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path: root/drivers/iio
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2018-09-02iio: Convert to using %pOFn instead of device_node.nameRob Herring
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-iio@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-02iio: adc: qcom-spmi-adc5: Verify channel numbers from DTMatthias Kaehlcke
The driver only defines a subset of all possible ADC channels. Channel numbers read from the device tree are accepted as long as they don't exceed a max value, even when no channel definition exists. Add a check to abort initialization in this case. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-02Revert "iio: temperature: maxim_thermocouple: add MAX31856 part"Matt Ranostay
This reverts commit 535fba29b3e1afef4ba201b3c69a6992583ec0bd. Seems the submitter (er me, hang head in shame) didn't look at the datasheet enough to see that the registers are quite different. This needs to be reverted because a) would never work b) to open it be added to a Maxim RTDs (Resistance Temperature Detectors) under development by author Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-02iio: light: isl29501: Simplify code to kill compiler warningGeert Uytterhoeven
With gcc 4.1.2: drivers/iio/proximity/isl29501.c: In function ‘isl29501_register_write’: drivers/iio/proximity/isl29501.c:235: warning: ‘msb’ may be used uninitialized in this function While this is a false positive, it can easily be avoided by removing the "msb" intermediate variable. Remove the "lsb" intermediate variable for consistency. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-02iio: adc: sc27xx: Add ADC scale calibrationBaolin Wang
This patch adds support to read calibration values from the eFuse controller to calibrate the ADC channel scales, which can make ADC sample data more accurate. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-02iio: adc: sc27xx: Add raw data supportBaolin Wang
The headset device will use channel 20 of ADC controller to detect events, but it needs the raw ADC data to do conversion according to its own formula. Thus we should configure the channel mask separately and configure channel 20 as IIO_CHAN_INFO_RAW, as well as adding raw data read support. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25iio: dac: ti-dac5571: provide of_match_table to driverMarcus Folkesson
Use the created list of of_device_id's as a match table. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25iio: dac: mcp4922: fix error handling in mcp4922_write_rawMarcus Folkesson
Do not try to write negative values and make sure that the write goes well. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25iio: dac: add support for ltc1660Marcus Folkesson
LTC1665/LTC1660 is a 8/10-bit Digital-to-Analog Converter (DAC) with eight individual channels. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-25iio:adxl372: Add filter bandwidth supportStefan Popa
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>
2018-08-25iio:adxl372: Add sampling frequency supportStefan Popa
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>
2018-08-25iio: adxl372: Provide validate_trigger and validate_device callbacksStefan Popa
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>
2018-08-25iio: chemical: bme680: Remove field value definesDavid Frey
Remove BME680_RUN_GAS_EN_BIT and BME680_NB_CONV_0_VAL field value definitions because the fields are simply boolean and integer respectively. Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-23treewide: convert ISO_8859-1 text comments to utf-8Arnd Bergmann
Almost all files in the kernel are either plain text or UTF-8 encoded. A couple however are ISO_8859-1, usually just a few characters in a C comments, for historic reasons. This converts them all to UTF-8 for consistency. Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Simon Horman <horms@verge.net.au> [IPVS portion] Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [IIO] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Rob Herring <robh@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-21Merge branch 'i2c/for-4.19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: - the core has now a lockless variant of i2c_smbus_xfer. Some open coded versions of this got removed in drivers. This also enables proper SCCB support in regmap. - locking got a more precise naming. i2c_{un}lock_adapter() had to go, and we know use i2c_lock_bus() consistently with flags like I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity. - the gpio fault injector got a new delicate testcase - the bus recovery procedure got fixed to handle the new testcase correctly - a new quirk flag for controllers not able to handle zero length messages together with driver updates to use it - new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl family S900 - and a good set of driver improvements and bugfixes * 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits) i2c: rcar: implement STOP and REP_START according to docs i2c: rcar: refactor private flags i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes dt-bindings: i2c: rcar: Add r8a774a1 support dt-bindings: i2c: sh_mobile: Add r8a774a1 support i2c: imx: Simplify stopped state tracking i2c: imx: Fix race condition in dma read i2c: pasemi: remove hardcoded bus numbers on smbus i2c: designware: Add SPDX license tag i2c: designware: Convert to use struct i2c_timings i2c: core: Parse SDA hold time from firmware i2c: designware-pcidrv: Mark expected switch fall-through i2c: amd8111: Mark expected switch fall-through i2c: sh_mobile: use core to detect 'no zero length read' quirk i2c: xlr: use core to detect 'no zero length' quirk i2c: rcar: use core to detect 'no zero length' quirk i2c: stu300: use core to detect 'no zero length' quirk i2c: pmcmsp: use core to detect 'no zero length' quirk i2c: mxs: use core to detect 'no zero length' quirk ...
