Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754476AbaBLTre (ORCPT ); Wed, 12 Feb 2014 14:47:34 -0500 Received: from smtp.codeaurora.org ([198.145.11.231]:52423 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753561AbaBLTqt (ORCPT ); Wed, 12 Feb 2014 14:46:49 -0500 From: Josh Cartwright To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, Gilad Avidov , Sagar Dharia , Michael Bohan , linux-arm-kernel@lists.infradead.org, Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Rob Landley , devicetree@vger.kernel.org, linux-doc@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> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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>; + }; -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/