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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 ...
2018-08-01iio: 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
2018-07-30iio: light: si1133 fix test for val being not zero or not one.Colin Ian King
The current check on val always results in true and so the call to sii1133_update_adcsens never gets called. Fix this check so it returns with -EINVAL only when val is not zero and not one. Detected by CoverityScan, CID#1472099 ("Logically dead code") Fixes: e01e7eaf37d8 ("iio: light: introduce si1133") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: adc: xilinx: Move request_irq before enabling interruptsManish Narani
Enabling the Interrupts before registering the irq handler is a bad idea. This patch corrects the same for XADC driver. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: adc: xilinx: Remove platform_get_irq from xadc_remove functionManish Narani
This patch avoids getting irq number in xadc_remove function. Instead store 'irq' in xadc struct and use xadc->irq wherever needed. This patch also resolves a warning reported by coverity where it asks to check return value of platform_get_irq() for any errors in xadc_remove. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: adc: xilinx: limit pcap clock frequency valueManish Narani
This patch limits the xadc pcap clock frequency value to be less than 200MHz. This fixes the issue when zynq is booted at higher frequency values, pcap crosses the maximum limit of 200MHz(Fmax) as it is derived from IOPLL. If this limit is crossed it is required to alter the WEDGE and REDGE bits of XADC_CFG register to make timings better in the interface. So to avoid alteration of these bits every time, the pcap value should not cross the Fmax limit. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: adc: xilinx: Check for return values in clk related functionsManish Narani
This patch adds check for return values from clock related functions. This was reported by static code analysis tool. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: vcnl4000: add support for VCNL4200Tomas Novotny
VCNL4200 is an integrated long distance (up to 1500mm) proximity and ambient light sensor. The support is very basic. There is no configuration of proximity and ambient light sensing yet. Only the reading of both measured values is done. The reading of ambient light and proximity values is blocking. If you request a new value too early, the driver waits for new value to be ready. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: vcnl4000: warn on incorrectly specified device idTomas Novotny
We can detect incorrectly specified device id for some chips, so warn user in that case. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: vcnl4000: add VCNL4010 and VCNL4020 device idTomas Novotny
The driver already supports VCNL4010/20 devices. The currently supported features and detectable product id are the same, so add shared id for them. This is a groundwork to extend the driver by detecting incorrectly specified device id. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29iio: vcnl4000: make the driver extendableTomas Novotny
There are similar chips in the vcnl4xxx family. The initialization and communication is a bit different for members of the family, so this patch makes the driver extendable for different chips. There is no functional change. Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-28iio: ad_sigma_delta: use unsigned long for timeoutNicholas Mc Guire
wait_for_completion_timeout returns unsigned long not int so an appropriate variable is declared and the assignment and check fixed up. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-28iio: chemical: Add support for Bosch BME680 sensorHimanshu Jha
Bosch BME680 is a 4-in-1 sensor with temperature, pressure, humidity and gas sensing capability. It supports both I2C and SPI communication protocol for effective data communication. The device supports two modes: 1. Sleep mode 2. Forced mode The measurements only takes place when forced mode is triggered and a single TPHG cycle is performed by the sensor. The sensor automatically goes to sleep after afterwards. The device has various calibration constants/parameters programmed into devices' non-volatile memory(NVM) during production and can't be altered by the user. These constants are used in the compensation functions to get the required compensated readings along with the raw data. The compensation functions/algorithms are provided by Bosch Sensortec GmbH via their API[1]. As these don't change during the measurement cycle, therefore we read and store them at the probe. The default configs supplied by Bosch are also set at probe. 0-day tested with build success. GSoC-2018: https://summerofcode.withgoogle.com/projects/#6691473790074880 Mentor: Daniel Baluta [1] https://github.com/BoschSensortec/BME680_driver Datasheet: https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BME680-DS001-00.pdf Note from Jonathan: The compensation functions are 'interesting' and could do with a tidy up in future. However, they work so we can leave that for another day. Cc: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-28iio: ad9523: support for external signals via gpiosMichael Hennerich
The AD9523 supports external signals for power-down mode, resetting the device and sync timing. This change add support for specifying values for these signals via the gpios and initializing them default values. For the reset signal, the GPIO is toggled during probing to re-initialize the device to a known state. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-28iio: ad9523: Fix return value for ad952x_store()Lars-Peter Clausen
A sysfs write callback function needs to either return the number of consumed characters or an error. The ad952x_store() function currently returns 0 if the input value was "0", this will signal that no characters have been consumed and the function will be called repeatedly in a loop indefinitely. Fix this by returning number of supplied characters to indicate that the whole input string has been consumed. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Fixes: cd1678f96329 ("iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-25Merge tag 'iio-for-4.19b' of ↵Greg Kroah-Hartman
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.