2018-08-20iio: multiplexer: switch to SPDX license identifierPeter Rosin
Drop the boilerplate license text. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-20iio: dpot-dac: switch to SPDX license identifierPeter Rosin
Drop the boilerplate license text. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-20iio: envelope-detector: switch to SPDX license identifierPeter Rosin
Drop the boilerplate license text. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-20iio: potentiometer: mcp4531: switch to SPDX license identifierPeter Rosin
Drop the boilerplate license text and use the correct MODULE_LICENSE. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-20iio: potentiometer: mcp4018: use the correct MODULE_LICENSEPeter Rosin
The file is GPL v2 only. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: potentiometer: merge calls to of_match_device and of_device_get_match_dataJulia Lawall
Drop call to of_match_device, which is subsumed by the subsequent call to of_device_get_match_data. The code becomes simpler, and a temporary variable can be dropped. The semantic match that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ local idexpression match; identifier i; expression x, dev, e, e1; @@ - match@i = of_match_device(x, dev); - if (match) e = of_device_get_match_data(dev); - else e = e1; + e = of_device_get_match_data(dev); + if (!e) e = e1; @@ identifier r.i; @@ - const struct of_device_id *i; ... when != i // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Peter Rosin <peda@axentia.se> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: Add check for val2 in the write_raw functionHimanshu Jha
val2 is responsible for the floating part of the number to be written to the device. We don't need the floating part while writing the oversampling ratio for BME680 since the available oversampling ratios are pure natural numbers. So, add a sanity check to make sure val2 is 0. Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: adc: add support for mcp3911Marcus Folkesson
MCP3911 is a dual channel Analog Front End (AFE) containing two synchronous sampling delta-sigma Analog-to-Digital Converters (ADC). Co-developed-by: Kent Gustavsson <kent@minoris.se> Signed-off-by: Kent Gustavsson <kent@minoris.se> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: adxl345: move null check for i2c id at start of probeAlexandru Ardelean
Fixes ef89f4b96a2 ("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>
2018-08-19iio: max44000: remove unused variable max44000_alstim_shiftColin Ian King
Variable max44000_alstim_shift is defined but is never used hence it is redundant and can be removed. This variable has been like this since the driver was added back in 2016. Cleans up clang warning: warning: 'max44000_alstim_shift' defined but not used [-Wunused-const-variable=] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio:adxl372: Add FIFO and interrupts supportStefan Popa
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>
2018-08-19iio: adxl372: New driver for Analog Devices ADXL372 AccelerometerStefan Popa
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>
2018-08-19iio: adc: qcom-spmi-adc5: Add ADC5_AMUX_THM[24]_100K_PU to rev2 channel listMatthias Kaehlcke
Add ADC5_AMUX_THM2_100K_PU and ADC5_AMUX_THM4_100K_PU to the list of rev2 ADC channels. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: adc: max9611: explicitly cast gain_selectorsStefan Agner
After finding a reasonable gain, the function converts the configured gain to a gain configuration option selector enum max9611_csa_gain. Make the conversion clearly visible by using an explicit cast. This also avoids a warning seen with clang: drivers/iio/adc/max9611.c:292:16: warning: implicit conversion from enumeration type 'enum max9611_conf_ids' to different enumeration type 'enum max9611_csa_gain' [-Wenum-conversion] *csa_gain = gain_selectors[i]; ~ ^~~~~~~~~~~~~~~~~ Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: dac: mcp4725: avoid using CONFIG_PM_SLEEPMarcus Folkesson
This is already handled by SIMPLE_DEV_PM_OPS(). Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: dac: max5821: avoid using CONFIG_PM_SLEEPMarcus Folkesson
This is already handled by SIMPLE_DEV_PM_OPS(). Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: dac: max517: avoid using CONFIG_PM_SLEEPMarcus Folkesson
This is already handled by SIMPLE_DEV_PM_OPS(). Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19drivers: iio: Update MODULE AUTHOR email addressMichael Hennerich
