diff options
| author |   Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-05-27 18:41:57 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-05-27 18:50:43 -0700 |
| commit | 303b3cf95ed322ab781cafe4c279e58755d3d8ee (patch) | |
| tree | 867aea89772beb6fdf48365d50ee97f19152cb0c /Documentation | |
| parent | Input: elantech - detect middle button based on firmware version (diff) | |
| download | linux-dev-303b3cf95ed322ab781cafe4c279e58755d3d8ee.tar.xz linux-dev-303b3cf95ed322ab781cafe4c279e58755d3d8ee.zip | |
dt-bindings: add more optional properties for elan_i2c touchpads
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>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/elan_i2c.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/elan_i2c.txt b/Documentation/devicetree/bindings/input/elan_i2c.txt index 797607460735..9963247706f2 100644 --- a/Documentation/devicetree/bindings/input/elan_i2c.txt +++ b/Documentation/devicetree/bindings/input/elan_i2c.txt @@ -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 { |