| /Linux-v5.4/drivers/platform/x86/ |
| D | gpd-pocket-fan.c | 44 static void gpd_pocket_fan_set_speed(struct gpd_pocket_fan_data *fan, int speed) in gpd_pocket_fan_set_speed() argument
46 if (speed == fan->last_speed) in gpd_pocket_fan_set_speed()
49 gpiod_direction_output(fan->gpio0, !!(speed & 1)); in gpd_pocket_fan_set_speed()
50 gpiod_direction_output(fan->gpio1, !!(speed & 2)); in gpd_pocket_fan_set_speed()
52 fan->last_speed = speed; in gpd_pocket_fan_set_speed()
65 struct gpd_pocket_fan_data *fan = in gpd_pocket_fan_worker() local
69 if (thermal_zone_get_temp(fan->dts0, &t0) || in gpd_pocket_fan_worker()
70 thermal_zone_get_temp(fan->dts1, &t1)) { in gpd_pocket_fan_worker()
71 dev_warn(fan->dev, "Error getting temperature\n"); in gpd_pocket_fan_worker()
78 speed = fan->last_speed; in gpd_pocket_fan_worker()
[all …]
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| /Linux-v5.4/drivers/macintosh/ |
| D | windfarm_fcu_controls.c | 80 struct wf_fcu_fan *fan = ct->priv; in wf_fcu_fan_release() local
82 kref_put(&fan->fcu_priv->ref, wf_fcu_release); in wf_fcu_fan_release()
83 kfree(fan); in wf_fcu_fan_release()
146 struct wf_fcu_fan *fan = ct->priv; in wf_fcu_fan_set_rpm() local
147 struct wf_fcu_priv *pv = fan->fcu_priv; in wf_fcu_fan_set_rpm()
151 if (value < fan->min) in wf_fcu_fan_set_rpm()
152 value = fan->min; in wf_fcu_fan_set_rpm()
153 if (value > fan->max) in wf_fcu_fan_set_rpm()
154 value = fan->max; in wf_fcu_fan_set_rpm()
156 fan->target = value; in wf_fcu_fan_set_rpm()
[all …]
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| D | therm_windtunnel.c | 57 struct i2c_client *fan; member
158 write_reg( x.fan, 0x25, val, 1 ); in tune_fan()
159 write_reg( x.fan, 0x20, 0, 1 ); in tune_fan()
179 casetemp = read_reg(x.fan, 0x0b, 1) << 8; in poll_temp()
180 casetemp |= (read_reg(x.fan, 0x06, 1) & 0x7) << 5; in poll_temp()
215 x.r0 = read_reg( x.fan, 0x00, 1 ); in setup_hardware()
216 x.r1 = read_reg( x.fan, 0x01, 1 ); in setup_hardware()
217 x.r20 = read_reg( x.fan, 0x20, 1 ); in setup_hardware()
218 x.r23 = read_reg( x.fan, 0x23, 1 ); in setup_hardware()
219 x.r25 = read_reg( x.fan, 0x25, 1 ); in setup_hardware()
[all …]
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| /Linux-v5.4/drivers/gpu/drm/nouveau/nvkm/subdev/therm/ |
| D | fantog.c | 39 nvkm_fantog_update(struct nvkm_fantog *fan, int percent) in nvkm_fantog_update() argument
41 struct nvkm_therm *therm = fan->base.parent; in nvkm_fantog_update()
48 spin_lock_irqsave(&fan->lock, flags); in nvkm_fantog_update()
50 percent = fan->percent; in nvkm_fantog_update()
51 fan->percent = percent; in nvkm_fantog_update()
57 u64 next_change = (percent * fan->period_us) / 100; in nvkm_fantog_update()
59 next_change = fan->period_us - next_change; in nvkm_fantog_update()
60 nvkm_timer_alarm(tmr, next_change * 1000, &fan->alarm); in nvkm_fantog_update()
62 spin_unlock_irqrestore(&fan->lock, flags); in nvkm_fantog_update()
68 struct nvkm_fantog *fan = in nvkm_fantog_alarm() local
[all …]
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| D | fan.c | 32 nvkm_fan_update(struct nvkm_fan *fan, bool immediate, int target) in nvkm_fan_update() argument
34 struct nvkm_therm *therm = fan->parent; in nvkm_fan_update()
42 spin_lock_irqsave(&fan->lock, flags); in nvkm_fan_update()
44 target = fan->percent; in nvkm_fan_update()
45 target = max_t(u8, target, fan->bios.min_duty); in nvkm_fan_update()
46 target = min_t(u8, target, fan->bios.max_duty); in nvkm_fan_update()
47 if (fan->percent != target) { in nvkm_fan_update()
49 fan->percent = target; in nvkm_fan_update()
53 duty = fan->get(therm); in nvkm_fan_update()
