mc146818-time.h

 1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 * Machine dependent access functions for RTC registers.
 7 */
 8#ifndef __ASM_MC146818_TIME_H
 9#define __ASM_MC146818_TIME_H
10
11#include <linux/mc146818rtc.h>
12#include <linux/time.h>
13
14#ifdef CONFIG_RTC_MC146818_LIB
15static inline time64_t mc146818_get_cmos_time(void)
16{
17	struct rtc_time tm;
18
19	if (mc146818_get_time(&tm, 1000)) {
20		pr_err("Unable to read current time from RTC\n");
21		return 0;
22	}
23
24	return rtc_tm_to_time64(&tm);
25}
26#endif /* CONFIG_RTC_MC146818_LIB */
27
28#endif /* __ASM_MC146818_TIME_H */