pps: add parallel port PPS signal generator

Add PPS signal generator which utilizes STROBE pin of a parallel port to
send PPS signals.  It uses parport abstraction layer and hrtimers to
precisely control the signal.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/pps/Kconfig b/drivers/pps/Kconfig
index 0ad5ff38bfec..f0d3376b58ba 100644
--- a/drivers/pps/Kconfig
+++ b/drivers/pps/Kconfig
@@ -41,4 +41,6 @@ config NTP_PPS
 
 source drivers/pps/clients/Kconfig
 
+source drivers/pps/generators/Kconfig
+
 endmenu