From patchwork Tue Jul 14 23:26:18 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Bird, Tim" X-Patchwork-Id: 6790371 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D4B59C05AC for ; Tue, 14 Jul 2015 23:28:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B804E20642 for ; Tue, 14 Jul 2015 23:28:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D779D2063E for ; Tue, 14 Jul 2015 23:28:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752269AbbGNX2I (ORCPT ); Tue, 14 Jul 2015 19:28:08 -0400 Received: from seldrel01.sonyericsson.com ([37.139.156.2]:10793 "EHLO seldrel01.sonyericsson.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751694AbbGNX2I (ORCPT ); Tue, 14 Jul 2015 19:28:08 -0400 From: Tim Bird To: , , , CC: , , , , , Subject: [PATCH v2 1/3] ARM: dts: qcom: Add binding for the qcom coincell charger Date: Tue, 14 Jul 2015 16:26:18 -0700 Message-ID: <1436916380-3599-1-git-send-email-tim.bird@sonymobile.com> X-Mailer: git-send-email 1.8.2.2 MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 This binding is used to configure the driver for the coincell charger found in Qualcomm PMICs. Signed-off-by: Tim Bird --- Changes in v2: - remove 'qcom,' from example node name - Added reference to parent node pm8941@0 and binding doc for it .../bindings/power/qcom,coincell-charger.txt | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/qcom,coincell-charger.txt diff --git a/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt b/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt new file mode 100644 index 0000000..f0316c0 --- /dev/null +++ b/Documentation/devicetree/bindings/power/qcom,coincell-charger.txt @@ -0,0 +1,50 @@ +Qualcomm Coincell Charger: + +The hardware block controls charging for a coincell or capacitor that is +used to provide power backup for certain features of the power management +IC (PMIC) + +- compatible: + Usage: required + Value type: + Definition: must be: "qcom,pm8941-coincell" + +- reg: + Usage: required + Value type: + Definition: base address of the coincell charger registers + +- qcom,rset-ohms: + Usage: required + Value type: + Definition: resistance (in ohms) for current-limiting resistor + must be one of: 800, 1200, 1700, 2100 + +- qcom,vset-millivolts: + Usage: required + Value type: + Definition: voltage (in millivolts) to apply for charging + must be one of: 2500, 3000, 3100, 3200 + +- qcom,charge-enable: + Usage: optional + Value type: or + Definition: definining this property, with an optional non-zero + value, enables charging + +This charger is a sub-node of one of the 8941 PMIC blocks, and is specified +as a child node in DTS of that node. See ../mfd/qcom,spmi-pmic.txt and +../mfd/qcom-pm8xxx.txt + +Examples: + + pm8941@0 { + coincell@2800 { + compatible = "qcom,pm8941-coincell"; + reg = <0x2800>; + + qcom,rset-ohms = <2100>; + qcom,vset-millivolts = <3000>; + qcom,charge-enable; + }; + };