- 19 Apr, 2016 3 commits
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Linus Walleij authored
The current buffer read code tries to optimize reads from the sensor data registers by issuing a single read operation across all the indata registers. This doesn't work: when the LIS331DL accelerometer sensor is configured to open drain, active low interrupt mode, this will just clear the XDA (X-axis data available) bit in the STATUS_REG register (0x27), while YDA, ZDA and even ZYXDA remain set to 1, and the internal logic of the sensor holds the DRDY (INT1) line asserted (the value of the status register is 0xee). If we instead issue one read operation per enabled channel (X, Y, Z) things start working and we can use open drain and active low interrupts. Note that a backported patch fixing this issue will be heading via the fixes branch but changes in this file already in staging-next will make that patch 'look' rather different. The code in here is the correct one when that clash hits. Cc: Giuseppe Barba <giuseppe.barba@st.com> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Stefan Wahren authored
This patch moves the STMP reset out of ADC init function so as to remove the possiblity of an error return which will be necessary for PM ops support patches to follow. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Stefan Wahren authored
This patch moves the touchscreen type configuration into a more suitable function. Btw this simplifies PM ops later. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Marek Vasut <marex@denx.de> Tested-by: Marek Vasut <marex@denx.de> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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- 18 Apr, 2016 2 commits
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Daniel Baluta authored
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Daniel Baluta authored
This is useful for easily adding SPI support in later patches. Now bmc150_magn exports core functions to be used by I2C/SPI drivers instances. For the moment only I2C driver is supported. Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Acked-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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- 17 Apr, 2016 4 commits
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Ksenija Stanojevic authored
Set INPUT_PROP_DIRECT to indicate that it is a touchscreen on the device to help userspace classify it. Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Crestez Dan Leonard authored
Using this requires software triggers like CONFIG_IIO_HRTIMER_TRIGGER. The device can be configured to do internal periodic sampling but does not offer some sort of interrupt on data ready. Interrupts can only trigger when values get out of a specific range. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Crestez Dan Leonard authored
These chips have an almost identical interface but support a different number of value bits. Datasheet links for comparison: * http://www.ti.com/lit/ds/symlink/adc081c021.pdf * http://www.ti.com/lit/ds/symlink/adc101c021.pdf * http://www.ti.com/lit/ds/symlink/adc121c021.pdfSigned-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fix checkpatch warnings: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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- 16 Apr, 2016 18 commits
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Linus Walleij authored
This is a reimplementation of the old misc device driver for the ROHM BH1780 ambient light sensor (drivers/misc/bh1780gli.c). Differences from the old driver: - Uses the IIO framework - Uses runtime PM to idle the hardware after 5 seconds - No weird custom power management from userspace - No homebrewn values in sysfs This uses the same (undocumented) device tree compatible-string as the old driver ("rohm,bh1780gli"). Cc: Arnd Bergmann <arnd@arndb.de> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Daniel Mack <daniel@caiaq.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Ksenija Stanojevic authored
Indent lines inside if statement. Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
Some variants of the devices from the ADIS family don't auto-clear the self-test bit after the self-test has completed. Instead we have to manually clear. Add support for this to the ADIS library. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Jonathan Cameron authored
This fixes the errors reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: else should follow close brace '}' Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the errors reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: switch and case should be at the same indent Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: space required before the open parenthesis '(' Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: that open brace { should be on the previous line Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Daniel Baluta authored
BMI160 is an Inertial Measurement Unit (IMU) which provides acceleration and angular rate measurement. It also offers a secondary I2C interface for connecting a magnetometer sensor (usually BMM160). Current driver offers support for accelerometer and gyroscope readings via sysfs or via buffer interface using an external trigger (e.g. hrtimer). Data is retrieved from IMU via I2C or SPI interface. Datasheet is at: http://www.mouser.com/ds/2/783/BST-BMI160-DS000-07-786474.pdfSigned-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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- 10 Apr, 2016 7 commits
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Harald Geyer authored
* Unify log messages * Add more DEBUG messages Apparently this driver is working unreliably on some platforms that I can't test. Therefore I want an easy way for bug reporters to provide useful information without making the driver too chatty by default. Signed-off-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Alison Schofield authored
Replace the code that guarantees the device stays in direct mode with iio_device_{claim|release}_direct_mode() which does same. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Alison Schofield authored
Driver includes struct regmap and struct device in its global data. Remove the struct device and use regmap API to retrieve device info. Patch created using Coccinelle plus manual edits. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Acked-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Paul Cercueil authored
This patch adds support for the AD5592R (spi) and AD5593R (i2c) ADC/DAC/GPIO devices. Signed-off-by: Paul Cercueil <paul.cercueil@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Harald Geyer authored
commit f836c459 moved mxs-lradc driver out of staging. However the binding document was left in the old place. Signed-off-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Gregor Boirie authored
