From patchwork Mon Feb 3 23:05:37 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Cartwright X-Patchwork-Id: 3572451 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 [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 25D24C02DC for ; Mon, 3 Feb 2014 23:10:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 51CC22016C for ; Mon, 3 Feb 2014 23:10:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ACD3520163 for ; Mon, 3 Feb 2014 23:10:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753876AbaBCXJd (ORCPT ); Mon, 3 Feb 2014 18:09:33 -0500 Received: from smtp.codeaurora.org ([198.145.11.231]:46516 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753826AbaBCXI7 (ORCPT ); Mon, 3 Feb 2014 18:08:59 -0500 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id B718013F259; Mon, 3 Feb 2014 23:08:58 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id A90EB13F291; Mon, 3 Feb 2014 23:08:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from joshc.qualcomm.com (rrcs-67-52-129-61.west.biz.rr.com [67.52.129.61]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: joshc@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 331C013F259; Mon, 3 Feb 2014 23:08:58 +0000 (UTC) Received: by joshc.qualcomm.com (Postfix, from userid 1000) id 180BB61424; Mon, 3 Feb 2014 17:05:41 -0600 (CST) From: Josh Cartwright To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Sagar Dharia , Gilad Avidov , Michael Bohan , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Rob Landley , devicetree@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v5 5/6] spmi: document the PMIC arbiter SPMI bindings Date: Mon, 3 Feb 2014 17:05:37 -0600 Message-Id: <1391468739-20987-6-git-send-email-joshc@codeaurora.org> X-Mailer: git-send-email 1.8.4.2 In-Reply-To: <1391468739-20987-1-git-send-email-joshc@codeaurora.org> References: <1391468739-20987-1-git-send-email-joshc@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Josh Cartwright --- .../bindings/spmi/qcom,spmi-pmic-arb.txt | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt new file mode 100644 index 0000000..a0a5759 --- /dev/null +++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt @@ -0,0 +1,60 @@ +Qualcomm SPMI Controller (PMIC Arbiter) + +The SPMI PMIC Arbiter is found on the Snapdragon 800 Series. It is an SPMI +controller with wrapping arbitration logic to allow for multiple on-chip +devices to control a single SPMI master. + +The PMIC Arbiter can also act as an interrupt controller, providing interrupts +to slave devices. + +See spmi.txt for the generic SPMI controller binding requirements for child +nodes. + +See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for +generic interrupt controller binding documentation. + +Required properties: +- compatible : should be "qcom,spmi-pmic-arb". +- reg-names : should be "core", "intr", "cnfg" +- reg : register specifiers, must contain: + "core" - core registers + "intr" - interrupt controller registers + "cnfg" - configuration registers +- #address-cells : must be set to 2 +- #size-cells : must be set to 0 +- qcom,ee : indicates the active Execution Environment identifier (0-5) +- qcom,channel : which of the PMIC Arb provided channels to use for accesses (0-5) +- interrupts : interrupt list for the PMIC Arb controller, must contain a + single interrupt entry for the peripheral interrupt +- interrupt-names : corresponding interrupt names for the interrupts + listed in the 'interrupts' property, must contain: + "periph_irq" - summary interrupt for PMIC peripherals +- interrupt-controller : boolean indicator that the PMIC arbiter is an interrupt controller +- #interrupt-cells : must be set to 4. Interrupts are specified as a 4-tuple: + cell 1: slave ID for the requested interrupt (0-15) + cell 2: peripheral ID for requested interrupt (0-255) + cell 3: the requested peripheral interrupt (0-7) + cell 4: interrupt flags indicating level-sense information, as defined in + dt-bindings/interrupt-controller/irq.h + +Example: + + spmi { + compatible = "qcom,spmi-pmic-arb"; + reg-names = "core", "intr", "cnfg"; + reg = <0xfc4cf000 0x1000>, + <0xfc4cb000 0x1000>, + <0xfc4ca000 0x1000>; + + interrupt-names = "periph_irq"; + interrupts = <0 190 0>; + + qcom,ee = <0>; + qcom,channel = <0>; + + #address-cells = <2>; + #size-cells = <0>; + + interrupt-controller; + #interrupt-cells = <4>; + };