Lines Matching +full:cooling +full:- +full:device

1 // SPDX-License-Identifier: GPL-2.0
8 #define pr_fmt(fmt) "cpuidle cooling: " fmt
12 #include <linux/device.h>
20  * struct cpuidle_cooling_device - data for the idle cooling device
22  * @state: a normalized integer giving the state of the cooling device
30  * cpuidle_cooling_runtime - Running time computation
42  *  running = idle x ((100 / ratio) - 1)
46  *  running = (idle x 100) / ratio - idle
59 	return ((idle_duration_us * 100) / state) - idle_duration_us;  in cpuidle_cooling_runtime()
63  * cpuidle_cooling_get_max_state - Get the maximum state
64  * @cdev  : the thermal cooling device
92  * cpuidle_cooling_get_cur_state - Get the current cooling state
93  * @cdev: the thermal cooling device
97  * cooling device structure, the mapping is 1 <-> 1.
104 	struct cpuidle_cooling_device *idle_cdev = cdev->devdata;  in cpuidle_cooling_get_cur_state()
106 	*state = idle_cdev->state;  in cpuidle_cooling_get_cur_state()
112  * cpuidle_cooling_set_cur_state - Set the current cooling state
113  * @cdev: the thermal cooling device
118  * cooling device. In any case, it updates the internal state for the
119  * cooling device.
126 	struct cpuidle_cooling_device *idle_cdev = cdev->devdata;  in cpuidle_cooling_set_cur_state()
127 	struct idle_inject_device *ii_dev = idle_cdev->ii_dev;  in cpuidle_cooling_set_cur_state()
128 	unsigned long current_state = idle_cdev->state;  in cpuidle_cooling_set_cur_state()
131 	idle_cdev->state = state;  in cpuidle_cooling_set_cur_state()
149  * cpuidle_cooling_ops - thermal cooling device ops
158  * __cpuidle_cooling_register: register the cooling device
160  * @np: a device node structure pointer used for the thermal binding
162  * This function is in charge of allocating the cpuidle cooling device
164  * cooling device to the thermal framework.
175 	struct device *dev;  in __cpuidle_cooling_register()
183 		ret = -ENOMEM;  in __cpuidle_cooling_register()
187 	ii_dev = idle_inject_register(drv->cpumask);  in __cpuidle_cooling_register()
189 		ret = -EINVAL;  in __cpuidle_cooling_register()
193 	of_property_read_u32(np, "duration-us", &idle_duration_us);  in __cpuidle_cooling_register()
194 	of_property_read_u32(np, "exit-latency-us", &latency_us);  in __cpuidle_cooling_register()
199 	idle_cdev->ii_dev = ii_dev;  in __cpuidle_cooling_register()
201 	dev = get_cpu_device(cpumask_first(drv->cpumask));  in __cpuidle_cooling_register()
203 	name = kasprintf(GFP_KERNEL, "idle-%s", dev_name(dev));  in __cpuidle_cooling_register()
205 		ret = -ENOMEM;  in __cpuidle_cooling_register()
234  * cpuidle_cooling_register - Idle cooling device initialization function
237  * This function is in charge of creating a cooling device per cpuidle
249 	for_each_cpu(cpu, drv->cpumask) {  in cpuidle_cooling_register()
253 		cooling_node = of_get_child_by_name(cpu_node, "thermal-idle");  in cpuidle_cooling_register()
258 			pr_debug("'thermal-idle' node not found for cpu%d\n", cpu);  in cpuidle_cooling_register()
267 			pr_err("Failed to register the cpuidle cooling device" \  in cpuidle_cooling_register()