openwrt/staging/blogic.git
11 years agostaging:vt6655:80211hdr: Whitespace cleanups
Joe Perches [Mon, 18 Mar 2013 17:44:34 +0000 (10:44 -0700)]
staging:vt6655:80211hdr: Whitespace cleanups

Neatening only.
git diff -w shows no differences.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge 3.9-rc3 into staging-next
Greg Kroah-Hartman [Mon, 18 Mar 2013 16:34:14 +0000 (09:34 -0700)]
Merge 3.9-rc3 into staging-next

This resolves the merge error due to removing the ccg staging driver,
and picks up the other staging driver fixes that went into 3.9-rc3.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoLinux 3.9-rc3
Linus Torvalds [Sun, 17 Mar 2013 22:59:32 +0000 (15:59 -0700)]
Linux 3.9-rc3

11 years agoperf,x86: fix link failure for non-Intel configs
David Rientjes [Sun, 17 Mar 2013 22:49:10 +0000 (15:49 -0700)]
perf,x86: fix link failure for non-Intel configs

Commit 1d9d8639c063 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") introduces a link failure since
perf_restore_debug_store() is only defined for CONFIG_CPU_SUP_INTEL:

arch/x86/power/built-in.o: In function `restore_processor_state':
(.text+0x45c): undefined reference to `perf_restore_debug_store'

Fix it by defining the dummy function appropriately.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoperf,x86: fix wrmsr_on_cpu() warning on suspend/resume
Linus Torvalds [Sun, 17 Mar 2013 22:44:43 +0000 (15:44 -0700)]
perf,x86: fix wrmsr_on_cpu() warning on suspend/resume

Commit 1d9d8639c063 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") fixed a crash when doing PEBS performance profiling
after resuming, but in using init_debug_store_on_cpu() to restore the
DS_AREA mtrr it also resulted in a new WARN_ON() triggering.

init_debug_store_on_cpu() uses "wrmsr_on_cpu()", which in turn uses CPU
cross-calls to do the MSR update.  Which is not really valid at the
early resume stage, and the warning is quite reasonable.  Now, it all
happens to _work_, for the simple reason that smp_call_function_single()
ends up just doing the call directly on the CPU when the CPU number
matches, but we really should just do the wrmsr() directly instead.

This duplicates the wrmsr() logic, but hopefully we can just remove the
wrmsr_on_cpu() version eventually.

Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 17 Mar 2013 18:04:14 +0000 (11:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "Eric's rcu barrier patch fixes a long standing problem with our
  unmount code hanging on to devices in workqueue helpers.  Liu Bo
  nailed down a difficult assertion for in-memory extent mappings."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix warning of free_extent_map
  Btrfs: fix warning when creating snapshots
  Btrfs: return as soon as possible when edquot happens
  Btrfs: return EIO if we have extent tree corruption
  btrfs: use rcu_barrier() to wait for bdev puts at unmount
  Btrfs: remove btrfs_try_spin_lock
  Btrfs: get better concurrency for snapshot-aware defrag work

11 years agoBtrfs: fix warning of free_extent_map
Liu Bo [Fri, 15 Mar 2013 14:46:39 +0000 (08:46 -0600)]
Btrfs: fix warning of free_extent_map

Users report that an extent map's list is still linked when it's actually
going to be freed from cache.

The story is that

a) when we're going to drop an extent map and may split this large one into
smaller ems, and if this large one is flagged as EXTENT_FLAG_LOGGING which means
that it's on the list to be logged, then the smaller ems split from it will also
be flagged as EXTENT_FLAG_LOGGING, and this is _not_ expected.

b) we'll keep ems from unlinking the list and freeing when they are flagged with
EXTENT_FLAG_LOGGING, because the log code holds one reference.

The end result is the warning, but the truth is that we set the flag
EXTENT_FLAG_LOGGING only during fsync.

So clear flag EXTENT_FLAG_LOGGING for extent maps split from a large one.

Reported-by: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Reported-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
11 years agoMerge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sat, 16 Mar 2013 01:06:55 +0000 (18:06 -0700)]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild fix from Michal Marek:
 "One fix for for make headers_install/headers_check to not require make
  3.81.  The requirement has been accidentally introduced in 3.7."

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kbuild: fix make headers_check with make 3.80

11 years agoMerge tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux
Linus Torvalds [Sat, 16 Mar 2013 01:05:37 +0000 (18:05 -0700)]
Merge tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux

Pull OpenRISC bug fixes from Jonas Bonn:

 - The GPIO descriptor work has exposed how broken the non-GPIOLIB bits
   for OpenRISC were.  We now require GPIOLIB as this is the preferred
   way forward.

 - The system.h split introduced a bug in llist.h for arches using
   asm-generic/cmpxchg.h directly, which is currently only OpenRISC.
   The patch here moves two defines from asm-generic/atomic.h to
   asm-generic/cmpxchg.h to make things work as they should.

 - The VIRT_TO_BUS selector was added for OpenRISC, but OpenRISC does
   not have the virt_to_bus methods, so there's a patch to remove it
   again.

* tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux:
  openrisc: remove HAVE_VIRT_TO_BUS
  asm-generic: move cmpxchg*_local defs to cmpxchg.h
  openrisc: require gpiolib

11 years agoMerge tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 16 Mar 2013 01:04:38 +0000 (18:04 -0700)]
Merge tag 'char-misc-3.9-rc2' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg Kroah-Hartman:
 "Here are some tiny fixes for the w1 drivers and the final removal
  patch for getting rid of CONFIG_EXPERIMENTAL (all users of it are now
  gone from your tree, this just drops the Kconfig item itself.)

