From: Ravi Gunasekaran <r-gunasekaran@ti.com>
To: <nm@ti.com>, <vigneshr@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] arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander
Date: Tue, 19 Sep 2023 10:33:40 +0530 [thread overview]
Message-ID: <20230919050340.16156-1-r-gunasekaran@ti.com> (raw)
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>
---
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
next reply other threads:[~2023-09-19 5:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 5:03 Ravi Gunasekaran [this message]
2023-09-19 12:21 ` [PATCH] arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander Andrew Davis
2023-09-20 4:17 ` Ravi Gunasekaran
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