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From:   Ravi Gunasekaran <r-gunasekaran@ti.com>
To:     <nm@ti.com>, <vigneshr@ti.com>, <afd@ti.com>
CC:     <kristo@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <r-gunasekaran@ti.com>
Subject: [PATCH v2] arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander
Date:   Wed, 20 Sep 2023 11:08:34 +0530
Message-ID: <20230920053834.21399-1-r-gunasekaran@ti.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

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@ti.com>
---
Changes from v1:
---------------
* Moved the expander node @38 to appear before the one at address 39.
* Removed the label pca9554_1 for the node as it is not used.

v1: https://lore.kernel.org/all/20230919050340.16156-1-r-gunasekaran@ti.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..1637ec5ab5ed 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -369,6 +369,13 @@
 		ti,enable-vout-discharge;
 	};
 
+	gpio@38 {
+		compatible = "nxp,pca9554";
+		reg = <0x38>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
 	pca9554: gpio@39 {
 		compatible = "nxp,pca9554";
 		reg = <0x39>;

base-commit: dfa449a58323de195773cf928d99db4130702bf7
-- 
2.17.1