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From: Peter Rosin <>
Cc: Peter Rosin <>,
	Jonathan Cameron <>,
	Hartmut Knaack <>,
	Lars-Peter Clausen <>,
	Peter Meerwald-Stadler <>,
	Rob Herring <>,
	Mark Rutland <>,
	"David S. Miller" <>,
	Greg Kroah-Hartman <>,
	Mauro Carvalho Chehab <>,
	Linus Walleij <>,
	Andrew Morton <>,
	Randy Dunlap <>,
	"Andrew F . Davis" <>,
	Fabio Estevam <>,,
Subject: [PATCH v4 0/4] iio: add unit-converter
Date: Mon, 23 Apr 2018 23:08:05 +0200	[thread overview]
Message-ID: <> (raw)


This driver implements support for voltage dividers, current sense
shunts and current sense amplifiers. It's pretty generic and should
be easily adaptable to other linear scaling purposes.


Changes since v3:
- Split the bindings patch for voltage-divider and current-sense-shunt
  in two, thus retaining the tag from Rob on the latter, when the
  former got a major update. The voltage-divider binding is now
  clear of its history from the generic io-channel-unit-converter
  binding roots (v1 of the series) and makes much more sense on its
  own (IMHO).
- Incorporate the confusing followup patches that added current sense
  amplification to the series.
- Drop the adi,lt6106 binding from that followup and replace it with
  a generic current-sense-amplifier binding.
- Adjust the driver to the above, and also rename it to iio-rescale
  as unit-converter was perhaps a little bit too generic even for the
  driver name.

Changes since v2:
- Rename from current-sence-circuit to current-sense-shunt (this
  should also fix all the typing problems I had with curciut).
- Describe the shunt resistance directly (instead of indirectly
  in the form of a quotient).
- Add a ->props() op to struct unit_converter_cfg to enable simple
  separation of properties for different converters.
- Shuffle the code around to minimize forward declarations.
- Drop the unused indio member from struct unit_converter.
- Drop error report on iio driver registration failure.

Changes since v1:
- Put the driver in the new afe category (Analog Front Ends) and do not
  move the iio-mux driver.
- Do not refer to the source channel as "parent", use "source" instead.
- Have the DT compatible drive the target unit, instead of relying on a
  "type" DT-property for that.
- In the DT bindings, use an unnamed source channel.
- Do not set up writes to _RAW (sorry Phil) as I don't need it and have
  not tested it. It's easy to add back if needed.
- Fail if the source channel does not support _RAW or _SCALE.
- Fix various spelling issues.
- Fix various code style issues.

Peter Rosin (4):
  dt-bindings: iio: afe: add binding for current-sense-shunt
  dt-bindings: iio: afe: add binding for voltage-divider
  dt-bindings: iio: afe: add binding for current-sense-amplifier
  iio: afe: rescale: new driver

 .../bindings/iio/afe/current-sense-amplifier.txt   |  26 ++
 .../bindings/iio/afe/current-sense-shunt.txt       |  41 +++
 .../bindings/iio/afe/voltage-divider.txt           |  53 +++
 MAINTAINERS                                        |   9 +
 drivers/iio/Kconfig                                |   1 +
 drivers/iio/Makefile                               |   1 +
 drivers/iio/afe/Kconfig                            |  19 ++
 drivers/iio/afe/Makefile                           |   6 +
 drivers/iio/afe/iio-rescale.c                      | 359 +++++++++++++++++++++
 9 files changed, 515 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.txt
 create mode 100644 Documentation/devicetree/bindings/iio/afe/current-sense-shunt.txt
 create mode 100644 Documentation/devicetree/bindings/iio/afe/voltage-divider.txt
 create mode 100644 drivers/iio/afe/Kconfig
 create mode 100644 drivers/iio/afe/Makefile
 create mode 100644 drivers/iio/afe/iio-rescale.c


             reply	other threads:[~2018-04-23 21:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-23 21:08 Peter Rosin [this message]
2018-04-23 21:08 ` [PATCH v4 1/4] dt-bindings: iio: afe: add binding for current-sense-shunt Peter Rosin
2018-04-28 16:59   ` Jonathan Cameron
2018-04-23 21:08 ` [PATCH v4 2/4] dt-bindings: iio: afe: add binding for voltage-divider Peter Rosin
2018-04-27 14:29   ` Rob Herring
2018-04-28 17:01     ` Jonathan Cameron
2018-04-23 21:08 ` [PATCH v4 3/4] dt-bindings: iio: afe: add binding for current-sense-amplifier Peter Rosin
2018-04-27 14:30   ` Rob Herring
2018-04-28 17:02     ` Jonathan Cameron
2018-04-23 21:08 ` [PATCH v4 4/4] iio: afe: rescale: new driver Peter Rosin
2018-04-28 17:05   ` Jonathan Cameron

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