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Commit 3c9a6793 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge tag 'iio-for-4.8b' of... 

Merge tag 'iio-for-4.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new iio device support, features and cleanups in the 4.8 cycle

Firstly some contact detail updates:
* NXP took over freescale. Update the mma8452 header to reflect this.
* Martin Kepplinger email address change in mma8452 header.
* Adriana Reus has changed email address. Update .mailmap.
* Matt Ranostay has changed email address. Update .mailmap.

New Device Support
* max1363
  - add the missing i2c_device_ids for a couple of parts so they can actually
    be used.
* ms5867
  - add device ids for ms5805 and ms5837 parts.

New Features
* ad5755
  - DT support.  This one was a bit controversial and under review for a long
    time.  Still no one could come up with a better solution.
* stx104
  - add gpio support
* ti-adc081c
  - Add ACPI device ID matching.

Core changes
* Refuse to register triggers with duplicate names.  There is no way to
  distinguish between them so this makes no sense.  A few drivers do not
  generate unique names for each instance of the device present.  We can't
  fix this without changing ABI so leave them and wait for someone to
  actually take the rare step of two identical accelerometers on the same
  board.
* buffer-dma
  - use ARRAY_SIZE in a few appropriate locations.

Tools
* Fix the fact that the --trigger-num option in generic_buffer didn't allow
  0 which is perfectly valid in the ABI.

Cleanups
* as3935
  - improve error reporting.
  - remove redundant zeroing of a field in iio_priv.
* gp2ap020a00f
  - use the iio_device_claim_*_mode helpers rather than open coding locking
  around mode changes.
* isl29125
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* lidar
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* mma8452
  - more detail in devices supported description in comments (addresses and
  similar)
* sca3000
  - add a missing error check.
* tcs3414
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* tcs3472
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
parents 9989b599 67626cc1

.mailmap

+3 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ Aaron Durbin <adurbin@google.com> 
Adam Oldham <oldhamca@gmail.com>

Adam Radford <aradford@gmail.com>

Adrian Bunk <bunk@stusta.de>

Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>

Alan Cox <alan@lxorguk.ukuu.org.uk>

Alan Cox <root@hraefn.swansea.linux.org.uk>

Aleksey Gorelov <aleksey_gorelov@phoenix.com>
@@ -90,6 +91,8 @@ Linas Vepstas <linas@austin.ibm.com> 
Mark Brown <broonie@sirena.org.uk>

Matthieu CASTET <castet.matthieu@free.fr>

Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com> <mchehab@infradead.org> <mchehab@redhat.com> <m.chehab@samsung.com> <mchehab@osg.samsung.com> <mchehab@s-opensource.com>

Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>

Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>

Mayuresh Janorkar <mayur@ti.com>

Michael Buesch <m@bues.ch>

Michel Dänzer <michel@tungstengraphics.com>

Documentation/devicetree/bindings/iio/dac/ad5755.txt

0 → 100644
+124 −0
Original line number Diff line number Diff line 
* Analog Device AD5755 IIO Multi-Channel DAC Linux Driver



Required properties:

 - compatible: Has to contain one of the following:

	adi,ad5755

	adi,ad5755-1

	adi,ad5757

	adi,ad5735

	adi,ad5737



 - reg: spi chip select number for the device

 - spi-cpha or spi-cpol: is the only modes that is supported



Recommended properties:

 - spi-max-frequency: Definition as per

		Documentation/devicetree/bindings/spi/spi-bus.txt



Optional properties:

See include/dt-bindings/iio/ad5755.h

 - adi,ext-dc-dc-compenstation-resistor: boolean set if the hardware have an

					 external resistor and thereby bypasses

					 the internal compensation resistor.

 - adi,dc-dc-phase:

	Valid values for DC DC Phase control is:

	0: All dc-to-dc converters clock on the same edge.

	1: Channel A and Channel B clock on the same edge,

	   Channel C and Channel D clock on opposite edges.

	2: Channel A and Channel C clock on the same edge,

	   Channel B and Channel D clock on opposite edges.

	3: Channel A, Channel B, Channel C, and Channel D

	   clock 90 degrees out of phase from each other.

 - adi,dc-dc-freq-hz:

	Valid values for DC DC frequency is [Hz]:

	250000

	410000

	650000

 - adi,dc-dc-max-microvolt:

	Valid values for the maximum allowed Vboost voltage supplied by

	the dc-to-dc converter is:

	23000000

	24500000

	27000000

	29500000



Optional for every channel:

 - adi,mode:

	Valid values for DAC modes is:

	0: 0 V to 5 V voltage range.

	1: 0 V to 10 V voltage range.

	2: Plus minus 5 V voltage range.

	3: Plus minus 10 V voltage range.

	4: 4 mA to 20 mA current range.

	5: 0 mA to 20 mA current range.

	6: 0 mA to 24 mA current range.

 - adi,ext-current-sense-resistor: boolean set if the hardware a external

				   current sense resistor.

 - adi,enable-voltage-overrange: boolean enable voltage overrange

 - adi,slew: Array of slewrate settings should contain 3 fields:

	1: Should be either 0 or 1 in order to enable or disable slewrate.

