diff options
Diffstat (limited to 'arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts')
-rw-r--r-- | arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts new file mode 100644 index 000000000000..5c0752655c70 --- /dev/null +++ b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts @@ -0,0 +1,91 @@ +/* + * Device Tree overlay for Adafruit PiTFT 2.8" capacitive touch screen + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + pitft_pins: pitft_pins { + brcm,pins = <24 25>; + brcm,function = <0 1>; /* in out */ + brcm,pull = <2 0>; /* pullup none */ + }; + }; + }; + + fragment@3 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pitft: pitft@0{ + compatible = "ilitek,ili9340"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pitft_pins>; + + spi-max-frequency = <32000000>; + rotate = <90>; + fps = <25>; + bgr; + buswidth = <8>; + dc-gpios = <&gpio 25 0>; + debug = <0>; + }; + }; + }; + + fragment@4 { + target = <&i2c1>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + ft6236: ft6236@38 { + compatible = "focaltech,ft6236"; + reg = <0x38>; + + interrupt-parent = <&gpio>; + interrupts = <24 2>; + touchscreen-size-x = <240>; + touchscreen-size-y = <320>; + }; + }; + }; + + __overrides__ { + speed = <&pitft>,"spi-max-frequency:0"; + rotate = <&pitft>,"rotate:0"; + fps = <&pitft>,"fps:0"; + debug = <&pitft>,"debug:0"; + touch-sizex = <&ft6236>,"touchscreen-size-x?"; + touch-sizey = <&ft6236>,"touchscreen-size-y?"; + touch-invx = <&ft6236>,"touchscreen-inverted-x?"; + touch-invy = <&ft6236>,"touchscreen-inverted-y?"; + touch-swapxy = <&ft6236>,"touchscreen-swapped-x-y?"; + }; +}; |