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ptp: Make PTP_1588_CLOCK select rather than depend on PPS

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PTP hardware clock drivers that select PTP_1588_CLOCK must currently
also select PPS.  For those drivers that don't, the user must enable
PPS, then enable PTP_1588_CLOCK, then the driver.  Simplify things for
developers and users by putting this selection in one place.

Signed-off-by: Ben Hutchings <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Ben Hutchings 2012-10-31 15:32:44 +00:00 • committed by David S. Miller
commit 42a7ccef0a
3 changed files with 1 additions and 7 deletions
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5
drivers/ptp/Kconfig
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@ -4,12 +4,9 @@
menu "PTP clock support"
comment "Enable Device Drivers -> PPS to see the PTP clock options."
depends on PPS=n
config PTP_1588_CLOCK
tristate "PTP clock support"
depends on PPS
select PPS
help
The IEEE 1588 standard defines a method to precisely
synchronize distributed clocks over Ethernet networks. The