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 f33a6d5bcff566cea0005ba57abc10caa09c7d3d..d216b707fd2cbc144c8002f4450a47d19dbb1910 100644 (file)
--- 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>;
+       };
+};