Граф коммитов

453 Коммитов

Автор SHA1 Сообщение Дата
he, bo fe2d3df639 io: accel: kxcjk1013: restore the range after resume.
On some laptops, kxcjk1013 is powered off when system enters S3. We need
restore the range regiter during resume. Otherwise, the sensor doesn't
work properly after S3.

Signed-off-by: he, bo <bo.he@intel.com>
Signed-off-by: Chen, Hu <hu1.chen@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-03-09 17:30:14 +00:00
Luciana da Costa Marques d4cd36220e iio:accel:adxl345: Change alignment to match paranthesis
Align broken line to match upper line parenthesis. Solves the
checkpatch.pl's message:

CHECK: Alignment should match open parenthesis

Signed-off-by: Luciana da Costa Marques <lucianadacostamarques@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-09 18:46:02 +00:00
Daniel Drake f38ab20b74 iio: st_accel: use ACPI orientation data
Platform-specific ST accelerometer mount matrix information can be
provided by returning a package of 6 integers from the ACPI _ONT
method. This has been seen on Acer products such as Veriton Z4860G,
Z6860G and A890, which include a ST SMO8840 sensor. We have also
confirmed experimentally that the Windows driver uses such information.

The _ONT data format was explained by a ST vendor contact. However,
strangely enough, the _ONT transformations must be applied after first
applying another mount matrix which we determined experimentally. ST
have not commented on why this is the case, but we imagine that perhaps
earlier devices (before _ONT was introduced) required this translation
and hence it became 'standard.'

Interpret the _ONT data and export the equivalent mount matrix to
userspace.

If no _ONT data is present, no mount matrix is exported.

Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-02 09:28:51 +00:00
Anson Huang f6ff49b8a3 iio: accell: mma8452: add vdd/vddio regulator operation support
The accelerometer's power supply could be controllable on some
platforms, such as i.MX6Q-SABRESD board, the mma8451's power supplies
are controlled by a GPIO fixed regulator, need to make sure the
regulators are enabled before any communication with mma8451, this
patch adds vdd/vddio regulator operation support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-01-12 19:11:26 +00:00
Greg Kroah-Hartman c6cbcdea7a Second set of IIO new device support, features and cleanups for the 4.21 cycle.
Staging graduation
 * ad2s90
   - Driver for this resolver to digital chip.
 
 New drivers and device support.
 * ad5686
   - Add support for ad5310r DAC and associated fix in value read back.
 * exynos-adc
   - Support for S5PV210 which is slightly different from other parts.
 * mcp41010
   - Driver supporting MCP41010, MCP41050, MCP41100, MCP42010, MCP42050 and
   MCP42100 microchip potentiometers.
 
 New ACPI ids.
 * ak8975
   - AKM9911 ACPI HID.
 * kxcjk-1013
   - KXJ2109 ACPI HID.
   - KIOX010A ACPI HID.
 
 New features
 * ad5933
   - Explicit DT binding.
 * ad2s90
   - Explicit DT binding including dropping spi setup that is done via dt
     in favour of verifying the settings form DT.
 * adt7316
   - Explicit DT binding and support for gpio, irq_flags etc.
 * stm32-adc
   - Runtime power management.
 
 Minor fixes and cleanups
 * core
   - Protect against missing info structure.
 * ad2s90
   - SPDX
   - Add documentation fo the mutex.
 * ad7280a
   - Check allocation failure.
   - Fix an accidental replacement of an error return.
 * adt7316
   - Switch some variables to be local and rename for consistency with other
     drivers.
   - Revert a false handling of 0 as an error introduced earlier this cycle.
 * bmi160
   - Use devm functions throughout probe() to avoid need for remove().
 * hid-sensor-hub
   - White space cleanup.
 * hts221
   - MAINTAINERS entry.
 * lis302
   - Use generic name in the DT binding doc.
 * Messon-saradc
   - Check for allocation error.
   - Fix some presented clock names that break clk debugfs.
 * qcom-spmi-adc
   - A fix for initialization of the prescale property. Came late in the
     cycle, so merge window is probably the best route for this.
 * st_lsm6dsx
   - Allow for variable read length to support wider range of slave devices.
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Merge tag 'iio-for-4.21b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new device support, features and cleanups for the 4.21 cycle.

Staging graduation
* ad2s90
  - Driver for this resolver to digital chip.

New drivers and device support.
* ad5686
  - Add support for ad5310r DAC and associated fix in value read back.
* exynos-adc
  - Support for S5PV210 which is slightly different from other parts.
* mcp41010
  - Driver supporting MCP41010, MCP41050, MCP41100, MCP42010, MCP42050 and
  MCP42100 microchip potentiometers.

New ACPI ids.
* ak8975
  - AKM9911 ACPI HID.
* kxcjk-1013
  - KXJ2109 ACPI HID.
  - KIOX010A ACPI HID.

New features
* ad5933
  - Explicit DT binding.
* ad2s90
  - Explicit DT binding including dropping spi setup that is done via dt
    in favour of verifying the settings form DT.
* adt7316
  - Explicit DT binding and support for gpio, irq_flags etc.
* stm32-adc
  - Runtime power management.

