[PATCH v3 11/13] arm64: dts: apple: t8103, t8112, t60xx: add hwmon SMC subdevice

James Calligeros jcalligeros99 at gmail.com
Tue Oct 7 04:16:52 PDT 2025


Apple's System Management Controller integrates numerous sensors
that can be exposed via hwmon. Add the subdevice and compatible
in preparation for the sensors that need to be described
for each device.

Signed-off-by: James Calligeros <jcalligeros99 at gmail.com>
---
 .../arm64/boot/dts/apple/t600x-die0.dtsi | 4 ++++
 .../arm64/boot/dts/apple/t602x-die0.dtsi | 4 ++++
 arch/arm64/boot/dts/apple/t8103.dtsi     | 4 ++++
 arch/arm64/boot/dts/apple/t8112.dtsi     | 4 ++++
 4 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
index f715b19efd16..e6647c1a9173 100644
--- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
@@ -37,6 +37,10 @@ smc_gpio: gpio {
 			#gpio-cells = <2>;
 		};
 
+		smc_hwmon: hwmon {
+			compatible = "apple,smc-hwmon";
+		};
+
 		smc_reboot: reboot {
 			compatible = "apple,smc-reboot";
 			nvmem-cells = <&shutdown_flag>, <&boot_stage>,
diff --git a/arch/arm64/boot/dts/apple/t602x-die0.dtsi b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
index 8622ddea7b44..680c103c1c0f 100644
--- a/arch/arm64/boot/dts/apple/t602x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
@@ -114,6 +114,10 @@ smc_gpio: gpio {
 			#gpio-cells = <2>;
 		};
 
+		smc_hwmon: hwmon {
+			compatible = "apple,smc-hwmon";
+		};
+
 		smc_reboot: reboot {
 			compatible = "apple,smc-reboot";
 			nvmem-cells = <&shutdown_flag>, <&boot_stage>,
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 59f2678639cf..78eb931d6fb7 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -909,6 +909,10 @@ smc_gpio: gpio {
 				#gpio-cells = <2>;
 			};
 
+			smc_hwmon: hwmon {
+				compatible = "apple,smc-hwmon";
+			};
+
 			smc_reboot: reboot {
 				compatible = "apple,smc-reboot";
 				nvmem-cells = <&shutdown_flag>, <&boot_stage>,
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi
index 6bc3f58b06f7..5a8fa6daa00a 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -912,6 +912,10 @@ smc_gpio: gpio {
 				#gpio-cells = <2>;
 			};
 
+			smc_hwmon: hwmon {
+				compatible = "apple,smc-hwmon";
+			};
+
 			smc_reboot: reboot {
 				compatible = "apple,smc-reboot";
 				nvmem-cells = <&shutdown_flag>, <&boot_stage>,

-- 
2.51.0




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