linux-stable.git/drivers/iio, branch v5.6

Merge tag 'iio-fixes-for-5.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

2020-03-18T10:20:42+00:00

Jonathan writes:

First set of IIO fixes in the 5.6 cycle.

* adxl372
  - Fix marking of buffered values as big endian.
* ak8974
  - Fix wrong handling of negative values when read from sysfs.
* at91-sama5d2
  - Fix differential mode by ensuring configuration set correctly.
* ping
  - Use the write sensor type for of_ping_match table.
* sps30
  - Kconfig build dependency fix.
* st-sensors
  - Fix a wrong identification of which part the SMO8840 ACPI ID indicates.
* stm32-dsfdm
  - Fix a sleep in atomic issue by not using a trigger when it makes no sense.
* stm32-timer
  - Make sure master mode is disabled when stopping.
* vcnl400
  - Update some sampling periods based on new docs.

* tag 'iio-fixes-for-5.6a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: ping: set pa_laser_ping_cfg in of_ping_match
  iio: chemical: sps30: fix missing triggered buffer dependency
  iio: st_sensors: remap SMO8840 to LIS2DH12
  iio: light: vcnl4000: update sampling periods for vcnl4040
  iio: light: vcnl4000: update sampling periods for vcnl4200
  iio: accel: adxl372: Set iio_chan BE
  iio: magnetometer: ak8974: Fix negative raw values in sysfs
  iio: trigger: stm32-timer: disable master mode when stopping
  iio: adc: stm32-dfsdm: fix sleep in atomic context
  iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode

iio: ping: set pa_laser_ping_cfg in of_ping_match

2020-03-08T16:21:23+00:00

pa_laser_ping_cfg should be set in of_ping_match
instead of pa_ping_cfg.

Fixes: 7bb501f49ddb ("iio: ping: add parallax ping sensors")
Signed-off-by: YueHaibing 
Acked-by: Andreas Klinger 
Signed-off-by: Jonathan Cameron

iio: chemical: sps30: fix missing triggered buffer dependency

2020-03-08T16:21:23+00:00

SPS30 uses triggered buffer, but the dependency is not specified in the
Kconfig file.  Fix this by selecting IIO_BUFFER and IIO_TRIGGERED_BUFFER
config symbols.

Cc: stable@vger.kernel.org
Fixes: 232e0f6ddeae ("iio: chemical: add support for Sensirion SPS30 sensor")
Signed-off-by: Petr Štetiar 
Signed-off-by: Jonathan Cameron

iio: st_sensors: remap SMO8840 to LIS2DH12

2020-03-08T16:21:23+00:00

According to ST, the HID is for LIS2DH12.

Fixes: 3d56e19815b3 ("iio: accel: st_accel: Add support for the SMO8840 ACPI id")
Signed-off-by: Wen-chien Jesse Sung 
Tested-by: Hans de Goede 
Reviewed-by: Hans de Goede 
Cc: 
Signed-off-by: Jonathan Cameron

iio: light: vcnl4000: update sampling periods for vcnl4040

2020-03-08T16:21:23+00:00

Vishay has published a new version of "Designing the VCNL4200 Into an
Application" application note in October 2019. The new version specifies
that there is +-20% of part to part tolerance. Although the application
note is related to vcnl4200, according to support the vcnl4040's "ASIC
is quite similar to that one for the VCNL4200".

So update the sampling periods (and comment), including the correct
sampling period for proximity. Both sampling periods are lower. Users
relying on the blocking behaviour of reading will get proximity
measurements much earlier.

Fixes: 5a441aade5b3 ("iio: light: vcnl4000 add support for the VCNL4040 proximity and light sensor")
Reviewed-by: Guido Günther 
Tested-by: Guido Günther 
Signed-off-by: Tomas Novotny 
Cc: 
Signed-off-by: Jonathan Cameron

iio: light: vcnl4000: update sampling periods for vcnl4200

2020-03-08T16:21:21+00:00

Vishay has published a new version of "Designing the VCNL4200 Into an
Application" application note in October 2019. The new version specifies
that there is +-20% of part to part tolerance. This explains the drift
seen during experiments. The proximity pulse width is also changed from
32us to 30us. According to the support, the tolerance also applies to
ambient light.

So update the sampling periods. As the reading is blocking, current
users may notice slightly longer response time.

Fixes: be38866fbb97 ("iio: vcnl4000: add support for VCNL4200")
Reviewed-by: Guido Günther 
Signed-off-by: Tomas Novotny 
Cc: 
Signed-off-by: Jonathan Cameron

iio: accel: adxl372: Set iio_chan BE

2020-03-08T16:21:21+00:00

Data stored in the iio-buffer is BE and this
should be specified in the iio_chan_spec struct.

Fixes: f4f55ce38e5f8 ("iio:adxl372: Add FIFO and interrupts support")
Signed-off-by: Alexandru Tachici 
Cc: 
Signed-off-by: Jonathan Cameron

iio: magnetometer: ak8974: Fix negative raw values in sysfs

2020-02-21T11:59:46+00:00

At the moment, reading from in_magn_*_raw in sysfs tends to return
large values around 65000, even though the output of ak8974 is actually
limited to ±32768. This happens because the value is never converted
to the signed 16-bit integer variant.

Add an explicit cast to s16 to fix this.

Fixes: 7c94a8b2ee8c ("iio: magn: add a driver for AK8974")
Signed-off-by: Stephan Gerhold 
Reviewed-by: Linus Waleij 
Cc: 
Signed-off-by: Jonathan Cameron

iio: trigger: stm32-timer: disable master mode when stopping

2020-02-15T18:41:00+00:00

Master mode should be disabled when stopping. This mainly impacts
possible other use-case after timer has been stopped. Currently,
master mode remains set (from start routine).

Fixes: 6fb34812c2a2 ("iio: stm32 trigger: Add support for TRGO2 triggers")

Signed-off-by: Fabrice Gasnier 
Cc: 
Signed-off-by: Jonathan Cameron

Merge tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

2020-02-04T07:17:41+00:00

Pull chrome platform updates from Benson Leung:
 "CrOS EC:

   - Refactoring of some of cros_ec's headers:

     include/linux/mfd/cros_ec.h now removed, new cros_ec.h added to
     drivers/platform/chrome which contains shared operations of cros_ec
     transport drivers.

   - Response tracing in cros_ec_proto

  Wilco EC:

   - Fix unregistration order.

   - Fix keyboard backlight probing on systems without keyboard
     backlight

   - Minor cleanup (newlines in printks, COMPILE_TEST)

  Misc:

   - chromeos_laptop converted to use i2c_new_scanned_device instead of
     i2c_new_probed_device"

* tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec: Match implementation with headers
  platform/chrome: cros_ec: Drop unaligned.h include
  platform/chrome: wilco_ec: Allow wilco to be compiled in COMPILE_TEST
  platform/chrome: wilco_ec: Add newlines to printks
  platform/chrome: wilco_ec: Fix unregistration order
  cros_ec: treewide: Remove 'include/linux/mfd/cros_ec.h'
  platform/chrome: cros_ec_ishtp: Make init_lock static
  platform/chrome: chromeos_laptop: Convert to i2c_new_scanned_device
  platform/chrome: cros_ec_lpc: Use platform_get_irq_optional() for optional IRQs
  platform/chrome: cros_ec_proto: Add response tracing
  platform/chrome: cros_ec_trace: Match trace commands with EC commands