Minor fixes and cleanups
* core
  - Protect against missing info structure.
* ad2s90
  - SPDX
  - Add documentation fo the mutex.
* ad7280a
  - Check allocation failure.
  - Fix an accidental replacement of an error return.
* adt7316
  - Switch some variables to be local and rename for consistency with other
    drivers.
  - Revert a false handling of 0 as an error introduced earlier this cycle.
* bmi160
  - Use devm functions throughout probe() to avoid need for remove().
* hid-sensor-hub
  - White space cleanup.
* hts221
  - MAINTAINERS entry.
* lis302
  - Use generic name in the DT binding doc.
* Messon-saradc
  - Check for allocation error.
  - Fix some presented clock names that break clk debugfs.
* qcom-spmi-adc
  - A fix for initialization of the prescale property. Came late in the
    cycle, so merge window is probably the best route for this.
* st_lsm6dsx
  - Allow for variable read length to support wider range of slave devices.

* tag 'iio-for-4.21b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (37 commits)
  iio: adc: qcom-spmi-adc5: Initialize prescale properly
  dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant
  iio: adc: Allow selection of Exynos ADC on S5PV210
  iio: adc: exynos-adc: Add S5PV210 variant
  iio: bmi160: use all devm functions in probe
  iio: dac: ad5686: fix bit shift read register
  iio:dac:ad5686: Add AD5310R support
  Revert "Staging: iio: adt7316: Add an extra check for 'ret' equals to 0"
  dt-bindings: iio: accel: use a generic node name for lis302
  iio: core: check 'info' value before registering the device
  staging: iio: adc: ad7280a: fix overwrite of the returned value
  staging: iio: adc: ad7280a: check for devm_kasprint() failure
  iio: humidity: hts221: add entry in MAINTAINERS file
  iio: magnetometer: ak8975: Add the "AKM9911" ACPI HID
  staging:iio:ad2s90: Move out of staging
  staging:iio:ad2s90: Add comment to device state mutex
  staging:iio:ad2s90: Replace license text w/ SPDX identifier
  dt-bindings:iio:resolver: Add docs for ad2s90
  staging:iio:ad2s90: Add max frequency check at probe
  staging:iio:ad2s90: Remove spi setup that should be done via dt
  ...
2018-12-13 13:37:24 +01:00
Greg Kroah-Hartman d5d12ce229 Merge 4.20-rc5 into staging-next
We need the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-03 07:55:28 +01:00
Hans de Goede 7f6232e695 iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-ID
Various 2-in-1's use KIOX010A and KIOX020A as HIDs for 2 KXCJ91008
accelerometers. The KIOX010A HID is for the one in the base and the
KIOX020A for the accelerometer in the keyboard.

Since userspace does not have a way yet to deal with (or ignore) the
accelerometer in the keyboard, this commit just adds the KIOX010A HID
for now so that display rotation will work.

Related: https://github.com/hadess/iio-sensor-proxy/issues/166
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25 12:35:26 +00:00
Stephan Gerhold b911b0ab0d iio: accel: kxcjk-1013: Add the "KXJ2109" ACPI HID
This HID is used on the ASUS MeMO Pad 7 (ME176C) tablet.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25 09:31:27 +00:00
Heiko Stuebner 49b623732e iio: st-accel: add support for lis3de
This commit add support for STMicroelectronics lis3de accelerometer.
Datasheet for this device can be found here:

https://www.st.com/resource/en/datasheet/lis3de.pdf

Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16 18:32:30 +00:00
Hans de Goede 0145b50566 iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
Before this commit sensor_hub_input_attr_get_raw_value() failed to take
the signedness of 16 and 8 bit values into account, returning e.g.
65436 instead of -100 for the z-axis reading of an accelerometer.

This commit adds a new is_signed parameter to the function and makes all
callers pass the appropriate value for this.

While at it, this commit also fixes up some neighboring lines where
statements were needlessly split over 2 lines to improve readability.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16 11:42:12 +00:00
Hans de Goede 047a6f7db2 iio: accel: kxcjk1013: Add KIOX0009 ACPI Hardware-ID
Add KIOX0009 ACPI HID, this is used e.g. on the Acer One 10.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-14 18:01:40 +01:00
Stefan Popa 94dbb46c7a iio: adxl372: Add support for I2C communication
The adxl372 is designed to communicate in either SPI or I2C protocol. It
autodetects the format being used, requiring no configuration control to
select the format.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-08 15:54:38 +01:00
Stefan Popa d9e8fd0421 iio: adxl372: Refactor the driver
This patch restructures the existing adxl372 driver by adding a module for
SPI and a header file, while the baseline module deals with the chip-logic.

This is a necessary step, as this driver should support in the future
a similar device which differs only in the type of interface used (I2C
instead of SPI).

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-08 15:28:27 +01:00
Stefan Popa 7ec040af6c iio:adxl372: Add filter bandwidth support
This patch adds the option for the user to select the filter bandwidth. The
user can also read the available bandwidths which are always adjusted to be
at most half of the sampling frequency. Furthermore, the currently selected
bandwidth can be read via the read_raw function, while the write_raw sets a
new bandwidth value.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25 09:19:33 +01:00
Stefan Popa 5e605a4df6 iio:adxl372: Add sampling frequency support
This patch adds the option for the user to select the sampling frequency.
Also, the user can read the available frequencies and read the currently
set frequency via the read_raw function. The frequency can be set via the
write_raw function.

