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From: Farouk Bouabid <farouk.bouabid@cherry.de>
Date: Tue, 11 Jun 2024 13:43:58 +0200
Subject: [PATCH v3 7/7] arm64: dts: rockchip: add mule i2c mux (0x18) on
 rk3588-jaguar
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References: <20240611-dev-mule-i2c-mux-v3-0-08d26a28e001@cherry.de>
In-Reply-To: <20240611-dev-mule-i2c-mux-v3-0-08d26a28e001@cherry.de>
To: Wolfram Sang <wsa+renesas@sang-engineering.com>, 
 Peter Rosin <peda@axentia.se>, Andi Shyti <andi.shyti@kernel.org>, 
 Rob Herring <robh@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, 
 Farouk Bouabid <farouk.bouabid@cherry.de>, 
 Quentin Schulz <quentin.schulz@cherry.de>, Heiko Stuebner <heiko@sntech.de>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, 
 devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
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Mule emulates an I2C mux (address 0x18). The amc6821 is exposed behind
this bus.

Add the mux node and amc6821 as a default device.

Signed-off-by: Farouk Bouabid <farouk.bouabid@cherry.de>
---
 arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
index 39d65002add1..14f1322c162f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
@@ -32,6 +32,7 @@ button-bios-disable {
 
 	aliases {
 		ethernet0 = &gmac0;
+		i2c10 = &i2c10;
 		mmc0 = &sdhci;
 		mmc1 = &sdmmc;
 		rtc0 = &rtc_twi;
@@ -249,9 +250,23 @@ &i2c0 {
 	pinctrl-0 = <&i2c0m2_xfer>;
 	status = "okay";
 
-	fan@18 {
-		compatible = "ti,amc6821";
+	i2c-mux@18 {
+		compatible = "tsd,mule-i2c-mux";
 		reg = <0x18>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c10: i2c@0 {
+			reg = <0x0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fan: fan@18 {
+				compatible = "ti,amc6821";
+				reg = <0x18>;
+				#cooling-cells = <2>;
+			};
+		};
 	};
 
 	vdd_npu_s0: regulator@42 {

-- 
2.34.1