From 0384e7dd67fdb3d0199b741daecc3d4d0b0d3124 Mon Sep 17 00:00:00 2001
From: Caesar Wang <wxt@rock-chips.com>
Date: Fri, 2 Dec 2016 14:18:59 -0800
Subject: [PATCH] devicetree: i2c-hid: Add regulator support

Document a "vdd-supply" and an initialization delay. Can be used for
powering on/off a HID.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: linux-input@vger.kernel.org
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/devicetree/bindings/input/hid-over-i2c.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/hid-over-i2c.txt b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
index 488edcb264c4..1ea290167652 100644
--- a/Documentation/devicetree/bindings/input/hid-over-i2c.txt
+++ b/Documentation/devicetree/bindings/input/hid-over-i2c.txt
@@ -17,6 +17,11 @@ Required properties:
 - interrupt-parent: the phandle for the interrupt controller
 - interrupts: interrupt line
 
+Optional properties:
+- vdd-supply: phandle of the regulator that provides the supply voltage.
+- init-delay-ms: time required by the device after power-on before it is ready
+  for communication.
+
 Example:
 
 	i2c-hid-dev@2c {