[PATCH 2/3] arm64: dts: broadcom: bcm2712: Add thermal monitor

[Peter Robinson]

The thermal sensors on the bcm2712 (rpi5) are the same
infrastructure as on the bcm2711 (rpi4) so add those
details so we can get thermal monitoring on the device
as it can get quite hot.

Signed-off-by: Peter Robinson <pbrobinson at gmail.com>
Cc: Florian Fainelli <florian.fainelli at broadcom.com>
Cc: Dave Stevenson <dave.stevenson at raspberrypi.com
---
 arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 32 +++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
index ae1fc9d728c00..c73ed9e066662 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
@@ -508,6 +508,18 @@ hdmi1: hdmi at 7c706400 {
 			ddc = <&ddc1>;
 			status = "disabled";
 		};
+
+		avs_monitor: avs-monitor at 7d542000 {
+			compatible = "brcm,bcm2711-avs-monitor",
+						"syscon", "simple-mfd";
+			reg = <0x7d542000 0xf00>;
+			status = "okay";
+
+			thermal: thermal {
+				compatible = "brcm,bcm2711-thermal";
+				#thermal-sensor-cells = <0>;
+			};
+		};
 	};
 
 	axi: axi {
@@ -724,4 +736,24 @@ hvs: hvs at 107c580000 {
 		interrupt-names = "ch0-eof", "ch1-eof", "ch2-eof";
 		status = "disabled";
 	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <1000>;
+			coefficients = <(-550) 450000>;
+			thermal-sensors = <&thermal>;
+
+			thermal_trips: trips {
+				cpu_crit: cpu-crit {
+					temperature	= <110000>;
+					hysteresis	= <0>;
+					type		= "critical";
+				};
+			};
+
+			cooling_maps: cooling-maps {
+			};
+		};
+	};
 };
-- 
2.55.0