1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/thermal/med 4 $id: http://devicetree.org/schemas/thermal/mediatek,lvts-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: MediaTek SoC Low Voltage Thermal Sensor 7 title: MediaTek SoC Low Voltage Thermal Sensor (LVTS)
8 8
9 maintainers: 9 maintainers:
10 - Balsam CHIHI <bchihi@baylibre.com> 10 - Balsam CHIHI <bchihi@baylibre.com>
11 11
12 description: | 12 description: |
13 LVTS is a thermal management architecture co 13 LVTS is a thermal management architecture composed of three subsystems,
14 a Sensing device - Thermal Sensing Micro Cir 14 a Sensing device - Thermal Sensing Micro Circuit Unit (TSMCU),
15 a Converter - Low Voltage Thermal Sensor con 15 a Converter - Low Voltage Thermal Sensor converter (LVTS), and
16 a Digital controller (LVTS_CTRL). 16 a Digital controller (LVTS_CTRL).
17 17
18 properties: 18 properties:
19 compatible: 19 compatible:
20 enum: 20 enum:
21 - mediatek,mt7988-lvts-ap 21 - mediatek,mt7988-lvts-ap
22 - mediatek,mt8186-lvts <<
23 - mediatek,mt8188-lvts-ap <<
24 - mediatek,mt8188-lvts-mcu <<
25 - mediatek,mt8192-lvts-ap 22 - mediatek,mt8192-lvts-ap
26 - mediatek,mt8192-lvts-mcu 23 - mediatek,mt8192-lvts-mcu
27 - mediatek,mt8195-lvts-ap 24 - mediatek,mt8195-lvts-ap
28 - mediatek,mt8195-lvts-mcu 25 - mediatek,mt8195-lvts-mcu
29 26
30 reg: 27 reg:
31 maxItems: 1 28 maxItems: 1
32 29
33 interrupts: 30 interrupts:
34 maxItems: 1 31 maxItems: 1
35 32
36 clocks: 33 clocks:
37 maxItems: 1 34 maxItems: 1
38 35
39 resets: 36 resets:
40 maxItems: 1 37 maxItems: 1
41 description: LVTS reset for clearing tempo 38 description: LVTS reset for clearing temporary data on AP/MCU.
42 39
43 nvmem-cells: 40 nvmem-cells:
44 minItems: 1 41 minItems: 1
45 items: 42 items:
46 - description: Calibration eFuse data 1 43 - description: Calibration eFuse data 1 for LVTS
47 - description: Calibration eFuse data 2 44 - description: Calibration eFuse data 2 for LVTS
48 45
49 nvmem-cell-names: 46 nvmem-cell-names:
50 minItems: 1 47 minItems: 1
51 items: 48 items:
52 - const: lvts-calib-data-1 49 - const: lvts-calib-data-1
53 - const: lvts-calib-data-2 50 - const: lvts-calib-data-2
54 51
55 "#thermal-sensor-cells": 52 "#thermal-sensor-cells":
56 const: 1 53 const: 1
57 54
58 allOf: 55 allOf:
59 - $ref: thermal-sensor.yaml# 56 - $ref: thermal-sensor.yaml#
60 57
61 - if: 58 - if:
62 properties: 59 properties:
63 compatible: 60 compatible:
64 contains: 61 contains:
65 enum: 62 enum:
66 - mediatek,mt8188-lvts-ap <<
67 - mediatek,mt8188-lvts-mcu <<
68 - mediatek,mt8192-lvts-ap 63 - mediatek,mt8192-lvts-ap
69 - mediatek,mt8192-lvts-mcu 64 - mediatek,mt8192-lvts-mcu
70 then: 65 then:
71 properties: 66 properties:
72 nvmem-cells: 67 nvmem-cells:
73 maxItems: 1 68 maxItems: 1
74 69
75 nvmem-cell-names: 70 nvmem-cell-names:
76 maxItems: 1 71 maxItems: 1
77 72
78 - if: 73 - if:
79 properties: 74 properties:
80 compatible: 75 compatible:
81 contains: 76 contains:
82 enum: 77 enum:
83 - mediatek,mt8186-lvts <<
