Lines Matching refs:fan
4 The GMT G762 Fan Speed PWM Controller is connected directly to a fan
5 and performs closed-loop or open-loop control of the fan speed. Two
19 fan revolution, ...); Those can be modified via devicetree bindings
24 fan1_target: set desired fan speed. This only makes sense in closed-loop
25 fan speed control (i.e. when pwm1_enable is set to 2).
27 fan1_input: provide current fan rotation value in RPM as reported by
28 the fan to the device.
30 fan1_div: fan clock divisor. Supported value are 1, 2, 4 and 8.
32 fan1_pulses: number of pulses per fan revolution. Supported values
35 fan1_fault: reports fan failure, i.e. no transition on fan gear pin for
36 about 0.7s (if the fan is not voluntarily set off).
38 fan1_alarm: in closed-loop control mode, if fan RPM value is 25% out
42 pwm1_enable: set current fan speed control mode i.e. 1 for manual fan
44 automatic fan speed control (closed-loop) via fan1_target
47 pwm1_mode: set or get fan driving mode: 1 for PWM mode, 0 for DC mode.
49 pwm1: get or set PWM fan control value in open-loop mode. This is an
50 integer value between 0 and 255. 0 stops the fan, 255 makes
54 when current fan speed control mode is open-loop ('pwm1_enable' set to 1),
55 the fan speed is programmed by setting a value between 0 and 255 via 'pwm1'
56 entry (0 stops the fan, 255 makes it run at full speed). In closed-loop mode
60 is performed to match that target value. The fan speed value is computed
62 system: a reference clock source frequency, a number of pulses per fan