@@ -13,9 +13,20 @@ Optional properties:
pinctrl binding [1]).
- vcc-supply: a phandle for the regulator supplying 3.3V power.
- elan,trackpoint: touchpad can support a trackpoint (boolean)
+- elan,clickpad: touchpad is a clickpad (the entire surface is a button)
+- elan,middle-button: touchpad has a physical middle button
+- elan,x_traces: number of antennas on the x axis
+- elan,y_traces: number of antennas on the y axis
+- some generic touchscreen properties [2]:
+ * touchscreen-size-x
+ * touchscreen-size-y
+ * touchscreen-x-mm
+ * touchscreen-y-mm
+
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+[2]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
Example:
&i2c1 {
Some new touchpads IC are connected through PS/2 and I2C. On some of these new IC, the I2C part doesn't have all of the information available. We need to be able to forward the touchpad parameters from PS/2 and thus, we need those new optional properties. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> -- changes in v2: - Use of generic touchscreen properties for min/max and resolutions - add elan,middle-button - add elan,*_traces --- Documentation/devicetree/bindings/input/elan_i2c.txt | 11 +++++++++++ 1 file changed, 11 insertions(+)