Re: [PATCH] platform/x86:dell-laptop:Add battery charging thresholds and charging mode switch.

From: Matthew Garrett
Date: Wed Jul 29 2020 - 04:07:59 EST


On Tue, Jul 28, 2020 at 11:54:24PM -0700, Perry Yuan wrote:

This seems extremely useful, but:

> diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
> index bf3b48f022dc..a8adc3b0ca4b 100644
> --- a/Documentation/ABI/testing/sysfs-class-power
> +++ b/Documentation/ABI/testing/sysfs-class-power
> @@ -334,6 +334,29 @@ Description:
> Access: Read
> Valid values: Represented in microvolts
>
> +What: /sys/class/power_supply/<supply_name>/charge_control_charging_mode
> +Date: March 2020
> +Contact: linux-pm@xxxxxxxxxxxxxxx

The values here seem very Dell specific, but this is going into a
generic sysfs path. Really stuff here should be as vendor independent as
possible. If these values don't correspond to a wider industry
specification it probably makes sense to make this something Dell
specific.

--
Matthew Garrett | mjg59@xxxxxxxxxxxxx