  All have been in the linux-next tree for a while"

* tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  final removal of CONFIG_EXPERIMENTAL
  w1: fix oops when w1_search is called from netlink connector
  w1-gpio: fix unused variable warning
  w1-gpio: remove erroneous __exit and __exit_p()
  ARM: w1-gpio: fix erroneous gpio requests

11 years agoMerge tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Sat, 16 Mar 2013 00:35:49 +0000 (17:35 -0700)]
Merge tag 'sound-3.9' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes, as expected for the middle rc:
   - A couple of fixes for potential NULL dereferences and out-of-range
     array accesses revealed by static code parsers
   - A fix for the wrong error handling detected by trinity
   - A regression fix for missing audio on some MacBooks
   - CA0132 DSP loader fixes
   - Fix for EAPD control of IDT codecs on machines w/o speaker
   - Fix a regression in the HD-audio widget list parser code
   - Workaround for the NuForce UDH-100 USB audio"

* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix missing EAPD/GPIO setup for Cirrus codecs
  sound: sequencer: cap array index in seq_chn_common_event()
  ALSA: hda/ca0132 - Remove extra setting of dsp_state.
  ALSA: hda/ca0132 - Check download state of DSP.
  ALSA: hda/ca0132 - Check if dspload_image succeeded.
  ALSA: hda - Disable IDT eapd_switch if there are no internal speakers
  ALSA: hda - Fix snd_hda_get_num_raw_conns() to return a correct value
  ALSA: usb-audio: add a workaround for the NuForce UDH-100
  ALSA: asihpi - fix potential NULL pointer dereference
  ALSA: seq: Fix missing error handling in snd_seq_timer_open()

11 years agoMerge branch 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma...
Linus Torvalds [Sat, 16 Mar 2013 00:35:03 +0000 (17:35 -0700)]
Merge branch 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

Pull DMA-mapping fix from Marek Szyprowski:
 "An important fix for all ARM architectures which use ZONE_DMA.
  Without it dma_alloc_* calls with GFP_ATOMIC flag might have allocated
  buffers outsize DMA zone."

* 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: DMA-mapping: add missing GFP_DMA flag for atomic buffer allocation

11 years agoMerge tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo...
Linus Torvalds [Sat, 16 Mar 2013 00:34:01 +0000 (17:34 -0700)]
Merge tag 'mfd-fixes-3.9-1' of git://git./linux/kernel/git/sameo/mfd-fixes

Pull MFD fixes from Samuel Ortiz:
 "This is the first batch of MFD fixes for 3.9.

  With this one we have:

   - An ab8500 build failure fix.
   - An ab8500 device tree parsing fix.
   - A fix for twl4030_madc remove routine to work properly (when
     built-in).
   - A fix for properly registering palmas interrupt handler.
   - A fix for omap-usb init routine to actually write into the
     hostconfig register.
   - A couple of warning fixes for ab8500-gpadc and tps65912"

* tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
  mfd: twl4030-madc: Remove __exit_p annotation
  mfd: ab8500: Kill "reg" property from binding
  mfd: ab8500-gpadc: Complain if we fail to enable vtvout LDO
  mfd: wm831x: Don't forward declare enum wm831x_auxadc
  mfd: twl4030-audio: Fix argument type for twl4030_audio_disable_resource()
  mfd: tps65912: Declare and use tps65912_irq_exit()
  mfd: palmas: Provide irq flags through DT/platform data
  mfd: Make AB8500_CORE select POWER_SUPPLY to fix build error
  mfd: omap-usb-host: Actually update hostconfig

11 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Sat, 16 Mar 2013 00:33:13 +0000 (17:33 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Bug fixes for pmbus, ltc2978, and lineage-pem drivers

  Added specific maintainer for some hwmon drivers"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pmbus/ltc2978) Fix temperature reporting
  hwmon: (pmbus) Fix krealloc() misuse in pmbus_add_attribute()
  hwmon: (lineage-pem) Add missing terminating entry for pem_[input|fan]_attributes
  MAINTAINERS: Add maintainer for MAX6697, INA209, and INA2XX drivers

11 years agoperf,x86: fix kernel crash with PEBS/BTS after suspend/resume
Stephane Eranian [Fri, 15 Mar 2013 13:26:07 +0000 (14:26 +0100)]
perf,x86: fix kernel crash with PEBS/BTS after suspend/resume

This patch fixes a kernel crash when using precise sampling (PEBS)
after a suspend/resume. Turns out the CPU notifier code is not invoked
on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly
by the kernel and keeps it power-on/resume value of 0 causing any PEBS
measurement to crash when running on CPU0.

The workaround is to add a hook in the actual resume code to restore
the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0,
the DS_AREA will be restored twice but this is harmless.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agostaging: comedi: ni_labpc: fix common detach
Ian Abbott [Fri, 15 Mar 2013 13:39:52 +0000 (13:39 +0000)]
staging: comedi: ni_labpc: fix common detach

`labpc_common_detach()` calls `comedi_pci_disable()` unconditionally.
That's okay for PCI devices and harmless for ISA devices (as the
`hw_dev` member will be NULL so `comedi_to_pci_dev()` will return NULL
and `comedi_pci_disable()` checks for that), but it is disastrous for
PCMCIA devices.  Those are managed by the "ni_labpc_cs" module but it
calls this `labpc_common_detach()` and the `hw_dev` member will be
pointing to the `struct device` embedded in a `struct pcmcia_device` in
that case.  That's enough to confuse `comedi_pci_disable()` into
thinking it's a valid PCI device to be disabled.

