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/openbmc/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-amd-daytonax.dts233 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
238 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
243 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
248 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
253 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
258 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
263 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
268 aspeed,fan-tach-ch = /bits/ 8 <0x07>;
273 aspeed,fan-tach-ch = /bits/ 8 <0x08>;
278 aspeed,fan-tach-ch = /bits/ 8 <0x09>;
[all …]
H A Daspeed-bmc-ibm-rainier-4u.dts24 /delete-property/ maxim,fan-dual-tach;
28 /delete-property/ maxim,fan-dual-tach;
32 /delete-property/ maxim,fan-dual-tach;
36 /delete-property/ maxim,fan-dual-tach;
40 /delete-property/ maxim,fan-dual-tach;
44 /delete-property/ maxim,fan-dual-tach;
H A Daspeed-bmc-lenovo-hr855xg2.dts342 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
347 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
352 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
357 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
362 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
367 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
372 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
377 aspeed,fan-tach-ch = /bits/ 8 <0x07>;
382 aspeed,fan-tach-ch = /bits/ 8 <0x08>;
387 aspeed,fan-tach-ch = /bits/ 8 <0x09>;
[all …]
H A Daspeed-bmc-lenovo-hr630.dts337 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
342 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
347 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
352 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
357 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
362 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
367 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
372 aspeed,fan-tach-ch = /bits/ 8 <0x07>;
377 aspeed,fan-tach-ch = /bits/ 8 <0x08>;
382 aspeed,fan-tach-ch = /bits/ 8 <0x09>;
[all …]
H A Daspeed-bmc-microsoft-olympus.dts179 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
184 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
189 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
194 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
199 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
204 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
H A Daspeed-bmc-facebook-wedge40.dts36 aspeed,fan-tach-ch = /bits/ 8 <0x00 0x01>;
41 aspeed,fan-tach-ch = /bits/ 8 <0x02 0x03>;
46 aspeed,fan-tach-ch = /bits/ 8 <0x04 0x05>;
51 aspeed,fan-tach-ch = /bits/ 8 <0x06 0x07>;
H A Daspeed-bmc-vegman-sx20.dts128 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
132 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
136 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
140 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
144 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
148 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
152 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
H A Daspeed-bmc-amd-ethanolx.dts299 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
304 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
309 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
314 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
319 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
324 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
329 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
334 aspeed,fan-tach-ch = /bits/ 8 <0x07>;
H A Daspeed-bmc-vegman-n110.dts127 aspeed,fan-tach-ch = /bits/ 8 <0x00 0x06>;
131 aspeed,fan-tach-ch = /bits/ 8 <0x01 0x08>;
135 aspeed,fan-tach-ch = /bits/ 8 <0x02 0x09>;
139 aspeed,fan-tach-ch = /bits/ 8 <0x03 0x0A>;
143 aspeed,fan-tach-ch = /bits/ 8 <0x04 0x0B>;
147 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
H A Daspeed-bmc-opp-romulus.dts299 aspeed,fan-tach-ch = /bits/ 8 <0x08>;
304 aspeed,fan-tach-ch = /bits/ 8 <0x09>;
309 aspeed,fan-tach-ch = /bits/ 8 <0x0a>;
