From nobody Mon Mar 23 21:24:12 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E0CE93BE626; Mon, 23 Mar 2026 16:04:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774281857; cv=none; b=J+nEZnY5jCQGINerQLbbKUL7MYP6tEGOcr9MzmNM4aBWHYaderqnMSLEMp/XWklwgOAfHD2F163BLO3z6sNkigJzrS2ePKkxNZAu1huqnVKxY3+2KltLIezcrOQ/LF8BCKATgLy14AplXFBZp4nv8qmzYiipia4YOLwfkYlIkEs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774281857; c=relaxed/simple; bh=VHMopsrG6Xi22dXMAyiAPvlaIWJqNW9MggRaSuIfstI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cg8/HWQnnw8G6PfioTc70PNcSLu3xVRmb0JH6RCerve0/hVR5VlOrJmv/KgdISCIjLQ5WqFk5/IKsIZGM5xzwBCM7eHxmWtcKOyLiwq95luTPzkGhnTPK89K4Mvloy3ntB7NpmWgnHvf7krtQtv9Z7GGNO845Zkz4IZQ5YqNm5c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KrF8fe1X; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KrF8fe1X" Received: by smtp.kernel.org (Postfix) with ESMTPS id 877DEC2BCB4; Mon, 23 Mar 2026 16:04:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774281856; bh=VHMopsrG6Xi22dXMAyiAPvlaIWJqNW9MggRaSuIfstI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=KrF8fe1XsxH7ARV7e521gkWrr1ji9P12SsvtABaLHNEN3Wf4AZjCQHRyh+5xdsuIl 31M2XmXgZGn2bZVVAekdjdtEF2H6Jacn40HS0MUbf3eNNQUblWPrNvS/kZwfRNTheL bpX6rlLMtN0MNvHj+/A7LbGml+MIyzEbyroD64QhU2KIbVxqnbdW1iR2/KGQbPjQhL xxK/PW1Gs06xcFT4N9MjkNV/NAhEDXr8fKG1INTN42hBWaLwbdNYj4B65foidd2wqo d7b6uOAQlHjz2MyeNFXQRnZJq3oW8Lyr4wwgkex+fWa5FvHmvMFtb+7EVUV0cz5Gdv HXh9DaWdbfygw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D5D5F483C1; Mon, 23 Mar 2026 16:04:16 +0000 (UTC) From: Dimitri Fedrau via B4 Relay Date: Mon, 23 Mar 2026 17:04:06 +0100 Subject: [PATCH v3 1/2] dt-bindings: power: supply: gpio-charger: add support for fast-charge timer Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260323-gpio-charger-timer-v3-1-885796d681a5@liebherr.com> References: <20260323-gpio-charger-timer-v3-0-885796d681a5@liebherr.com> In-Reply-To: <20260323-gpio-charger-timer-v3-0-885796d681a5@liebherr.com> To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dimitri Fedrau , Dimitri Fedrau X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1774281855; l=1976; i=dimitri.fedrau@liebherr.com; s=20241202; h=from:subject:message-id; bh=qVR6Vlf2NNZxUIBX8M/euAC/Z+4KL1Wd23n+lTvvOvU=; b=qRmAOLjR6UzvKW8cPZJQ3T9OJVvl50z8wxEwmvMLqS2Dra+xb0jUNQ24eg3yq4GfoOvy9EuaO cTTFvIKcLkPB1A0Kp3mTsggf0o+4pM3FwQz8WGQ2qhpA1MEOXC22u8g X-Developer-Key: i=dimitri.fedrau@liebherr.com; a=ed25519; pk=rT653x09JSQvotxIqQl4/XiI4AOiBZrdOGvxDUbb5m8= X-Endpoint-Received: by B4 Relay for dimitri.fedrau@liebherr.com/20241202 with auth_id=290 X-Original-From: Dimitri Fedrau Reply-To: dimitri.fedrau@liebherr.com From: Dimitri Fedrau On some devices like TIs BQ24081 battery charger it is possible to activate or deactivate a fast-charge timer that provides a backup safety for charge termination via GPIO. In case of the BQ24081 it is a fixed 7-hour timer. Signed-off-by: Dimitri Fedrau --- .../bindings/power/supply/gpio-charger.yaml | 22 ++++++++++++++++++= +++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/power/supply/gpio-charger.ya= ml b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml index 25826bfc289c1c00c338fd0cee2ae6932529cfc3..fefa09cb24ec2f501099f486c9a= 4eb77e64cda67 100644 --- a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml +++ b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml @@ -16,7 +16,12 @@ description: =20 properties: compatible: - const: gpio-charger + oneOf: + - const: gpio-charger + - items: + - enum: + - ti,bq24081 + - const: gpio-charger =20 charger-type: enum: @@ -62,6 +67,10 @@ properties: description: Default charge current limit. Must be listed in charge-current-limit-mapping. =20 + fast-charge-timer-gpios: + maxItems: 1 + description: GPIO used for enabling/disabling the fast-charge timer + required: - compatible =20 @@ -98,3 +107,14 @@ examples: <0 0x02>; // 0 mA =3D> GPIO A.11 high charge-current-limit-default-microamp =3D <700000>; }; + - | + #include + + charger { + compatible =3D "ti,bq24081", "gpio-charger"; + charger-type =3D "battery"; + charge-status-gpios =3D <&gpio1 4 GPIO_ACTIVE_LOW>; + charge-current-limit-gpios =3D <&gpio1 3 GPIO_ACTIVE_LOW>; + charge-current-limit-mapping =3D <206000 0x1>, <0 0x0>; + fast-charge-timer-gpios =3D <&gpio1 6 GPIO_ACTIVE_LOW>; + }; --=20 2.39.5