From: Alexey Charkov <alch...@gmail.com> This includes the necessary device tree data to allow thermal monitoring on RK3588(s) using the on-chip TSADC device, along with trip points for automatic thermal management.
Each of the CPU clusters (one for the little cores and two for the big cores) get a passive cooling trip point at 85C, which will trigger DVFS throttling of the respective cluster upon reaching a high temperature condition. All zones also have a critical trip point at 115C, which will trigger a reset. Signed-off-by: Alexey Charkov <alch...@gmail.com> Link: https://lore.kernel.org/r/20240617-rk-dts-additions-v5-1-c1f5f3267...@gmail.com Signed-off-by: Heiko Stuebner <he...@sntech.de> [ upstream commit: 510cd9e688453166b2bff3999ed21cac97385bb5 ] (cherry picked from commit 33e7079543d5eee1415b937054e8634000d1bde4) Signed-off-by: Heiko Stuebner <he...@sntech.de> Reviewed-by: Kever Yang <kever.y...@rock-chips.com> --- .../src/arm64/rockchip/rk3588-base.dtsi | 153 ++++++++++++++++++ 1 file changed, 153 insertions(+) diff --git a/dts/upstream/src/arm64/rockchip/rk3588-base.dtsi b/dts/upstream/src/arm64/rockchip/rk3588-base.dtsi index 629049f3dc1..78bc9dc9704 100644 --- a/dts/upstream/src/arm64/rockchip/rk3588-base.dtsi +++ b/dts/upstream/src/arm64/rockchip/rk3588-base.dtsi @@ -10,6 +10,7 @@ #include <dt-bindings/reset/rockchip,rk3588-cru.h> #include <dt-bindings/phy/phy.h> #include <dt-bindings/ata/ahci.h> +#include <dt-bindings/thermal/thermal.h> / { compatible = "rockchip,rk3588"; @@ -2368,6 +2369,158 @@ status = "disabled"; }; + 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 between A76 cores 0 and 1 */ + bigcore0_thermal: bigcore0-thermal { + polling-delay-passive = <100>; + polling-delay = <0>; + thermal-sensors = <&tsadc 1>; + + trips { + bigcore0_alert: bigcore0-alert { + temperature = <85000>; + hysteresis = <2000>; + type = "passive"; + }; + + bigcore0_crit: bigcore0-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&bigcore0_alert>; + cooling-device = + <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + + /* sensor between A76 cores 2 and 3 */ + bigcore2_thermal: bigcore2-thermal { + polling-delay-passive = <100>; + polling-delay = <0>; + thermal-sensors = <&tsadc 2>; + + trips { + bigcore2_alert: bigcore2-alert { + temperature = <85000>; + hysteresis = <2000>; + type = "passive"; + }; + + bigcore2_crit: bigcore2-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&bigcore2_alert>; + cooling-device = + <&cpu_b2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu_b3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + + /* sensor between the four A55 cores */ + little_core_thermal: littlecore-thermal { + polling-delay-passive = <100>; + polling-delay = <0>; + thermal-sensors = <&tsadc 3>; + + 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>; + }; + }; + }; + + /* sensor near the PD_CENTER power domain */ + center_thermal: center-thermal { + polling-delay-passive = <0>; + polling-delay = <0>; + thermal-sensors = <&tsadc 4>; + + trips { + center_crit: center-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + }; + + gpu_thermal: gpu-thermal { + polling-delay-passive = <0>; + polling-delay = <0>; + thermal-sensors = <&tsadc 5>; + + trips { + gpu_crit: gpu-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + }; + + npu_thermal: npu-thermal { + polling-delay-passive = <0>; + polling-delay = <0>; + thermal-sensors = <&tsadc 6>; + + trips { + npu_crit: npu-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + }; + }; + tsadc: tsadc@fec00000 { compatible = "rockchip,rk3588-tsadc"; reg = <0x0 0xfec00000 0x0 0x400>; -- 2.39.2
