arm64: dts: apple: add initial hwmon keys to SMC node

Add some preliminary known SMC hardware monitoring sensors to the Apple device trees Co-developed-by: Janne Grunau <[email protected]> Signed-off-by: Janne Grunau <[email protected]> Signed-off-by: James Calligeros <[email protected]>
AsahiLinux · Jun 15, 2024 · 31c9fad · 31c9fad
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diff --git a/arch/arm64/boot/dts/apple/hwmon-common.dtsi b/arch/arm64/boot/dts/apple/hwmon-common.dtsi
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * hwmon sensors expected on all systems
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+&smc {
+	hwmon {
+		apple,power-keys {
+			power-PSTR {
+				apple,key-id = "PSTR";
+				label = "Total System Power";
+			};
+			power-PDTR {
+				apple,key-id = "PDTR";
+				label = "AC Input Power";
+			};
+			power-PMVR {
+				apple,key-id = "PMVR";
+				label = "3.8 V Rail Power";
+			};
+			power-PC0C {
+				apple,key-id = "PC0C";
+				label = "CPU Core Power";
+			};
+			power-PCTR {
+				apple,key-id = "PCTR";
+				label = "CPU Complex Power";
+			};
+			power-PG0R {
+				apple,key-id = "PG0R";
+				label = "GPU Complex Power";
+			};
+		};
+		apple,temp-keys {
+			temp-TH0x {
+				apple,key-id = "TH0x";
+				label = "NAND Flash Temperature";
+			};
+		};
+		apple,volt-keys {
+			volt-VD0R {
+				apple,key-id = "VD0R";
+				label = "AC Input Voltage";
+			};
+			volt-VP0R {
+				apple,key-id = "VP0R";
+				label = "12 V Rail Voltage";
+			};
+			volt-VR3R {
+				apple,key-id = "VR3R";
+				label = "3.3 V Rail Voltage";
+			};
+			volt-VV1S {
+				apple,key-id = "VV1S";
+				label = "5 V Rail Voltage";
+			};
+			volt-VM0R {
+				apple,key-id = "VM0R";
+				label = "DRAM Voltage";
+			};
+		};
+		apple,current-keys {
+			current-IC0R {
+				apple,key-id = "IC0R";
+				label = "CPU VRM High Side Current";
+			};
+			current-IG0R {
+				apple,key-id = "IG0R";
+				label = "GPU VRM High Side Current";
+			};
+			current-ID0R {
+				apple,key-id = "ID0R";
+				label = "AC Input Current";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/hwmon-laptop.dtsi b/arch/arm64/boot/dts/apple/hwmon-laptop.dtsi
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * hwmon sensors expected on all laptops
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+&smc {
+	hwmon {
+		apple,power-keys {
+			power-PHPC {
+				apple,key-id = "PHPC";
+				label = "Heatpipe Power";
+			};
+		};
+
+		apple,temp-keys {
+			temp-TB0T {
+				apple,key-id = "TB0T";
+				label = "Battery Hotspot";
+			};
+			temp-TCHP {
+				apple,key-id = "TCHP";
+				label = "Charge Regulator Temp";
+			};
+			temp-TW0P {
+				apple,key-id = "TW0P";
+				label = "WiFi/BT Module Temp";
+			};
+		};
+		apple,volt-keys {
+			volt-SBAV {
+				apple,key-id = "SBAV";
+				label = "Battery Voltage";
+			};
+			volt-VD0R {
+				apple,key-id = "VD0R";
+				label = "Charger Input Voltage";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/hwmon-mini.dtsi b/arch/arm64/boot/dts/apple/hwmon-mini.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * hwmon sensors common to the Mac mini desktop
+ * models, but not the Studio or Pro.
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+&smc {
+	hwmon {
+		apple,temp-keys {
+			temp-TW0P {
+				apple,key-id = "TW0P";
+				label = "WiFi/BT Module Temp";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/hwmon-t600x.dtsi b/arch/arm64/boot/dts/apple/hwmon-t600x.dtsi
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * t8103 specific hwmon sensors
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+ #include "hwmon-common.dtsi"
+
+&smc {
+	hwmon {
+		apple,temp-keys {
+			temp-TSCD {
+				apple,key-id = "TSCD";
+				label = "SoC Die Temp";
+			};
+			temp-Tp09 {
+				apple,key-id = "Tp09";
+				label = "Efficiency Core 1 Temp";
+			};
+			temp-Tp0T {
+				apple,key-id = "Tp0T";
+				label = "Efficiency Core 2 Temp";
+			};
+			temp-Tp01 {
+				apple,key-id = "Tp01";
+				label = "Performance Core 1 Temp";
+			};
+			temp-Tp05 {
+				apple,key-id = "Tp05";
+				label = "Performance Core 2 Temp";
+			};
+			temp-Tp0D {
+				apple,key-id = "Tp0D";
+				label = "Performance Core 3 Temp";
+			};
+			temp-Tp0H {
+				apple,key-id = "Tp0H";
+				label = "Performance Core 4 Temp";
+			};
+			temp-Tp0L {
+				apple,key-id = "Tp0L";
+				label = "Performance Core 5 Temp";
+			};
+			temp-Tp0P {
