Commit Graph

8 Commits

Author SHA1 Message Date
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
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.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJS+R3TAAoJEFSFNJnE9BaILtoP/RiZaeAQe5hKVtS7DBNmtbvH
 NVrk4SDl8F5WH6O6MKvRn54aBWyPj3axyMb0WLv9oGQycxlflT/420Q1UaayG4oX
 W1IOS/X2JNrWpt/xlNPi8crqpcRZbLVjKoRGhw0BMR9OTD+x6U+NTNGpr9WJUNAB
 CjmYpa6MhouQMd59+HMroSf1PIvBfvG2fkAMg2AoRSQ6TU19q5Yi0zzqwS17iZf3
 VTazh63dVKYyt3MJimjnGcA4A2kv5YOrfK59qYfHPIVR4AfKNVKlwVQlu8TlBaXE
 eYr2G1Jbd/GRkUe5FRGL9Nlnl8exnUU8JGCTpeXSJSmDWAe2xVkjTNbDDyrT5Gem
 6c02ms0xYeIxqzYpZVZs8OueuZhs2DztcT0e+p7ByvjBZ+XvMEp9t00DnsV3rSEa
 Y9X1vpeZei5bRW+woKCniEhV/89seUe1ASyj/g8yiPYc5b1mKhcUQKFs1vCToWjV
 v0MEp15569jeqX+6igOAloArxykrdmS4hAeMfyKoijApd97n5hkK2jwjFxRv9rZs
 2Q+2qTDA/3E9+wRjLrx4v+Bu6EKH44K5Z5H5rPmnsgRe8/0UQx4xvhI6Bv2Krx0v
 CKdwNAo6Z5iePAtmaMU46l9h1AygOAzub9V2L36Irxd4BFLLYUj1zSW2hN1zgfCX
 4YTgPtTGZ/lBfNsvBy9b
 =nSiE
 -----END PGP SIGNATURE-----

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 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
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