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| author | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-09-27 15:59:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-28 12:48:15 +0200 |
| commit | 405ea445781ac27c7bb68bb27eec6086db7922c1 (patch) | |
| tree | 5c55ecc2f496abdb19f20a4bd708c92b61732346 /Documentation/ABI/testing/sysfs-devices-power | |
| parent | eeac9faf9645e2eeda0c7414700c41936667dbaa (diff) | |
ABI: sysfs-devices-power: document some RPM statistics
Changeset 8d4b9d1bfef1 ("PM / Runtime: Add runtime PM statistics (v3)")
added runtime_active_time and runtime_suspended_time, in order
to allow powertop to identify the amount of time a device is
active/suspended.
Add an ABI description for those.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/d5524b966d081c650121c4c496c2f7ab3df524e9.1632750608.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-devices-power')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-power | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index 1763e64dd152..84694b8fec8e 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -269,3 +269,17 @@ Description: the current runtime PM status of the device, which may be "suspended", "suspending", "resuming", "active", "error" (fatal error), or "unsupported" (runtime PM is disabled). + +What: /sys/devices/.../power/runtime_active_time +Date: Jul 2010 +Contact: Arjan van de Ven <arjan@linux.intel.com> +Description: + Reports the total time that the device has been active. + Used for runtime PM statistics. + +What: /sys/devices/.../power/runtime_suspended_time +Date: Jul 2010 +Contact: Arjan van de Ven <arjan@linux.intel.com> +Description: + Reports total time that the device has been suspended. + Used for runtime PM statistics. |