From: Caesar Wang <w...@rock-chips.com>

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

Signed-off-by: Caesar Wang <w...@rock-chips.com>
Cc: Rob Herring <robh...@kernel.org>
Cc: Jiri Kosina <ji...@kernel.org>
Cc: linux-in...@vger.kernel.org
Signed-off-by: Brian Norris <briannor...@chromium.org>
---
v2:
 * add compatible property for wacom, per Rob's request
 * name the regulator property specifically (VDD)

v3:
 * remove wacom property, per Benjamin's request
 * add delay property

 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 {
-- 
2.8.0.rc3.226.g39d4020

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