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dt-bindings: devantech-srf04.yaml: add pm feature

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Add GPIO line and startup time for usage of power management

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andreas Klinger 2020-01-20 17:44:55 +01:00 committed by Jonathan Cameron
parent 9960c70949
commit 66053d5d1b
1 changed files with 18 additions and 0 deletions
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18
Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
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@ -51,6 +51,24 @@ properties:
the time between two interrupts is measured in the driver.
maxItems: 1
power-gpios:
description:
Definition of the GPIO for power management of connected peripheral
(output).
This GPIO can be used by the external hardware for power management.
When the device gets suspended it's switched off and when it resumes
it's switched on again. After some period of inactivity the driver
get suspended automatically (autosuspend feature).
maxItems: 1
startup-time-ms:
description:
This is the startup time the device needs after a resume to be up and
running.
minimum: 0
maximum: 1000
default: 100
required:
- compatible
- trig-gpios