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9 years agoiio: light: Add support for UPISEMI uS5182d als and proximity sensor
Adriana Reus [Wed, 16 Sep 2015 08:14:11 +0000 (11:14 +0300)]
iio: light: Add support for UPISEMI uS5182d als and proximity sensor

Add support for UPISEMI us5182d als and proximity sensor.
Supports raw readings.
Data sheet for this device can be found here:
http://www.upi-semi.com/temp/uS5182D-DS-P0103-temp.pdf

Signed-off-by: Adriana Reus <adriana.reus@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoStaging: iio: Move evgen interrupt generation to irq_work
Cristina Opriceana [Fri, 11 Sep 2015 13:59:30 +0000 (16:59 +0300)]
Staging: iio: Move evgen interrupt generation to irq_work

Enhance interrupt generation in the dummy driver and expand its usage
by introducing the irq_work infrastructure to trigger an interrupt.

This way, the irq_work_queue() wrapper permits calling both of the top
half and threaded part from a hard irq context, unlike handle_nested_irq(),
which only calls the threaded part.

As an outcome, the driver succeeds in simulating real hardware
interrupts, while keeping the normal interrupt flow.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: chemical: add SGX VZ89x VOC sensor support
Matt Ranostay [Mon, 14 Sep 2015 03:26:14 +0000 (20:26 -0700)]
iio: chemical: add SGX VZ89x VOC sensor support

Add support for VZ89X sensors VOC and CO2 reporting channels in
percentage which can be converted to part per million.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agodevicetree: add SGX Sensortech vendor id
Matt Ranostay [Mon, 14 Sep 2015 03:26:13 +0000 (20:26 -0700)]
devicetree: add SGX Sensortech vendor id

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: resistance: add IIO_RESISTANCE channel type
Matt Ranostay [Mon, 14 Sep 2015 03:26:12 +0000 (20:26 -0700)]
iio: resistance: add IIO_RESISTANCE channel type

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: chemical: Add IIO_CONCENTRATION channel type
Matt Ranostay [Mon, 14 Sep 2015 03:26:11 +0000 (20:26 -0700)]
iio: chemical: Add IIO_CONCENTRATION channel type

There are air quality sensors that report data back in parts per million
of VOC (Volatile Organic Compounds) which are usually indexed from CO2
or another common pollutant.

This patchset adds an IIO_CONCENTRATION type that returns a percentage
of substance because no other channels types fit this use case.
Modifiers for IIO_MOD_CO2 and IIO_MOD_VOC gas types are defined.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: twl6030-gpadc: Fix module autoload for OF platform driver
Luis de Bethencourt [Thu, 17 Sep 2015 17:02:00 +0000 (19:02 +0200)]
iio: adc: twl6030-gpadc: Fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: dac: max5821: Fix module autoload for OF platform driver
Luis de Bethencourt [Thu, 17 Sep 2015 17:02:32 +0000 (19:02 +0200)]
iio: dac: max5821: Fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: leave sysfs namings to the iio core
Martin Kepplinger [Tue, 1 Sep 2015 11:45:13 +0000 (13:45 +0200)]
iio: mma8452: leave sysfs namings to the iio core

This doesn't actually change anything since the core names the sysfs folder
for the iio event attributes "events" anyways. It only leaves the job to the
core.

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: add copyright notice comment
Martin Kepplinger [Tue, 1 Sep 2015 11:45:12 +0000 (13:45 +0200)]
iio: mma8452: add copyright notice comment

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: add support for MMA8652FC and MMA8653FC
Martin Kepplinger [Tue, 1 Sep 2015 11:45:11 +0000 (13:45 +0200)]
iio: mma8452: add support for MMA8652FC and MMA8653FC

MMA8652FC and MMA8653FC don't provide the transient interrupt source, so
the motion interrupt source is used by providing a new iio_chan_spec
definition, so that other supported devices are not affected by this.

Datasheets for the newly supported devices are available at Freescale's
website:

http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8652FC.pdf
http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8653FC.pdf

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: add freefall / motion interrupt source
Martin Kepplinger [Tue, 1 Sep 2015 11:45:10 +0000 (13:45 +0200)]
iio: mma8452: add freefall / motion interrupt source

This adds the freefall / motion interrupt source definitions to the driver.
It is used in this series' next patch, for chips that don't support the
transient interrupt source.

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: add support for MMA8453Q accelerometer chip
Martin Kepplinger [Tue, 1 Sep 2015 11:45:09 +0000 (13:45 +0200)]
iio: mma8452: add support for MMA8453Q accelerometer chip

This adds support for the 10 bit version if Freescale's accelerometers
of this series. The datasheet is available at Freescale's website:

http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8453Q.pdf

It creates a devicetree bindings file to document the new functionality
and removes the driver from the trivial-devices list.

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mma8452: refactor for seperating chip specific data
Martin Kepplinger [Tue, 1 Sep 2015 11:45:08 +0000 (13:45 +0200)]
iio: mma8452: refactor for seperating chip specific data

This adds a struct mma_chip_info to hold data that will remain specific to
the chip in use. It is provided during probe() and linked in
struct of_device_id.

Also this suggests that the driver is called "mma8452" and now handles the
MMA8452Q device, but is not limited to it.

Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoStaging: iio: addac: Prefer using the BIT macro
Shraddha Barke [Thu, 10 Sep 2015 16:30:29 +0000 (22:00 +0530)]
Staging: iio: addac: Prefer using the BIT macro

This patch replaces bit shifting on 1 with the BIT(x) macro.

