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| * | | iio:ad5064: Use a enum for the register map layout typeLars-Peter Clausen2016-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the ad5064 only supports two different register map variations and this is represented by a bool. This patch changes since to a enum so we can support more variations in the future. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:ad5064: List support LTC devices in KconfigLars-Peter Clausen2016-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | List the newly support LTC devices in the Kconfig entry for the AD5064 driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:ad5064: Add support for ltc2617 and similar devicesMarc Andre2016-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Linear Technology LTC2606, LTC2607, LTC2609, LTC2616, LTC2617, LTC2619, LTC2626, LTC2627 and LTC2629 devices are very similar to the AD5064 device. This patch adds support for those devices. Datasheet for LTC devices: LTC2606, LTC2616, LTC2626: http://www.linear.com/docs/6398 LTC2607, LTC2617, LTC2627: http://www.linear.com/docs/8977 LTC2709, LTC2619, LTC2629: http://www.linear.com/docs/8477 Signed-off-by: Marc Andre <marc.andre@netline.ch> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:ad5064: Structural changes to support LTC2617Marc Andre2016-02-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes minor structural changes to support specifics for LTC2617 DAC. This DAC requires different handling of the power down modes. The configuration to actually support the DAC will be submitted in a secondary patch. Adjust the DECLARE_AD5064_CHANNELS() macro to accept a new ext_info parameter. This allows to use different power down modes per DAC. (e.g. DAC only support 90kohm to ground) Add the chip_info parameter "powerdown_ltc". This parameter is used in the ad5064_sync_powerdown_mode() function to handle the power down command for LTC diffently. For those devices the power down command must be addressed to the channel. Signed-off-by: Marc Andre <marc.andre@netline.ch> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: health: Add driver for the TI AFE4403 heart monitorAndrew F. Davis2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for the TI AFE4403 heart rate monitor and pulse oximeter. This device detects reflected LED light fluctuations and presents an ADC value to the user space for further signal processing. Data sheet located here: http://www.ti.com/product/AFE4403/datasheet Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: health: Add driver for the TI AFE4404 heart monitorAndrew F. Davis2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for the TI AFE4404 heart rate monitor and pulse oximeter. This device detects reflected LED light fluctuations and presents an ADC value to the user space for further signal processing. Datasheet: http://www.ti.com/product/AFE4404/datasheet Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: chemical: select IRQ_WORK for ATLAS ph sensorArnd Bergmann2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newly added atlas-ph-sensor driver uses irq_work_queue, which may not always be enabled: ERROR: "irq_work_queue" [drivers/iio/chemical/atlas-ph-sensor.ko] undefined! This adds a 'select' statement to Kconfig to ensure it's there when we need it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 27dec00ecf2d ("iio: chemical: add Atlas pH-SM sensor support") Reviewed-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: Add helper function for calculating scan index storage sizeLars-Peter Clausen2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have the same code for computing the scan index storage size in bytes all over the place. Factor this out into helper functions. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: pressure: ms5611: Add triggered buffer supportDaniel Baluta2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will be used together with an external trigger (e.g hrtimer based software trigger). Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: pressure: ms5611: Add IIO_CHAN_INFO_SCALE to maskDaniel Baluta2016-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows data exported via buffer interface to be converted to standard units in userspace. Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | | | Merge 4.5-rc3 into staging-nextGreg Kroah-Hartman2016-02-07
|\ \ \ \ | |/ / / |/| | / | | |/ | |/| | | | We want the upstream staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | Merge tag 'iio-fixes-for-4.5b' of ↵Greg Kroah-Hartman2016-02-01
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: Second set of IIO fixes for the 4.5 cycle. These ones are mostly dependent on patches from the recent merge cycle. * adc, imu and iio staging drivers - !HAS_IOMEM dependency fixes * dht11 - use boottime clock for time measurement to avoid incorrect measurements due to clock updates. * lidar - correct a return value for short i2c transfers.