+				apple,key-id = "Tp0P";
+				label = "Performance Core 6 Temp";
+			};
+			temp-Tp0X {
+				apple,key-id = "Tp0X";
+				label = "Performance Core 7 Temp";
+			};
+			temp-Tp0b {
+				apple,key-id = "Tp0b";
+				label = "Performance Core 8 Temp";
+			};
+			temp-Tg05 {
+				apple,key-id = "Tg05";
+				label = "GPU 1 Temp";
+			};
+			temp-Tg0D {
+				apple,key-id = "Tg0D";
+				label = "GPU 2 Temp";
+			};
+			temp-Tg0L {
+				apple,key-id = "Tg0L";
+				label = "GPU 3 Temp";
+			};
+			temp-Tg0T {
+				apple,key-id = "Tg0T";
+				label = "GPU 4 Temp";
+			};
+			temp-Tm02 {
+				apple,key-id = "Tm02";
+				label = "DRAM 1 Temp";
+			};
+			temp-Tm06 {
+				apple,key-id = "Tm06";
+				label = "DRAM 2 Temp";
+			};
+			temp-Tm08 {
+				apple,key-id = "Tm08";
+				label = "DRAM 3 Temp";
+			};
+			temp-Tm09 {
+				apple,key-id = "Tm09";
+				label = "DRAM 4 Temp";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/hwmon-t602x.dtsi b/arch/arm64/boot/dts/apple/hwmon-t602x.dtsi
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * t602x specific hwmon sensors
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+ #include "hwmon-common.dtsi"
+
+&smc {
+	hwmon {
+		apple,temp-keys {
+			temp-Tp1h {
+				apple,key-id = "Tp1h";
+				label = "Efficiency Core 1 Temp";
+			};
+			temp-Tp1t {
+				apple,key-id = "Tp1t";
+				label = "Efficiency Core 2 Temp";
+			};
+			temp-Tp1p {
+				apple,key-id = "Tp1p";
+				label = "Efficiency Core 3 Temp";
+			};
+			temp-Tp1l {
+				apple,key-id = "Tp1l";
+				label = "Efficiency Core 4 Temp";
+			};
+			temp-Tp01 {
+				apple,key-id = "Tp01";
+				label = "Performance Core 1 Temp";
+			};
+			temp-Tp05 {
+				apple,key-id = "Tp05";
+				label = "Performance Core 2 Temp";
+			};
+			temp-Tp09 {
+				apple,key-id = "Tp09";
+				label = "Performance Core 3 Temp";
+			};
+			temp-Tp0D {
+				apple,key-id = "Tp0D";
+				label = "Performance Core 4 Temp";
+			};
+			temp-Tp0X {
+				apple,key-id = "Tp0X";
+				label = "Performance Core 5 Temp";
+			};
+			temp-Tp0b {
+				apple,key-id = "Tp0b";
+				label = "Performance Core 6 Temp";
+			};
+			temp-Tp0f {
+				apple,key-id = "Tp0f";
+				label = "Performance Core 7 Temp";
+			};
+			temp-Tp0j {
+				apple,key-id = "Tp0j";
+				label = "Performance Core 8 Temp";
+			};
+			temp-Tg0f {
+				apple,key-id = "Tg0f";
+				label = "GPU 1 Temp";
+			};
+			temp-Tg0j {
+				apple,key-id = "Tg0j";
+				label = "GPU 2 Temp";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/hwmon-t8103.dtsi b/arch/arm64/boot/dts/apple/hwmon-t8103.dtsi
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * t8103 specific hwmon sensors
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+ #include "hwmon-common.dtsi"
+
+&smc {
+	hwmon {
+		apple,temp-keys {
+			temp-TSCD {
+				apple,key-id = "TSCD";
+				label = "SoC Die Temp";
+			};
+			temp-Tp09 {
+				apple,key-id = "Tp09";
+				label = "Efficiency Core 1 Temp";
+			};
+			temp-Tp0T {
+				apple,key-id = "Tp0T";
+				label = "Efficiency Core 2 Temp";
+			};
+			temp-Tp01 {
+				apple,key-id = "Tp01";
+				label = "Performance Core 1 Temp";
+			};
+			temp-Tp05 {
+				apple,key-id = "Tp05";
+				label = "Performance Core 2 Temp";
+			};
+			temp-Tp0D {
+				apple,key-id = "Tp0D";
+				label = "Performance Core 3 Temp";
+			};
+			temp-Tp0H {
+				apple,key-id = "Tp0H";
+				label = "Performance Core 4 Temp";
+			};
+			temp-Tp0L {
+				apple,key-id = "Tp0L";
+				label = "Performance Core 5 Temp";
+			};
+			temp-Tp0P {
+				apple,key-id = "Tp0P";
+				label = "Performance Core 6 Temp";
+			};
+			temp-Tp0X {
+				apple,key-id = "Tp0X";
+				label = "Performance Core 7 Temp";
+			};
+			temp-Tp0b {
+				apple,key-id = "Tp0b";
+				label = "Performance Core 8 Temp";
+			};
+			temp-Tg05 {
+				apple,key-id = "Tg05";
+				label = "GPU 1 Temp";
+			};
+			temp-Tg0D {
+				apple,key-id = "Tg0D";
+				label = "GPU 2 Temp";
+			};
+			temp-Tg0L {
+				apple,key-id = "Tg0L";
+				label = "GPU 3 Temp";
+			};
+			temp-Tg0T {
+				apple,key-id = "Tg0T";
+				label = "GPU 4 Temp";
+			};
+			temp-Tm02 {
+				apple,key-id = "Tm02";
+				label = "DRAM 1 Temp";
+			};
+			temp-Tm06 {
+				apple,key-id = "Tm06";
+				label = "DRAM 2 Temp";
+			};
+			temp-Tm08 {
+				apple,key-id = "Tm08";
+				label = "DRAM 3 Temp";
+			};
+			temp-Tm09 {
+				apple,key-id = "Tm09";
+				label = "DRAM 4 Temp";
+			};
+		};
+	};
+};