This was done with coccinelle:

@@ int g; @@

-(1 << g)
+BIT(g)

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoStaging: iio: meter: Prefer using the BIT macro
Shraddha Barke [Thu, 10 Sep 2015 16:30:30 +0000 (22:00 +0530)]
Staging: iio: meter: Prefer using the BIT macro

This patch replaces bit shifting on 1 with the BIT(x) macro

This was done with coccinelle:
@@ int g; @@

-(1 << g)
+BIT(g)

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: humidity: add HDC100x support
Matt Ranostay [Sun, 6 Sep 2015 20:27:39 +0000 (13:27 -0700)]
iio: humidity: add HDC100x support

Add support for the HDC100x temperature and humidity sensors
including the resistive heater element.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agodt: Document Holt HI-8435 bindings
Vladimir Barinov [Fri, 28 Aug 2015 14:28:20 +0000 (17:28 +0300)]
dt: Document Holt HI-8435 bindings

These bindings can be used to register Holt HI-8435 threshold detector

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: hi8435: Holt HI-8435 threshold detector
Vladimir Barinov [Fri, 28 Aug 2015 14:27:52 +0000 (17:27 +0300)]
iio: adc: hi8435: Holt HI-8435 threshold detector

Add Holt threshold detector driver for HI-8435 chip

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mxc4005: add data ready trigger for mxc4005
Teodora Baluta [Thu, 20 Aug 2015 14:37:33 +0000 (17:37 +0300)]
iio: mxc4005: add data ready trigger for mxc4005

Add iio trigger for the data ready interrupt that signals new
measurements for the X, Y and Z axes.

Signed-off-by: Teodora Baluta <teodora.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mxc4005: add triggered buffer mode for mxc4005
Teodora Baluta [Thu, 20 Aug 2015 14:37:32 +0000 (17:37 +0300)]
iio: mxc4005: add triggered buffer mode for mxc4005

This patch adds support for buffered readings for the 3-axis
accelerometer mxc4005.

Signed-off-by: Teodora Baluta <teodora.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: accel: add support for mxc4005 accelerometer
Teodora Baluta [Thu, 20 Aug 2015 14:37:31 +0000 (17:37 +0300)]
iio: accel: add support for mxc4005 accelerometer

This patch adds support for Memsic MXC4005XC 3-axis accelerometer. The
current implementation is a minimal one as it adds raw readings for the
three axes and setting scale from userspace.

Signed-off-by: Teodora Baluta <teodora.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Add SPI driver
Markus Pargmann [Wed, 19 Aug 2015 12:12:46 +0000 (14:12 +0200)]
iio: bmg160: Add SPI driver

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Separate i2c and core driver
Markus Pargmann [Wed, 19 Aug 2015 12:12:45 +0000 (14:12 +0200)]
iio: bmg160: Separate i2c and core driver

This patch separates the core driver using regmap and the i2c driver
which creates the i2c regmap. Also in the Kconfig file BMG160 and
BMG160_I2C are separate now.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: proximity: add support for PulsedLight LIDAR
Matt Ranostay [Tue, 18 Aug 2015 14:40:38 +0000 (07:40 -0700)]
iio: proximity: add support for PulsedLight LIDAR

Add support for the PulsedLight LIDAR rangefinder sensor which allows
high speed (over 300Hz) distance measurements using Barker Coding within
40 meter range.

Support only tested on the "blue label" rev 2, but may work using low
sample frequencies on the original version.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agodevicetree: add PulsedLight vendor + device docs
Matt Ranostay [Tue, 18 Aug 2015 14:40:37 +0000 (07:40 -0700)]
devicetree: add PulsedLight vendor + device docs

Add pulsedlight vendor to vendor-prefixes.txt, and LIDAR device
documentation to trivial-devices.txt

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: tsl4531: fix error handling in tsl4531_check_id()
Dan Carpenter [Tue, 18 Aug 2015 09:16:33 +0000 (12:16 +0300)]
iio: tsl4531: fix error handling in tsl4531_check_id()

The tsl4531_check_id() function returned 1 on "found" and 0 on "not
found" and negative error codes on failure.  This was non-standard and
bug prone.  The caller treated all non-zero values including error codes
as "found".

This patch fixes it by changing the tsl4531_check_id() to return zero on
success or a negative error code, and updates the caller.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: light: add APDS9960 ALS + promixity driver
Matt Ranostay [Mon, 17 Aug 2015 17:30:16 +0000 (10:30 -0700)]
iio: light: add APDS9960 ALS + promixity driver

APDS9960 is a combination of ALS, proximity, and gesture sensors.

This patch adds support for these functions along with gain control,
integration time, and event thresholds.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: light: DT binding docs for APDS9960 driver
Matt Ranostay [Mon, 17 Aug 2015 17:30:15 +0000 (10:30 -0700)]
iio: light: DT binding docs for APDS9960 driver

Document compatible string, and required DT properties for APDS9960
chipset driver.

Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: vf610: Add IIO buffer support for Vybrid ADC
Sanchayan Maity [Mon, 17 Aug 2015 15:51:40 +0000 (21:21 +0530)]
iio: adc: vf610: Add IIO buffer support for Vybrid ADC

This patch adds support for IIO buffer to the Vybrid ADC driver.
IIO triggered buffer infrastructure along with iio sysfs trigger
is used to leverage continuous sampling support provided by the
ADC block.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agostaging: iio: adc: lpc32xx: use correct reutrn value
Peng Fan [Sun, 30 Aug 2015 08:12:57 +0000 (16:12 +0800)]
staging: iio: adc: lpc32xx: use correct reutrn value

To lpc32xx_adc driver, when platform_get_resource or
platform_get_irq failed, we should use -ENXIO as a
return value, but not -EBUSY.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: light: fix platform_no_drv_owner.cocci warnings
kbuild test robot [Sun, 30 Aug 2015 08:46:57 +0000 (16:46 +0800)]
iio: light: fix platform_no_drv_owner.cocci warnings

drivers/iio/light/opt3001.c:796:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

CC: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agodt: Add vendor prefix 'holt'
Vladimir Barinov [Thu, 20 Aug 2015 19:38:08 +0000 (22:38 +0300)]
dt: Add vendor prefix 'holt'

Add Holt Integrated Circuits, Inc. to the list of device tree vendor
prefixes

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: Support triggered events
Vladimir Barinov [Thu, 20 Aug 2015 19:37:39 +0000 (22:37 +0300)]
iio: Support triggered events

Support triggered events.

