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[v2,3/3] docs: ABI: charge_control_end_threshold may not support all values

Message ID 20220902180037.1728546-4-lkml@vorpal.se
State Accepted
Commit 18ef1bb093ab1e0a74d146cbf4a9d132d01374d8
Headers show
Series platform/x86: Battery charge mode in toshiba_acpi | expand

Commit Message

Arvid Norlander Sept. 2, 2022, 6 p.m. UTC 
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 <sebastian.reichel@collabora.com>
Signed-off-by: Arvid Norlander <lkml@vorpal.se>
---
 Documentation/ABI/testing/sysfs-class-power | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index a9ce63cfbe87..e434fc523291 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