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      1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
      2 /*
      3  * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
      4  * Copyright (c) 2020 Engicam srl
      5  * Copyright (c) 2020 Amarula Solutons(India)
      6  */
      7 
      8 /dts-v1/;
      9 #include "stm32mp157.dtsi"
     10 #include "stm32mp157a-microgea-stm32mp1.dtsi"
     11 #include "stm32mp15-pinctrl.dtsi"
     12 #include "stm32mp15xxaa-pinctrl.dtsi"
     13 #include <dt-bindings/gpio/gpio.h>
     14 
     15 / {
     16 	model = "Engicam MicroGEA STM32MP1 MicroDev 2.0 7\" Open Frame";
     17 	compatible = "engicam,microgea-stm32mp1-microdev2.0-of7",
     18 		     "engicam,microgea-stm32mp1", "st,stm32mp157";
     19 
     20 	aliases {
     21 		serial0 = &uart4;
     22 		serial1 = &uart8;
     23 	};
     24 
     25 	chosen {
     26 		stdout-path = "serial0:115200n8";
     27 	};
     28 
     29 	backlight: backlight {
     30 		compatible = "gpio-backlight";
     31 		gpios = <&gpiod 13 GPIO_ACTIVE_HIGH>;
     32 		default-on;
     33 	};
     34 
     35 	lcd_3v3: regulator-lcd-3v3 {
     36 		compatible = "regulator-fixed";
     37 		regulator-name = "lcd_3v3";
     38 		regulator-min-microvolt = <3300000>;
     39 		regulator-max-microvolt = <3300000>;
     40 		gpio = <&gpiof 10 GPIO_ACTIVE_HIGH>;
     41 		enable-active-high;
     42 		regulator-always-on;
     43 		power-supply = <&panel_pwr>;
     44 	};
     45 
     46 	panel_pwr: regulator-panel-pwr {
     47 		compatible = "regulator-fixed";
     48 		regulator-name = "panel_pwr";
     49 		regulator-min-microvolt = <3300000>;
     50 		regulator-max-microvolt = <3300000>;
     51 		gpio = <&gpiob 10 GPIO_ACTIVE_HIGH>;
     52 		regulator-always-on;
     53 	};
     54 
     55 	panel {
     56 		compatible = "auo,b101aw03";
     57 		backlight = <&backlight>;
     58 		enable-gpios = <&gpiof 2 GPIO_ACTIVE_HIGH>;
     59 		power-supply = <&lcd_3v3>;
     60 
     61 		port {
     62 			panel_in: endpoint {
     63 				remote-endpoint = <&ltdc_ep0_out>;
     64 			};
     65 		};
     66 	};
     67 };
     68 
     69 &i2c2 {
     70 	i2c-scl-falling-time-ns = <20>;
     71 	i2c-scl-rising-time-ns = <185>;
     72 	pinctrl-names = "default", "sleep";
     73 	pinctrl-0 = <&i2c2_pins_a>;
     74 	pinctrl-1 = <&i2c2_sleep_pins_a>;
     75 	status = "okay";
     76 };
     77 
     78 &ltdc {
     79 	pinctrl-names = "default";
     80 	pinctrl-0 = <&ltdc_pins>;
     81 	status = "okay";
     82 
     83 	port {
     84 		ltdc_ep0_out: endpoint@0 {
     85 			reg = <0>;
     86 			remote-endpoint = <&panel_in>;
     87 		};
     88 	};
     89 };
     90 
     91 &pinctrl {
     92 	ltdc_pins: ltdc-0 {
     93 		pins {
     94 			pinmux = <STM32_PINMUX('G', 10, AF14)>,	/* LTDC_B2 */
     95 				 <STM32_PINMUX('H', 12, AF14)>,	/* LTDC_R6 */
     96 				 <STM32_PINMUX('H', 11, AF14)>,	/* LTDC_R5 */
     97 				 <STM32_PINMUX('D', 10, AF14)>,	/* LTDC_B3 */
     98 				 <STM32_PINMUX('D', 9, AF14)>,	/* LTDC_B0 */
     99 				 <STM32_PINMUX('E', 5, AF14)>,	/* LTDC_G0 */
    100 				 <STM32_PINMUX('E', 6, AF14)>,	/* LTDC_G1 */
    101 				 <STM32_PINMUX('E', 13, AF14)>,	/* LTDC_DE */
    102 				 <STM32_PINMUX('E', 15, AF14)>,	/* LTDC_R7 */
    103 				 <STM32_PINMUX('G', 7, AF14)>,	/* LTDC_CLK */
    104 				 <STM32_PINMUX('G', 12, AF14)>,	/* LTDC_B1 */
    105 				 <STM32_PINMUX('H', 2, AF14)>,	/* LTDC_R0 */
    106 				 <STM32_PINMUX('H', 3, AF14)>,	/* LTDC_R1 */
    107 				 <STM32_PINMUX('H', 8, AF14)>,	/* LTDC_R2 */
    108 				 <STM32_PINMUX('H', 9, AF14)>,	/* LTDC_R3 */
    109 				 <STM32_PINMUX('H', 10, AF14)>,	/* LTDC_R4 */
    110 				 <STM32_PINMUX('H', 13, AF14)>,	/* LTDC_G2 */
    111 				 <STM32_PINMUX('H', 14, AF14)>,	/* LTDC_G3 */
    112 				 <STM32_PINMUX('H', 15, AF14)>,	/* LTDC_G4 */
    113 				 <STM32_PINMUX('I', 0, AF14)>,	/* LTDC_G5 */
    114 				 <STM32_PINMUX('I', 1, AF14)>,	/* LTDC_G6 */
    115 				 <STM32_PINMUX('I', 2, AF14)>,	/* LTDC_G7 */
    116 				 <STM32_PINMUX('I', 4, AF14)>,	/* LTDC_B4 */
    117 				 <STM32_PINMUX('I', 5, AF14)>,	/* LTDC_B5 */
    118 				 <STM32_PINMUX('B', 8, AF14)>,	/* LTDC_B6 */
    119 				 <STM32_PINMUX('I', 7, AF14)>,	/* LTDC_B7 */
    120 				 <STM32_PINMUX('I', 9, AF14)>,	/* LTDC_VSYNC */
    121 				 <STM32_PINMUX('I', 10, AF14)>;	/* LTDC_HSYNC */
    122 			bias-disable;
    123 			drive-push-pull;
    124 			slew-rate = <3>;
    125 		};
    126 	};
    127 };
    128 
    129 &sdmmc1 {
    130 	bus-width = <4>;
    131 	disable-wp;
    132 	pinctrl-names = "default", "opendrain", "sleep";
    133 	pinctrl-0 = <&sdmmc1_b4_pins_a>;
    134 	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
    135 	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
    136 	st,neg-edge;
    137 	vmmc-supply = <&vdd>;
    138 	status = "okay";
    139 };
    140 
    141 &uart4 {
    142 	pinctrl-names = "default", "sleep", "idle";
    143 	pinctrl-0 = <&uart4_pins_a>;
    144 	pinctrl-1 = <&uart4_sleep_pins_a>;
    145 	pinctrl-2 = <&uart4_idle_pins_a>;
    146 	status = "okay";
    147 };
    148 
    149 /* J31: RS323 */
    150 &uart8 {
    151 	pinctrl-names = "default";
    152 	pinctrl-0 = <&uart8_pins_a>;
    153 	status = "okay";
    154 };
    155