84 - mediatek,mt8195-lvts-ap 78 - mediatek,mt8195-lvts-ap
85 - mediatek,mt8195-lvts-mcu 79 - mediatek,mt8195-lvts-mcu
86 then: 80 then:
87 properties: 81 properties:
88 nvmem-cells: 82 nvmem-cells:
89 minItems: 2 83 minItems: 2
90 84
91 nvmem-cell-names: 85 nvmem-cell-names:
92 minItems: 2 86 minItems: 2
93 87
94 required: 88 required:
95 - compatible 89 - compatible
96 - reg 90 - reg
97 - interrupts 91 - interrupts
98 - clocks 92 - clocks
99 - resets 93 - resets
100 - nvmem-cells 94 - nvmem-cells
101 - nvmem-cell-names 95 - nvmem-cell-names
>> 96 - "#thermal-sensor-cells"
102 97
103 additionalProperties: false 98 additionalProperties: false
104 99
105 examples: 100 examples:
106 - | 101 - |
107 #include <dt-bindings/interrupt-controller 102 #include <dt-bindings/interrupt-controller/arm-gic.h>
108 #include <dt-bindings/clock/mt8195-clk.h> 103 #include <dt-bindings/clock/mt8195-clk.h>
109 #include <dt-bindings/reset/mt8195-resets. 104 #include <dt-bindings/reset/mt8195-resets.h>
110 #include <dt-bindings/thermal/mediatek,lvt 105 #include <dt-bindings/thermal/mediatek,lvts-thermal.h>
111 106
112 soc { 107 soc {
113 #address-cells = <2>; 108 #address-cells = <2>;
114 #size-cells = <2>; 109 #size-cells = <2>;
115 110
116 lvts_mcu: thermal-sensor@11278000 { 111 lvts_mcu: thermal-sensor@11278000 {
117 compatible = "mediatek,mt8195-lvts-mcu 112 compatible = "mediatek,mt8195-lvts-mcu";
118 reg = <0 0x11278000 0 0x1000>; 113 reg = <0 0x11278000 0 0x1000>;
119 interrupts = <GIC_SPI 170 IRQ_TYPE_LEV 114 interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH 0>;
120 clocks = <&infracfg_ao CLK_INFRA_AO_TH 115 clocks = <&infracfg_ao CLK_INFRA_AO_THERM>;
121 resets = <&infracfg_ao MT8195_INFRA_RS 116 resets = <&infracfg_ao MT8195_INFRA_RST4_THERM_CTRL_MCU_SWRST>;
122 nvmem-cells = <&lvts_efuse_data1 &lvts 117 nvmem-cells = <&lvts_efuse_data1 &lvts_efuse_data2>;
123 nvmem-cell-names = "lvts-calib-data-1" 118 nvmem-cell-names = "lvts-calib-data-1", "lvts-calib-data-2";
124 #thermal-sensor-cells = <1>; 119 #thermal-sensor-cells = <1>;
125 }; 120 };
126 }; 121 };
127 122
128 thermal_zones: thermal-zones { 123 thermal_zones: thermal-zones {
129 cpu0-thermal { 124 cpu0-thermal {
130 polling-delay = <1000>; 125 polling-delay = <1000>;
131 polling-delay-passive = <250>; 126 polling-delay-passive = <250>;
132 thermal-sensors = <&lvts_mcu MT8195_MC 127 thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>;
133 128
134 trips { 129 trips {
135 cpu0_alert: trip-alert { 130 cpu0_alert: trip-alert {
136 temperature = <85000>; 131 temperature = <85000>;
137 hysteresis = <2000>; 132 hysteresis = <2000>;
138 type = "passive"; 133 type = "passive";
139 }; 134 };
140 135
141 cpu0_crit: trip-crit { 136 cpu0_crit: trip-crit {
142 temperature = <100000>; 137 temperature = <100000>;
143 hysteresis = <2000>; 138 hysteresis = <2000>;
144 type = "critical"; 139 type = "critical";
145 }; 140 };
146 }; 141 };
147 }; 142 };
148 }; 143 };
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