Use the private board information (`thisboard`) to make sure it is a PCI
device before calling `comedi_pci_disable()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: remove unneeded settings of `dev->iobase`
Ian Abbott [Fri, 15 Mar 2013 13:15:36 +0000 (13:15 +0000)]
staging: comedi: remove unneeded settings of `dev->iobase`

Some PCI drivers use the "spare" `iobase` member of `struct
comedi_device` as a flag to indicate that the call to
`comedi_pci_enable()` was successful.  This is no longer necessary now
that `comedi_pci_enable()` and `comedi_pci_disable()` use the
`ioenabled` member of `struct comedi_device` themselves to keep track of
what needs to be done.

Remove the unnecessary assignments to the `iobase` member in the
relevant drivers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: add 'ioenabled' flag to device
Ian Abbott [Fri, 15 Mar 2013 13:15:35 +0000 (13:15 +0000)]
staging: comedi: add 'ioenabled' flag to device

Add 1-bit bit-field member `ioenabled` of type `bool` to `struct
comedi_device`.  Use this to keep track of whether a PCI device and its
BARs have been successfully enabled by `comedi_pci_enable()`.  This
avoids overloading the meaning of the `iobase` member which is used by
several drivers to hold the base port I/O address of a board's "main"
registers.  Other drivers using MMIO use `iobase` as a flag to indicate
that the preceding call to `comedi_pci_enable()` was successful.  They
no longer need to do that.

The name `ioenabled` is intended to be PCI-agnostic so it can be used
for similar purposes by non-PCI drivers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: make 'in_request_module' a bool bit-field
Ian Abbott [Fri, 15 Mar 2013 13:15:34 +0000 (13:15 +0000)]
staging: comedi: make 'in_request_module' a bool bit-field

Change the `in_request_module` member of `struct comedi_device` to a
1-bit bit-field of type `bool` and move it into a suitable hole in the
data type to save a few bytes.  Change the assigned values to `true` and
`false`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: make 'dev->attached' a bool bit-field
Ian Abbott [Fri, 15 Mar 2013 13:15:33 +0000 (13:15 +0000)]
staging: comedi: make 'dev->attached' a bool bit-field

Change the `attached` member of `struct comedi_device` to a 1-bit
bit-field of type `bool`.  Change assigned values to `true` and `false`
and replace or remove comparison operations with simple boolean tests.

We'll put some extra bit-fields in the gap later to save space.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: ni_660x: support NI PXI-6624
Ian Abbott [Fri, 15 Mar 2013 11:16:36 +0000 (11:16 +0000)]
staging: comedi: ni_660x: support NI PXI-6624

Florent Boudet reports success using a NI PXI-6624 board with a
trivially modified version of the "ni_660x" driver (addition to the PCI
device ID table and comedi board table).  He did this with the
out-of-tree Comedi drivers at www.comedi.org, but it applies equally to
the in-tree "staging" drivers.

He reports the PXI-6624 is basically the same as the PXI-6602, but with
isolated channels and external voltage source.

Add support for NI PXI-6224 to the "ni_660x" driver.

(Maybe the driver should be renamed to "ni_66xx"?)

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: Florent Boudet <flboudet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: ni_660x: reformat driver description comment
Ian Abbott [Fri, 15 Mar 2013 11:16:35 +0000 (11:16 +0000)]
staging: comedi: ni_660x: reformat driver description comment

Convert to preferred block comment style.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: adv_pci_dio: restore PCI-1753E support
Ian Abbott [Fri, 15 Mar 2013 10:32:12 +0000 (10:32 +0000)]
staging: comedi: adv_pci_dio: restore PCI-1753E support

Back in the old days (before "staging") when Comedi only supported
manual configuration of devices, the "adv_pci_dio" driver supported both
PCI-1753 ("pci1753") and PCI-1753E ("pci1753e").  In actual fact,
"pci1753e" is just a PCI-1753 connected by a ribbon cable to a PCI-1753E
expansion card, which is plugged into a PCI slot but is not a PCI device
itself.  Now that the "adv_pci_dio" driver only supports automatic
configuration of devices and the main "comedi" module no longer allows
auto-configuration to be disabled, a PCI-1753 with a PCI-1753E expansion
card is always treated as an unexpanded PCI-1753 ("pci1753") and there
is no way to override it.  (Recently, an undefined macro
`USE_PCI1753E_BOARDINFO` was used to make the driver switch to
supporting "pci1753e" instead of "pci1753", but this is less than
ideal.)

Advantech has their own Linux (non-Comedi) driver for the PCI-1753 which
detects whether the PCI-1753E expansion card is connected to the
PCI-1753 by fiddling with a register at offset 53 from the main
registers base.

Use Advantech's test in our "adv_pci_dio" driver.  If the board appears
to be a PCI-1753 ("pci1753"), check if the expansion card appears to be
present, and if so, treat the device as a PCI-1753 plus PCI-1753E
expansion card ("pci1753e").

