From a0bdfa3b38982cff581f8db8573064526a210434 Mon Sep 17 00:00:00 2001
From: Hyeonki Hong <hhk7734@gmail.com>
Date: Fri, 27 Mar 2020 16:54:02 +0900
Subject: [PATCH 07/74] ODROID-N2: ARM64/dts: add i2c2, i2c3 node

Change-Id: I00e3748a6f8474a99d05200afc60b8d794f75c96
---
 .../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
index 9e29fdbf149d..758528f988dd 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
@@ -17,6 +17,8 @@ / {
 
 	aliases {
 		ethernet0 = &ethmac;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
 		serial0 = &uart_AO;
 		serial1 = &uart_A;
 	};
@@ -485,6 +487,35 @@ hdmi_tx_tmds_out: endpoint {
 	};
 };
 
+&i2c2 {
+	status = "okay";
+
+	/*
+	 * 40 Pin Header : SDA(GPIOX.17->3 Pin)
+	 *		   SCL(GPIOX.18->5 Pin)
+	 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_master_pins1>;
+
+	/* default 400k */
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	/* default i2c clock-frequency is 100Khz */
+	status = "okay";
+
+	/*
+	 * 40 Pin Header : SDA(GPIOA.14->27 Pin)
+	 *		   SCL(GPIOA.15->28 Pin)
+	 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_master_pins2>;
+
+	/* default 100k */
+	clock-frequency = <100000>;
+};
+
 &ir {
 	status = "okay";
 	pinctrl-0 = <&remote_input_ao_pins>;
@@ -492,6 +523,28 @@ &ir {
 	linux,rc-map-name = "rc-odroid";
 };
 
+&periphs_pinctrl {
+	i2c2_master_pins1:i2c2-master-pins1 {
+		mux {
+			groups = "i2c2_sda_x",
+				"i2c2_sck_x";
+			function = "i2c2";
+			bias-pull-up;
+			drive-strength-microamp = <3000>;
+		};
+	};
+
+	i2c3_master_pins2:i2c2-master-pins2 {
+		mux {
+			groups = "i2c3_sda_a",
+				"i2c3_sck_a";
+			function = "i2c3";
+			bias-pull-up;
+			drive-strength-microamp = <3000>;
+		};
+	};
+};
+
 &pwm_ab {
 	pinctrl-0 = <&pwm_a_e_pins>;
 	pinctrl-names = "default";
-- 
2.25.1