linux-kernel - [PATCH v2 2/2] arm64: dts: ti: k3-am64: Add GPIO expander on I2C0

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Message-Id: <20230923080046.5373-3-rogerq@kernel.org>
Date:   Sat, 23 Sep 2023 11:00:46 +0300
From:   Roger Quadros <rogerq@...nel.org>
To:     nm@...com, afd@...com, robh+dt@...nel.org
Cc:     vigneshr@...com, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, srk@...com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Roger Quadros <rogerq@...nel.org>
Subject: [PATCH v2 2/2] arm64: dts: ti: k3-am64: Add GPIO expander on I2C0

A TCA9554 GPIO expander is present on I2C0. Add it.

Signed-off-by: Roger Quadros <rogerq@...nel.org>
---
 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index b4a1f73d4fb1..3dccc597f516 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -392,6 +392,15 @@ &main_i2c0 {
 	pinctrl-0 = <&main_i2c0_pins_default>;
 	clock-frequency = <400000>;
 
+	gpio@38 {
+		/* TCA9554 */
+		compatible = "nxp,pca9554";
+		reg = <0x38>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names = "HSE_DETECT";
+	};
+
 	eeprom@50 {
 		/* AT24CM01 */
 		compatible = "atmel,24c1024";
-- 
2.34.1