1 // SPDX-License-Identifier: GPL-2.0
3  * uniphier_thermal.c - Socionext UniPhier thermal driver
5  * Copyright 2016-2017 Socionext Inc.
17 #include <linux/thermal.h>
73 /* SoC specific thermal sensor data */
90 	struct regmap *map = tdev->regmap;  in uniphier_tm_initialize_sensor()
96 	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,  in uniphier_tm_initialize_sensor()
101 	 * TMODCOEF shows non-zero and PVT refers the value internally.  in uniphier_tm_initialize_sensor()
106 	ret = regmap_read(map, tdev->data->map_base + TMODCOEF, &val);  in uniphier_tm_initialize_sensor()
111 		ret = of_property_read_u32_array(tdev->dev->of_node,  in uniphier_tm_initialize_sensor()
112 						 "socionext,tmod-calibration",  in uniphier_tm_initialize_sensor()
118 		regmap_write(map, tdev->data->tmod_setup_addr,  in uniphier_tm_initialize_sensor()
124 	regmap_write_bits(map, tdev->data->block_base + PVTCTLMODE,  in uniphier_tm_initialize_sensor()
128 	regmap_write_bits(map, tdev->data->block_base + EMONREPEAT,  in uniphier_tm_initialize_sensor()
133 	regmap_write_bits(map, tdev->data->map_base + PVTCTLSEL,  in uniphier_tm_initialize_sensor()
142 	struct regmap *map = tdev->regmap;  in uniphier_tm_set_alert()
145 	regmap_write_bits(map, tdev->data->map_base + SETALERT0 + (ch << 2),  in uniphier_tm_set_alert()
153 	struct regmap *map = tdev->regmap;  in uniphier_tm_enable_sensor()
158 		if (tdev->alert_en[i])  in uniphier_tm_enable_sensor()
162 	regmap_write_bits(map, tdev->data->map_base + PMALERTINTCTL,  in uniphier_tm_enable_sensor()
166 	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,  in uniphier_tm_enable_sensor()
174 	struct regmap *map = tdev->regmap;  in uniphier_tm_disable_sensor()
177 	regmap_write_bits(map, tdev->data->map_base + PMALERTINTCTL,  in uniphier_tm_disable_sensor()
181 	regmap_write_bits(map, tdev->data->block_base + PVTCTLEN,  in uniphier_tm_disable_sensor()
190 	struct regmap *map = tdev->regmap;  in uniphier_tm_get_temp()
194 	ret = regmap_read(map, tdev->data->map_base + TMOD, &temp);  in uniphier_tm_get_temp()
199 	*out_temp = sign_extend32(temp, TMOD_WIDTH - 1) * 1000;  in uniphier_tm_get_temp()
219 	regmap_write_bits(tdev->regmap,  in uniphier_tm_irq_clear()
220 			  tdev->data->map_base + PMALERTINTCTL, mask, bits);  in uniphier_tm_irq_clear()
237 	thermal_zone_device_update(tdev->tz_dev, THERMAL_EVENT_UNSPECIFIED);  in uniphier_tm_alarm_irq_thread()
244 	struct device *dev = &pdev->dev;  in uniphier_tm_probe()
252 		return -ENOMEM;  in uniphier_tm_probe()
253 	tdev->dev = dev;  in uniphier_tm_probe()
255 	tdev->data = of_device_get_match_data(dev);  in uniphier_tm_probe()
256 	if (WARN_ON(!tdev->data))  in uniphier_tm_probe()
257 		return -EINVAL;  in uniphier_tm_probe()
264 	parent = of_get_parent(dev->of_node); /* parent should be syscon node */  in uniphier_tm_probe()
272 	tdev->regmap = regmap;  in uniphier_tm_probe()
282 					0, "thermal", tdev);  in uniphier_tm_probe()
288 	tdev->tz_dev = devm_thermal_of_zone_register(dev, 0, tdev,  in uniphier_tm_probe()
290 	if (IS_ERR(tdev->tz_dev)) {  in uniphier_tm_probe()
292 		return PTR_ERR(tdev->tz_dev);  in uniphier_tm_probe()
296 	for (i = 0; i < thermal_zone_get_num_trips(tdev->tz_dev); i++) {  in uniphier_tm_probe()
299 		ret = thermal_zone_get_trip(tdev->tz_dev, i, &trip);  in uniphier_tm_probe()
307 		tdev->alert_en[i] = true;  in uniphier_tm_probe()
312 		return -EINVAL;  in uniphier_tm_probe()
344 		.compatible = "socionext,uniphier-pxs2-thermal",
348 		.compatible = "socionext,uniphier-ld20-thermal",
352 		.compatible = "socionext,uniphier-pxs3-thermal",
356 		.compatible = "socionext,uniphier-nx1-thermal",
367 		.name = "uniphier-thermal",
374 MODULE_DESCRIPTION("UniPhier thermal driver");