When the frequency is set, the bandwidth is also checked and ensured
that it is constrained to at most half of the sampling frequency. Also, the
activity and inactivity timers have to be updated because they depend on
the selected ODR.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25 09:18:35 +01:00
Stefan Popa 1c412a3215 iio: adxl372: Provide validate_trigger and validate_device callbacks
This patch provides a validate_device callback for the trigger which makes
sure that other devices are rejected.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25 09:16:42 +01:00
Alexandru Ardelean 6b8471e460 iio: adxl345: move null check for i2c id at start of probe
Fixes ef89f4b96a ("iio: adxl345: Add support for the ADXL375").

This was found via static checker.
After looking into the code a bit, it's unlikely that there will be a NULL
dereference if the `id` object in that specific code path.
However, it's safe to add a NULL (paranoid) check just to make sure and
remove any uncertainties.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19 18:32:05 +01:00
Stefan Popa f4f55ce38e iio:adxl372: Add FIFO and interrupts support
This patch adds support for the adxl372 FIFO. In order to accomplish this,
triggered buffers were used.

The number of FIFO samples which trigger the watermark interrupt can be
configured by using the buffer watermark. The FIFO format is determined by
configuring the scan elements for each axis. The FIFO data is pushed to the
IIO device's buffer.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19 18:13:02 +01:00
Stefan Popa 4097da40f9 iio: adxl372: New driver for Analog Devices ADXL372 Accelerometer
This patch adds basic support for Analog Devices ADXL372 SPI-Bus
Three-Axis Digital Accelerometer.

The device is probed and configured the with some initial default
values. With this basic driver, it is possible to read raw acceleration
data.

Datasheet:
http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL372.pdf

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19 18:02:22 +01:00
Greg Kroah-Hartman 3ceefa3ffd Second set of IIO new device support, features and cleanups.
There are also a couple of fixes that can wait for the coming merge
 window.
 
 Core new features
 
 * Support for phase channels (used in time of flight sensors amongst
   other things)
 * Support for deep UV light channel modifier.
 
 New Device Support
 
 * AD4758 DAC
   - New driver and dt bindings.
 * adxl345
   - Support the adxl375 +-200g part which is register compatible.
 * isl29501 Time of flight sensor.
   - New driver
 * meson-saradc
   - Support the Meson8m2 Socs - right now this is just an ID, but there will
     be additional difference in future.
 * mpu6050
   - New ID for 6515 variant.
 * si1133 UV sensor.
   - New driver
 * Spreadtrum SC27xx PMIC ADC
   - New driver and dt bindings.
 
 Features
 
 * adxl345
   - Add calibration offset readback and writing.
   - Add sampling frequency control.
 
 Fixes and Cleanups
 
 * ad5933
   - Use a macro for the channel definition to reduce duplication.
 * ad9523
   - Replace use of core mlock with a local lock. Part of ongoing efforts
     to avoid confusing the purpose of mlock which is only about iio core
     state changes.
   - Fix displayed phase which was out by a factor of 10.
 * adxl345
   - Add a link to the datasheet.
   - Rework the use of the address field in the chan_spec structures to
     allow addition of more per channel information.
 * adis imu
   - Mark switch fall throughs.
 * at91-sama5d2
   - Fix some casting on big endian systems.
 * bmp280
   - Drop some DT elements that aren't used and should mostly be done from
     userspace rather than in DT.
 * hx711
   - add clock-frequency dt binding and resulting delay to deal with capacitance
     issue on some boards.
   - fix a spurious unit-address in the example.
 * ina2xx
   - Avoid a possible kthread_stop with a stale task_struct.
 * ltc2632
   - Remove some unused local variables (assigned but value never used).
 * max1363
   - Use device_get_match_data to remove some boilerplate.
 * mma8452
   - Mark switch fall throughs.
 * sca3000
   - Fix a missing return in a switch statement (a bad fallthrough
     previously!)
 * sigma-delta-modulator
   - Drop incorrect unit address from the DT example.
 * st_accel
   - Use device_get_match_data to drop some boiler plate.
   - Move to probe_new for i2c driver as second parameter not used.
 * st_sensors library
   - Use a strlcpy (safe in this case).
 * st_lsm6dsx
   - Add some error logging.
 * ti-ads7950
   - SPDX
   - Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
     EV3 where some channels are used for power supply monitoring at a very low
     rate.
 * ti-dac5571
   - Remove an unused variable.
 * xadc
   - Drop some dead code.
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Merge tag 'iio-for-4.19b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new device support, features and cleanups.

There are also a couple of fixes that can wait for the coming merge
window.

Core new features

* Support for phase channels (used in time of flight sensors amongst
  other things)
* Support for deep UV light channel modifier.

New Device Support

* AD4758 DAC
  - New driver and dt bindings.
* adxl345
  - Support the adxl375 +-200g part which is register compatible.
* isl29501 Time of flight sensor.
  - New driver
* meson-saradc
  - Support the Meson8m2 Socs - right now this is just an ID, but there will
    be additional difference in future.
* mpu6050
  - New ID for 6515 variant.
* si1133 UV sensor.
  - New driver
* Spreadtrum SC27xx PMIC ADC
  - New driver and dt bindings.

