tegrakernel/hardware/nvidia/soc/t210/kernel-dts/tegra210-soc/tegra210-power-dvfs.dtsi

/*
 * Copyright (c) 2014-2018 NVIDIA CORPORATION. All rights reserved.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <dt-bindings/clock/tegra210-car.h>
#include <dt-bindings/thermal/tegra210-trips.h>

#define SET_MAP_TRIP(tdomain, cdomain, vtype, num, temp)		\
	trips {								\
		tdomain##_##vtype##num: tdomain-vtype##num {		\
			temperature = <temp>;				\
			hysteresis = <1000>;				\
			type = "active";				\
		};							\
	};								\
	cooling-maps {							\
		tdomain-vtype-map##num {				\
			trip = <&tdomain##_##vtype##num>;		\
			cooling-device = <&cdomain##_##vtype##_cdev num num>; \
		};							\
	}

/ {
	dvfs_rails {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;

		gpu_scaling_cdev: vdd-gpu-scaling-cdev@7 {
			status = "disabled";
			reg = <7>;
			cooling-min-state = <0>;
			cooling-max-state = <5>;
			#cooling-cells = <2>;
			compatible = "nvidia,tegra210-rail-scaling-cdev";
			cdev-type = "gpu_scaling";
			nvidia,constraint;
			nvidia,trips = <&gpu_scaling0 950 &gpu_scaling1 0
					&gpu_scaling2 0 &gpu_scaling3 0
					&gpu_scaling4 0 &gpu_scaling5 0>;
		};

		gpu_vmax_cdev: vdd-gpu-vmax-cdev@9 {
			status = "disabled";
			reg = <9>;
			cooling-min-state = <0>;
			cooling-max-state = <1>;
			#cooling-cells = <2>;
			compatible = "nvidia,tegra210-rail-vmax-cdev";
			cdev-type = "GPU-cap";
			nvidia,constraint-ucm2;
			nvidia,trips = <&gpu_vmax1 1132 1090>;
			clocks = <&tegra_car TEGRA210_CLK_CAP_VGPU_GBUS>;
			clock-names = "cap-clk";
		};
	};

	dfll_cap: dfll-cdev-cap {
		compatible = "nvidia,tegra-dfll-cdev-action";
		act-dev = <&tegra_clk_dfll>;
		cdev-type = "DFLL-cap";
		#cooling-cells = <2>; /* min followed by max */
	};

	dfll_floor: dfll-cdev-floor {
		compatible = "nvidia,tegra-dfll-cdev-action";
		act-dev = <&tegra_clk_dfll>;
		cdev-type = "DFLL-floor";
		#cooling-cells = <2>; /* min followed by max */
	};

	thermal-zones {
		Tdiode_tegra {
			trips {
				/* Reference only trip, not mapped */
				gpu_scaling0: gpu-scaling0 {
					temperature = <(-25000)>;
					hysteresis = <0>;
					type = "active";
				};
				gpu_scaling1: gpu-scaling1 {
					temperature = <15000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				gpu_scaling2: gpu-scaling2 {
					temperature = <30000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				gpu_scaling3: gpu-scaling3 {
					temperature = <50000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				gpu_scaling4: gpu-scaling4 {
					temperature = <70000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				gpu_scaling5: gpu-scaling5 {
					temperature = <105000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};

				gpu_vmax1: gpu-vmax1 {
					temperature = <83000>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
			};

			cooling-maps {
				gpu-scaling-map1 {
					trip = <&gpu_scaling1>;
					cooling-device = <&gpu_scaling_cdev 1 1>;
				};
				gpu-scaling-map2 {
					trip = <&gpu_scaling2>;
					cooling-device = <&gpu_scaling_cdev 2 2>;
				};
				gpu_scaling_map3 {
					trip = <&gpu_scaling3>;
					cooling-device = <&gpu_scaling_cdev 3 3>;
				};
				gpu-scaling-map4 {
					trip = <&gpu_scaling4>;
					cooling-device = <&gpu_scaling_cdev 4 4>;
				};
				gpu-scaling-map5 {
					trip = <&gpu_scaling5>;
					cooling-device = <&gpu_scaling_cdev 5 5>;
				};

				gpu-vmax-map1 {
					trip = <&gpu_vmax1>;
					cooling-device = <&gpu_vmax_cdev 1 1>;
				};
			};
		};

		CPU-therm {
			trips {
				dfll_cap_trip0: dfll-cap-trip0 {
					temperature = <TEGRA210_DFLL_THERMAL_CAP_0>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				dfll_cap_trip1: dfll-cap-trip1 {
					temperature = <TEGRA210_DFLL_THERMAL_CAP_1>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
			};

			cooling-maps {
				dfll-cap-map0 {
					trip = <&dfll_cap_trip0>;
					cooling-device = <&dfll_cap 1 1>;
				};
				dfll-cap-map1 {
					trip = <&dfll_cap_trip1>;
					cooling-device = <&dfll_cap 2 2>;
				};
			};
		};
		LCPU-therm {
			trips {
				lcpu_dfll_cap_trip0: lcpu-dfll-cap-trip0 {
					temperature = <TEGRA210_DFLL_THERMAL_CAP_0>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
				lcpu_dfll_cap_trip1: lcpu-dfll-cap-trip1 {
					temperature = <TEGRA210_DFLL_THERMAL_CAP_1>; /* millicelsius */
					hysteresis = <1000>; /* millicelsius */
					type = "active";
				};
			};

			cooling-maps {
				lcpu_dfll-cap-map0 {
					trip = <&lcpu_dfll_cap_trip0>;
					cooling-device = <&dfll_cap 1 1>;
				};
				lcpu_dfll-cap-map1 {
					trip = <&lcpu_dfll_cap_trip1>;
					cooling-device = <&dfll_cap 2 2>;
				};
			};

		};
	};
};