no functional changes Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: health: max30102: Mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that in this particular case, I placed the "fall through" annotation at the bottom of the case, which is what GCC is expecting to find. Addresses-Coverity-ID: 1458342 ("Missing break in switch") Addresses-Coverity-ID: 1458345 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: pressure: ms5611: remove deprecated compatible stringsTomasz Duszynski
Compatible strings tend to follow manufacturer,model format. In case one wants to do a matching with manufacturer stripped off he can still do so since SPI/I2C core will try id_table based matching anyway. Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: simplify oversampling handlingDavid Frey
Temperature, pressure and humidity all expose and oversampling setting that works in the same way. Provide common handling for the oversampling sysfs attributes. Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: use FIELD_GET macroDavid Frey
Use the FIELD_GET macro instead of explicit mask and shift. Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: use GENMASK macroDavid Frey
Replace hardcoded bit masks with GENMASK macro Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: change MSK->MASK in #definesDavid Frey
Convert all defines to use "MASK" instead of a mix of "MSK" and "MASK" Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: indent #defines consistentlyDavid Frey
Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: cleanup bme680_read_calib formattingDavid Frey
Use the full 80 char width to reduce the number of lines taken by function calls. Remove blank lines where it aids clarity by bringing together related code blocks (such as read hi and low bytes and then combine them into one value). Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: chemical: bme680: use clamp macroDavid Frey
Signed-off-by: David Frey <dpfrey@gmail.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Tested-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: tsl2772: add support for regulator frameworkBrian Masney
This patch adds support for the regulator framework to the tsl2772 driver. Driver was tested using a LG Nexus 5 (hammerhead) phone with the two regulators and on a Raspberry Pi 2 without any regulators controlling the power to the sensor. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: tsl2772: add support for avago,apds9930Brian Masney
The Avago APDS9930 has the same register set as the TAOS/AMS TSL2772 so this patch adds the correct bindings and the appropriate LUX table values derived from the values in the datasheet. Driver was tested on a LG Nexus 5 (hammerhead) phone. avago,apds9930 datasheet: https://www.mouser.com/datasheet/2/678/avago_AV02-3190EN_DS_APDS-9930_2014-03-25[1]-1217273.pdf tsl2772 datasheet: https://ams.com/eng/content/download/291503/1066377/file/TSL2772_DS000181_2-00.pdf Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: tsl2772: add support for reading proximity led settings from device treeBrian Masney
This patch adds support for optionally reading the proximity led diode and current settings from device tree. This was tested using a LG Nexus 5 (hammerhead) which requires a different diode than the driver default for the IR LED. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: imu: mpu6050: add support for regulator frameworkBrian Masney
This patch adds support for the regulator framework to the mpu6050 driver. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Marek <jonathan@marek.ca> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: adc: Add QCOM SPMI PMIC5 ADC driverSiddartha Mohanadoss
This patch adds support for QCOM SPMI PMIC5 family of ADC driver that supports hardware based offset and gain compensation. The ADC peripheral can measure both voltage and current channels whose input signal is connected to the PMIC ADC AMUX. The register set and configuration has been refreshed compared to the prior QCOM PMIC ADC family. Register ADC5 as part of the IIO framework. Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-03iio: chemical: fix spelling mistake "failted" -> "failed"Colin Ian King
fix spelling mistake in dev_err error message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-01iio: light: si1133: fix uninitialized resp variableMaxime Roussin-Bélanger
Read response register to detect any error. Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-01Merge branch 'fixes-togreg' into togregJonathan Cameron