Also, get rid of `enum dio_boardid` (`BOARD_...` enum values) which was
added recently and just use the older `TYPE_...` enum values from `enum
hw_cards_id` instead as the mapping is now 1-to-1.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: ni_atmio: fix build error due to missing '; '
H Hartley Sweeten [Thu, 14 Mar 2013 20:33:24 +0000 (13:33 -0700)]
staging: comedi: ni_atmio: fix build error due to missing '; '

Fix a build error due to a missing ';' at the end of a line.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Geert Uytterhoeven <geert.uytterhoeven@gmail.com>
Cc: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: dwc2: remove a kfree(NULL)
Dan Carpenter [Fri, 15 Mar 2013 06:03:31 +0000 (09:03 +0300)]
Staging: dwc2: remove a kfree(NULL)

dwc2_hcd_release() calls dwc2_hcd_free() which frees ->core_params
and sets it to NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: sep: fix possible memory leak in sep_prepare_input_dma_table()
Wei Yongjun [Fri, 15 Mar 2013 09:20:08 +0000 (17:20 +0800)]
staging: sep: fix possible memory leak in sep_prepare_input_dma_table()

'lli_array_ptr' etc. are malloced in sep_prepare_input_dma_table() and should
be freed before leaving from the error handling case, otherwise it will cause
memory leak.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for omap_bandgap_validate
Eduardo Valentin [Fri, 15 Mar 2013 13:00:38 +0000 (09:00 -0400)]
staging: omap-thermal: add documentation for omap_bandgap_validate

Document the helper to validate a struct omap_bandgap and a sensor id.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: remove TODO entry for exposed APIs
Eduardo Valentin [Fri, 15 Mar 2013 13:00:37 +0000 (09:00 -0400)]
staging: omap-thermal: remove TODO entry for exposed APIs

Not all APIs exposed today are used. However all unused APIs
will be required once the thermal layer allows IRQ based
policies.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: remove TODO entry suggesting regmap usage
Eduardo Valentin [Fri, 15 Mar 2013 13:00:36 +0000 (09:00 -0400)]
staging: omap-thermal: remove TODO entry suggesting regmap usage

It is hard to use regmap because benefit of using regmap cache
may not be applicable as there is a specific sequence to
restore the bandgap context.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: switch mutex to spinlock inside omap-bandgap
Eduardo Valentin [Fri, 15 Mar 2013 13:00:35 +0000 (09:00 -0400)]
staging: omap-thermal: switch mutex to spinlock inside omap-bandgap

Because there is a need to lock inside IRQ handler, this patch
changes the locking mechanism inside the omap-bandgap.[c,h] to
spinlocks. Now this lock is used to protect omap_bandgap struct
during APIs exposed (possibly used in sysfs handling functions)
and inside the ALERT IRQ handler.

Because there are registers shared among the sensors, this lock
is global, not per sensor.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: Add a MAINTAINERS entry for TI bandgap and thermal driver
Eduardo Valentin [Fri, 15 Mar 2013 13:00:34 +0000 (09:00 -0400)]
staging: omap-thermal: Add a MAINTAINERS entry for TI bandgap and thermal driver

Add myself as maintainer of the TI bandgap and thermal driver.

CC: Santosh Shilimkar <santosh.shilimkar@ti.com>
CC: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: change Kconfig dependency method
Eduardo Valentin [Fri, 15 Mar 2013 13:00:33 +0000 (09:00 -0400)]
staging: omap-thermal: change Kconfig dependency method

Now arch code has to specify CONFIG_ARCH_HAS_BANDGAP. So, this driver
will be selectable only if the platform reports itself as having a
bandgap device.

Any OMAP variant or any other OMAP version needs to
select ARCH_HAS_BANDGAP
so that the driver will be applicable. A part from that it is
required to device the data structures that maps the registers
and their bitfields. The DT compatible list must also be updated.

CC: Santosh Shilimkar <santosh.shilimkar@ti.com>
CC: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_build function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:32 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_build function

Document function to build omap_bandgap structure

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_alert_init function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:31 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_alert_init function

Document function that sets talert handling up.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_tshut_init function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:30 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_tshut_init function

Add documentation for the function to setup TSHUT handling

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document _omap_bandgap_read_threshold function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:29 +0000 (09:00 -0400)]
staging: omap-thermal: document _omap_bandgap_read_threshold function

Add documentation of the function for reading alert thresholds

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document _omap_bandgap_write_threshold function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:28 +0000 (09:00 -0400)]
staging: omap-thermal: document _omap_bandgap_write_threshold function

Document function to update alert thresholds.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_update_alert_threshold function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:27 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_update_alert_threshold function

Document function to program alert thresholds

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_force_single_read
Eduardo Valentin [Fri, 15 Mar 2013 13:00:26 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_force_single_read

Document function to initialize the conversion state machine.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: update omap_bandgap_set_continous_mode documentation
Eduardo Valentin [Fri, 15 Mar 2013 13:00:25 +0000 (09:00 -0400)]
staging: omap-thermal: update omap_bandgap_set_continous_mode documentation

Simple update on function documentation.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: rename enable_continuous_mode
Eduardo Valentin [Fri, 15 Mar 2013 13:00:24 +0000 (09:00 -0400)]
staging: omap-thermal: rename enable_continuous_mode

This patch names 'enable_continuous_mode' accordingly to the file
standard naming.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: section of device driver callbacks
Eduardo Valentin [Fri, 15 Mar 2013 13:00:23 +0000 (09:00 -0400)]
staging: omap-thermal: section of device driver callbacks

Section with platform device callbacks

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: device initialization section
Eduardo Valentin [Fri, 15 Mar 2013 13:00:22 +0000 (09:00 -0400)]
staging: omap-thermal: device initialization section

Section of helper functions to initilize the bandgap device

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: refactor APIs handling threshold values
Eduardo Valentin [Fri, 15 Mar 2013 13:00:21 +0000 (09:00 -0400)]
staging: omap-thermal: refactor APIs handling threshold values

This patch improves the code that handles threshold values
by creating single functions that are usable for tcold and
thot. This way we won't have duplicated functionality just
because it is handling different bitfields. Now
the added functions are reused in several places where
it is needed to update any threshold.

This patch also removes macros that are used only inside
the _validate helper function.

