From: Vignesh Raghavendra <vigneshr@ti.com>
Date: Mon, 27 Jan 2020 17:52:14 +0000 (+0530)
Subject: arm: dts: k3-j721e-common-proc-board: Add I2C GPIO expander
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-favicon.png?a=commitdiff_plain;h=18402a104e89523b8d31c99efd58011594f65c05;p=u-boot.git

arm: dts: k3-j721e-common-proc-board: Add I2C GPIO expander

Add I2C GPIO expander required to power cycle MMC/SD

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---

diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts b/arch/arm/dts/k3-j721e-common-proc-board.dts
index f33a6d5bcf..d216b707fd 100644
--- a/arch/arm/dts/k3-j721e-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-common-proc-board.dts
@@ -107,6 +107,13 @@
 			J721E_IOPAD(0x214, PIN_OUTPUT, 4) /* (V4) MCAN1_TX.USB1_DRVVBUS */
 		>;
 	};
+
+	main_i2c0_pins_default: main-i2c0-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x220, PIN_INPUT_PULLUP, 0) /* (AC5) I2C0_SCL */
+			J721E_IOPAD(0x224, PIN_INPUT_PULLUP, 0) /* (AA5) I2C0_SDA */
+		>;
+	};
 };
 
 &wkup_pmx0 {
@@ -145,3 +152,23 @@
 	pinctrl-0 = <&wkup_i2c0_pins_default>;
 	clock-frequency = <400000>;
 };
+
+&main_i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c0_pins_default>;
+	clock-frequency = <400000>;
+
+	exp1: gpio@20 {
+		compatible = "ti,tca6416";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	exp2: gpio@22 {
+		compatible = "ti,tca6424";
+		reg = <0x22>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+};