55 spin_unlock_irqrestore(&fan->lock, flags); in nvkm_fan_update()
[all …]
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| D | fanpwm.c | 40 struct nvkm_fanpwm *fan = (void *)therm->fan; in nvkm_fanpwm_get() local
47 ret = therm->func->pwm_get(therm, fan->func.line, &divs, &duty); in nvkm_fanpwm_get()
50 if (card_type <= NV_40 || (fan->func.log[0] & 1)) in nvkm_fanpwm_get()
55 return nvkm_gpio_get(gpio, 0, fan->func.func, fan->func.line) * 100; in nvkm_fanpwm_get()
61 struct nvkm_fanpwm *fan = (void *)therm->fan; in nvkm_fanpwm_set() local
66 divs = fan->base.perf.pwm_divisor; in nvkm_fanpwm_set()
67 if (fan->base.bios.pwm_freq) { in nvkm_fanpwm_set()
70 divs = therm->func->pwm_clock(therm, fan->func.line); in nvkm_fanpwm_set()
71 divs /= fan->base.bios.pwm_freq; in nvkm_fanpwm_set()
75 if (card_type <= NV_40 || (fan->func.log[0] & 1)) in nvkm_fanpwm_set()
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| D | base.c | 40 struct nvbios_therm_trip_point *trip = therm->fan->bios.trip, in nvkm_therm_update_trip()
48 for (i = 0; i < therm->fan->bios.nr_fan_trip; i++) { in nvkm_therm_update_trip()
78 return therm->fan->bios.min_duty; in nvkm_therm_compute_linear_duty()
80 return therm->fan->bios.max_duty; in nvkm_therm_compute_linear_duty()
84 duty *= (therm->fan->bios.max_duty - therm->fan->bios.min_duty); in nvkm_therm_compute_linear_duty()
86 duty += therm->fan->bios.min_duty; in nvkm_therm_compute_linear_duty()
93 u8 min = therm->fan->bios.linear_min_temp; in nvkm_therm_update_linear()
94 u8 max = therm->fan->bios.linear_max_temp; in nvkm_therm_update_linear()
129 switch(therm->fan->bios.fan_mode) { in nvkm_therm_update()
164 nvkm_therm_cstate(struct nvkm_therm *therm, int fan, int dir) in nvkm_therm_cstate() argument
[all …]
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| /Linux-v5.4/drivers/hwmon/ |
| D | mlxreg-fan.c | 116 struct mlxreg_fan *fan = dev_get_drvdata(dev); in mlxreg_fan_read() local
123 tacho = &fan->tacho[channel]; in mlxreg_fan_read()
126 err = regmap_read(fan->regmap, tacho->reg, ®val); in mlxreg_fan_read()
130 *val = MLXREG_FAN_GET_RPM(regval, fan->divider, in mlxreg_fan_read()
131 fan->samples); in mlxreg_fan_read()
135 err = regmap_read(fan->regmap, tacho->reg, ®val); in mlxreg_fan_read()
150 err = regmap_read(fan->regmap, fan->pwm.reg, ®val); in mlxreg_fan_read()
173 struct mlxreg_fan *fan = dev_get_drvdata(dev); in mlxreg_fan_write() local
182 return regmap_write(fan->regmap, fan->pwm.reg, val); in mlxreg_fan_write()
233 HWMON_CHANNEL_INFO(fan,
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| /Linux-v5.4/drivers/acpi/ |
| D | fan.c | 85 struct acpi_fan *fan = acpi_driver_data(device); in fan_get_max_state() local
87 if (fan->acpi4) in fan_get_max_state()
88 *state = fan->fps_count - 1; in fan_get_max_state()
97 struct acpi_fan *fan = acpi_driver_data(device); in fan_get_state_acpi4() local
118 for (i = 0; i < fan->fps_count; i++) { in fan_get_state_acpi4()
125 if (fan->fif.fine_grain_ctrl && control < fan->fps[i].control) { in fan_get_state_acpi4()
128 } else if (control == fan->fps[i].control) { in fan_get_state_acpi4()
132 if (i == fan->fps_count) { in fan_get_state_acpi4()
164 struct acpi_fan *fan = acpi_driver_data(device); in fan_get_cur_state() local
166 if (fan->acpi4) in fan_get_cur_state()
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| /Linux-v5.4/drivers/gpu/drm/nouveau/nvkm/subdev/bios/ |
| D | fan.c | 32 u32 fan = 0; in nvbios_fan_table() local
36 fan = nvbios_rd32(bios, bit_P.offset + 0x58); in nvbios_fan_table()
38 if (fan) { in nvbios_fan_table()
