[PATCH 5/7] arm64: dts: rockchip: add mule i2c mux (0x18) on rk3588-tiger

Farouk Bouabid farouk.bouabid at theobroma-systems.com
Fri Apr 26 09:49:36 PDT 2024


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 at theobroma-systems.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
index 1eb2543a5fde..5ed7d51717bb 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
@@ -12,6 +12,7 @@ / {
 	compatible = "tsd,rk3588-tiger", "rockchip,rk3588";
 
 	aliases {
+		i2c10 = &i2c10;
 		mmc0 = &sdhci;
 		rtc0 = &rtc_twi;
 	};
@@ -210,9 +211,23 @@ &i2c6 {
 	clock-frequency = <400000>;
 	status = "okay";
 
-	fan at 18 {
-		compatible = "ti,amc6821";
+	i2c-mux at 18 {
+		compatible = "tsd,mule-i2c-mux";
 		reg = <0x18>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c10: i2c at 0 {
+			reg = <0x0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fan: fan at 18 {
+				compatible = "ti,amc6821";
+				reg = <0x18>;
+				#cooling-cells = <2>;
+			};
+		};
 	};
 
 	rtc_twi: rtc at 6f {

-- 
2.34.1




More information about the Linux-rockchip mailing list