314 aspeed,fan-tach-ch = /bits/ 8 <0x0b>;
319 aspeed,fan-tach-ch = /bits/ 8 <0x0c>;
324 aspeed,fan-tach-ch = /bits/ 8 <0x0d>;
329 aspeed,fan-tach-ch = /bits/ 8 <0x0e>;
H A Daspeed-bmc-quanta-q71l.dts419 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
424 aspeed,fan-tach-ch = /bits/ 8 <0x01>;
429 aspeed,fan-tach-ch = /bits/ 8 <0x02>;
434 aspeed,fan-tach-ch = /bits/ 8 <0x03>;
439 aspeed,fan-tach-ch = /bits/ 8 <0x04>;
444 aspeed,fan-tach-ch = /bits/ 8 <0x05>;
449 aspeed,fan-tach-ch = /bits/ 8 <0x06>;
454 aspeed,fan-tach-ch = /bits/ 8 <0x07>;
H A Daspeed-bmc-opp-witherspoon.dts369 tach-pulses = <2>;
370 maxim,fan-rotor-input = "tach";
372 maxim,fan-dual-tach;
382 tach-pulses = <2>;
383 maxim,fan-rotor-input = "tach";
385 maxim,fan-dual-tach;
395 tach-pulses = <2>;
396 maxim,fan-rotor-input = "tach";
398 maxim,fan-dual-tach;
408 tach-pulses = <2>;
[all …]
/openbmc/phosphor-mrw-tools/
H A Dgen_fan_zone_yaml.pl60 for my $tach (sort @{$connections->{CONN}})
64 next if (exists $tachs{$tach->{SOURCE}}{$tach->{DEST}});
65 $tachs{$tach->{SOURCE}}{$tach->{DEST}} = 1;
69 my $fru = Util::getEnclosingFru($targets, $tach->{SOURCE});
72 my $sensor = getSensor($tach->{DEST});
76 my $part = $targets->getTargetParent($tach->{SOURCE});
H A Dgen_presence_yaml.pl54 for my $tach (sort @{$connections->{CONN}})
58 next if (exists $tachs{$tach->{SOURCE}}{$tach->{DEST}});
59 $tachs{$tach->{SOURCE}}{$tach->{DEST}} = 1;
61 my $fru = Util::getEnclosingFru($targets, $tach->{SOURCE});
68 my $sensor = getSensor($tach->{DEST});
/openbmc/linux/drivers/gpu/drm/nouveau/nvkm/subdev/therm/
H A Dgt215.c32 u32 tach = nvkm_rd32(device, 0x00e728) & 0x0000ffff; in gt215_therm_fan_sense() local
35 return tach * 60 / 2; in gt215_therm_fan_sense()
43 struct dcb_gpio_func *tach = &therm->fan->tach; in gt215_therm_init() local
49 if (tach->func != DCB_GPIO_UNUSED) { in gt215_therm_init()
51 nvkm_mask(device, 0x00e720, 0x001f0000, tach->line << 16); in gt215_therm_init()
H A Dfan.c130 u64 start, end, tach; in nvkm_therm_fan_sense() local
135 if (therm->fan->tach.func == DCB_GPIO_UNUSED) in nvkm_therm_fan_sense()
143 prev = nvkm_gpio_get(gpio, 0, therm->fan->tach.func, in nvkm_therm_fan_sense()
144 therm->fan->tach.line); in nvkm_therm_fan_sense()
149 cur = nvkm_gpio_get(gpio, 0, therm->fan->tach.func, in nvkm_therm_fan_sense()
150 therm->fan->tach.line); in nvkm_therm_fan_sense()
161 tach = (u64)60000000000ULL; in nvkm_therm_fan_sense()
162 do_div(tach, (end - start)); in nvkm_therm_fan_sense()
163 return tach; in nvkm_therm_fan_sense()
260 &therm->fan->tach); in nvkm_therm_fan_ctor()
[all …]
/openbmc/phosphor-fan-presence/docs/presence/
H A Dmethods.md12 - ["tach"](#tach)
15 ### "tach"
17 Requires an array of `sensors` of each fan tach D-Bus sensor name to be used to
18 determine fan presence. This is the name of the fan tach sensor located under
22 "type": "tach",
51 "type": "tach",
H A DREADME.md16 The `phosphor-fan-presence-tach` application is controlled by a configuration
66 The `phosphor-fan-presence-tach` application then traverses the supported
78 and `phosphor-fan-presence-tach` application terminates preventing the machine
97 The `phosphor-fan-presence-tach` application will search for the config file at
177 "comments": "Also use the tach for presence detection",
178 "type": "tach",
210 The config file is loaded when the `phosphor-fan-presence-tach` application
216 `systemctl kill -s HUP phosphor-fan-presence-tach@0.service`
220 `journalctl -u phosphor-fan-presence-tach@0.service | grep Loading`
/openbmc/linux/Documentation/devicetree/bindings/hwmon/
H A Daspeed-pwm-tacho.txt7 one/two Fan tach inputs.
33 one/two Fan tach inputs.
45 - aspeed,fan-tach-ch : should specify the Fan tach input channel.
47 Fan tach channel 0 and 15 indicating Fan tach channel 15.
48 At least one Fan tach input channel is required.
66 aspeed,fan-tach-ch = /bits/ 8 <0x00>;
71 aspeed,fan-tach-ch = /bits/ 8 <0x01 0x02>;
H A Dnpcm750-pwm-fan.txt30 Each fan subnode must have one PWM channel and at least one Fan tach channel.
40 - fan-tach-ch : specify the Fan tach input channel.
