Commit Graph

181 Commits

Author SHA1 Message Date
Greg Kroah-Hartman be61a0d784 First round of new drivers, features and cleanups for IIO in the 3.19 cycle.
New drivers / supported parts
 * rockchip - rk3066-tsadc variant
 * si7020 humidity and temperature sensor
 * mcp320x - add mcp3001, mcp3002, mcp3004, mcp3008, mcp3201, mcp3202
 * bmp280 pressure and temperature sensor
 * Qualcomm SPMI PMIC current ADC driver
 * Exynos_adc - support exynos7
 
 New features
 * vf610-adc - add temperature sensor support
 * Documentation of current attributes, scaled pressure, offset and
   scaled humidity, RGBC intensity gain factor and scale applied to
   differential voltage channels.
 * Bring iio_event_monitor up to date with newer modifiers.
 * Add of_xlate function to allow for complex channel mappings from the
   device tree.
 * Add -g parameter to generic_buffer example to allow for devices with
   directly fed (no trigger) buffers.
 * Move exynos driver over to syscon for PMU register access.
 
 Cleanups, fixes for new drivers
 * lis3l02dq drop an unneeded else.
 * st sensors - renam st_sensors to st_sensor_settings (for clarity)
 * st sensors - drop an unused parameter from all the probe utility
   functions.
 * vf610 better error handling and tidy up.
 * si7020 - cleanups following merge
 * as3935 - drop some unnecessary semicolons.
 * bmp280 - fix the pressure calculation.
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Merge tag 'iio-for-3.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First round of new drivers, features and cleanups for IIO in the 3.19 cycle.

New drivers / supported parts
* rockchip - rk3066-tsadc variant
* si7020 humidity and temperature sensor
* mcp320x - add mcp3001, mcp3002, mcp3004, mcp3008, mcp3201, mcp3202
* bmp280 pressure and temperature sensor
* Qualcomm SPMI PMIC current ADC driver
* Exynos_adc - support exynos7

New features
* vf610-adc - add temperature sensor support
* Documentation of current attributes, scaled pressure, offset and
  scaled humidity, RGBC intensity gain factor and scale applied to
  differential voltage channels.
* Bring iio_event_monitor up to date with newer modifiers.
* Add of_xlate function to allow for complex channel mappings from the
  device tree.
* Add -g parameter to generic_buffer example to allow for devices with
  directly fed (no trigger) buffers.
* Move exynos driver over to syscon for PMU register access.

Cleanups, fixes for new drivers
* lis3l02dq drop an unneeded else.
* st sensors - renam st_sensors to st_sensor_settings (for clarity)
* st sensors - drop an unused parameter from all the probe utility
  functions.
* vf610 better error handling and tidy up.
* si7020 - cleanups following merge
* as3935 - drop some unnecessary semicolons.
* bmp280 - fix the pressure calculation.
2014-11-05 11:42:48 -08:00
Denis CIOCCA 7be178bb48 iio:common: Set the device pointer into ST common sensors library
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04 11:26:21 +01:00
Denis CIOCCA 2109eb4c0c iio:magnetometer: Removed unnecessary parameter on common_probe function
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04 11:25:19 +01:00
Denis CIOCCA a7ee8839da iio:imu: changed structure name from st_sensors to st_sensor_settings
This patch change structure name and related variables names.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04 11:23:13 +01:00
Greg Kroah-Hartman d84a2b0d6f Merge 3.17-rc6 into staging-next.
We want the fixes in there, and it resolves a merge issue with
drivers/iio/accel/bma180.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-22 07:30:03 -07:00
Irina Tirdea 48edc37481 iio: magn: ak8975: fix unnecessary casting between char* and const char*
Use const char* instead of casting const char* to char*.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-09-14 18:31:11 +01:00
Denis CIOCCA a31d092899 iio:magnetometer: bugfix magnetometers gain values
This patch fix gains values. The first driver was designed using
engineering samples, in mass production the values are changed.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-09-14 18:21:23 +01:00
Sanjeev Sharma 81816affea iio: remove .owner field for driver using module_platform_driver
This patch removes the .owner field for drivers which use the
platform_driver_register api because this is overriden in
_platform_driver_register.

Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma@mentor.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-26 21:08:38 +01:00
Reyad Attiyat 03d795589d iio: hid-sensor-magn-3d: Fix build warning
Fix build warning, sizeof() called on dynamically
sized pointer, by removing the call and the dependent
function parameter. It is not needed or used in this
driver, when pushing values to an iio buffer.

Changes from v1
- Fix mistake in varible name

Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-27 14:16:29 +01:00
Greg Kroah-Hartman 040bf7d63d Fourth round of IIO new drivers, functionality and cleanups for the 3.17 cycle
New functionality
 * A new modifier to indicate that a rotation is relative to either
   true or magnetic north.  This is to be used by some magnetometers
   that provide data in this way.
 * hid magnetometer now supports output rotations from various variants on
   North
 * HMC5843 driver converted to regmap and reworked to allow easy support
   of other similar devices.  Support for HMC5983 added via both i2c and SPI.
 * Rework of Exynos driver to simplify extension to support more devices.
 * Addition of support for the Exynos3250 ADC (which requires an additional
   clock)  Support for quite a few more devices on its way.
 
 Cleanups
 * ad7997 - a number of cleanups and tweaks to how the events are controlled
   to make it more intuitive.
 * kxcjk - cleanups and minor fixes for this new driver.
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Merge tag 'iio-for-3.17d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Fourth round of IIO new drivers, functionality and cleanups for the 3.17 cycle

New functionality
* A new modifier to indicate that a rotation is relative to either
  true or magnetic north.  This is to be used by some magnetometers
  that provide data in this way.
* hid magnetometer now supports output rotations from various variants on
  North
* HMC5843 driver converted to regmap and reworked to allow easy support
  of other similar devices.  Support for HMC5983 added via both i2c and SPI.
* Rework of Exynos driver to simplify extension to support more devices.
* Addition of support for the Exynos3250 ADC (which requires an additional
  clock)  Support for quite a few more devices on its way.

Cleanups
* ad7997 - a number of cleanups and tweaks to how the events are controlled
  to make it more intuitive.
* kxcjk - cleanups and minor fixes for this new driver.
2014-07-24 14:57:19 -07:00
Reyad Attiyat abea9c62c3 iio: hid-sensor-magn-3d: Add support for rotation from north
Add the HID usage attribute ID's and IIO channel info for rotation
from north support.

Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-20 13:39:35 +01:00
Reyad Attiyat 2a96540a5c iio: hid-sensor-magn-3d: Scan for usage attributes before setting up iio channels
Scan for and count the HID usage attributes supported by the driver.
This allows for the driver to only setup the IIO channels for the
sensor usages present in the HID USB reports.

Changes from v5
-Fixed kernel panic from invalid pointer dereference
-Fixed variable assignment style

Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-20 13:37:52 +01:00
Greg Kroah-Hartman 589e1d10ff Merge 3.16-rc5 into staging-next
We want the fixes in -rc5 in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-13 15:35:56 -07:00
Linus Walleij 2d7768a872 iio: st_sensors: add devicetree probing support
The I2C devices that make up the STMicroelectronics MEMS sensors
may be sneakily enabled by cleverly giving the device node the same
name as a string match from the platform device ID table. However
the right method is to use the compatible string.

On detection, the ST sensors use the ID string to probe and
instatiate the right sensor driver, so pass the kernel-internal ID
string in the .data field of the OF match table, and set the I2C
client name to this name when a compatible match is used.

This avoids having misc Linux-specific strings floating around in
the device tree.

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>
2014-07-11 21:09:49 +01:00
Jonathan Cameron 2d239c9e92 iio:st sensors: remove custom sampling frequence attribute in favour of core support.
This allows in kernel client drivers to access this

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
2014-07-07 09:39:57 +01:00
Sachin Kamat 5f25b41f7e iio: hid-sensor-magn-3d: Fix return values
IIO_CHAN_INFO_SAMP_FREQ and IIO_CHAN_INFO_HYSTERESIS cases ignored
the actual return values (which could be -EINVAL) and instead
returned IIO_VAL_INT_PLUS_MICRO always. Return the actual value
obtained from the functions. Both functions return IIO_VAL_INT_PLUS_MICRO
upon success.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-05 11:07:12 +01:00
Greg Kroah-Hartman 3dc50c1af3 Second round of new drivers and cleanups for IIO in the 3.17 cycle.
New drivers
 * mcp4902, mcp4912 and mcp4922 SPI DAC driver.
 * max1027, max1029 and max1031 SPI ADC driver.
 
