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[v3,0/2] iio:adc:ad7476: Regulator support and binding doc

Message ID 20210424170346.526242-1-jic23@kernel.org (mailing list archive)
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Series iio:adc:ad7476: Regulator support and binding doc | expand

Message

Jonathan Cameron April 24, 2021, 5:03 p.m. UTC 
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

This driver supports a whole load of devices with a range of different
power supply connections.

Lars-Peter Clausen pointed out v1 did not handle the the ad7091r which
an internal voltage reference, but that can be over-driven on the vref_in /
vref_out pin.  The v2 handles that device properly.  I also realized that
I'd the binding was more restrictive for devices with internal references
than it needed to be (required vcc-supply) so I've relaxed that in
the updated bindings.  Also reorganized the big allOf block in the
binding doc to put all the constraints on reference voltage first.

v3 incorporates Lars' suggestion to set the regulator pointer to null
as a way to indicate that we should definitely use the internal reference.

Jonathan Cameron (2):
  iio:adc:ad7476: Handle the different regulators used by various parts.
  dt-bindings:iio:adc:adi,ad7474: Add missing binding document

 .../bindings/iio/adc/adi,ad7476.yaml          | 174 ++++++++++++++++++
 drivers/iio/adc/ad7476.c                      | 116 ++++++++++--
 2 files changed, 275 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml