[1/2] input: keyboard: DT bindings for the D-Link DIR-685 touchkeys

Commit Message

Linus Walleij May 20, 2017, 4:56 p.m. UTC

This adds device tree bindings for the D-Link DIR-685 touchkeys.
It's a simple homebrewn touchkey controller (by D-Link referred
to as "touchpad") on I2C.

Cc: [e-mail]
Acked-by: Rob Herring <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>
---
ChangeLog v1->v2:
- Rename from "touchpad" to touchkeys" consistently.
- Add Rob's ACK.
---
 .../bindings/input/dlink,dir685-touchkeys.txt       | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt

Patch

diff --git a/Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt b/Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt
new file mode 100644
index 000000000000..10dec1c57abf
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt
@@ -0,0 +1,21 @@ 
+* D-Link DIR-685 Touchkeys
+
+This is a I2C one-off touchkey controller based on the Cypress Semiconductor
+CY8C214 MCU with some firmware in its internal 8KB flash. The circuit
+board inside the router is named E119921.
+
+The touchkey device node should be placed inside an I2C bus node.
+
+Required properties:
+- compatible: must be "dlink,dir685-touchkeys"
+- reg: the I2C address of the touchkeys
+- interrupts: reference to the interrupt number
+
+Example:
+
+touchkeys@26 {
+	compatible = "dlink,dir685-touchkeys";
+	reg = <0x26>;
+	interrupt-parent = <&gpio0>;
+	interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
+};