Features

* adxl345
  - Add calibration offset readback and writing.
  - Add sampling frequency control.

Fixes and Cleanups

* ad5933
  - Use a macro for the channel definition to reduce duplication.
* ad9523
  - Replace use of core mlock with a local lock. Part of ongoing efforts
    to avoid confusing the purpose of mlock which is only about iio core
    state changes.
  - Fix displayed phase which was out by a factor of 10.
* adxl345
  - Add a link to the datasheet.
  - Rework the use of the address field in the chan_spec structures to
    allow addition of more per channel information.
* adis imu
  - Mark switch fall throughs.
* at91-sama5d2
  - Fix some casting on big endian systems.
* bmp280
  - Drop some DT elements that aren't used and should mostly be done from
    userspace rather than in DT.
* hx711
  - add clock-frequency dt binding and resulting delay to deal with capacitance
    issue on some boards.
  - fix a spurious unit-address in the example.
* ina2xx
  - Avoid a possible kthread_stop with a stale task_struct.
* ltc2632
  - Remove some unused local variables (assigned but value never used).
* max1363
  - Use device_get_match_data to remove some boilerplate.
* mma8452
  - Mark switch fall throughs.
* sca3000
  - Fix a missing return in a switch statement (a bad fallthrough
    previously!)
* sigma-delta-modulator
  - Drop incorrect unit address from the DT example.
* st_accel
  - Use device_get_match_data to drop some boiler plate.
  - Move to probe_new for i2c driver as second parameter not used.
* st_sensors library
  - Use a strlcpy (safe in this case).
* st_lsm6dsx
  - Add some error logging.
* ti-ads7950
  - SPDX
  - Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
    EV3 where some channels are used for power supply monitoring at a very low
    rate.
* ti-dac5571
  - Remove an unused variable.
* xadc
  - Drop some dead code.
2018-07-25 10:12:07 +02:00
Gustavo A. R. Silva c5b974bee9 iio: sca3000: Fix missing return in switch
The IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY case is missing a
return and will fall through to the default case and errorenously
return -EINVAL.

Fix this by adding in missing *return ret*.

Fixes: 626f971b5b ("staging:iio:accel:sca3000 Add write support to the low pass filter control")
Reported-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-24 18:17:18 +01:00
Lars-Peter Clausen ef89f4b96a iio: adxl345: Add support for the ADXL375
The ADXL375 is fully register map compatible to the ADXL345 (including the
device ID register returning the same value ...).

The only difference is the resolution of the acceleration sensor. The
ADXL375 can measure up to +-200g of acceleration.

Datasheet:
http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL375.PDF

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15 10:18:15 +01:00
Akinobu Mita 382fa58125 iio: accel: adxl345: add sampling frequency support
The ADXL345 provides selectable output data rate.  This adds the iio
channel information for the sampling frequency with that feature.

Cc: Eva Rachel Retuya <eraretuya@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15 09:19:06 +01:00
Gustavo A. R. Silva e161ef7c3c iio: mma8452: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Warning level 2 was used in this case: -Wimplicit-fallthrough=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07 18:04:08 +01:00
Nikolaus Voss 6b0b3e378e IIO: st_accel_i2c.c: Use probe_new() instead of probe()
struct i2c_device_id argument of probe() is not used, so use probe_new()
instead.

Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07 17:33:18 +01:00
Nikolaus Voss 19868faad4 IIO: st_accel_i2c.c: Simplify access to driver data
Use device_get_match_data API to simplify access to driver data.
Let acpi_device_id table entries point to the same driver data as
of_device_id table entries and uniquify access to driver data by using
device_get_match_data API. Remove unused i2c_device_id .driver_data
fields.

Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07 17:32:51 +01:00
Akinobu Mita 732238e22e iio: accel: adxl345: add calibration offset support
The ADXL345 provides the offset adjustment registers for each axis.
This adds the iio channel information for the calibraion offsets with
that feature.

Cc: Eva Rachel Retuya <eraretuya@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-30 18:27:27 +01:00
Akinobu Mita 9048f1f18a iio: accel: adxl345: convert address field usage in iio_chan_spec
Currently the address field in iio_chan_spec is filled with an accel
data register address for the corresponding axis.

In preparation for adding calibration offset support, this sets the
address field to the index of accel data registers instead of the actual
register address.

This change makes it easier to access both accel registers and
calibration offset registers with fewer lines of code as these are
located in X-axis, Y-axis, Z-axis order.

Cc: Eva Rachel Retuya <eraretuya@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-30 18:25:05 +01:00
Akinobu Mita 4b5de1fa97 iio: accel: adxl345: add link to datasheet
Add a link to the ADXL345 datasheet

Cc: Eva Rachel Retuya <eraretuya@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-30 18:23:42 +01:00
Leonard Crestez b02ec67a8e iio: mma8452: Fix ignoring MMA8452_INT_DRDY
Interrupts are ignored if no event bit is set in the status status
register and this breaks the buffer interface. No data is shown when
running "iio_generic_buffer -n mma8451 -a" and interrupt counts go
crazy.

Fix by not returning IRQ_NONE if DRDY is set.

