From: Arvid Norlander Date: Fri, 2 Sep 2022 18:00:37 +0000 (+0200) Subject: docs: ABI: charge_control_end_threshold may not support all values X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=18ef1bb093ab1e0a74d146cbf4a9d132d01374d8;p=linux.git docs: ABI: charge_control_end_threshold may not support all values Some laptops (for example Toshiba Satellite Z830) only supports some fixed values. Allow for this and document the expected behaviour in such cases. Acked-by: Sebastian Reichel Signed-off-by: Arvid Norlander Link: https://lore.kernel.org/r/20220902180037.1728546-4-lkml@vorpal.se Signed-off-by: Hans de Goede --- diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index a9ce63cfbe87c..e434fc523291d 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -364,7 +364,10 @@ Date: April 2019 Contact: linux-pm@vger.kernel.org Description: Represents a battery percentage level, above which charging will - stop. + stop. Not all hardware is capable of setting this to an arbitrary + percentage. Drivers will round written values to the nearest + supported value. Reading back the value will show the actual + threshold set by the driver. Access: Read, Write