This is useful for chips that don't have their own interrupt sources.
It allows to use generic/standalone iio triggers for those drivers.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: mlx90614: Implement filter configuration
Crt Mori [Mon, 17 Aug 2015 17:34:33 +0000 (19:34 +0200)]
iio: mlx90614: Implement filter configuration

Implemented Low pass 3db frequency filter which configures
FIR and IIR values within the configuration register of EEPROM.
For more standardized interface we have fixed the FIR value
to 1024, while changes in IIR value are directly connected to
filter responses. The new datasheet version will provide a
simplified table (also in reStructured text format below) with
this change, to provide quick overview of possible settings.

Below sensor timings (bandwidth) are calculated for 3db frequency
low pass filter.

+--------------------+-----------------+
| Filter setting (%) | Band width (Hz) |
|  (rounded to 1.0)  |                 |
+====================+=================+
|         13         |      0.15       |
+--------------------+-----------------+
|         17         |      0.20       |
+--------------------+-----------------+
|         25         |      0.31       |
+--------------------+-----------------+
|         50         |      0.77       |
+--------------------+-----------------+
|         57         |      0.86       |
+--------------------+-----------------+
|         67         |      1.10       |
+--------------------+-----------------+
|         80         |      1.53       |
+--------------------+-----------------+
|        100         |      7.23       |
+--------------------+-----------------+

The diff is made towards togreg branch. Added myself to MAINTAINERS and
authors as per discussion with Jonathan.

Signed-off-by: Crt Mori <cmo@melexis.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: humidity: si7020: replaced bitmask on humidity values with range check
Nicola Corna [Sun, 23 Aug 2015 21:06:19 +0000 (23:06 +0200)]
iio: humidity: si7020: replaced bitmask on humidity values with range check

The maximum possible value for the relative humidity is 55575 (100%RH).
This value, if shifted right by 2 bits, uses 14 bits and masking it with
a 12 bit mask removes 2 meaningful bits.
The masking has been replaced with a range check that sets the minimum
value at 786 (0%RH) and the maximum at 13893 (99.998%RH).

Signed-off-by: Nicola Corna <nicola@corna.info>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: mcp320x: Set struct spi_driver .of_match_table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:26 +0000 (09:07 +0200)]
iio: adc: mcp320x: Set struct spi_driver .of_match_table

The driver has an OF id table but the .of_match_table is not set so
the SPI core can't do an OF style match and the table was unused.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: Export SPI module alias information in missing drivers
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:14 +0000 (09:07 +0200)]
iio: Export SPI module alias information in missing drivers

The SPI core always reports the MODALIAS uevent as "spi:<modalias>"
regardless of the mechanism that was used to register the device
(i.e: OF or board code) and the table that is used later to match
the driver with the device (i.e: SPI id table or OF match table).

So drivers needs to export the SPI id table and this be built into
the module or udev won't have the necessary information to autoload
the needed driver module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: dac: ad7303: Add OF match table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:23 +0000 (09:07 +0200)]
iio: dac: ad7303: Add OF match table

The Documentation/devicetree/bindings/iio/dac/ad7303.txt DT binding doc
lists "adi,ad7303" as a compatible string but the corresponding driver
does not have an OF match table. Add the table to the driver so the SPI
core can do an OF style match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: frequency: adf4350: Add OF match table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:29 +0000 (09:07 +0200)]
iio: frequency: adf4350: Add OF match table

The Documentation/devicetree/bindings/iio/frequency/adf4350.txt DT binding
doc lists "adi,adf4350" or "adi,adf4351" as compatible strings but the
corresponding driver does not have an OF match table. Add the table to the
driver so the SPI core can do an OF style match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc128s052: Add OF match table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:28 +0000 (09:07 +0200)]
iio: adc128s052: Add OF match table

The Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt DT binding
doc lists "ti,adc128s052" or "ti,adc122s021" as compatible strings but the
corresponding driver does not have an OF match table. Add the table to the
driver so the SPI core can do an OF style match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: as3935: Add OF match table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:27 +0000 (09:07 +0200)]
iio: as3935: Add OF match table

The Documentation/devicetree/bindings/iio/proximity/as3935.txt DT binding
doc lists "ams,as3935" as a compatible string but the corresponding driver
does not have an OF match table. Add the table to the driver so the SPI
core can do an OF style match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: max1027: Set struct spi_driver .of_match_table
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:24 +0000 (09:07 +0200)]
iio: adc: max1027: Set struct spi_driver .of_match_table

The driver has an OF id table but the .of_match_table is not set so
the SPI core can't do an OF style match and the table was unused.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agostaging: iio: hmc5843: Export missing SPI module alias information
Javier Martinez Canillas [Thu, 20 Aug 2015 07:07:15 +0000 (09:07 +0200)]
staging: iio: hmc5843: Export missing SPI module alias information

The SPI core always reports the MODALIAS uevent as "spi:<modalias>"
regardless of the mechanism that was used to register the device
(i.e: OF or board code) and the table that is used later to match
the driver with the device (i.e: SPI id table or OF match table).

