linux-kernel - [PATCH] arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander

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Message-ID: <20230919050340.16156-1-r-gunasekaran@ti.com>
Date:   Tue, 19 Sep 2023 10:33:40 +0530
From:   Ravi Gunasekaran <r-gunasekaran@...com>
To:     <nm@...com>, <vigneshr@...com>
CC:     <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <r-gunasekaran@...com>
Subject: [PATCH] arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander

AM654 baseboard has two TCA9554 I/O expander on the WKUP_I2C0 bus.
The expander at address 0x38 is used to detect daughter cards.
Add a node for this I/O expander.

Signed-off-by: Ravi Gunasekaran <r-gunasekaran@...com>
---
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index f5c26e9fba98..035b20386ef3 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -381,6 +381,13 @@
 		interrupt-controller;
 		#interrupt-cells = <2>;
 	};
+
+	pca9554_1: gpio@38 {
+		compatible = "nxp,pca9554";
+		reg = <0x38>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
 };
 
 &mcu_i2c0 {

base-commit: dfa449a58323de195773cf928d99db4130702bf7
-- 
2.17.1