leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sh: remove unused rtc_sh_get/set_time infrastructure

Browse Source 
All platforms are now converted to RTC drivers, so this has become
obsolete. The board_time_init() callback still has one caller, but
could otherwise also get killed.

This removes one more usage of the deprecated timespec structure,
which overflows in y2038.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2018-01-24 16:18:50 +01:00
parent 09e81263e5
commit 07df7800c6
2 changed files with 0 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/sh/include/asm/rtc.h
View File

@ -4,8 +4,6 @@
void time_init(void);
extern void (*board_time_init)(void);
extern void (*rtc_sh_get_time)(struct timespec *);
extern int (*rtc_sh_set_time)(const time_t);
#define RTC_CAP_4_DIGIT_YEAR (1 << 0)

69
arch/sh/kernel/time.c
View File

@ -22,75 +22,6 @@
#include <asm/clock.h>
#include <asm/rtc.h>
/* Dummy RTC ops */
static void null_rtc_get_time(struct timespec *tv)
{
tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
tv->tv_nsec = 0;
}
static int null_rtc_set_time(const time_t secs)
{
return 0;
}
void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
void read_persistent_clock(struct timespec *ts)
{
rtc_sh_get_time(ts);
}
#ifdef CONFIG_GENERIC_CMOS_UPDATE
int update_persistent_clock(struct timespec now)
{
return rtc_sh_set_time(now.tv_sec);
}
#endif
static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
{
struct timespec tv;
rtc_sh_get_time(&tv);
rtc_time_to_tm(tv.tv_sec, tm);
return 0;
}
static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
{
unsigned long secs;
rtc_tm_to_time(tm, &secs);
if ((rtc_sh_set_time == null_rtc_set_time) ||
(rtc_sh_set_time(secs) < 0))
return -EOPNOTSUPP;
return 0;
}
static const struct rtc_class_ops rtc_generic_ops = {
.read_time = rtc_generic_get_time,
.set_time = rtc_generic_set_time,
};
static int __init rtc_generic_init(void)
{
struct platform_device *pdev;
if (rtc_sh_get_time == null_rtc_get_time)
return -ENODEV;
pdev = platform_device_register_data(NULL, "rtc-generic", -1,
&rtc_generic_ops,
sizeof(rtc_generic_ops));
return PTR_ERR_OR_ZERO(pdev);
}
device_initcall(rtc_generic_init);
void (*board_time_init)(void);
static void __init sh_late_time_init(void)