Tags

Second set of IIO new drivers, cleanups and functionality for the 3.16 cycle.

This set contains a change to the ABI for the hid-sensors drivers to bring them
in line with the long published documentation.  Unfortunately, rather than
reporting true scale and offset values via sysfs they were reporting
some magic numbers that could only be converted to anything useful using
the HID sensors specification. I missed this entirely through the introduction
of a number of drivers, only picking up on it recently.  Srinivas has had
user feedback about this as well. The patch set is too large to go as a fix
at this stage in the cycle and is not a regression fix as this was never
right and so will have to wait for the next merge window. Srinivas assures
me that there are relatively few pieces of hardware out there and he has
had a number of people contact him to point out that the drivers did not
obey the ABI.  Hence hopefully the fallout of this, if any will be minor.
If we don't fix it now, it will only get worse going forward. There is no
sensible way of maintaining the incorrect ABI as it is simply returning
the wrong values through the standard interfaces.

Non IIO elements
* Introduce devm_kmemdup.  Does what it says on the tin.

New drivers:
* hid-sensors rotation devices (output as quaternion)
* Freescale MPL115A2 presure and temperature sensor.
* Melexis mlx90614 contactless infrared sensor.
* Freescale MMA8452Q 3-axis accelerometer.

New functionality:
* Addition of multiple element callback to allow for sysfs interfaces to access
  elements such as quaternions which have no useful meaning if all 4 elements
  are not presented together.  Other future usecases for this include
  rotation matrices.
* Support for multiple element buffer entries for exactly the same uses as
  the sysfs related elements described above.
* Quaternion support via the quaternion IIO modifier.
* TEMP_AMBIENT and TEMP_OBJECT modifiers to distinguish cases with thermopile
  devices.
* hid-sensors gain sysfs access to the sensor readings. Previously these
  drivers used the buffered interface only.  This change involves some
  additional hid-sensors core support to read poll values back from the devices
  to allow the drivers to know roughly how long to wait for a result when
  polling the sensor.  There is also an associated hid-sensors abi to allow
  the devices to be turned off between reads and powered up on demand.

Cleanups and fixes
* Hid sensors fix as described above. Result is to make the _scale and _offset
  attributes applicable in the same way as for all other IIO drivers.
* Some additional documentation - mostly covering stuff that graduated from
  staging without managing to take it's ABI docs with it.
* A series of little tidy ups to the exynos_adc driver that make the code
  nicer to read and improve handling of some corner cases.
* A tidy up to mag3110 (logical fix rather than a real one ;). Also enable
  user offset calibration for this device.
* Drop some left over IS_ERR() checks from ad799x that snuck through during
  the cleanup in the last IIO patch set.
* Fix a naming issue from clashing patches in ak8975 - note the clash only
  occured in the last IIO patch set, hence the fix needs to go through this
  tree.
* A format string missmatch fix in ad7280.c. Unlikely to have ever had an
  impact so not worth rushing through.

Linux 3.15-rc4

Pinctrl cleanup and reworks for 3.16

This serie of patch:
  - Moves the Allwinner pinctrl driver to a folder of its own
  - removes the sunxi-pinctrl-pins header, and split the driver into a core
    one, with all the logic, and smaller drivers, one for each SoC, that
    declare the pins, and will provide to the core the set of pins.
  - And does a few cleanups here and there.

ACPI and power management fixes for 3.15-rc4

 - There are two bugs in the ACPI PNP core that cause errors to
   be returned if optional ACPI methods are not present.  After
   an ACPI core change made in 3.14 one of those errors leads
   to serial port suspend failures on some systems.  Fix from
   Rafael J Wysocki.

 - A recently added PNP quirk related to Intel chipsets intorduced
   a build error in unusual configurations (PNP without PCI).  Fix
   from Bjorn Helgaas.

 - An ACPI EC workaround related to system suspend on Samsung machines
   added in 3.14 introduced a race causing some valid EC events to be
   discarded.  Fix from Kieran Clancy.

 - The acpi-cpufreq driver fails to load on some systems after a 3.14
   commit related to APIC ID parsing that overlooked one corner case.
   Fix from Lan Tianyu.

 - Fix for a recently introduced build problem in the ppc-corenet
   cpufreq driver from Tim Gardner.

 - A recent cpufreq core change to ensure serialization of frequency
   transitions for drivers with a ->target_index() callback overlooked
   the fact that some of those drivers had been doing operations
   introduced by it into the core already by themselves.  That resulted
   in a mess in which the core and the drivers try to do the same thing
   and block each other which leads to deadlocks.  Fixes for the
   powernow-k7, powernow-k6, and longhaul cpufreq drivers from
   Srivatsa S Bhat.

 - Fix for a computational error in the powernow-k6 cpufreq driver
   from Srivatsa S Bhat.

/

ASoC: mc13783 DT support

Tagged since it updates the MFD as well.

Pin control fixes for v3.15:

- Signedness bug in the TB10x

- GPIO inversion fix for the AS3722

- Clear pending pin interrups enabled in the bootloader in the
  pinctrl-single driver

- Minor pin definition fixes for the PFC/Renesas driver

This is the 3.2.58 stable release

sound fixes for 3.15-rc4

A few collections of small eggs that have been gathered during
the Easter holidays.  Mostly small ASoC fixes, with a HD-audio
quirk and a workaround for Nvidia controller.

Immutable branch between MFD, MMC and Memstick for the v3.16 merge window.

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

Linux 3.15-rc3

This is the 3.14.2 stable release

This is the 3.10.38 stable release

This is the 3.4.88 stable release

Second set of fixes for IIO in the 3.15 cycle.

* ad2s1200 - Fix some missing parenthesis in a for statement that could have
  led to an error being missed when getting gpios.
* Fix a null derefference issue in the mpu6050 when platform data is not
  provided (or is provided via the device tree for example).
* exynos_adc bug on remove due to child devices having been added to the
  parent of the IIO device rather than the IIO device itself.  This caused an
  issue with the IIO device removing itself in it's remove function.
* Make all ADC drivers buildable as modules to avoid dependency issues if
  the IIO core is itself built as a module.  The exynos adc bug became
  apparently whilst this fix was being tested.

First round of IIO new driver, functionality and cleanups for the 3.16 cycle.

New device support
* AS3935 Lightning Sensor
* MCP3426/7/8 support added to the existing MCP3422 ADC driver
* AK8963 support in the AK8975 driver
* MPU6500 support in the MPU6050 driver (the functionality that is different
  is mostly not supported yet in either part).

Staging Graduations
* AD799x ADC

New functionality
* ACPI enumeration for the ak8975 driver

Cleanup / tweaks
* Use snprintf as a matter of good practice in a few additional places.
* Document *_mean_raw attributes.  These have been there a while, but were
  undocumented.
* Add an in kernel interface to get the mean values.
* Bug in the length of the event info mask that by coincidence wasn't yet
  actually causing any problems.
* itg3000 drop an unreachable return statement.
* spear_adc cleanups (heading for a staging graduation but a few more
  issues showed up in the review of these patches).
* Exynos ADC dependencies changed so it is only built when Exynos is present
  or COMPILE_TEST and OF are set.
* tsl2583 cleanups.
* Some cut and paste typos in the comments of various drivers still in staging.
* Couple of minor improvements to the ST sensor drivers.