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pch_gbe: scale time stamps to nanoseconds

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This patch fixes the helper functions that give the transmit and
receive time stamps to return nanoseconds, instead of arbitrary clock
ticks.

[ RC - Rebased Takahiro's changes and wrote a commit message
  explaining the changes. ]

Signed-off-by: Takahiro Shimizu <[email protected]>
Signed-off-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Takahiro Shimizu 2012-04-20 18:50:28 +00:00 • committed by David S. Miller
commit d50566c727
2 changed files with 2 additions and 4 deletions
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2
drivers/ptp/ptp_pch.c
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@ -261,6 +261,7 @@ u64 pch_rx_snap_read(struct pci_dev *pdev)
ns = ((u64) hi) << 32;
ns |= lo;
ns <<= TICKS_NS_SHIFT;
return ns;
}
@ -277,6 +278,7 @@ u64 pch_tx_snap_read(struct pci_dev *pdev)
ns = ((u64) hi) << 32;
ns |= lo;
ns <<= TICKS_NS_SHIFT;
return ns;
}