So drivers needs to export the SPI id table and this be built into
the module or udev won't have the necessary information to autoload
the needed driver module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoStaging: iio: trigger: Use braces on both branches of if statement
Cristina Opriceana [Tue, 11 Aug 2015 10:20:53 +0000 (13:20 +0300)]
Staging: iio: trigger: Use braces on both branches of if statement

Fix style issue related to missing braces, detected by checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoStaging: iio: trigger: Alignment should match open parenthesis
Cristina Opriceana [Tue, 11 Aug 2015 10:18:18 +0000 (13:18 +0300)]
Staging: iio: trigger: Alignment should match open parenthesis

Fix alignment for function parameters as suggested by checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: adc: xilinx-xadc: Push interrupts into hardirq context
Xander Huff [Tue, 11 Aug 2015 23:00:49 +0000 (18:00 -0500)]
iio: adc: xilinx-xadc: Push interrupts into hardirq context

The driver currently registers a pair of irq handlers using
request_threaded_irq(), however the synchronization mechanism between the
hardirq and the threadedirq handler is a regular spinlock.

Unfortunately, this breaks PREEMPT_RT builds, where a spinlock can sleep,
and is thus not able to be acquired from a hardirq handler. This patch gets
rid of the threaded handler and pushes all interrupt handling into the
hardirq context, and uses request_irq().

To validate that this change has no impact on RT performance, here are
cyclictest values with no processes running:

$ sudo cyclictest -S -m -p 98
policy: fifo: loadavg: 0.00 0.01 0.05 1/174 2539
T: 0 ( 1405) P:98 I:1000 C:167010520 Min: 9 Act: 12 Avg: 12 Max: 75
T: 1 ( 1862) P:98 I:1500 C:111340339 Min: 9 Act: 12 Avg: 12 Max: 73

Then, all xadc raw handles were accessed in a continuous loop via
/sys/bus/iio/devices/iio:device0:

$ sudo cyclictest -S -m -p 98
policy: fifo: loadavg: 7.84 7.70 7.63 3/182 4260
T: 0 ( 2559) P:98 I:1000 C:241557018 Min: 11 Act: 18 Avg: 21 Max: 74
T: 1 ( 2560) P:98 I:1500 C:161038006 Min: 10 Act: 21 Avg: 20 Max: 73

Signed-off-by: Xander Huff <xander.huff@ni.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agostaging: iio: hmc5843: Set iio name dynamically
Yong Li [Wed, 12 Aug 2015 13:25:46 +0000 (21:25 +0800)]
staging: iio: hmc5843: Set iio name dynamically

Load the driver using the below command:
echo hmc5983 0x1e > /sys/bus/i2c/devices/i2c-?/new_device

In sysfs, the iio name is hmc5843, however the i2c name is hmc5983,
they are inconsistent.

With this patch, the iio name will be the same as the i2c device name

Signed-off-by: Yong Li <sdliyong@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: percolate error if event fd fails
Linus Walleij [Tue, 11 Aug 2015 09:56:40 +0000 (11:56 +0200)]
iio: percolate error if event fd fails

This makes the error from iio_event_getfd() percolate up
to userspace properly so we can know for sure there is no
events on this device (-ENODEV returned). Before this patch
we would bail out looking for the unsupported events on the
erroneous (negative) file descriptor.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: generic_buffer: be helpful about enabling channels
Linus Walleij [Mon, 10 Aug 2015 08:55:08 +0000 (10:55 +0200)]
iio: generic_buffer: be helpful about enabling channels

Currently if generic_buffer is invoked without first enabling any
channels in scan_elements/*_en, it will fail unable to enable the
buffer because bytes_per_datum inside the kernel will be zero if
no channels are available.

It is implied that the user of the program should enable channels
manually or with a script before executing generic_buffer.

Be more helpful by stopping execution if no enabled channels can
be found, and print a helptext that will tell you what is wrong
and what needs to be done.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: event_monitor: report unsupported events
Linus Walleij [Tue, 11 Aug 2015 12:34:38 +0000 (14:34 +0200)]
iio: event_monitor: report unsupported events

This makes the event monitor bail out with a helpful error
message if a device does not support events, as a related
fix to iio core now makes it return -ENODEV properly.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: st_sensors: add debugfs register read hook
Linus Walleij [Wed, 12 Aug 2015 08:22:41 +0000 (10:22 +0200)]
iio: st_sensors: add debugfs register read hook

This adds a debugfs hook to read/write registers in the ST
sensors using debugfs. Proved to be awesome help when trying
to debug why IRQs do not arrive.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoDocumentation: iio-trig-sysfs: Add remove_trigger attribute ABI
Cristina Opriceana [Wed, 12 Aug 2015 11:29:41 +0000 (14:29 +0300)]
Documentation: iio-trig-sysfs: Add remove_trigger attribute ABI

This patch adds the documentation ABI for the remove_trigger
attribute, provided by the iio-trig-sysfs stand-alone driver.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoDocumentation: iio-trig-sysfs: Document add_trigger attribute
Cristina Opriceana [Wed, 12 Aug 2015 11:28:34 +0000 (14:28 +0300)]
Documentation: iio-trig-sysfs: Document add_trigger attribute

This patch adds the ABI documentation for the add_trigger
attribute, which is provided by the iio-trig-sysfs stand-alone driver.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Remove remaining uses of i2c_client
Markus Pargmann [Wed, 12 Aug 2015 14:50:07 +0000 (16:50 +0200)]
iio: bmg160: Remove remaining uses of i2c_client

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Use generic dev_drvdata
Markus Pargmann [Wed, 12 Aug 2015 14:50:06 +0000 (16:50 +0200)]
iio: bmg160: Use generic dev_drvdata

i2c_get_clientdata() is specifically for i2c. Replace it with the
generic dev_get/set_drvdata() to support different protocols.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Remove i2c_client from data struct
Markus Pargmann [Wed, 12 Aug 2015 14:50:05 +0000 (16:50 +0200)]
iio: bmg160: Remove i2c_client from data struct

i2c_client variable is not really used anymore in the core driver. It is
only used to get the device to make proper outputs.

