iio: potentiometer: Add driver for Microchip MCP41xxx/42xxx

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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>

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Chris Coffey 2018-11-20 14:17:13 +00:00 • committed by Jonathan Cameron

parent f71b3c9912

commit 092cb71a60

3 changed files with 216 additions and 0 deletions

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12

drivers/iio/potentiometer/Kconfig

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1

drivers/iio/potentiometer/Makefile

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203

drivers/iio/potentiometer/mcp41010.c

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