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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/hwmon/moortec,mr75203.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Moortec Semiconductor MR75203 PVT Controller8 9maintainers:10 - Rahul Tanwar <rtanwar@maxlinear.com>11 12description: |13 A Moortec PVT (Process, Voltage, Temperature) monitoring logic design can14 include many different units.15 Such a design will usually consists of several Moortec's embedded analog IPs,16 and a single Moortec controller (mr75203) to configure and control the IPs.17 18 Some of the Moortec's analog hard IPs that can be used in a design:19 *) Temperature Sensor (TS) - used to monitor core temperature (e.g. mr74137).20 *) Voltage Monitor (VM) - used to monitor voltage levels (e.g. mr74138).21 *) Process Detector (PD) - used to assess silicon speed (e.g. mr74139).22 *) Delay Chain - ring oscillator connected to the PD, used to measure IO23 based transistors (e.g. mr76008 ring oscillator at 1.1V, mr76007 ring24 oscillator at 1.8V).25 *) Pre Scaler - provides divide-by-X scaling of input voltage, which can then26 be presented for VM for measurement within its range (e.g. mr76006 -27 divide by 2 pre-scaler).28 29 TS, VM & PD also include a digital interface, which consists of configuration30 inputs and measurement outputs.31 32 Some of the units have number of series, each series can have slightly33 different characteristics.34 35 The mr75203 binding describes configuration for the controller unit, but also36 for some of the analog IPs.37 38properties:39 compatible:40 const: moortec,mr7520341 42 reg:43 items:44 - description: PVT common registers45 - description: PVT temperature sensor registers46 - description: PVT process detector registers47 - description: PVT voltage monitor registers48 49 reg-names:50 items:51 - const: common52 - const: ts53 - const: pd54 - const: vm55 56 intel,vm-map:57 description:58 PVT controller has 5 VM (voltage monitor) sensors.59 vm-map defines CPU core to VM instance mapping. A60 value of 0xff means that VM sensor is unused.61 $ref: /schemas/types.yaml#/definitions/uint8-array62 maxItems: 563 64 clocks:65 maxItems: 166 67 resets:68 maxItems: 169 70 "#thermal-sensor-cells":71 const: 172 73 moortec,vm-active-channels:74 description:75 Defines the number of channels per VM that are actually used and are76 connected to some input source.77 Maximum number of items - number of VMs.78 Maximum value of each item - number of channels.79 Minimum value of each item - 0 (which means entire VM sensor is not used).80 $ref: /schemas/types.yaml#/definitions/uint8-array81 82 moortec,vm-pre-scaler-x2:83 description:84 Defines the channels that use a mr76006 pre-scaler to divide the input85 source by 2.86 The pre-scaler is used for input sources that exceed the VM input range.87 The driver uses this information to present to the user with the actual88 value of the voltage source.89 For channels that are not listed, no pre-scaler is assumed.90 Maximum number of items - total number of channels in all VMs.91 Each channel should not appear more than once.92 $ref: /schemas/types.yaml#/definitions/uint8-array93 94 moortec,ts-series:95 description:96 Definition of the temperature equation and coefficients that shall be97 used to convert the digital output to value in milli-Celsius.98 minimum: 599 maximum: 6100 default: 5101 $ref: /schemas/types.yaml#/definitions/uint32102 103 moortec,ts-coeff-g:104 description:105 G coefficient for temperature equation.106 Default for series 5 = 60000107 Default for series 6 = 57400108 multipleOf: 100109 minimum: 1000110 $ref: /schemas/types.yaml#/definitions/uint32111 112 moortec,ts-coeff-h:113 description:114 H coefficient for temperature equation.115 Default for series 5 = 200000116 Default for series 6 = 249400117 multipleOf: 100118 minimum: 1000119 $ref: /schemas/types.yaml#/definitions/uint32120 121 moortec,ts-coeff-cal5:122 description:123 cal5 coefficient for temperature equation.124 Default for series 5 = 4094125 Default for series 6 = 4096126 minimum: 1127 $ref: /schemas/types.yaml#/definitions/uint32128 129 moortec,ts-coeff-j:130 description:131 J coefficient for temperature equation.132 Default for series 5 = -100133 Default for series 6 = 0134 multipleOf: 100135 maximum: 0136 $ref: /schemas/types.yaml#/definitions/int32137 138required:139 - compatible140 - reg141 - reg-names142 - clocks143 - "#thermal-sensor-cells"144 145additionalProperties: false146 147examples:148 - |149 pvt: pvt@e0680000 {150 compatible = "moortec,mr75203";151 reg = <0xe0680000 0x80>,152 <0xe0680080 0x180>,153 <0xe0680200 0x200>,154 <0xe0680400 0xc00>;155 reg-names = "common", "ts", "pd", "vm";156 intel,vm-map = [03 01 04 ff ff];157 clocks = <&osc0>;158 resets = <&rcu0 0x40 7>;159 moortec,vm-active-channels = /bits/ 8 <0x10 0x05>;160 moortec,vm-pre-scaler-x2 = /bits/ 8 <5 6 20>;161 moortec,ts-coeff-g = <61400>;162 moortec,ts-coeff-h = <253700>;163 #thermal-sensor-cells = <1>;164 };165