From 2caa6d6baae38dce088d1a6e48c52088eab15bf1 Mon Sep 17 00:00:00 2001
From: Artemis Tosini <me@artem.ist>
Date: Tue, 21 Nov 2023 03:31:26 +0000
Subject: [PATCH] Add display, trng, and i2c to the device tree

---
 boards/xtensa/minico2/minico2-pinctrl.dtsi | 20 +++++++++++
 boards/xtensa/minico2/minico2.dts          | 42 ++++++++++++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/boards/xtensa/minico2/minico2-pinctrl.dtsi b/boards/xtensa/minico2/minico2-pinctrl.dtsi
index 8d2c14c..afdd8e3 100644
--- a/boards/xtensa/minico2/minico2-pinctrl.dtsi
+++ b/boards/xtensa/minico2/minico2-pinctrl.dtsi
@@ -13,4 +13,24 @@
 			bias-pull-up;
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <I2C0_SDA_GPIO32>,
+				 <I2C0_SDA_GPIO33>;
+			bias-pull-up;
+			drive-open-drain;
+			output-high;
+		};
+	};
+
+	spi2_default: spi2_default {
+		group1 {
+			pinmux = <SPIM2_SCLK_GPIO16>,
+				 <SPIM2_CSEL_GPIO17>;
+		};
+		group2 {
+			pinmux = <SPIM2_MOSI_GPIO4>;
+		};
+	};
 };
diff --git a/boards/xtensa/minico2/minico2.dts b/boards/xtensa/minico2/minico2.dts
index 907aa91..9cca8cc 100644
--- a/boards/xtensa/minico2/minico2.dts
+++ b/boards/xtensa/minico2/minico2.dts
@@ -11,6 +11,7 @@
 		zephyr,console = &uart0;
 		zephyr,shell-uart = &uart0;
 		zephyr,flash = &flash0;
+		zephyr,display = &epd;
 	};
 };
 
@@ -29,6 +30,47 @@
 	pinctrl-names = "default";
 };
 
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+	sda-gpios = <&gpio0 32 GPIO_OPEN_DRAIN>;
+	scl-gpios = <&gpio0 33 GPIO_OPEN_DRAIN>;
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
+
+&spi2 {
+	status = "okay";
+	pinctrl-0 = <&spi2_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	epd: sd16xxfb@0 {
+		compatible = "gooddisplay,gdey0213b74", "solomon,ssd1680";
+		spi-max-frequency = <4000000>;
+		reg = <0>;
+		width = <250>;
+		height = <122>;
+		dc-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
+		busy-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&trng0 {
+	status = "okay";
+};
+
 /* Stolen from an Espressif devkit's dts, thanks Espressif */
 &flash0 {
 	status = "okay";