From patchwork Mon Oct 20 20:33:14 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Bruno_Pr=C3=A9mont?= X-Patchwork-Id: 5107731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B930F9F30B for ; Mon, 20 Oct 2014 20:38:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DA6D320179 for ; Mon, 20 Oct 2014 20:38:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A718E20176 for ; Mon, 20 Oct 2014 20:38:13 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XgJgD-0007J1-KR; Mon, 20 Oct 2014 20:35:49 +0000 Received: from hygieia.santi-shop.eu ([2a01:4f8:d13:3b02::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XgJfx-0007FA-At for linux-arm-kernel@lists.infradead.org; Mon, 20 Oct 2014 20:35:34 +0000 Received: from neptune.home (unknown [IPv6:2001:960:7ab:0:2c0:9fff:fe2d:39d]) by smtp.sysophe.eu (Postfix) with ESMTPSA id 5E92D481A207; Mon, 20 Oct 2014 22:35:06 +0200 (CEST) Date: Mon, 20 Oct 2014 22:33:14 +0200 From: Bruno =?UTF-8?B?UHLDqW1vbnQ=?= To: linux-sunxi@googlegroups.com, maxime.ripard@free-electrons.com, linux-arm-kernel@lists.infradead.org, lee.jones@linaro.org, Sebastian Reichel , Dmitry Eremin-Solenikov , David Woodhouse , linux-pm@vger.kernel.org Subject: [RFC Patch 1/4] mfd: AXP20x: Add power supply bindings documentation Message-ID: <20141020223314.0484f795@neptune.home> In-Reply-To: <20141020215954.7f1d5502@neptune.home> References: <20141020215954.7f1d5502@neptune.home> X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.24; i686-pc-linux-gnu) References: <20141020221959.2f312906@neptune.home> In-Reply-To: <20141020221959.2f312906@neptune.home> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141020_133533_558335_48016972 X-CRM114-Status: GOOD ( 11.55 ) X-Spam-Score: -1.6 (-) Cc: Olliver Schinagl X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP --- Note: the OCV values seem to have some defaults build into the PMIC though may need adjustment if the used battery has a different open circuit voltage curve. As far as understood (these values are set in vendor driver but not mentioned in chip documentation) they represent charge percentage for some predefined voltages. If prefixing these values with "x-power," is preferred the following patch should becomes a dependency: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/267606.html and users in patch 2/4, 4/4 need adjusting. Documentation/devicetree/bindings/mfd/axp20x.txt | 20 + 1 files changed, 20 insertions(+), 0 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt index cc9e01b..8ea681c 100644 --- a/Documentation/devicetree/bindings/mfd/axp20x.txt +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt @@ -28,6 +28,20 @@ Required properties: (range: 750-1875). Default: 1.5MHz Optional properties for DCDCs: +- backup: Settings for backup/RTC battery charger + (Voltage in µV, current in µA) + If not present, charger will be left untouched +- battery.ocv: OCV capacity curve points (16 data values) +- battery.resistance: internal battery resistance in m? + (defaults to 100m?) +- battery.capacity: Battery capacity in mAh + If this attribute is missing, charger will be disabled + unless there is a battery connected. +- battery.temp_sensor: Description of temperautre sensor, 3 values + - driver current (20µA, 40µA, 60µA or 80µA) + - low temperature warning level (in µV) + - high temperature warning level (in µV) + If missing, temperature sensor gets disabled - x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO mode Default: AUTO mode @@ -49,6 +63,12 @@ axp209: pmic@34 { ldo3in-supply = <&axp_ipsout_reg>; ldo5in-supply = <&axp_ipsout_reg>; + backup = <3000000 200>; + battery.ocv = <0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0>; + battery.resistance = <0>; + battery.capacity = <2000>; + battery.temp_sensor = <20 1000000 4000000>; + regulators { x-powers,dcdc-freq = <1500>;