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 22 - mediatek,mt8186-lvts
23 - mediatek,mt8188-lvts-ap 23 - mediatek,mt8188-lvts-ap
24 - mediatek,mt8188-lvts-mcu 24 - mediatek,mt8188-lvts-mcu
25 - mediatek,mt8192-lvts-ap 25 - mediatek,mt8192-lvts-ap
26 - mediatek,mt8192-lvts-mcu 26 - mediatek,mt8192-lvts-mcu
27 - mediatek,mt8195-lvts-ap 27 - mediatek,mt8195-lvts-ap
28 - mediatek,mt8195-lvts-mcu 28 - mediatek,mt8195-lvts-mcu
29 29
30 reg: 30 reg:
31 maxItems: 1 31 maxItems: 1
32 32
33 interrupts: 33 interrupts:
34 maxItems: 1 34 maxItems: 1
35 35
36 clocks: 36 clocks:
37 maxItems: 1 37 maxItems: 1
38 38
39 resets: 39 resets:
40 maxItems: 1 40 maxItems: 1
41 description: LVTS reset for clearing tempo 41 description: LVTS reset for clearing temporary data on AP/MCU.
42 42
43 nvmem-cells: 43 nvmem-cells:
44 minItems: 1 44 minItems: 1
45 items: 45 items:
46 - description: Calibration eFuse data 1 46 - description: Calibration eFuse data 1 for LVTS
47 - description: Calibration eFuse data 2 47 - description: Calibration eFuse data 2 for LVTS
48 48
49 nvmem-cell-names: 49 nvmem-cell-names:
50 minItems: 1 50 minItems: 1
51 items: 51 items:
52 - const: lvts-calib-data-1 52 - const: lvts-calib-data-1
53 - const: lvts-calib-data-2 53 - const: lvts-calib-data-2
54 54
55 "#thermal-sensor-cells": 55 "#thermal-sensor-cells":
56 const: 1 56 const: 1
57 57
58 allOf: 58 allOf:
59 - $ref: thermal-sensor.yaml# 59 - $ref: thermal-sensor.yaml#
60 60
61 - if: 61 - if:
62 properties: 62 properties:
63 compatible: 63 compatible:
64 contains: 64 contains:
65 enum: 65 enum:
66 - mediatek,mt8188-lvts-ap 66 - mediatek,mt8188-lvts-ap
67 - mediatek,mt8188-lvts-mcu 67 - mediatek,mt8188-lvts-mcu
68 - mediatek,mt8192-lvts-ap 68 - mediatek,mt8192-lvts-ap
69 - mediatek,mt8192-lvts-mcu 69 - mediatek,mt8192-lvts-mcu
70 then: 70 then:
71 properties: 71 properties:
72 nvmem-cells: 72 nvmem-cells:
73 maxItems: 1 73 maxItems: 1
74 74
75 nvmem-cell-names: 75 nvmem-cell-names:
76 maxItems: 1 76 maxItems: 1
77 77
78 - if: 78 - if:
79 properties: 79 properties:
80 compatible: 80 compatible:
81 contains: 81 contains:
82 enum: 82 enum:
83 - mediatek,mt8186-lvts 83 - mediatek,mt8186-lvts
84 - mediatek,mt8195-lvts-ap 84 - mediatek,mt8195-lvts-ap
85 - mediatek,mt8195-lvts-mcu 85 - mediatek,mt8195-lvts-mcu
86 then: 86 then:
87 properties: 87 properties:
88 nvmem-cells: 88 nvmem-cells:
89 minItems: 2 89 minItems: 2
90 90
91 nvmem-cell-names: 91 nvmem-cell-names:
92 minItems: 2 92 minItems: 2
93 93
94 required: 94 required:
95 - compatible 95 - compatible
96 - reg 96 - reg
97 - interrupts 97 - interrupts
98 - clocks 98 - clocks
99 - resets 99 - resets
100 - nvmem-cells 100 - nvmem-cells
101 - nvmem-cell-names 101 - nvmem-cell-names
102 102
103 additionalProperties: false 103 additionalProperties: false
104 104
105 examples: 105 examples:
106 - | 106 - |
107 #include <dt-bindings/interrupt-controller 107 #include <dt-bindings/interrupt-controller/arm-gic.h>
108 #include <dt-bindings/clock/mt8195-clk.h> 108 #include <dt-bindings/clock/mt8195-clk.h>
109 #include <dt-bindings/reset/mt8195-resets. 109 #include <dt-bindings/reset/mt8195-resets.h>
110 #include <dt-bindings/thermal/mediatek,lvt 110 #include <dt-bindings/thermal/mediatek,lvts-thermal.h>
111 111
112 soc { 112 soc {
113 #address-cells = <2>; 113 #address-cells = <2>;
114 #size-cells = <2>; 114 #size-cells = <2>;
115 115
116 lvts_mcu: thermal-sensor@11278000 { 116 lvts_mcu: thermal-sensor@11278000 {
117 compatible = "mediatek,mt8195-lvts-mcu 117 compatible = "mediatek,mt8195-lvts-mcu";
118 reg = <0 0x11278000 0 0x1000>; 118 reg = <0 0x11278000 0 0x1000>;
119 interrupts = <GIC_SPI 170 IRQ_TYPE_LEV 119 interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH 0>;
120 clocks = <&infracfg_ao CLK_INFRA_AO_TH 120 clocks = <&infracfg_ao CLK_INFRA_AO_THERM>;
121 resets = <&infracfg_ao MT8195_INFRA_RS 121 resets = <&infracfg_ao MT8195_INFRA_RST4_THERM_CTRL_MCU_SWRST>;
122 nvmem-cells = <&lvts_efuse_data1 &lvts 122 nvmem-cells = <&lvts_efuse_data1 &lvts_efuse_data2>;
123 nvmem-cell-names = "lvts-calib-data-1" 123 nvmem-cell-names = "lvts-calib-data-1", "lvts-calib-data-2";
124 #thermal-sensor-cells = <1>; 124 #thermal-sensor-cells = <1>;
125 }; 125 };
126 }; 126 };
127 127
128 thermal_zones: thermal-zones { 128 thermal_zones: thermal-zones {
129 cpu0-thermal { 129 cpu0-thermal {
130 polling-delay = <1000>; 130 polling-delay = <1000>;
131 polling-delay-passive = <250>; 131 polling-delay-passive = <250>;
132 thermal-sensors = <&lvts_mcu MT8195_MC 132 thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>;
133 133
134 trips { 134 trips {
135 cpu0_alert: trip-alert { 135 cpu0_alert: trip-alert {
136 temperature = <85000>; 136 temperature = <85000>;
137 hysteresis = <2000>; 137 hysteresis = <2000>;
138 type = "passive"; 138 type = "passive";
139 }; 139 };
140 140
141 cpu0_crit: trip-crit { 141 cpu0_crit: trip-crit {
142 temperature = <100000>; 142 temperature = <100000>;
143 hysteresis = <2000>; 143 hysteresis = <2000>;
144 type = "critical"; 144 type = "critical";
145 }; 145 };
146 }; 146 };
147 }; 147 };
148 }; 148 };
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