3  *  thermal_hwmon.c - Generic Thermal Management hwmon support.
15 #include <linux/hwmon.h>
21 /* hwmon sys I/F */
22 /* thermal zone devices with the same type share one hwmon device */
40 	struct thermal_hwmon_attr temp_input;	/* hwmon sys attr */
41 	struct thermal_hwmon_attr temp_crit;	/* hwmon sys attr */
91 	struct thermal_hwmon_device *hwmon;  in thermal_hwmon_lookup_by_type()  local
95 	list_for_each_entry(hwmon, &thermal_hwmon_list, node) {  in thermal_hwmon_lookup_by_type()
98 		if (!strcmp(hwmon->type, type)) {  in thermal_hwmon_lookup_by_type()
100 			return hwmon;  in thermal_hwmon_lookup_by_type()
110 thermal_hwmon_lookup_temp(const struct thermal_hwmon_device *hwmon,  in thermal_hwmon_lookup_temp()  argument
116 	list_for_each_entry(temp, &hwmon->tz_list, hwmon_node)  in thermal_hwmon_lookup_temp()
134 	struct thermal_hwmon_device *hwmon;  in thermal_add_hwmon_sysfs()  local
139 	hwmon = thermal_hwmon_lookup_by_type(tz);  in thermal_add_hwmon_sysfs()
140 	if (hwmon) {  in thermal_add_hwmon_sysfs()
145 	hwmon = kzalloc(sizeof(*hwmon), GFP_KERNEL);  in thermal_add_hwmon_sysfs()
146 	if (!hwmon)  in thermal_add_hwmon_sysfs()
149 	INIT_LIST_HEAD(&hwmon->tz_list);  in thermal_add_hwmon_sysfs()
150 	strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH);  in thermal_add_hwmon_sysfs()
151 	strreplace(hwmon->type, '-', '_');  in thermal_add_hwmon_sysfs()
152 	hwmon->device = hwmon_device_register_with_info(&tz->device, hwmon->type,  in thermal_add_hwmon_sysfs()
153 							hwmon, NULL, NULL);  in thermal_add_hwmon_sysfs()
154 	if (IS_ERR(hwmon->device)) {  in thermal_add_hwmon_sysfs()
155 		result = PTR_ERR(hwmon->device);  in thermal_add_hwmon_sysfs()
167 	hwmon->count++;  in thermal_add_hwmon_sysfs()
170 		 "temp%d_input", hwmon->count);  in thermal_add_hwmon_sysfs()
175 	result = device_create_file(hwmon->device, &temp->temp_input.attr);  in thermal_add_hwmon_sysfs()
182 				"temp%d_crit", hwmon->count);  in thermal_add_hwmon_sysfs()
187 		result = device_create_file(hwmon->device,  in thermal_add_hwmon_sysfs()
195 		list_add_tail(&hwmon->node, &thermal_hwmon_list);  in thermal_add_hwmon_sysfs()
196 	list_add_tail(&temp->hwmon_node, &hwmon->tz_list);  in thermal_add_hwmon_sysfs()
202 	device_remove_file(hwmon->device, &temp->temp_input.attr);  in thermal_add_hwmon_sysfs()
207 		hwmon_device_unregister(hwmon->device);  in thermal_add_hwmon_sysfs()
210 		kfree(hwmon);  in thermal_add_hwmon_sysfs()
218 	struct thermal_hwmon_device *hwmon;  in thermal_remove_hwmon_sysfs()  local
221 	hwmon = thermal_hwmon_lookup_by_type(tz);  in thermal_remove_hwmon_sysfs()
222 	if (unlikely(!hwmon)) {  in thermal_remove_hwmon_sysfs()
224 		dev_dbg(&tz->device, "hwmon device lookup failed!\n");  in thermal_remove_hwmon_sysfs()
228 	temp = thermal_hwmon_lookup_temp(hwmon, tz);  in thermal_remove_hwmon_sysfs()
235 	device_remove_file(hwmon->device, &temp->temp_input.attr);  in thermal_remove_hwmon_sysfs()
237 		device_remove_file(hwmon->device, &temp->temp_crit.attr);  in thermal_remove_hwmon_sysfs()
242 	if (!list_empty(&hwmon->tz_list)) {  in thermal_remove_hwmon_sysfs()
246 	list_del(&hwmon->node);  in thermal_remove_hwmon_sysfs()
249 	hwmon_device_unregister(hwmon->device);  in thermal_remove_hwmon_sysfs()
250 	kfree(hwmon);  in thermal_remove_hwmon_sysfs()