linux.git/drivers/iio/pressure, branch v3.14.62

iio: Fix two mpl3115 issues in measurement conversion

2014-06-26T19:15:42+00:00

commit d29f592929489d0a7c414396fae28119f3d280e1 upstream.

(i) pressure is 20-bit unsigned, not signed; the buffer description
is incorrect; for raw reads, this is just cosmetic

(ii) temperature is 12-bit signed, not 16-bit; this affects
readout of temperatures below zero as the sign bit is incorrectly
processed

reported via private mail

Signed-off-by: Peter Meerwald 
Reported-by: Robert Deliën 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: Add Freescale MPL3115A2 pressure / temperature sensor driver

2013-11-24T21:07:13+00:00

I2C-controlled MEMS sensor with 20-bit pressure measurement (pascal) and
12-bit temperature measurement

driver only exposes basic functionality, see TODO remarks
datasheet: http://cache.freescale.com/files/sensors/doc/data_sheet/MPL3115A2.pdf

v2:
* store 20-bit value in 32-bit buffer element (instead of 24-bit)
* zero buffer to prevent kernel data leak to userspace
* fix mutex unlock in trigger handler (thanks Andi Shyti)

Signed-off-by: Peter Meerwald 
Reviewed-by: Andi Shyti 
Signed-off-by: Jonathan Cameron

iio:pressure: Adds LPS001WP support also on spi interface and Kconfig fix

2013-10-23T16:55:14+00:00

Signed-off-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron

iio:st_pressure: Remove redundant call to iio_sw_buffer_preenable().

2013-10-16T18:13:56+00:00

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 
Cc: Denis Ciocca 
Signed-off-by: Jonathan Cameron

iio: pressure-core: st: Provide support for the Vdd_IO power supply

2013-09-23T19:17:58+00:00

The power to some of the sensors are controlled by regulators. In most
cases these are 'always on', but if not they will fail to work until
the regulator is enabled using the relevant APIs. This patch allows for
the Vdd_IO power supply to be specified by either platform data or
Device Tree.

Signed-off-by: Lee Jones 
Signed-off-by: Jonathan Cameron

iio: pressure-core: st: Provide support for the Vdd power supply

2013-09-23T19:17:54+00:00

The power to some of the sensors are controlled by regulators. In most
cases these are 'always on', but if not they will fail to work until
the regulator is enabled using the relevant APIs. This patch allows for
the Vdd power supply to be specified by either platform data or Device
Tree.

Signed-off-by: Lee Jones 
Signed-off-by: Jonathan Cameron

iio:press: Register buffer also without specific trigger

2013-09-21T18:24:09+00:00

This patch fix buffer registration that allows to use generic IIO trigger.

Signed-off-by: Denis Ciocca 
Signed-off-by: Jonathan Cameron

iio: pressure: st: Add support for new LPS001WP pressure sensor

2013-09-21T18:24:05+00:00

Here we use existing practices to introduce support for another
pressure/temperature sensor, the LPS001WP.

Signed-off-by: Lee Jones 
Signed-off-by: Jonathan Cameron

iio: pressure-core: st: Clean-up probe() function

2013-09-21T18:24:05+00:00

This patch contains some pretty basic clean-ups in probe() pertaining to
the simplification of error handling and a couple of readability adaptions.

Signed-off-by: Lee Jones 
Signed-off-by: Jonathan Cameron

iio: sensors-core: st: Support sensors which don't have a Data Ready pin

2013-09-21T18:24:03+00:00

Not all ST's sensors support data ready, so let's make the declaration
of one conditional.

Signed-off-by: Lee Jones 
Signed-off-by: Jonathan Cameron