From patchwork Mon Dec 17 17:49:07 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hunter, Jon" X-Patchwork-Id: 1888191 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 8CD59DF266 for ; Mon, 17 Dec 2012 17:52:14 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tkeoe-0006JD-Ep; Mon, 17 Dec 2012 17:49:24 +0000 Received: from arroyo.ext.ti.com ([192.94.94.40]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TkeoV-0006IG-DH for linux-arm-kernel@lists.infradead.org; Mon, 17 Dec 2012 17:49:15 +0000 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id qBHHnDxc032417; Mon, 17 Dec 2012 11:49:13 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id qBHHnDN4001361; Mon, 17 Dec 2012 11:49:13 -0600 Received: from dlelxv23.itg.ti.com (172.17.1.198) by dfle73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.1.323.3; Mon, 17 Dec 2012 11:49:13 -0600 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv23.itg.ti.com (8.13.8/8.13.8) with ESMTP id qBHHnDn4016001; Mon, 17 Dec 2012 11:49:13 -0600 Received: from localhost (h16-20.vpn.ti.com [172.24.16.20]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id qBHHnCw28954; Mon, 17 Dec 2012 11:49:12 -0600 (CST) From: Jon Hunter To: Tony Lindgren , Benoit Cousson Subject: [PATCH V2 1/2] ARM: OMAP2+: Prepare for device-tree PMU support Date: Mon, 17 Dec 2012 11:49:07 -0600 Message-ID: <1355766548-5702-2-git-send-email-jon-hunter@ti.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1355766548-5702-1-git-send-email-jon-hunter@ti.com> References: <1355766548-5702-1-git-send-email-jon-hunter@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20121217_124915_577275_7B62735C X-CRM114-Status: GOOD ( 14.54 ) X-Spam-Score: -7.6 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.94.94.40 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: device-tree , linux-omap , Jon Hunter , linux-arm X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org If device-tree is present, then do not create the PMU device from within the OMAP specific PMU code. This is required to allow device-tree to create the PMU device from the PMU device-tree node. PMU is not currently supported for OMAP4430 (due to a dependency on having a cross-trigger interface driver) and so ensure that this indicated on boot with or without device-tree. Signed-off-by: Jon Hunter Acked-by: Tony Lindgren --- arch/arm/mach-omap2/pmu.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c index eb78ae7..1a0799c 100644 --- a/arch/arm/mach-omap2/pmu.c +++ b/arch/arm/mach-omap2/pmu.c @@ -11,6 +11,8 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ +#include + #include #include "soc.h" @@ -64,6 +66,15 @@ static int __init omap_init_pmu(void) unsigned oh_num; char **oh_names; + /* XXX Remove this check when the CTI driver is available */ + if (cpu_is_omap443x()) { + pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n"); + return 0; + } + + if (of_have_populated_dt()) + return 0; + /* * To create an ARM-PMU device the following HWMODs * are required for the various OMAP2+ devices. @@ -76,9 +87,6 @@ static int __init omap_init_pmu(void) if (cpu_is_omap443x()) { oh_num = ARRAY_SIZE(omap4430_pmu_oh_names); oh_names = omap4430_pmu_oh_names; - /* XXX Remove the next two lines when CTI driver available */ - pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n"); - return 0; } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) { oh_num = ARRAY_SIZE(omap3_pmu_oh_names); oh_names = omap3_pmu_oh_names;