This patch replaces all i2c_client usage through direct usage of the
device pointer.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: Use i2c regmap instead of direct i2c access
Markus Pargmann [Wed, 12 Aug 2015 14:50:04 +0000 (16:50 +0200)]
iio: bmg160: Use i2c regmap instead of direct i2c access

This patch introduces regmap usage into the driver. This is done to
later easily support the SPI interface of this chip.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: Move generic buffer implementations to sub-directory
Lars-Peter Clausen [Fri, 14 Aug 2015 14:54:55 +0000 (16:54 +0200)]
iio: Move generic buffer implementations to sub-directory

For generic IIO trigger implementations we already have a sub-directory,
but the generic buffer implementations currently reside in the IIO
top-level directory. The main reason is that things have historically grown
into this form.

With more generic buffer implementations on its way now is the perfect time
to clean this up and introduce a sub-directory for generic buffer
implementations to avoid too much clutter in the top-level directory.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: Move callback buffer to its own module
Lars-Peter Clausen [Fri, 14 Aug 2015 14:54:54 +0000 (16:54 +0200)]
iio: Move callback buffer to its own module

Currently the IIO callback buffer implementation is directly built into the
IIO core module when enabled. Given that the callback buffer module is
standalone functionallity there is really no reason to do this. So move it
to its own module.

Also rename the source to follow the standard IIO module naming convention
as well as add a license notice to the file.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:adc:cc10001_adc: resort entry in Kconfig and Makefile
Hartmut Knaack [Sun, 21 Jun 2015 10:15:51 +0000 (12:15 +0200)]
iio:adc:cc10001_adc: resort entry in Kconfig and Makefile

Move the entry for the CC 10001 ADC driver in Kconfig and Makefile up to
maintain alphabetic order.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:magnetometer:bmc150_magn: sort entry alphabetically
Hartmut Knaack [Fri, 17 Jul 2015 08:52:25 +0000 (10:52 +0200)]
iio:magnetometer:bmc150_magn: sort entry alphabetically

Sort the entry for bmc105_magn in Kconfig and Makefile to its correct
position. Also add the minor module information for completeness.

Fixes: c91746a2361d ("iio: magn: Add support for BMC150 magnetometer")
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:light:stk3310: adjust indentation
Hartmut Knaack [Thu, 9 Jul 2015 21:51:33 +0000 (23:51 +0200)]
iio:light:stk3310: adjust indentation

Adjust some indentation issues as spotted by checkpatch.pl --strict

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:light:stk3310: use correct names and type for state
Hartmut Knaack [Thu, 9 Jul 2015 21:51:32 +0000 (23:51 +0200)]
iio:light:stk3310: use correct names and type for state

Indicate the bit number of predefined states, make use of these names and
change the state type in _resume to u8 to avoid type casting.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Reviewed-by: Tiberiu Breana <tiberiu.a.breana@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:light:stk3310: add more error handling
Hartmut Knaack [Thu, 9 Jul 2015 21:51:31 +0000 (23:51 +0200)]
iio:light:stk3310: add more error handling

Check for the following error cases:
  * lower boundary for val in _write_event
  * return value of regmap_(field_)read
  * possible values for chan->type
  * return value of stk3310_gpio_probe

Also add an error path in _probe to put the sensor back into stand-by mode
in case of serious errors.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:adc:berlin2-adc: coding style cleanup
Hartmut Knaack [Mon, 27 Jul 2015 22:39:04 +0000 (00:39 +0200)]
iio:adc:berlin2-adc: coding style cleanup

Some adjustment of indentation to make checkpatch.pl happy in strict mode.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:adc:berlin2-adc: enable interrupts with mutex locked
Hartmut Knaack [Mon, 27 Jul 2015 22:39:03 +0000 (00:39 +0200)]
iio:adc:berlin2-adc: enable interrupts with mutex locked

Move the call to enable channel interrupts into its _read() function to
have it protected by a mutex. This ensures that only one channel is
sampled at a time.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:adc:berlin2-adc: use GENMASK and BIT for masks
Hartmut Knaack [Mon, 27 Jul 2015 22:38:59 +0000 (00:38 +0200)]
iio:adc:berlin2-adc: use GENMASK and BIT for masks

Make use of GENMASK for consecutive bitmasks and BIT for single bitmasks.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoMerge tag 'iio-for-4.3b-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23...
Greg Kroah-Hartman [Wed, 12 Aug 2015 19:43:41 +0000 (12:43 -0700)]
Merge tag 'iio-for-4.3b-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new device support, features and cleanup for the 4.3 cycle.
Take 2 also includes a fix set that was too late for the 4.2 cycle.

As we had a lot of tools and docs work in this set, I have broken those
out into their own categories in this description.

Fixes from the pull request '4th set of IIO fixes for the 4.2 cycle'.
* Poll functions for both event chardev and the buffer one were returning
  negative error codes (via a positive value).
* A recent change to lsiio adding some error handling that was wrong and
  stopped the tool working.
* bmg160 was missing some dependencies in Kconfig
* berlin2-adc had a misshandled register (wrote a value rather than a bitmap)

New device support
* TI opt3001 light sensor
* TXC PA12 ALS and proximity sensor.
* mcp3301 ADC support (in mcp320x driver)
* ST lsm303agr accelerometer and magnetometer drivers (plus some st-sensors
  common support to allow different WHOAMI register addresses, devices with
  fixed scale and allow interrupt equiped magnetometers).
* ADIS16305, ADIS16367, ADIS16445IMUs (in the adis16400 driver)
* ADIS16266 gyro (in the adis16260 driver)
* ADIS16137 gyro (in the adis16136 driver)

New functionality
* mmc35240 DT bindings.
* Inverse unit conversion macros to aid handing of values written to sysfs
  attributes.

Core cleanup
* Forward declaration of struct iio_trigger to avoid a compile warning.

