The interfaces that used to be built in only (interrupts IIRC) no longer
are so allow the driver to be built as a module fixing arm64 allmodconfig
builds.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

If vtg is NULL, it is not possible to access its mode_reg field. At all
sites where the static function menelaus_set_voltage is called, the first
argument is the address of a structure defined in the file. So, the null
test is unnecessary and is removed. Also, a label is done away with.

This problem was found using the following Coccinelle semantic match:

// <smpl>
@@
expression E, E1;
identifier f;
statement S1,S2,S3;
@@

* if (E == NULL)
{
  ... when != if (E == NULL) S1 else S2
      when != E = E1
* E->f
  ... when any
  return ...;
}
else S3
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

We'd like to be able to build the WM8994 family as modules, but the
build will fail if the external symbols aren't exported first.
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Suspicious implicit sign extension where 'reg' (unsigned char) is
promoted in reg << clksrc to int, then sign-extended to unsigned
long. If reg << clksrc is greater than 0x7FFFFFFF, the upper bits
of the result will all be 1.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

In the original code a return value variable was provided, but it
was never checked and the user was never informed of failure.  Now
it is and they are.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The return value of platform_device_add() is checked after every
other use throughout the kernel.

We're also sliding in another cheeky dev_err() => dev_warn() change
as we're not actually erroring out here, rather reporting the fact
that something's gone wrong, but carrying on regardless.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

As 'reg' is unsigned, it can't be less than 0, so checking if it is
greater than or equal to 0 will always result in a true condition.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Chip identifier wm5102_reva_patch is always overwritten with
wm5102_revb_patch, even when the code is run on a Rev-A chip.  Place
in the missing break to force the code into doing something sensible
instead.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Checking the result of container_of() against NULL will always result to
false.  Using the offset of member 'chip_out' to find the start of 'struct
htcpld_chip' will result in an offset error when .get_chip() is attempting
to obtain 'htcpld-in'.  Instead, we'll use the correct member based on a
previously the set chip label.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This aids in consistency, as the rest of the checks in the file use this
notation.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Logically dead code (DEADCODE)

dead_error_line: Execution cannot reach this statement: return;

Remove the check for NULL.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Calling strncpy with a maximum size argument of 32 bytes on destination
array kim_gdata->dev_name of size 32 bytes might leave the destination
string unterminated.

Cc: gregkh@linuxfoundation.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Coverity reported:
  This less-than-zero comparison of an unsigned value is never true.

In answer to that, we only ever decrement if protos_registered is
positive.  We can subsequently remove the paranoid checking during
unregister.

Cc: gregkh@linuxfoundation.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Value from st_sensors_set_drdy_int_pin() is assigned to err here,
but that stored value is not used before it is overwritten.  To fix
this we're enforcing a check on st_sensors_set_drdy_int_pin()'s
return value and if it's an error, we're returning right away.

Cc: jic23@kernel.org
Cc: linux-iio@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Merge branches 'ib-mfd-arm-3.18', 'ib-mfd-hwmon-leds-watchdog-3.18' and 'ib-mfd-power-charger-regulator-3.18' into ibs-for-mfd-merged

Added driver to support the 14F021P00 BMC Hardware Monitoring.
The BMC is a Board Management Controller including monitoring of the
board voltages.
Signed-off-by: Andreas Werner <andreas.werner@men.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Added driver to support the 14F021P00 BMC LEDs.
The BMC is a Board Management Controller including four LEDs which
can be switched on and off.
Signed-off-by: Andreas Werner <andreas.werner@men.de>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Added driver to support the 14F021P00 BMC Watchdog.
The BMC is a Board Management Controller including watchdog functionality.
Signed-off-by: Andreas Werner <andreas.werner@men.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Document the 'fast charge timer' setting exported by max14577 driver
through sysfs entry.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add document describing device tree bindings for MAX14577 MFD
drivers: MFD core, extcon, regulator and charger.

Both MAX14577 and MAX77836 chipsets are documented.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

MAX77836 has the same Fuel Gauge as MAX17040/17048. The max17040 driver
can be safely re-used. The patch adds MAX77836 device to the array of
i2c_device_id. Additionally it removes the id associated with MAX17040
device as the value is not used.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Remove hard-coded values for:
 - Fast Charge current,
 - End Of Charge current,
 - Fast Charge timer,
 - Overvoltage Protection Threshold,
 - Battery Constant Voltage,
and use DTS or sysfs to configure them. This allows using the max14577 charger
driver with different batteries.

