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path: root/drivers/iio/magnetometer
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2014-05-05iio: hid-sensors: Compass 3D: Raw read supportSrinivas Pandruvada1-0/+16
Added support for raw reading of channel. If the sensor is powered off, it will turn on for reading value Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-05iio: hid-sensors: Add API to power on/offSrinivas Pandruvada1-4/+3
Added an API to allow client drivers to turn ON and OFF sensors for quick read. Added data_read as counting varaible instead of boolean, so that sensor is powered off only when last user released it. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-05iio: hid-sensors: Compass 3D: adjust scale and offsetSrinivas Pandruvada1-4/+13
Using units and unit exponent to calculate scale which is compliant to IIO ABI. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03iio: ak8975: Fix issue with the nameSrinivas Pandruvada1-1/+0
Fixing issue caused by clash of two patches, one adding a name with the acpi enumeration patch. 54ab3e24 Beomho Seo 2014-04-02 @572 indio_dev->name = id->name; d913971e Srinivas Pandruvada 2014-03-19 574 indio_dev->name = name; The name added by commit 54ab3e24 is not required as this is already added by taking care of case where id is NULL. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03iio:magnetometer:mag3110: Enable user offset calibrationPeter Meerwald1-2/+15
add IIO_CHAN_INFO_CALIBBIAS Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03iio:magnetometer:mag3110: Fix initialization of ctrl_reg1Peter Meerwald1-1/+1
DR bits need to be shifted; since MAG3110_CTRL_DR_DEFAULT is zero, the change has no effect Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-26iio: st_sensors: move regulator retrieveal to coreLinus Walleij1-0/+4
Currently the pressure sensor has code to retrieve and enable two regulators for Vdd and Vdd IO, but actually these voltage inputs are found on all of these ST sensors, so move the regulator handling to the core and make sure all the ST sensors call these functions on probe() and remove() to enable/disable power. Here also mover over to obtaining the regulator from the *parent* device of the IIO device, as the IIO device is created on-the-fly in this very subsystem it very unlikely evert have any regulators attached to it whatsoever. It is much more likely that the parent is a platform device, possibly instantiated from a device tree, which in turn have Vdd and Vdd IO supplied assigned to it. Cc: Lee Jones <lee.jones@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-26iio: st_sensors: announce registered sensorsLinus Walleij1-0/+3
It is pretty helpful to know already from dmesg that a certain device is successfully registered, instead of having to browse sysfs to see if it's actually there. Cc: Lee Jones <lee.jones@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-29iio: ak8975: Added ACPI enumerationSrinivas Pandruvada1-3/+37
Added capability so that this device can be enumerated via ACPI. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-22iio: ak8975 : Add AK8963 compatibility mode supportSrinivas Pandruvada2-6/+31
AK8963 and AK8975 use same register definitions, except the range of X,Y,Z values. Added support of 8963 based on i2c_device_id. Unfortunately there is no way to detect the type via registers, both device registers return 0x48 as id of chipset. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-26iio:magnetometer:mag3110: Fix unreachable codePeter Meerwald1-1/+0
drivers/iio/magnetometer/mag3110.c:197 mag3110_read_raw() info: ignoring unreachable code. drivers/iio/magnetometer/mag3110.c 185 case IIO_CHAN_INFO_SCALE: 186 switch (chan->type) { 187 case IIO_MAGN: 188 *val = 0; 189 *val2 = 1000; 190 return IIO_VAL_INT_PLUS_MICRO; 191 case IIO_TEMP: 192 *val = 1000; 193 return IIO_VAL_INT; 194 default: 195 return -EINVAL; 196 } 197 return IIO_VAL_INT_PLUS_MICRO; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ introduced by f9279d3a, mag3110: Scale factor missing Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-15iio:magnetometer:mag3110: Scale factor missing for temperaturePeter Meerwald1-3/+13
temperature is reported in milli-Celsius Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-12Merge tag 'iio-for-3.15a' of ↵Greg Kroah-Hartman1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new drivers and cleanups for IIO in the 3.15 cycle. New drivers: * si7005 relative humidity and temperature sensor * Lite-on ltr501 ambient light and proximity sensor Cleanups * Clean up some dead comments in max1363 * Drop some obsolete variables in adjd_s311 and tcs3472 left over from the introduction of iio_push_to_buffers_with_timestamp. * Drop some unneeded linux/init.h includes * Squish a sparse warning in mpl3115 by correctly specifying a be32 variable. * A number of cleanups and fixes for sca3000 * Drop an unneed checks in mxs-lradc, ad7303 and adis16400. * Drop a platform_set_drvdata in viperboard after the only use of it was removed during a devm conversion. * Add a missing device name for ak8975 to comply with the ABI. * Put mpu6050 into the IMU menu as it slipped out into the main menu. * Fix a typo and some comment formatting in mpu6050. * Document at91 ADC clock properties.