	2: Slew rate settings:

		Valid values for the slew rate update frequency:

		64000

		32000

		16000

		8000

		4000

		2000

		1000

		500

		250

		125

		64

		32

		16

		8

		4

		0

	3: Slew step size:

		Valid values for the step size LSBs:

		1

		2

		4

		16

		32

		64

		128

		256



Example:

dac@0 {

	#address-cells = <1>;

	#size-cells = <0>;

	compatible = "adi,ad5755";

	reg = <0>;

	spi-max-frequency = <1000000>;

	spi-cpha;

	adi,dc-dc-phase = <0>;

	adi,dc-dc-freq-hz = <410000>;

	adi,dc-dc-max-microvolt = <23000000>;

	channel@0 {

		reg = <0>;

		adi,mode = <4>;

		adi,ext-current-sense-resistor;

		adi,slew = <0 64000 1>;

	};

	channel@1 {

		reg = <1>;

		adi,mode = <4>;

		adi,ext-current-sense-resistor;

		adi,slew = <0 64000 1>;

	};

	channel@2 {

		reg = <2>;

		adi,mode = <4>;

		adi,ext-current-sense-resistor;

		adi,slew = <0 64000 1>;

	};

	channel@3 {

		reg = <3>;

		adi,mode = <4>;

		adi,ext-current-sense-resistor;

		adi,slew = <0 64000 1>;

	};

};

drivers/iio/accel/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -157,12 +157,12 @@ config MMA7660 
	  will be called mma7660.



config MMA8452

	tristate "Freescale MMA8452Q and similar Accelerometers Driver"

	tristate "Freescale / NXP MMA8452Q and similar Accelerometers Driver"

	depends on I2C

	select IIO_BUFFER

	select IIO_TRIGGERED_BUFFER

	help

	  Say yes here to build support for the following Freescale 3-axis

	  Say yes here to build support for the following Freescale / NXP 3-axis

	  accelerometers: MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC,

	  FXLS8471Q.

drivers/iio/accel/mma8452.c

+12 −12
Original line number Diff line number Diff line 
/*

 * mma8452.c - Support for following Freescale 3-axis accelerometers:

 * mma8452.c - Support for following Freescale / NXP 3-axis accelerometers:

 *

 * MMA8451Q (14 bit)

 * MMA8452Q (12 bit)

 * MMA8453Q (10 bit)

 * MMA8652FC (12 bit)

 * MMA8653FC (10 bit)

 * FXLS8471Q (14 bit)

 * device name	digital output	7-bit I2C slave address (pin selectable)

 * ---------------------------------------------------------------------

 * MMA8451Q	14 bit		0x1c / 0x1d

 * MMA8452Q	12 bit		0x1c / 0x1d

 * MMA8453Q	10 bit		0x1c / 0x1d

 * MMA8652FC	12 bit		0x1d

 * MMA8653FC	10 bit		0x1d

 * FXLS8471Q	14 bit		0x1e / 0x1d / 0x1c / 0x1f

 *

 * Copyright 2015 Martin Kepplinger <martin.kepplinger@theobroma-systems.com>

 * Copyright 2015 Martin Kepplinger <martink@posteo.de>

 * Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net>

 *

 * This file is subject to the terms and conditions of version 2 of

 * the GNU General Public License.  See the file COPYING in the main

 * directory of this archive for more details.

 *

 * 7-bit I2C slave address 0x1c/0x1d (pin selectable)

 *

 * TODO: orientation events

 */
@@ -108,7 +108,7 @@ struct mma8452_data { 
};



/**

 * struct mma_chip_info - chip specific data for Freescale's accelerometers

 * struct mma_chip_info - chip specific data

 * @chip_id:			WHO_AM_I register's value

 * @channels:			struct iio_chan_spec matching the device's

 *				capabilities
@@ -1693,5 +1693,5 @@ static struct i2c_driver mma8452_driver = { 
module_i2c_driver(mma8452_driver);



MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");

MODULE_DESCRIPTION("Freescale MMA8452 accelerometer driver");

MODULE_DESCRIPTION("Freescale / NXP MMA8452 accelerometer driver");

MODULE_LICENSE("GPL");

drivers/iio/adc/ti-adc081c.c

+25 −1
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/i2c.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/acpi.h>



#include <linux/iio/iio.h>

#include <linux/iio/buffer.h>
@@ -149,12 +150,24 @@ static int adc081c_probe(struct i2c_client *client, 
{

	struct iio_dev *iio;

	struct adc081c *adc;

	struct adcxx1c_model *model = &adcxx1c_models[id->driver_data];

	struct adcxx1c_model *model;

	int err;



	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))

		return -EOPNOTSUPP;



	if (ACPI_COMPANION(&client->dev)) {

		const struct acpi_device_id *ad_id;



		ad_id = acpi_match_device(client->dev.driver->acpi_match_table,

					  &client->dev);

		if (!ad_id)

			return -ENODEV;

		model = &adcxx1c_models[ad_id->driver_data];

	} else {

		model = &adcxx1c_models[id->driver_data];

	}



	iio = devm_iio_device_alloc(&client->dev, sizeof(*adc));

	if (!iio)

		return -ENOMEM;
@@ -231,10 +244,21 @@ static const struct of_device_id adc081c_of_match[] = { 
MODULE_DEVICE_TABLE(of, adc081c_of_match);

#endif



#ifdef CONFIG_ACPI

static const struct acpi_device_id adc081c_acpi_match[] = {

	{ "ADC081C", ADC081C },

	{ "ADC101C", ADC101C },

	{ "ADC121C", ADC121C },

	{ }

};

MODULE_DEVICE_TABLE(acpi, adc081c_acpi_match);

#endif



static struct i2c_driver adc081c_driver = {

	.driver = {

		.name = "adc081c",

		.of_match_table = of_match_ptr(adc081c_of_match),

		.acpi_match_table = ACPI_PTR(adc081c_acpi_match),

	},

	.probe = adc081c_probe,

	.remove = adc081c_remove,