Fixes: 605f72de13 ("iio: accel: mma8452: improvements to handle
multiple events")

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-24 14:22:41 +01:00
Richard Tresidder a45d123887 iio: accell: mma8452: Reduce sleep time when data not ready
Modified the sleep method when data is not ready to allow for sampling > 50sps to work.

Signed-off-by: Richard Tresidder <rtresidd@electromag.com.au>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-12 12:12:13 +01:00
Greg Kroah-Hartman 6a8b25abf1 1st round of IIO new device support, features and cleanup for the 4.18 cycle
A nice mix this time of excellent cleanups (many to send drivers
 speeding toward staging graduations) and new drivers / device support.
 A good part of this is Brian Masney's never ending task on the tsl2x7x
 driver.  The end is in sight so hopefully we'll get that one out of
 staging very soon!
 
 New device support
 * AD5686
   - Support AD5685R (was wrongly present as AD5685)
   - Support AD5672R, AD5676, AD5676, AD5684R and AD5686R 4 and 8 channel
     SPI DACs with various precisions.
   - Support AD5671R, AD5675R, AD5694, AD5694R, AD5695R, AD5696 and AD5696R
     I2C DACs with various percisions and numbers of channels.
 * Analog front end rescale driver - New driver.
   - Support current sensing usings a shunt resistor.
   - Support simple voltage dividers.
   - support simple current sense amplifiers.
 * TI dac5571
   - New driver and device bindings supporting:
     dac5571, dac6571, dac7571, dac5574, dac6574, dac7574,
     dac5573, dac6573 and dac7573
 * Meson-adc
   - Support for Meson AXG with DT bindings.
 * mpu6050
   - Support the mpu9255 which only requires additional WHOAMI entry and
     compatible string.
 * st_lsm6dsx
   - Support for lsm330dlc combinded accelerometer and gyro sensors with
     DT bindings.
 * stm32_adc
   - Add support for STM32MP1 with bindings.
 
 Staging graduations
 * adis16201 after some excelent cleanup by Himanshu Jha.
 * adis16029 after some excelent cleanup by Shreeya Patel.
 
 New features:
 * ABI docs
   - Add core ABI docs for angle channels.
 * inv_mpu6050
   - Provide support for the full range of interrupts the device
     supports.
 * st_accel
   - Add SMO8840 ACPI ID seen in the wild on some Lenovo machines.
 * stx104
   - Provide a multiple gpio get function.
 
 Cleanups / Minor fixes
 * core
   - Use new nested structure support to improve kernel-doc.
 * ad2s1200
   - Use be16_to_cpup instead of opencoding.
 * ad5686
   - Indentation tidy up.
   - Switch to SPDX
   - Refactor to allow various numbers of channels.
   - Refactor to separate core and SPI specific support, prior to
     addition of i2c equivalent devices.
 * ad7606
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * ad7746
   - Replace opencoded byte swapped i2c calls with _swapped variants.
   - White space and line break readability improvements.
   - Reorder includes and variable declarations where appropriate.
 * ad7791
   - Changes to the AD ADC library used by this driver took in the
     sampling frequency.  This lead to be the wrong path being the one
     tied to the resulting attribute, so it didn't work, and a warning
     to be printed.
 * ad7780
   - Remove apparent support for sampling frequency control on devices
     that don't support changing the sampling attributes.
 * ade7854
   - Fix a read of the wrong number of bits.
   - Improve error handling on i2c read/write errors.
   - Rework i2c and spi code to reduce duplication.
 * adis16201 (staging)
   - Improve meaning inherent in some macro names by adding units etc
     where relevant.
   - Adjust comments to improve detail and drop the irrelevant.
   - Rename register address definitions definitions to add a _REG
     postfix, clearly separating them from field definitions. Reorganize
     the definitions to group register address and fields.
   - Use sign_extend32 rather than open coding.
   - Reverse Xmas tree ordering where appropriate and align function args.
   - Remove unused headers.
   - Use GENMASK where appropriate instead of open coding.
 * adis16209 (staging)
   - Indent field definitions to visually separate them from
     register address definitions.
   - Use reverse xmas tree ordering where appropriate.
   - Add some whitespace where it will help readability.
   - Drop some unused headers.
   - Use GENMASK where appropriate.
 * ad2s1200
   - Drop unnecessary includes and reorder alphabetically.
   - Reverse xmas tree and blank line cleanups.
 * atlas-ph-sensor
   - Use msleep instead of usleep_range where the precise value doesn't
     matter and the delays are long.
 * bcm150
   - Drop transaction splitting as core now handles it.
 * cros_ec
   - Move the shared header to the include/iio/common directory.
     This brings it inline with the other multiple type devices.
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * hid-sensors
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * inv_mpu6050
   - Clear out a second function definition for the same function.
   - Don't flush fifo when the iio buffer is full but just drop excess
     data.
   - Tidy up set_power_itg and ensure it is used in the right places.
   - Use set_power_itg rather than opencoding it again in the i2c mux
     control.
   - Make sure error paths disable the power if undoing power on.
   - Used managed devm_ functions during probe. Delete remove function.
   - Refactor to pull raw data read out of read_raw function.
   - Simplify data reading error paths.
   - Only enable the i2c mux for chips with the i2c aux bus (not icm20608)
   - Fix a potential deadlock due to varying lock ordering.
   - Fix an issue where first sample from gyro after enabling is unstable
     by dropping the first sample.
   - Fix an issue where the user_ctrl register is incorrectly overwritten.
   - Tidy up some grammar and spelling minor issus.
 * mcp320x
   - Use vendor compatible strings.
 * mcp4018
   - Switch to using i2c .probe_new.
 * mcp4351
   - switch to using i2c .probe_new.
 * meson-adc
   - rework handing on common ADC platform data so it can be shared
     across multiple families of SoCs.
 * sca3000
   - Fix an error handling path if the ring configure fails.
 * st_lsm6dsx
   - Fix a wrong fifo threshold mask (no actual effect)
 * stm32-dfsdm
   - Style fixes and cleanups.
   - Check filter ID is in range and check spi-max-frequency.
 * tsl2x7x (staging)
   - Drop some unnecessary function calls, unused variables and
     unnecessary local variables.
   - Fix wrong interrupt type.
   - Avoid unnecessary double clear of interrupt.
   - Simplify proximity calibration call which did various things
     unrelated to actually calibrating.
   - Separate control of the proximity and ALS interrupts.
   - Improve consistency of logging.
   - Separate ALS and proximity persistence settings as they have
     separate hardware controls.
   - Tidy up variable ordering.
   - Add Brian to copyright notice given consider work on this driver.
   - Take advantage of hardware support for I2C address auto increment.
   - Combine individuaal enable and period attributes for the two
     directions on the threshold events into a single value as the
     hardware doesn't separate them.
   - Move integration_time* attributes from light channel to
     intensity value as they effect the intensity readings directly
     and the light reading only indirectly.  Hence this better
     reflects reality. Also move the calibscale_available.
   - Avoid returning an error in the IRQ handler.
   - Hard code the reg value in _clear_interrupts as it only takes
     one value in the code.   Result is the function has little
     purpose so opencode the two remaining i2c_smbus_write_byte
     calls.
   - Drop some unnecessary checking of the chip status register.
   - Tidy up return path in _write_interrupt_config.
   - Tidy up the ID verification code.
   - Move the power and diode settings defines into the header as these
     are needed for platform data configuration.
   - Various renames and comment cleanups for consistency and clarity.
   - Use actual device defaults for default startup settings.
   - SPDX
   - Add some range sanity checking to sysfs attribute writes.
   - Don't provide event interfaces if the interrupt line isn't available.
   - Use IIO_CONST_ATTR macro for calibscale_available as it's a constant
     string.
   - Fix the integration time and lux equations.
   - Make device IDs explicit index values in the device_channel_config array.
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Merge tag 'iio-for-4.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st round of IIO new device support, features and cleanup for the 4.18 cycle

