ARM: dts: rockchip: add thermal nodes for RV1108 SoC

Add thermal zone and dynamic CPU power coefficients for RV1108

Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/rv1108.dtsi b/arch/arm/boot/dts/rv1108.dtsi
index 658a458a5b38..76ea24636feb 100644
--- a/arch/arm/boot/dts/rv1108.dtsi
+++ b/arch/arm/boot/dts/rv1108.dtsi
@@ -43,6 +43,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/rv1108-cru.h>
 #include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/thermal/thermal.h>
 / {
         #address-cells = <1>;
         #size-cells = <1>;
@@ -70,6 +71,8 @@
                         compatible = "arm,cortex-a7";
                         reg = <0xf00>;
                         clocks = <&cru ARMCLK>;
+                        #cooling-cells = <2>; /* min followed by max */
+                        dynamic-power-coefficient = <75>;
                         operating-points-v2 = <&cpu_opp_table>;
                 };
         };
@@ -329,6 +332,41 @@
                 status = "disabled";
         };
 
+        thermal-zones {
+                soc_thermal: soc-thermal {
+                        polling-delay-passive = <20>;
+                        polling-delay = <1000>;
+                        sustainable-power = <50>;
+                        thermal-sensors = <&tsadc 0>;
+
+                        trips {
+                                threshold: trip-point0 {
+                                        temperature = <70000>;
+                                        hysteresis = <2000>;
+                                        type = "passive";
+                                };
+                                target: trip-point1 {
+                                        temperature = <85000>;
+                                        hysteresis = <2000>;
+                                        type = "passive";
+                                };
+                                soc_crit: soc-crit {
+                                        temperature = <95000>;
+                                        hysteresis = <2000>;
+                                        type = "critical";
+                                };
+                        };
+
+                        cooling-maps {
+                                map0 {
+                                        trip = <&target>;
+                                        cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+                                        contribution = <4096>;
+                                };
+                        };
+                };
+        };
+
         tsadc: tsadc@10370000 {
                 compatible = "rockchip,rv1108-tsadc";
                 reg = <0x10370000 0x100>;