diff mbox series

[2/4] arm: dts: k3-j721e-common-proc-board: Add I2C GPIO expander

Message ID 20200127175216.10380-3-vigneshr@ti.com
State Accepted
Commit 18402a104e89523b8d31c99efd58011594f65c05
Headers show
Series J721e: Add I2C nodes | expand

Commit Message

Vignesh Raghavendra Jan. 27, 2020, 5:52 p.m. UTC 
Add I2C GPIO expander required to power cycle MMC/SD

Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
---
 arch/arm/dts/k3-j721e-common-proc-board.dts | 27 +++++++++++++++++++++
 1 file changed, 27 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts b/arch/arm/dts/k3-j721e-common-proc-board.dts
index f33a6d5bcff5..d216b707fd2c 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 at 20 {
+		compatible = "ti,tca6416";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	exp2: gpio at 22 {
+		compatible = "ti,tca6424";
+		reg = <0x22>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+};