1 // SPDX-License-Identifier: GPL-2.0
3  *  R-Car THS/TSC thermal sensor driver
101 	list_for_each_entry(pos, &common->head, list)
104 #define rcar_zone_to_priv(zone)		((zone)->devdata)
105 #define rcar_priv_to_dev(priv)		((priv)->common->dev)
106 #define rcar_has_irq_support(priv)	((priv)->common->base)
107 #define rcar_id_to_shift(priv)		((priv)->id * 8)
111 		.compatible = "renesas,rcar-thermal",
115 		.compatible = "renesas,rcar-gen2-thermal",
119 		.compatible = "renesas,thermal-r8a774c0",
123 		.compatible = "renesas,thermal-r8a77970",
127 		.compatible = "renesas,thermal-r8a77990",
131 		.compatible = "renesas,thermal-r8a77995",
146 	return ioread32(common->base + reg);  in _rcar_thermal_common_read()
154 	iowrite32(data, common->base + reg);  in _rcar_thermal_common_write()
164 	val = ioread32(common->base + reg);  in _rcar_thermal_common_bset()
167 	iowrite32(val, common->base + reg);  in _rcar_thermal_common_bset()
173 	return ioread32(priv->base + reg);  in _rcar_thermal_read()
180 	iowrite32(data, priv->base + reg);  in _rcar_thermal_write()
189 	val = ioread32(priv->base + reg);  in _rcar_thermal_bset()
192 	iowrite32(val, priv->base + reg);  in _rcar_thermal_bset()
201 	int old, new, ctemp = -EINVAL;  in rcar_thermal_update_temp()
204 	mutex_lock(&priv->lock);  in rcar_thermal_update_temp()
238 		if (priv->chip->has_filonoff)  in rcar_thermal_update_temp()
243 		rcar_thermal_write(priv, INTCTRL, (((ctemp - 0) << 8) |  in rcar_thermal_update_temp()
244 						   ((ctemp - 1) << 0)));  in rcar_thermal_update_temp()
248 	mutex_unlock(&priv->lock);  in rcar_thermal_update_temp()
262 	/* Guaranteed operating range is -45C to 125C. */  in rcar_thermal_get_current_temp()
264 	if (priv->chip->ctemp_bands == 1)  in rcar_thermal_get_current_temp()
265 		*temp = MCELSIUS((ctemp * 5) - 65);  in rcar_thermal_get_current_temp()
267 		*temp = MCELSIUS(((ctemp * 55) - 720) / 10);  in rcar_thermal_get_current_temp()
269 		*temp = MCELSIUS((ctemp * 5) - 60);  in rcar_thermal_get_current_temp()
293 		dev_err(dev, "rcar driver trip error\n");  in rcar_thermal_get_trip_type()
294 		return -EINVAL;  in rcar_thermal_get_trip_type()
312 		dev_err(dev, "rcar driver trip error\n");  in rcar_thermal_get_trip_temp()
313 		return -EINVAL;  in rcar_thermal_get_trip_temp()
336 	struct rcar_thermal_common *common = priv->common;  in _rcar_thermal_irq_ctrl()
343 	spin_lock_irqsave(&common->lock, flags);  in _rcar_thermal_irq_ctrl()
347 	spin_unlock_irqrestore(&common->lock, flags);  in _rcar_thermal_irq_ctrl()
363 	thermal_zone_device_update(priv->zone, THERMAL_EVENT_UNSPECIFIED);  in rcar_thermal_work()
374 			priv->id,  in rcar_thermal_had_changed()
388 	spin_lock(&common->lock);  in rcar_thermal_irq()
394 	spin_unlock(&common->lock);  in rcar_thermal_irq()
404 			queue_delayed_work(system_freezable_wq, &priv->work,  in rcar_thermal_irq()
418 	struct device *dev = &pdev->dev;  in rcar_thermal_remove()
423 		cancel_delayed_work_sync(&priv->work);  in rcar_thermal_remove()
