From patchwork Wed Mar 15 10:55:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 95336 Delivered-To: patch@linaro.org Received: by 10.140.89.134 with SMTP id v6csp283043qgd; Wed, 15 Mar 2017 04:40:38 -0700 (PDT) X-Received: by 10.98.196.12 with SMTP id y12mr3172378pff.49.1489578038482; Wed, 15 Mar 2017 04:40:38 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u62si1864000pgd.202.2017.03.15.04.40.38; Wed, 15 Mar 2017 04:40:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753560AbdCOK6U (ORCPT + 25 others); Wed, 15 Mar 2017 06:58:20 -0400 Received: from mail.free-electrons.com ([62.4.15.54]:58788 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752335AbdCOK4l (ORCPT ); Wed, 15 Mar 2017 06:56:41 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id 6482E20845; Wed, 15 Mar 2017 11:56:40 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from qschulz.home (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id 764F920824; Wed, 15 Mar 2017 11:56:24 +0100 (CET) From: Quentin Schulz To: icenowy@aosc.xyz, bonbons@linux-vserver.org, sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, wens@csie.org, linux@armlinux.org.uk, maxime.ripard@free-electrons.com, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, lee.jones@linaro.org Cc: Quentin Schulz , liam@networkimprov.net, thomas.petazzoni@free-electrons.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-iio@vger.kernel.org, linux-sunxi@googlegroups.com Subject: [PATCH v4 11/18] dt-bindings: power: supply: add AXP20X/AXP22X battery DT binding Date: Wed, 15 Mar 2017 11:55:30 +0100 Message-Id: <20170315105537.22349-12-quentin.schulz@free-electrons.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170315105537.22349-1-quentin.schulz@free-electrons.com> References: <20170315105537.22349-1-quentin.schulz@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The X-Powers AXP20X and AXP22X PMICs can have a battery as power supply. This patch adds the DT binding documentation for the battery power supply which gets various data from the PMIC, such as the battery status (charging, discharging, full, dead), current max limit, current current, battery capacity (in percentage), voltage max and min limits, current voltage and battery capacity (in Ah). Signed-off-by: Quentin Schulz Acked-by: Chen-Yu Tsai Acked-by: Maxime Ripard --- v4: - added monitored-battery optional property, - added example with battery, v3: - removed constant charge current property, now should use the WIP battery framework, v2: - changed DT node name from ac_power_supply to ac-power-supply, - removed io-channels and io-channel-names from DT (the IIO mapping is done in the IIO ADC driver now), - added x-powers,constant-charge-current property to set the maximal default constant current charge of the battery, .../bindings/power/supply/axp20x_battery.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/axp20x_battery.txt -- 2.9.3 diff --git a/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt new file mode 100644 index 0000000..89cb7a2 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt @@ -0,0 +1,30 @@ +AXP20x and AXP22x battery power supply + +Required Properties: + - compatible, one of: + "x-powers,axp209-battery-power-supply" + "x-powers,axp221-battery-power-supply" + +Optional properties: + - monitored-battery, phandle to a fixed battery + +This node is a subnode of the axp20x/axp22x PMIC. + +The AXP20X and AXP22X can read the battery voltage, charge and discharge +currents of the battery by reading ADC channels from the AXP20X/AXP22X +ADC. + +Example: + +battery: battery { + compatible = "fixed-battery"; + voltage-min-design-microvolt = <3200000>; + constant-charge-microamp = <300000>; +}; + +&axp209 { + battery_power_supply: battery-power-supply { + compatible = "x-powers,axp209-battery-power-supply"; + monitored-battery = <&battery>; + } +};