73 	struct wf_fcu_priv *pv = container_of(ref, struct wf_fcu_priv, ref);  in wf_fcu_release()  local
75 	kfree(pv);  in wf_fcu_release()
86 static int wf_fcu_read_reg(struct wf_fcu_priv *pv, int reg,  in wf_fcu_read_reg()  argument
91 	mutex_lock(&pv->lock);  in wf_fcu_read_reg()
96 		nw = i2c_master_send(pv->i2c, buf, 1);  in wf_fcu_read_reg()
109 		nr = i2c_master_recv(pv->i2c, buf, nb);  in wf_fcu_read_reg()
118 	mutex_unlock(&pv->lock);  in wf_fcu_read_reg()
122 static int wf_fcu_write_reg(struct wf_fcu_priv *pv, int reg,  in wf_fcu_write_reg()  argument
133 		nw = i2c_master_send(pv->i2c, buf, nb);  in wf_fcu_write_reg()
147 	struct wf_fcu_priv *pv = fan->fcu_priv;  in wf_fcu_fan_set_rpm()  local
148 	int rc, shift = pv->rpm_shift;  in wf_fcu_fan_set_rpm()
160 	rc = wf_fcu_write_reg(pv, 0x10 + (fan->id * 2), buf, 2);  in wf_fcu_fan_set_rpm()
169 	struct wf_fcu_priv *pv = fan->fcu_priv;  in wf_fcu_fan_get_rpm()  local
170 	int rc, reg_base, shift = pv->rpm_shift;  in wf_fcu_fan_get_rpm()
175 	rc = wf_fcu_read_reg(pv, 0xb, &failure, 1);  in wf_fcu_fan_get_rpm()
180 	rc = wf_fcu_read_reg(pv, 0xd, &active, 1);  in wf_fcu_fan_get_rpm()
192 	rc = wf_fcu_read_reg(pv, reg_base + (fan->id * 2), buf, 2);  in wf_fcu_fan_get_rpm()
204 	struct wf_fcu_priv *pv = fan->fcu_priv;  in wf_fcu_fan_set_pwm()  local
217 	rc = wf_fcu_write_reg(pv, 0x30 + (fan->id * 2), buf, 1);  in wf_fcu_fan_set_pwm()
226 	struct wf_fcu_priv *pv = fan->fcu_priv;  in wf_fcu_fan_get_pwm()  local
232 	rc = wf_fcu_read_reg(pv, 0x2b, &failure, 1);  in wf_fcu_fan_get_pwm()
237 	rc = wf_fcu_read_reg(pv, 0x2d, &active, 1);  in wf_fcu_fan_get_pwm()
243 	rc = wf_fcu_read_reg(pv, 0x30 + (fan->id * 2), buf, 1);  in wf_fcu_fan_get_pwm()
321 	struct wf_fcu_priv *pv = fan->fcu_priv;  in wf_fcu_get_rpmfan_minmax()  local
326 	fan->min = 2400 >> pv->rpm_shift;  in wf_fcu_get_rpmfan_minmax()
327 	fan->max = 56000 >> pv->rpm_shift;  in wf_fcu_get_rpmfan_minmax()
361 static void wf_fcu_add_fan(struct wf_fcu_priv *pv, const char *name,  in wf_fcu_add_fan()  argument
369 	fan->fcu_priv = pv;  in wf_fcu_add_fan()
396 	list_add(&fan->link, &pv->fan_list);  in wf_fcu_add_fan()
397 	kref_get(&pv->ref);  in wf_fcu_add_fan()
400 static void wf_fcu_lookup_fans(struct wf_fcu_priv *pv)  in wf_fcu_lookup_fans()  argument
427 	struct device_node *np, *fcu = pv->i2c->dev.of_node;  in wf_fcu_lookup_fans()
474 			wf_fcu_add_fan(pv, name, type, id);  in wf_fcu_lookup_fans()
480 static void wf_fcu_default_fans(struct wf_fcu_priv *pv)  in wf_fcu_default_fans()  argument
486 	wf_fcu_add_fan(pv, "backside-fan",	FCU_FAN_PWM, 1);  in wf_fcu_default_fans()
487 	wf_fcu_add_fan(pv, "drive-bay-fan",	FCU_FAN_RPM, 2);  in wf_fcu_default_fans()
488 	wf_fcu_add_fan(pv, "slots-fan",		FCU_FAN_PWM, 2);  in wf_fcu_default_fans()
489 	wf_fcu_add_fan(pv, "cpu-front-fan-0",	FCU_FAN_RPM, 3);  in wf_fcu_default_fans()
490 	wf_fcu_add_fan(pv, "cpu-rear-fan-0",	FCU_FAN_RPM, 4);  in wf_fcu_default_fans()
491 	wf_fcu_add_fan(pv, "cpu-front-fan-1",	FCU_FAN_RPM, 5);  in wf_fcu_default_fans()
492 	wf_fcu_add_fan(pv, "cpu-rear-fan-1",	FCU_FAN_RPM, 6);  in wf_fcu_default_fans()
495 static int wf_fcu_init_chip(struct wf_fcu_priv *pv)  in wf_fcu_init_chip()  argument
500 	rc = wf_fcu_write_reg(pv, 0xe, &buf, 1);  in wf_fcu_init_chip()
503 	rc = wf_fcu_write_reg(pv, 0x2e, &buf, 1);  in wf_fcu_init_chip()
506 	rc = wf_fcu_read_reg(pv, 0, &buf, 1);  in wf_fcu_init_chip()
509 	pv->rpm_shift = (buf == 1) ? 2 : 3;  in wf_fcu_init_chip()
512 		 pv->rpm_shift);  in wf_fcu_init_chip()
520 	struct wf_fcu_priv *pv;  in wf_fcu_probe()  local
522 	pv = kzalloc(sizeof(*pv), GFP_KERNEL);  in wf_fcu_probe()
523 	if (!pv)  in wf_fcu_probe()
526 	kref_init(&pv->ref);  in wf_fcu_probe()
527 	mutex_init(&pv->lock);  in wf_fcu_probe()
528 	INIT_LIST_HEAD(&pv->fan_list);  in wf_fcu_probe()
529 	pv->i2c = client;  in wf_fcu_probe()
535 	if (wf_fcu_init_chip(pv)) {  in wf_fcu_probe()
537 		kfree(pv);  in wf_fcu_probe()
542 	wf_fcu_lookup_fans(pv);  in wf_fcu_probe()
548 	if (list_empty(&pv->fan_list))  in wf_fcu_probe()
549 		wf_fcu_default_fans(pv);  in wf_fcu_probe()
552 	if (list_empty(&pv->fan_list)) {  in wf_fcu_probe()
554 		kfree(pv);  in wf_fcu_probe()
558 	dev_set_drvdata(&client->dev, pv);  in wf_fcu_probe()
565 	struct wf_fcu_priv *pv = dev_get_drvdata(&client->dev);  in wf_fcu_remove()  local
568 	while (!list_empty(&pv->fan_list)) {  in wf_fcu_remove()
569 		fan = list_first_entry(&pv->fan_list, struct wf_fcu_fan, link);  in wf_fcu_remove()
573 	kref_put(&pv->ref, wf_fcu_release);  in wf_fcu_remove()