|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  | #ifdef CONFIG_RTC_INTF_DEV | 
|  |  | 
|  | extern void __init rtc_dev_init(void); | 
|  | extern void rtc_dev_prepare(struct rtc_device *rtc); | 
|  |  | 
|  | #else | 
|  |  | 
|  | static inline void rtc_dev_init(void) | 
|  | { | 
|  | } | 
|  |  | 
|  | static inline void rtc_dev_prepare(struct rtc_device *rtc) | 
|  | { | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_RTC_INTF_PROC | 
|  |  | 
|  | extern void rtc_proc_add_device(struct rtc_device *rtc); | 
|  | extern void rtc_proc_del_device(struct rtc_device *rtc); | 
|  |  | 
|  | #else | 
|  |  | 
|  | static inline void rtc_proc_add_device(struct rtc_device *rtc) | 
|  | { | 
|  | } | 
|  |  | 
|  | static inline void rtc_proc_del_device(struct rtc_device *rtc) | 
|  | { | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_RTC_INTF_SYSFS | 
|  | const struct attribute_group **rtc_get_dev_attribute_groups(void); | 
|  | #else | 
|  | static inline const struct attribute_group **rtc_get_dev_attribute_groups(void) | 
|  | { | 
|  | return NULL; | 
|  | } | 
|  | #endif |