From patchwork Wed Mar 11 15:43:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 5986841 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 453E29F318 for ; Wed, 11 Mar 2015 15:44:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 67182203AD for ; Wed, 11 Mar 2015 15:44:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 739F7203AC for ; Wed, 11 Mar 2015 15:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751482AbbCKPoL (ORCPT ); Wed, 11 Mar 2015 11:44:11 -0400 Received: from foss.arm.com ([217.140.101.70]:46376 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751500AbbCKPoJ (ORCPT ); Wed, 11 Mar 2015 11:44:09 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 73D222B97; Wed, 11 Mar 2015 08:44:25 -0700 (PDT) Received: from approximate.cambridge.arm.com (approximate.cambridge.arm.com [10.1.209.148]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5501E3F7E6; Wed, 11 Mar 2015 08:44:07 -0700 (PDT) From: Marc Zyngier To: Benoit Cousson , Tony Lindgren , Nishanth Menon , Santosh Shilimkar , Jason Cooper , Thomas Gleixner , Rob Herring , Mark Rutland Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org Subject: [PATCH v6 6/7] DT: omap4/5: add binding for the wake-up generator Date: Wed, 11 Mar 2015 15:43:48 +0000 Message-Id: <1426088629-15377-7-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1426088629-15377-1-git-send-email-marc.zyngier@arm.com> References: <1426088629-15377-1-git-send-email-marc.zyngier@arm.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 Add a binding for the OMAP4/5 wake-up generator, which acts as an interrupt controller feeding into the GIC. Acked-by: Tony Lindgren Signed-off-by: Marc Zyngier --- .../interrupt-controller/ti,omap4-wugen-mpu | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu new file mode 100644 index 0000000..43effa0 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu @@ -0,0 +1,33 @@ +TI OMAP4 Wake-up Generator + +All TI OMAP4/5 (and their derivatives) an interrupt controller that +routes interrupts to the GIC, and also serves as a wakeup source. It +is also referred to as "WUGEN-MPU", hence the name of the binding. + +Reguired properties: + +- compatible : should contain at least "ti,omap4-wugen-mpu" or + "ti,omap5-wugen-mpu" +- reg : Specifies base physical address and size of the registers. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells : Specifies the number of cells needed to encode an + interrupt source. The value must be 3. +- interrupt-parent : a phandle to the GIC these interrupts are routed + to. + +Notes: + +- Because this HW ultimately routes interrupts to the GIC, the + interrupt specifier must be that of the GIC. +- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs + are explicitly forbiden. + +Example: + + wakeupgen: interrupt-controller@48281000 { + compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu"; + interrupt-controller; + #interrupt-cells = <3>; + reg = <0x48281000 0x1000>; + interrupt-parent = <&gic>; + };