[PATCH v4 3/7] arm64: dts: rockchip: Add thermal nodes to RK3576
From: Nicolas Frattaroli
Date: Mon Mar 17 2025 - 09:51:24 EST
Add the TSADC node to the RK3576. Additionally, add everything the TSADC
needs to function, i.e. thermal zones, their trip points and maps, as
well as adjust the CPU cooling-cells property.
The polling-delay properties are set to 0 as we do have interrupts for
this TSADC on this particular SoC.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3576.dtsi | 164 ++++++++++++++++++++++++++++++-
1 file changed, 162 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3576.dtsi b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
index ebb5fc8bb8b1363127b9d3782801c4a79b678a92..250dca23ff4fc1ab3bd47366829c5dd1738057fe 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
@@ -11,6 +11,7 @@
#include <dt-bindings/power/rockchip,rk3576-power.h>
#include <dt-bindings/reset/rockchip,rk3576-cru.h>
#include <dt-bindings/soc/rockchip,boot-mode.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
compatible = "rockchip,rk3576";
@@ -113,9 +114,9 @@ cpu_l0: cpu@0 {
capacity-dmips-mhz = <485>;
clocks = <&scmi_clk SCMI_ARMCLK_L>;
operating-points-v2 = <&cluster0_opp_table>;
- #cooling-cells = <2>;
dynamic-power-coefficient = <120>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_l1: cpu@1 {
@@ -127,6 +128,7 @@ cpu_l1: cpu@1 {
clocks = <&scmi_clk SCMI_ARMCLK_L>;
operating-points-v2 = <&cluster0_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_l2: cpu@2 {
@@ -138,6 +140,7 @@ cpu_l2: cpu@2 {
clocks = <&scmi_clk SCMI_ARMCLK_L>;
operating-points-v2 = <&cluster0_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_l3: cpu@3 {
@@ -149,6 +152,7 @@ cpu_l3: cpu@3 {
clocks = <&scmi_clk SCMI_ARMCLK_L>;
operating-points-v2 = <&cluster0_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_b0: cpu@100 {
@@ -159,9 +163,9 @@ cpu_b0: cpu@100 {
capacity-dmips-mhz = <1024>;
clocks = <&scmi_clk SCMI_ARMCLK_B>;
operating-points-v2 = <&cluster1_opp_table>;
- #cooling-cells = <2>;
dynamic-power-coefficient = <320>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_b1: cpu@101 {
@@ -173,6 +177,7 @@ cpu_b1: cpu@101 {
clocks = <&scmi_clk SCMI_ARMCLK_B>;
operating-points-v2 = <&cluster1_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_b2: cpu@102 {
@@ -184,6 +189,7 @@ cpu_b2: cpu@102 {
clocks = <&scmi_clk SCMI_ARMCLK_B>;
operating-points-v2 = <&cluster1_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
cpu_b3: cpu@103 {
@@ -195,6 +201,7 @@ cpu_b3: cpu@103 {
clocks = <&scmi_clk SCMI_ARMCLK_B>;
operating-points-v2 = <&cluster1_opp_table>;
cpu-idle-states = <&CPU_SLEEP>;
+ #cooling-cells = <2>;
};
idle-states {
@@ -436,6 +443,143 @@ psci {
method = "smc";
};
+ thermal_zones: thermal-zones {
+ /* sensor near the center of the SoC */
+ package_thermal: package-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 0>;
+
+ trips {
+ package_crit: package-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+
+ /* sensor for cluster1 (big Cortex-A72 cores) */
+ bigcore_thermal: bigcore-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 1>;
+
+ trips {
+ bigcore_alert: bigcore-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ bigcore_crit: bigcore-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&bigcore_alert>;
+ cooling-device =
+ <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_b2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_b3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ /* sensor for cluster0 (little Cortex-A53 cores) */
+ littlecore_thermal: littlecore-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 2>;
+
+ trips {
+ littlecore_alert: littlecore-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ littlecore_crit: littlecore-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&littlecore_alert>;
+ cooling-device =
+ <&cpu_l0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_l1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_l2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu_l3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ gpu_thermal: gpu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 3>;
+
+ trips {
+ gpu_alert: gpu-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ gpu_crit: gpu-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&gpu_alert>;
+ cooling-device =
+ <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ npu_thermal: npu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 4>;
+
+ trips {
+ npu_crit: npu-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+
+ ddr_thermal: ddr-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&tsadc 5>;
+
+ trips {
+ ddr_crit: ddr-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
@@ -1853,6 +1997,22 @@ saradc: adc@2ae00000 {
status = "disabled";
};
+ tsadc: tsadc@2ae70000 {
+ compatible = "rockchip,rk3576-tsadc";
+ reg = <0x0 0x2ae70000 0x0 0x400>;
+ interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru CLK_TSADC>, <&cru PCLK_TSADC>;
+ clock-names = "tsadc", "apb_pclk";
+ assigned-clocks = <&cru CLK_TSADC>;
+ assigned-clock-rates = <2000000>;
+ resets = <&cru SRST_P_TSADC>, <&cru SRST_TSADC>;
+ reset-names = "tsadc-apb", "tsadc";
+ #thermal-sensor-cells = <1>;
+ rockchip,hw-tshut-temp = <120000>;
+ rockchip,hw-tshut-mode = <0>; /* tshut mode 0:CRU 1:GPIO */
+ rockchip,hw-tshut-polarity = <0>; /* tshut polarity 0:LOW 1:HIGH */
+ };
+
i2c9: i2c@2ae80000 {
compatible = "rockchip,rk3576-i2c", "rockchip,rk3399-i2c";
reg = <0x0 0x2ae80000 0x0 0x1000>;
--
2.48.1