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84 lines
1.6 KiB
Plaintext
84 lines
1.6 KiB
Plaintext
/*
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* adafruit-st7735r-overlay.dts
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*
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* ST7735R based SPI LCD displays. Either
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* Adafruit 1.8" 160x128
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* or
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* Okaya 1.44" 128x128
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*/
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/gpio/gpio.h>
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&spidev0>;
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__overlay__ {
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status = "disabled";
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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adafruit_pins: adafruit_pins {
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brcm,pins = <25 24>;
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brcm,function = <1>; /* out */
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};
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backlight_pins: backlight_pins {
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brcm,pins = <18>;
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brcm,function = <1>; /* out */
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};
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};
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};
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fragment@2 {
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target-path = "/";
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__overlay__ {
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af18_backlight: backlight {
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compatible = "gpio-backlight";
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gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
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pinctrl-names = "default";
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pinctrl-0 = <&backlight_pins>;
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};
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};
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};
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fragment@3 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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af18: adafruit18@0 {
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compatible = "jianda,jd-t18003-t01";
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reg = <0>;
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spi-max-frequency = <32000000>;
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dc-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
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rotate = <90>;
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pinctrl-names = "default";
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pinctrl-0 = <&adafruit_pins>;
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backlight = <&af18_backlight>;
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};
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};
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};
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__overrides__ {
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128x128 = <&af18>, "compatible=okaya,rh128128t";
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speed = <&af18>,"spi-max-frequency:0";
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rotate = <&af18>,"rotate:0";
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dc_pin = <&af18>,"dc-gpios:4", <&adafruit_pins>,"brcm,pins:4";
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reset_pin = <&af18>,"reset-gpios:4",
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<&adafruit_pins>,"brcm,pins:0";
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led_pin = <&af18_backlight>,"gpios:4",
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<&backlight_pins>,"brcm,pins:0";
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};
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};
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