drivers/thermal/da9062-thermal.c

3  * Thermal device driver for DA9062 and DA9061
11  * implementation of the thermal driver will include a .notify() function
27 #include <linux/thermal.h>
61 	struct da9062_thermal *thermal = container_of(work,  in da9062_thermal_poll_on()  local
69 	ret = regmap_write(thermal->hw->regmap,  in da9062_thermal_poll_on()
73 		dev_err(thermal->dev,  in da9062_thermal_poll_on()
82 	ret = regmap_read(thermal->hw->regmap,  in da9062_thermal_poll_on()
86 		dev_err(thermal->dev,  in da9062_thermal_poll_on()
92 		mutex_lock(&thermal->lock);  in da9062_thermal_poll_on()
93 		thermal->temperature = DA9062_MILLI_CELSIUS(125);  in da9062_thermal_poll_on()
94 		mutex_unlock(&thermal->lock);  in da9062_thermal_poll_on()
95 		thermal_zone_device_update(thermal->zone,  in da9062_thermal_poll_on()
98 		delay = msecs_to_jiffies(thermal->zone->passive_delay);  in da9062_thermal_poll_on()
99 		queue_delayed_work(system_freezable_wq, &thermal->work, delay);  in da9062_thermal_poll_on()
103 	mutex_lock(&thermal->lock);  in da9062_thermal_poll_on()
104 	thermal->temperature = DA9062_MILLI_CELSIUS(0);  in da9062_thermal_poll_on()
105 	mutex_unlock(&thermal->lock);  in da9062_thermal_poll_on()
106 	thermal_zone_device_update(thermal->zone,  in da9062_thermal_poll_on()
110 	enable_irq(thermal->irq);  in da9062_thermal_poll_on()
115 	struct da9062_thermal *thermal = data;  in da9062_thermal_irq_handler()  local
117 	disable_irq_nosync(thermal->irq);  in da9062_thermal_irq_handler()
118 	queue_delayed_work(system_freezable_wq, &thermal->work, 0);  in da9062_thermal_irq_handler()
127 	struct da9062_thermal *thermal = z->devdata;  in da9062_thermal_get_trip_type()  local
134 		dev_err(thermal->dev,  in da9062_thermal_get_trip_type()
146 	struct da9062_thermal *thermal = z->devdata;  in da9062_thermal_get_trip_temp()  local
153 		dev_err(thermal->dev,  in da9062_thermal_get_trip_temp()
164 	struct da9062_thermal *thermal = z->devdata;  in da9062_thermal_get_temp()  local
166 	mutex_lock(&thermal->lock);  in da9062_thermal_get_temp()
167 	*temp = thermal->temperature;  in da9062_thermal_get_temp()
168 	mutex_unlock(&thermal->lock);  in da9062_thermal_get_temp()
180 	.name = "da9062-thermal",
184 	{ .compatible = "dlg,da9062-thermal", .data = &da9062_config },
193 	struct da9062_thermal *thermal;  in da9062_thermal_probe()  local
217 	thermal = devm_kzalloc(&pdev->dev, sizeof(struct da9062_thermal),  in da9062_thermal_probe()
219 	if (!thermal) {  in da9062_thermal_probe()
224 	thermal->config = match->data;  in da9062_thermal_probe()
225 	thermal->hw = chip;  in da9062_thermal_probe()
226 	thermal->dev = &pdev->dev;  in da9062_thermal_probe()
228 	INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);  in da9062_thermal_probe()
229 	mutex_init(&thermal->lock);  in da9062_thermal_probe()
231 	thermal->zone = thermal_zone_device_register(thermal->config->name,  in da9062_thermal_probe()
232 					1, 0, thermal,  in da9062_thermal_probe()
235 	if (IS_ERR(thermal->zone)) {  in da9062_thermal_probe()
236 		dev_err(&pdev->dev, "Cannot register thermal zone device\n");  in da9062_thermal_probe()
237 		ret = PTR_ERR(thermal->zone);  in da9062_thermal_probe()
240 	ret = thermal_zone_device_enable(thermal->zone);  in da9062_thermal_probe()
242 		dev_err(&pdev->dev, "Cannot enable thermal zone device\n");  in da9062_thermal_probe()
248 		thermal->zone->passive_delay);  in da9062_thermal_probe()
250 	ret = platform_get_irq_byname(pdev, "THERMAL");  in da9062_thermal_probe()
255 	thermal->irq = ret;  in da9062_thermal_probe()
257 	ret = request_threaded_irq(thermal->irq, NULL,  in da9062_thermal_probe()
260 				   "THERMAL", thermal);  in da9062_thermal_probe()
263 			"Failed to request thermal device IRQ.\n");  in da9062_thermal_probe()
267 	platform_set_drvdata(pdev, thermal);  in da9062_thermal_probe()
271 	thermal_zone_device_unregister(thermal->zone);  in da9062_thermal_probe()
278 	struct	da9062_thermal *thermal = platform_get_drvdata(pdev);  in da9062_thermal_remove()  local
280 	free_irq(thermal->irq, thermal);  in da9062_thermal_remove()
281 	cancel_delayed_work_sync(&thermal->work);  in da9062_thermal_remove()
282 	thermal_zone_device_unregister(thermal->zone);  in da9062_thermal_remove()
290 		.name	= "da9062-thermal",
298 MODULE_DESCRIPTION("Thermal TJUNC device driver for Dialog DA9062 and DA9061");
300 MODULE_ALIAS("platform:da9062-thermal");