From 0b9f28fed3f70ff9a0380fe308739dd72a30a6f6 Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Fri, 21 Dec 2018 00:47:40 -0800 Subject: Input: add official Raspberry Pi's touchscreen driver Add's support to Raspberry Pi's 7" Touch device. Instead of using a conventional bus all information is copied into a memory mapped area by RPi's firmware. Based on the driver found in RPi's kernel repository. Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Rob Herring Acked-by: Eric Anholt Signed-off-by: Dmitry Torokhov --- .../input/touchscreen/raspberrypi,firmware-ts.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt (limited to 'Documentation') 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..2a1af240ccc3 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt @@ -0,0 +1,26 @@ +Raspberry Pi firmware based 7" touchscreen +===================================== + +Required properties: + - compatible: "raspberrypi,firmware-ts" + +Optional properties: + - firmware: Reference to RPi's firmware device node + - 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"; + mboxes = <&mailbox>; + + ts: touchscreen { + compatible = "raspberrypi,firmware-ts"; + touchscreen-size-x = <800>; + touchscreen-size-y = <480>; + }; +}; -- cgit v1.2.3