| | * | iio: dht11: Use boottimeAbhilash Jindal2016-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wall time obtained from ktime_get_real_ns is susceptible to sudden jumps due to user setting the time or due to NTP. Boot time is constantly increasing time better suited for comparing two timestamps. Signed-off-by: Abhilash Jindal <klock.android@gmail.com> Reviewed-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: imu: Fix dependencies for !HAS_IOMEM archsRichard Weinberger2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Not every arch has io memory. While the driver has correct dependencies the select statement will bypass the HAS_IOMEM dependency. So, unbreak the build by rendering it into a real dependency. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: adc: Fix dependencies for !HAS_IOMEM archsRichard Weinberger2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Not every arch has io memory. So, unbreak the build by fixing the dependencies. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: proximity: lidar: correct return valueMatt Ranostay2016-01-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lidar_i2c_xfer() function was never a non-positive value on error, and this correct that with a -EIO return code. Fixes: 366e65633cf4 ("iio: proximity: lidar: optimize i2c transactions") Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | Merge tag 'iio-fixes-for-4.5a' of ↵Greg Kroah-Hartman2016-02-01
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO fixes for the 4.5 cycle. This set comprises those not dependent on patches in the 4.5 merge cycle. A second set will follow shortly with ones that are. * core in kernel interfaces - fix a possible NULL dereference that is a theoretical possibility via odd usage of iio_channel_release. Pretty much a hardening of the interface, but observed in the wild with the twl4030_charger driver. * acpi-als - report the data as processed as it is in lux. This fixes a wrong use of the IIO ABI. However, old _raw version retained to avoid breaking any userspace in the wild that is relying on that (none known but it doesn't hurt us much to retain it) * ade7753 - fix some error handling to avoid use of unitialized data. * ltr501 - use a signed return type for ltr501_match_samp_freq so as to allow returning of an error code. * mcp4725 - set name field of struct iio_dev to ensure the sysfs name attribute doesn't give NULL. * mpl115 - temperature offset sign is wrong. * stk8ba50 - IIO_TRIGGER dependency added * ti_am335x_adc - Label buffer as a software buffer. It's actually a hybrid of a true hardware buffer feeding a kfifo, but the meaning of these fields has changed a little recently and in this case it should be labeled a software buffer ensure it is allowed to use the kfifo. * vf610_adc - HAS_IOMEM dependency
| | * | iio: pressure: mpl115: fix temperature offset signAkinobu Mita2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the datasheet, the resolusion of temperature sensor is -5.35 counts/C. Temperature ADC is 472 counts at 25C. (https://www.sparkfun.com/datasheets/Sensors/Pressure/MPL115A1.pdf NOTE: This is older revision, but this information is removed from the latest datasheet from nxp somehow) Temp [C] = (Tadc - 472) / -5.35 + 25 = (Tadc - 605.750000) * -0.186915888 So the correct offset is -605.750000. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: inkern: fix a NULL dereference on errorDan Carpenter2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In twl4030_bci_probe() there are some failure paths where we call iio_channel_release() with a NULL pointer. (Apparently, that driver can opperate without a valid channel pointer). Let's fix it by adding a NULL check in iio_channel_release(). Fixes: 2202e1fc5a29 ('drivers: power: twl4030_charger: fix link problems when building as module') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.Jonathan Cameron2016-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whilst this part has a hardware buffer, the identifcation that IIO cares about is the userspace facing end. It this case we push individual elements from the hardware fifo into the software interface (specifically a kfifo) rather than providing direct reads through to a hardware buffer (as we still do in the sca3000 for example). Technically the original specification as a hardware buffer could be considered wrong, but it didn't matter until the patch listed below. Result is that any attempt to enable the buffer will return -EINVAL Fixes: 225d59adf1c8 ("iio: Specify supported modes for buffers") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: light: acpi-als: Report data as processedGabriele Mazzotta2016-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As per the ACPI specification (Revision 5.0) [1], the data coming from the sensor represent the ambient light illuminance reading expressed in lux. So use IIO_CHAN_INFO_PROCESSED to signify that the data are pre-processed. However, to keep backward ABI compatibility, the IIO_CHAN_INFO_RAW bit is not removed. [1] http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf This issue has also been responsible for at least one userspace bug report hence marking what is a small semantic fix really for stable. [2] https://github.com/hadess/iio-sensor-proxy/issues/46 Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: dac: mcp4725: set iio name property in sysfsYong Li2016-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without this change, the name entity for mcp4725 is missing in /sys/bus/iio/devices/iio\:device*/name With this change, name is reported correctly Signed-off-by: Yong Li <sdliyong@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: add HAS_IOMEM dependency to VF610_ADCVegard Nossum2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ran into this on UML: drivers/built-in.o: In function `vf610_adc_probe': drivers/iio/adc/vf610_adc.c:744: undefined reference to `devm_ioremap_resource' devm_ioremap_resource() is defined only when HAS_IOMEM is selected. