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Message-Id: <20240426-dev-mule-i2c-mux-v1-5-045a482f6ffb@theobroma-systems.com>
Date: Fri, 26 Apr 2024 18:49:36 +0200
From: Farouk Bouabid <farouk.bouabid@...obroma-systems.com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>,
Peter Rosin <peda@...ntia.se>, Andi Shyti <andi.shyti@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Quentin Schulz <quentin.schulz@...obroma-systems.com>,
Heiko Stuebner <heiko@...ech.de>
Cc: linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org,
Farouk Bouabid <farouk.bouabid@...obroma-systems.com>
Subject: [PATCH 5/7] arm64: dts: rockchip: add mule i2c mux (0x18) on
rk3588-tiger
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@...obroma-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@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>;
+ };
+ };
};
rtc_twi: rtc@6f {
--
2.34.1
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