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Date: Wed, 12 Jul 2023 17:17:53 -0400
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Marcel Ziswiler <marcel.ziswiler@...adex.com>,
Pierre Gondois <pierre.gondois@....com>,
Li Yang <leoyang.li@....com>, Zhou Peng <eagle.zhou@....com>,
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX
/ MXC ARM ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 2/3] arm64: dts: imx8qm: add thermal zone and cooling map
Add thermal zone and cooling map for cpufreq.
Signed-off-by: Frank Li <Frank.Li@....com>
---
arch/arm64/boot/dts/freescale/imx8qm.dtsi | 135 ++++++++++++++++++++++
1 file changed, 135 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
index 24508b84804b..30520186de83 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
@@ -9,6 +9,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/pads-imx8qm.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
interrupt-parent = <&gic>;
@@ -72,6 +73,7 @@ A53_0: cpu@0 {
d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
+ #cooling-cells = <2>;
};
A53_1: cpu@1 {
@@ -88,6 +90,7 @@ A53_1: cpu@1 {
d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
+ #cooling-cells = <2>;
};
A53_2: cpu@2 {
@@ -104,6 +107,7 @@ A53_2: cpu@2 {
d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
+ #cooling-cells = <2>;
};
A53_3: cpu@3 {
@@ -120,6 +124,7 @@ A53_3: cpu@3 {
d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
+ #cooling-cells = <2>;
};
A72_0: cpu@100 {
@@ -136,6 +141,7 @@ A72_0: cpu@100 {
d-cache-sets = <256>;
next-level-cache = <&A72_L2>;
operating-points-v2 = <&a72_opp_table>;
+ #cooling-cells = <2>;
};
A72_1: cpu@101 {
@@ -146,6 +152,7 @@ A72_1: cpu@101 {
enable-method = "psci";
next-level-cache = <&A72_L2>;
operating-points-v2 = <&a72_opp_table>;
+ #cooling-cells = <2>;
};
A53_L2: l2-cache0 {
@@ -284,6 +291,134 @@ iomuxc: pinctrl {
rtc: rtc {
compatible = "fsl,imx8qxp-sc-rtc";
};
+
+ tsens: thermal-sensor {
+ compatible = "fsl,imx-sc-thermal";
+ #thermal-sensor-cells = <1>;
+ };
+ };
+
+ thermal-zones {
+
+ cpu-thermal0 {
+ polling-delay-passive = <250>;
+ polling-delay = <2000>;
+ thermal-sensors = <&tsens IMX_SC_R_A53>;
+
+ trips {
+ cpu_alert0: trip0 {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit0: trip1 {
+ temperature = <127000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device =
+ <&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ cpu-thermal1 {
+ polling-delay-passive = <250>;
+ polling-delay = <2000>;
+ thermal-sensors = <&tsens IMX_SC_R_A72>;
+
+ trips {
+ cpu_alert1: trip0 {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit1: trip1 {
+ temperature = <127000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert1>;
+ cooling-device =
+ <&A72_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&A72_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ gpu-thermal0 {
+ polling-delay-passive = <250>;
+ polling-delay = <2000>;
+ thermal-sensors = <&tsens IMX_SC_R_GPU_0_PID0>;
+
+ trips {
+ gpu_alert0: trip0 {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ gpu_crit0: trip1 {
+ temperature = <127000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
+
+ gpu-thermal1 {
+ polling-delay-passive = <250>;
+ polling-delay = <2000>;
+ thermal-sensors = <&tsens IMX_SC_R_GPU_1_PID0>;
+
+ trips {
+ gpu_alert1: trip0 {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ gpu_crit1: trip1 {
+ temperature = <127000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
+
+ drc-thermal0 {
+ polling-delay-passive = <250>;
+ polling-delay = <2000>;
+ thermal-sensors = <&tsens IMX_SC_R_DRC_0>;
+
+ trips {
+ drc_alert0: trip0 {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ drc_crit0: trip1 {
+ temperature = <127000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
};
/* sorted in register address */
--
2.34.1
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