[PATCH 050/241] ptp: update adjfreq callback description
Herton Ronaldo Krzesinski
herton.krzesinski at canonical.com
Thu Dec 13 13:56:55 UTC 2012
3.5.7.2 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Jacob Keller <jacob.e.keller at intel.com>
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 at intel.com>
CC: Richard Cochran <richard.cochran at gmail.com>
CC: John Stultz <john.stultz at linaro.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher at intel.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com>
---
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.
--
1.7.9.5
More information about the kernel-team
mailing list