 Cleanups
 * cm32181 - use devm APIs to simplify error paths.
 * ak8975 - use devm APIs to simplify error paths.
 * ad9850 - drop some unused defines and an unnecessary goto.
 * hmc5843 - add missing devices to the device id table and the documentation.
 * ad9832 - small formatting cleanups.
 * sca3000 - hide direct use of the stufftoread element by adding a
     data_available function.  This is a precursor for the addition of buffer
     watermarks to the subsystem but stands as a good cleanup on its own.
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Merge tag 'iio-for-3.17b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new drivers and cleanups for IIO in the 3.17 cycle.

New drivers
* mcp4902, mcp4912 and mcp4922 SPI DAC driver.
* max1027, max1029 and max1031 SPI ADC driver.

Cleanups
* cm32181 - use devm APIs to simplify error paths.
* ak8975 - use devm APIs to simplify error paths.
* ad9850 - drop some unused defines and an unnecessary goto.
* hmc5843 - add missing devices to the device id table and the documentation.
* ad9832 - small formatting cleanups.
* sca3000 - hide direct use of the stufftoread element by adding a
    data_available function.  This is a precursor for the addition of buffer
    watermarks to the subsystem but stands as a good cleanup on its own.
2014-06-29 09:49:28 -07:00
Beomho Seo a845a3aab8 iio: magnetometer: ak8975: Use devm_* APIs
This patch use devm_* APIs make driver simpler.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-29 12:03:45 +01:00
Greg Kroah-Hartman ef7994fa2a Merge 3.16-rc2 into staging-next
We want the staging fixes here as well.
2014-06-22 12:33:51 -04:00
Greg Kroah-Hartman e28642c04a First set of IIO fixes for the 3.16 cycle.
A mixed bag of fixes, many of which feel just to late for 3.15.
 
 * hid sensors - some devices need a feature report request in order to
   change power state.  This isn't part of the spec, but has been observed
   on several devices and does no harm to others.
 * mpl3115 has had two errors in the buffer description fixed. The presure is
   signed, not unsigned and the temperature has 12 bits rather than 16.
   These could lead to incorrect interpretation of the data in userspace.
 * tsl2x7x - the high byte of the proximity thresholds should be written along
   with the low byte (which was). This could lead to interesting results
   with large thresholds.
 * twl4030 - a flag to specify processed values were required was not set
   when initializing a reading.  As such values returned were in an unknown
   state. Fixed by simply initializing it appropriately.
 * IIO_SIMPLE_DUMMY_BUFFER did not select IIO_BUFFER leading to randconfig
   build errors.
 * ak8975 was applying an unwanted le16_to_cpu conversion as the i2c framework
   already performs one.  As such for big endian systems, the bytes would be
   in the wrong order in the magnetic field measurements reported.
 * mxs-lradc - the controllable voltage dividers were not enabled / disabled for
   later channels than the first one during conversion.
 * at91_adc error handling returned -ENOMEM in a u8. Return value of
   at91_adc_get_trigger_value_by_name changed to int thus allowing -ENOMEM and
   also original values to be returned.
 * mcb - mcb_request_mem returns and ERR_PTR but the caller was checking for
   NULL to detect an error.
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Merge tag 'iio-fixes-for-3.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 3.16 cycle.

A mixed bag of fixes, many of which feel just to late for 3.15.

