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Message-ID: <072180743039027b8476525bfb3d04b3dd044be1.1759824376.git.mazziesaccount@gmail.com>
Date: Tue, 7 Oct 2025 11:33:07 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc: Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Sebastian Reichel <sre@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
Matti Vaittinen <mazziesaccount@...il.com>,
Andreas Kemnade <andreas@...nade.info>, linux-leds@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: [RFC PATCH 02/13] dt-bindings: Add trickle-charge upper limit
Some of the chargers for lithium-ion batteries use a trickle-charging as
a first charging phase for very empty batteries, to "wake-up" the battery.
Trickle-charging is a low current, constant current phase. After the
voltage of the very empty battery has reached an upper limit for
trickle charging, the pre-charge phase is started with a higher current.
Allow defining the upper limit for trickle charging voltage, after which
the charging should be changed to the pre-charging.
Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
---
Documentation/devicetree/bindings/power/supply/battery.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/battery.yaml b/Documentation/devicetree/bindings/power/supply/battery.yaml
index 491488e7b970..66bed24b3dee 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/battery.yaml
@@ -66,6 +66,9 @@ properties:
trickle-charge-current-microamp:
description: current for trickle-charge phase
+ tricklecharge-upper-limit-microvolt:
+ description: limit when to change to precharge from trickle charge
+
precharge-current-microamp:
description: current for pre-charge phase
--
2.51.0
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