A nice mix this time of excellent cleanups (many to send drivers
speeding toward staging graduations) and new drivers / device support.
A good part of this is Brian Masney's never ending task on the tsl2x7x
driver.  The end is in sight so hopefully we'll get that one out of
staging very soon!

New device support
* AD5686
  - Support AD5685R (was wrongly present as AD5685)
  - Support AD5672R, AD5676, AD5676, AD5684R and AD5686R 4 and 8 channel
    SPI DACs with various precisions.
  - Support AD5671R, AD5675R, AD5694, AD5694R, AD5695R, AD5696 and AD5696R
    I2C DACs with various percisions and numbers of channels.
* Analog front end rescale driver - New driver.
  - Support current sensing usings a shunt resistor.
  - Support simple voltage dividers.
  - support simple current sense amplifiers.
* TI dac5571
  - New driver and device bindings supporting:
    dac5571, dac6571, dac7571, dac5574, dac6574, dac7574,
    dac5573, dac6573 and dac7573
* Meson-adc
  - Support for Meson AXG with DT bindings.
* mpu6050
  - Support the mpu9255 which only requires additional WHOAMI entry and
    compatible string.
* st_lsm6dsx
  - Support for lsm330dlc combinded accelerometer and gyro sensors with
    DT bindings.
* stm32_adc
  - Add support for STM32MP1 with bindings.

Staging graduations
* adis16201 after some excelent cleanup by Himanshu Jha.
* adis16029 after some excelent cleanup by Shreeya Patel.

New features:
* ABI docs
  - Add core ABI docs for angle channels.
* inv_mpu6050
  - Provide support for the full range of interrupts the device
    supports.
* st_accel
  - Add SMO8840 ACPI ID seen in the wild on some Lenovo machines.
* stx104
  - Provide a multiple gpio get function.