* hid sensors - some devices need a feature report request in order to
  change power state.  This isn't part of the spec, but has been observed
  on several devices and does no harm to others.
* mpl3115 has had two errors in the buffer description fixed. The presure is
  signed, not unsigned and the temperature has 12 bits rather than 16.
  These could lead to incorrect interpretation of the data in userspace.
* tsl2x7x - the high byte of the proximity thresholds should be written along
  with the low byte (which was). This could lead to interesting results
  with large thresholds.
* twl4030 - a flag to specify processed values were required was not set
  when initializing a reading.  As such values returned were in an unknown
  state. Fixed by simply initializing it appropriately.
* IIO_SIMPLE_DUMMY_BUFFER did not select IIO_BUFFER leading to randconfig
  build errors.
* ak8975 was applying an unwanted le16_to_cpu conversion as the i2c framework
  already performs one.  As such for big endian systems, the bytes would be
  in the wrong order in the magnetic field measurements reported.
* mxs-lradc - the controllable voltage dividers were not enabled / disabled for
  later channels than the first one during conversion.
* at91_adc error handling returned -ENOMEM in a u8. Return value of
  at91_adc_get_trigger_value_by_name changed to int thus allowing -ENOMEM and
  also original values to be returned.
* mcb - mcb_request_mem returns and ERR_PTR but the caller was checking for
  NULL to detect an error.
2014-06-18 10:41:08 -07:00
Srinivas Pandruvada d14c0f10e7 iio: AK09911 : 3 axis compass support
Added IIO magnetometer driver for AK09911. In functionality is resembles
AK8975 or AK8963. But there are several differences, so instead of
modifying existing AK8975 driver and keep it clean, implemented as
a separate driver.
The key differences are:
- Register map is different and have different indexes
- AK09911 is a very compact interface with no DRDY pin. So no support
 of interrupt or GPIO poll
- Even for polled mode no mention on ST2 register, which is required in
ak8975 driver
- mode values are different for fuse access

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-16 20:55:24 +01:00
Peter Meerwald 8ba42fb7b1 iio: Fix endianness issue in ak8975_read_axis()
i2c_smbus_read_word_data() does host endian conversion already,
no need for le16_to_cpu()

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
2014-06-07 11:50:34 +01:00
Srinivas Pandruvada 8009c594a5 iio: hid-sensors: Compass 3D: Raw read support
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>
2014-05-05 10:59:52 +01:00
Srinivas Pandruvada 56ff6be608 iio: hid-sensors: Add API to power on/off
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>
2014-05-05 10:59:49 +01:00
Srinivas Pandruvada 92463fdab5 iio: hid-sensors: Compass 3D: adjust scale and offset
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>
2014-05-05 10:59:47 +01:00
Srinivas Pandruvada 88cece46ac iio: ak8975: Fix issue with the name
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>
2014-05-03 12:01:13 +01:00
Peter Meerwald 0828eddc56 iio:magnetometer:mag3110: Enable user offset calibration
add IIO_CHAN_INFO_CALIBBIAS

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03 11:27:52 +01:00
Peter Meerwald 6584891bd0 iio:magnetometer:mag3110: Fix initialization of ctrl_reg1
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>
2014-05-03 11:19:42 +01:00
Linus Walleij ea7e586bdd iio: st_sensors: move regulator retrieveal to core
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>
2014-04-26 11:52:42 +01:00
Linus Walleij 4f544ced19 iio: st_sensors: announce registered sensors
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>
2014-04-26 11:50:59 +01:00
Srinivas Pandruvada d913971eca iio: ak8975: Added ACPI enumeration
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>
2014-03-29 10:40:39 +00:00
Srinivas Pandruvada 6027c077f6 iio: ak8975 : Add AK8963 compatibility mode support
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>
2014-03-22 12:41:37 +00:00
Peter Meerwald b2addb4a11 iio:magnetometer:mag3110: Fix unreachable code
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>
2014-02-25 20:45:58 +00:00
Peter Meerwald f9279d3a8c iio:magnetometer:mag3110: Scale factor missing for temperature
temperature is reported in milli-Celsius

