Re: [PATCH 01/10] power: supply: Add sysfs entry for system load control

[Waqar Hameed]

On Mon, Jun 29, 2026 at 17:44 +0200 Waqar Hameed <waqar.hameed@xxxxxxxx> wrote:

[...]

> diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
> index 32697b926cc8c..2287b207311cd 100644
> --- a/Documentation/ABI/testing/sysfs-class-power
> +++ b/Documentation/ABI/testing/sysfs-class-power
> @@ -590,6 +590,30 @@ Description:
>  
>  		Valid values: 0 - 100 (percent)
>  
> +What:		/sys/class/power_supply/<supply_name>/load_switch
> +Date:		June 2026
> +Contact:	linux-pm@xxxxxxxxxxxxxxx
> +Description:
> +		Devices can control the connection from power to system load.
> +		For example, with a field-effect transistor between a battery
> +		and the system load (BATFET). This entry controls such switch.
> +		The obvious states are "on" and "off", i.e. there is a
> +		connection or not, respectively. However, many devices can also
> +		enter special modes such as "low-power", "shipping" or "deep
> +		sleep". In these modes the switch is usually off and the
> +		quiescent current quite low.
> +
> +		Access: Read, Write
> +
> +		Valid values:
> +
> +		============= ==================================
> +		"On"      (1) Power is connected to the load.
> +		"Off"     (2) Power is disconnected to the load.
> +		"Standby" (3) Low-power mode.
> +		"Ship"    (4) Ship mode.
> +		============= ==================================

`"Unknown" (0)` needs to be added here as well...