Commit Graph

603022 Commits

Author SHA1 Message Date
Alison Schofield
d02ec00d00 iio: adc: ad7298: use iio helper function to guarantee direct mode
Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-24 19:58:42 +01:00
Alison Schofield
b4d46409d6 iio: adc: ad7793: use iio helper function to guarantee direct mode
Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-24 19:58:41 +01:00
Christophe Chapuis
4d19c48755 iio: accel: kxcjk-1013: add the "KIOX000A" ACPI id
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: Christophe Chapuis <chris.chapuis@gmail.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-24 19:58:40 +01:00
Alison Schofield
b75b23bc59 staging: iio: light: isl29018/28: remove I2C_CLASS_HWMON .class setting
I2C_CLASS_HWMON is for a hardware monitoring chip wanting
auto-detection.  IIO drivers don't typically use .class.
Remove it.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-24 19:58:40 +01:00
Peter Meerwald-Stadler
f612770432 staging: iio: isl29028: Prefix functions
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:51:12 +01:00
Peter Meerwald-Stadler
b9b689c127 staging: iio: isl29028: Expose scale and sample frequency available without comma
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:50:28 +01:00
Peter Meerwald-Stadler
bafaa6debe staging: iio: isl29028: Prefix stuff
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:49:56 +01:00
Peter Meerwald-Stadler
3a37f1c259 staging: iio: isl29028: Prefix #defines
and drop unused PROX_DRIVE

Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:49:27 +01:00
Peter Meerwald-Stadler
9219376d04 staging: iio: isl29018: Prefix remaining functions
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:49:21 +01:00
Peter Meerwald-Stadler
96273f43a8 staging: iio: isl29018: Cleanup of comments
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:48:40 +01:00
Peter Meerwald-Stadler
c833c6926a staging: iio: isl29018: Drop newlines
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:48:38 +01:00
Peter Meerwald-Stadler
ab5b9492c0 staging: iio: isl29018: Remove excessive output messages
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:48:35 +01:00
Peter Meerwald-Stadler
13e6d634c1 staging: iio: isl29018: Prefix #defines
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:48:29 +01:00
Peter Meerwald-Stadler
ff34ed6d78 iio: light: vcnl4000: Add missing locking
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:44:06 +01:00
Peter Meerwald-Stadler
5d6931393f iio: light: vcnl4000: Cleanup read_raw() returns
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:44:05 +01:00
Peter Meerwald-Stadler
ff6a52590c iio: light: vcnl4000: Use BIT() macro
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:44:05 +01:00
Peter Meerwald-Stadler
d978bfdd0c iio: light: vcnl4000: Mention and check support for VCNL4010 and VCNL4020
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: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:44:04 +01:00
Matt Ranostay
1f25ca11d8 iio: temperature: add support for Maxim thermocouple chips
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: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-10 14:44:03 +01:00
Bijosh Thykkoottathil
0ddfd85713 drivers:iio:accel:mma8452: removed unwanted return statements
Removed unwanted return statements from the function
mma8452_set_freefall_mode.

Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-05 21:05:01 +01:00
Bijosh Thykkoottathil
1a965d405f drivers:iio:accel:mma8452: added cleanup provision in case of failure.
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: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
Acked-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-05 21:03:40 +01:00
Jonathan Cameron
21d41655f5 iio: Add iio.git tree to MAINTAINERS
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: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:19:16 +01:00
Gregor Boirie
060a518eda iio:st_pressure: clean useless static channel initializers
Some static channels are explicitly initialized with default values.
Remove them to enhance readability.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:13:54 +01:00
Gregor Boirie
85d79136d3 iio:st_pressure:lps22hb: temperature support
Implement lps22hb temperature sampling channel.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:13:02 +01:00
Gregor Boirie
05167cdce0 iio:st_pressure:lps22hb: open drain support
Add support for open drain interrupt line.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:12:21 +01:00
Gregor Boirie
b4701fd692 iio:st_pressure: temperature triggered buffering
Enable support for triggered buffering of temperature samples.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:11:52 +01:00
Gregor Boirie
19b7b8a89b iio:st_pressure: document sampling gains
Details scaling factors and offsets applied to raw temperature and pressure
samples.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:11:26 +01:00
Gregor Boirie
c9d5e5b97e iio:st_pressure: align storagebits on power of 2
Sampled pressure data are 24 bits long and should be stored in a 32 bits
word.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:11:07 +01:00
Gregor Boirie
e7385de529 iio:st_sensors: align on storagebits boundaries
Ensure triggered buffering memory accesses are properly aligned on per
channel storagebits boundaries.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:07:45 +01:00
Jonathan Cameron
fc6bd7275b staging:iio:lis3l02dq drop separate driver
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: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:07:45 +01:00
Jonathan Cameron
4e68cfbf34 iio: accel: st_accel: Add lis3l02dq support
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: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Cc: Crestez Dan Leonard <leonard.crestez@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04 18:07:44 +01:00
Matt Ranostay
b541eaff49 iio: adc: add missing of_node references to iio_dev
Adding missing indio_dev->dev.of_node references to allow iio consumers
to access the device channels.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 13:40:08 +01:00
Matt Ranostay
f5241dbdfe iio: adc: ti-ads1015: add indio_dev->dev.of_node reference
Add the pointer to the device tree node of the ADC so that iio
consumers can reference the respective channels.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 13:12:46 +01:00
Florian Vaussard
3629153ce1 iio: potentiometer: Fix typo in Kconfig
Fix s/potentiomenter/potentiometer/.

Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:40:01 +01:00
Florian Vaussard
2dc2e1899e iio: potentiometer: mcp4531: Add device tree binding
This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.

Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:40:00 +01:00
Florian Vaussard
deec2fadff iio: potentiometer: mcp4531: Add device tree binding documentation
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: Florian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:59 +01:00
Florian Vaussard
294ea6f3a1 iio: potentiometer: mcp4531: Add support for MCP454x, MCP456x, MCP464x and MCP466x
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: Florian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:58 +01:00
Gregor Boirie
468c5620d0 iio:imu:mpu6050: icm20608 initial support
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-20608-2

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:57 +01:00
Florian Vaussard
152c9aa00d iio: adc: max1363: Add device tree binding
This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.

Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:56 +01:00
Florian Vaussard
55389e8bc5 iio: adc: max1363: Add device tree binding documentation
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: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:56 +01:00
Steffen Trumtrar
bf61f5d226 iio: bmg160: add callbacks for the filter frequency
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: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 12:39:55 +01:00
Raveendra Padasalagi
4324c97ece iio: Add driver for Broadcom iproc-static-adc
This patch adds basic driver implementation for Broadcom's
static adc controller used in iProc SoC's family.

Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:32:30 +01:00
Raveendra Padasalagi
d3c4d0ab3b Documentation: DT: Add iproc-static-adc binding
The patch adds devicetree binding document for broadcom's
iproc-static-adc controller driver.

Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:32:16 +01:00
Linus Walleij
b33b7d5ac3 iio: pressure: bmp280: read calibration data once
The calibration data is described as coming from an E2PROM and that
means it does not change. Just read it once at probe time and store
it in the device state container. Also toss the calibration data
into the entropy pool since it is device unique.

Reviewed-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:32:15 +01:00
Linus Walleij
3d838118c6 iio: pressure: bmp280: add power management
The PM280 has an internal standby-mode, but to really save power
we should shut the sensor down and disconnect the power. With
the proper .pm hooks we can enable both runtime and system power
management of the sensor. We use the *force callbacks from the
system PM hooks. When the sensor comes back we always reconfigure
it to make sure it is ready to roll as expected.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:32:14 +01:00
Linus Walleij
aae9539496 iio: pressure: bmp280: add support for BMP085 EOC interrupt
The first version of this sensor, BMP085, supports sending an
End-of-Conversion (EOC) interrupt. Add code to support this using
a completion, in a similar vein as drivers/misc/bmp085.c does.

Make sure to check that we are given a rising edge, because the
EOC line goes from low-to-high when the conversion is ready.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:32:14 +01:00
Linus Walleij
b26b4e9170 iio: pressure: bmp280: add SPI interface driver
This patch mimics the SPI functionality found in the misc driver in
drivers/misc/bh085-spi.c to make it possible to reuse the existing
BMP280/BMP180/BMP085 driver with all clients of the other driver.
The adoption is straight-forward since like the other driver, it is
a simple matter of using regmap.

This driver is also so obviously inspired/copied from the old misc
driver in drivers/misc/bmp085.c that I just took the liberty to
add in the authors of the other drivers + self in the core driver
file.

The MISC driver also supports a variant named "BMP181" so include
that here to be complete in comparison to the old driver.

The bus mapping code for SPI was written by Akinobu Mita.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:27:15 +01:00
Linus Walleij
17118843a5 iio: pressure: bmp280: split off an I2C Kconfig entry
This creates a separate BMP280_I2C Kconfig entry that gets selected
by BMP280 for I2C transport. As we currently only support I2C
transport there is not much practical change other than getting
a separate object file (or module) for the I2C driver part. The
old Kconfig symbol BMP280 will still select the stuff we need so
that oldconfig and old defconfigs works fine.

Tested-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:27:14 +01:00
Linus Walleij
14e8015f85 iio: pressure: bmp280: split driver in logical parts
This splits the BMP280 driver in three logical parts: the core driver
bmp280-core that only operated on a struct device * and a struct regmap *,
the regmap driver bmp280-regmap that can be shared between I2C and other
transports and the I2C module driver bmp280-i2c.

Cleverly bake all functionality into a single object bmp280.o so that
we still get the same module binary built for the device in the end,
without any fuzz exporting symbols to the left and right.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:27:11 +01:00
Linus Walleij
bd525e6c75 iio: pressure: bmp280: support supply regulators
The BMP085/BMP180/BMP280 is supplied with two power sources:
VDDA (analog power) and VDDD (digital power). As these may come
from regulators (as on the APQ8060 Dragonboard) we need the driver
to attempt to fetch and enable these regulators.

We FAIL if we cannot: boards should either define:
- Proper regulators if present
- Define fixed regulators if power is hardwired to the component
- Rely on dummy regulators (will be present on all DT systems and
  any boardfile system that calls regulator_has_full_constraints().

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 11:26:24 +01:00
Bijosh Thykkoottathil
60b1addba2 drivers:iio:light:isl29125: added macros for sensing range
Added macros for sensing range as the corresponding magic numbers
were used at multiple places.
   - ISL29125_SENSING_RANGE_0 for 375 lux full range
   - ISL29125_SENSING_RANGE_1 for 10k lux full range

Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03 10:19:54 +01:00