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dt-bindings: iio: humidity: hts221: support open drain mode

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Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lorenzo Bianconi 2017-07-17 19:39:04 +02:00 committed by Jonathan Cameron
parent 9251f7aaa5
commit 21d841b2a4
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/iio/humidity/hts221.txt
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@ -5,6 +5,14 @@ Required properties:
- reg: i2c address of the sensor / spi cs line
Optional properties:
- drive-open-drain: the interrupt/data ready line will be configured
as open drain, which is useful if several sensors share the same
interrupt line. This is a boolean property.
If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or
IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line
when it is not active, whereas a pull-up one is needed when interrupt
line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.
Refer to pinctrl/pinctrl-bindings.txt for the property description.
- interrupt-parent: should be the phandle for the interrupt controller
- interrupts: interrupt mapping for IRQ. It should be configured with
flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or