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70 lines
1.5 KiB
Plaintext
70 lines
1.5 KiB
Plaintext
/*
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* Device Tree overlay to connect a JDI LT070ME05000 DSI panel to DSI1.
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* This uses 4 DSI data lanes, so can only be used with a Compute Module.
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*
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* Credit to forum user gizmomouse on
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* https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=253912 and
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* Andrey Vostrukhin of Harlab for the overlay.
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*
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* Refer to https://github.com/harlab/CM4_LCD_LT070ME05000 for schematics and
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* other documentation.
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&dsi1>;
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__overlay__{
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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port {
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dsi_out_port:endpoint {
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remote-endpoint = <&panel_dsi_port>;
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};
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};
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lt070me05000:lt070me05000@0 {
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compatible = "jdi,lt070me05000";
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status = "okay";
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reg = <0>;
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reset-gpios = <&gpio 17 1>; // LCD RST
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enable-gpios = <&gpio 4 0>; // LCD Enable
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dcdc-en-gpios = <&gpio 5 0>; // LCD DC-DC Enable
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port {
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panel_dsi_port: endpoint {
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remote-endpoint = <&dsi_out_port>;
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};
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};
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};
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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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lt070me05000_pins: lt070me05000_pins {
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brcm,pins = <4 5 17>;
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brcm,function = <1 1 1>; // out
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brcm,pull = <0 0 0>; // off
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};
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};
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};
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__overrides__ {
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reset = <<070me05000_pins>,"brcm,pins:8",
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<<070me05000>,"reset-gpios:4";
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enable = <<070me05000_pins>,"brcm,pins:0",
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<<070me05000>,"enable-gpios:4";
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dcdc-en = <<070me05000_pins>,"brcm,pins:4",
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<<070me05000>,"dcdc-en-gpios:4";
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};
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};
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