diff options
Diffstat (limited to 'arch/arm/boot/dts/overlays/exc3000-overlay.dts')
| -rw-r--r-- | arch/arm/boot/dts/overlays/exc3000-overlay.dts | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/overlays/exc3000-overlay.dts b/arch/arm/boot/dts/overlays/exc3000-overlay.dts new file mode 100644 index 000000000000..6f087fb20661 --- /dev/null +++ b/arch/arm/boot/dts/overlays/exc3000-overlay.dts @@ -0,0 +1,48 @@ +// Device tree overlay for I2C connected EETI EXC3000 multiple touch controller +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835"; + + fragment@0 { + target = <&gpio>; + __overlay__ { + exc3000_pins: exc3000_pins { + brcm,pins = <4>; // interrupt + brcm,function = <0>; // in + brcm,pull = <2>; // pull-up + }; + }; + }; + + fragment@1 { + target = <&i2c1>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + exc3000: exc3000@2a { + compatible = "eeti,exc3000"; + reg = <0x2a>; + pinctrl-names = "default"; + pinctrl-0 = <&exc3000_pins>; + interrupt-parent = <&gpio>; + interrupts = <4 8>; // active low level-sensitive + touchscreen-size-x = <4096>; + touchscreen-size-y = <4096>; + }; + }; + }; + + __overrides__ { + interrupt = <&exc3000_pins>,"brcm,pins:0", + <&exc3000>,"interrupts:0"; + sizex = <&exc3000>,"touchscreen-size-x:0"; + sizey = <&exc3000>,"touchscreen-size-y:0"; + invx = <&exc3000>,"touchscreen-inverted-x?"; + invy = <&exc3000>,"touchscreen-inverted-y?"; + swapxy = <&exc3000>,"touchscreen-swapped-x-y?"; + }; +}; |