linux-toradex.git/drivers/iio/pressure, branch v4.0-rc2 Linux kernel for Apalis and Colibri modules iio: hid-sensor-press: Introduce PM 2015-01-25T22:56:00+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2015-01-07T18:56:00+00:00 a77945fd4f9af5298196345d89905d604d1fa884 Use common hid sensor iio pm functions. Also the poll time read and wait is part of power up function of hid sensor iio pm function, so remove from the client drivers. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Use common hid sensor iio pm functions. Also the poll time read and
wait is part of power up function of hid sensor iio pm function, so
remove from the client drivers.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:pressure:bmp280: cleanup 2014-12-26T10:32:34+00:00 Hartmut Knaack knaack.h@gmx.de 2014-12-19T22:59:25+00:00 44cf3798a3de3ebd8e5abe6c7fd5ee5c09b049de The calculations for temperature and pressure compensation were already slightly optimized in comparison to the datasheet. So, it makes sense to optimize even a bit more, making proper use of C operators: - variable t in bmp280_compensate_temp() can be eliminated by directly returning the result of the relevant equation. - make use of the += operator and eliminate an unnecessary parenthesis level in bmp280_compensate_press(). When the initialization of the ctrl_meas register fails, the error message will now mention the right register name. During probe, i2c_set_clientdata() is called, although it is not necessary. Drop it. Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> Reviewed-by: Vlad Dogaru <vlad.dogaru@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
The calculations for temperature and pressure compensation were already slightly
optimized in comparison to the datasheet. So, it makes sense to optimize even a
bit more, making proper use of C operators:
  - variable t in bmp280_compensate_temp() can be eliminated by directly
    returning the result of the relevant equation.
  - make use of the += operator and eliminate an unnecessary parenthesis level in
    bmp280_compensate_press().
When the initialization of the ctrl_meas register fails, the error message will
now mention the right register name.
During probe, i2c_set_clientdata() is called, although it is not necessary. Drop
it.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: bmp280: refactor compensation code 2014-12-12T12:28:25+00:00 Vlad Dogaru vlad.dogaru@intel.com 2014-11-20T12:00:48+00:00 0f8994b18afc47fd0cda20ba6162c21a093173da This version of the code avoids extra memory copy operations and is somewhat smaller in code size. Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com> Acked-by: Hartmut Knaack <knaack.h@gmx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
This version of the code avoids extra memory copy operations and is
somewhat smaller in code size.

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:pressure:bmp280: fix pressure calculation 2014-11-05T15:58:35+00:00 Hartmut Knaack knaack.h@gmx.de 2014-10-31T01:22:00+00:00 81ebe850a019ccb8bf0a429fb463d9bfc15ec298 According to the datasheet and as defined in struct bmp280_comp_press, dig_p1 is of type u16, while dig_p2 to dig_p9 are of type s16. In bmp280_read_compensation_press(), values read from the device were treated as the wrong type. In bmp280_read_press() the fractional part of the measured pressure is calculated wrong. A better way is to use *val for the raw pressure and *val2 for the quotient and let the core do the proper conversion using IIO_VAL_FRACTIONAL. Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> Acked-by: Vlad Dogaru <vlad.dogaru@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
According to the datasheet and as defined in struct bmp280_comp_press, dig_p1 is
of type u16, while dig_p2 to dig_p9 are of type s16. In
bmp280_read_compensation_press(), values read from the device were treated as
the wrong type.
In bmp280_read_press() the fractional part of the measured pressure is
calculated wrong. A better way is to use *val for the raw pressure and *val2 for
the quotient and let the core do the proper conversion using IIO_VAL_FRACTIONAL.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
bmp280: use correct routine for division 2014-10-25T09:44:54+00:00 Vlad Dogaru vlad.dogaru@intel.com 2014-10-23T14:52:00+00:00 46ee98a206c1fa6fc394791fb6188a47820a80b5 The proper way to divide two signed 64-bit values is to use div64_s64. Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
The proper way to divide two signed 64-bit values is to use div64_s64.

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: add bmp280 pressure and temperature driver 2014-10-22T19:28:27+00:00 Vlad Dogaru vlad.dogaru@intel.com 2014-10-21T08:09:58+00:00 d5c94568cc1d11dffee349468ae996e420381453 Minimal implementation, can read temperature and data using direct mode. Datasheet available at <http://ae-bst.resource.bosch.com/media/products/dokumente/bmp280/BST-BMP280-DS001-09.pdf> Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Minimal implementation, can read temperature and data using direct mode.

Datasheet available at
<http://ae-bst.resource.bosch.com/media/products/dokumente/bmp280/BST-BMP280-DS001-09.pdf>

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:common: Set the device pointer into ST common sensors library 2014-10-04T10:26:21+00:00 Denis CIOCCA denis.ciocca@st.com 2014-10-03T15:35:41+00:00 7be178bb48bc3ed5af2f6cfdb69074dba4bd87b9 Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:pressure: Changed pressure data variable name to press_data 2014-10-04T10:26:09+00:00 Denis CIOCCA denis.ciocca@st.com 2014-10-03T15:35:40+00:00 a1dcf42927a3eebe749b14178441889ef3887ceb This patch fix pressure data variable name. Usually pdata name it is used for platform data. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
This patch fix pressure data variable name. Usually pdata name
it is used for platform data.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:pressure: Removed unnecessary parameter on common_probe function 2014-10-04T10:25:38+00:00 Denis CIOCCA denis.ciocca@st.com 2014-10-03T15:35:39+00:00 0baa3fc1b6c1e928260ca099cbdf551ced2cbfa3 Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> 
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:imu: changed structure name from st_sensors to st_sensor_settings 2014-10-04T10:23:13+00:00 Denis CIOCCA denis.ciocca@st.com 2014-10-03T15:35:35+00:00 a7ee8839daf21c4a3ca439733e7bed25f32e7954 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> 
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>