From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AB38CA9EA0 for ; Mon, 28 Oct 2019 07:20:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2008420862 for ; Mon, 28 Oct 2019 07:20:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="SrgmiIPW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732505AbfJ1HTz (ORCPT ); Mon, 28 Oct 2019 03:19:55 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:37440 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732466AbfJ1HTy (ORCPT ); Mon, 28 Oct 2019 03:19:54 -0400 Received: by mail-pf1-f193.google.com with SMTP id u9so1566262pfn.4 for ; Mon, 28 Oct 2019 00:19:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=ssMFBj43632FcWk2CcxAhFxBDGN9BLK5UqZaapoI3EI=; b=SrgmiIPW0C51iZX8hYKQ2hSUsynSut8k+7kzklaDe3hpral131t906w1kTxvTbV5tI 3AJFcoHHfri+SAsbQwrHOkCumk9s5R6sxf0Lsy79Eu3J5KBusj0Cen9tu0V/2wqWGbOH RETMM4ndBRk1j1in/GGXg8h7nnVqMSf39k7vZ9ymw67v30mM/OouHrZs1i+tJqqJyyOF E3KORbX1/MWIMAzbqYg5QFuWzs2eufjGB9AgaqQiuXq3TcGvlFZyGGOLnDd9ObkzVP+4 sNMQvk6FIeWdhMOwKBK32SKHR1/sO5Itv7GXMlIUpon3uADMjv1Nqvuf//N/tlfER0f+ 1T/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=ssMFBj43632FcWk2CcxAhFxBDGN9BLK5UqZaapoI3EI=; b=TWO1S8zs1I2AG3LEqTP/mSqYyMfeeW9f0DpMh0BspU3fKvm+x4s2sgA8OJIA95E2wP bQRWy8KgXried9whB3dgfR+fpvQGJa2khFAQzx/rgZEurLBFvMMK5w4BNme5F74duMc5 zYaF+2aEITq2T6mb2jYe2QTtvqCaMeEPgF6PAKDYsfH9GUOC8iOc+4jDf3rZLHXb8Z9B Ds6CKW8th1p/dAzqarwQnHZN4LjQrLtW7DJ1BZMZh+5z9W3SkQH1Q5t24Z2HU23A3el8 lf/FImJZMxzHPsEf++B+IAalQlcIPa3bwTa5NMR2zk8kGUE+ONPsOTf63bbKA85X4XfY y27g== X-Gm-Message-State: APjAAAWkUx6pD7mf6lcPfGXjMgbT8H4QV/XhdGWrCNHvrDCoUjLtzmF3 4ckbpOJSV+8+9BWy1PNNkmMtiQ== X-Google-Smtp-Source: APXvYqyOl7sbyoI1mYNi/ewKV9zLdhmDBcQe9nL/ufV1lXHqClNmhenBTTW1DVH/LhXSpRQwKSwSQg== X-Received: by 2002:a17:90b:f10:: with SMTP id br16mr20271382pjb.111.1572247194072; Mon, 28 Oct 2019 00:19:54 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id 13sm11504703pgq.72.2019.10.28.00.19.50 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 28 Oct 2019 00:19:53 -0700 (PDT) From: Baolin Wang To: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, yuanjiang.yu@unisoc.com, baolin.wang@linaro.org, baolin.wang7@gmail.com, zhang.lyra@gmail.com, orsonzhai@gmail.com Subject: [PATCH 1/5] dt-bindings: power: Introduce one property to describe the battery resistance with temperature changes Date: Mon, 28 Oct 2019 15:18:57 +0800 Message-Id: <44f0c19510c7317cb4ee6cac54b3adfa81c2d6d0.1572245011.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Since the battery internal resistance can be changed as the temperature changes, thus add one table to describe the battery resistance percent in different temperature to get a accurate battery internal resistance. Signed-off-by: Baolin Wang --- .../devicetree/bindings/power/supply/battery.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt index 5c913d4c..1a6f951 100644 --- a/Documentation/devicetree/bindings/power/supply/battery.txt +++ b/Documentation/devicetree/bindings/power/supply/battery.txt @@ -35,6 +35,10 @@ Optional Properties: for each of the battery capacity lookup table. The first temperature value specifies the OCV table 0, and the second temperature value specifies the OCV table 1, and so on. + - resistance-temp-table: An array providing the resistance percent and + corresponding temperature in degree Celsius, which is used to look up the + resistance percent according to current temperature to get a accurate + batterty internal resistance. Battery properties are named, where possible, for the corresponding elements in enum power_supply_property, defined in @@ -61,6 +65,7 @@ Example: ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>, ...; ocv-capacity-table-1 = <4200000 100>, <4185000 95>, <4113000 90>, ...; ocv-capacity-table-2 = <4250000 100>, <4200000 95>, <4185000 90>, ...; + resistance-temp-table = <20 100>, <10 90>, <0 80>, <(-10) 60>; }; charger: charger@11 { -- 1.7.9.5