Patchwork [3.5.y.z,extended,stable] Patch "ptp: update adjfreq callback description" has been added to staging queue

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Submitter Herton Ronaldo Krzesinski
Date Dec. 6, 2012, 3:23 a.m.
Message ID <>
Download mbox | patch
Permalink /patch/204103/
State New
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Herton Ronaldo Krzesinski - Dec. 6, 2012, 3:23 a.m.
This is a note to let you know that I have just added a patch titled

    ptp: update adjfreq callback description

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From a28d82ee45f3685e5eb162253cb6b9877551109c Mon Sep 17 00:00:00 2001
From: Jacob Keller <>
Date: Thu, 1 Nov 2012 12:30:16 +0000
Subject: [PATCH] ptp: update adjfreq callback description
X-Extended-Stable: 3.5

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 <>
CC: Richard Cochran <>
CC: John Stultz <>
Signed-off-by: Jeff Kirsher <>
Signed-off-by: David S. Miller <>
Signed-off-by: Herton Ronaldo Krzesinski <>
 include/linux/ptp_clock_kernel.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)



diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index 945704c..00b9e61 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -50,7 +50,8 @@  struct ptp_clock_request {
  * clock operations
  * @adjfreq:  Adjusts the frequency of the hardware clock.
- *            parameter delta: Desired period change in parts per billion.
+ *            parameter delta: Desired frequency offset from nominal frequency
+ *            in parts per billion
  * @adjtime:  Shifts the time of the hardware clock.
  *            parameter delta: Desired change in nanoseconds.