2018-07-24iio: sca3000: Fix missing return in switchGustavo A. R. Silva
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: 626f971b5b07 ("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>
2018-07-24iio: ad9523: Fix displayed phaseLars-Peter Clausen
Fix the displayed phase for the ad9523 driver. Currently the most significant decimal place is dropped and all other digits are shifted one to the left. This is due to a multiplication by 10, which is not necessary, so remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Fixes: cd1678f9632 ("iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: adc: meson-saradc: add support for the Meson8m2 SoCsMartin Blumenstingl
The SAR ADC on Meson8m2 behaves identical to the one found in the Meson8b SoCs. Add a separate compatible string because the temperature sensor logic (not supported yet) differs between Meson8 and Meson8m2 (however, it's the same for Meson8b and Meson8m2). Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: adc: ti-ads7950: allow simultaneous use of buffer and direct modeDavid Lechner
This modifies the TI ADS7950 A/DC driver to allow the simultaneous use of both the triggered buffer and reading channels directly (via in- kernel API or sysfs). The use case for this is on LEGO MINDSTORMS EV3. Two of the voltage channels are used in-kernel by a power supply driver, which reads the values using iio_read_channel_processed(). These channels are only read at a slow rate (<= 1Hz). However, we want to be able to read 12 other channels at the same time using the triggered buffer at a high rate (>= 100Hz). Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: adc: ti-ads7950: use SPDX-License-IdentifierDavid Lechner
This updates the ti-ads7950.c file to use SPDX-License-Identifier instead of more verbose license text. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: adc: at91-sama5d2_adc: fix up casting in at91_adc_read_info_raw()Dan Carpenter
This code is problematic because we're supposed to be writing an int but we instead write to only the high 16 bits. This doesn't work on big endian systems, and there is a potential that the bottom 16 bits are used without being initialized. Fixes: 23ec2774f1cc ("iio: adc: at91-sama5d2_adc: add support for position and pressure channels") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: ad9523: replace core mlock with local lockLars-Peter Clausen
This is also part of a long term effort to make the use of mlock opaque and single purpose. This lock is required for accessing device registers. The device may be accessed by multiple processes at the same time, and this can result in inconsistent data, where one device reads data before the other one has finished writing. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: adc: xilinx: Remove dead code from xadc_zynq_setupManish Narani
This patch removes dead code from xadc_zynq_setup. The condition "if (tck_rate > XADC_ZYNQ_TCK_RATE_MAX)" cannot be true at any point of time. There is also an incompatible parameter used in the code. This patch fixes the same reported by coverity. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: light: introduce si1133Maxime Roussin-Bélanger
e-mail received from Silicon Lab to confirm that the licensing isn't a problem. " Dear Maxime Roussin-Belanger, The LUX calculation code only works with Si1133. As long as the software is used with Silicon Lab's sensor product, I don't see any problem. Regards, Tony " Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com> Reviewed-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: Add modifier for DUV lightMaxime Roussin-Bélanger
Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23iio: light: isl29501: Add support for the ISL29501 ToF sensor.Mathieu Othacehe
This patch adds support for the ISL29501 Time of Flight sensor. Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-21iio: Add channel for PhaseMathieu Othacehe
Add new channel type support for phase. This channel may be used by Time-of-flight sensors to express the phase difference between emitted and received signals. Those sensor will then use the phase shift of return signals to approximate the distance to objects. Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15iio: change strncpy+truncation to strlcpyDominique Martinet
Generated by scripts/coccinelle/misc/strncpy_truncation.cocci Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15iio: adxl345: Add support for the ADXL375Lars-Peter Clausen
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>
2018-07-15iio: imu: st_lsm6dsx: add error logs to st_lsm6dsx_read_fifo()Lorenzo Bianconi
Add debug info to error conditions in st_lsm6dsx_read_fifo routine Suggested-by: Jorge Ramirez-Ortiz <jramirez@baylibre.com> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15iio: imu: mpu6050: add support for 6515 variantBrian Masney