Driver cleanup / fixes
* mxs-lradc
  - Clarify which parts are supported.
  - Fix spelling erorrs.
  - Missing/extra includes
  - reorder includes
  - add datasheet name listings for all usable channels (to allow them
    to be bound by name from consumer drivers)
* acpi-als - add some function prefixes as per general iio style.
* bmc150_magn - replace a magic value with the existing define.
* vf610 - determine possible sample frequencies taking into account the
  electrical characteristics (defining a minimum sample time)
* dht11
  - whitespace
  - additional docs
  - avoid mulitple assignments in one line
  - Use the new funciton ktime_get_resolution_ns to cleanup a nasty trick
    previously used for timing.
* Fix all drivers that consider 0 a valid IRQ for historical reasons.
* Export I2C module alias info where previously missing (to allow autoprobing)
* Export OF module alias info where previously missing.
* mmc35240 - switch some variables into arrays to improve readability.
* mlx90614 - define some magic numbers for readability.
* bmc150_magn
  - expand area locked by a mutex to cover all the use of the
    data->buffer.
  - use descriptive naming for a mask instead of a magic value.
* berin2-adc
  - pass up an error code rather that a generic error
  - constify the iio_chan_spec
  - some other little tidy ups.
* stk8312
  - fix a dependency on triggered buffers in kconfig
  - add a check for invalid attribute values
  - improve error handling by returning error codes where possible and
    return immediately where relevant
  - rework macro defs to use GENMASK etc
  - change some variable types to reduce unnecessary casting
  - clean up code style
  - drop a local buffer copy for bulk reads and use the one in data->buffer
     instead.
* adis16400 - the adis16448 gyroscope scale was wrong.
* adis16480 - some more wrong scales for various parts.
* adis16300 - has an undocumented product id and serial number registers so
  use them.
* iio_simple_dummy - fix some wrong code indentation.
* bmc150-accel - use the chip ID to detect the chip present rather than
  verifying the expected part was there.  This was in response to a wrong
  ACPI entry on the WinBook TW100.
* mma8452
  - fix _get_hp_filter_index
  - drop a double include
  - pass up an error code rather than rewriting it
  - range check input values to attribute writes
  - register defs tidy up using GENMASK and reordering them to be easier to
    follow.
  - various coding style cleanups
  - put the Kconfig entry in the write place (alphabetically).

Tools related
* Tools cleanup - drop an explicity NULL comparison, some unnecessary braces,
  use the ARRAY_SIZE macro, send error messages to stderr instead of dropping
  them in the middle of normal output.
* Fix tools to allow that scale and offset attributes are optional.
* More tools fixes including allowing true 32bit data (previously an overflow
  prevented more than 31bits)
* Drop a stray header guard that ended up in a c file.
* Make calc_digits static as it isn't exported or in the header.
* Set ci_array pointer to NULL after free as a protection against non safe
  usage of the tools core code.  Also convert a double pointer to a single
  one as the extra level of indirection was unnecessary.

Docs
* DocBook introduction by Daniel Baluta.  Glad we are beginning to
  draw together some more introductory docs to suplement the various
  tools / examples.
* Drop bytes_per_datum sysfs attribute docs as it no longer exists.
* A whole load of missing / fixing of kernel-doc for the core of IIO.
* Document the trigger name sysfs attribute in the ABI docs.
* Minor typos in the ABI docs related to power down modes.

9 years agoiio: event: Remove negative error code from iio_event_poll
Cristina Opriceana [Mon, 3 Aug 2015 10:00:47 +0000 (13:00 +0300)]
iio: event: Remove negative error code from iio_event_poll

Negative return values are not supported by iio_event_poll since
its return type is unsigned int.

Fixes: f18e7a068a0a3 ("iio: Return -ENODEV for file operations if the device has been unregistered")
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: industrialio-buffer: Fix iio_buffer_poll return value
Cristina Opriceana [Mon, 3 Aug 2015 10:37:40 +0000 (13:37 +0300)]
iio: industrialio-buffer: Fix iio_buffer_poll return value

Change return value to 0 if no device is bound since
unsigned int cannot support negative error codes.

Fixes: f18e7a068 ("iio: Return -ENODEV for file operations if the
device has been unregistered")

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: lsiio: fix error code handling error
Linus Walleij [Tue, 4 Aug 2015 14:21:49 +0000 (16:21 +0200)]
iio: lsiio: fix error code handling error

commit acf50b3586f8d8a7530b905e111dda41876d38f4
"tools:iio:lsiio: add error handling"
introduced error handling of errors returned from
read_sysfs_string(), but with a simple if (retval),
missing the fact that these functions return a positive
value if the read was successful.

As a result lsiio regresses and does not show any
devices on my filesystem. Fix this by checking for
only negative error codes.

Cc: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: bmg160: IIO_BUFFER and IIO_TRIGGERED_BUFFER are required
Markus Pargmann [Wed, 29 Jul 2015 13:46:03 +0000 (15:46 +0200)]
iio: bmg160: IIO_BUFFER and IIO_TRIGGERED_BUFFER are required

This patch adds selects for IIO_BUFFER and IIO_TRIGGERED_BUFFER. Without
IIO_BUFFER, the driver does not compile.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:adc:berlin2-adc: Fix register definition
Hartmut Knaack [Mon, 27 Jul 2015 22:38:57 +0000 (00:38 +0200)]
iio:adc:berlin2-adc: Fix register definition

Active channel number is stored in BERLIN2_SM_CTRL as value, instead of a
bit map.
The masks for channel interrupts and data ready are a 16 bits wide bit
map each, instead of just 4 bits.

Also correct the data mask for the temperature sensor, which was
Reported-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agostaging: ozwpan: Remove from tree
Jason A. Donenfeld [Mon, 10 Aug 2015 15:49:51 +0000 (17:49 +0200)]
staging: ozwpan: Remove from tree

Ozwpan is completely unmaintained and potentially a security problem. As
this is a staging driver, it should be removed, since it has been
abandoned.