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio: add IIO_TRIGGER dependency to STK8BA50Vegard Nossum2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ran into this on UML: drivers/iio/accel/stk8ba50.c: In function ‘stk8ba50_data_rdy_trigger_set_state’: drivers/iio/accel/stk8ba50.c:163:9: error: implicit declaration of function ‘iio_trigger_get_drvdata’ [-Werror=implicit-function-declaration] iio_trigger_get_drvdata() is defined only when IIO_TRIGGER is selected. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * | iio-light: Use a signed return type for ltr501_match_samp_freq()Markus Elfring2015-12-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return type "unsigned int" was used by the ltr501_match_samp_freq() function despite of the aspect that it will eventually return a negative error code. Improve this implementation detail by deletion of the type modifier then. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | | | Merge tag 'iio-for-4.6a' of ↵Greg Kroah-Hartman2016-02-01
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of new IIO device support, features and cleanups for the 4.6 cycle. Device Support * ad5761 - new driver * at91_sama5d2 ADC. - new driver and MAINTAINERS entry. - minor cleanups followed. * atlas pH-SM - new driver (this has possibly the prettiest data sheet I've ever seen) * mcp3422 - mcp3425 ADC added. * mcp4725 - mcp4726 DAC added. * mma8452 - mma8451q accelerometer added. * mpl115 - mpl115a1 added (a lot bigger than it seems as this is an SPI part whereas previous parts were i2c). * si7005 - Hoperf th02 (seems to be a repackaged part) * si7020 - Hoperf th06 (seems to be a repackaged part) New features * Core - IIO_PH type. Does what it says on the tin. * max30100 - LED current configuration support. * mcp320x - more differential measurement combinations. * mma8452 - free fall deteciton - opt3001 - enable operation without a IRQ line. - device tree docs. Somehow the original docs have disappeared down a rabbit hole, so here is a new set. * st-sensors - Support active-low interrupts. Cleanups and minor / not so minor reworks * Documentation - drop some defunct ABI from the docs in staging. * presure / Kconfig - white space cleanup. * ad7150 - BIT macro usage - Alignment fixes * ad7192 - false indent fixed. * ak8975 - constify the ak_def structures * axp288 - drop a redundant double const. * dht11 - substantial reliability improvements by being more tolerant of missing start bits. - simplify the decoding algorithm * mma8452 - whitespace cleanup * mpl115 - don't bother setting i2c_client_data as nothing uses it. * mpu6050 - drop unused function parameter. * opt3001 - extract integration time as constants. - trivial refactoring.
| * | | iio: inv_mpu6050: Remove unused parameterAdriana Reus2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The inv_check_and_setup_chip function does not use the i2c_device_id parameter. Therefore remove it. Signed-off-by: Adriana Reus <adriana.reus@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: chemical: add Atlas pH-SM sensor supportMatt Ranostay2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the Atlas Scientific pH-SM chemical sensor that can detect pH levels of solutions in the range of 0-14. Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: ph: add IIO_PH channel typeMatt Ranostay2016-01-30
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: si7020: add support for Hoperf th06Cristina Moraru2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Hoperf th06 humidity and temperature sensor as it uses same register definitions as si7020 th06 Datasheet: http://www.hoperf.com/upload/sensor/TH06.pdf Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: si7005: add support for Hoperf th02Cristina Moraru2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Hoperf th02 humidity and temperature sensor as it uses same register definitions as si7005 th02 Datasheet: http://www.anglia-live.com/netalogue/pdfs/hrf/datasheets/TH02_V1.1.pdf Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:pressure:Kconfig white space cleanup.Jonathan Cameron2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clearly a high degree of cut and paste has gone on in this file, propogating a particularly random combination of tabs and spaces. This patch at least should make it all consistent going forward. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: dht11: Simplify decoding algorithmHarald Geyer2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new algorithm uses a 'one size fits em all' threshold, which should be easier to understand and debug. I believe there are no regressions compared to the old adaptive threshold algorithm. I don't remember why I chose the old algorithm when I initially wrote the driver. Signed-off-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: dht11: Improve reliability - be more tolerant about missing start bitsHarald Geyer2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of guessing where the data starts, we now just try to decode from every possible start position. This causes no additional overhead if we properly received the full preamble and only costs a few extra CPU cycles in the case where the preamble is corrupted. This is much more efficient than to return an error to userspace and start over again. Signed-off-by: Harald Geyer <harald@ccbib.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: pressure: mpl115: support MPL115A1Akinobu Mita2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpl115 driver currently supports i2c interface (MPL115A2). There is also SPI version (MPL115A1). The difference between them is only physical transport so we can easily support both while sharing most of the code. Split the driver into a core support module and one module each for I2C and SPI support. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: pressure: mpl115: don't set unused i2c clientdataAkinobu Mita2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpl115 sets i2c clientdata, but it is not used anywhere. So remove it. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: light: opt3001: enable operation w/o IRQAlexander Koch2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable operation of the TI OPT3001 light sensor without having an interrupt line available to connect the INT pin to. In this operation mode, we issue a conversion request and simply wait for the conversion time available as timeout value, determined from integration time configuration and the worst-case time given in the data sheet (sect. 6.5, table on p. 5): short integration time (100ms): 110ms + 3ms = 113ms long integration time (800ms): 880ms + 3ms = 883ms This change is transparent as behaviour defaults to using the interrupt method if an interrupt no. is configured via device tree. Interrupt-less operation mode is performed when no valid interrupt no. is given. Signed-off-by: Alexander Koch <mail@alexanderkoch.net> Signed-off-by: Michael Hornung <mhornung.linux@gmail.com> Tested-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: light: opt3001: trivial type refactoringAlexander Koch2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change variable type of struct opt3001 members 'ok_to_ignore_lock' and 'result_ready' uint16-bitfield of length one to bool. They are used as bool, let the compiler do the optimization. Signed-off-by: Alexander Koch <mail@alexanderkoch.net> Signed-off-by: Michael Hornung <mhornung.linux@gmail.com> Tested-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: light: opt3001: extract int. time constantsAlexander Koch2016-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extract integration times as #define constants. This prepares using them for delay/timeout length determination. Signed-off-by: Alexander Koch <mail@alexanderkoch.net> Signed-off-by: Michael Hornung <mhornung.linux@gmail.com> Tested-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: add ad5761 DAC driverRicardo Ribalda Delgado2016-01-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ad5761 is a 1-channel DAC with configurable output range. The driver uses the regulator interface for its voltage ref. It shares its register layout with ad5761r, ad5721 and ad5721r. Differences: ad5761* are 16 bit, ad5721* are 12 bits. ad57*1r have an internal reference. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: adc: axp288: remove redundant duplicate const on axp288_adc_channelsColin Ian King2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | duplicate const can be removed, it is redundant. Found by static analysis using smatch. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: mma8452: add support for MMA8451QMartin Kepplinger2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for this series' 14 bit accelerometer chip, MMA8451Q. It's datasheet is available at the vendor's website: https://cache.freescale.com/files/sensors/doc/data_sheet/MMA8451Q.pdf Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: mma8452: whitespace cleanupMartin Kepplinger2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: mma8452: add freefall detection for Freescale's accelerometersMartin Kepplinger2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds freefall event detection to the supported devices. It adds the in_accel_x&y&z_mag_falling_en iio event attribute, which activates freefall mode. In freefall mode, the current acceleration magnitude (AND combination of all axis values) is compared to the specified threshold. If it falls under the threshold (in_accel_mag_falling_value), the appropriate IIO event code is generated. This is what the sysfs "events" directory for these devices looks like after this change: -rw-r--r-- 4096 Oct 23 08:45 in_accel_mag_falling_period -rw-r--r-- 4096 Oct 23 08:45 in_accel_mag_falling_value -rw-r--r-- 4096 Oct 23 08:45 in_accel_mag_rising_period -rw-r--r-- 4096 Oct 23 08:45 in_accel_mag_rising_value -r--r--r-- 4096 Oct 23 08:45 in_accel_scale -rw-r--r-- 4096 Oct 23 08:45 in_accel_x&y&z_mag_falling_en -rw-r--r-- 4096 Oct 23 08:45 in_accel_x_mag_rising_en -rw-r--r-- 4096 Oct 23 08:45 in_accel_y_mag_rising_en -rw-r--r-- 4096 Oct 23 08:45 in_accel_z_mag_rising_en Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:adc:at91-sama5d2: code cleanupLudovic Desroches2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use var type for sizeof argument instead of the struct name. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:adc:at91-sama5d2: fix vref_uv typeLudovic Desroches2016-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vref_uv has to be an int. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: adc: mcp320x: support more differential voltage measurementAkinobu Mita2016-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mcp320x driver supports the pseudo-differential mode by in_voltage'IN+'-voltage'IN-'_raw where (IN+, IN-) = (0, 1), (2, 3), ... mcp320x chips except MCP3X01 can also select swapped IN+ and IN- pairs in the pseudo-differential mode. i.e. in_voltage'IN+'-voltage'IN-'_raw where (IN+, IN-) = (1, 0), (3, 2), ... If the voltage level of IN+ is equal to or less than IN-, the resultant code will be 000h. So it is useful to provide these, too. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Oskar Andero <oskar.andero@gmail.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | MAINTAINERS: add entry for Atmel SAMA5D2 ADC driverLudovic Desroches2016-01-16
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio:adc:at91_adc8xx: introduce new atmel adc driverLudovic Desroches2016-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver supports the new version of the Atmel ADC device introduced with the SAMA5D2 SoC family. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * | | iio: ak8975: constify ak_def structuresJulia Lawall2016-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ak_def structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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