42 the fan tach channel number that used.
44 At least one Fan tach input channel is required
76 fan-tach-ch = /bits/ 8 <0x00 0x01>;
81 fan-tach-ch = /bits/ 8 <0x02 0x03>;
85 fan-tach-ch = /bits/ 8 <0x04>;
/openbmc/linux/drivers/hwmon/
H A Dpwm-fan.c67 struct pwm_fan_tach *tach = dev_id; in pulse_handler() local
69 atomic_inc(&tach->pulses); in pulse_handler()
82 struct pwm_fan_tach *tach = &ctx->tachs[i]; in sample_timer() local
85 pulses = atomic_read(&tach->pulses); in sample_timer()
86 atomic_sub(pulses, &tach->pulses); in sample_timer()
87 tach->rpm = (unsigned int)(pulses * 1000 * 60) / in sample_timer()
88 (tach->pulses_per_revolution * delta); in sample_timer()
575 struct pwm_fan_tach *tach = &ctx->tachs[i]; in pwm_fan_probe() local
578 tach->irq = platform_get_irq(pdev, i); in pwm_fan_probe()
579 if (tach->irq == -EPROBE_DEFER) in pwm_fan_probe()
[all …]
H A Dmax6620.c141 u16 tach[4]; member
155 static int max6620_fan_tach_to_rpm(u8 div, u16 tach) in max6620_fan_tach_to_rpm() argument
157 return (60 * div * MAX6620_CLOCK_FREQ) / (tach * MAX6620_PULSE_PER_REV); in max6620_fan_tach_to_rpm()
184 data->tach[i] = (ret << 3) & 0x7f8; in max6620_update_device()
188 data->tach[i] |= (ret >> 5) & 0x7; in max6620_update_device()
293 if (data->tach[channel] == 0) { in max6620_read()
297 *val = max6620_fan_tach_to_rpm(div, data->tach[channel]); in max6620_read()
328 u16 tach; in max6620_write() local
374 tach = max6620_fan_rpm_to_tach(div, val); in max6620_write()
375 val1 = (tach >> 3) & 0xff; in max6620_write()
[all …]
/openbmc/openbmc/meta-phosphor/recipes-phosphor/fans/
H A Dphosphor-fan_git.bb19 # ${PN}-presence-tach specific configuration
71 SYSTEMD_SERVICE:${PN}-presence-tach += "${TMPL_TACH}"
72 SYSTEMD_LINK:${PN}-presence-tach += "${@compose_list(d, 'FMT_TACH', 'OBMC_CHASSIS_ZERO_ONLY')}"
74 SYSTEMD_LINK:${PN}-presence-tach += "${@bb.utils.contains('PACKAGECONFIG', 'json', \
107 FILES:${PN}-presence-tach = "${bindir}/phosphor-fan-presence-tach"
109 FILES:${PN}-presence-tach += "${@bb.utils.contains('PACKAGECONFIG', 'json', \
133 ${PN}-presence-tach \
140 TMPL_TACH = "phosphor-fan-presence-tach@.service"
141 INSTFMT_TACH = "phosphor-fan-presence-tach@{0}.service"
/openbmc/linux/arch/arm/boot/dts/nuvoton/
H A Dnuvoton-npcm750-evb.dts285 fan-tach-ch = /bits/ 8 <0x00 0x01>;
290 fan-tach-ch = /bits/ 8 <0x02 0x03>;
295 fan-tach-ch = /bits/ 8 <0x04 0x05>;
300 fan-tach-ch = /bits/ 8 <0x06 0x07>;
305 fan-tach-ch = /bits/ 8 <0x08 0x09>;
310 fan-tach-ch = /bits/ 8 <0x0A 0x0B>;
315 fan-tach-ch = /bits/ 8 <0x0C 0x0D>;
320 fan-tach-ch = /bits/ 8 <0x0E 0x0F>;
/openbmc/linux/Documentation/devicetree/bindings/hwmon/pmbus/
H A Dmax31785.txt39 controller. Must be either "tach" for tachometer
47 - tach-pulses : Tachometer pulses per revolution. Valid values are
76 - maxim,fan-dual-tach : Enable dual tachometer functionality
112 tach-pulses = <1>;
118 maxim,fan-rotor-input = "tach";
119 maxim,fan-dual-tach;
132 tach-pulses = <1>;
136 maxim,fan-rotor-input = "tach";

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