On Fri, Oct 12, 2018 at 04:24:11PM +0200, Benjamin Tissoires wrote: > 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 Can't we use standard touchscreen properties here? (Yes, I get this is a touchpad, not touchscreen). Rob
