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95 lines
1.7 KiB
Plaintext
95 lines
1.7 KiB
Plaintext
/*
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* vc4-kms-dpi-hyperpixel4.dtsi
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* Commmon initialisation for HyperPixel DPI displays
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*/
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/pinctrl/bcm2835.h>
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target-path = "/";
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__overlay__ {
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spi {
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compatible = "spi-gpio";
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-0 = <&spi_pins>;
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pinctrl-names = "default";
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sck-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
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num-chipselects = <1>;
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sck-idle-input;
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panel: display@0 {
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reg = <0>;
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/* 100 kHz */
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spi-max-frequency = <100000>;
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backlight = <&backlight>;
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rotation = <0>;
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port {
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panel_in: endpoint {
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remote-endpoint = <&dpi_out>;
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};
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};
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};
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};
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backlight: backlight {
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compatible = "gpio-backlight";
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gpios = <&gpio 19 0>;
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};
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};
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};
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fragment@1 {
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target = <&dpi>;
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__overlay__ {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
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port {
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dpi_out: endpoint {
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remote-endpoint = <&panel_in>;
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};
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};
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};
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};
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fragment@2 {
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target = <&gpio>;
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__overlay__ {
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spi_pins: hyperpixel4_spi_pins {
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brcm,pins = <27 18 26>;
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brcm,pull = <BCM2835_PUD_UP BCM2835_PUD_UP BCM2835_PUD_OFF>;
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brcm,function = <0>;
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};
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};
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};
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fragment@3 {
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target-path = "/";
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__overlay__ {
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i2c_gpio: i2c@0 {
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compatible = "i2c-gpio";
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gpios = <&gpio 10 0 /* sda */
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&gpio 11 0>; /* scl */
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i2c-gpio,delay-us = <4>; /* ~100 kHz */
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#address-cells = <1>;
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#size-cells = <0>;
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};
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};
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};
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__overrides__ {
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rotate = <&panel>, "rotation:0";
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};
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};
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