Now the charger driver requires valid configuration data from DTS. In
case of wrong configuration data it fails during probe.

The fast charge timer is configured through sysfs entry.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch prepares for changing the max14577 charger driver to allow
configuring battery-dependent settings from DTS.

The patch moves from regulator driver to MFD core driver and exports:
 - function for calculating register value for charger's current;
 - table of limits for chargers (MAX14577, MAX77836).

Previously they were used only by the max14577 regulator driver. In next
patch the charger driver will use them as well. Exporting them will
reduce unnecessary code duplication.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add support for MAX77836 charger to the max14577 driver. The MAX77836
charger is almost the same as 14577 model except:
 - No dead-battery detection;
 - Support for special charger (like in MAX77693);
 - Support for DX over-voltage protection (like in MAX77693);
 - Lower values of charging current (two times lower current for
   slow/fast charge, much lower EOC current);
 - Slightly different values in ChgTyp field of STATUS2 register. On
   MAX14577 0x6 is reserved and 0x7 dead battery. On the MAX77836 the
   0x6 means special charger and 0x7 is reserved. Regardless of these
   differences the driver maps them to one enum max14577_muic_charger_type.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Add a "maxim,max14577-charger" of_compatible to the mfd_cell so the
MFD child device (the charger) will have its own of_node set. This will
be used by the max14577 charger driver in next patches to obtain battery
configuration from DTS.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Prepare for adding support for MAX77836 charger to the max14577 charger
driver by adding necessary new defines and prefixes to existing ones.

The MAX77836 uses slightly different values for ChgTyp field of STATUS2
register. On the MAX14577 value of 0x6 is reserved and 0x7 dead battery.
On the MAX77836 the opposite:
 - 0x6 means special charger,
 - 0x7 is reserved.
Regardless of these differences use one common enum
max14577_muic_charger_type.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>

The MEN 14F021P00 Board Management Controller provides an
I2C interface to the host to access the feature implemented in the BMC.
The BMC is a PIC Microntroller assembled on CPCI Card from MEN Mikroelektronik
and on a few Box/Display Computer.

Added MFD Core driver, supporting the I2C communication to the device.

The MFD driver currently supports the following features:
 	- Watchdog
 	- LEDs
	- Hwmon (voltage monitoring)
Signed-off-by: Andreas Werner <andreas.werner@men.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This patch series updates the device tree vendor prefix for
Dialog Semiconductor.

Various methods are currently used throughout the kernel: 'diasemi',
'dialog' and 'dlg'. Others have also been suggested.

This patch set aims to consolidate the usage of the vendor prefix to
use a common standard. The prefix 'dlg' is used.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Pull NFS client fixes from Trond Myklebust:
 "Highlights:

   - more fixes for read/write codepath regressions
     * sleeping while holding the inode lock
     * stricter enforcement of page contiguity when coalescing requests
     * fix up error handling in the page coalescing code

   - don't busy wait on SIGKILL in the file locking code"

* tag 'nfs-for-3.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: Don't busy-wait on SIGKILL in __nfs_iocounter_wait
  nfs: can_coalesce_requests must enforce contiguity
  nfs: disallow duplicate pages in pgio page vectors
  nfs: don't sleep with inode lock in lock_and_join_requests
  nfs: fix error handling in lock_and_join_requests
  nfs: use blocking page_group_lock in add_request
  nfs: fix nonblocking calls to nfs_page_group_lock
  nfs: change nfs_page_group_lock argument

Merge tag 'renesas-sh-drivers-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

Pull SH driver fix from Simon Horman:
 "Confine SH_INTC to platforms that need it"

* tag 'renesas-sh-drivers-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  sh: intc: Confine SH_INTC to platforms that need it

