xref: /openbmc/linux/drivers/crypto/ccree/cc_pm.h (revision 788b041a)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
3 
4 /* \file cc_pm.h
5  */
6 
7 #ifndef __CC_POWER_MGR_H__
8 #define __CC_POWER_MGR_H__
9 
10 #include "cc_driver.h"
11 
12 #define CC_SUSPEND_TIMEOUT 3000
13 
14 #if defined(CONFIG_PM)
15 
16 extern const struct dev_pm_ops ccree_pm;
17 
18 int cc_pm_init(struct cc_drvdata *drvdata);
19 void cc_pm_go(struct cc_drvdata *drvdata);
20 void cc_pm_fini(struct cc_drvdata *drvdata);
21 int cc_pm_suspend(struct device *dev);
22 int cc_pm_resume(struct device *dev);
23 int cc_pm_get(struct device *dev);
24 void cc_pm_put_suspend(struct device *dev);
25 bool cc_pm_is_dev_suspended(struct device *dev);
26 
27 #else
28 
29 static inline int cc_pm_init(struct cc_drvdata *drvdata)
30 {
31 	return 0;
32 }
33 
34 static inline void cc_pm_go(struct cc_drvdata *drvdata) {}
35 
36 static inline void cc_pm_fini(struct cc_drvdata *drvdata) {}
37 
38 static inline int cc_pm_get(struct device *dev)
39 {
40 	return 0;
41 }
42 
43 static inline void cc_pm_put_suspend(struct device *dev) {}
44 
45 static inline bool cc_pm_is_dev_suspended(struct device *dev)
46 {
47 	/* if PM not supported device is never suspend */
48 	return false;
49 }
50 
51 #endif
52 
53 #endif /*__POWER_MGR_H__*/
54