From patchwork Wed Jan 17 15:25:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 10169527 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 839A4603B5 for ; Wed, 17 Jan 2018 15:27:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72DCF285C8 for ; Wed, 17 Jan 2018 15:27:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 677152860F; Wed, 17 Jan 2018 15:27:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 21F58285F2 for ; Wed, 17 Jan 2018 15:27:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=SVf61RpgpXevMa5PGWtR38Vgv6016ba/oyhPBb43+uw=; b=q1wYa3LtTfrt2yAQQq8CjcDNp5 7NPXuL36qEy5FH9snC/Ts+cNM9GswoSROQw3lEVzdO2ziD116k3vlDhp84L3aY1MxPfqKmPjHHhBr HH/YxRSn4h29ENIsLbmaTiZMxLrLFpsQymBzy0ApM4xpgpshuVtu3BbwZoRHXa5hoARCwETNV/8t/ 0fcpa8Q3zTjglRwFzxhIOohe5pZAdSO0F5z3V+pwyvEKT8Lou7GA7L4d5+MOVapFNbER0aqJrxrQr lLORpZzP/N+NTofS1tJR/UVasr++3rMsavv2qI4yJxsLs1RR+xUA18n/yFBqGyTCn8gqu7sy/TvWL bKs7tAXQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1ebpcY-0006CM-Jr; Wed, 17 Jan 2018 15:27:22 +0000 Received: from regular1.263xmail.com ([211.150.99.130]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ebpbi-0004xC-Mm; Wed, 17 Jan 2018 15:26:36 +0000 Received: from jeffy.chen?rock-chips.com (unknown [192.168.167.139]) by regular1.263xmail.com (Postfix) with ESMTP id AAFD4B074; Wed, 17 Jan 2018 23:26:14 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id D28356C5; Wed, 17 Jan 2018 23:26:11 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <17bb98ba82c197e5d31b8e24e54944c4> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 19395GJWXX1; Wed, 17 Jan 2018 23:26:16 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org Subject: [PATCH v3 03/12] iommu/rockchip: Request irqs in rk_iommu_probe() Date: Wed, 17 Jan 2018 23:25:33 +0800 Message-Id: <20180117152542.26429-4-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180117152542.26429-1-jeffy.chen@rock-chips.com> References: <20180117152542.26429-1-jeffy.chen@rock-chips.com> X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xxm@rock-chips.com, Joerg Roedel , Jeffy Chen , tfiga@chromium.org, jcliang@chromium.org, linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org, robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org, Heiko Stuebner MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Move request_irq to the end of rk_iommu_probe(). Suggested-by: Robin Murphy Signed-off-by: Jeffy Chen --- Changes in v3: Loop platform_get_irq() as Robin suggested. Changes in v2: None drivers/iommu/rockchip-iommu.c | 38 +++++++++----------------------------- 1 file changed, 9 insertions(+), 29 deletions(-) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index c2ef3cbd4401..b743d82e6fe1 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -90,8 +90,6 @@ struct rk_iommu { struct device *dev; void __iomem **bases; int num_mmu; - int *irq; - int num_irq; bool reset_disabled; struct iommu_device iommu; struct list_head node; /* entry in rk_iommu_domain.iommus */ @@ -830,13 +828,6 @@ static int rk_iommu_attach_device(struct iommu_domain *domain, iommu->domain = domain; - for (i = 0; i < iommu->num_irq; i++) { - ret = devm_request_irq(iommu->dev, iommu->irq[i], rk_iommu_irq, - IRQF_SHARED, dev_name(dev), iommu); - if (ret) - return ret; - } - for (i = 0; i < iommu->num_mmu; i++) { rk_iommu_write(iommu->bases[i], RK_MMU_DTE_ADDR, rk_domain->dt_dma); @@ -885,9 +876,6 @@ static void rk_iommu_detach_device(struct iommu_domain *domain, } rk_iommu_disable_stall(iommu); - for (i = 0; i < iommu->num_irq; i++) - devm_free_irq(iommu->dev, iommu->irq[i], iommu); - iommu->domain = NULL; dev_dbg(dev, "Detached from iommu domain\n"); @@ -1138,7 +1126,7 @@ static int rk_iommu_probe(struct platform_device *pdev) struct rk_iommu *iommu; struct resource *res; int num_res = pdev->num_resources; - int err, i; + int err, i, irq; iommu = devm_kzalloc(dev, sizeof(*iommu), GFP_KERNEL); if (!iommu) @@ -1165,23 +1153,15 @@ static int rk_iommu_probe(struct platform_device *pdev) if (iommu->num_mmu == 0) return PTR_ERR(iommu->bases[0]); - iommu->num_irq = platform_irq_count(pdev); - if (iommu->num_irq < 0) - return iommu->num_irq; - if (iommu->num_irq == 0) - return -ENXIO; + i = 0; + while ((irq = platform_get_irq(pdev, i++)) != -ENXIO) { + if (irq < 0) + return irq; - iommu->irq = devm_kcalloc(dev, iommu->num_irq, sizeof(*iommu->irq), - GFP_KERNEL); - if (!iommu->irq) - return -ENOMEM; - - for (i = 0; i < iommu->num_irq; i++) { - iommu->irq[i] = platform_get_irq(pdev, i); - if (iommu->irq[i] < 0) { - dev_err(dev, "Failed to get IRQ, %d\n", iommu->irq[i]); - return -ENXIO; - } + err = devm_request_irq(iommu->dev, irq, rk_iommu_irq, + IRQF_SHARED, dev_name(dev), iommu); + if (err) + return err; } iommu->reset_disabled = device_property_read_bool(dev,