In this patch there is also an addition of an extra function
section for Exposed APIs, used outside the omap-bandgap.c,
but inside the omap-thermal driver.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: update omap_bandgap_unmask_interrupts documentation
Eduardo Valentin [Fri, 15 Mar 2013 13:00:20 +0000 (09:00 -0400)]
staging: omap-thermal: update omap_bandgap_unmask_interrupts documentation

Proper document the function to configure the IRQ event masks.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: refactor temp_sensor_unmask_interrupts
Eduardo Valentin [Fri, 15 Mar 2013 13:00:19 +0000 (09:00 -0400)]
staging: omap-thermal: refactor temp_sensor_unmask_interrupts

This change improves temp_sensor_unmask_interrupts by:
. renaming it to omap_bandgap_unmask_interrupts
. making it a void function, as there is nothing really to report an error.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: threshold manipulation section
Eduardo Valentin [Fri, 15 Mar 2013 13:00:18 +0000 (09:00 -0400)]
staging: omap-thermal: threshold manipulation section

Section of functions manipulating thresholds for Alert and Shutdown.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: document omap_bandgap_add_hyst function
Eduardo Valentin [Fri, 15 Mar 2013 13:00:17 +0000 (09:00 -0400)]
staging: omap-thermal: document omap_bandgap_add_hyst function

Document function to handle hysteresis.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: rename add_hyst to omap_bandgap_add_hyst
Eduardo Valentin [Fri, 15 Mar 2013 13:00:16 +0000 (09:00 -0400)]
staging: omap-thermal: rename add_hyst to omap_bandgap_add_hyst

This patch improves the add_hyst function by:
. Renaming it to omap_bandgap_add_hyst
. Moving it to the ADC conversion functions section
. Changing its signature to follow the driver standard

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for omap_bandgap_mcelsius_to_adc
Eduardo Valentin [Fri, 15 Mar 2013 13:00:15 +0000 (09:00 -0400)]
staging: omap-thermal: add documentation for omap_bandgap_mcelsius_to_adc

Document the conversion function.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: move conv table limits out of sensor data
Eduardo Valentin [Fri, 15 Mar 2013 13:00:14 +0000 (09:00 -0400)]
staging: omap-thermal: move conv table limits out of sensor data

As we have one conv table per bandgap device and not per sensor,
this patch changes the data structures so that the conv table
min and max values are now part of bandgap_data and not sensor_data.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: rewrite omap_bandgap_mcelsius_to_adc on kernel coding style
Eduardo Valentin [Fri, 15 Mar 2013 13:00:13 +0000 (09:00 -0400)]
staging: omap-thermal: rewrite omap_bandgap_mcelsius_to_adc on kernel coding style

Follow Documentation/CodingStyle while doing omap_bandgap_mcelsius_to_adc

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: name temp_to_adc_conversion in a better way
Eduardo Valentin [Fri, 15 Mar 2013 13:00:12 +0000 (09:00 -0400)]
staging: omap-thermal: name temp_to_adc_conversion in a better way

Rename temp_to_adc_conversion to omap_bandgap_mcelsius_to_adc. This name,
though longer, describes better the function.

This patch also changes this function signature so the function follows
the style of this file.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for omap_bandgap_adc_to_mcelsius
Eduardo Valentin [Fri, 15 Mar 2013 13:00:11 +0000 (09:00 -0400)]
staging: omap-thermal: add documentation for omap_bandgap_adc_to_mcelsius

Document the conversion function.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: rewrite omap_bandgap_adc_to_mcelsius on kernel coding style
Eduardo Valentin [Fri, 15 Mar 2013 13:00:10 +0000 (09:00 -0400)]
staging: omap-thermal: rewrite omap_bandgap_adc_to_mcelsius on kernel coding style

Follow Documentation/CodingStyle while doing  omap_bandgap_adc_to_mcelsius.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: name adc_to_temp_conversion in a better way
Eduardo Valentin [Fri, 15 Mar 2013 13:00:09 +0000 (09:00 -0400)]
staging: omap-thermal: name adc_to_temp_conversion in a better way

Rename adc_to_temp_conversion to omap_bandgap_adc_to_mcelsius. This name,
though longer, describes better the function.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: ADC section
Eduardo Valentin [Fri, 15 Mar 2013 13:00:08 +0000 (09:00 -0400)]
staging: omap-thermal: ADC section

Section of ADC helpers functions

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: IRQ handler section
Eduardo Valentin [Fri, 15 Mar 2013 13:00:07 +0000 (09:00 -0400)]
staging: omap-thermal: IRQ handler section

Section of IRQ handlers

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: section of basic helpers
Eduardo Valentin [Fri, 15 Mar 2013 13:00:06 +0000 (09:00 -0400)]
staging: omap-thermal: section of basic helpers

Group of simple functions aggregating basic functionality.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add a section of register manipulation
Eduardo Valentin [Fri, 15 Mar 2013 13:00:05 +0000 (09:00 -0400)]
staging: omap-thermal: add a section of register manipulation

This is introduces a series of marks inside the code to
better organize functions per group, aggregating their
functionality.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: read status only once inside alert IRQ
Eduardo Valentin [Fri, 15 Mar 2013 13:00:04 +0000 (09:00 -0400)]
staging: omap-thermal: read status only once inside alert IRQ

There is no need to re-read status register.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: remove duplicated code
Eduardo Valentin [Fri, 15 Mar 2013 13:00:03 +0000 (09:00 -0400)]
staging: omap-thermal: remove duplicated code

There is no need to assign twice the same variable with the very same value.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: update tshut IRQ handler documentation
Eduardo Valentin [Fri, 15 Mar 2013 13:00:02 +0000 (09:00 -0400)]
staging: omap-thermal: update tshut IRQ handler documentation

