Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.
Signed-off-by: NAlison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

On the Cube i9 tablet, the ACPI id for the Kionix kxcj9 accelerometer is
"KIOX000A" (as can be seen in the DSDT of the Cube i9 tablet).
It is the same accelerometer, so only adding the ACPI id is needed.
Signed-off-by: NChristophe Chapuis <chris.chapuis@gmail.com>
Reviewed-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

I2C_CLASS_HWMON is for a hardware monitoring chip wanting
auto-detection.  IIO drivers don't typically use .class.
Remove it.
Signed-off-by: NAlison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Acked-by: NLaxman Dewangan <ldewangan@nvidia.com>
Acked-by: NWolfram Sang <wsa@the-dreams.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

and drop unused PROX_DRIVE
Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

VCNL4000, VCNL4010 and VCNL4020 chips are fairly compatible from a software
point of view, added features are not yet supported by the driver

patch adds a check for the product ID and demotes the corresponding
dev_info() to dev_dbg()
Signed-off-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add initial driver support for MAX6675, and MAX31855 thermocouple chips.

Cc: Marek Vasut <marex@denx.de>
Cc: Matt Porter <mporter@konsulko.com>
Signed-off-by: NMatt Ranostay <mranostay@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Removed unwanted return statements from the function
mma8452_set_freefall_mode.
Signed-off-by: NBijosh Thykkoottathil <bijosh.t@hotmail.com>
Acked-by: NMartin Kepplinger <martink@posteo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

mma8452_set_freefall_mode can return -ve value in case if
i2c_smbus_read_byte_data fails. This function is called from mma8452_probe,
and returning -ve value from probe indicates probe failure. Need to call
iio_triggered_buffer_cleanup & iio_trigger_cleanup in this case.
Signed-off-by: NBijosh Thykkoottathil <bijosh.t@hotmail.com>
Acked-by: NMartin Kepplinger <martink@posteo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The tree has been in the same location for a long time.  Putting it in
MAINTAINERS makes it easy for those new to, or less familiar with IIO
to find the correct tree to base patches on.

Mostly basing on staging-next is fine as well unless working on a very
active driver.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Some static channels are explicitly initialized with default values.
Remove them to enhance readability.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Implement lps22hb temperature sampling channel.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add support for open drain interrupt line.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Enable support for triggered buffering of temperature samples.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Details scaling factors and offsets applied to raw temperature and pressure
samples.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Sampled pressure data are 24 bits long and should be stored in a 32 bits
word.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Ensure triggered buffering memory accesses are properly aligned on per
channel storagebits boundaries.
Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Tested-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Retire this venerable driver as the basic support is now in the
generic st-sensors accelerometer driver.

There are a few missing features in the new driver:
* Threshold events.
* Access to the calibration adjustment registers (patch shortly)

In exchange it brings a cleaner and more maintainable code base that actually
gets tested more than once every few years.  I'll actually be suprised
if anyone other than me has a board with one of these on that is running
an up to date kernel.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Time to finally kill off the venerable (it was one of my first drivers)
lis3l02dq driver in favour of adding support in the st sensors framework.

This does loose us the event support that driver always had, but I think
that will reappear at some point and in the meantime the maintenance
advantages of dropping the 'special' driver for this one part outweigh
the issues.

It's worth noting this part is ancient and I may well be the only person
who still has any on hardware running recent kernels.

It has a few 'quirks'.
 - No WAI register so that just became optional.
 - A BDU option that really does block updates.  Completely.
   Whatever you do, you don't get any more data with it set.
   It is documented the same as more modern parts but I presume they
   are actually clearing for updates after a read of both bytes!
 - Fixed scale.
 - It's too quick.  Even at slowest rate (280Hz) I can't read out fast
   enough on my board (stargate 2) to beat new data coming in. Linus'
   repeat read patch doesn't help in this case. It just means I get 10
   readings before dying... So in reality this will get used with
   software triggers only unless someone has this long out of production
   device on a quick board.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Cc: Crestez Dan Leonard <leonard.crestez@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Adding missing indio_dev->dev.of_node references to allow iio consumers
to access the device channels.
Signed-off-by: NMatt Ranostay <mranostay@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add the pointer to the device tree node of the ADC so that iio
consumers can reference the respective channels.
Signed-off-by: NMatt Ranostay <mranostay@gmail.com>
Acked-by: NDaniel Baluta <daniel.baluta@intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Fix s/potentiomenter/potentiometer/.
Suggested-by: NPeter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NPeter Rosin <peda@axentia.se>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add the device tree documentation for all the supported parts. Apart the
compatible string and standard I2C binding, no other binding is currently
needed.
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds support for MCP454x, MCP456x, MCP464x and MCP466x parts.
The main difference with currently supported parts (MCP453x and alike) is
the addition of a non-volatile memory in order to recall the wiper setting
at power-on. This feature is currently not supported and only the
volatile memory is used to set the wiper.
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NPeter Rosin <peda@axentia.se>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Introduce support for Invense ICM20608 IMU, a 6-axis motion tracking device
that combines a 3-axis gyroscope and a 3-axis accelerometer:
http://www.invensense.com/products/motion-tracking/6-axis/icm-20608-2Signed-off-by: NGregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Add the device tree documentation for all the supported parts. Mandatory
binding is the compatible string and the slave I2C address.

Optional properties can be used to specify the Vcc / Vref regulators, as
well as the IRQ line if available.
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The filter frequency and sample rate have a fixed relationship.
Only the filter frequency is unique, however.
Currently the driver ignores the filter settings for 32 Hz and
64 Hz.

This patch adds the necessary callbacks to be able to configure
and read the filter setting from sysfs.
Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This patch adds basic driver implementation for Broadcom's
static adc controller used in iProc SoC's family.
Signed-off-by: NRaveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: NRay Jui <ray.jui@broadcom.com>
Reviewed-by: NScott Branden <scott.branden@broadcom.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>