From patchwork Mon Jan 19 09:44:06 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 5656141 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D6672C058D for ; Mon, 19 Jan 2015 09:45:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F351720389 for ; Mon, 19 Jan 2015 09:45:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F315E20328 for ; Mon, 19 Jan 2015 09:45:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752184AbbASJpJ (ORCPT ); Mon, 19 Jan 2015 04:45:09 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:37428 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751545AbbASJpH (ORCPT ); Mon, 19 Jan 2015 04:45:07 -0500 Received: from foss-smtp-na-1.foss.arm.com (unknown [10.80.61.8]) by foss-mx-na.foss.arm.com (Postfix) with ESMTP id C1E0BAB; Mon, 19 Jan 2015 03:45:03 -0600 (CST) Received: from collaborate-mta1.arm.com (highbank-bc01-b06.austin.arm.com [10.112.81.134]) by foss-smtp-na-1.foss.arm.com (Postfix) with ESMTP id 5B87B5FAD7; Mon, 19 Jan 2015 03:44:56 -0600 (CST) Received: from approximate.cambridge.arm.com (approximate.cambridge.arm.com [10.1.209.148]) by collaborate-mta1.arm.com (Postfix) with ESMTP id 61F1D13F824; Mon, 19 Jan 2015 03:44:53 -0600 (CST) From: Marc Zyngier To: Stephen Warren , Thierry Reding , Alexandre Courbot , Benoit Cousson , Tony Lindgren , Nishanth Menon , Santosh Shilimkar , Shawn Guo , Sascha Hauer , Kukjin Kim , Pankaj Dubey , Simon Horman , Magnus Damm , Linus Walleij , Michal Simek , Rob Herring , Mark Rutland , Jason Cooper , Thomas Gleixner Cc: Stefan Agner , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH v4 12/21] DT: omap4/5: add binding for the wake-up generator Date: Mon, 19 Jan 2015 09:44:06 +0000 Message-Id: <1421660655-21394-13-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1421660655-21394-1-git-send-email-marc.zyngier@arm.com> References: <1421660655-21394-1-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=ham 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 Signed-off-by: Marc Zyngier Acked-by: Tony Lindgren --- .../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>; + };