Documents tshut handler better.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: update documentation for talert irq handler
Eduardo Valentin [Fri, 15 Mar 2013 13:00:01 +0000 (09:00 -0400)]
staging: omap-thermal: update documentation for talert irq handler

Document the Talert IRQ handler.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: rename talert handler
Eduardo Valentin [Fri, 15 Mar 2013 13:00:00 +0000 (09:00 -0400)]
staging: omap-thermal: rename talert handler

Simple rename to cope with file naming pattern.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for omap_bandgap_read_temp
Eduardo Valentin [Fri, 15 Mar 2013 12:59:59 +0000 (08:59 -0400)]
staging: omap-thermal: add documentation for omap_bandgap_read_temp

Document function which reads temperature register, depending on
bandgap device version.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for omap_bandgap_power
Eduardo Valentin [Fri, 15 Mar 2013 12:59:58 +0000 (08:59 -0400)]
staging: omap-thermal: add documentation for omap_bandgap_power

Document the helper function to turn a bandgap device on and off.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: make a omap_bandgap_power with only one exit point
Eduardo Valentin [Fri, 15 Mar 2013 12:59:57 +0000 (08:59 -0400)]
staging: omap-thermal: make a omap_bandgap_power with only one exit point

Change the way the omap_bandgap_power is written so that it has only
one exit entry (Documentation/CodingStyle).

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: add documentation for register access functions
Eduardo Valentin [Fri, 15 Mar 2013 12:59:56 +0000 (08:59 -0400)]
staging: omap-thermal: add documentation for register access functions

Document the helper functions that manipulates registers and their
bitfields. All of them work based of the io mapped area.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: introduce RMW_BITS macro
Eduardo Valentin [Fri, 15 Mar 2013 12:59:55 +0000 (08:59 -0400)]
staging: omap-thermal: introduce RMW_BITS macro

This patch introduce a macro to read, update, write bitfields.
It will be specific to bandgap data structures.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: fix error checking
Eduardo Valentin [Fri, 15 Mar 2013 12:59:54 +0000 (08:59 -0400)]
staging: omap-thermal: fix error checking

The omap_bandgap_get_sensor_data() function returns ERR_PTR(),
but it can also return NULL, in case of initilization, so we need to use
IS_ERR_OR_NULL() rather than only IS_ERR().

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: style cleanup on omap-bandgap.c
Eduardo Valentin [Fri, 15 Mar 2013 12:59:53 +0000 (08:59 -0400)]
staging: omap-thermal: style cleanup on omap-bandgap.c

simple changes on alignments and white spaces

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: update documentation of omap-bandgap.h
Eduardo Valentin [Fri, 15 Mar 2013 12:59:52 +0000 (08:59 -0400)]
staging: omap-thermal: update documentation of omap-bandgap.h

This patch updates the existing data structures for omap bandgap,
inside omap-bandgap.h.

TODO: remove unused fields.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: create header for register, bitfields and definitions
Eduardo Valentin [Fri, 15 Mar 2013 12:59:51 +0000 (08:59 -0400)]
staging: omap-thermal: create header for register, bitfields and definitions

In order to have a better code readability and organization, this patch
splits omap-bandgap.h into three headers.
. omap-bandgap.h will contain only the driver related data structures
definitions and macros
. omap4xxx-bandgap.h will contain only defines and bitfields
related to OMAP4 based devices
. omap5xxx-bandgap.h will contain only defines and bitfields
related to OMAP5 based devices

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: remove unused _SHIFT macros
Eduardo Valentin [Fri, 15 Mar 2013 12:59:50 +0000 (08:59 -0400)]
staging: omap-thermal: remove unused _SHIFT macros

As these macros are not used on any part of the code,
this patch removes all the *_SHIT defines.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: omap-thermal: use BIT() macro
Eduardo Valentin [Fri, 15 Mar 2013 12:59:49 +0000 (08:59 -0400)]
staging: omap-thermal: use BIT() macro

For code readability, this patch changes the bit definition
under omap-bandgap.h to use the BIT() macro.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoALSA: hda - Fix missing EAPD/GPIO setup for Cirrus codecs
Takashi Iwai [Fri, 15 Mar 2013 13:23:32 +0000 (14:23 +0100)]
ALSA: hda - Fix missing EAPD/GPIO setup for Cirrus codecs

During the transition to the generic parser, the hook to the codec
specific automute function was forgotten.  This resulted in the silent
output on some MacBooks.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agosound: sequencer: cap array index in seq_chn_common_event()
Dan Carpenter [Fri, 15 Mar 2013 06:14:22 +0000 (09:14 +0300)]
sound: sequencer: cap array index in seq_chn_common_event()

"chn" here is a number between 0 and 255, but ->chn_info[] only has
16 elements so there is a potential write beyond the end of the
array.

If the seq_mode isn't SEQ_2 then we let the individual drivers
(either opl3.c or midi_synth.c) handle it.  Those functions all
do a bounds check on "chn" so I haven't changed anything here.
The opl3.c driver has up to 18 channels and not 16.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agomfd: twl4030-madc: Remove __exit_p annotation
Arnd Bergmann [Thu, 14 Mar 2013 21:56:38 +0000 (22:56 +0100)]
mfd: twl4030-madc: Remove __exit_p annotation

4740f73fe5 "mfd: remove use of __devexit" removed the __devexit annotation
on the twl4030_madc_remove function, but left an __exit_p() present on the
pointer to this function. Using __exit_p was as wrong with the devexit in
place as it is now, but now we get a gcc warning about an unused function.

