From patchwork Mon Jan 2 16:37:07 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 9494159 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 67A2F60698 for ; Mon, 2 Jan 2017 21:33:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4DE9B223B2 for ; Mon, 2 Jan 2017 21:33:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3F78A26907; Mon, 2 Jan 2017 21:33:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD509223B2 for ; Mon, 2 Jan 2017 21:33:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933777AbdABVTN (ORCPT ); Mon, 2 Jan 2017 16:19:13 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:42813 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933430AbdABQiC (ORCPT ); Mon, 2 Jan 2017 11:38:02 -0500 Received: by mail.free-electrons.com (Postfix, from userid 110) id A688C2076A; Mon, 2 Jan 2017 17:38:02 +0100 (CET) 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 39C76206A8; Mon, 2 Jan 2017 17:38:02 +0100 (CET) From: Quentin Schulz To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, robh+dt@kernel.org, mark.rutland@arm.com, wens@csie.org, sre@kernel.org, linux@armlinux.org.uk, maxime.ripard@free-electrons.com, lee.jones@linaro.org Cc: Quentin Schulz , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, thomas.petazzoni@free-electrons.com, icenowy@aosc.xyz, bonbons@linux-vserver.org Subject: [PATCH 07/22] dt-bindings: power: supply: add AXP20X/AXP22X AC power supply Date: Mon, 2 Jan 2017 17:37:07 +0100 Message-Id: <20170102163723.7939-8-quentin.schulz@free-electrons.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170102163723.7939-1-quentin.schulz@free-electrons.com> References: <20170102163723.7939-1-quentin.schulz@free-electrons.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The X-Powers AXP20X and AXP22X PMICs have an AC entry to supply power to the board. They have a few registers dedicated to the status of the AC power supply. This adds the DT binding documentation for the AC power supply for AXP20X and AXP22X PMICs. Signed-off-by: Quentin Schulz --- .../bindings/power/supply/axp20x_ac_power.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt diff --git a/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt b/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt new file mode 100644 index 0000000..16d0de4 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/axp20x_ac_power.txt @@ -0,0 +1,28 @@ +AXP20X and AXP22X PMICs' AC power supply + +Required Properties: + - compatible: One of: + "x-powers,axp202-ac-power-supply" + "x-powers,axp221-ac-power-supply" + +More Required Properties for AXP20X PMICs: + - io-channels: phandles to ACIN voltage and current ADC channels + - io-channel-names = "acin_v", "acin_i"; + +This node is a subnode of the axp20x PMIC. + +The AXP20X can read the current current and voltage supplied by AC by +reading ADC channels from the AXP20X ADC. + +The AXP22X is only able to tell if an AC power supply is present and +usable. + +Example: + +&axp209 { + ac_power_supply: ac_power_supply { + compatible = "x-powers,axp202-ac-power-supply"; + io-channels = <&axp209_adc 0>, <&axp209_adc 1>; + io-channel-names = "acin_v", "acin_i"; + }; +};