Doug / smarc-fsl-linux-kernel

04 Nov, 2012

1 commit

  • 87f4d7c1d   ptp: update adjfreq callback description ... Browse Code »

    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
    CC: stable@vger.kernel.org [v3.5+]
    CC: Richard Cochran
    CC: John Stultz
    Signed-off-by: Jeff Kirsher
    Signed-off-by: David S. Miller

    Jacob Keller
     

23 Sep, 2012

2 commits

  • de4658467   ptp: clarify the clock_name sysfs attribute ... Browse Code »

    There has been some confusion among PHC driver authors about the
    intended purpose of the clock_name attribute. This patch expands the
    documation in order to clarify how the clock_name field should be
    understood.

    Signed-off-by: Richard Cochran
    Signed-off-by: David S. Miller

    Richard Cochran
     
  • 1ef761582   ptp: link the phc device to its parent device ... Browse Code »

    PTP Hardware Clock devices appear as class devices in sysfs. This patch
    changes the registration API to use the parent device, clarifying the
    clock's relationship to the underlying device.

    Signed-off-by: Richard Cochran
    Acked-by: Ben Hutchings
    Acked-by: Jeff Kirsher
    Signed-off-by: David S. Miller

    Richard Cochran
     

08 Sep, 2012

1 commit

  • 220a60a42   pps/ptp: Allow PHC devices to adjust PPS events for known delay ... Browse Code »

    Initial version by Stuart Hodgson

    Some PHC device drivers may deliver PPS events with a significant
    and variable delay, but still be able to measure precisely what
    that delay is.

    Add a pps_sub_ts() function for subtracting a delay from the
    timestamp(s) in a PPS event, and a PTP event type (PTP_CLOCK_PPSUSR)
    for which the caller provides a complete PPS event.

    Signed-off-by: Ben Hutchings

    Ben Hutchings
     

04 Apr, 2012

1 commit

24 May, 2011

1 commit

  • d94ba80eb   ptp: Added a brand new class driver for ptp clocks. ... Browse Code »

    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
    Acked-by: Arnd Bergmann
    Acked-by: David S. Miller
    Signed-off-by: John Stultz

    Richard Cochran