Enable throttle function for SOC_THERM. Set "hot" trips for cpu and gpu thermal zones, which can trigger the SOC_THERM hardware throttle. Signed-off-by: Wei Ni <wni@xxxxxxxxxx> --- arch/arm64/boot/dts/nvidia/tegra210.dtsi | 41 +++++++++++++++++++++++++------- 1 file changed, 32 insertions(+), 9 deletions(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index e3cca58a4c86..332771ab38e8 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -804,7 +804,9 @@ soctherm: thermal-sensor@0,700e2000 { compatible = "nvidia,tegra210-soctherm"; - reg = <0x0 0x700e2000 0x0 0x1000>; + reg = <0x0 0x700e2000 0x0 0x600 /* SOC_THERM reg_base */ + 0x0 0x60006000 0x0 0x400>; /* CAR reg_base */ + reg-names = "soctherm-reg", "car-reg"; interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; clocks = <&tegra_car TEGRA210_CLK_TSENSOR>, <&tegra_car TEGRA210_CLK_SOC_THERM>; @@ -812,6 +814,15 @@ resets = <&tegra_car 78>; reset-names = "soctherm"; #thermal-sensor-cells = <1>; + + throttle-cfgs { + throttle_heavy: heavy { + priority = <100>; + cpu-throt-depth = <85>; + + #cooling-cells = <2>; + }; + }; }; thermal-zones { @@ -828,13 +839,19 @@ hysteresis = <0>; type = "critical"; }; + + cpu_throttle_trip: throttle-trip { + temperature = <98500>; + hysteresis = <1000>; + type = "hot"; + }; }; cooling-maps { - /* - * There are currently no cooling maps, - * because there are no cooling devices. - */ + map0 { + trip = <&cpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; }; }; mem { @@ -872,13 +889,19 @@ hysteresis = <0>; type = "critical"; }; + + gpu_throttle_trip: throttle-trip { + temperature = <100000>; + hysteresis = <1000>; + type = "hot"; + }; }; cooling-maps { - /* - * There are currently no cooling maps, - * because there are no cooling devices. - */ + map0 { + trip = <&gpu_throttle_trip>; + cooling-device = <&throttle_heavy 1 1>; + }; }; }; pllx { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html