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

[Peter Robinson <pbrobinson@gmail.com>]

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@gmail.com>
Cc: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Dave Stevenson <dave.stevenson@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@7c706400 {
 			ddc = <&ddc1>;
 			status = "disabled";
 		};
+
+		avs_monitor: avs-monitor@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@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