From patchwork Wed Feb 12 19:44:26 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Cartwright X-Patchwork-Id: 3640511 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CB7139F38E for ; Wed, 12 Feb 2014 19:48:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F08E420213 for ; Wed, 12 Feb 2014 19:48:48 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0301720219 for ; Wed, 12 Feb 2014 19:48:48 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WDfmf-00083b-9E; Wed, 12 Feb 2014 19:47:49 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WDfmT-0007On-B3; Wed, 12 Feb 2014 19:47:37 +0000 Received: from smtp.codeaurora.org ([198.145.11.231]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WDfm0-0007KY-4p for linux-arm-kernel@lists.infradead.org; Wed, 12 Feb 2014 19:47:10 +0000 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id C0D5113EFFF; Wed, 12 Feb 2014 19:46:48 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id AE2CA13F26A; Wed, 12 Feb 2014 19:46:48 +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=-1.8 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_MED, 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 3838713F305; Wed, 12 Feb 2014 19:46:48 +0000 (UTC) Received: by joshc.qualcomm.com (Postfix, from userid 1000) id 031B1613F9; Wed, 12 Feb 2014 13:44:29 -0600 (CST) From: Josh Cartwright To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Subject: [PATCH v6 5/6] spmi: document the PMIC arbiter SPMI bindings Date: Wed, 12 Feb 2014 13:44:26 -0600 Message-Id: <1392234267-10880-6-git-send-email-joshc@codeaurora.org> X-Mailer: git-send-email 1.8.5.4 In-Reply-To: <1392234267-10880-1-git-send-email-joshc@codeaurora.org> References: <1392234267-10880-1-git-send-email-joshc@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140212_144708_513589_3A75E0AE X-CRM114-Status: GOOD ( 12.55 ) X-Spam-Score: 0.5 (/) Cc: Mark Rutland , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , linux-arm-msm@vger.kernel.org, Gilad Avidov , linux-doc@vger.kernel.org, Rob Herring , Michael Bohan , Rob Landley , Kumar Gala , Sagar Dharia , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Josh Cartwright --- .../bindings/spmi/qcom,spmi-pmic-arb.txt | 61 ++++++++++++++++++++++ 1 file changed, 61 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..715d099 --- /dev/null +++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt @@ -0,0 +1,61 @@ +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 : must contain: + "core" - core registers + "intr" - interrupt controller registers + "cnfg" - configuration registers +- reg : address + size pairs describing the PMIC arb register sets; order must + correspond with the order of entries in reg-names +- #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>; + };