From patchwork Fri Sep 30 09:44:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiYuan Huang X-Patchwork-Id: 12995091 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 A5E34C433F5 for ; Fri, 30 Sep 2022 09:45:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231368AbiI3Jpb (ORCPT ); Fri, 30 Sep 2022 05:45:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231375AbiI3JpY (ORCPT ); Fri, 30 Sep 2022 05:45:24 -0400 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 698534BA65; Fri, 30 Sep 2022 02:45:13 -0700 (PDT) Received: by mail-pj1-x1033.google.com with SMTP id u59-20020a17090a51c100b00205d3c44162so8545329pjh.2; Fri, 30 Sep 2022 02:45:13 -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=01csQ8DlrzSvMM7Az3qJeMprGZ73Hm/q0Ht2rfrJyG4=; b=Wyv2QVOiUxQayzYZmso8eCNs6aXJ+rt009E2YoWJiW+iJci2hy0oJ00fWBHnUy02k4 jo7R7De7gjwD4DNEfZ1ucHtQZJGyRHYy+ed6BaBMcaLK17K4BAh3sjhtlhofxEFDWSr1 Loabtj5CJrK3ECbt1d7bMUIOrGXNfmch6CIpRuE63YFSAtQhZZACrA86BIwrwBRjEQ7S voG0GQquxkk+u8sWLShHRQFnthCyDnHUGVGqiQjaYRI+l1FDaugd0pHwUBOUvIqacIq1 hg8kcWaInapbnz27HU/ZE6u3m7lPq1WDmk1LJv1GCEJG35lUr3/Y4QWeiiyou0yBCNjQ qx0w== 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=01csQ8DlrzSvMM7Az3qJeMprGZ73Hm/q0Ht2rfrJyG4=; b=WC8HJqlBVgAgfxnOqnXjpY1MegS/D3YhPbMtXhb/SjQsh41CVMZInVSvwukO98MO+6 e5g58YQPFwoRTVPSFNC1s6zGoQE9PTn3DxhPNGcLC7KV9JTlAkegzPE1njnLdJmM9ktH JeiELdI2LGJIlK4rJxTjQ+9EkPwt38YnJnxE1ciA/EuNX24AzQpnZIBMcWeRGWYJkVs0 6aLIyJDhRd/5gYPJGDeoeA/pzLfJ9DhNkLXaoTnMibdmZL/FdU1MpGnkhfNgiUsEfPQU DCIh/DN/18PtJB466hS8lE/NqyDhpQjuuqkm/UstF7QDVgYF5xIQMMce674bDNoJovG2 MmmA== X-Gm-Message-State: ACrzQf1yr8dUdfqP5uxaILmEPHwYh1J30yGfX1zPtQUFv6yzfg5pd1kL 6rrdTKzE90XuEQd3Anjr1zw= X-Google-Smtp-Source: AMsMyM7+M6z3xsySa9uNc4Ve0DDMYVrM1hZ0ipQxCygJzT9uDub59ZfDhCauAucihHL9aqBNsA4zPw== X-Received: by 2002:a17:902:ecc2:b0:178:1313:afc3 with SMTP id a2-20020a170902ecc200b001781313afc3mr8061981plh.139.1664531112173; Fri, 30 Sep 2022 02:45:12 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:579:1b3a:4d22:d83a:1d4a:43f1]) by smtp.gmail.com with ESMTPSA id b7-20020a170902650700b0016dc78d0153sm1398051plk.296.2022.09.30.02.45.08 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 30 Sep 2022 02:45:11 -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 v7 3/3] Documentation: power: rt9471: Document exported sysfs entries Date: Fri, 30 Sep 2022 17:44:39 +0800 Message-Id: <1664531079-15915-4-git-send-email-u0084500@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1664531079-15915-1-git-send-email-u0084500@gmail.com> References: <1664531079-15915-1-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