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Commit 80e95f47 authored by YueHaibing's avatar YueHaibing Committed by David S. Miller
Browse files

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: default avatarYueHaibing <yuehaibing@huawei.com>
Acked-by: default avatarRichard Cochran <richardcochran@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 28fb4e59

drivers/ptp/ptp_pch.c

+2 −5
Original line number Diff line number Diff line
@@ -452,7 +452,6 @@ static int ptp_pch_adjtime(struct ptp_clock_info *ptp, s64 delta) 
static int ptp_pch_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)

{

	u64 ns;

	u32 remainder;

	unsigned long flags;

	struct pch_dev *pch_dev = container_of(ptp, struct pch_dev, caps);

	struct pch_ts_regs __iomem *regs = pch_dev->regs;
@@ -461,8 +460,7 @@ static int ptp_pch_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) 
	ns = pch_systime_read(regs);

	spin_unlock_irqrestore(&pch_dev->register_lock, flags);



	ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);

	ts->tv_nsec = remainder;

	*ts = ns_to_timespec64(ns);

	return 0;

}
@@ -474,8 +472,7 @@ static int ptp_pch_settime(struct ptp_clock_info *ptp, 
	struct pch_dev *pch_dev = container_of(ptp, struct pch_dev, caps);

	struct pch_ts_regs __iomem *regs = pch_dev->regs;



	ns = ts->tv_sec * 1000000000ULL;

	ns += ts->tv_nsec;

	ns = timespec64_to_ns(ts);



	spin_lock_irqsave(&pch_dev->register_lock, flags);

	pch_systime_write(regs, ns);