaser_usb: Do not sleep in atomic context
ASoC: wm8960: Fix capture sample rate from 11250 to 11025
spi: dw-mid: fix FIFO size
Signed-off-by: Ian Maund <imaund@codeaurora.org>
commit 29d62ec5f87fbeec8413e2215ddad12e7f972e4c upstream.
Normally _regulator_do_enable() isn't called on an already-enabled
rdev. That's because the main caller, _regulator_enable() always
calls _regulator_is_enabled() and only calls _regulator_do_enable() if
the rdev was not already enabled.
However, there is one caller of _regulator_do_enable() that doesn't
check: regulator_suspend_finish(). While we might want to make
regulator_suspend_finish() behave more like _regulator_enable(), it's
probably also a good idea to make _regulator_do_enable() robust if it
is called on an already enabled rdev.
At the moment, _regulator_do_enable() is _not_ robust for already
enabled rdevs if we're using an ena_pin. Each time
_regulator_do_enable() is called for an rdev using an ena_pin the
reference count of the ena_pin is incremented even if the rdev was
already enabled. This is not as intended because the ena_pin is for
something else: for keeping track of how many active rdevs there are
sharing the same ena_pin.
Here's how the reference counting works here:
* Each time _regulator_enable() is called we increment
rdev->use_count, so _regulator_enable() calls need to be balanced
with _regulator_disable() calls.
* There is no explicit reference counting in _regulator_do_enable()
which is normally just a warapper around rdev->desc->ops->enable()
with code for supporting delays. It's not expected that the
"ops->enable()" call do reference counting.
* Since regulator_ena_gpio_ctrl() does have reference counting
(handling the sharing of the pin amongst multiple rdevs), we
shouldn't call it if the current rdev is already enabled.
Note that as part of this we cleanup (remove) the initting of
ena_gpio_state in regulator_register(). In _regulator_do_enable(),
_regulator_do_disable() and _regulator_is_enabled() is is clear that
ena_gpio_state should be the state of whether this particular rdev has
requested the GPIO be enabled. regulator_register() was initting it
as the actual state of the pin.
Fixes: 967cfb18c0 ("regulator: core: manage enable GPIO list")
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 0548bf4f5ad6fc3bd93c4940fa48078b34609682 upstream.
The _regulator_do_enable() call ought to be a no-op when called on an
already-enabled regulator. However, as an optimization
_regulator_enable() doesn't call _regulator_do_enable() on an already
enabled regulator. That means we never test the case of calling
_regulator_do_enable() during normal usage and there may be hidden
bugs or warnings. We have seen warnings issued by the tps65090 driver
and bugs when using the GPIO enable pin.
Let's match the same optimization that _regulator_enable() in
regulator_suspend_finish(). That may speed up suspend/resume and also
avoids exposing hidden bugs.
[Use much clearer commit message from Doug Anderson]
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 83b0302d347a49f951e904184afe57ac3723476e upstream.
The regulator framework maintains a list of consumer regulators
for a regulator device and protects it from concurrent access using
the regulator device's mutex lock.
In the case of regulator_put() the consumer is removed and regulator
device's parameters are updated without holding the regulator device's
mutex. This would lead to a race condition between the regulator_put()
and any function which traverses the consumer list or modifies regulator
device's parameters.
Fix this race condition by holding the regulator device's mutex in case
of regulator_put.
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The regulator framework maintains a list of consumer regulators
for a regulator device and protects it from concurrent access
using the regulator device's mutex lock.
In the case of regulator_put() the consumer is removed and regulator
device's parameters are updated without holding the regulator device's
mutex. This would lead to a race condition between the regulator_put()
and any function which traverses the consumer list or modifies regulator
device's parameters.
Fix this race condition by holding the regulator device's mutex in case
of regulator_put.
CRs-Fixed: 775204
Change-Id: I0abbdca40aeba6d07a0d41f65bf02de00c3f2bf6
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Add a notifier event which is triggered when a regulator is
enabled. This can be used by a driver which must configure the
hardware state whenever a given supply is enabled even if some
other consumer was responsible for enabling the supply.
Change-Id: Ic8363308b64953451dd01756e1bfdc2a64527096
Signed-off-by: David Collins <collinsd@codeaurora.org>
commit 66fda75f47dc583f1c187556e9a2c082dd64f8c6 upstream.
There are many places where ops->disable is called directly. Instead we
should use _regulator_do_disable() which also handles gpio regulators.
