This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch add device managed devm_extcon_dev_{allocate,free} to automatically
free the memory of extcon_dev structure without handling free operation.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

This patch add APIs to control the extcon device on extcon provider driver.
The extcon_dev_allocate() allocates the memory of extcon device and initializes
supported cables. And then extcon_dev_free() decrement the reference of the
device of extcon device and free the memory of the extcon device. This APIs
must need to implement devm_extcon_dev_allocate()/free() APIs.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Add resource-managed extcon device register function for convenience.
For example, if a extcon device is attached with new
devm_extcon_dev_register(), that extcon device is automatically
unregistered on driver detach.
Signed-off-by: NSangjung Woo <sangjung.woo@samsung.com>
[Fix bug about devm_extcon_dev_match/release() and code clean by Chanwoo Choi]
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

The regmap_irq_get_virq may return 0 or -EINVAL on error. Fail the probe
in both situations.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

In probe the driver queued delayed work for cable detection and
returned the result of queue_delayed_work() call. However the return
value of queue_delayed_work() does not indicate an error and in normal
condition it returns true which means successful work queue.
This effectively resulted in probe failure:
[    2.088204] max14577-muic: probe of max77836-muic failed with error 1
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 962e56bf ("extcon: max14577: Add extcon-max14577 driver...")
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Immutable branch between MFD and Extcon due for v3.16 merge-window.

Schedule delayed cable detection work on power efficient workqueue
so the scheduler won't wake up idle core for that work.
This extends the idle time for CPU cores and conserves power.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Schedule delayed cable detection work on power efficient workqueue
so the scheduler won't wake up idle core for that work.
This extends the idle time for CPU cores and conserves power.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Fix NULL pointer exception when platform data is not supplied. The
driver dereferenced pdata pointer where it could be NULL.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 810d601fSigned-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Fix NULL pointer exceptions when platform data is not supplied.

Trace of one exception:
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = c0004000
[00000008] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.14.0-12045-gead5dd4687a6-dirty #1628
task: eea80000 ti: eea88000 task.ti: eea88000
PC is at max77693_muic_probe+0x27c/0x528
LR is at regmap_write+0x50/0x60
pc : [<c041d1c8>]    lr : [<c02eba60>]    psr: 20000113
sp : eea89e38  ip : 00000000  fp : c098a834
r10: ee1a5a10  r9 : 00000005  r8 : c098a83c
r7 : 0000000a  r6 : c098a774  r5 : 00000005  r4 : eeb006d0
r3 : c0697bd8  r2 : 00000000  r1 : 00000001  r0 : 00000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 4000404a  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xeea88240)
Stack: (0xeea89e38 to 0xeea8a000)
9e20:                                                       c08499fc eeb006d0
9e40: 00000000 00000000 c0915f98 00000001 00000000 ee1a5a10 c098a730 c09a88b8
9e60: 00000000 c098a730 c0915f98 00000000 00000000 c02d6aa0 c02d6a88 ee1a5a10
9e80: c0a712c8 c02d54e4 00001204 c0628b00 ee1a5a10 c098a730 ee1a5a44 00000000
9ea0: eea88000 c02d57b4 00000000 c098a730 c02d5728 c02d3a24 ee813e5c eeb9d534
9ec0: c098a730 ee22f700 c097c720 c02d4b14 c08174ec c098a730 00000006 c098a730
9ee0: 00000006 c092fd30 c09b8500 c02d5df8 00000000 c093cbb8 00000006 c0008928
9f00: 000000c3 ef7fc785 00000000 ef7fc794 00000000 c08af968 00000072 eea89f30
9f20: ef7fc85e c065f198 000000c3 c003e87c 00000003 00000000 c092fd3c 00000000
9f40: c08af618 c0826d58 00000006 00000006 c0956f58 c093cbb8 00000006 c092fd30
9f60: c09b8500 000000c3 c092fd3c c08e8510 00000000 c08e8bb0 00000006 00000006
9f80: c08e8510 c0c0c0c0 00000000 c0628fac 00000000 00000000 00000000 00000000
9fa0: 00000000 c0628fb4 00000000 c000f038 00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0
[<c041d1c8>] (max77693_muic_probe) from [<c02d6aa0>] (platform_drv_probe+0x18/0x48)
[<c02d6aa0>] (platform_drv_probe) from [<c02d54e4>] (driver_probe_device+0x140/0x384)
[<c02d54e4>] (driver_probe_device) from [<c02d57b4>] (__driver_attach+0x8c/0x90)
[<c02d57b4>] (__driver_attach) from [<c02d3a24>] (bus_for_each_dev+0x54/0x88)
[<c02d3a24>] (bus_for_each_dev) from [<c02d4b14>] (bus_add_driver+0xe8/0x204)
[<c02d4b14>] (bus_add_driver) from [<c02d5df8>] (driver_register+0x78/0xf4)
[<c02d5df8>] (driver_register) from [<c0008928>] (do_one_initcall+0xc4/0x174)
[<c0008928>] (do_one_initcall) from [<c08e8bb0>] (kernel_init_freeable+0xfc/0x1c8)
[<c08e8bb0>] (kernel_init_freeable) from [<c0628fb4>] (kernel_init+0x8/0xec)
[<c0628fb4>] (kernel_init) from [<c000f038>] (ret_from_fork+0x14/0x3c)
Code: caffffe7 e59d200c e3550001 b3a05001 (e5923008)
---[ end trace 85db969ce011bde7 ]---
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 190d7cfcSigned-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Add support for MAX77836 chipset and its additional two LDO regulators.
These LDO regulators are controlled by the PMIC block with additional
regmap (different I2C slave address).