In order for the twl4030_madc_remove to work correctly in built-in code, we
have to remove the __exit_p.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
11 years agoALSA: hda/ca0132 - Remove extra setting of dsp_state.
Dylan Reid [Fri, 15 Mar 2013 00:27:46 +0000 (17:27 -0700)]
ALSA: hda/ca0132 - Remove extra setting of dsp_state.

spec->dsp_state is initialized to DSP_DOWNLOAD_INIT, no need to reset
and check it in ca0132_download_dsp().

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoALSA: hda/ca0132 - Check download state of DSP.
Dylan Reid [Fri, 15 Mar 2013 00:27:45 +0000 (17:27 -0700)]
ALSA: hda/ca0132 - Check download state of DSP.

Instead of using the dspload_is_loaded() function, check the dsp_state
that is kept in the spec.  The dspload_is_loaded() function returns
true if the DSP transfer was never started.  This false-positive leads
to multiple second delays when ca0132_setup_efaults() times out on
each write.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agoALSA: hda/ca0132 - Check if dspload_image succeeded.
Dylan Reid [Fri, 15 Mar 2013 00:27:44 +0000 (17:27 -0700)]
ALSA: hda/ca0132 - Check if dspload_image succeeded.

If dspload_image() fails, it was ignored and dspload_wait_loaded() was
still called.  dsp_loaded should never be set to true in this case,
skip it.  The check in dspload_wait_loaded() return true if the DSP is
loaded or if it never started.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
11 years agomm/fremap.c: fix possible oops on error path
Michel Lespinasse [Thu, 14 Mar 2013 23:50:02 +0000 (16:50 -0700)]
mm/fremap.c: fix possible oops on error path

The vm_flags introduced in 6d7825b10dbe ("mm/fremap.c: fix oops on error
path") is supposed to avoid a compiler warning about unitialized
vm_flags without changing the generated code.

However I am concerned that this is going to be very brittle, and fail
with some compiler versions. The failure could be either of:

- compiler could actually load vma->vm_flags before checking for the
  !vma condition, thus reintroducing the oops

- compiler could optimize out the !vma check, since the pointer just got
  dereferenced shortly before (so the compiler knows it can't be NULL!)

I propose reversing this part of the change and initializing vm_flags to 0
just to avoid the bogus uninitialized use warning.

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoStaging: ccg: delete it from the tree
Greg Kroah-Hartman [Thu, 14 Mar 2013 22:27:31 +0000 (15:27 -0700)]
Staging: ccg: delete it from the tree

Now that it isn't in the build, just delete the ccg driver from the tree
entirely.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: ccg: remove it from the build
Greg Kroah-Hartman [Thu, 14 Mar 2013 22:22:40 +0000 (15:22 -0700)]
Staging: ccg: remove it from the build

This driver has been nothing but trouble, and no one shipping a new
Android device uses it, so let's just drop it, making the USB Gadget
driver authors lives a whole lot easier as they do their rework.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: netlogic: remove unused variable in xlr_net_start_xmit()
Wei Yongjun [Thu, 14 Mar 2013 14:55:47 +0000 (22:55 +0800)]
Staging: netlogic: remove unused variable in xlr_net_start_xmit()

The variable 'qmap' is initialized but never used
otherwise, so remove the unused variable.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: adv_pci1710: remove iorange member
Ian Abbott [Thu, 14 Mar 2013 11:40:54 +0000 (11:40 +0000)]
staging: comedi: adv_pci1710: remove iorange member

The `iorange` member of `struct boardtype` is initialized but not used.
Get rid of it and the macro constants `IORANGE_171x` and `IORANGE_1720`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: addi_apci_1710: only pci bar 2 is used
H Hartley Sweeten [Wed, 13 Mar 2013 19:18:12 +0000 (12:18 -0700)]
staging: comedi: addi_apci_1710: only pci bar 2 is used

This driver used to be tied to the addi-data common code which
always saved the start address of pci bars 0, 1, 2, and 3 for
use by the driver. This driver only uses pci bar 2.

Remove all the non-used pci bars and move the saving of pci bar
2 so it occurs right after the pci device is enabled.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck...
Linus Torvalds [Thu, 14 Mar 2013 21:53:07 +0000 (14:53 -0700)]
Merge branch 'rcu/urgent' of git://git./linux/kernel/git/paulmck/linux-rcu

Pull fix for hlist_entry_safe() regression from Paul McKenney:
 "This contains a single commit that fixes a regression in
  hlist_entry_safe().  This macro references its argument twice, which
  can cause NULL-pointer errors.  This commit applies a gcc statement
  expression, creating a temporary variable to avoid the double
  reference.  This has been posted to LKML at

    https://lkml.org/lkml/2013/3/9/75.

  Kudos to CAI Qian, whose testing uncovered this, to Eric Dumazet, who
  spotted root cause, and to Li Zefan, who tested this commit."

* 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  list: Fix double fetch of pointer in hlist_entry_safe()

11 years agostaging: comedi_pci: pass comedi_device to comedi_pci_enable()
H Hartley Sweeten [Wed, 13 Mar 2013 17:36:31 +0000 (10:36 -0700)]
staging: comedi_pci: pass comedi_device to comedi_pci_enable()

Make comedi_pci_enable() use the same parameter type as
comedi_pci_disable(). This also allows comedi_pci_enable
to automatically determine the resource name passed to
pci_request_regions().

Make sure the errno value returned is passed on instead of
assuming an errno. Also, remove any kernel noise that is
generated when the call fails.

