Merge tag 'zynqmp-dt-for-6.13' of https://github.com/Xilinx/linux-xlnx into soc/dt

arm64: ZynqMP DT changes for 6.13

- Enable AMS for all boards including HWMON
- Add thermal zones

* tag 'zynqmp-dt-for-6.13' of https://github.com/Xilinx/linux-xlnx:
  arm64: zynqmp: Add thermal zones
  arm64: zynqmp: Expose AMS to userspace as HWMON
  arm64: zynqmp: Enable AMS for all boards

Link: https://lore.kernel.org/r/CAHTX3d+x1WrXhsp6+PQbo-B3T9q21tqE1RkhVsh0r7my3vH37g@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

6 files changed, 100 insertions, 35 deletions

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
index 86e6c4990560..bfa7ea6b9224 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
@@ -90,20 +90,6 @@
 		};
 	};
 
-	ams {
-		compatible = "iio-hwmon";
-		io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
-			<&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
-			<&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
-			<&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
-			<&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
-			<&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
-			<&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
-			<&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
-			<&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
-			<&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
-	};
-
 	pwm-fan {
 		compatible = "pwm-fan";
 		status = "okay";
@@ -366,10 +352,6 @@
 			  "", "", "", ""; /* 170 - 173 */
 };
 
-&xilinx_ams {
-	status = "okay";
-};
-
 &ams_ps {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
index c5945067cd57..62c2503a502a 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
@@ -590,10 +590,6 @@
 	status = "okay";
 };
 
-&xilinx_ams {
-	status = "okay";
-};
-
 &ams_ps {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
index d2175f3dd099..7e26489a1539 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
@@ -1028,10 +1028,6 @@
 	status = "okay";
 };
 
-&xilinx_ams {
-	status = "okay";
-};
-
 &ams_ps {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
index b1eca1bb6a63..eb2090673ec1 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
@@ -511,10 +511,6 @@
 	status = "okay";
 };
 
-&xilinx_ams {
-	status = "okay";
-};
-
 &ams_ps {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
index ddc74d963a05..4694d0a841f1 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
@@ -523,10 +523,6 @@
 	status = "okay";
 };
 
-&xilinx_ams {
-	status = "okay";
-};
-
 &ams_ps {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index b1b31dcf6291..467f084c6469 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -18,6 +18,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/power/xlnx-zynqmp-power.h>
 #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	compatible = "xlnx,zynqmp";
@@ -36,6 +37,7 @@
 		#size-cells = <0>;
 
 		cpu0: cpu@0 {
+			#cooling-cells = <2>;
 			compatible = "arm,cortex-a53";
 			device_type = "cpu";
 			enable-method = "psci";
@@ -46,6 +48,7 @@
 		};
 
 		cpu1: cpu@1 {
+			#cooling-cells = <2>;
 			compatible = "arm,cortex-a53";
 			device_type = "cpu";
 			enable-method = "psci";
@@ -56,6 +59,7 @@
 		};
 
 		cpu2: cpu@2 {
+			#cooling-cells = <2>;
 			compatible = "arm,cortex-a53";
 			device_type = "cpu";
 			enable-method = "psci";
@@ -66,6 +70,7 @@
 		};
 
 		cpu3: cpu@3 {
+			#cooling-cells = <2>;
 			compatible = "arm,cortex-a53";
 			device_type = "cpu";
 			enable-method = "psci";
@@ -392,6 +397,101 @@
 		};
 	};
 
+	ams {
+		compatible = "iio-hwmon";
+		io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
+			<&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
+			<&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
+			<&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
+			<&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
+			<&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
+			<&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
+			<&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
+			<&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
+			<&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
+	};
+
+
+	tsens_apu: thermal-sensor-apu {
+		compatible = "generic-adc-thermal";
+		#thermal-sensor-cells = <0>;
+		io-channels = <&xilinx_ams 7>;
+		io-channel-names = "sensor-channel";
+	};
+
+	tsens_rpu: thermal-sensor-rpu {
+		compatible = "generic-adc-thermal";
+		#thermal-sensor-cells = <0>;
+		io-channels = <&xilinx_ams 8>;
+		io-channel-names = "sensor-channel";
+	};
+
+	tsens_pl: thermal-sensor-pl {
+		compatible = "generic-adc-thermal";
+		#thermal-sensor-cells = <0>;
+		io-channels = <&xilinx_ams 20>;
+		io-channel-names = "sensor-channel";
+	};
+
+	thermal-zones {
+		apu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <5000>;
+			thermal-sensors = <&tsens_apu>;
+
+			trips {
+				apu_passive: passive {
+					temperature = <93000>;
+					hysteresis = <3500>;
+					type = "passive";
+				};
+
+				apu_critical: critical {
+					temperature = <96500>;
+					hysteresis = <3500>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map {
+					trip = <&apu_passive>;
+					cooling-device =
+						<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						<&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+
+		rpu-thermal {
+			polling-delay = <10000>;
+			thermal-sensors = <&tsens_rpu>;
+
+			trips {
+				critical {
+					temperature = <96500>;
+					hysteresis = <3500>;
+					type = "critical";
+				};
+			};
+		};
+
+		pl-thermal {
+			polling-delay = <10000>;
+			thermal-sensors = <&tsens_pl>;
+
+			trips {
+				critical {
+					temperature = <96500>;
+					hysteresis = <3500>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	amba: axi {
 		compatible = "simple-bus";
 		bootph-all;
@@ -1157,7 +1257,6 @@
 
 		xilinx_ams: ams@ffa50000 {
 			compatible = "xlnx,zynqmp-ams";
-			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
 			reg = <0x0 0xffa50000 0x0 0x800>;