From patchwork Wed Jan 27 05:21:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 8130541 Return-Path: X-Original-To: patchwork-linux-arm@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 16840BEEE5 for ; Wed, 27 Jan 2016 05:23:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 55553202E6 for ; Wed, 27 Jan 2016 05:23:46 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 804AD202F2 for ; Wed, 27 Jan 2016 05:23:45 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aOIYd-0007ju-Fi; Wed, 27 Jan 2016 05:22:19 +0000 Received: from mail-gw3-out.broadcom.com ([216.31.210.64]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aOIYL-0007bv-BP for linux-arm-kernel@lists.infradead.org; Wed, 27 Jan 2016 05:22:02 +0000 X-IronPort-AV: E=Sophos;i="5.22,353,1449561600"; d="scan'208";a="86266845" Received: from irvexchcas08.broadcom.com (HELO IRVEXCHCAS08.corp.ad.broadcom.com) ([10.9.208.57]) by mail-gw3-out.broadcom.com with ESMTP; 26 Jan 2016 22:02:06 -0800 Received: from IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) by IRVEXCHCAS08.corp.ad.broadcom.com (10.9.208.57) with Microsoft SMTP Server (TLS) id 14.3.235.1; Tue, 26 Jan 2016 21:21:39 -0800 Received: from mail-irva-13.broadcom.com (10.10.10.20) by IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) with Microsoft SMTP Server id 14.3.235.1; Tue, 26 Jan 2016 21:21:40 -0800 Received: from anup-HP-Compaq-8100-Elite-CMT-PC.ban.broadcom.com (unknown [10.131.91.107]) by mail-irva-13.broadcom.com (Postfix) with ESMTP id DB8F840FE5; Tue, 26 Jan 2016 21:17:43 -0800 (PST) From: Anup Patel To: Catalin Marinas , Joerg Roedel , Will Deacon , Robin Murphy , Sricharan R , Linux IOMMU , Linux ARM Kernel Subject: [RFC PATCH 2/6] iommu/arm-smmu: Invoke DT probe from arm_smmu_of_setup() Date: Wed, 27 Jan 2016 10:51:15 +0530 Message-ID: <1453872079-27140-3-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1453872079-27140-1-git-send-email-anup.patel@broadcom.com> References: <1453872079-27140-1-git-send-email-anup.patel@broadcom.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160126_212201_578025_D2803DE5 X-CRM114-Status: GOOD ( 10.96 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Device Tree , Scott Branden , Pawel Moll , Ian Campbell , Ray Jui , Linux Kernel , Vikram Prakash , Rob Herring , BCM Kernel Feedback , Kumar Gala , Anup Patel Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 The SMMUv1/SMMUv2 driver is initialized very early using the IOMMU_OF_DECLARE() but the actual platform device is probed via normal DT probing. This patch uses of_platform_device_create() from arm_smmu_of_setup() to ensure that SMMU platform device is probed immediately. Signed-off-by: Anup Patel --- drivers/iommu/arm-smmu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 22b9668..9bdf6b2 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -1915,10 +1916,15 @@ static int __init arm_smmu_init(void) static int __init arm_smmu_of_setup(struct device_node *np) { + struct platform_device *pdev; if (!init_done) arm_smmu_init(); + pdev = of_platform_device_create(np, NULL, NULL); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + of_iommu_set_ops(np, &arm_smmu_ops); return 0;