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

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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>

...

This commit is contained in:

Richard Cochran 2011-04-22 12:03:08 +02:00 • committed by John Stultz

parent caebc160ce

commit d94ba80ebb

16 changed files with 1695 additions and 0 deletions

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2

drivers/Kconfig

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1

drivers/Makefile

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30

drivers/ptp/Kconfig

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6

drivers/ptp/Makefile

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159

drivers/ptp/ptp_chardev.c

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343

drivers/ptp/ptp_clock.c

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92

drivers/ptp/ptp_private.h

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230

drivers/ptp/ptp_sysfs.c

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