Cc: Shigekatsu Tateno <shigekatsu.tateno@atmel.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoMerge 4.2-rc6 into staging-next
Greg Kroah-Hartman [Mon, 10 Aug 2015 16:07:25 +0000 (09:07 -0700)]
Merge 4.2-rc6 into staging-next

We want the IIO and staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoLinux 4.2-rc6
Linus Torvalds [Sun, 9 Aug 2015 19:54:30 +0000 (15:54 -0400)]
Linux 4.2-rc6

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sun, 9 Aug 2015 07:38:42 +0000 (09:38 +0200)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input subsystem fixes from Dmitry Torokhov:
 "Just small ALPS and Elan touchpads, and other driver fixups"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elantech - add special check for fw_version 0x470f01 touchpad
  Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning
  Input: alps - only Dell laptops have separate button bits for v2 dualpoint sticks
  Input: axp20x-pek - add module alias
  Input: turbografx - fix potential out of bound access

9 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sun, 9 Aug 2015 02:59:21 +0000 (05:59 +0300)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "Another round of MIPS fixes for 4.2.  No area does particularly stand
  out but we have a two unpleasant ones:

   - Kernel ptes are marked with a global bit which allows the kernel to
     share kernel TLB entries between all processes.  For this to work
     both entries of an adjacent even/odd pte pair need to have the
     global bit set.  There has been a subtle race in setting the other
     entry's global bit since ~ 2000 but it take particularly
     pathological workloads that essentially do mostly vmalloc/vfree to
     trigger this.

     This pull request fixes the 64-bit case but leaves the case of 32
     bit CPUs with 64 bit ptes unsolved for now.  The unfixed cases
     affect hardware that is not available in the field yet.

   - Instruction emulation requires loading instructions from user space
     but the current fast but simplistic approach will fail on pages
     that are PROT_EXEC but !PROT_READ.  For this reason we temporarily
     do not permit this permission and will map pages with PROT_EXEC |
     PROT_READ.

  The remainder of this pull request is more or less across the field
  and the short log explains them well"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Make set_pte() SMP safe.
  MIPS: Replace add and sub instructions in relocate_kernel.S with addiu
  MIPS: Flush RPS on kernel entry with EVA
  Revert "MIPS: BCM63xx: Provide a plat_post_dma_flush hook"
  MIPS: BMIPS: Delete unused Kconfig symbol
  MIPS: Export get_c0_perfcount_int()
  MIPS: show_stack: Fix stack trace with EVA
  MIPS: do_mcheck: Fix kernel code dump with EVA
  MIPS: SMP: Don't increment irq_count multiple times for call function IPIs
  MIPS: Partially disable RIXI support.
  MIPS: Handle page faults of executable but unreadable pages correctly.
  MIPS: Malta: Don't reinitialise RTC
  MIPS: unaligned: Fix build error on big endian R6 kernels
  MIPS: Fix sched_getaffinity with MT FPAFF enabled
  MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets
  CPUFREQ: Loongson2: Fix broken build due to incorrect include.

9 years agoMerge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Sun, 9 Aug 2015 02:56:31 +0000 (05:56 +0300)]
Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

Pull btrfs fix from Chris Mason:
 "We have a btrfs quota regression fix.

  I merged this one on Thursday and have run it through tests against
  current master.

  Normally I wouldn't have sent this while you were finalizing rc6, but
  I'm feeding mosquitoes in the adirondacks next week, so I wanted to
  get this one out before leaving.  I'll leave longer tests running and
  check on things during the week, but I don't expect any problems"

* 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: qgroup: Fix a regression in qgroup reserved space.

9 years agoMerge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Linus Torvalds [Sun, 9 Aug 2015 02:54:27 +0000 (05:54 +0300)]
Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

Pull thermal management fixes from Zhang Rui:
 "Specifics:

   - fix an error that "weight_attr" sysfs attribute is not removed
     while unbinding.  From: Viresh Kumar.

   - fix power allocator governor tracing to return the real request.
     From Javi Merino.

   - remove redundant owner assignment of hisi platform thermal driver.
     From Krzysztof Kozlowski.

   - a couple of small fixes of Exynos thermal driver.  From Krzysztof
     Kozlowski and Chanwoo Choi"

* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  thermal: Drop owner assignment from platform_driver
  thermal: exynos: Remove unused code related to platform_data on probe()
  thermal: exynos: Add the dependency of CONFIG_THERMAL_OF instead of CONFIG_OF
  thermal: exynos: Disable the regulator on probe failure
  thermal: power_allocator: trace the real requested power
  thermal: remove dangling 'weight_attr' device file

9 years agoStaging: lustre/lustre/ptlrpc: service.c: Fixed issue with global integer being initi...
Daniel Machon [Sat, 8 Aug 2015 18:43:25 +0000 (20:43 +0200)]
Staging: lustre/lustre/ptlrpc: service.c: Fixed issue with global integer being initialized to 0

Fixed global integer initialization issue.
Global variables should not be explicitly initialized to 0 or NULL.

