From patchwork Tue Feb 12 06:43:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Zhang X-Patchwork-Id: 1040407 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="M8iKQrp4"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43zCnN4jVYz9sNx for ; Tue, 12 Feb 2019 17:44:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727511AbfBLGoX (ORCPT ); Tue, 12 Feb 2019 01:44:23 -0500 Received: from hqemgate14.nvidia.com ([216.228.121.143]:18214 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727247AbfBLGoX (ORCPT ); Tue, 12 Feb 2019 01:44:23 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 11 Feb 2019 22:44:25 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 11 Feb 2019 22:44:22 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 11 Feb 2019 22:44:22 -0800 Received: from HQMAIL106.nvidia.com (172.18.146.12) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 12 Feb 2019 06:44:22 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL106.nvidia.com (172.18.146.12) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Tue, 12 Feb 2019 06:44:21 +0000 Received: from localhost.localdomain (Not Verified[10.19.225.143]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Mon, 11 Feb 2019 22:44:21 -0800 From: Mark Zhang To: , , , , CC: , Mark Zhang Subject: [PATCH v3 2/4] mfd: max77620: add documentation for backup battery charging Date: Tue, 12 Feb 2019 14:43:51 +0800 Message-ID: <20190212064353.7451-3-markz@nvidia.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190212064353.7451-1-markz@nvidia.com> References: <20190212064353.7451-1-markz@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1549953865; bh=ANirisXvocDuNFpdMKLePowAQRhdm/3JS5zOx9KrepU=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:X-NVConfidentiality: Content-Transfer-Encoding:Content-Type; b=M8iKQrp44+Kcf3w3aGtSIbxaawC8haYUCJ5uDuk0sEbAs/CwuN3DHXpEW1RFKyfZz LORMct2+/7bB0x+SvUgbU+TEkr0pFxVuZdDU+69+KX4sdYYvBpNfJcC0dFEgvo476F 56I4cQX1Kjn+XrYdKCHvlPhrXVItOvY9rUEoohtLwaVPlgt3lr1ES4lcY+vv0Y4qNj KaMjDjWoIv9Wdb2OvzvywdV3ojtgEZjagbazgcAEzusTEsZ20fDcu3+KIBwzo5rDma ovxsnDGT0CHsh1xHPBV0jgDhCnz7YCmpPZMrEeJ3GQfsCVAsLxZlTdkUkytiNCu6Pz 9sNHMopQwL8Sw== Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Adding documentation for 3 new backup battery charging dts properties: - maxim,charging-current-microamp - maxim,charging-voltage-microvolt - maxim,output-resister-ohms Signed-off-by: Mark Zhang --- .../devicetree/bindings/mfd/max77620.txt | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/max77620.txt b/Documentation/devicetree/bindings/mfd/max77620.txt index 9c16d51cc15b..88825eaf2567 100644 --- a/Documentation/devicetree/bindings/mfd/max77620.txt +++ b/Documentation/devicetree/bindings/mfd/max77620.txt @@ -122,6 +122,26 @@ For DT binding details of different sub modules like GPIO, pincontrol, regulator, power, please refer respective device-tree binding document under their respective sub-system directories. +Backup Battery: +============== +This sub-node configure charging backup battery of the device. Device has +support of charging the backup battery. The subnode name is "backup-battery". +The property for backup-battery child nodes as: +Presence of this child node will enable the backup battery charging. + +Optional properties: + -maxim,charging-current-microamp: Charging current setting. + The device supports 50/100/200/400/600/800uA. + If this property is unavailable then it will + charge with 50uA. + -maxim,charging-voltage-microvolt: Charging Voltage Limit Setting. + Device supports 2500000/3000000/3300000/350000uV. + Default will be set to 2500mV. The voltage will be roundoff + to nearest lower side if other than above is configured. + -maxim,output-resister-ohms: Output resistor on Ohm. + Device supports 100/1000/3000/6000 Ohms. + Default will be set to 1000 Ohm. + Example: -------- #include