From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G

---
 kernel/arch/arm/boot/dts/tegra20-colibri-iris.dts |  198 ++++++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 168 insertions(+), 30 deletions(-)

diff --git a/kernel/arch/arm/boot/dts/tegra20-colibri-iris.dts b/kernel/arch/arm/boot/dts/tegra20-colibri-iris.dts
index 57f16c0..425494b 100644
--- a/kernel/arch/arm/boot/dts/tegra20-colibri-iris.dts
+++ b/kernel/arch/arm/boot/dts/tegra20-colibri-iris.dts
@@ -1,15 +1,21 @@
 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
+#include <dt-bindings/input/input.h>
 #include "tegra20-colibri.dtsi"
 
 / {
-	model = "Toradex Colibri T20 256/512 MB on Iris";
-	compatible = "toradex,iris", "toradex,colibri_t20-512", "nvidia,tegra20";
+	model = "Toradex Colibri T20 on Iris";
+	compatible = "toradex,colibri_t20-iris", "toradex,colibri_t20",
+		     "nvidia,tegra20";
 
 	aliases {
+		rtc0 = "/i2c@7000c000/rtc@68";
+		rtc1 = "/i2c@7000d000/pmic@34";
+		rtc2 = "/rtc@7000e000";
 		serial0 = &uarta;
 		serial1 = &uartd;
+		serial2 = &uartb;
 	};
 
 	chosen {
@@ -17,90 +23,222 @@
 	};
 
 	host1x@50000000 {
+		dc@54200000 {
+			rgb {
+				status = "okay";
+				nvidia,panel = <&panel>;
+			};
+		};
+
 		hdmi@54280000 {
 			status = "okay";
+			hdmi-supply = <&reg_5v0>;
 		};
 	};
 
 	pinmux@70000014 {
 		state_default: pinmux {
-			hdint {
+			bl-on {
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
 
-			i2cddc {
+			ddc {
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
 
-			sdio4 {
+			hotplug-detect {
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
 
-			uarta {
+			i2c {
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
 
-			uartd {
+			lcd {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			lm1 {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			mmc {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			mmccd {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			pwm-a-b {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			pwm-c-d {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			ssp {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			uart-a {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			uart-b {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			uart-c {
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+			};
+
+			usbh-pen {
 				nvidia,tristate = <TEGRA_PIN_DISABLE>;
 			};
 		};
 	};
 
+	/* Colibri UART-A */
 	serial@70006000 {
 		status = "okay";
 	};
 
+	/* Colibri UART-C */
+	serial@70006040 {
+		status = "okay";
+	};
+
+	/* Colibri UART-B */
 	serial@70006300 {
 		status = "okay";
 	};
 
-	i2c_ddc: i2c@7000c400 {
+	pwm@7000a000 {
 		status = "okay";
 	};
 
+	/*
+	 * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier
+	 * board)
+	 */
+	i2c@7000c000 {
+		status = "okay";
+		clock-frequency = <400000>;
+
+		/* M41T0M6 real time clock on carrier board */
+		rtc@68 {
+			compatible = "st,m41t0";
+			reg = <0x68>;
+		};
+	};
+
+	/* GEN2_I2C: unused */
+
+	/* CAM_I2C (I2C3): unused */
+
+	/* DDC_CLOCK/DATA on X3 pin 15/16 (e.g. display EDID) */
+	i2c@7000c400 {
+		status = "okay";
+	};
+
+	/* EHCI instance 0: USB1_DP/N -> USBC_P/N */
 	usb@c5000000 {
 		status = "okay";
+		dr_mode = "otg";
 	};
 
 	usb-phy@c5000000 {
 		status = "okay";
+		vbus-supply = <&reg_usbc_vbus>;
 	};
 
+	/* EHCI instance 2: USB3_DP/N -> USBH_P/N */
 	usb@c5008000 {
 		status = "okay";
 	};
 
 	usb-phy@c5008000 {
 		status = "okay";
+		vbus-supply = <&reg_usbh_vbus>;
 	};
 
-	sdhci@c8000600 {
+	/* SPI4: Colibri SSP */
+	spi@7000da00 {
+		status = "okay";
+		spi-max-frequency = <25000000>;
+	};
+
+	/* SD/MMC */
+	mmc@c8000600 {
 		status = "okay";
 		bus-width = <4>;
-		vmmc-supply = <&vcc_sd_reg>;
-		vqmmc-supply = <&vcc_sd_reg>;
+		cd-gpios = <&gpio TEGRA_GPIO(C, 7) GPIO_ACTIVE_LOW>; /* MMCD */
+		no-1-8-v;
 	};
 
-	regulators {
-		regulator@0 {
-			compatible = "regulator-fixed";
-			reg = <0>;
-			regulator-name = "usb_host_vbus";
-			regulator-min-microvolt = <5000000>;
-			regulator-max-microvolt = <5000000>;
-			regulator-boot-on;
-			regulator-always-on;
-			gpio = <&gpio TEGRA_GPIO(W, 2) GPIO_ACTIVE_HIGH>;
-		};
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <255 128 64 32 16 8 4 0>;
+		default-brightness-level = <6>;
+		/* BL_ON */
+		enable-gpios = <&gpio TEGRA_GPIO(T, 4) GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_3v3>;
+		pwms = <&pwm 0 5000000>; /* PWM<A> */
+	};
 
-		vcc_sd_reg: regulator@1 {
-			compatible = "regulator-fixed";
-			reg = <1>;
-			regulator-name = "vcc_sd";
-			regulator-min-microvolt = <3300000>;
-			regulator-max-microvolt = <3300000>;
-			regulator-boot-on;
-			regulator-always-on;
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		wakeup {
+			label = "SODIMM pin 45 wakeup";
+			gpios = <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
+			linux,code = <KEY_WAKEUP>;
+			debounce-interval = <10>;
+			wakeup-source;
 		};
 	};
+
+	panel: panel {
+		/*
+		 * edt,et057090dhu: EDT 5.7" LCD TFT
+		 * edt,et070080dh6: EDT 7.0" LCD TFT
+		 */
+		compatible = "edt,et057090dhu";
+		backlight = <&backlight>;
+		power-supply = <&reg_3v3>;
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_5v0: regulator-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_usbc_vbus: regulator-usbc-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_USB2";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&reg_5v0>;
+	};
+
+	/* USBH_PEN resp. USB_P_EN */
+	reg_usbh_vbus: regulator-usbh-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_USB1";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio TEGRA_GPIO(W, 2) GPIO_ACTIVE_LOW>;
+		vin-supply = <&reg_5v0>;
+	};
 };

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