Pull MIPS fixes from Ralf Baechle:
 "Pretty much all across the field so with this we should be in
  reasonable shape for the upcoming -rc2"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: OCTEON: make get_system_type() thread-safe
  MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
  MIPS: Malta: EVA: Rename 'eva_entry' to 'platform_eva_init'
  MIPS: EVA: Add new EVA header
  MIPS: scall64-o32: Fix indirect syscall detection
  MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64
  MIPS: Loongson: Fix COP2 usage for preemptible kernel
  MIPS: NL: Fix nlm_xlp_defconfig build error
  MIPS: Remove race window in page fault handling
  MIPS: Malta: Improve system memory detection for '{e, }memsize' >= 2G
  MIPS: Alchemy: Fix db1200 PSC clock enablement
  MIPS: BCM47XX: Fix reboot problem on BCM4705/BCM4785
  MIPS: Remove duplicated include from numa.c
  MIPS: Add common plat_irq_dispatch declaration
  MIPS: MSP71xx: remove unused plat_irq_dispatch() argument
  MIPS: GIC: Remove useless parens from GICBIS().
  MIPS: perf: Mark pmu interupt IRQF_NO_THREAD

Merge tag 'trace-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull fix for ftrace function tracer/profiler conflict from Steven Rostedt:
 "The rewrite of the ftrace code that makes it possible to allow for
  separate trampolines had a design flaw with the interaction between
  the function and function_graph tracers.

  The main flaw was the simplification of the use of multiple tracers
  having the same filter (like function and function_graph, that use the
  set_ftrace_filter file to filter their code).  The design assumed that
  the two tracers could never run simultaneously as only one tracer can
  be used at a time.  The problem with this assumption was that the
  function profiler could be implemented on top of the function graph
  tracer, and the function profiler could run at the same time as the
  function tracer.  This caused the assumption to be broken and when
  ftrace detected this failed assumpiton it would spit out a nasty
  warning and shut itself down.

  Instead of using a single ftrace_ops that switches between the
  function and function_graph callbacks, the two tracers can again use
  their own ftrace_ops.  But instead of having a complex hierarchy of
  ftrace_ops, the filter fields are placed in its own structure and the
  ftrace_ops can carefully use the same filter.  This change took a bit
  to be able to allow for this and currently only the global_ops can
  share the same filter, but this new design can easily be modified to
  allow for any ftrace_ops to share its filter with another ftrace_ops.

  The first four patches deal with the change of allowing the ftrace_ops
  to share the filter (and this needs to go to 3.16 as well).

  The fifth patch fixes a bug that was also caused by the new changes
  but only for archs other than x86, and only if those archs implement a
  direct call to the function_graph tracer which they do not do yet but
  will in the future.  It does not need to go to stable, but needs to be
  fixed before the other archs update their code to allow direct calls
  to the function_graph trampoline"

* tag 'trace-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Use current addr when converting to nop in __ftrace_replace_code()
  ftrace: Fix function_profiler and function tracer together
  ftrace: Fix up trampoline accounting with looping on hash ops
  ftrace: Update all ftrace_ops for a ftrace_hash_ops update
  ftrace: Allow ftrace_ops to use the hashes from other ops

Pull x86 fixes from Ingo Molnar:
 "A couple of EFI fixes, plus misc fixes all around the map"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm64: Store Runtime Services revision
  firmware: Do not use WARN_ON(!spin_is_locked())
  x86_32, entry: Clean up sysenter_badsys declaration
  x86/doc: Fix the 'tlb_single_page_flush_ceiling' sysconfig path
  x86/mm: Fix sparse 'tlb_single_page_flush_ceiling' warning and make the variable read-mostly
  x86/mm: Fix RCU splat from new TLB tracepoints

Pull perf fixes from Ingo Molnar:
 "A kprobes and a perf compat ioctl fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Handle compat ioctl
  kprobes: Skip kretprobe hit in NMI context to avoid deadlock

Pull ARM SoC fixes from Olof Johansson:
 "A collection of fixes from this week, it's been pretty quiet and
  nothing really stands out as particularly noteworthy here -- mostly
  minor fixes across the field:

