IIO fixes for the 4.1 cycle, round 1.

The following changes since commit c610f7f772aa06ae2bd8e5ace87cde4d90f70198:

Merge 4.0-rc7 into staging-next (2015-04-07 11:03:02 +0200)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git tags/iio-fixes-for-4.1a

for you to fetch changes up to 54b8e12ecddafabd0fc1e9a720e5a00907e2c28b:

iio: light: hid-sensor-prox: Fix memory leak in probe() (2015-05-08 09:54:52 -0400)

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The usual mixed bag of fixes for IIO in the 4.1 cycle.

One core fix

* Set updated for a iio kfifo was incorrectly set to false during a failed update, resulting in atttempts to repeat the failed operation appearing to succeed.

This time I've decided to list the driver fixes in alphabetical order rather than 'randomly'.

* axp288_adc - a recent change added a check for valid info masks when reading channels from consumer drivers.
* bmp280 - temperature compensation was failing to read the tfine value, hence causing a temperature of 0 to always be returned and incorrect presure measurements.
* cc10001 - Fix channel number mapping when some channels are reserved for remote CPUs. Fix an issue with the use of the power-up/power-down register (basically wrong polarity). Fix an issue due to the missinterpretting the return value from regulator_get_voltage. Add a delay before the start bit as recommended for the hardware to avoid data corruption.
* hid pressure - fix channel spec of modfiied, but no modifier (which makes no sense!)
* hid proximity - fix channel spec of modified, but no modifier (which makes no sense!). Fix a memory leak in the probe function.
* mcp320x - occasional incorrect readings on dma using spi busses due to cacheline corruption. Fixed by forcing ___cacheline_aligned for the buffers.
* mma9551 - buffer overrun fix (miss specified maximum length of buffers)
* mma9553 - endian fix on status message. Add an enable element for activity channel. Input checking for activity period to avoid rather unpredictable results.
* spmi-vadc - fix an overflow in the output value normalization seen on some boards.
* st-snesors - oops due to use of a mutex that is not yet initialized during probe.
* xilinx adc - Some wrong register addresses, a wrong address for vccaux channel, incorrect scale on VREFP and incorrect sign on VREFN.

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Alban Bedel (1):
iio:st_sensors: Fix oops when probing SPI devices

Fabio Estevam (1):
iio: light: hid-sensor-prox: Fix memory leak in probe()

Gabriele Mazzotta (1):
iio: kfifo: Set update_needed to false only if a buffer was allocated

Irina Tirdea (5):
iio: pressure: bmp280: fix temp compensation
iio: accel: mma9553: fix endianness issue when reading status
iio: accel: mma9551_core: prevent buffer overrun
iio: accel: mma9553: add enable channel for activity
iio: accel: mma9553: check input value for activity period

Ivan T. Ivanov (1):
iio: adc: spmi-vadc: Fix overflow in output value normalization

Jacob Pan (1):
iio/axp288_adc: add missing channel info mask

Michael Welling (1):

      iio: mcp320x: Fix occasional incorrect readings

Naidu Tellapati (4):
iio: adc: cc10001: Fix the channel number mapping
iio: adc: cc10001: Fix incorrect use of power-up/power-down register
iio: adc: cc10001: Fix regulator_get_voltage() return value check
iio: adc: cc10001: Add delay before setting START bit

Srinivas Pandruvada (2):
iio: light: hid-sensor-prox: Fix modifier
iio: pressure: hid-sensor-press: Fix modifier

Thomas Betker (4):
iio: adc: xilinx: Fix register addresses
iio: adc: xilinx: Fix "vccaux" channel .address
iio: adc: xilinx: Fix VREFP scale
iio: adc: xilinx: Fix VREFN sign

 drivers/iio/accel/mma9551_core.c                | 21 +++++++--
 drivers/iio/accel/mma9553.c                     | 18 +++----
 drivers/iio/accel/st_accel_core.c               |  1 +
 drivers/iio/adc/axp288_adc.c                    | 12 ++---
 drivers/iio/adc/cc10001_adc.c                   | 62 ++++++++++++++-----------
 drivers/iio/adc/mcp320x.c                       |  6 +--
 drivers/iio/adc/qcom-spmi-vadc.c                |  7 +--
 drivers/iio/adc/xilinx-xadc-core.c              |  5 +-
 drivers/iio/adc/xilinx-xadc.h                   |  6 +--
 drivers/iio/common/st_sensors/st_sensors_core.c |  2 -
 drivers/iio/gyro/st_gyro_core.c                 |  1 +
 drivers/iio/kfifo_buf.c                         |  3 +-
 drivers/iio/light/hid-sensor-prox.c             | 12 ++---
 drivers/iio/magnetometer/st_magn_core.c         |  1 +
 drivers/iio/pressure/bmp280.c                   |  1 +
 drivers/iio/pressure/hid-sensor-press.c         |  2 -
 drivers/iio/pressure/st_pressure_core.c         |  1 +
 17 files changed, 95 insertions(+), 66 deletions(-)

Hi Greg,

We have a fix for one of these fixes, so please ignore this I'll apply that as a fixup and then send you a fresh pull request. sorry for the noise.

Jonathan