Cleanups / Minor fixes
* core
  - Use new nested structure support to improve kernel-doc.
* ad2s1200
  - Use be16_to_cpup instead of opencoding.
* ad5686
  - Indentation tidy up.
  - Switch to SPDX
  - Refactor to allow various numbers of channels.
  - Refactor to separate core and SPI specific support, prior to
    addition of i2c equivalent devices.
* ad7606
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* ad7746
  - Replace opencoded byte swapped i2c calls with _swapped variants.
  - White space and line break readability improvements.
  - Reorder includes and variable declarations where appropriate.
* ad7791
  - Changes to the AD ADC library used by this driver took in the
    sampling frequency.  This lead to be the wrong path being the one
    tied to the resulting attribute, so it didn't work, and a warning
    to be printed.
* ad7780
  - Remove apparent support for sampling frequency control on devices
    that don't support changing the sampling attributes.
* ade7854
  - Fix a read of the wrong number of bits.
  - Improve error handling on i2c read/write errors.
  - Rework i2c and spi code to reduce duplication.
* adis16201 (staging)
  - Improve meaning inherent in some macro names by adding units etc
    where relevant.
  - Adjust comments to improve detail and drop the irrelevant.
  - Rename register address definitions definitions to add a _REG
    postfix, clearly separating them from field definitions. Reorganize
    the definitions to group register address and fields.
  - Use sign_extend32 rather than open coding.
  - Reverse Xmas tree ordering where appropriate and align function args.
  - Remove unused headers.
  - Use GENMASK where appropriate instead of open coding.
* adis16209 (staging)
  - Indent field definitions to visually separate them from
    register address definitions.
  - Use reverse xmas tree ordering where appropriate.
  - Add some whitespace where it will help readability.
  - Drop some unused headers.
  - Use GENMASK where appropriate.
* ad2s1200
  - Drop unnecessary includes and reorder alphabetically.
  - Reverse xmas tree and blank line cleanups.
* atlas-ph-sensor
  - Use msleep instead of usleep_range where the precise value doesn't
    matter and the delays are long.
* bcm150
  - Drop transaction splitting as core now handles it.
* cros_ec
  - Move the shared header to the include/iio/common directory.
    This brings it inline with the other multiple type devices.
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* hid-sensors
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* inv_mpu6050
  - Clear out a second function definition for the same function.
  - Don't flush fifo when the iio buffer is full but just drop excess
    data.
  - Tidy up set_power_itg and ensure it is used in the right places.
  - Use set_power_itg rather than opencoding it again in the i2c mux
    control.
  - Make sure error paths disable the power if undoing power on.
  - Used managed devm_ functions during probe. Delete remove function.
  - Refactor to pull raw data read out of read_raw function.
  - Simplify data reading error paths.
  - Only enable the i2c mux for chips with the i2c aux bus (not icm20608)
  - Fix a potential deadlock due to varying lock ordering.
  - Fix an issue where first sample from gyro after enabling is unstable
    by dropping the first sample.
  - Fix an issue where the user_ctrl register is incorrectly overwritten.
  - Tidy up some grammar and spelling minor issus.
* mcp320x
  - Use vendor compatible strings.
* mcp4018
  - Switch to using i2c .probe_new.
* mcp4351
  - switch to using i2c .probe_new.
* meson-adc
  - rework handing on common ADC platform data so it can be shared
    across multiple families of SoCs.
* sca3000
  - Fix an error handling path if the ring configure fails.
* st_lsm6dsx
  - Fix a wrong fifo threshold mask (no actual effect)
* stm32-dfsdm
  - Style fixes and cleanups.
  - Check filter ID is in range and check spi-max-frequency.
* tsl2x7x (staging)
  - Drop some unnecessary function calls, unused variables and
    unnecessary local variables.
  - Fix wrong interrupt type.
  - Avoid unnecessary double clear of interrupt.
  - Simplify proximity calibration call which did various things
    unrelated to actually calibrating.
  - Separate control of the proximity and ALS interrupts.
  - Improve consistency of logging.
  - Separate ALS and proximity persistence settings as they have
    separate hardware controls.
  - Tidy up variable ordering.
  - Add Brian to copyright notice given consider work on this driver.
  - Take advantage of hardware support for I2C address auto increment.
  - Combine individuaal enable and period attributes for the two
    directions on the threshold events into a single value as the
    hardware doesn't separate them.
  - Move integration_time* attributes from light channel to
    intensity value as they effect the intensity readings directly
    and the light reading only indirectly.  Hence this better
    reflects reality. Also move the calibscale_available.
  - Avoid returning an error in the IRQ handler.
  - Hard code the reg value in _clear_interrupts as it only takes
    one value in the code.   Result is the function has little
    purpose so opencode the two remaining i2c_smbus_write_byte
    calls.
  - Drop some unnecessary checking of the chip status register.
  - Tidy up return path in _write_interrupt_config.
  - Tidy up the ID verification code.
  - Move the power and diode settings defines into the header as these
    are needed for platform data configuration.
  - Various renames and comment cleanups for consistency and clarity.
  - Use actual device defaults for default startup settings.
  - SPDX
  - Add some range sanity checking to sysfs attribute writes.
  - Don't provide event interfaces if the interrupt line isn't available.
  - Use IIO_CONST_ATTR macro for calibscale_available as it's a constant
    string.
  - Fix the integration time and lux equations.
  - Make device IDs explicit index values in the device_channel_config array.
2018-05-11 09:50:04 +02:00
Charles Keepax 5cb0789de1 iio: accel: bcm150: Remove handling for regmap raw_read_max
The regmap core now handles splitting up transactions according to
max_raw_read, so this code is no longer required in client drivers.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-04-28 17:01:55 +01:00
Hans de Goede 3d56e19815 iio: accel: st_accel: Add support for the SMO8840 ACPI id
The Lenovo Ideapad Miix 320 uses an st accelerometer with an ACPI id
of SMO8840, add support for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-04-21 16:29:24 +01:00
Christophe JAILLET da2d54494c iio: sca3000: Handle errors returned by 'sca3000_configure_ring()' in 'sca3000_probe()'
'sca3000_configure_ring()' can fail, so test its return value and
propagate it if needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-04-15 20:18:25 +01:00
Christophe JAILLET 4a5b45383c iio: sca3000: Fix an error handling path in 'sca3000_probe()'
Use 'devm_iio_kfifo_allocate()' instead of 'iio_kfifo_allocate()' in order
to simplify code and avoid a memory leak in an error path in
'sca3000_probe()'. A call to 'sca3000_unconfigure_ring()' was missing.

