- 23 Apr, 2016 2 commits
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Gregor Boirie authored
Expose a rotation matrix to indicate userspace the chip orientation with respect to the overall hardware system. Matrix is retrieved from "in_mount_matrix". It is declared into ak8975 DTS entry as a "mount-matrix" property. Signed-off-by:
Gregor Boirie <gregor.boirie@parrot.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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Gregor Boirie authored
Expose a rotation matrix to indicate userspace the chip placement with respect to the overall hardware system. This is needed to adjust coordinates sampled from a sensor chip when its position deviates from the main hardware system. Final coordinates computation is delegated to userspace since: * computation may involve floating point arithmetics ; * it allows an application to combine adjustments with arbitrary transformations. This 3 dimentional space rotation matrix is expressed as 3x3 array of strings to support floating point numbers. It may be retrieved from a "[<dir>_][<type>_]mount_matrix" sysfs attribute file. It is declared into a device / driver specific DTS property or platform data. Signed-off-by:
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- 19 Apr, 2016 12 commits
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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> Reviewed-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by:
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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:
Irina Tirdea <irina.tirdea@intel.com> Reviewed-by:
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Peter Meerwald-Stadler authored
ultraviolet (UV) light sensor with I2C interface with a peak sensitivity at 355 nm strangely, chip uses two addresses 0x38 and 0x39 for LSB and MSB data, resp. datasheet: http://www.vishay.com/docs/84277/veml6070.pdfSigned-off-by:
Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by:
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Laxman Dewangan authored
Add following APIs in the list of managed resources of IIO: devm_iio_channel_get() devm_iio_channel_get_all() devm_iio_channel_release() devm_iio_channel_release_all() Signed-off-by:
Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by:
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Laxman Dewangan authored
Some of kernel driver uses the IIO framework to get the sensor value via ADC or IIO HW driver. The client driver get iio channel by iio_channel_get_all() and release it by calling iio_channel_release_all(). Add resource managed version (devm_*) of these APIs so that if client calls the devm_iio_channel_get_all() then it need not to release it explicitly, it can be done by managed device framework when driver get un-binded. This reduces the code in error path and also need of .remove callback in some cases. Signed-off-by:
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Laxman Dewangan authored
Some of kernel driver uses the IIO framework to get the sensor value via ADC or IIO HW driver. The client driver get iio channel by iio_channel_get() and release it by calling iio_channel_release(). Add resource managed version (devm_*) of these APIs so that if client calls the devm_iio_channel_get() then it need not to release it explicitly, it can be done by managed device framework when driver get un-binded. This reduces the code in error path and also need of .remove callback in some cases. Signed-off-by:
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Linus Walleij authored
If no channels are enabled when we run generic_buffer on a device, add a command-line option to just enable all of them, run the sampling and disable them all again afterwards. This is extremely useful when I'm low-level testing my sensors with interrupts and triggers, sample session: root@Ux500:/ lsiio Device 000: lsm303dlh_accel Device 001: lis331dl_accel Device 002: l3g4200d Device 003: lsm303dlh_magn Device 004: lps001wp Trigger 000: lsm303dlh_accel-trigger Trigger 001: lis331dl_accel-trigger Trigger 002: l3g4200d-trigger root@Ux500:/ generic_buffer -a -c 10 -n l3g4200d iio device number being used is 2 iio trigger number being used is 2 No channels are enabled, enabling all channels Enabling: in_anglvel_x_en Enabling: in_anglvel_y_en Enabling: in_anglvel_z_en Enabling: in_timestamp_en /sys/bus/iio/devices/iio:device2 l3g4200d-trigger -3.593664 -0.713133 4.870143 946684863662292480 3.225546 0.867357 -4.945878 946684863671875000 -0.676413 0.127296 0.106641 946684863681488037 -0.661113 0.110160 0.128826 946684863690673828 -0.664173 0.113067 0.123471 946684863700683593 -0.664938 0.109395 0.124848 946684863710144042 -0.664173 0.110619 0.130203 946684863719512939 -0.666162 0.111231 0.132651 946684863729125976 -0.668610 0.111690 0.130662 946684863738739013 -0.660501 0.110466 0.131733 946684863748565673 Disabling: in_anglvel_x_en Disabling: in_anglvel_y_en Disabling: in_anglvel_z_en Disabling: in_timestamp_en Pure awesomeness. If some channels have been enabled through scripts or manual interaction, nothing happens. Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Acked-by:
Daniel Baluta <daniel.baluta@intel.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Linus Walleij authored
Some types of ST Sensors can be connected to the same IRQ line as other peripherals using open drain. Add a device tree binding and a sensor data property to flip the right bit in the interrupt control register to enable open drain mode on the INT line. If the line is set to be open drain, also tag on IRQF_SHARED to the IRQ flags when requesting the interrupt, as the whole point of using open drain interrupt lines is to share them with more than one peripheral (wire-or). Cc: devicetree@vger.kernel.org Cc: Giuseppe Barba <giuseppe.barba@st.com> Cc: Denis Ciocca <denis.ciocca@st.com> Acked-by:
Rob Herring <rob@kernel.org> Signed-off-by:
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Linus Walleij authored
This makes all ST sensor drivers check that they actually have new data available for the requested channel(s) before claiming an IRQ, by reading the status register (which is conveniently the same for all ST sensors) and check that the channel has new data before proceeding to read it and fill the buffer. This way sensors can share an interrupt line: it can be flaged as shared and then the sensor that did not fire will return NO_IRQ, and the sensor that fired will handle the IRQ and return IRQ_HANDLED. Cc: Giuseppe Barba <giuseppe.barba@st.com> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by:
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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:
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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:
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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:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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- 18 Apr, 2016 2 commits
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Daniel Baluta authored
Signed-off-by:
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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:
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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:
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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:
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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:
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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:
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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:Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
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Ksenija Stanojevic authored
Indent lines inside if statement. Signed-off-by:
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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:
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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:
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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:
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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:
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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:
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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:
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Slawomir Stepien authored
This fixes the error reported by checkpatch.pl: ERROR: else should follow close brace '}' Signed-off-by:
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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:
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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:
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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:
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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:
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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:
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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:
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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 authored
This fixes the error reported by checkpatch.pl: ERROR: that open brace { should be on the previous line Signed-off-by: -
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:
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- 10 Apr, 2016 2 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:
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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:
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