diff options
| author | Dudley Du <dudl@cypress.com> | 2015-07-30 21:24:16 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-07-30 21:33:59 +0300 |
| commit | ddbb299db0e040aca8e26361ab778224eeacf9d3 (patch) | |
| tree | 09821d38eab2082a963e052a188a382a03ad9ab1 /Documentation/devicetree/bindings/input | |
| parent | 36e9615bd70dc8cd5d7d4831943f788f5231350f (diff) | |
| download | linux-ddbb299db0e040aca8e26361ab778224eeacf9d3.tar.xz | |
Input: cyapa - introduce device tree binding
Add device tree support for Cypress trackpad devices.
Signed-off-by: Dudley Du <dudl@cypress.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/input')
| -rw-r--r-- | Documentation/devicetree/bindings/input/cypress,cyapa.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/cypress,cyapa.txt b/Documentation/devicetree/bindings/input/cypress,cyapa.txt new file mode 100644 index 000000000000..635a3b036630 --- /dev/null +++ b/Documentation/devicetree/bindings/input/cypress,cyapa.txt @@ -0,0 +1,44 @@ +Cypress I2C Touchpad + +Required properties: +- compatible: must be "cypress,cyapa". +- reg: I2C address of the chip. +- interrupt-parent: a phandle for the interrupt controller (see interrupt + binding[0]). +- interrupts: interrupt to which the chip is connected (see interrupt + binding[0]). + +Optional properties: +- wakeup-source: touchpad can be used as a wakeup source. +- pinctrl-names: should be "default" (see pinctrl binding [1]). +- pinctrl-0: a phandle pointing to the pin settings for the device (see + pinctrl binding [1]). +- vcc-supply: a phandle for the regulator supplying 3.3V power. + +[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt +[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + +Example: + &i2c0 { + /* ... */ + + /* Cypress Gen3 touchpad */ + touchpad@67 { + compatible = "cypress,cyapa"; + reg = <0x24>; + interrupt-parent = <&gpio>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */ + wakeup-source; + }; + + /* Cypress Gen5 and later touchpad */ + touchpad@24 { + compatible = "cypress,cyapa"; + reg = <0x24>; + interrupt-parent = <&gpio>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */ + wakeup-source; + }; + + /* ... */ + }; |