tree 7fe40228c5ea2bb77f2892b722d27155df8c1157
parent caebc160ce3f76761cc62ad96ef6d6f30f54e3dd
author Richard Cochran <richardcochran@gmail.com> 1303466588 +0200
committer John Stultz <john.stultz@linaro.org> 1306180860 -0700

ptp: Added a brand new class driver for ptp clocks.

This patch adds an infrastructure for hardware clocks that implement
IEEE 1588, the Precision Time Protocol (PTP). A class driver offers a
registration method to particular hardware clock drivers. Each clock is
presented as a standard POSIX clock.

The ancillary clock features are exposed in two different ways, via
the sysfs and by a character device.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John Stultz <john.stultz@linaro.org>