1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2*4882a593Smuzhiyun%YAML 1.2 3*4882a593Smuzhiyun--- 4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/hwmon/adt7475.yaml# 5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml# 6*4882a593Smuzhiyun 7*4882a593Smuzhiyuntitle: ADT7475 hwmon sensor 8*4882a593Smuzhiyun 9*4882a593Smuzhiyunmaintainers: 10*4882a593Smuzhiyun - Jean Delvare <jdelvare@suse.com> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyundescription: | 13*4882a593Smuzhiyun The ADT7473, ADT7475, ADT7476, and ADT7490 are thermal monitors and multiple 14*4882a593Smuzhiyun PWN fan controllers. 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun They support monitoring and controlling up to four fans (the ADT7490 can only 17*4882a593Smuzhiyun control up to three). They support reading a single on chip temperature 18*4882a593Smuzhiyun sensor and two off chip temperature sensors (the ADT7490 additionally 19*4882a593Smuzhiyun supports measuring up to three current external temperature sensors with 20*4882a593Smuzhiyun series resistance cancellation (SRC)). 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun Datasheets: 23*4882a593Smuzhiyun https://www.onsemi.com/pub/Collateral/ADT7473-D.PDF 24*4882a593Smuzhiyun https://www.onsemi.com/pub/Collateral/ADT7475-D.PDF 25*4882a593Smuzhiyun https://www.onsemi.com/pub/Collateral/ADT7476-D.PDF 26*4882a593Smuzhiyun https://www.onsemi.com/pub/Collateral/ADT7490-D.PDF 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun Description taken from onsemiconductors specification sheets, with minor 29*4882a593Smuzhiyun rephrasing. 30*4882a593Smuzhiyun 31*4882a593Smuzhiyunproperties: 32*4882a593Smuzhiyun compatible: 33*4882a593Smuzhiyun enum: 34*4882a593Smuzhiyun - adi,adt7473 35*4882a593Smuzhiyun - adi,adt7475 36*4882a593Smuzhiyun - adi,adt7476 37*4882a593Smuzhiyun - adi,adt7490 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun reg: 40*4882a593Smuzhiyun maxItems: 1 41*4882a593Smuzhiyun 42*4882a593SmuzhiyunpatternProperties: 43*4882a593Smuzhiyun "^adi,bypass-attenuator-in[0-4]$": 44*4882a593Smuzhiyun description: | 45*4882a593Smuzhiyun Configures bypassing the individual voltage input attenuator. If 46*4882a593Smuzhiyun set to 1 the attenuator is bypassed if set to 0 the attenuator is 47*4882a593Smuzhiyun not bypassed. If the property is absent then the attenuator 48*4882a593Smuzhiyun retains it's configuration from the bios/bootloader. 49*4882a593Smuzhiyun $ref: /schemas/types.yaml#/definitions/uint32 50*4882a593Smuzhiyun enum: [0, 1] 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun "^adi,pwm-active-state$": 53*4882a593Smuzhiyun description: | 54*4882a593Smuzhiyun Integer array, represents the active state of the pwm outputs If set to 0 55*4882a593Smuzhiyun the pwm uses a logic low output for 100% duty cycle. If set to 1 the pwm 56*4882a593Smuzhiyun uses a logic high output for 100% duty cycle. 57*4882a593Smuzhiyun $ref: /schemas/types.yaml#/definitions/uint32-array 58*4882a593Smuzhiyun minItems: 3 59*4882a593Smuzhiyun maxItems: 3 60*4882a593Smuzhiyun items: 61*4882a593Smuzhiyun enum: [0, 1] 62*4882a593Smuzhiyun default: 1 63*4882a593Smuzhiyun 64*4882a593Smuzhiyunrequired: 65*4882a593Smuzhiyun - compatible 66*4882a593Smuzhiyun - reg 67*4882a593Smuzhiyun 68*4882a593SmuzhiyunadditionalProperties: false 69*4882a593Smuzhiyun 70*4882a593Smuzhiyunexamples: 71*4882a593Smuzhiyun - | 72*4882a593Smuzhiyun i2c { 73*4882a593Smuzhiyun #address-cells = <1>; 74*4882a593Smuzhiyun #size-cells = <0>; 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun hwmon@2e { 77*4882a593Smuzhiyun compatible = "adi,adt7476"; 78*4882a593Smuzhiyun reg = <0x2e>; 79*4882a593Smuzhiyun adi,bypass-attenuator-in0 = <1>; 80*4882a593Smuzhiyun adi,bypass-attenuator-in1 = <0>; 81*4882a593Smuzhiyun adi,pwm-active-state = <1 0 1>; 82*4882a593Smuzhiyun }; 83*4882a593Smuzhiyun }; 84*4882a593Smuzhiyun 85