Sent via the next merge window as unimportant bug and there are
other patches dependent on it.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-04-15 20:15:55 +01:00
Shreeya Patel 524c762844 Staging: iio: adis16209: Move adis16209 driver out of staging
Move the adis16209 driver out of staging directory and merge to the
mainline IIO subsystem.

Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-30 13:50:36 +01:00
Greg Kroah-Hartman a0306db6e5 Merge 4.16-rc7 into staging-next
We want the IIO and staging driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28 13:33:37 +02:00
Himanshu Jha 591298e54c Staging: iio: accel: adis16201: Move adis16201 driver out of staging
Move adis16201 driver out of staging and merge into mainline
IIO subsystem.

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-24 14:26:19 +00:00
Michael Nosthoff 8b438686a0 iio: st_pressure: st_accel: pass correct platform data to init
Commit 7383d44b added a pointer pdata which get set to the default
platform_data when non was defined in the device. But it did not
pass this pointer to the st_sensors_init_sensor call but still
used the maybe uninitialized platform_data from dev.

This breaks initialization when no platform_data is given and
the optional st,drdy-int-pin devicetree option is not set.

This commit fixes this.

Cc: stable@vger.kernel.org
Fixes: 7383d44b ("iio: st_pressure: st_accel: Initialise sensor platform data properly")
Signed-off-by: Michael Nosthoff <committed@heine.so>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-10 16:28:05 +00:00
Jonathan Cameron cc4e003631 Revert "iio: accel: st_accel: remove redundant pointer pdata"
This reverts commit 585ed27d06.

This removed code which was unused due to a bug in commit 7383d44b.
To fix this bug the code is needed. Thus this revert.

Signed-off-by: Michael Nosthoff <committed@heine.so>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-10 16:21:32 +00:00
Rodrigo Siqueira 67464a54e5 iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO_RAW
Usually, functions responsible for reading raw data typically relies on
values from iio_chan_info_enum to correctly identify the type of data to
be read. There is a set of a device driver that uses the magic number 0
instead of IIO_CHAN_INFO_RAW. This patch improves the readability by
replaces the magic number 0 for the appropriate IIO_CHAN_INFO_RAW in six
devices driver in the IIO subsystem.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-07 20:14:36 +00:00
Andy Shevchenko 1b3079a721 iio: accel: bmc150: Remove redundant __func__ in dev_dbg()
Dynamic debug has a run time knob to enable function name printing.
Remove this from dev_dbg() calls.

Furthermore, functional tracing when enabled can show what function is
called, therefore remove empty dev_dbg() calls.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-02-24 13:29:36 +00:00
Xiongfeng Wang cb60610af5 iio: accel: use strlcpy() instead of strncpy()
gcc-8 reports

drivers/iio/accel/st_accel_i2c.c: In function 'st_accel_i2c_probe':
./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified
bound 20 equals destination size [-Wstringop-truncation]

The compiler require that the length of the dest string is greater than
the length we want to copy to make sure the dest string is
nul-terminated. We can just use strlcpy() to avoid this warning.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-01-30 18:33:14 +00:00
Martin Kepplinger 80e3f0103e iio: mma8452: replace license description with SPDX specifier
This replaces the custom license information text with the appropriate
SPDX identifier. While the information here stays the same, it is easier
to read.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Acked-by: Harinath Nampally <harinath922@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08 16:03:41 +01:00
Javier Martinez Canillas 798c3c9b4c iio: accel: bmc150: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

The I2C device ID table entries have the .driver_data field set, but they
are not used in the driver so weren't set in the OF device table entries.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 11:59:33 +00:00
Colin Ian King 585ed27d06 iio: accel: st_accel: remove redundant pointer pdata
Pointer pdata is being assigned but it is never being used, hence
it is redundant and can be removed. Cleans up clang warning:

drivers/iio/accel/st_accel_core.c:952:3: warning: Value stored to 'pdata'
is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:41:38 +00:00
Luke Ross 4c42bef0d3 iio:accel:da280: Linx 820 Windows tablet has a da280 mapped via ACPI
This adds an ACPI table to the driver and the ACPI ID of the sensor
on the tablet.

Signed-off-by: Luke Ross <luke@lukeross.name>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:41:33 +00:00
Harinath Nampally a654c062dc iio: accel: mma8452: Rename config structs for readability
Rename structs holding event configuration registers
to more appropriate names. This naming is consistent
with the event config register names given in the
mma845x and fxls8471 datasheets.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:39:56 +00:00
Harinath Nampally cc54a660a6 iio: accel: mma8452: Rename a struct for code readibility
Rename time step look up struct to generic name
as the values in the look table are same for all
the other events like pulse, transient etc.

Signed-off-by: Harinath Nampally <harinath922@gmail.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:39:54 +00:00