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authorBaolin Wang <baolin.wang@linaro.org>2018-05-07 17:28:28 +0800
committerJames Hogan <jhogan@kernel.org>2018-05-14 23:58:23 +0100
commitf06e7aa47f3cad55c5737eb87280e90e25882d60 (patch)
tree99c12050d21aed0d0e0baa3e50c03ddee56c5f25 /arch/mips/sibyte
parent09adad17191942cac01ccfbb897b976ac8f42c22 (diff)
downloadlinux-f06e7aa47f3cad55c5737eb87280e90e25882d60.tar.bz2
MIPS: Convert update_persistent_clock() to update_persistent_clock64()
Since struct timespec is not y2038 safe on 32bit machines, this patch converts update_persistent_clock() to update_persistent_clock64() using struct timespec64. The rtc_mips_set_time() and rtc_mips_set_mmss() interfaces were using 'unsigned long' type that is not y2038 safe on 32bit machines, moreover there is only one platform implementing rtc_mips_set_time() and two platforms implementing rtc_mips_set_mmss(), so we can just make them each implement update_persistent_clock64() directly, to get that helper out of the common mips code by removing rtc_mips_set_time() and rtc_mips_set_mmss() interfaces. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Huacai Chen <chenhc@lemote.com> Cc: Paul Burton <paul.burton@mips.com> Cc: linux-mips@linux-mips.org Signed-off-by: James Hogan <jhogan@kernel.org>
Diffstat (limited to 'arch/mips/sibyte')
-rw-r--r--arch/mips/sibyte/swarm/rtc_m41t81.c4
-rw-r--r--arch/mips/sibyte/swarm/rtc_xicor1241.c4
-rw-r--r--arch/mips/sibyte/swarm/setup.c8
3 files changed, 9 insertions, 7 deletions
diff --git a/arch/mips/sibyte/swarm/rtc_m41t81.c b/arch/mips/sibyte/swarm/rtc_m41t81.c
index aa27a2226472..4ac8ccdf56bb 100644
--- a/arch/mips/sibyte/swarm/rtc_m41t81.c
+++ b/arch/mips/sibyte/swarm/rtc_m41t81.c
@@ -141,13 +141,13 @@ static int m41t81_write(uint8_t addr, int b)
return 0;
}
-int m41t81_set_time(unsigned long t)
+int m41t81_set_time(time64_t t)
{
struct rtc_time tm;
unsigned long flags;
/* Note we don't care about the century */
- rtc_time_to_tm(t, &tm);
+ rtc_time64_to_tm(t, &tm);
/*
* Note the write order matters as it ensures the correctness.
diff --git a/arch/mips/sibyte/swarm/rtc_xicor1241.c b/arch/mips/sibyte/swarm/rtc_xicor1241.c
index a2121c1345a9..2dcaaa7e3bfa 100644
--- a/arch/mips/sibyte/swarm/rtc_xicor1241.c
+++ b/arch/mips/sibyte/swarm/rtc_xicor1241.c
@@ -109,13 +109,13 @@ static int xicor_write(uint8_t addr, int b)
}
}
-int xicor_set_time(unsigned long t)
+int xicor_set_time(time64_t t)
{
struct rtc_time tm;
int tmp;
unsigned long flags;
- rtc_time_to_tm(t, &tm);
+ rtc_time64_to_tm(t, &tm);
tm.tm_year += 1900;
spin_lock_irqsave(&rtc_lock, flags);
diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c
index 7073940c02bf..152ca71cc2d7 100644
--- a/arch/mips/sibyte/swarm/setup.c
+++ b/arch/mips/sibyte/swarm/setup.c
@@ -57,11 +57,11 @@ extern void sb1250_setup(void);
#endif
extern int xicor_probe(void);
-extern int xicor_set_time(unsigned long);
+extern int xicor_set_time(time64_t);
extern time64_t xicor_get_time(void);
extern int m41t81_probe(void);
-extern int m41t81_set_time(unsigned long);
+extern int m41t81_set_time(time64_t);
extern time64_t m41t81_get_time(void);
const char *get_system_type(void)
@@ -109,8 +109,10 @@ void read_persistent_clock64(struct timespec64 *ts)
ts->tv_nsec = 0;
}
-int rtc_mips_set_time(unsigned long sec)
+int update_persistent_clock64(struct timespec64 now)
{
+ time64_t sec = now.tv_sec;
+
switch (swarm_rtc_type) {
case RTC_XICOR:
return xicor_set_time(sec);