Age | Commit message (Collapse) | Author | |
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2012-12-06 | ptp: update adjfreq callback description | Jacob Keller | |
commit 87f4d7c1d36f44b0822053b7e5dedc31fdd0ab99 upstream. This patch updates the adjfreq callback description to include a note that the delta in ppb is always relative to the base frequency, and not to the current frequency of the hardware clock. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> CC: Richard Cochran <richard.cochran@gmail.com> CC: John Stultz <john.stultz@linaro.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> | |||
2011-05-23 | ptp: Added a brand new class driver for ptp clocks. | Richard Cochran | |
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> |