From: ChiYuan Huang Date: Fri, 31 Oct 2025 07:19:35 +0000 (+0800) Subject: Documentation: power: rt9756: Document exported sysfs entries X-Git-Url: https://gentwo.org/gitweb/?a=commitdiff_plain;h=1cda37798599692cb553fdb4e93faa294e1a151b;p=linux%2F.git Documentation: power: rt9756: Document exported sysfs entries Document the settings exported by rt9756 charger driver through sysfs entries: - watchdog_timer - operation_mode Signed-off-by: ChiYuan Huang Link: https://patch.msgid.link/5138d4aa760d6ff81a5296cdf010a447056abce4.1761894605.git.cy_huang@richtek.com Signed-off-by: Sebastian Reichel --- diff --git a/Documentation/ABI/testing/sysfs-class-power-rt9756 b/Documentation/ABI/testing/sysfs-class-power-rt9756 new file mode 100644 index 000000000000..c4d6c2b4715d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-power-rt9756 @@ -0,0 +1,30 @@ +What: /sys/class/power_supply/rt9756-*/watchdog_timer +Date: Dec 2025 +KernelVersion: 6.19 +Contact: ChiYuan Huang +Description: + This entry shows and sets the watchdog timer when rt9756 charger + operates in charging mode. When the timer expires, the device + will disable the charging. To prevent the timer expires, any + host communication can make the timer restarted. + + Access: Read, Write + + Valid values: + - 500, 1000, 5000, 30000, 40000, 80000, 128000 or 255000 (milliseconds), + - 0: disabled + +What: /sys/class/power_supply/rt9756-*/operation_mode +Date: Dec 2025 +KernelVersion: 6.19 +Contact: ChiYuan Huang +Description: + This entry shows and set the operation mode when rt9756 charger + operates in charging phase. If 'bypass' mode is used, internal + path will connect vbus directly to vbat. Else, default 'div2' + mode for the switch-cap charging. + + Access: Read, Write + + Valid values: + - 'bypass' or 'div2'