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7 commits

Author SHA1 Message Date
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
Slawomir Stepien
91307cbeca iio: potentiometer: mcp4531: use pointer to access model parameters 
Use const pointer to element from model configuration array rather then array
index, as it will not change anyway.

Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-04-03 10:27:27 +01:00
Matt Ranostay
844a656367 iio: potentiometer: tpl0102: change i2c functionality return code 
Change i2c_check_functionality condition check return from ENOTSUPP to
EOPNOTSUPP which is now the standard return code.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-03-05 14:00:57 +00:00
Matt Ranostay
f8d9d3b434 iio: convert to common i2c_check_functionality() return value 
Previously most drivers that used a i2c_check_functionality() check
condition required various error codes on failure. This patchset
converts to a standard of -EOPNOTSUPP

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2016-02-27 17:17:43 +00:00
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