This will be used together with an external trigger (e.g hrtimer based software trigger). Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Slawomir Stepien authored
The following functions are supported: - write, read potentiometer value - potentiometer scale Datasheet: https://datasheets.maximintegrated.com/en/ds/DS1803.pdfSigned-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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- 04 Apr, 2016 5 commits
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Clifton Barnes authored
fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned'' Signed-off-by: Clifton Barnes <clifton.a.barnes@gmail.com> Acked-by: Martyn Welch <martyn@welchs.me.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Daeseok Youn authored
fix checkpatch.pl warning about 'Avoid CamelCase' Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Daeseok Youn authored
The "ch->ch_bd" is already assined to "bd" but this is only for checking null or MAGIC number. in the dgnc_tty_ioctl function, bd can be used for referencing to board_ops structure. Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Tetsuo Handa authored
Currently, lowmemorykiller (LMK) is using TIF_MEMDIE for two purposes. One is to remember processes killed by LMK, and the other is to accelerate termination of processes killed by LMK. But since LMK is invoked as a memory shrinker function, there still should be some memory available. It is very likely that memory allocations by processes killed by LMK will succeed without using ALLOC_NO_WATERMARKS via TIF_MEMDIE. Even if their allocations cannot escape from memory allocation loop unless they use ALLOC_NO_WATERMARKS, lowmem_deathpending_timeout can guarantee forward progress by choosing next victim process. On the other hand, mark_oom_victim() assumes that it must be called with oom_lock held and it must not be called after oom_killer_disable() was called. But LMK is calling it without holding oom_lock and checking oom_killer_disabled. It is possible that LMK calls mark_oom_victim() due to allocation requests by kernel threads after current thread returned from oom_killer_disabled(). This will break synchronization for PM/suspend. This patch introduces per a task_struct flag for remembering processes killed by LMK, and replaces TIF_MEMDIE with that flag. By applying this patch, assumption by mark_oom_victim() becomes true. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Arve Hjonnevag <arve@android.com> Cc: Riley Andrews <riandrews@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Merge tag 'iio-for-4.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of IIO new device support, features and cleanups for the 4.7 cycle. New core support * UV light modifier (for intensity) * UV light index channel type. New device support * hp206c barometer and altimeter - new driver. * mcp4131 potentiometer - new driver supporting lots of parts from Microchip. * mma8452 - FXLS8471Q support - NXP LPC18XX SOC ADC - new driver. - NXP LPC18XX SOC DAC - new driver. - rockchip_saradc - support rk3399 * st accel - h3lis331dl support Staging driver removals * adis16204 - obsolete part making it hard to get parts to test the driver in order to clean it up. * adis16220 - obsolete part making it hard to get the parts test the driver in order to clean it up. Features * core - convenience functions to claim / release direct access to the device. Makes more consistent handling of this corner easier. Used in ad7192 driver. * ak8975 - power regulator support. * at91-sama5d2 - differential channel support. * mma8452 - runtime pm support - drop device specific autosleep and use the runtime pm one instead. * ms5611 - DT bindings - oversampling ratio support Cleanups and minor fixes * MAINTAINERS - Peter got married - hence name change! * Documentation - Fix a typo in in_proximity_raw description. - Add some missing docs for iio_buffer_access_funcs. * Tools - update iio_event_monitor names to match new stuff. - make generic_buffer look for triggers ending in -trigger as we let these in for a number of drivers a long time back and now it is a fairly common option. Drivers * staging wide - convert bare unsigned usage to unsigned int to comply with coding style. * non staging wide: - since boiler plate gpio handling of interrupts has been moved into the ACPI core we don't need to include gpio/consumer.h in a load of drivers so drop it. * ad7606 - fix an endian casting sparse warning. * ak8975 - fix a possible unitialized warning from gcc. - drop and unused field left over from earlier cleanups - fix a missing regulator_disable on exit. * at91-sama5d2 - typo and indentation - missing IOMEM dependency. - cleanup mode register usage by avoidling erasing whole thing when changing the sampling frequency. * bmc150 - use the core demux and available_scan_masks to simplify buffer handling - optimize the transfers in the trigger handler now we have a magic function to emulate bulk reads (under circumstances met here). This matters with some rather dumb i2c adapters in particular. - use a single regmap_conf for all bus types as they were all the same. * bmg160 - use the core demux and available_scan_masks to simplify the buffer handling - optimize the transfers in the trigger handler now we have a magic funciton to emulate bulk rads (under circumstances met here). - drop gpio interrupt probing from the driver (ACPI) as now handled by the ACPI core. * ina2xx-adc - update the CALIB register when RShunt changes. - fix scale for VShunt - in reality this error canceled out when used. * isl29028 - use regmap to retrieve the struct device instead of carrying a second copy of it around. * kxcjk-1013 - use core demux - optimize i2c transfers in the trigger handler. * mcp4531 - refactor to use a pointer to access model parameters instead of indexing into the array each time. * mma8452 - style fixes - avoid swtiching to active whenever the config changes - add missin i2c_device_id for mma8451 * mpu6050 - fix possible NULL dereference. - fix the name / chip_id used when ACPI used (otherwise reports as NULL). * ms5611 - fix a missing regulator_disable that left the regulator on during removal. * mxc4005 - drop gpio interrupt handling for ACPI case from driver as the core now handles this case. * st-sensors - note that there are only ever a maximum of 3 axis on current st-sensors so just allocate a fixed sized buffer big enough for that. * tpl0102 - change the i2c_check_functionality condition to bring it inline with other IIO users as EOPNOTSUPP. * tsl2563 - replace deprecated flush_scheduled_work
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- 03 Apr, 2016 1 commit
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Irina Tirdea authored
bmc150_i2c_regmap_conf is defined three times (in bmc150-accel-core.c, bmc150-accel-i2c.c and and bmc150-accel-spi.c), although the definition is the same. Use one common definition for bmc150_i2c_regmap_conf in all included files. Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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