Signed-off-by: Daniel Machon <dmachon.dev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoStaging: lustre/lnet/selftest: framework.c: Fixed coding style issues
Daniel Machon [Sat, 8 Aug 2015 18:34:59 +0000 (20:34 +0200)]
Staging: lustre/lnet/selftest: framework.c: Fixed coding style issues

Fixed coding style issues where statement should be on the next line

Signed-off-by: Daniel Machon <dmachon.dev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoStaging: wilc1000: wilc_platform.h: Fixed include guard spelling error
Daniel Machon [Sat, 8 Aug 2015 18:00:07 +0000 (20:00 +0200)]
Staging: wilc1000: wilc_platform.h: Fixed include guard spelling error

Fixed spelling error

Signed-off-by: Daniel Machon <dmachon.dev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: wilc1000: Remove braces for single statement 'if' and 'else'
Chandra S Gorentla [Sat, 8 Aug 2015 12:11:36 +0000 (17:41 +0530)]
staging: wilc1000: Remove braces for single statement 'if' and 'else'

Fixes the checkpatch.pl warning - braces {} are not necessary for any arm
of this statement

Signed-off-by: Chandra S Gorentla <csgorentla@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: wilc1000: Remove ' ' before quoted '\n'
Chandra S Gorentla [Sat, 8 Aug 2015 12:11:35 +0000 (17:41 +0530)]
staging: wilc1000: Remove ' ' before quoted '\n'

Fixes the checkpatch.pl warning -
'unnecessary whitespace before a quoted newline'.

Signed-off-by: Chandra S Gorentla <csgorentla@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: wilc1000: Remove unused extern declarations
Chandra S Gorentla [Sat, 8 Aug 2015 12:11:34 +0000 (17:41 +0530)]
staging: wilc1000: Remove unused extern declarations

'extern' declarations which are not referenced within the file are
removed.

Signed-off-by: Chandra S Gorentla <csgorentla@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agostaging: wilc1000: Add space between the braces
Chandra S Gorentla [Sat, 8 Aug 2015 12:11:33 +0000 (17:41 +0530)]
staging: wilc1000: Add space between the braces

Inserted space between nested braces.  This fixes the checkpatch.pl
error - space required after that close brace '}'.

Signed-off-by: Chandra S Gorentla <csgorentla@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotools: iio: remove unnecessary double pointer
Joo Aun Saw [Fri, 24 Jul 2015 15:23:29 +0000 (01:23 +1000)]
tools: iio: remove unnecessary double pointer

Remove unnecessary double pointer from channel sorting function.

Signed-off-by: Joo Aun Saw <jasaw@dius.com.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agotools: iio: Set caller's ci_array pointer to NULL after free
Joo Aun Saw [Fri, 24 Jul 2015 15:23:28 +0000 (01:23 +1000)]
tools: iio: Set caller's ci_array pointer to NULL after free

On error, caller's ci_array is freed and set to NULL to avoid
potential double free if some other user of this code is not
sufficiently careful. Counter is reset to zero for consistency.

Signed-off-by: Joo Aun Saw <jasaw@dius.com.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio: Fix typos in ABI documentation
Vladimir Barinov [Wed, 29 Jul 2015 12:57:41 +0000 (15:57 +0300)]
iio: Fix typos in ABI documentation

Fix typos in ABI documentation

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: reorder Kconfig entry
Hartmut Knaack [Sun, 2 Aug 2015 20:43:52 +0000 (22:43 +0200)]
iio:accel:mma8452: reorder Kconfig entry

Move the entry in Kconfig to its alphabetically correct position.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: coding style cleanup
Hartmut Knaack [Sun, 2 Aug 2015 20:43:51 +0000 (22:43 +0200)]
iio:accel:mma8452: coding style cleanup

Some coding style cleanups, mainly indicated by checkpatch.pl, which
includes indentation changes, drop spaces after casts and befor tabs.
Also insert empty lines after logical blocks and before unconditional
returns.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: rework register definitions
Hartmut Knaack [Sun, 2 Aug 2015 20:43:50 +0000 (22:43 +0200)]
iio:accel:mma8452: rework register definitions

Rework register definitions to be sorted by register and bit number, with
bit definitions cascaded under the appropriate register, use GENMASK for
consecutive bitmasks and realign properly.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: check values to be written
Hartmut Knaack [Sun, 2 Aug 2015 20:43:49 +0000 (22:43 +0200)]
iio:accel:mma8452: check values to be written

Check values to be written to the device for valid lower and upper bounds.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: pass up real error code
Hartmut Knaack [Sun, 2 Aug 2015 20:43:48 +0000 (22:43 +0200)]
iio:accel:mma8452: pass up real error code

Pass up the error code provided by functions.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: drop double include
Hartmut Knaack [Sun, 2 Aug 2015 20:43:47 +0000 (22:43 +0200)]
iio:accel:mma8452: drop double include

One inclusion of linux/iio/trigger_consumer.h is sufficient.

Fixes: ae6d9ce05691b ("iio: mma8452: Add support for interrupt driven triggers.")
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:mma8452: fix _get_hp_filter_index
Hartmut Knaack [Sun, 2 Aug 2015 20:43:46 +0000 (22:43 +0200)]
iio:accel:mma8452: fix _get_hp_filter_index

To iterate through the available frequencies of mma8452_hp_filter_cutoff[],
the array size of a row of that table needs to be provided to
_get_int_plus_micros_index().

Fixes: 1e79841a00e46 ("iio: mma8452: Add highpass filter configuration.")
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:bmc150-accel: Use the chip ID to detect sensor variant
Bastien Nocera [Thu, 23 Jul 2015 15:21:07 +0000 (17:21 +0200)]
iio:accel:bmc150-accel: Use the chip ID to detect sensor variant

Instead of using the I2C or ACPI ID to determine which variant of
the chipset to use, determine that from the chip ID.

Under Windows, the same driver is used for those variants and, despite
incorrect ACPI data, it is able to load and operate the accelerometer.

Fixes the accelerometer failing with:
bmc150_accel i2c-BMA250E:00: Invalid chip f8
on the WinBook TW100

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
9 years agoiio:accel:bmc150-accel: Move bmc150_accel_chip_init()
Bastien Nocera [Thu, 23 Jul 2015 15:20:59 +0000 (17:20 +0200)]
iio:accel:bmc150-accel: Move bmc150_accel_chip_init()

Move bmc150_accel_chip_init() so that we can use
bmc150_accel_chip_info_tbl[] in it.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>