From 66053d5d1b74be17b133775a4373888ba227e902 Mon Sep 17 00:00:00 2001
From: Andreas Klinger <ak@it-klinger.de>
Date: Mon, 20 Jan 2020 17:44:55 +0100
Subject: [PATCH] dt-bindings: devantech-srf04.yaml: add pm feature
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>
---
.../iio/proximity/devantech-srf04.yaml | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
index 4e80ea7c14750..8afbac24c34eb 100644
--- a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
@@ -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
--
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