51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree Overlay for Mayqueen (Open-EP Community) pixpaper display
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* support on NXP FRDM i.MX 93 Development Board
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*
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* Copyright (C) 2026 Wig Cheng <onlywig@gmail.com>
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*/
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#include <dt-bindings/gpio/gpio.h>
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#include "imx93-pinfunc.h"
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/dts-v1/;
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/plugin/;
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&iomuxc {
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pinctrl_epd_ctrl: epdctrlgrp {
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fsl,pins = <
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MX93_PAD_GPIO_IO05__GPIO2_IO05 0x31e /* DC pin */
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MX93_PAD_GPIO_IO06__GPIO2_IO06 0x31e /* RESET pin */
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MX93_PAD_GPIO_IO26__GPIO2_IO26 0x31e /* BUSY pin */
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>;
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};
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pinctrl_lpspi3: lpspi3grp {
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fsl,pins = <
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MX93_PAD_GPIO_IO08__GPIO2_IO08 0x3fe /* SPI3 CE0 */
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MX93_PAD_GPIO_IO09__LPSPI3_SIN 0x3fe /* SPI3 MISO */
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MX93_PAD_GPIO_IO10__LPSPI3_SOUT 0x3fe /* SPI3 MOSI */
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MX93_PAD_GPIO_IO11__LPSPI3_SCK 0x3fe /* SPI3 CLK */
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>;
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};
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};
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&lpspi3 {
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#address-cells = <1>;
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#size-cells = <0>;
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cs-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
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pinctrl-0 = <&pinctrl_lpspi3>, <&pinctrl_epd_ctrl>;
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pinctrl-names = "default";
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status = "okay";
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display@0 {
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compatible = "mayqueen,pixpaper";
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reg = <0>;
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busy-gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
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dc-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>;
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spi-max-frequency = <1000000>;
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};
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};
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