2014-02-08iio: ak8975: Add device nameBeomho Seo1-0/+1
This patch add device name. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-08iio: ak8975: Fix calculation formula for convert micro tesla to gauss unitBeomho Seo1-7/+9
This effects the reported scale of the raw values, and thus userspace applications that use this value. One micro tesla equal 0.01 gauss. So I have fixed calculation formula And add RAW_TO_GAUSS macro. ASA is in the range of 0 to 255. If multiply 0.003, calculation result(in_magn_[*]_scale) is always 0. So multiply 3000 and return and IIO_VAL_INT_PLUS_MICRO. As a result, read_raw call back function return accurate scale value. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-08iio:magnetometer:mag3110: Fix output of decimal digits in show_int_plus_micros()Peter Meerwald1-1/+1
need to print leading zeros, hence "%d.%06d" Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-08iio:magnetometer:mag3110: Report busy in _read_raw() / write_raw() when ↵Peter Meerwald1-0/+6
buffer is enabled individual reads are not permitted concurrently with buffered reads Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-18iio:mag:mag3110 replaces IIO_ST macro with explicit entries to struct scan_typeJonathan Cameron1-1/+5
The IIO_ST macro no longer covers all the elements of struct scan_type and has this has lead to some bugs being introduced. The drivers are easier to follow with this structure being directly filled so that is now preferred. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-03Merge v3.13-rc2 into staging-nextGreg Kroah-Hartman3-3/+11
we want these fixes in here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-09iio: hid-sensors: magnetometer : Add sensitivitySrinivas Pandruvada1-0/+12
A number of Properties that can be applied to Data Fields are per data field basis or for all data fields. Adding sensitivity field for all magnetometer fields, which is most commonly used in currently available sensor hubs. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09iio: Fix mag3110 Kconfig dependenciesPeter Meerwald1-0/+2
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09iio: Fix mag3110 scan_typePeter Meerwald1-1/+6
last argument of IIO_ST is shift, not endianness Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-02iio: hid_Sensors: fix crash during trigger unregisterSrinivas Pandruvada1-2/+3
We can't store the trigger instance created by iio_trigger_alloc, in trig field of iio_device structure. This needs to be stored in the driver private data. Othewise it can result in crash during module unload. Hence created a trig_ptr in the common data structure for each HID sensor IIO driver and storing here. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio: Add Freescale mag3110 magnetometer driverPeter Meerwald3-0/+412
three-axis digital magnetometer with I2C interface datasheet is available from http://cache.freescale.com/files/sensors/doc/data_sheet/MAG3110.pdf Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-21iio: Correct description how to convert microtesla to gaussPeter Meerwald1-1/+1
this just fixes the comment; however, I'm not sure if the driver reports measurements correctly; the raw values are 0.3 uT / LSB; IIO is supposed to report magnetic fields in Gauss, so the scale should be around 1/300 (ignoring ASA) -- but value and scale are returned as VAL_INT Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:st_magn: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-10/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-07Merge 3.12-rc4 into staging-nextGreg Kroah-Hartman1-9/+9
We want the staging fixes in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01iio:magnetometer: Bugfix magnetometer default output registersDenis CIOCCA1-9/+9
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21iio:magn: Register buffer also without specific triggerDenis CIOCCA1-8/+8
This patch fix buffer registration that allows to use generic IIO trigger. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21iio: magn-core: st: Clean up error handling in probe()Lee Jones1-9/+10
Reduce the amount of those unnecessary goto calls, as in most cases we can simply return immediately. We also only call for the IRQ number once and use that value throughout. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15iio: Remove unnecessary casts for iio_push_to_buffers()Lars-Peter Clausen1-3/+4
Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19iio: Remove unnecessary _write_raw_get_fmt() in several hid-sensor driversPeter Meerwald1-8/+0
IIO_VAL_INT_PLUS_MICRO is the default, no need to return it explicitly Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: srinivas pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: magnetometer: st_magn: Use devm_iio_device_allocSachin Kamat3-23/+8
Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: magnetometer: hid-sensor-magn-3d: Use devm_iio_device_allocSachin Kamat1-12/+7
Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Add a comment to about alphabetical order to Kconfigs and MakefilesLars-Peter Clausen2-0/+3
Keeping Makefile and Kconfig entries in alphabetical order usually works better than just appending new entries at the end, since it reduces the amount of conflicts. This patch adds a comment to the IIO Kconfig and Makefile files to document that the entries should be kept in alphabetical order. Also reorder those entries which weren't in alphabetical order yet. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: hid-sensor-magn-3d: add module alias for autoloadAlexander Holler1-5/+11
