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13 Commits

Author SHA1 Message Date
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig 
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-21 10:50:46 +02:00
Enrico Weigelt, metux IT consult
d626be00e8 drivers: iio: Kconfig: pedantic cleanup 
Formatting of Kconfig files doesn't look so pretty, so just
take damp cloth and clean it up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2019-04-04 20:19:56 +01:00
Chris Coffey
092cb71a60 iio: potentiometer: Add driver for Microchip MCP41xxx/42xxx 
This patch adds driver support for the Microchip MCP41xxx/42xxx family
of digital potentiometers:

DEVICE      Wipers  Positions   Resistance (kOhm)
MCP41010    1       256         10
MCP41050    1       256         50
MCP41100    1       256         100
MCP42010    2       256         10
MCP42050    2       256         50
MCP42100    2       256         100

Datasheet: http://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf

Signed-off-by: Chris Coffey <cmc@babblebit.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-11-25 12:35:26 +00:00
Peter Rosin
5214ad6dcc iio: potentiometer: mcp4018: driver for Microchip digital potentiometers 
Add support for Microchip digital potentiometers and rheostats
	MCP4017, MCP4018, MCP4019

They all have one wiper with 128 steps and come in 5, 10, 50 and 100 kOhm
variations.

Datasheet: http://www.microchip.com/downloads/en/DeviceDoc/22147a.pdf

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-03-10 16:03:25 +00:00
Phil Reid
79e8a32d2a iio: ad5272: Add support for Analog Devices digital potentiometers 
Add implementation for Analog Devices AD5272 and AD5274 digital
potentiometer devices.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-02-10 15:48:08 +00:00
Matt Weber
df1fd2de11 iio: max5481: Add support for Maxim digital potentiometers 
Add implementation for Maxim Integrated 5481, 5482, 5483,
and 5484 digital potentiometer devices.

Datasheet:
http://datasheets.maximintegrated.com/en/ds/MAX5481-MAX5484.pdf

Signed-off-by: Maury Anderson <maury.anderson@rockwellcollins.com>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2017-01-28 12:13:31 +00:00
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
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
Cristina Moraru
9a47894fbe iio: max5487: Add support for Maxim digital potentiometers 
Add implementation for Maxim MAX5487, MAX5488, MAX5489
digital potentiometers.

Datasheet:
http://datasheets.maximintegrated.com/en/ds/MAX5487-MAX5489.pdf

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
CC: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-05-21 20:13:14 +01:00
Slawomir Stepien
fbbc5e7044 iio: potentiometer: add driver for Maxim Integrated DS1803 
The following functions are supported:
 - write, read potentiometer value
 - potentiometer scale

Datasheet: https://datasheets.maximintegrated.com/en/ds/DS1803.pdf

Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-04-10 12:34:09 +01:00
Slawomir Stepien
22d199a539 iio: potentiometer: add driver for Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X 
The following functionalities are supported:
 - write, read from volatile memory

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf

Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Reviewed-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-04-03 11:13:42 +01:00
Matt Ranostay
2edbd2955d iio: potentiometer: add TI tpl0102 support 
Add support for the TI family of digital potentiometers.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-02-24 20:40:48 +00:00
Peter Rosin
c05dc2cce7 iio: mcp4531: Driver for Microchip digital potentiometers 
Add support for Microchip digital potentiometers and rheostats
	MCP4531, MCP4532, MCP4551, MCP4552
	MCP4631, MCP4632, MCP4651, MCP4652

DEVICE   Wipers  Steps  Resistor Opts (kOhm)  i2c address
MCP4531  1       129    5, 10, 50, 100        010111x
MCP4532  1       129    5, 10, 50, 100        01011xx
MCP4551  1       257    5, 10, 50, 100        010111x
MCP4552  1       257    5, 10, 50, 100        01011xx
MCP4631  2       129    5, 10, 50, 100        0101xxx
MCP4632  2       129    5, 10, 50, 100        01011xx
MCP4651  2       257    5, 10, 50, 100        0101xxx
MCP4652  2       257    5, 10, 50, 100        01011xx

Datasheet: http://www.microchip.com/downloads/en/DeviceDoc/22096b.pdf

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2015-09-30 18:20:53 +01:00