   - ODROID booting was fixed due to PMIC interrupts missing in DT
   - a collection of i.MX fixes
   - minor Tegra fix for regulators
   - Rockchip fix and addition of SoC-specific mailing list to make it
     easier to find posted patches"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  bus: arm-ccn: Fix warning message
  ARM: shmobile: koelsch: Remove non-existent i2c6 pinmux
  ARM: tegra: apalis/colibri t30: fix on-module 5v0 supplies
  MAINTAINERS: add new Rockchip SoC list
  ARM: dts: rockchip: readd missing mmc0 pinctrl settings
  ARM: dts: ODROID i2c improvements
  ARM: dts: Enable PMIC interrupts on ODROID
  ARM: dts: imx6sx: fix the pad setting for uart CTS_B
  ARM: dts: i.MX53: fix apparent bug in VPU clks
  ARM: imx: correct gpu2d_axi and gpu3d_axi clock setting
  ARM: dts: imx6: edmqmx6: change enet reset pin
  ARM: dts: vf610-twr: Fix pinctrl_esdhc1 pin definitions.
  ARM: imx: remove unnecessary ARCH_HAS_OPP select
  ARM: imx: fix TLB missing of IOMUXC base address during suspend
  ARM: imx6: fix SMP compilation again
  ARM: dt: sun6i: Add #address-cells and #size-cells to i2c controller nodes

Pull gpio fixes from Linus Walleij:

 - a largeish fix for the IRQ handling in the new Zynq driver.  The
   quite verbose commit message gives the exact details.
 - move some defines for gpiod flags outside an ifdef to make stub
   functions work again.
 - various minor fixes that we can accept for -rc1.

* tag 'gpio-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio-lynxpoint: enable input sensing in resume
  gpio: move GPIOD flags outside #ifdef
  gpio: delete unneeded test before of_node_put
  gpio: zynq: Fix IRQ handlers
  gpiolib: devres: use correct structure type name in sizeof
  MAINTAINERS: Change maintainer for gpio-bcm-kona.c

Pull drm fixes from Dave Airlie:
 "Intel and radeon fixes.

  Post KS/LC git requests from i915 and radeon stacked up.  They are all
  fixes along with some new pci ids for radeon, and one maintainers file
  entry.

   - i915: display fixes and irq fixes
   - radeon: pci ids, and misc gpuvm, dpm and hdp cache"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
  MAINTAINERS: Add entry for Renesas DRM drivers
  drm/radeon: add additional SI pci ids
  drm/radeon: add new bonaire pci ids
  drm/radeon: add new KV pci id
  Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe"
  drm/radeon: fix active_cu mask on SI and CIK after re-init (v3)
  drm/radeon: fix active cu count for SI and CIK
  drm/radeon: re-enable selective GPUVM flushing
  drm/radeon: Sync ME and PFP after CP semaphore waits v4
  drm/radeon: fix display handling in radeon_gpu_reset
  drm/radeon: fix pm handling in radeon_gpu_reset
  drm/radeon: Only flush HDP cache for indirect buffers from userspace
  drm/radeon: properly document reloc priority mask
  drm/i915: don't try to retrain a DP link on an inactive CRTC
  drm/i915: make sure VDD is turned off during system suspend
  drm/i915: cancel hotplug and dig_port work during suspend and unload
  drm/i915: fix HPD IRQ reenable work cancelation
  drm/i915: take display port power domain in DP HPD handler
  drm/i915: Don't try to enable cursor from setplane when crtc is disabled
  drm/i915: Skip load detect when intel_crtc->new_enable==true
  ...

As reported by Dan Aloni, commit f8567a38 ("aio: fix aio request
leak when events are reaped by userspace") introduces a regression when
user code attempts to perform io_submit() with more events than are
available in the ring buffer.  Reverting that commit would reintroduce a
regression when user space event reaping is used.

Fixing this bug is a bit more involved than the previous attempts to fix
this regression.  Since we do not have a single point at which we can
count events as being reaped by user space and io_getevents(), we have
to track event completion by looking at the number of events left in the
event ring.  So long as there are as many events in the ring buffer as
there have been completion events generate, we cannot call
put_reqs_available().  The code to check for this is now placed in
refill_reqs_available().

A test program from Dan and modified by me for verifying this bug is available
at http://www.kvack.org/~bcrl/20140824-aio_bug.c .
Reported-by: Dan Aloni <dan@kernelim.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Acked-by: Dan Aloni <dan@kernelim.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: stable@vger.kernel.org      # v3.16 and anything that f8567a38 was backported to
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

A message warning a user about wrong vc value was printing
out port instead.
Reported-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>