linux-kernel - [PATCH v2 3/3] Documentation: power: rt9467: Document exported sysfs entries

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Message-Id: <40676e2af49dc8d9bdd9c5f80aef3ad0f5b731db.1664997251.git.chiaen_wu@richtek.com>
Date:   Wed,  5 Oct 2022 19:37:24 +0800
From:   ChiaEn Wu <peterwu.pub@...il.com>
To:     sre@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     chiaen_wu@...htek.com, cy_huang@...htek.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: [PATCH v2 3/3] Documentation: power: rt9467: Document exported sysfs entries

From: ChiaEn Wu <chiaen_wu@...htek.com>

Document the settings exported by rt9467 charger driver through sysfs
entries:
- sysoff_enable

Signed-off-by: ChiaEn Wu <chiaen_wu@...htek.com>
---
 Documentation/ABI/testing/sysfs-class-power-rt9467 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9467

diff --git a/Documentation/ABI/testing/sysfs-class-power-rt9467 b/Documentation/ABI/testing/sysfs-class-power-rt9467
new file mode 100644
index 0000000..dd0b962
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-rt9467
@@ -0,0 +1,19 @@
+What:		/sys/class/power_supply/rt9467-*/sysoff_enable
+Date:		Oct 2022
+KernelVersion:	6.0
+Contact:	ChiaEn Wu <chiaen_wu@...htek.com>
+Description:
+		This entry allows enabling the sysoff mode of rt9467 charger
+		devices.
+		If enabled and the input is removed, the internal battery FET
+		is turned off to reduce the leakage from the BAT pin. See
+		device datasheet for details. It's commonly used when the
+		product enter shipping stage. After entering shipping mode,
+		only 'VBUS' or 'Power key" pressed can make it leave this mode.
+		'Disable' also can help to leave it, but it's more like to
+		abort the action before the device really enter shipping mode.
+
+		Access: Read, Write
+		Valid values:
+		- 1: enabled
+		- 0: disabled
-- 
2.7.4