1 // SPDX-License-Identifier: GPL-2.0-only
57 	"cpu-rear-fan-0",
58 	"cpu-rear-fan-1",
59 	"cpu-front-fan-0",
60 	"cpu-front-fan-1",
61 	"cpu-pump-0",
62 	"cpu-pump-1",
67 #define CPU_FANS_REQD		(NR_CPU_FANS - 2)
74 /* Scale factor for fan speed, *100 */
117 #define LOW_OVER_CLEAR		((-10) << 16)
139 		tmax = fvt->maxtemp << 16;  in create_cpu_loop()
153 		return -EINVAL;  in create_cpu_loop()
158 	 * Darwin has a minimum fan speed of 1000 rpm for the 4-way and  in create_cpu_loop()
159 	 * 515 for the 2-way.  That appears to be overkill, so for now,  in create_cpu_loop()
166 	pid.history_len = piddata->history_len;  in create_cpu_loop()
167 	pid.gd = piddata->gd;  in create_cpu_loop()
168 	pid.gp = piddata->gp;  in create_cpu_loop()
169 	pid.gr = piddata->gr / piddata->history_len;  in create_cpu_loop()
170 	pid.pmaxadj = (piddata->max_power << 16) - (piddata->power_adj << 8);  in create_cpu_loop()
171 	pid.ttarget = tmax - (piddata->target_temp_delta << 16);  in create_cpu_loop()
173 	pid.min = main_fan->ops->get_min(main_fan);  in create_cpu_loop()
174 	pid.max = main_fan->ops->get_max(main_fan);  in create_cpu_loop()
189 	/* We max all CPU fans in case of a sensor error. We also do the  in cpu_max_all_fans()
219 	/* We calculate a history of max temperatures and use that for the  in cpu_check_overtemp()
225 	cpu_thist_total -= t_old;  in cpu_check_overtemp()
251 		/* High overtemp -> immediate shutdown */  in cpu_check_overtemp()
280 		err = sr->ops->get_value(sr, &temp);  in cpu_fans_tick()
291 		t_max = max(t_max, temp);  in cpu_fans_tick()
295 		err = sr->ops->get_value(sr, &power);  in cpu_fans_tick()
309 		if (cpu == 0 || sp->last_delta > greatest_delta) {  in cpu_fans_tick()
310 			greatest_delta = sp->last_delta;  in cpu_fans_tick()
319 	if (target < (cpu_last_target - 20))  in cpu_fans_tick()
320 		target = cpu_last_target - 20;  in cpu_fans_tick()
334 		err = ct->ops->set_value(ct, target * cpu_fan_scale[i] / 100);  in cpu_fans_tick()
337 			       "error %d\n", ct->name, err);  in cpu_fans_tick()
358 	int speed;  in backside_fan_tick()  local
366 		backside_param.min = backside_fan->ops->get_min(backside_fan);  in backside_fan_tick()
367 		backside_param.max = backside_fan->ops->get_max(backside_fan);  in backside_fan_tick()
371 	if (--backside_tick > 0)  in backside_fan_tick()
375 	err = u4_temp->ops->get_value(u4_temp, &temp);  in backside_fan_tick()
383 	speed = wf_pid_run(&backside_pid, temp);  in backside_fan_tick()
384 	DBG_LOTS("backside PID temp=%d.%.3d speed=%d\n",  in backside_fan_tick()
385 		 FIX32TOPRINT(temp), speed);  in backside_fan_tick()
387 	err = backside_fan->ops->set_value(backside_fan, speed);  in backside_fan_tick()
408 	int speed;  in drive_bay_fan_tick()  local
416 		drive_bay_prm.min = drive_bay_fan->ops->get_min(drive_bay_fan);  in drive_bay_fan_tick()
417 		drive_bay_prm.max = drive_bay_fan->ops->get_max(drive_bay_fan);  in drive_bay_fan_tick()
421 	if (--drive_bay_tick > 0)  in drive_bay_fan_tick()
425 	err = hd_temp->ops->get_value(hd_temp, &temp);  in drive_bay_fan_tick()
433 	speed = wf_pid_run(&drive_bay_pid, temp);  in drive_bay_fan_tick()
434 	DBG_LOTS("drive_bay PID temp=%d.%.3d speed=%d\n",  in drive_bay_fan_tick()
435 		 FIX32TOPRINT(temp), speed);  in drive_bay_fan_tick()
437 	err = drive_bay_fan->ops->set_value(drive_bay_fan, speed);  in drive_bay_fan_tick()
445 /* This makes the fan speed proportional to the power consumed */
454 	.max		= 3510,
460 	int speed;  in slots_fan_tick()  local
472 	err = slots_power->ops->get_value(slots_power, &power);  in slots_fan_tick()
480 	speed = wf_pid_run(&slots_pid, power);  in slots_fan_tick()
481 	DBG_LOTS("slots PID power=%d.%.3d speed=%d\n",  in slots_fan_tick()
482 		 FIX32TOPRINT(power), speed);  in slots_fan_tick()
484 	err = slots_fan->ops->set_value(slots_fan, speed);  in slots_fan_tick()
560 	if (cpufreq_clamp == NULL && !strcmp(ct->name, "cpufreq-clamp")) {  in pm112_new_control()
566 		if (!strcmp(ct->name, cpu_fan_names[i])) {  in pm112_new_control()
574 		if (!strcmp(ct->name, "backside-fan")) {  in pm112_new_control()
577 		} else if (!strcmp(ct->name, "slots-fan")) {  in pm112_new_control()
580 		} else if (!strcmp(ct->name, "drive-bay-fan")) {  in pm112_new_control()
592 	max_exhaust = cpu_fans[0]->ops->get_max(cpu_fans[0]);  in pm112_new_control()
596 				ct->ops->get_max(ct) * 100 / max_exhaust;  in pm112_new_control()
605 	if (!strncmp(sr->name, "cpu-temp-", 9)) {  in pm112_new_sensor()
606 		i = sr->name[9] - '0';  in pm112_new_sensor()
607 		if (sr->name[10] == 0 && i < NR_CORES &&  in pm112_new_sensor()
611 	} else if (!strncmp(sr->name, "cpu-power-", 10)) {  in pm112_new_sensor()
612 		i = sr->name[10] - '0';  in pm112_new_sensor()
613 		if (sr->name[11] == 0 && i < NR_CORES &&  in pm112_new_sensor()
616 	} else if (!strcmp(sr->name, "hd-temp")) {  in pm112_new_sensor()
619 	} else if (!strcmp(sr->name, "slots-power")) {  in pm112_new_sensor()
622 	} else if (!strcmp(sr->name, "backside-temp")) {  in pm112_new_sensor()
683 		return -ENODEV;  in wf_pm112_init()
690 	printk(KERN_INFO "windfarm: initializing for dual-core desktop G5\n");  in wf_pm112_init()