From patchwork Mon Mar 20 09:43:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liam Breck X-Patchwork-Id: 740872 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vmrnn14qkz9s06 for ; Mon, 20 Mar 2017 20:51:57 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="tTYqxQe5"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753700AbdCTJvP (ORCPT ); Mon, 20 Mar 2017 05:51:15 -0400 Received: from mail-pg0-f68.google.com ([74.125.83.68]:33297 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753619AbdCTJvO (ORCPT ); Mon, 20 Mar 2017 05:51:14 -0400 Received: by mail-pg0-f68.google.com with SMTP id 79so10213634pgf.0; Mon, 20 Mar 2017 02:50:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=oNiWIkvCVwHoEtnSMtGWhOCWXUOHvDZX3kg9hDtcjlM=; b=tTYqxQe5bkADGf1UjFaH5nK/S6rAcn3HLS9d2IqrNNx8kDk9n57Io7cLbK91IfKOUl Sv+P9NSqAqMjvMx15LPdmjhIm5rojF6YQueC82VZEmWCLccA7RjFeiyTHI4KlcbSZrdb lnTzJFF9gKRnkCxy2ZhDyX8vfeMWGXoaeLunJffNf1XN0wVaTFeBZubEy+oivEwPTKW8 IPVANTkUDb1QBH7pbCZV6cztS4OY4wjszJO+vEUNAqH2/wKo9IpLctMqozZl0oPYeL2V JkRUa5E+i2Pe5RQ+EWjy178T02/ELws3CaZLzQijLkXzKacOviZsa2wZusBtljhzveDG bKCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=oNiWIkvCVwHoEtnSMtGWhOCWXUOHvDZX3kg9hDtcjlM=; b=bDXBZhZRUvuYxD3K0Wf4fyUimV4GB6UW1fiLnkxa7ztI47CMjbCKaasiIi/KSNk/3t 9rD7sMSK8DUd7kPqMWTb2uZYYYu8h3HMBkIfpmtD4Sbr9U8SM4/FMnMxcHM0WFqnQl/7 tafsAyIHETuceVjHrW1WLqxmu00ygQabCUVhf5lLd0HwxxBvhdLl/GhyPnhu3CBysYMM Xg1H3fz9CNJ1whNEBUq6pVv9vrsGqSL/EsY1nO1xlfoSue27+qjujIc4vcD6iIUFNY7U JhSQ0DZ9XS+81dMVo4YZe/ufWzjmKXOQYLKSQPtpvwEpRIgBpSaX8OG+bf9f4BEOOAFf Wsgw== X-Gm-Message-State: AFeK/H2cSyAVMT/CWTOyKWNzrn4fhN81oTAQ5GtCr3vAh5cD6scfpdca4GebiLhApUKVTw== X-Received: by 10.98.12.148 with SMTP id 20mr31522239pfm.116.1490003071686; Mon, 20 Mar 2017 02:44:31 -0700 (PDT) Received: from localhost.localdomain (c-73-223-93-234.hsd1.ca.comcast.net. [73.223.93.234]) by smtp.gmail.com with ESMTPSA id a8sm31999383pfa.30.2017.03.20.02.44.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 Mar 2017 02:44:31 -0700 (PDT) From: Liam Breck To: Sebastian Reichel Cc: "Andrew F. Davis" , linux-pm@vger.kernel.org, Matt Ranostay , Rob Herring , devicetree@vger.kernel.org, Liam Breck Subject: [PATCH v11 01/10] devicetree: power: Add battery.txt Date: Mon, 20 Mar 2017 02:43:26 -0700 Message-Id: <20170320094335.19224-2-liam@networkimprov.net> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170320094335.19224-1-liam@networkimprov.net> References: <20170320094335.19224-1-liam@networkimprov.net> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Liam Breck Documentation of static battery characteristics that can be defined for batteries which cannot self-identify. This information is required by fuel-gauge and charger chips for proper handling of the battery. Cc: Rob Herring Cc: devicetree@vger.kernel.org Signed-off-by: Matt Ranostay Signed-off-by: Liam Breck Acked-by: Sebastian Reichel Acked-by: Rob Herring --- .../devicetree/bindings/power/supply/battery.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/battery.txt diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt new file mode 100644 index 0000000..53a68c0 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/battery.txt @@ -0,0 +1,43 @@ +Battery Characteristics + +The devicetree battery node provides static battery characteristics. +In smart batteries, these are typically stored in non-volatile memory +on a fuel gauge chip. The battery node should be used where there is +no appropriate non-volatile memory, or it is unprogrammed/incorrect. + +Required Properties: + - compatible: Must be "simple-battery" + +Optional Properties: + - voltage-min-design-microvolt: drained battery voltage + - energy-full-design-microwatt-hours: battery design energy + - charge-full-design-microamp-hours: battery design capacity + +Battery properties are named, where possible, for the corresponding +elements in enum power_supply_property, defined in +https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/power_supply.h#n86 + +Batteries must be referenced by chargers and/or fuel-gauges +using a phandle. The phandle's property should be named +"monitored-battery". + +Example: + + bat: battery { + compatible = "simple-battery"; + voltage-min-design-microvolt = <3200000>; + energy-full-design-microwatt-hours = <5290000>; + charge-full-design-microamp-hours = <1430000>; + }; + + charger: charger@11 { + .... + monitored-battery = <&bat>; + ... + }; + + fuel_gauge: fuel-gauge@22 { + .... + monitored-battery = <&bat>; + ... + };