From patchwork Thu Jul 17 16:17:33 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanimir Varbanov X-Patchwork-Id: 371219 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 68C8D14008C for ; Fri, 18 Jul 2014 02:24:25 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965423AbaGQQYC (ORCPT ); Thu, 17 Jul 2014 12:24:02 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:34822 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964960AbaGQQYA (ORCPT ); Thu, 17 Jul 2014 12:24:00 -0400 Received: from localhost.localdomain (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 8A160C7D7; Thu, 17 Jul 2014 19:23:58 +0300 (EEST) From: Stanimir Varbanov To: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Lee Jones , Samuel Ortiz Cc: Ian Campbell , Pawel Moll , Rob Herring , Kumar Gala , Mark Rutland , Grant Likely , Courtney Cavin , Bjorn Andersson , Josh Cartwright , Stanimir Varbanov Subject: [PATCH v2 2/4] mfd: pm8xxx-spmi: document DT bindings for Qualcomm SPMI PMICs Date: Thu, 17 Jul 2014 19:17:33 +0300 Message-Id: <1405613855-27572-3-git-send-email-svarbanov@mm-sol.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1405613855-27572-1-git-send-email-svarbanov@mm-sol.com> References: <1405613855-27572-1-git-send-email-svarbanov@mm-sol.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document DT bindings used to describe the Qualcomm SPMI PMICs. Currently the SPMI PMICs supported are pm8941, pm8841 and pma8084. Signed-off-by: Stanimir Varbanov --- .../devicetree/bindings/mfd/qcom,pm8xxx-spmi.txt | 49 ++++++++++++++++++++ 1 files changed, 49 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/qcom,pm8xxx-spmi.txt diff --git a/Documentation/devicetree/bindings/mfd/qcom,pm8xxx-spmi.txt b/Documentation/devicetree/bindings/mfd/qcom,pm8xxx-spmi.txt new file mode 100644 index 0000000..2b7f5b6 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/qcom,pm8xxx-spmi.txt @@ -0,0 +1,49 @@ + Qualcomm PM8XXX SPMI PMICs multi-function device bindings + +The Qualcomm PM8XXX series presently includes PM8941, PM8841 and PMA8084 +PMICs. These PMICs use a QPNP scheme through SPMI interface. +QPNP is effectively a partitioning scheme for dividing the SPMI extended +register space up into logical pieces, and set of fixed register +locations/definitions within these regions, with some of these regions +specifically used for interrupt handling. + +The QPNP PMICs are used with the Qualcomm Snapdragon series SoCs, and are +interfaced to the chip via the SPMI (System Power Management Interface) bus. +Support for multiple independent functions are implemented by splitting the +16-bit SPMI slave address space into 256 smaller fixed-size regions, 256 bytes +each. A function can consume one or more of these fixed-size register regions. + +Required properties: +- compatible: Should contain one of: + "qcom,pm8941" + "qcom,pm8841" + "qcom,pma8084" +- reg: Specifies the SPMI USID slave address for this device. + For more information see: + Documentation/devicetree/bindings/spmi/spmi.txt + +Required properties for peripheral child nodes: +- compatible: Should contain "qcom,pm8xxx-xxx", where "xxx" is + peripheral name. The "pm8xxx" can be any of supported PMICs, + see example below. + +Optional properties for peripheral child nodes: +- interrupts: Interrupts are specified as a 4-tuple. For more information + see: + Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt +- interrupt-names: Corresponding interrupt name to the interrupts property + +Each child node represents a function of the PMIC. + +Example: + + pm8941@0 { + compatible = "qcom,pm8941"; + reg = <0x0 SPMI_USID>; + + rtc { + compatible = "qcom,pm8941-rtc"; + interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "alarm"; + }; + };