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 <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
bool "PTP Hardware Clock (PHC)"
default n
depends on IGB
- select PPS
select PTP_1588_CLOCK
---help---
Say Y here if you want to use PTP Hardware Clock (PHC) in the
bool "PTP Clock Support"
default n
depends on IXGBE
- select PPS
select PTP_1588_CLOCK
---help---
Say Y here if you want support for 1588 Timestamping with a
config PCH_PTP
bool "PCH PTP clock support"
default n
- select PPS
select PTP_1588_CLOCK
select PTP_1588_CLOCK_PCH
---help---
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