From patchwork Mon Sep 26 02:39:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: cy_huang X-Patchwork-Id: 609558 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 9D386C6FA83 for ; Mon, 26 Sep 2022 02:39:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233145AbiIZCj4 (ORCPT ); Sun, 25 Sep 2022 22:39:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233163AbiIZCjw (ORCPT ); Sun, 25 Sep 2022 22:39:52 -0400 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29C9EDFB6; Sun, 25 Sep 2022 19:39:47 -0700 (PDT) Received: by mail-pl1-x62d.google.com with SMTP id d24so4979854pls.4; Sun, 25 Sep 2022 19:39:47 -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:subject:date; bh=WdPMA2pH0mS9gX0lH3J9f/5y/00ONBhVpJZxWxuBUaU=; b=i46z/9h4eCp2BjXwoBf1jB8mkWv+ktOSV/sqUZe6WAUgmVDAKTaXGhtpGfhr9gfnVf MQcOw1nO0gbWe0w3gP60kKaF8Nwlb54hr9WSLV7Fi01fiyFaAYcvbzVPbgWW+1HqgHsy 98hvw7+Svp1y26yZZ3E4evhMDsgSKfEs0owQCfMrlslHDWhtnbLG/OtbAMl4oDnM7TJo j4/Lg5LGfGYj10tpU/fwKfMmZAS32SG52czeqR4JrTj5uleDb7CCI3BIvfcE71E2A7vl YBL9ffx7gzYiJ0cEo4l2aU8/NXL0vVkaX/lPNKsOHpli/VitKCs9ltrJvOOotIynOc5w 2PTg== 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:subject:date; bh=WdPMA2pH0mS9gX0lH3J9f/5y/00ONBhVpJZxWxuBUaU=; b=8EEv4ic5rFtSrmfKa87sh3Ia+mTLk36nyALWL4Y6xa6C5U/36MlsEl7wFr+ID9H7Be 2wxEN9Jl4YXwP71ogl+KGceDcc7/P2atnz0DcTs8lR31JnpAAzMnENTbYH9Uvof5qQ+d MILGin5B7w+4bYis7RfnDB6bLD6mtcdIKSQ6MFrdH3LXpg9n0p81ZTHzayURA0AAE2Sz Kf7h5n8IqzZBwk6rh4M0gJG8CvHNzL7ZGqgG4Sm/QflckWh56caFWnp2IwQdgLDsXHlf ReBccglTIPsJSWmLoocMUDGophrQwqVf3RYtQ3KK6Fr+EeZjUtd++pmt4YQLB9A1j01o 0XHA== X-Gm-Message-State: ACrzQf1oBeJ+/DZmgMk1bdskSXmQazZvqdTHskoKOT2GjqBKbP7YGTMu sPlutHoBGCMZiFCH4rp09KU= X-Google-Smtp-Source: AMsMyM7Q+Flm9GfFLAHcTEJeG9s9XKjirJnSjJvWEVlnXcTpIAG37D+dQGXPe+OPwk7CsQDRcMdGgA== X-Received: by 2002:a17:90b:1b4c:b0:202:c1a3:25ce with SMTP id nv12-20020a17090b1b4c00b00202c1a325cemr34956911pjb.232.1664159986404; Sun, 25 Sep 2022 19:39:46 -0700 (PDT) Received: from localhost.localdomain ([49.216.30.246]) by smtp.gmail.com with ESMTPSA id y3-20020aa793c3000000b005383988ec0fsm10667584pff.162.2022.09.25.19.39.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 25 Sep 2022 19:39:45 -0700 (PDT) From: cy_huang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, sre@kernel.org Cc: mazziesaccount@gmail.com, 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 v6 1/3] dt-bindings: power: supply: Add Richtek RT9471 battery charger Date: Mon, 26 Sep 2022 10:39:30 +0800 Message-Id: <1664159972-4391-2-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1664159972-4391-1-git-send-email-u0084500@gmail.com> References: <1664159972-4391-1-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. Reviewed-by: Krzysztof Kozlowski Co-developed-by: Alina Yu Signed-off-by: Alina Yu Signed-off-by: ChiYuan Huang --- Since v3 - Move unevaluatedProperties line after $ref for binding patch. - Add Reviewed-by tag for binding patch. Since v2 - Remove the properties for interrupt controller things in the binding documentation. - Fix dtc error for typo, it's 'regulator-name', not 'regulator-compatible'. - Add regulator min/max microamp to allow otg vbus current adjustable in example. - Specify the active-level for charge-enable-gpios in binding example. --- .../bindings/power/supply/richtek,rt9471.yaml | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml new file mode 100644 index 00000000..fbb54cf --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$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 + $ref: /schemas/regulator/regulator.yaml# + unevaluatedProperties: