linux_dsm_epyc7002/Documentation/devicetree/bindings/iio/humidity/hts221.txt
Rob Herring 791d3ef2e1 dt-bindings: remove 'interrupt-parent' from bindings
'interrupt-parent' is often documented as part of define bindings, but
it is really outside the scope of a device binding. It's never required
in a given node as it is often inherited from a parent node. Or it can
be implicit if a parent node is an 'interrupt-controller' node. So
remove it from all the binding files.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2018-07-25 14:09:39 -06:00

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* HTS221 STM humidity + temperature sensor
Required properties:
- compatible: should be "st,hts221"
- 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.
- interrupts: interrupt mapping for IRQ. It should be configured with
flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
IRQ_TYPE_EDGE_FALLING.
Refer to interrupt-controller/interrupts.txt for generic interrupt
client node bindings.
Example:
hts221@5f {
compatible = "st,hts221";
reg = <0x5f>;
interrupt-parent = <&gpio0>;
interrupts = <0 IRQ_TYPE_EDGE_RISING>;
};