[PATCH 1/2] devicetree: i2c-hid: Add regulator support

Brian Norris
2016-12-02T22:29:44Z

From: Caesar Wang <wxt@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 <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>
---
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

v4: no change
---
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