false + +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>; + }; + }; + }; From patchwork Mon Sep 26 02:39:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: cy_huang X-Patchwork-Id: 609557 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 BB35DC04A95 for ; Mon, 26 Sep 2022 02:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233420AbiIZCkV (ORCPT ); Sun, 25 Sep 2022 22:40:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56542 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233222AbiIZCkN (ORCPT ); Sun, 25 Sep 2022 22:40:13 -0400 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB3E72656B; 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Sun, 25 Sep 2022 19:39:59 -0700 (PDT) Received: from localhost.localdomain ([49.216.30.246]) by smtp.gmail.com with ESMTPSA id y3-20020aa793c3000000b005383988ec0fsm10667584pff.162.2022.09.25.19.39.54 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 25 Sep 2022 19:39:58 -0700 (PDT) From: cy_huang To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, sre@kernel.org Cc: mazziesaccount@gmail.com, 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 v6 3/3] Documentation: power: rt9471: Document exported sysfs entries Date: Mon, 26 Sep 2022 10:39:32 +0800 Message-Id: <1664159972-4391-4-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1664159972-4391-1-git-send-email-u0084500@gmail.com> References: <1664159972-4391-1-git-send-email-u0084500@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: ChiYuan Huang Document the settings exported by rt9471 charger driver through sysfs entries: - sysoff_enable - port_detect_enable Signed-off-by: ChiYuan Huang --- Since v6: - Explain more details for sysoff_enable attribute. Since v5: - Recover all the change in sysfs-class-power. - New a sysfs-class-power-rt9471 file. - Remove 'charge_term_enable' sysfs entry, directly integrate it in 'charge_term_current' power supply property control. --- Documentation/ABI/testing/sysfs-class-power-rt9471 | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9471 diff --git a/Documentation/ABI/testing/sysfs-class-power-rt9471 b/Documentation/ABI/testing/sysfs-class-power-rt9471 new file mode 100644 index 00000000..38227a8 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-power-rt9471 @@ -0,0 +1,32 @@ +What: /sys/class/power_supply/rt9471-*/sysoff_enable +Date: Oct 2022 +KernelVersion: 6.1 +Contact: ChiYuan Huang +Description: + This entry allows enabling the sysoff mode of rt9471 charger devices. + If enabled and the input is removed, the internal battery FET is turned + off to reduce the leakage from the BAT pin. See device datasheet for details. + It's commonly used when the product enter shipping stage. After entering + shipping mode, only 'VBUS' or 'Power key" pressed can make it leave this + mode. 'Disable' also can help to leave it, but it's more like to abort + the action before the device really enter shipping mode. + + Access: Read, Write + Valid values: + - 1: enabled + - 0: disabled + +What: /sys/class/power_supply/rt9471-*/port_detect_enable +Date: Oct 2022 +KernelVersion: 6.1 +Contact: ChiYuan Huang +Description: + This entry allows enabling the USB BC12 port detect function of rt9471 charger + devices. If enabled and VBUS is inserted, device will start to do the BC12 + port detect and report the usb port type when port detect is done. See + datasheet for details. Normally controlled when TypeC/USBPD port integrated. + + Access: Read, Write + Valid values: + - 1: enabled + - 0: disabled