39 *ver = nvbios_rd08(bios, fan + 0); in nvbios_fan_table()
42 *hdr = nvbios_rd08(bios, fan + 1); in nvbios_fan_table()
43 *len = nvbios_rd08(bios, fan + 2); in nvbios_fan_table()
44 *cnt = nvbios_rd08(bios, fan + 3); in nvbios_fan_table()
45 return fan; in nvbios_fan_table()
66 nvbios_fan_parse(struct nvkm_bios *bios, struct nvbios_therm_fan *fan) in nvbios_fan_parse() argument
75 fan->type = NVBIOS_THERM_FAN_TOGGLE; in nvbios_fan_parse()
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| D | therm.c | 153 nvbios_therm_fan_parse(struct nvkm_bios *bios, struct nvbios_therm_fan *fan) in nvbios_therm_fan_parse() argument
163 fan->nr_fan_trip = 0; in nvbios_therm_fan_parse()
164 fan->fan_mode = NVBIOS_THERM_FAN_OTHER; in nvbios_therm_fan_parse()
170 fan->min_duty = value & 0xff; in nvbios_therm_fan_parse()
171 fan->max_duty = (value & 0xff00) >> 8; in nvbios_therm_fan_parse()
174 fan->nr_fan_trip++; in nvbios_therm_fan_parse()
175 if (fan->fan_mode > NVBIOS_THERM_FAN_TRIP) in nvbios_therm_fan_parse()
176 fan->fan_mode = NVBIOS_THERM_FAN_TRIP; in nvbios_therm_fan_parse()
177 cur_trip = &fan->trip[fan->nr_fan_trip - 1]; in nvbios_therm_fan_parse()
183 cur_trip = &fan->trip[fan->nr_fan_trip - 1]; in nvbios_therm_fan_parse()
[all …]
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| /Linux-v5.4/Documentation/devicetree/bindings/hwmon/ |
| D | npcm750-pwm-fan.txt | 6 Required properties for pwm-fan node
9 - compatible : "nuvoton,npcm750-pwm-fan" for Poleg NPCM7XX.
13 * "fan" for the Fan registers.
17 * "fan" for Fan controller operating clock.
23 fan subnode format:
25 Under fan subnode can be upto 8 child nodes, each child node representing a fan.
26 Each fan subnode must have one PWM channel and atleast one Fan tach channel.
36 - fan-tach-ch : specify the Fan tach input channel.
38 the fan tach channel number that used.
48 pwm_fan:pwm-fan-controller@103000 {
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| D | pwm-fan.txt | 1 Bindings for a fan connected to the PWM lines
4 - compatible : "pwm-fan"
5 - pwms : the PWM that is used to control the PWM fan
10 - fan-supply : phandle to the regulator that provides power to the fan
12 describes the tachometer output of the fan as an
14 defined number of interrupts per fan revolution, which
17 - pulses-per-revolution : define the tachometer pulses per fan revolution as
22 fan0: pwm-fan {
23 compatible = "pwm-fan";
50 fan0: pwm-fan {
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| D | max6650.txt | 1 Bindings for MAX6651 and MAX6650 I2C fan controllers
11 - maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or
13 - maxim,fan-prescale : Pre-scaling value, as per datasheet [1]. Lower values
16 - maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the
18 This ensures the fan is already running before userspace
22 fan-max6650: max6650@1b {
25 maxim,fan-microvolt = <12000000>;
26 maxim,fan-prescale = <4>;
27 maxim,fan-target-rpm = <1200>;
|
| D | gpio-fan.txt | 1 Bindings for fan connected to GPIO lines
4 - compatible : "gpio-fan"
9 - gpio-fan,speed-map: A mapping of possible fan RPM speeds and the
13 the fan, and a udev event will be fired.
16 min and max states are derived from the speed-map of the fan.
23 compatible = "gpio-fan";
26 gpio-fan,speed-map = <0 0
32 compatible = "gpio-fan";
35 gpio-fan,speed-map = <0 0>,
|
| /Linux-v5.4/Documentation/hwmon/ |
| D | g762.rst | 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
25 set desired fan speed. This only makes sense in closed-loop
26 fan speed control (i.e. when pwm1_enable is set to 2).
29 provide current fan rotation value in RPM as reported by
30 the fan to the device.
