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ptp: ixp46x: use helpers for converting ns to timespec

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Convert the driver to use ns_to_timespec64() and timespec64_to_ns()
instead of open coding the same logic.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kefeng Wang 2016-01-28 10:27:19 +08:00 committed by David S. Miller
parent 21603fc45b
commit b83ef507d9
1 changed files with 2 additions and 5 deletions
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7
drivers/ptp/ptp_ixp46x.c
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@ -178,7 +178,6 @@ static int ptp_ixp_adjtime(struct ptp_clock_info *ptp, s64 delta)
static int ptp_ixp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) static int ptp_ixp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
{ {
u64 ns; u64 ns;
u32 remainder;
unsigned long flags; unsigned long flags;
struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps); struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps);
struct ixp46x_ts_regs *regs = ixp_clock->regs; struct ixp46x_ts_regs *regs = ixp_clock->regs;
@ -189,8 +188,7 @@ static int ptp_ixp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
spin_unlock_irqrestore(&register_lock, flags); spin_unlock_irqrestore(&register_lock, flags);
ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder); *ts = ns_to_timespec64(ns);
ts->tv_nsec = remainder;
return 0; return 0;
} }
@ -202,8 +200,7 @@ static int ptp_ixp_settime(struct ptp_clock_info *ptp,
struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps); struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps);
struct ixp46x_ts_regs *regs = ixp_clock->regs; struct ixp46x_ts_regs *regs = ixp_clock->regs;
ns = ts->tv_sec * 1000000000ULL; ns = timespec64_to_ns(ts);
ns += ts->tv_nsec;
spin_lock_irqsave(&register_lock, flags); spin_lock_irqsave(&register_lock, flags);