[PATCH 16/18] ARM: dts: qcom: apq8064: enable passive CPU cooling

Dmitry Baryshkov
2023-06-12T05:40:17Z

Wire up CPUs and thermal trip points to save the SoC from overheating by
lowering the CPU frequency.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
arch/arm/boot/dts/qcom-apq8064.dtsi | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index f35853b59544..82b381b66cfb 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -10,6 +10,7 @@
#include <dt-bindings/soc/qcom,gsbi.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
#address-cells = <1>;
#size-cells = <1>;
@@ -1279,6 +1280,13 @@ cpu_crit0: trip1 {
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

cpu1-thermal {
@@ -1300,6 +1308,13 @@ cpu_crit1: trip1 {
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert1>;
+ cooling-device = <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

cpu2-thermal {
@@ -1321,6 +1336,13 @@ cpu_crit2: trip1 {
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert2>;
+ cooling-device = <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

cpu3-thermal {
@@ -1342,6 +1364,13 @@ cpu_crit3: trip1 {
type = "critical";
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert3>;
+ cooling-device = <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};
};

--
2.39.2