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-15 09:54:46 +00:00
Greg Kroah-Hartman e5b9c05772 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.
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Merge tag 'iio-for-3.15a' of 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.
2014-02-11 14:12:12 -08:00
Beomho Seo 54ab3e244d iio: ak8975: Add device name
This patch add device name.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-08 10:31:29 +00:00
Beomho Seo bef44abccb iio: ak8975: Fix calculation formula for convert micro tesla to gauss unit
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>
2014-02-08 10:28:05 +00:00
Peter Meerwald 71bd89454d iio:magnetometer:mag3110: Fix output of decimal digits in show_int_plus_micros()
need to print leading zeros, hence "%d.%06d"

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-08 10:06:27 +00:00
Peter Meerwald f25330f63e iio:magnetometer:mag3110: Report busy in _read_raw() / write_raw() when 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>
2014-02-08 10:06:22 +00:00
Jonathan Cameron e5687979eb iio🔍mag3110 replaces IIO_ST macro with explicit entries to struct scan_type
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>
2013-12-17 20:55:50 +00:00
Greg Kroah-Hartman 06749f192b Merge v3.13-rc2 into staging-next
we want these fixes in here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-02 16:39:07 -08:00
Srinivas Pandruvada 2461fc9f3f iio: hid-sensors: magnetometer : Add sensitivity
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>
2013-11-09 13:51:23 +00:00
Peter Meerwald 50619cb173 iio: Fix mag3110 Kconfig dependencies
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09 12:15:34 +00:00
Peter Meerwald 911bdc68ec iio: Fix mag3110 scan_type
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>
2013-11-09 12:12:33 +00:00
Srinivas Pandruvada ec7f68e07b iio: hid_Sensors: fix crash during trigger unregister
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>
2013-11-02 19:07:06 +00:00
Peter Meerwald 39631b5f95 iio: Add Freescale mag3110 magnetometer driver
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>
2013-10-23 17:43:11 +01:00
Peter Meerwald eb03610a9c iio: Correct description how to convert microtesla to gauss
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>
2013-10-20 22:36:13 +01:00
Lars-Peter Clausen bbc1751d24 iio:st_magn: Remove redundant call to iio_sw_buffer_preenable().
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>
2013-10-16 19:13:50 +01:00
Greg Kroah-Hartman 02ab343f3b Merge 3.12-rc4 into staging-next
We want the staging fixes in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-06 17:22:43 -07:00
Denis CIOCCA 512690daa6 iio:magnetometer: Bugfix magnetometer default output registers
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-30 21:46:11 +01:00
Denis CIOCCA f60b12b02e iio:magn: Register buffer also without specific trigger
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>
2013-09-21 19:24:08 +01:00
Lee Jones 267a29b957 iio: magn-core: st: Clean up error handling in probe()
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>
2013-09-21 19:24:07 +01:00
Lars-Peter Clausen 8c60c7e75d iio: Remove unnecessary casts for iio_push_to_buffers()
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>
2013-09-15 19:05:07 +01:00
Peter Meerwald 0c0427acd5 iio: Remove unnecessary _write_raw_get_fmt() in several hid-sensor drivers
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>
2013-08-19 20:01:25 +01:00
Sachin Kamat 7fc5ad7e97 iio: magnetometer: st_magn: Use devm_iio_device_alloc
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>
2013-08-03 18:43:14 +01:00
Sachin Kamat 907c0a0ae0 iio: magnetometer: hid-sensor-magn-3d: Use devm_iio_device_alloc
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>
2013-08-03 18:43:14 +01:00
Lars-Peter Clausen 3edc84e605 iio: Add a comment to about alphabetical order to Kconfigs and Makefiles
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>
2013-08-03 18:40:36 +01:00
Alexander Holler a67c385a2e iio: hid-sensor-magn-3d: add module alias for autoload
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>
2013-08-03 18:40:35 +01:00
Peter Meerwald 341673f141 iio: reword help text of several IIO_ST drivers
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: "Denis Ciocca" <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:30 +01:00
Denis CIOCCA 23cde4d65c iio: Added ST-sensors platform data to select the DRDY interrupt pin
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>
2013-08-03 18:40:28 +01:00
Denis CIOCCA 607a568ab6 iio:common: Removed stuff macros, added num_data_channels on st_sensors 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>
