ptp_pch: use helpers function for converting between ns and timespec
use ns_to_timespec64() and timespec64_to_ns() instead of open coding Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -452,7 +452,6 @@ static int ptp_pch_adjtime(struct ptp_clock_info *ptp, s64 delta)
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static int ptp_pch_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
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{
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u64 ns;
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u32 remainder;
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unsigned long flags;
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struct pch_dev *pch_dev = container_of(ptp, struct pch_dev, caps);
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struct pch_ts_regs __iomem *regs = pch_dev->regs;
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@ -461,8 +460,7 @@ static int ptp_pch_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
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ns = pch_systime_read(regs);
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spin_unlock_irqrestore(&pch_dev->register_lock, flags);
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ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
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ts->tv_nsec = remainder;
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*ts = ns_to_timespec64(ns);
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return 0;
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}
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@ -474,8 +472,7 @@ static int ptp_pch_settime(struct ptp_clock_info *ptp,
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struct pch_dev *pch_dev = container_of(ptp, struct pch_dev, caps);
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struct pch_ts_regs __iomem *regs = pch_dev->regs;
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ns = ts->tv_sec * 1000000000ULL;
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ns += ts->tv_nsec;
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ns = timespec64_to_ns(ts);
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spin_lock_irqsave(&pch_dev->register_lock, flags);
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pch_systime_write(regs, ns);
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