Adds device tree documentation for Raspberry Pi's official 7" touchscreen. The firmware mailbox interface allows the ARM core to control the device.
Signed-off-by: Nicolas Saenz Julienne <[email protected]> --- .../touchscreen/raspberrypi,firmware-ts.txt | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt new file mode 100644 index 000000000000..d28189476279 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt @@ -0,0 +1,25 @@ +Raspberry Pi 3 firmware based 7" touchscreen +===================================== + +Required properties: + - compatible: "raspberrypi,firmware-ts" + +Optional properties: + - touchscreen-size-x: See touchscreen.txt + - touchscreen-size-y: See touchscreen.txt + - touchscreen-inverted-x: See touchscreen.txt + - touchscreen-inverted-y: See touchscreen.txt + - touchscreen-swapped-x-y: See touchscreen.txt + +Example: + +firmware: firmware-rpi { + compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; + mboxes = <&mailbox>; + + ts: touchscreen { + compatible = "raspberrypi,firmware-ts"; + touchscreen-size-x = <800>; + touchscreen-size-y = <480>; + }; +}; -- 2.19.2
