Commit 59e16961 authored by Richard Cochran's avatar Richard Cochran Committed by David S. Miller
Browse files

net: fec: convert to timecounter adjtime.

This patch changes the driver to use the new and improved method
for adjusting the offset of a timecounter.

Compile tested only.
Signed-off-by: default avatarRichard Cochran <>
Signed-off-by: default avatarDavid S. Miller <>
parent 2e5601f9
......@@ -374,23 +374,9 @@ static int fec_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
struct fec_enet_private *fep =
container_of(ptp, struct fec_enet_private, ptp_caps);
unsigned long flags;
u64 now;
u32 counter;
spin_lock_irqsave(&fep->tmreg_lock, flags);
now = timecounter_read(&fep->tc);
now += delta;
/* Get the timer value based on adjusted timestamp.
* Update the counter with the masked value.
counter = now & fep->cc.mask;
writel(counter, fep->hwp + FEC_ATIME);
/* reset the timecounter */
timecounter_init(&fep->tc, &fep->cc, now);
timecounter_adjtime(&fep->tc, delta);
spin_unlock_irqrestore(&fep->tmreg_lock, flags);
return 0;
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