To be able to use the wrapper function from _regulator_force_disable(),
I moved the _notifier_call_chain() call from _regulator_do_disable() to
_regulator_disable(). This way, _regulator_force_disable() can use
different flags for _notifier_call_chain() without calling it twice.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 30c219710358c5cca2f8bd2e9e547c6aadf7cf8b upstream.
There are some direct ops->enable in the regulator core driver. This is
a potential issue as the function _regulator_do_enable() handles gpio
regulators and the normal ops->enable calls. These gpio regulators are
simply ignored when ops->enable is called directly.
One possible bug is that boot-on and always-on gpio regulators are not
enabled on registration.
This patch replaces all ops->enable calls by _regulator_do_enable.
[Handle missing enable operations -- broonie]
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit b2296bd43e.
The change results in the following incorrect behavior.
If a given regulator has a parent supply and the regulator is
enabled either before or during regulator_register(), then
regulator_enable() is called on the supply. Unfortunately, there
is no matching regulator_disable() call. This means that the
parent supply will stay enabled forever even if the child is
disabled later.
The stated goal of the change was to enable the parent of a
regulator which was enabled based on its machine constraints.
However, the only constraints that leads to enable() being called
for a regulator are boot-on or always-on. If these have been
specified for a child regulator then they should have also been
specified for its parent regulator. Therefore, there should be
no need to explicitly enable the parent when the child is
registered.
Change-Id: Ib8e6db65dcd44c27ef99509ff0cfd2f8e16e9f65
CRs-Fixed: 540315
Signed-off-by: David Collins <collinsd@codeaurora.org>
Add a call to regulator_proxy_consumer_register() at the end of
regulator_register() and a call to
regulator_proxy_consumer_unregister() at the beginning of
regulator_unregister(). These calls ensure that proxy consumer
features may be used by any type of regulator regardless of the
driver supporting it.
Change-Id: Ia70da1df47042fa673c42f389136557f868d19a3
Signed-off-by: David Collins <collinsd@codeaurora.org>
Move regulator debugfs functions into core.c. This change allows the user
to read and edit regulator information in user space through the debugfs
file system.
Change-Id: I21fa2c1d5d4ab27871ebb543134c2cee5ad70ded
Signed-off-by: Brandon Leong <bleong@codeaurora.org>
With this patch the regulator core aggregates voltage requests and
applies the minimum voltage range that satisifies all consumers of
a shared regulator supply. Only the voltages of consumers that have
enabled the supply are aggregated.
Updated voltage ranges are applied to the corresponding driver upon
the following events:
1. A consumer that has already enabled the regulator sets a voltage
2. A consumer enables the regulator
3. A consumer disables the regulator
Change-Id: Ib5012886cb77185a2038d45f08f3758faff68f60
Signed-off-by: David Collins <collinsd@codeaurora.org>
The regulator framework checks if the current mode is the same as the
one being requested inside of regulator_set_mode. However, when
DRMS changing is allowed, regulator_enable calls drms_uA_update.
This function does not check the value of get_mode before calling
set_mode.
Modify drms_uA_update so that set_mode is only called if the requested
mode is different from the current mode returned by get_mode.
Change-Id: Ifb4f3069cf946e8474565ee82508c1ff45b36543
Signed-off-by: David Collins <collinsd@codeaurora.org>
Add a convenience API to set the voltage on multiple consumers
stored in a struct regulator_bulk_data[] in one API call.
Change-Id: Iaeb5ba8c357a66f1401fb1e142bb03904e8e9c7c
Signed-off-by: Justin Paupore <jpaupore@codeaurora.org>
Each call to regulator_register() results in a line being written
into the kmsg log. regulator_init_complete() also prints a line for
each unused regulator which is automatically disabled.
Add a function named regulator_suppress_info_printing() which can
be called to disable these print statements.
Change-Id: Ic4c723b7d02a494b4e261858d699d9625da715ea
Signed-off-by: David Collins <collinsd@codeaurora.org>
Errors returned from regulator_check_drms() are not treated as fatal
by any of its callers, nor are they passed up through exported
regulator APIs. Instead, these errors are used to indicate that a
regulator does not support multiple current modes.
For example, the exported regulator_set_optimum_mode() API explicitly
discards errors from regulator_check_drms() and returns success anyway
since there is no work to be done to change modes.
To prevent errors from being printed in these cases, downgrade the
rdev_err() prints in regulator_check_drms() to rdev_dbg() prints.
Change-Id: I465dcad59722b0f1fb9384beba01f6411a4a693a
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Add a couple kernel-doc lines to get rid of kernel-doc generation
warnings, no functional change.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
A lot of regulator hardware has ascendant voltage list.
