1 /*
2  * ARM big.LITTLE platform's CPUFreq header file
3  *
4  * Copyright (C) 2013 ARM Ltd.
5  * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
6  *
7  * Copyright (C) 2013 Linaro.
8  * Viresh Kumar <viresh.kumar@linaro.org>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  *
14  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
15  * kind, whether express or implied; without even the implied warranty
16  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  */
19 #ifndef CPUFREQ_ARM_BIG_LITTLE_H
20 #define CPUFREQ_ARM_BIG_LITTLE_H
21 
22 #include <linux/cpufreq.h>
23 #include <linux/device.h>
24 #include <linux/types.h>
25 
26 struct cpufreq_arm_bL_ops {
27 	char name[CPUFREQ_NAME_LEN];
28 
29 	/*
30 	 * This must set opp table for cpu_dev in a similar way as done by
31 	 * dev_pm_opp_of_add_table().
32 	 */
33 	int (*init_opp_table)(const struct cpumask *cpumask);
34 
35 	/* Optional */
36 	int (*get_transition_latency)(struct device *cpu_dev);
37 	void (*free_opp_table)(const struct cpumask *cpumask);
38 };
39 
40 int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops);
41 void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops);
42 
43 #endif /* CPUFREQ_ARM_BIG_LITTLE_H */
44