This patch adds support for the MPU 6515 variant. Confirmed that the driver functions correctly on a LG Nexus 5 (hammerhead) phone. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Marek <jonathan@marek.ca> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15iio: hx711: add delay until DOUT is readyAndreas Klinger
On a system with parasitic capacitance it turned out that DOUT is not ready after 100 ns after PD_SCK has raised. A measurement showed almost 1000 ns until DOUT has reached its correct value. With this patch its now possible to wait until data is ready. The wait time should not be higher than the maximum PD_SCK high time which is corresponding to the datasheet 50000 ns. Signed-off-by: Andreas Klinger <ak@it-klinger.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-15iio: accel: adxl345: add sampling frequency supportAkinobu Mita
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>
2018-07-13i2c: remove i2c_lock_adapter and use i2c_lock_bus directlyPeter Rosin
The i2c_lock_adapter name is ambiguous since it is unclear if it refers to the root adapter or the adapter you name in the argument. The natural interpretation is the adapter you name in the argument, but there are historical reasons for that not being the case; it in fact locks the root adapter. Just remove the function and force users to spell out the I2C_LOCK_ROOT_ADAPTER name to indicate what is really going on. Also remove i2c_unlock_adapter, of course. This patch was generated with git grep -l 'i2c_\(un\)\?lock_adapter' \ | xargs sed -i 's/i2c_\(un\)\?lock_adapter(\([^)]*\))/'\ 'i2c_\1lock_bus(\2, I2C_LOCK_ROOT_ADAPTER)/g' followed by white-space touch-up. Signed-off-by: Peter Rosin <peda@axentia.se> Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com> Tested-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-07-08iio: adc: max1363: 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> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07iio: dac: Add AD5758 supportStefan Popa
The AD5758 is a single channel DAC with 16-bit precision which uses the SPI interface that operates at clock rates up to 50MHz. The output can be configured as voltage or current and is available on a single terminal. Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/ad5758.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07iio: mma8452: Mark expected switch fall-throughGustavo A. R. Silva
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>
2018-07-07iio:imu:adis: Mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07iio: dac: ltc2632 remove redundant pointer chip_info and spi_dev_idColin Ian King
Pointers chip_info and spi_dev_id are being assigned but are never used hence they are redundant and can be removed. Cleans up clang warning: warning: variable 'chip_info' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07iio: dac: ti-dac5571 remove redundant variable 'shift'Colin Ian King
Variable shift is being assigned but is never used hence it is redundant and can be removed. Cleans up two clang warnings: warning: variable ‘shift’ set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07IIO: st_accel_i2c.c: Use probe_new() instead of probe()Nikolaus Voss
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>
2018-07-07IIO: st_accel_i2c.c: Simplify access to driver dataNikolaus Voss
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>
2018-07-07iio: adc: ina2xx: avoid kthread_stop() with stale task_structAkinobu Mita
When the buffer is enabled for ina2xx driver, a dedicated kthread is invoked to capture mesurement data. When the buffer is disabled, the kthread is stopped. However if the kthread gets register access errors, it immediately exits and when the malfunctional buffer is disabled, the stale task_struct pointer is accessed as there is no kthread to be stopped. A similar issue in the usbip driver is prevented by kthread_get_run and kthread_stop_put helpers by increasing usage count of the task_struct. This change applies the same solution. Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de> Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Fixes: c43a102e67db ("iio: ina2xx: add support for TI INA2xx Power Monitors") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-02Merge 4.18-rc3 into staging-nextGreg Kroah-Hartman
We want the staging/iio fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-30iio: adc: Add Spreadtrum SC27XX PMICs ADC supportFreeman Liu
The Spreadtrum SC27XX PMICs ADC controller contains 32 channels, which is used to sample voltages with 12 bits conversion. [Baolin Wang did lots of improvements] Signed-off-by: Freeman Liu <freeman.liu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-30iio: accel: adxl345: add calibration offset supportAkinobu Mita
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>
2018-06-30iio: accel: adxl345: convert address field usage in iio_chan_specAkinobu Mita
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>
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