linux-kernel - [PATCH 09/17] ABI: sysfs-devices-power: add some debug sysfs files

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Date:   Mon, 27 Sep 2021 15:59:42 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "Jonathan Corbet" <corbet@....net>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Alan Stern <stern@...land.harvard.edu>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 09/17] ABI: sysfs-devices-power: add some debug sysfs files

Those files were added back in Apr 2010, but there's no
documentation for them yet.

Fixes: c92445fadb91 ("PM / Runtime: Add sysfs debug files")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---

See [PATCH 00/17] at: https://lore.kernel.org/all/cover.1632750608.git.mchehab+huawei@kernel.org/

 Documentation/ABI/testing/sysfs-devices-power | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power
index 84694b8fec8e..1b2a2d41ff80 100644
--- a/Documentation/ABI/testing/sysfs-devices-power
+++ b/Documentation/ABI/testing/sysfs-devices-power
@@ -283,3 +283,25 @@ Contact:	Arjan van de Ven <arjan@...ux.intel.com>
 Description:
 		Reports total time that the device has been suspended.
 		Used for runtime PM statistics.
+
+What:		/sys/devices/.../power/runtime_usage
+Date:		Apr 2010
+Contact:	Dominik Brodowski <linux@...inikbrodowski.net>
+Description:
+		Reports the runtime PM usage count of a device.
+
+What:		/sys/devices/.../power/runtime_enabled
+Date:		Apr 2010
+Contact:	Dominik Brodowski <linux@...inikbrodowski.net>
+Description:
+		Is runtime PM enabled for this device?
+		States are "enabled", "disabled", "forbidden" or a
+		combination of the latter two.
+
+What:		/sys/devices/.../power/runtime_active_kids
+Date:		Apr 2010
+Contact:	Dominik Brodowski <linux@...inikbrodowski.net>
+Description:
+		Reports the runtime PM children usage count of a device, or
+		0 if the the children will be ignored.
+
-- 
2.31.1