From 16c577629b40aa45c89c2b61f74e714b47a10744 Mon Sep 17 00:00:00 2001
From: Cody Xie <cody.xie@rock-chips.com>
Date: Fri, 15 Sep 2023 11:25:27 +0800
Subject: [PATCH] arm64: dts: rockchip: add dtsi for nca9539 io expander on
 rk3588 vehicle EVBV22

Change-Id: Ia3392162363d2a683eca5d852b7e50d1eb5dba24
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>
---
 ...8-vehicle-evb-v22-nca9539-io-expander.dtsi | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3588-vehicle-evb-v22-nca9539-io-expander.dtsi

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-vehicle-evb-v22-nca9539-io-expander.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-vehicle-evb-v22-nca9539-io-expander.dtsi
new file mode 100644
index 000000000000..bfb50d3ea982
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3588-vehicle-evb-v22-nca9539-io-expander.dtsi
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Rockchip Electronics Co., Ltd.
+ *
+ */
+
+/ {
+	nca9539_vdd: nca9539-vdd3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "nca9539_vdd";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20>; // NCA9539 POR
+		vin-supply = <&vcc_3v3_s0>;
+	};
+
+};
+
+&i2c5 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	nca9539_gpio: gpio@74 {
+		status = "okay";
+		compatible = "novo,nca9539-gpio";
+		reg = <0x74>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		ngpios = <16>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		vdd-supply = <&nca9539_vdd>;
+	};
+};