33 fan clock divisor. Supported value are 1, 2, 4 and 8.
36 number of pulses per fan revolution. Supported values
40 reports fan failure, i.e. no transition on fan gear pin for
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| D | max31790.rst | 23 PWM outputs. The desired fan speeds (or PWM duty cycles) are written
25 or can be used to modulate the fan's power terminals using an external
28 Tachometer inputs monitor fan tachometer logic outputs for precise (+/-1%)
29 monitoring and control of fan RPM as well as detection of fan failure.
38 fan[1-12]_input RO fan tachometer speed in RPM
39 fan[1-12]_fault RO fan experienced fault
40 fan[1-6]_target RW desired fan speed in RPM
42 pwm[1-6] RW fan target duty cycle (0-255)
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| D | g760a.rst | 19 The GMT G760A Fan Speed PWM Controller is connected directly to a fan
20 and performs closed-loop control of the fan speed.
22 The fan speed is programmed by setting the period via 'pwm1' of two
26 Setting a period of 0 stops the fan; setting the period to 255 sets
27 fan to maximum speed.
29 The measured fan rotation speed returned via 'fan1_input' is derived
31 source and a 2 pulse-per-revolution fan.
34 the G760A chip's status register: Bit 0 is set when the actual fan
35 speed differs more than 20% with respect to the programmed fan speed;
36 bit 1 is set when fan speed is below 1920 RPM.
|
| D | max31785.rst | 19 The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan
20 management with temperature and remote voltage sensing. Various fan control
22 dual tachometer measurements, and fan health monitoring.
25 readings in attributes fan[5-8]_input. By contrast the MAX31785 only exposes
26 the slowest rotor measurement, and does so in the fan[1-4]_input attributes.
38 fan[1-4]_alarm Fan alarm.
39 fan[1-4]_fault Fan fault.
40 fan[1-8]_input Fan RPM. On the MAX31785A, inputs 5-8 correspond to the
42 fan[1-4]_target Fan input target
58 2: Automatic PWM (tach-feedback RPM fan-control)
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| D | nct6775.rst | 100 There are 4 to 5 fan rotation speed sensors, 8 to 15 analog voltage sensors,
102 fan regulation strategies (plus manual fan control mode).
115 NCT6775F, fan readings can be divided by a programmable divider (1, 2, 4, 8,
117 do not have a fan speed divider. The driver sets the most suitable fan divisor
118 itself; specifically, it increases the divider value each time a fan speed
119 reading returns an invalid value, and it reduces it if the fan speed reading
127 The driver supports automatic fan control mode known as Thermal Cruise.
129 predefined temperature range. If the temperature goes out of range, fan
138 - this file stores PWM duty cycle or DC value (fan speed) in range:
143 - this file controls mode of fan/temperature control:
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| D | adm9240.rst | 54 temperature, two fan speeds and chassis intrusion. Measured values can
76 with independent fan speed measurement cycles counting alternating rising
77 edges of the fan tacho inputs.
79 DS1780 measurement cycle is about once per second including fan speed.
81 LM81 measurement cycle is about once per 400ms including fan speed.
95 Two fan tacho inputs are provided, the ADM9240 gates an internal 22.5kHz
100 Automatic fan clock divider
105 - fan clock divider not changed
106 - auto fan clock adjuster enabled for valid fan speed reading
111 - fan clock divider set to max
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| /Linux-v5.4/arch/arm/boot/dts/ |
| D | aspeed-bmc-lenovo-hr855xg2.dts | 337 fan@0 {
339 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
342 fan@1 {
344 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
347 fan@2 {
349 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
352 fan@3 {
354 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
357 fan@4 {
359 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
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| D | aspeed-bmc-lenovo-hr630.dts | 332 fan@0 {
334 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
337 fan@1 {
339 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
342 fan@2 {
344 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
347 fan@3 {
349 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
352 fan@4 {
354 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
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| D | aspeed-bmc-opp-swift.dts | 345 fan@0 {
346 compatible = "pmbus-fan";
349 maxim,fan-rotor-input = "tach";
350 maxim,fan-pwm-freq = <25000>;
351 maxim,fan-no-watchdog;
352 maxim,fan-no-fault-ramp;
353 maxim,fan-ramp = <2>;
354 maxim,fan-fault-pin-mon;
357 fan@1 {
358 compatible = "pmbus-fan";
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| D | aspeed-bmc-microsoft-olympus.dts | 177 fan@0 {
179 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
182 fan@1 {
184 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
187 fan@2 {
189 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
192 fan@3 {
194 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
197 fan@4 {
199 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
[all …]
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