[PATCH v3 4/7] arm64: dts: imx943: Add thermal support
From: Peng Fan (OSS) <hidden>
Date: 2026-03-24 05:42:57
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
From: Joy Zou <redacted> Add A55 and ANA thermal including cooling-maps. Signed-off-by: Joy Zou <redacted> Signed-off-by: Peng Fan <peng.fan@nxp.com> --- arch/arm64/boot/dts/freescale/imx94.dtsi | 1 + arch/arm64/boot/dts/freescale/imx943.dtsi | 62 +++++++++++++++++++++++++++++++ 2 files changed, 63 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx94.dtsi b/arch/arm64/boot/dts/freescale/imx94.dtsi
index d779866d5bb2d425a496065d6f7f3f7532f15298..45dc1905549274bae118156f425ee5daa9ae10bb 100644
--- a/arch/arm64/boot/dts/freescale/imx94.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx94.dtsi@@ -7,6 +7,7 @@ #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/input/input.h> #include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/thermal/thermal.h> #include "imx94-clock.h" #include "imx94-pinfunc.h"
diff --git a/arch/arm64/boot/dts/freescale/imx943.dtsi b/arch/arm64/boot/dts/freescale/imx943.dtsi
index 45b8da758e87771c0775eb799ce2da3aac37c060..5091a5c3d5815d88b7ae94b7e1776de7403b9c00 100644
--- a/arch/arm64/boot/dts/freescale/imx943.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx943.dtsi@@ -145,4 +145,66 @@ l3_cache: l3-cache { cache-unified; }; }; + + thermal_zones: thermal-zones { + a55-thermal { + polling-delay-passive = <250>; + polling-delay = <2000>; + thermal-sensors = <&scmi_sensor 1>; + trips { + cpu_alert0: trip0 { + temperature = <105000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_crit0: trip1 { + temperature = <125000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + + ana-thermal { + polling-delay-passive = <250>; + polling-delay = <2000>; + thermal-sensors = <&scmi_sensor 0>; + trips { + ana_alert: trip0 { + temperature = <105000>; + hysteresis = <2000>; + type = "passive"; + }; + + ana_crit0: trip1 { + temperature = <125000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&ana_alert>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; };
--
2.37.1