424 		if (priv->chip->use_of_thermal)  in rcar_thermal_remove()
425 			thermal_remove_hwmon_sysfs(priv->zone);  in rcar_thermal_remove()
427 			thermal_zone_device_unregister(priv->zone);  in rcar_thermal_remove()
440 	struct device *dev = &pdev->dev;  in rcar_thermal_probe()
445 	int ret = -ENODEV;  in rcar_thermal_probe()
451 		return -ENOMEM;  in rcar_thermal_probe()
455 	INIT_LIST_HEAD(&common->head);  in rcar_thermal_probe()
456 	spin_lock_init(&common->lock);  in rcar_thermal_probe()
457 	common->dev = dev;  in rcar_thermal_probe()
462 	for (i = 0; i < chip->nirqs; i++) {  in rcar_thermal_probe()
466 		if (ret < 0 && ret != -ENXIO)  in rcar_thermal_probe()
473 		if (!common->base) {  in rcar_thermal_probe()
481 			common->base = devm_ioremap_resource(dev, res);  in rcar_thermal_probe()
482 			if (IS_ERR(common->base)) {  in rcar_thermal_probe()
483 				ret = PTR_ERR(common->base);  in rcar_thermal_probe()
498 		if (chip->irq_per_ch)  in rcar_thermal_probe()
509 			ret = -ENOMEM;  in rcar_thermal_probe()
513 		priv->base = devm_ioremap_resource(dev, res);  in rcar_thermal_probe()
514 		if (IS_ERR(priv->base)) {  in rcar_thermal_probe()
515 			ret = PTR_ERR(priv->base);  in rcar_thermal_probe()
519 		priv->common = common;  in rcar_thermal_probe()
520 		priv->id = i;  in rcar_thermal_probe()
521 		priv->chip = chip;  in rcar_thermal_probe()
522 		mutex_init(&priv->lock);  in rcar_thermal_probe()
523 		INIT_LIST_HEAD(&priv->list);  in rcar_thermal_probe()
524 		INIT_DELAYED_WORK(&priv->work, rcar_thermal_work);  in rcar_thermal_probe()
529 		if (chip->use_of_thermal) {  in rcar_thermal_probe()
530 			priv->zone = devm_thermal_of_zone_register(  in rcar_thermal_probe()
534 			priv->zone = thermal_zone_device_register(  in rcar_thermal_probe()
540 			ret = thermal_zone_device_enable(priv->zone);  in rcar_thermal_probe()
542 				thermal_zone_device_unregister(priv->zone);  in rcar_thermal_probe()
543 				priv->zone = ERR_PTR(ret);  in rcar_thermal_probe()
546 		if (IS_ERR(priv->zone)) {  in rcar_thermal_probe()
547 			dev_err(dev, "can't register thermal zone\n");  in rcar_thermal_probe()
548 			ret = PTR_ERR(priv->zone);  in rcar_thermal_probe()
549 			priv->zone = NULL;  in rcar_thermal_probe()
553 		if (chip->use_of_thermal) {  in rcar_thermal_probe()
558 			priv->zone->tzp->no_hwmon = false;  in rcar_thermal_probe()
559 			ret = thermal_add_hwmon_sysfs(priv->zone);  in rcar_thermal_probe()
566 		list_move_tail(&priv->list, &common->head);  in rcar_thermal_probe()
569 		if (!chip->irq_per_ch)  in rcar_thermal_probe()
573 	if (common->base && enr_bits)  in rcar_thermal_probe()
590 	struct rcar_thermal_priv *priv = list_first_entry(&common->head,  in rcar_thermal_suspend()
593 	if (priv->chip->needs_suspend_resume) {  in rcar_thermal_suspend()
605 	struct rcar_thermal_priv *priv = list_first_entry(&common->head,  in rcar_thermal_resume()
609 	if (priv->chip->needs_suspend_resume) {  in rcar_thermal_resume()
636 MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver");