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From: Arvid Norlander <lkml@vorpal.se>
To: platform-driver-x86@vger.kernel.org, linux-pm@vger.kernel.org
Cc: Sebastian Reichel <sre@kernel.org>,
	Hans de Goede <hdegoede@redhat.com>,
	Azael Avalos <coproscefalo@gmail.com>,
	Arvid Norlander <lkml@vorpal.se>
Subject: [PATCH 3/3] docs: ABI: charge_control_end_threshold may not support all values
Date: Sun, 28 Aug 2022 21:29:20 +0200	[thread overview]
Message-ID: <20220828192920.805253-4-lkml@vorpal.se> (raw)
In-Reply-To: <20220828192920.805253-1-lkml@vorpal.se>

Some laptops (for example Toshiba Satellite Z830) only supports some fixed
values. Allow for this and document the expected behaviour in such cases.

Wording suggested by Hans de Goede.

Signed-off-by: Arvid Norlander <lkml@vorpal.se>
---
 Documentation/ABI/testing/sysfs-class-power | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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
 
-- 
2.37.2


  parent reply	other threads:[~2022-08-28 19:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-28 19:29 [PATCH 0/3] platform/x86: Battery charge mode in toshiba_acpi Arvid Norlander
2022-08-28 19:29 ` [PATCH 1/3] platform/x86: Battery charge mode in toshiba_acpi (internals) Arvid Norlander
2022-08-28 19:29 ` [PATCH 2/3] platform/x86: Battery charge mode in toshiba_acpi (sysfs) Arvid Norlander
2022-08-28 22:15   ` kernel test robot
2022-08-28 22:44     ` Arvid Norlander
2022-08-28 22:44       ` Arvid Norlander
2022-08-29  8:16       ` Miguel Ojeda
2022-08-29  8:16         ` Miguel Ojeda
2022-08-29 16:59     ` Nick Desaulniers
2022-08-29 16:59       ` Nick Desaulniers
2022-08-28 22:36   ` kernel test robot
2022-08-28 19:29 ` Arvid Norlander [this message]
2022-09-01 21:14   ` [PATCH 3/3] docs: ABI: charge_control_end_threshold may not support all values Sebastian Reichel
2022-09-01 15:27 ` [PATCH 0/3] platform/x86: Battery charge mode in toshiba_acpi Hans de Goede

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