The MAX77836 charger and safeout regulators are almost identical to
MAX14577. The registers layout is the same, except values for charger's
current. The patch adds simple mapping between device type and supported
current by the charger regulator.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add support for MAX77836 chipset to the max14577 extcon driver. The
MAX77836 MUIC has additional interrupts (VIDRM, ADC1K) so IRQ handling
is split up into two functions: max14577_parse_irq() and
max77836_parse_irq().
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Tested-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add Maxim 77836 support to max14577 driver. The chipsets have same MUIC
component so the extcon, charger and regulators are almost the same. The
MAX77836 however has also PMIC and Fuel Gauge.

The MAX77836 uses three I2C slave addresses and has additional interrupts
(related to PMIC and Fuel Gauge). It has also Interrupt Source register,
just like MAX77686 and MAX77693.

The MAX77836 PMIC's TOPSYS and INTSRC interrupts are reported in the
PMIC block. The PMIC block has different I2C slave address and uses own
regmap so another regmap_irq_chip is needed.

Since we have two regmap_irq_chip, use shared interrupts on MAX77836.

This patch adds additional defines and functions to the max14577 MFD core
driver so the driver will handle both chipsets. Also this patch replaces
"0x1 << N" with BIT(N) in defines for register masks.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch prepares for adding support for MAX77836 device to existing
max14577 driver by adding MAX14577 prefix to defines of interrupts.

This is only a rename-like patch, new code is not added.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch continues the preparation for adding support for max77836
device to existing max14577 driver.

During probe choose muic_irqs according to device type. Currently there
are only "max14577_muic_irqs" but later patch will add max77836
interrupts.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Tested-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add max14577 prefix to muic_irqs array. This prepares for max77836
support in this extcon driver.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Tested-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch continues the preparation for adding support for MAX77836
device to existing max14577 driver.

Add enum for types of devices supported by this driver. The device type
will be detected by matching of_device_id, or i2c_device_id as a
fallback.

The patch also moves to separate function the code related to displaying
DeviceID register values.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add muic prefix to regmap config to differentiate between another regmap
config for MAX77836 PMIC node. Additionally remove unused
symbols: MAX14577_REG_INVALID and max14577_irq_source.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch use device name to make sysfs path according to device type:

max14577-muic
- /sys/class/extcon/max14577-muic/
max77836-muic
- /sys/class/extcon/max77836-muic/
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Tested-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

commit ca488 (extcon: of: Remove unnecessary function call by using the
name of device_node) started using node name instead of device name
to get the extcon device. This breaks dwc3-omap since it's not able to
get the extcon device anymore. Fixed it by setting edev name of
palmas to be the same as its node name.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Reported-by: NFelipe Balbi <balbi@ti.com>
Reviewed-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Pull slave-dmaengine fixes from Vinod Koul:
 "Back from long weekend here in India and now the time to send fixes
  for slave dmaengine.
   - Dan's fix of sirf xlate code
   - Jean's fix for timberland
   - edma fixes by Sekhar for SG handling and Yuan for changing init
     call"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dma: fix eDMA driver as a subsys_initcall
  dmaengine: sirf: off by one in of_dma_sirfsoc_xlate()
  platform: Fix timberdale dependencies
  dma: edma: fix incorrect SG list handling

Pull iommu fixes from Joerg Roedel:
 "Fixes for regressions:

   - fix wrong IOMMU enumeration causing some SCSI device drivers
     initialization failures
   - ARM-SMMU fixes for a panic condition and a wrong return value"

