From patchwork Mon Aug 15 07:34:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiYuan Huang X-Patchwork-Id: 12943217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70F67C282E7 for ; Mon, 15 Aug 2022 07:34:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241065AbiHOHe0 (ORCPT ); Mon, 15 Aug 2022 03:34:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241021AbiHOHeY (ORCPT ); Mon, 15 Aug 2022 03:34:24 -0400 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2D8F183AD; Mon, 15 Aug 2022 00:34:23 -0700 (PDT) Received: by mail-pf1-x42e.google.com with SMTP id p125so6052049pfp.2; Mon, 15 Aug 2022 00:34:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc; bh=up++5EREYL75SQc53yDph90kSCluwcs4sUEUFyLB5DY=; b=gZH7c2f1bPRfAynZ6wdxSOg7T8PRgU8LR1G7ucYyNw4x+vV6NpYdcpME5BDnrwfQNn +okUQTIo24cahw90COH98uPiMfr9bKd4VzNePSxQemRQS9Nbb4XHiz2HFOAvRiiU9/V9 dItwuf5dBk9FkSh4nLjZX+3rC6/I/RNptfE9w+XBXYbxqVzbPr/HoE5lTPOw366TseFf jhYxJUe6fcXXccQB2t7CZI+E8wTnZ+fEjd3jL1YBLobFHzzUnUnumV8mzmSiasLk+21X n+laqZLV+KoRC9SuCr770ko+68zrzGmfmVz0KriboANEQQqy2tYjU/Mtd2DxNwUOV6wT v5/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc; bh=up++5EREYL75SQc53yDph90kSCluwcs4sUEUFyLB5DY=; b=db2AHmKoPkfVnhKk43ZOsEowfOLyyw4uKZ33gdrCzQGFfPeLWGTtnb61J7pS3PVQMD IDqvFbZ47bil8BkkUydpiqaUtGUIRN8EQSPnHeki8euAAGWeUp4fkx7VtW3j7UiFOIU3 XHCC1ff2Lky1DilTymnstG7qza2xdGYZLcB19S77GklprmlKRK2wI+zjRfaXYzUJ1hXd XBpcuhUKeoOY28x/myb4w7QkFvq7jxh0rvlyqV+dSvyYrDNZV/y0w49B5WNJpXMiSMZl Sx8AMlhTtS4BfvT0RQyVWWnad8NQOf0Me8O6ELAJRNUEEA5ZyNudVdH/D4nEIcR/Ktku xeSw== X-Gm-Message-State: ACgBeo3JnuObAp6/+6yINCJ7/XTFDlsrYjlfRMzDHTmfsNBXOSQzOytM Z70rgyR7skq1oDjLGxTZ7+U= X-Google-Smtp-Source: AA6agR6V1Ptsb8psMUVEy8FccO/BOlc3X/IZzoactMIKHm4JP8UlTTnGpFAPbKOAaXJCWXKRAlxYeg== X-Received: by 2002:a05:6a00:4304:b0:532:3c0f:3597 with SMTP id cb4-20020a056a00430400b005323c0f3597mr15231159pfb.44.1660548863296; Mon, 15 Aug 2022 00:34:23 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:46b:2a3e:f57e:22d4:1ae1:ffd3]) by smtp.gmail.com with ESMTPSA id r1-20020aa79ec1000000b0053249b67215sm6088503pfq.131.2022.08.15.00.34.20 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Aug 2022 00:34:22 -0700 (PDT) From: cy_huang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, sre@kernel.org Cc: alina_yu@richtek.com, cy_huang@richtek.com, alinayu829@gmail.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: power: supply: Add Richtek RT9471 battery charger Date: Mon, 15 Aug 2022 15:34:11 +0800 Message-Id: <1660548852-6222-2-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1660548852-6222-1-git-send-email-u0084500@gmail.com> References: <1660548852-6222-1-git-send-email-u0084500@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: ChiYuan Huang Add bindings for the Richtek RT9471 I2C controlled battery charger. Co-developed-by: Alina Yu Signed-off-by: Alina Yu Signed-off-by: ChiYuan Huang Reviewed-by: Krzysztof Kozlowski --- Since v2 - Remove the properties for interrupt controller things in the binding documentation. - Fix dtc error for typo, it's 'regulator-name', not 'regulator-compatible'. - Add regulator min/max microamp to allow otg vbus current adjustable in example. - Specify the active-level for charge-enable-gpios in binding example. --- .../bindings/power/supply/richtek,rt9471.yaml | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml new file mode 100644 index 00000000..9286b82 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/supply/richtek,rt9471.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Richtek RT9471 3A Single Cell Switching Battery charger + +maintainers: + - Alina Yu + - ChiYuan Huang + +description: | + RT9471 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for + portable applications. It supports USB BC1.2 port detection, current and + voltage regulations in both charging and boost mode. + + Datasheet is available at + https://www.richtek.com/assets/product_file/RT9471=RT9471D/DS9471D-02.pdf + +properties: + compatible: + const: richtek,rt9471 + + reg: + maxItems: 1 + + charge-enable-gpios: + description: GPIO used to turn on and off charging. + maxItems: 1 + + wakeup-source: true + + interrupts: + maxItems: 1 + + usb-otg-vbus-regulator: + type: object + unevaluatedProperties: false + $ref: /schemas/regulator/regulator.yaml# + +required: + - compatible + - reg + - wakeup-source + - interrupts + +additionalProperties: false + +examples: + - | + #include + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + charger@53 { + compatible = "richtek,rt9471"; + reg = <0x53>; + charge-enable-gpios = <&gpio26 1 GPIO_ACTIVE_LOW>; + wakeup-source; + interrupts-extended = <&gpio_intc 32 IRQ_TYPE_EDGE_FALLING>; + + usb-otg-vbus-regulator { + regulator-name = "usb-otg-vbus"; + regulator-min-microvolt = <4850000>; + regulator-max-microvolt = <5300000>; + regulator-min-microamp = <500000>; + regulator-max-microamp = <1200000>; + }; + }; + };