Add a MODULE_DEVICE_TABLE in order to let hotplug mechanisms automatically load the driver. This makes it also possible to use the usual driver name instead of HID-SENSOR-2000xx which isn't very descriptive in kernel messages. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Acked-by:Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: reword help text of several IIO_ST driversPeter Meerwald1-2/+2
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: "Denis Ciocca" <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Added ST-sensors platform data to select the DRDY interrupt pinDenis CIOCCA4-5/+7
This patch add support to redirect the DRDY interrupt on INT1 or INT2 on accelerometer and pressure sensors. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-05iio:common: Removed stuff macros, added num_data_channels on st_sensors ↵Denis CIOCCA1-0/+3
struct and added support on one-shot sysfs reads to 3 byte channel This patch introduce num_data_channels variable on st_sensors struct to manage different type of channels (size or number) in st_sensors_get_buffer_element function. Removed ST_SENSORS_NUMBER_DATA_CHANNELS and ST_SENSORS_BYTE_FOR_CHANNEL and used struct iio_chan_spec const *ch to catch data. Added 3 byte channel data support on one-shot reads. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04iio:common: ST_SENSORS_LSM_CHANNELS macro changedDenis CIOCCA1-12/+24
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-23iio: STMicroelectronics: remove three useless selectsPaul Bolle1-1/+0
Drivers for STMicroelectronics accelerometers, gyroscopes, and magnetometers were added in v3.9. They all have a (similar) select statement in their Kconfig files for a non-existant Kconfig symbol. These select statements can safely be removed. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-23iio:ak8975 Implement data ready interrupt handlingJacek Anaszewski1-2/+89
Implement "data ready" interrupt handling in addition to the two existing read modes - DRDY GPIO polling and ST1 register DRDY bit polling. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-23iio:ak8975 Add support for gpios DT propertyJacek Anaszewski1-3/+9
Add support for parsing 'gpios' property when initializing from oftree. This patch adds also the binding documentation file. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-04-02iio:magnetometer:ak8975 move driver out of stagingJonathan Cameron3-0/+497
Issues raised in last series to propose this have now been resolved so there should be no reason this driver cannot graduate from staging. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
2013-03-17iio:hid_sensors move to info_mask_(shared_by_type/separate)Jonathan Cameron1-12/+12
The original info_mask is going away in favour of the broken out versions. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-02-09iio:st_sensors fix build when !CONFIG_IIO_TRIGGERJonathan Cameron3-3/+0
Partly a case of removing unused headers and partly a case of ifdefing out the iio_trigger_ops structures. This has come about because of an 'unusual' separation of code in this driver. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Denis Ciocca <denis.ciocca@st.com>
2013-01-31iio:magnetometer: Add STMicroelectronics magnetometers driverDenis Ciocca7-0/+742
This patch adds a generic magnetometer driver for STMicroelectronics magnetometers, currently it supports: LSM303DLHC, LSM303DLM, LIS3MDL. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-26Merge 3.8-rc5 into staging-nextGreg Kroah-Hartman1-2/+2
This resolves a merge issue with a iio driver, and the zram code. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-14Merge tag 'staging-3.8-rc3' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg Kroah-Hartman: "Here are a number of small fixes to staging drivers for your 3.8-rc3 tree. Well, the omapdrm fixes aren't really "small" but they were waiting on a number of other drm patches to go in through the drm tree, and got delayed by my vacation over the holidays. They are totally self-contained, everyone involved have acked them, and they fix issues that people have been having with the driver. Other than that one, it's a bunch of tiny bugfixes for a number of reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (36 commits) staging: zram: fix invalid memory references during disk write staging: tidspbridge: use prepare/unprepare on dsp clocks staging: tidspbridge: Fix build breakage due to splitting CM functions. staging: comedi: comedi_test: fix race when cancelling command staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC staging: comedi: prevent auto-unconfig of manually configured devices staging: comedi: fix minimum AO period for NI 625x and NI 628x staging: vme_pio2: fix oops on module unloading staging: speakup: avoid out-of-range access in synth_add() staging: speakup: avoid out-of-range access in synth_init() staging: rtl8192e: Fix failure to check pci_map_single() staging: rtl8187se: Fix failure to check pci_map_single() staging: drm/imx: fix double free bug in error path staging: drm/imx: several bug fixes staging: drm/imx: check return value of ipu_reset() staging: drm/omap: fix flags in dma buf exporting staging: drm/omap: use omapdss low level API staging/fwserial: Update TODO file per reviewer comments staging/fwserial: Limit tx/rx to 1394-2008 spec maximum staging/fwserial: Refine Kconfig help text ...
2013-01-08Merge branch 'staging-linus' into staging-nextGreg Kroah-Hartman1-0/+1
This is to get the comedi fixes, and resolve the issue in comdi_test.c and comedi_fops.c that were caused by changes in both branches. It also allows the fwserial driver changes to be applied, as they required the fixes that are in staging-linus. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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