@@ -24,6 +24,10 @@
};
};
+&cpu_thermal {
+ coefficients = <(-538) 407000>;
+};
+
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2835-thermal";
@@ -77,6 +77,10 @@
interrupts = <8>;
};
+&cpu_thermal {
+ coefficients = <(-538) 407000>;
+};
+
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2836-thermal";
@@ -19,6 +19,26 @@
bootargs = "earlyprintk console=ttyAMA0";
};
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+
+ thermal-sensors = <&thermal>;
+
+ trips {
+ cpu-crit {
+ temperature = <80000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ };
+ };
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <1>;
@@ -394,6 +414,7 @@
compatible = "brcm,bcm2835-thermal";
reg = <0x7e212000 0x8>;
clocks = <&clocks BCM2835_CLOCK_TSENS>;
+ #thermal-sensor-cells = <0>;
status = "disabled";
};
As suggested by Eduardo Valentin this adds the thermal zone for the bcm2835 SoC with its single thermal sensor. We start with the criticial trip point and leave the cooling devices empty since we don't have any at the moment. Since the coefficients could vary depending on the SoC we need to define them separate. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> --- arch/arm/boot/dts/bcm2835.dtsi | 4 ++++ arch/arm/boot/dts/bcm2836.dtsi | 4 ++++ arch/arm/boot/dts/bcm283x.dtsi | 21 +++++++++++++++++++++ 3 files changed, 29 insertions(+)