hwmon/pmbus/max31785.txt

9 - compatible     : One of "maxim,max31785" or "maxim,max31785a"
10 - reg            : I2C address, one of 0x52, 0x53, 0x54, 0x55.
11 - #address-cells : Must be 1
12 - #size-cells    : Must be 0
13 - #thermal-sensor-cells  : Should be 1. The device supports:
14                            - One internal sensor
15                            - Four external I2C digital sensors
16                            - Six external thermal diodes
19 - use-stored-presence    : Do not treat the devicetree description as canon for
27 ----
30 use-stored-presence is present in the parent node, then only fans that are both
35 - compatible             : Must be "pmbus-fan"
36 - reg                    : The PMBus page the properties apply to.
37 - #cooling-cells         : Should be 2. See the thermal bindings at [1].
38 - maxim,fan-rotor-input  : The type of rotor measurement provided to the
40                            pulses or "lock" for a locked-rotor signal.
41 - maxim,fan-lock-polarity: Required iff maxim,fan-rotor-input is "lock". Valid
42                            values are "low" for active low, "high" for active
46 - fan-mode               : "rpm" or "pwm". Default value is "pwm".
47 - tach-pulses            : Tachometer pulses per revolution. Valid values are
49 - cooling-min-level      : Smallest cooling state accepted. See [1].
50 - cooling-max-level      : Largest cooling state accepted. See [1].
51 - maxim,fan-no-fault-ramp: Do not ramp the fan to 100% PWM duty on detecting a
53 - maxim,fan-startup      : The number of rotations required before taking
56                            of maxim,fan-no-fault-ramp. Valid values are 0
57                            (automatic spin-up disabled), 2, 4, or 8. Default
59 - maxim,fan-health       : Enable automated fan health check
60 - maxim,fan-ramp         : Configures how fast the device ramps the PWM duty
62                            to 7 inclusive, with values 0 - 2 configuring a
63                            1000ms update rate and 1 - 3% duty respective duty
64                            increase, and 3 - 7 a 200ms update rate with a 1 -
66 - maxim,fan-no-watchdog  : Do not ramp fan to 100% PWM duty on failure to
67                            update desired fan rate inside 10s. This implies
68                            maxim,tmp-no-fault-ramp
69 - maxim,tmp-no-fault-ramp: Do not ramp fan to 100% PWM duty on temperature
71                            maxim,fan-no-watchdog
72 - maxim,tmp-hysteresis   : The temperature hysteresis used to determine
74                            temperature/fan rate lookup table. Valid values are
76 - maxim,fan-dual-tach    : Enable dual tachometer functionality
77 - maxim,fan-pwm-freq     : The PWM frequency. Valid values are 30, 50, 100, 150
79 - maxim,fan-lookup-table : A 16-element cell array of alternating temperature
80                            and rate values representing the look up table. The
81                            rate units are set through the fan-mode property.
82 - maxim,fan-fault-pin-mon: Ramp fans to 100% PWM duty when the FAULT pin is
86 -----------
89 - compatible    : Must be "pmbus-temperature"
90 - reg           : The PMBus page the properties apply to.
93 - maxim,tmp-offset      : Valid values are 0 - 30 (degrees celcius) inclusive.
95 - maxim,tmp-fans        : An array of phandles to fans controlled by the
101 	fan-max31785: max31785@52 {
104                 #address-cells = <1>;
105                 #size-cells = <0>;
106                 #thermal-sensor-cells = <1>;
109                         compatible = "pmbus-fan";
112                         tach-pulses = <1>;
114                         #cooling-cells = <2>;
115                         cooling-min-level = <0>;
116                         cooling-max-level = <9>;
118                         maxim,fan-rotor-input = "tach";
119                         maxim,fan-dual-tach;
129                         compatible = "pmbus-fan";
132                         tach-pulses = <1>;
134                         #cooling-cells = <2>;
136                         maxim,fan-rotor-input = "tach";
137                         maxim,tmp-hysteresis = <2>;
138                         maxim,fan-lookup-table = <
152                         compatible = "pmbus-temperature";
155                         maxim,tmp-offset = <0>;
156                         maxim,tmp-fans = <&cpu_fan>;