This patch adds regulator_map_voltage_ascend() and export it.
Drivers that have ascendant voltage list can use this as their map_voltage()
operation, this is more efficient than default regulator_map_voltage_iterate()
function.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
commit 6d191a5fc7
(regulator: core: Don't defer probe if there's no DT binding for a supply)
Attempted to differentiate between regulator_get() with an actual
DT binding for the supply and when there is none to avoid unnecessary
deferal.
However, ret value supplied by regulator_dev_lookup() is being
ignored by regulator_get(). So, exit with the appropriate return value.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Regulator drivers may specify regulator_desc->supply_name which
regulator_register() will use to find the supply node for a regulator.
If no supply was specified in the device tree or the supply has yet
to be registered regulator_register() will fail, deferring the probe
of the regulator. In the case where no supply node was specified in the
device tree, there is no supply and it is pointless to try and find one
later, so go ahead and add the regulator without the supply.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The regulator_dev has regulator_enable_gpio structure.
'ena_gpio' and 'ena_gpio_invert' were moved to in regulator_enable_gpio.
regulator_dev ---> regulator_enable_gpio
.ena_gpio .gpio
.ena_gpio_invert .ena_gpio_invert
Pointer, 'ena_pin' is used for checking valid enable GPIO pin.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
To support shared enable GPIO pin, replace GPIO code with new static functions
Reference count: 'enable_count'
Balance the reference count of each GPIO and actual pin control.
The count is incremented with enabling GPIO.
On the other hand, it is decremented on disabling GPIO.
Actual GPIO pin is enabled at the initial use.(enable_count = 0)
The pin is disabled if it is not used(shared) any more. (enable_count <=1)
Regardless of the enable count, update GPIO state of the regulator.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
A Regulator can be enabled by external GPIO pin.
This is configurable in the regulator_config.
At this moment, the GPIO can be owned by only one regulator device.
In some devices, multiple regulators are enabled by shared one GPIO pin.
This patch extends this limitation, enabling shared enable GPIO of regulators.
New list for enable GPIO: 'regulator_ena_gpio_list'
This manages enable GPIO list.
New structure for supporting shared enable GPIO: 'regulator_enable_gpio'
The enable count is used for balancing GPIO control count.
This count is incremented when GPIO is enabled.
On the other hand, it's decremented when GPIO is disabled.
Reference count: 'request_count'
The reference count, 'request_count' is incremented/decremented on
requesting/freeing the GPIO. This count makes sure only free the GPIO
when it has no users.
How it works
If the GPIO is already used, skip requesting new GPIO usage.
The GPIO is new one, request GPIO function and add it to the list of
enable GPIO.
This list is used for balancing enable GPIO count and pin control.
Updating a GPIO and invert code moved
'ena_gpio' and 'ena_gpio_invert' of the regulator_config were moved to
new function, regulator_ena_gpio_request().
Use regulator_enable_pin structure rather than regulator_dev.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Unwinding code disables all successfully enabled regulators.
Error is logged for every failed regulator.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
commit f59c8f9f (regulator: core: Support bypass mode)
has a short documentation error around the regulator_allow_bypass
parameter 'enable' which is documented as 'allow'.
This generates kernel-doc warning as follows:
./scripts/kernel-doc drivers/regulator/core.c >/dev/null
Warning(drivers/regulator/core.c:2841): No description found for parameter 'enable'
Warning(drivers/regulator/core.c:2841): Excess function parameter 'allow' description in 'regulator_allow_bypass'
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
commit dd8004af: 'regulator: core: Log when a device causes a voltage
constraint fail', tried to print out some information about the
check consumer min/max uV fixup, however, it uses a garbage pointer
left over from list_for_each_entry leading to boot messages in the
form:
'[ 2.079890] <RANDOM ASCII>: Restricting voltage, 3735899821-4294967295uV'
Because it references regulator->dev, it could potentially read memory from
anywhere causing a panic.
This patch instead uses rdev and the updated min/max uV values.
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Optimize _regulator_do_set_voltage() for the case selector is equal to
old_selector. Since the voltage does not change, we don't need to call
set_voltage_sel() and set_voltage_time_sel() in this case.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
regulator_register() does not return 0 on success, fix the comment.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Some DVM regulators needs to update apply_bit after setting vsel_reg to
initiate voltage change on the output. This patch adds apply_reg and
apply_bit to struct regulator_desc and update
regulator_set_voltage_sel_regmap() to set apply_bit of apply_reg when
apply_bit is set.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Nathan Chancellor