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. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1628715 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx> --- Documentation/devicetree/bindings/input/elan_i2c.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/input/elan_i2c.txt b/Documentation/devicetree/bindings/input/elan_i2c.txt index 797607460735..ace6bcb0b4eb 100644 --- a/Documentation/devicetree/bindings/input/elan_i2c.txt +++ b/Documentation/devicetree/bindings/input/elan_i2c.txt @@ -13,6 +13,14 @@ 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,max_x: the maximum reported value on the X axis +- elan,max_y: the maximum reported value on the Y axis +- elan,min_x: the minimum reported value on the X axis +- elan,min_y: the minimum reported value on the Y axis +- elan,x_res: the resolution of the X axis (in units per mm) +- elan,y_res: the resolution of the Y axis (in units per mm) +- elan,width: max reported width of a blob [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt -- 2.14.3
