From 4db073174f95653c5436615fc3a9a8dbae659b65 Mon Sep 17 00:00:00 2001 From: Jonathan Lemon Date: Wed, 2 Mar 2022 13:34:59 -0800 Subject: [PATCH] docs: ABI: Document new timecard sysfs nodes. Add documentation for the tod_correction, clock_status_drift, and clock_status_offset nodes. Signed-off-by: Jonathan Lemon Signed-off-by: David S. Miller --- Documentation/ABI/testing/sysfs-timecard | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-timecard b/Documentation/ABI/testing/sysfs-timecard index 97f6773794a5..5bf78486a469 100644 --- a/Documentation/ABI/testing/sysfs-timecard +++ b/Documentation/ABI/testing/sysfs-timecard @@ -63,6 +63,18 @@ Description: (RW) Contains the current synchronization source used by the PHC. May be changed by writing one of the listed values from the available_clock_sources attribute set. +What: /sys/class/timecard/ocpN/clock_status_drift +Date: March 2022 +Contact: Jonathan Lemon +Description: (RO) Contains the current drift value used by the firmware + for internal disciplining of the atomic clock. + +What: /sys/class/timecard/ocpN/clock_status_offset +Date: March 2022 +Contact: Jonathan Lemon +Description: (RO) Contains the current offset value used by the firmware + for internal disciplining of the atomic clock. + What: /sys/class/timecard/ocpN/gnss_sync Date: September 2021 Contact: Jonathan Lemon @@ -126,6 +138,16 @@ Description: (RW) These attributes specify the direction of the signal The 10Mhz reference clock input is currently only valid on SMA1 and may not be combined with other destination sinks. +What: /sys/class/timecard/ocpN/tod_correction +Date: March 2022 +Contact: Jonathan Lemon +Description: (RW) The incoming GNSS signal is in UTC time, and the NMEA + format messages do not provide a TAI offset. This sets the + correction value for the incoming time. + + If UBX_LS is enabled, this should be 0, and the offset is + taken from the UBX-NAV-TIMELS message. + What: /sys/class/timecard/ocpN/ts_window_adjust Date: September 2021 Contact: Jonathan Lemon -- 2.39.5