The National Instruments drivers that use the mite module
currently enable the PCI device in the mite module. For
those drivers move the call to comedi_pci_enable into the
driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi_pci: make comedi_pci_disable() safe to call
H Hartley Sweeten [Wed, 13 Mar 2013 17:35:51 +0000 (10:35 -0700)]
staging: comedi_pci: make comedi_pci_disable() safe to call

Currently all the comedi PCI drivers need to do some checking in
their (*detach) before calling comedi_pci_disable() in order to
make sure the PCI device has actually be enabled.

Change the parameter passed to comedi_pci_disable() from a struct
pci_dev pointer to a comedi_device pointer and have comedi_pci_disable()
handle all the checking.

For most comedi PCI drivers this also allows removing the local
variable holding the pointer to the pci_dev. For some of the drivers
comedi_pci_disable can now be used directly as the (*detach) function.

The National Instruments drivers that use the mite module currently
enable/disable the PCI device in the mite module. For those drivers
move the call to comedi_pci_disable into the driver and make sure
dev->iobase is set to a non-zero value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: dgrp: cleanup sparse warnings
Nathan Zimmer [Wed, 13 Mar 2013 18:05:59 +0000 (13:05 -0500)]
staging: dgrp: cleanup sparse warnings

A cleanup patch to remove sparse warnings caused by my other patch
"procfs: Improve Scaling in proc" since now proc_fops is protected by the rcu.

Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: android: remove dependency on TINY_SHMEM
Paul Bolle [Thu, 14 Mar 2013 09:41:39 +0000 (10:41 +0100)]
staging: android: remove dependency on TINY_SHMEM

The Kconfig entry for the "Anonymous Shared Memory Subsystem" got added
in v3.3. It has an optional dependency on TINY_SHMEM. But TINY_SHMEM had
already been removed in v2.6.29. So this optional dependency can safely
be removed too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: csr: fix compilation warning in unifi_siwscan
Devendra Naga [Thu, 14 Mar 2013 06:40:28 +0000 (02:40 -0400)]
staging: csr: fix compilation warning in unifi_siwscan

got the warnings

drivers/staging/csr/sme_wext.c: In function ‘unifi_siwscan’:
drivers/staging/csr/sme_wext.c:1276:9: warning: variable ‘scantype’ set but not used [-Wunused-but-set-variable]

fixed by removing the variable

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoStaging: comedi: Fixed camel case style issue in usbdux.c
Jacob Garber [Wed, 13 Mar 2013 16:19:20 +0000 (12:19 -0400)]
Staging: comedi: Fixed camel case style issue in usbdux.c

This is a patch to usbdux.c that fixes the camel case warnings found
by the checkpatch.pl tool

Signed-off-by: Jacob Garber <ajtgarber@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: the DWC2 driver uses bus_to_virt
Stephen Rothwell [Wed, 13 Mar 2013 05:39:35 +0000 (16:39 +1100)]
staging: the DWC2 driver uses bus_to_virt

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: dwc2: fix compiler warnings
Paul Zimmerman [Thu, 14 Mar 2013 20:12:00 +0000 (13:12 -0700)]
staging: dwc2: fix compiler warnings

Fix some compiler warnings when building for i386 arch. Reported by
Fengguang's build-bot.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agolist: Fix double fetch of pointer in hlist_entry_safe()
Paul E. McKenney [Sat, 9 Mar 2013 15:38:41 +0000 (07:38 -0800)]
list: Fix double fetch of pointer in hlist_entry_safe()

The current version of hlist_entry_safe() fetches the pointer twice,
once to test for NULL and the other to compute the offset back to the
enclosing structure.  This is OK for normal lock-based use because in
that case, the pointer cannot change.  However, when the pointer is
protected by RCU (as in "rcu_dereference(p)"), then the pointer can
change at any time.  This use case can result in the following sequence
of events:

1. CPU 0 invokes hlist_entry_safe(), fetches the RCU-protected
pointer as sees that it is non-NULL.

2. CPU 1 invokes hlist_del_rcu(), deleting the entry that CPU 0
just fetched a pointer to.  Because this is the last entry
in the list, the pointer fetched by CPU 0 is now NULL.

3. CPU 0 refetches the pointer, obtains NULL, and then gets a
NULL-pointer crash.

This commit therefore applies gcc's "({ })" statement expression to
create a temporary variable so that the specified pointer is fetched
only once, avoiding the above sequence of events.  Please note that
it is the caller's responsibility to use rcu_dereference() as needed.
This allows RCU-protected uses to work correctly without imposing
any additional overhead on the non-RCU case.

Many thanks to Eric Dumazet for spotting root cause!

Reported-by: CAI Qian <caiqian@redhat.com>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Li Zefan <lizefan@huawei.com>
11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Thu, 14 Mar 2013 19:11:28 +0000 (12:11 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs

Pull ext2, ext3, reiserfs, quota fixes from Jan Kara:
 "A fix for regression in ext2, and a format string issue in ext3.  The
  rest isn't too serious."

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: Fix BUG_ON in evict() on inode deletion
  reiserfs: Use kstrdup instead of kmalloc/strcpy
  ext3: Fix format string issues
  quota: add missing use of dq_data_lock in __dquot_initialize

11 years agoBtrfs: fix warning when creating snapshots
Liu Bo [Wed, 13 Mar 2013 13:43:03 +0000 (07:43 -0600)]
Btrfs: fix warning when creating snapshots

Creating snapshot passes extent_root to commit its transaction,
but it can lead to the warning of checking root for quota in
the __btrfs_end_transaction() when someone else is committing
the current transaction.  Since we've recorded the needed root
in trans_handle, just use it to get rid of the warning.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>