From patchwork Wed Oct 16 20:06:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring (Arm)" X-Patchwork-Id: 11194177 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A439414DB for ; Wed, 16 Oct 2019 20:06:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8670D218DE for ; Wed, 16 Oct 2019 20:06:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571256419; bh=wjOgXaStTAtbMw6yoJaqMlTPwZ2OskfJjCwfzlDIVBQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=zvn2PiSgi99JaSfb0EfOoWHLxnwZmd7xiQ6kinJfICwFSPbl+8T+/+kZUKTSAsJyb l74/F+5v6QBRqHWZII9zuu8v077tGpOxIUXRg+09utdnS/0zh6d6SeNowiYNJhPXt/ Gk91pvfy/Cn11O+FvmyYWHR5oYdUbBatzj4AJFEY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731038AbfJPUG7 (ORCPT ); Wed, 16 Oct 2019 16:06:59 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:33409 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727861AbfJPUG7 (ORCPT ); Wed, 16 Oct 2019 16:06:59 -0400 Received: by mail-oi1-f195.google.com with SMTP id a15so151124oic.0; Wed, 16 Oct 2019 13:06:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Y8FNka9VqW+GuyHhrg3YYeRr9rwrH+ifXsb5oKqpMlo=; b=SR254zwID6gPPoHTmnpUdII2MkowoPVNTov4yvVvYIHdW/sd2Dmr17gykrC2pQNB1E N/UZlrfEyhwSIVg0r/IVB8iR6b5Jn5qSJdFkieDWZ4uJb8fN8zDJylUbSemV14KRQfNb 5mk1ACwz53RBjepk+PH3x+wb9TJGFFvGm8fpw932ZzZnwx6jWNXjSmzlnRYH326d0Eig 6/dYRI6zhcdC/5KrqQ1CDCBH8eK8RxG3FyygSOJoFej3hUl6WzEFhwj85F8jG50Y8a/c bnJ70Zt6fIU4yI2LzqEwbXN3RiEhRGfzY1C3f3p5jRsJwSkJC7n9Tbtne0ol0SRAeeLz uIdQ== X-Gm-Message-State: APjAAAUO/eLv+WU78N4UioHLni/J3ZIJw3kwUGO+YN8ZyLrFT/jq58Yv kQ7mabdajgi5+gDLAmew2g== X-Google-Smtp-Source: APXvYqzc9DljeRamNGQhKMqYgFDrgBknywXfEh7A/JzfYtpSVkL4yhW0fSLoDM17Am/QQ1EZMJUAfw== X-Received: by 2002:aca:4042:: with SMTP id n63mr111564oia.124.1571256416346; Wed, 16 Oct 2019 13:06:56 -0700 (PDT) Received: from xps15.herring.priv (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.googlemail.com with ESMTPSA id a9sm7412463oie.7.2019.10.16.13.06.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Oct 2019 13:06:55 -0700 (PDT) From: Rob Herring To: Andrew Murray , Bjorn Helgaas , Lorenzo Pieralisi Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Gustavo Pimentel , Heiko Stuebner , Hou Zhiqiang , Jingoo Han , Karthikeyan Mitran , Ley Foon Tan , Linus Walleij , linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Matthias Brugger , Michal Simek , Ray Jui , rfi@lists.rocketboards.org, Ryder Lee , Scott Branden , Shawn Lin , Simon Horman , Srinath Mannam , Thomas Petazzoni , Toan Le , Tom Joseph , Will Deacon Subject: [PATCH v2 03/25] PCI: aardvark: Use pci_parse_request_of_pci_ranges() Date: Wed, 16 Oct 2019 15:06:25 -0500 Message-Id: <20191016200647.32050-4-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191016200647.32050-1-robh@kernel.org> References: <20191016200647.32050-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Convert aardvark to use the common pci_parse_request_of_pci_ranges(). There's no need to assign the resources to a temporary list first. Just use bridge->windows directly and remove all the temporary list handling. Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Tested-by: Thomas Petazzoni Reviewed-by: Andrew Murray Signed-off-by: Rob Herring --- v2: - Remove the temporary list --- drivers/pci/controller/pci-aardvark.c | 60 ++------------------------- 1 file changed, 4 insertions(+), 56 deletions(-) diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index fc0fe4d4de49..9cbeba507f0c 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -186,7 +186,6 @@ struct advk_pcie { struct platform_device *pdev; void __iomem *base; - struct list_head resources; struct irq_domain *irq_domain; struct irq_chip irq_chip; struct irq_domain *msi_domain; @@ -910,63 +909,11 @@ static irqreturn_t advk_pcie_irq_handler(int irq, void *arg) return IRQ_HANDLED; } -static int advk_pcie_parse_request_of_pci_ranges(struct advk_pcie *pcie) -{ - int err, res_valid = 0; - struct device *dev = &pcie->pdev->dev; - struct resource_entry *win, *tmp; - resource_size_t iobase; - - INIT_LIST_HEAD(&pcie->resources); - - err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, - &pcie->resources, &iobase); - if (err) - return err; - - err = devm_request_pci_bus_resources(dev, &pcie->resources); - if (err) - goto out_release_res; - - resource_list_for_each_entry_safe(win, tmp, &pcie->resources) { - struct resource *res = win->res; - - switch (resource_type(res)) { - case IORESOURCE_IO: - err = devm_pci_remap_iospace(dev, res, iobase); - if (err) { - dev_warn(dev, "error %d: failed to map resource %pR\n", - err, res); - resource_list_destroy_entry(win); - } - break; - case IORESOURCE_MEM: - res_valid |= !(res->flags & IORESOURCE_PREFETCH); - break; - case IORESOURCE_BUS: - pcie->root_bus_nr = res->start; - break; - } - } - - if (!res_valid) { - dev_err(dev, "non-prefetchable memory resource required\n"); - err = -EINVAL; - goto out_release_res; - } - - return 0; - -out_release_res: - pci_free_resource_list(&pcie->resources); - return err; -} - static int advk_pcie_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct advk_pcie *pcie; - struct resource *res; + struct resource *res, *bus; struct pci_host_bridge *bridge; int ret, irq; @@ -991,11 +938,13 @@ static int advk_pcie_probe(struct platform_device *pdev) return ret; } - ret = advk_pcie_parse_request_of_pci_ranges(pcie); + ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, + &bus); if (ret) { dev_err(dev, "Failed to parse resources\n"); return ret; } + pcie->root_bus_nr = bus->start; advk_pcie_setup_hw(pcie); @@ -1014,7 +963,6 @@ static int advk_pcie_probe(struct platform_device *pdev) return ret; } - list_splice_init(&pcie->resources, &bridge->windows); bridge->dev.parent = dev; bridge->sysdata = pcie; bridge->busnr = 0;