2013-06-05 18:41:23 +01:00
Denis CIOCCA 762011d619 iio:common: ST_SENSORS_LSM_CHANNELS macro changed
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-04 18:53:56 +01:00
Paul Bolle 00a8d4234c iio: STMicroelectronics: remove three useless selects
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>
2013-05-22 22:16:49 +01:00
Jacek Anaszewski 94a6d5cf7c iio:ak8975 Implement data ready interrupt handling
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>
2013-05-22 22:16:49 +01:00
Jacek Anaszewski f4b7f751c6 iio:ak8975 Add support for gpios DT property
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>
2013-05-22 22:16:48 +01:00
Jonathan Cameron 2fc72cd835 iio:magnetometer:ak8975 move driver out of staging
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>
2013-04-02 18:36:47 +01:00
Jonathan Cameron ecbe18f2c3 iio:hid_sensors move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17 19:49:18 +00:00
Jonathan Cameron 8ce4a56a52 iio:st_sensors fix build when !CONFIG_IIO_TRIGGER
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>
2013-02-09 15:22:29 +00:00
Denis Ciocca 872e79add7 iio:magnetometer: Add STMicroelectronics magnetometers driver
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>
2013-01-31 17:56:43 +00:00
Greg Kroah-Hartman 8f5f90a872 Merge 3.8-rc5 into staging-next
This resolves a merge issue with a iio driver, and the zram code.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 21:25:02 -08:00
Linus Torvalds b87fc3e6e2 Staging fixes for 3.8-rc3
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>
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Merge tag 'staging-3.8-rc3' of 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
  ...
2013-01-14 09:08:38 -08:00
Greg Kroah-Hartman 17cb3be61b Merge branch 'staging-linus' into staging-next
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>
2013-01-07 15:17:52 -08:00
Alexander Holler e07c6d170c hid: iio: rename struct hid_sensor_iio_common to hid_sensor_common
The structure with common attributes for hid-sensors isn't specific
to the iio-subsystem, so rename it to hid_sensor_common.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-06 11:48:11 +00:00
Alexander Holler 2974cdf293 iio: merge hid-sensor-attributes.h into hid-sensor-hub.h
The stuff in hid-sensor-attributes.h is needed by every piece which
uses hid-sensor-hub and merging it into hid-sensor-hub.h makes it accessible
from outside the iio subdirectory.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-06 11:43:37 +00:00
Greg Kroah-Hartman fc52692c49 Drivers: iio: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, and __devexit
from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:03 -08:00
Alexander Holler 9541cc39a6 iio: hid-sensors: respect CONFIG_IIO_TRIGGER
Not much to say, without that change, hid-sensor-trigger will be
always compiled if HID_SENSOR_IIO_COMMON is selected which fails if
CONFIG_IIO_TRIGGER is not set because CONFIG_IIO_CONSUMERS_PER_TRIGGER
will not be defined.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-12-27 10:59:50 +00:00
Axel Lin 64ebe955f9 iio: hid-sensor: Return proper error if kmemdup fails
Return -ENOMEM instead of 0 if kmemdup fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-17 10:17:28 +00:00
Jonathan Cameron 84b36ce5f7 staging:iio: Add support for multiple buffers
Route all buffer writes through the demux.
Addition or removal of a buffer results in tear down and
setup of all the buffers for a given device.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
2012-11-10 10:17:21 +00:00
Lars-Peter Clausen ce56ade6ae iio: Drop timestamp parameter from buffer store_to callback
Drop timestamp parameter from buffer store_to callback and subsequently from
iio_push_to_buffer. The timestamp parameter is unused and it seems likely that
it will stay unused in the future, so it should be safe to remove it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-08 10:14:34 +01:00
Jonathan Cameron a0d7bf7dd1 staging:iio: hid-sensors Use iio_push_to_buffer
Consistently use iio_push_to_buffer instead of manually calling the buffers
store_to callback.

These crossed with Lars-Peter's patch set doing every other case.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
2012-09-07 19:09:20 +01:00
srinivas pandruvada bc1d57ba06 iio: hid-sensors: Added Compass/Magnetometer 3D
Added usage id processing for Compass 3D. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framework for registering callback
events from the sensor hub.

Signed-off-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-06 19:22:32 +01:00