Thread (16 messages) 16 messages, 3 authors, 2023-07-30
STALE1091d REVIEWED: 1 (1M)
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 03/10] arm64: dts: imx8ulp: add thermal node

From: Peng Fan (OSS) <hidden>
Date: 2023-06-25 12:38:17
Also in: linux-arm-kernel, lkml
Subsystem: arm/freescale imx / mxc arm architecture, the rest · Maintainers: Frank Li, Sascha Hauer, Linus Torvalds

From: Peng Fan <peng.fan@nxp.com>

Add thermal node. Cooling map is not added, because frequency runtime
changing not supported for now.

Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index ba0edb9a009b..fd30475a561d 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/imx8ulp-power.h>
+#include <dt-bindings/thermal/thermal.h>
 
 #include "imx8ulp-pinfunc.h"
 
@@ -78,6 +79,27 @@ psci {
 		method = "smc";
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <2000>;
+			thermal-sensors = <&scmi_sensor 0>;
+			trips {
+				cpu_alert0: trip0 {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cpu_crit0: trip1 {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, /* Physical Secure */
-- 
2.37.1
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