linux.git/drivers/iio, branch v3.8-rc2

Merge tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

2012-12-17T02:55:20+00:00

Pull MFS update from Samuel Ortiz:
 "This is the MFD patch set for the 3.8 merge window.

  We have several new drivers, most of the time coming with their sub
  devices drivers:

   - Austria Microsystem's AS3711
   - Nano River's viperboard
   - TI's TPS80031, AM335x TS/ADC,
   - Realtek's MMC/memstick card reader
   - Nokia's retu

  We also got some notable cleanups and improvements:

   - tps6586x got converted to IRQ domains.
   - tps65910 and tps65090 moved to the regmap IRQ API.
   - STMPE is now Device Tree aware.
   - A general twl6040 and twl-core cleanup, with moves to the regmap
     I/O and IRQ APIs and a conversion to the recently added PWM
     framework.
   - sta2x11 gained regmap support.

  Then the rest is mostly tiny cleanups and fixes, among which we have
  Mark's wm5xxx and wm8xxx patchset."

Far amount of annoying but largely trivial conflicts.  Many due to
__devinit/exit removal, others due to one or two of the new drivers also
having come in through another tree.

* tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits)
  mfd: tps6507x: Convert to devm_kzalloc
  mfd: stmpe: Update DT support for stmpe driver
  mfd: wm5102: Add readback of DSP status 3 register
  mfd: arizona: Log if we fail to create the primary IRQ domain
  mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ
  mfd: tps80031: Add terminating entry for tps80031_id_table
  mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask()
  mfd: wm5102: Add tuning for revision B
  mfd: arizona: Defer patch initialistation until after first device boot
  mfd: tps65910: Fix wrong ack_base register
  mfd: tps65910: Remove unused data
  mfd: stmpe: Get rid of irq_invert_polarity
  mfd: ab8500-core: Fix invalid free of devm_ allocated data
  mfd: wm5102: Mark DSP memory regions as volatile
  mfd: wm5102: Correct default for LDO1_CONTROL_2
  mfd: arizona: Register haptics devices
  mfd: wm8994: Make current device behaviour the default
  mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ
  mfd: Fix stmpe.c build when OF is not enabled
  mfd: jz4740-adc: Use devm_kzalloc
  ...

iio: imu: adis16480: remove duplicated include from adis16480.c

2012-11-30T13:11:46+00:00

Remove duplicated include.

Signed-off-by: Wei Yongjun 
Signed-off-by: Jonathan Cameron

iio: gyro: adis16136: remove duplicated include from adis16136.c

2012-11-30T13:11:46+00:00

Remove duplicated include.

Signed-off-by: Wei Yongjun 
Signed-off-by: Jonathan Cameron

iio:imu: adis16480: show_firmware() buffer too small

2012-11-30T13:10:16+00:00

Smatch complains that snprintf() returns the number of characters,
not counting the NUL terminator, which *would* have been printed if
there were enough space.  In other words the return value could be more
than sizeof(buf).

In this case, we are printing something like "ff.ff\n" which is at most
6 characters and a NUL so that's not an issue.  I changed snprintf() to
scnprintf() to silence the warning.

But since the buffer doesn't include space for the NUL terminator, we
need to make it bigger or the "\n" will be truncated off.

Signed-off-by: Dan Carpenter 
Acked-By: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio:gyro: adis16136: divide by zero in write_frequency()

2012-11-30T13:09:22+00:00

It's slightly cleaner to use kstrtouint() because we pass unsigned ints
to adis16136_set_freq().  On 64 bit systems, if the user passed LONG_MIN
then it we would get past the test against zero but crash in
adis16136_set_freq() because we truncate the high bits away.

Signed-off-by: Dan Carpenter 
Acked-By: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio: adc: Add Texas Instruments ADC081C021/027 support

2012-11-30T12:57:09+00:00

Add support for reading conversion results from the ADC and provide them
through a single IIO channel. A proper scaling factor is also exported
based on the reference voltage provided by a regulator.

Signed-off-by: Thierry Reding 
Reviewed-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio:ad7793: Add support for the ad7796 and ad7797

2012-11-30T12:57:09+00:00

The ad7796 and ad7797 are similar to the ad7792 and ad7793 but only have a
single differential input instead of two. Also some other features are missing
like the programmable gain amplifier and also not all sampling frequencies
supported by the ad7792/ad7793 are supported by the ad7796/ad7797. This patch
adds new feature flags for the features not present in the ad7796/ad7797. The
patch also adds a struct iio_info field to the chip_info struct, this becomes
necessary since the ad7796/ad7797 needs a special set of sysfs attributes.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio:ad7793: Add support for the ad7798 and ad7799

2012-11-30T12:57:09+00:00

The ad7798 and ad7799 are similar to the ad7792 and ad7793 but are missing some
features like the temperature sensor, being able to use an external clocksource
and a few other things. This patch adds a new 'flags' fields to the chip_info
struct which allows to specify which features a certain chip variant supports.
The setup code will then ignore any platform data fields which are related to
non supported features.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

staging:iio: Move ad7793 driver out of staging

2012-11-30T12:57:08+00:00

The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron

iio:adc:ad7298 make the tx and rx buffers __be16

2012-11-21T18:24:26+00:00

These buffers are a little interesting in that their
content may have variable endianness, but all but one
element will definitely be big endian.

Reported-by: kbuild test robot 
Signed-off-by: Jonathan Cameron 
Acked-by: Lars-Peter Clausen