From: Arnd Bergmann <arnd@arndb.de>
To: Rich Felker <dalias@libc.org>
Cc: Baolin Wang <baolin.wang@linaro.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-sh@vger.kernel.org, broonie@kernel.org,
Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] sh: remove unused rtc_sh_get/set_time infrastructure
Date: Fri, 20 Apr 2018 17:48:55 +0200 [thread overview]
Message-ID: <20180420154933.3235131-3-arnd@arndb.de> (raw)
In-Reply-To: <20180420154933.3235131-1-arnd@arndb.de>
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>
---
arch/sh/include/asm/rtc.h | 2 --
arch/sh/kernel/time.c | 69 -----------------------------------------------
2 files changed, 71 deletions(-)
diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index c63555ee1255..fe55fbb181aa 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -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)
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index fcd5e41977d1..eb0a91270499 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -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)
--
2.9.0
next prev parent reply other threads:[~2018-04-20 15:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-20 15:48 [PATCH 1/4] sh: dreamcast: rtc: push down rtc class ops into driver Arnd Bergmann
2018-04-20 15:48 ` [PATCH 2/4] sh: sh03: " Arnd Bergmann
2018-04-20 15:48 ` Arnd Bergmann [this message]
2018-04-20 15:48 ` [PATCH 4/4] sh: remove board_time_init() callback Arnd Bergmann
2018-04-20 21:51 ` Arnd Bergmann
2018-04-20 21:57 ` Rich Felker
2018-04-22 6:30 ` kbuild test robot
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