* tag 'iommu-fixes-v3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/arm-smmu: fix panic in arm_smmu_alloc_init_pte
  iommu/arm-smmu: Return 0 on unmap failure
  iommu/vt-d: fix bug in matching PCI devices with DRHD/RMRR descriptors
  iommu/vt-d: Fix get_domain_for_dev() handling of upstream PCIe bridges
  iommu/vt-d: fix memory leakage caused by commit ea8ea460

Pull perf tooling fixes from Ingo Molnar:
 "Three small tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools: Improve error reporting
  perf tools: Adjust symbols in VDSO
  perf kvm: Fix 'Min time' counting in report command

Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent

Pull perf/urgent fixes from Jiri Olsa:

User visible changes:

  * Adjust symbols in VDSO to properly resolve its function names (Vladimir Nikulichev)

  * Improve error reporting for record session failure (Adrien BAK)

  * Fix 'Min time' counting in report command (Alexander Yarygin)
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Signed-off-by: NIngo Molnar <mingo@kernel.org>

In the current version, when using perf record, if something goes
wrong in tools/perf/builtin-record.c:375
  session = perf_session__new(file, false, NULL);

The error message:
"Not enough memory for reading per file header"

is issued. This error message seems to be outdated and is not very
helpful. This patch proposes to replace this error message by
"Perf session creation failed"

I believe this issue has been brought to lkml:
https://lkml.org/lkml/2014/2/24/458
although this patch only tackles a (small) part of the issue.

Additionnaly, this patch improves error reporting in
tools/perf/util/data.c open_file_write.

Currently, if the call to open fails, the user is unaware of it.
This patch logs the error, before returning the error code to
the caller.
Reported-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NAdrien BAK <adrien.bak@metascale.org>
Link: http://lkml.kernel.org/r/1397786443.3093.4.camel@beast
[ Reorganize the changelog into paragraphs ]
[ Added empty line after fd declaration in open_file_write ]
Signed-off-by: NJiri Olsa <jolsa@redhat.com>

pert-report doesn't resolve function names in VDSO:

$ perf report --stdio -g flat,0.0,15,callee --sort pid
...
            8.76%
               0x7fff6b1fe861
               __gettimeofday
               ACE_OS::gettimeofday()
...

In this case symbol values should be adjusted the same way as for executables,
relocatable objects and prelinked libraries.

After fix:

$ perf report --stdio -g flat,0.0,15,callee --sort pid
...
            8.76%
               __vdso_gettimeofday
               __gettimeofday
               ACE_OS::gettimeofday()
Signed-off-by: NVladimir Nikulichev <nvs@tbricks.com>
Tested-by: NNamhyung Kim <namhyung@kernel.org>
Reviewed-by: NAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/969812.163009436-sendEmail@nvsSigned-off-by: NJiri Olsa <jolsa@redhat.com>

Every event in the perf-kvm has a 'stats' structure, which contains
max/min/average/etc times of handling this event.
The problem is that the 'perf-kvm stat report' command always shows
that 'min time' is 0us for every event. Example:

 # perf kvm stat report

 Analyze events for all VCPUs:

    VM-EXIT    Samples  Samples%     Time%   Min Time   Max Time Avg time
  [..]
  0xB2 MSCH         12     0.07%     0.00%        0us        8us 7.31us ( +-   2.11% )
  0xB2 CHSC         12     0.07%     0.00%        0us       18us 9.39us ( +-   9.49% )
  0xB2 STPX          8     0.05%     0.00%        0us        2us 1.88us ( +-   7.18% )
  0xB2 STSI          7     0.04%     0.00%        0us       44us 16.49us ( +-  38.20% )
  [..]

This happens because the 'stats' structure is not initialized and
stats->min equals to 0. Lets initialize the structure for every
event after its allocation using init_stats() function. This initializes
stats->min to -1 and makes 'Min time' statistics counting work:

 # perf kvm stat report

 Analyze events for all VCPUs:

    VM-EXIT    Samples  Samples%     Time%   Min Time   Max Time Avg time
  [..]
  0xB2 MSCH         12     0.07%     0.00%        6us        8us 7.31us ( +-   2.11% )
  0xB2 CHSC         12     0.07%     0.00%        7us       18us 9.39us ( +-   9.49% )
  0xB2 STPX          8     0.05%     0.00%        1us        2us 1.88us ( +-   7.18% )
  0xB2 STSI          7     0.04%     0.00%        1us       44us 16.49us ( +-  38.20% )
  [..]
Signed-off-by: NAlexander Yarygin <yarygin@linux.vnet.ibm.com>
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: NDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1397053319-2130-3-git-send-email-borntraeger@de.ibm.com
[ Fixing the perf examples changelog output ]
Signed-off-by: NJiri Olsa <jolsa@redhat.com>