From patchwork Tue May 15 09:07:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 10400507 X-Patchwork-Delegate: bhelgaas@google.com 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 C4264600F4 for ; Tue, 15 May 2018 09:10:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9FA2E28718 for ; Tue, 15 May 2018 09:10:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C87928749; Tue, 15 May 2018 09:10:23 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A368228765 for ; Tue, 15 May 2018 09:10:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752632AbeEOJKQ (ORCPT ); Tue, 15 May 2018 05:10:16 -0400 Received: from goliath.siemens.de ([192.35.17.28]:36193 "EHLO goliath.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752162AbeEOJIV (ORCPT ); Tue, 15 May 2018 05:08:21 -0400 Received: from mail1.siemens.de (mail1.siemens.de [139.23.33.14]) by goliath.siemens.de (8.15.2/8.15.2) with ESMTPS id w4F983BR020754 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 May 2018 11:08:04 +0200 Received: from md1f2u6c.ww002.siemens.net ([167.87.129.255]) by mail1.siemens.de (8.15.2/8.15.2) with ESMTP id w4F97lZO011567; Tue, 15 May 2018 11:08:01 +0200 From: Jan Kiszka To: Bjorn Helgaas , Linux Kernel Mailing List , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Vladimir Zapolskiy , Jingoo Han , Joao Pinto , Lorenzo Pieralisi Subject: [PATCH v4 4/8] PCI: Replace dev_node parameter of of_pci_get_host_bridge_resources with device Date: Tue, 15 May 2018 11:07:03 +0200 Message-Id: <5f2226585c6af9920b266d0503e32042d4c9e440.1526375226.git.jan.kiszka@siemens.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: References: In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jan Kiszka Another step towards a managed version of of_pci_get_host_bridge_resources(): Feed in the underlying device, rather than just the OF node. This will allow to use managed resource allocation internally later on. CC: Jingoo Han CC: Joao Pinto CC: Lorenzo Pieralisi Signed-off-by: Jan Kiszka Tested-by: Vladimir Zapolskiy Reviewed-by: Vladimir Zapolskiy Acked-by: Jingoo Han --- drivers/pci/dwc/pcie-designware-host.c | 2 +- drivers/pci/host/pci-aardvark.c | 5 ++--- drivers/pci/host/pci-ftpci100.c | 4 ++-- drivers/pci/host/pci-v3-semi.c | 3 ++- drivers/pci/host/pci-versatile.c | 3 +-- drivers/pci/host/pci-xgene.c | 3 ++- drivers/pci/host/pcie-altera.c | 5 ++--- drivers/pci/host/pcie-iproc-platform.c | 4 ++-- drivers/pci/host/pcie-rcar.c | 5 ++--- drivers/pci/host/pcie-rockchip.c | 4 ++-- drivers/pci/host/pcie-xilinx-nwl.c | 4 ++-- drivers/pci/host/pcie-xilinx.c | 4 ++-- drivers/pci/of.c | 9 +++++---- include/linux/of_pci.h | 4 ++-- 14 files changed, 29 insertions(+), 30 deletions(-) diff --git a/drivers/pci/dwc/pcie-designware-host.c b/drivers/pci/dwc/pcie-designware-host.c index 6c409079d514..5a535690b7b5 100644 --- a/drivers/pci/dwc/pcie-designware-host.c +++ b/drivers/pci/dwc/pcie-designware-host.c @@ -342,7 +342,7 @@ int dw_pcie_host_init(struct pcie_port *pp) if (!bridge) return -ENOMEM; - ret = of_pci_get_host_bridge_resources(np, 0, 0xff, + ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &bridge->windows, &pp->io_base); if (ret) return ret; diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c index 9abf549631b4..39d8fc2a8a76 100644 --- a/drivers/pci/host/pci-aardvark.c +++ b/drivers/pci/host/pci-aardvark.c @@ -822,14 +822,13 @@ 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 device_node *np = dev->of_node; struct resource_entry *win, *tmp; resource_size_t iobase; INIT_LIST_HEAD(&pcie->resources); - err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pcie->resources, - &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, + &pcie->resources, &iobase); if (err) return err; diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c index 5008fd87956a..5c176f806fe5 100644 --- a/drivers/pci/host/pci-ftpci100.c +++ b/drivers/pci/host/pci-ftpci100.c @@ -476,8 +476,8 @@ static int faraday_pci_probe(struct platform_device *pdev) if (IS_ERR(p->base)) return PTR_ERR(p->base); - ret = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff, - &res, &io_base); + ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, + &res, &io_base); if (ret) return ret; diff --git a/drivers/pci/host/pci-v3-semi.c b/drivers/pci/host/pci-v3-semi.c index 0a4dea796663..f3f39935ac2f 100644 --- a/drivers/pci/host/pci-v3-semi.c +++ b/drivers/pci/host/pci-v3-semi.c @@ -791,7 +791,8 @@ static int v3_pci_probe(struct platform_device *pdev) if (IS_ERR(v3->config_base)) return PTR_ERR(v3->config_base); - ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &io_base); + ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res, + &io_base); if (ret) return ret; diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c index 5b3876f5312b..ef33ec0a9e1b 100644 --- a/drivers/pci/host/pci-versatile.c +++ b/drivers/pci/host/pci-versatile.c @@ -64,11 +64,10 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev, struct list_head *res) { int err, mem = 1, res_valid = 0; - struct device_node *np = dev->of_node; resource_size_t iobase; struct resource_entry *win, *tmp; - err = of_pci_get_host_bridge_resources(np, 0, 0xff, res, &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, res, &iobase); if (err) return err; diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index 0a0d7ee6d3c9..88e9a6d315b3 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -632,7 +632,8 @@ static int xgene_pcie_probe(struct platform_device *pdev) if (ret) return ret; - ret = of_pci_get_host_bridge_resources(dn, 0, 0xff, &res, &iobase); + ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res, + &iobase); if (ret) return ret; diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c index a6af62e0256d..61802e55a00c 100644 --- a/drivers/pci/host/pcie-altera.c +++ b/drivers/pci/host/pcie-altera.c @@ -488,11 +488,10 @@ static int altera_pcie_parse_request_of_pci_ranges(struct altera_pcie *pcie) { int err, res_valid = 0; struct device *dev = &pcie->pdev->dev; - struct device_node *np = dev->of_node; struct resource_entry *win; - err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pcie->resources, - NULL); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff + &pcie->resources, NULL); if (err) return err; diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c index e764a2a2693c..cec0130326c9 100644 --- a/drivers/pci/host/pcie-iproc-platform.c +++ b/drivers/pci/host/pcie-iproc-platform.c @@ -99,8 +99,8 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) pcie->phy = NULL; } - ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &resources, - &iobase); + ret = of_pci_get_host_bridge_resources(dev, 0, 0xff, &resources, + &iobase); if (ret) { dev_err(dev, "unable to get PCI host bridge resources\n"); return ret; diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c index 6ab28f29ac6a..4c1787e021fd 100644 --- a/drivers/pci/host/pcie-rcar.c +++ b/drivers/pci/host/pcie-rcar.c @@ -1067,12 +1067,11 @@ static int rcar_pcie_parse_request_of_pci_ranges(struct rcar_pcie *pci) { int err; struct device *dev = pci->dev; - struct device_node *np = dev->of_node; resource_size_t iobase; struct resource_entry *win, *tmp; - err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pci->resources, - &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, + &pci->resources, &iobase); if (err) return err; diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c index f1e8f97ea1fb..abac972f0dc2 100644 --- a/drivers/pci/host/pcie-rockchip.c +++ b/drivers/pci/host/pcie-rockchip.c @@ -1560,8 +1560,8 @@ static int rockchip_pcie_probe(struct platform_device *pdev) if (err < 0) goto err_deinit_port; - err = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff, - &res, &io_base); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, + &res, &io_base); if (err) goto err_remove_irq_domain; diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c index 4839ae578711..6aea997cd21b 100644 --- a/drivers/pci/host/pcie-xilinx-nwl.c +++ b/drivers/pci/host/pcie-xilinx-nwl.c @@ -825,7 +825,6 @@ static const struct of_device_id nwl_pcie_of_match[] = { static int nwl_pcie_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *node = dev->of_node; struct nwl_pcie *pcie; struct pci_bus *bus; struct pci_bus *child; @@ -855,7 +854,8 @@ static int nwl_pcie_probe(struct platform_device *pdev) return err; } - err = of_pci_get_host_bridge_resources(node, 0, 0xff, &res, &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res, + &iobase); if (err) { dev_err(dev, "Getting bridge resources failed\n"); return err; diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c index 0ad188effc09..fa5e44a480a4 100644 --- a/drivers/pci/host/pcie-xilinx.c +++ b/drivers/pci/host/pcie-xilinx.c @@ -643,8 +643,8 @@ static int xilinx_pcie_probe(struct platform_device *pdev) return err; } - err = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff, &res, - &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, &res, + &iobase); if (err) { dev_err(dev, "Getting bridge resources failed\n"); return err; diff --git a/drivers/pci/of.c b/drivers/pci/of.c index 8d4778ef5806..ac97491ba377 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -245,7 +245,7 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only); #if defined(CONFIG_OF_ADDRESS) /** * of_pci_get_host_bridge_resources - Parse PCI host bridge resources from DT - * @dev_node: device node of the host bridge having the range property + * @dev: host bridge device * @busno: bus number associated with the bridge root bus * @bus_max: maximum number of buses for this bridge * @resources: list where the range of resources will be added after DT parsing @@ -262,10 +262,11 @@ EXPORT_SYMBOL_GPL(of_pci_check_probe_only); * It returns zero if the range parsing has been successful or a standard error * value if it failed. */ -int of_pci_get_host_bridge_resources(struct device_node *dev_node, +int of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, struct list_head *resources, resource_size_t *io_base) { + struct device_node *dev_node = dev->of_node; struct resource_entry *window; struct resource *res; struct resource *bus_range; @@ -599,12 +600,12 @@ int pci_parse_request_of_pci_ranges(struct device *dev, struct resource **bus_range) { int err, res_valid = 0; - struct device_node *np = dev->of_node; resource_size_t iobase; struct resource_entry *win, *tmp; INIT_LIST_HEAD(resources); - err = of_pci_get_host_bridge_resources(np, 0, 0xff, resources, &iobase); + err = of_pci_get_host_bridge_resources(dev, 0, 0xff, resources, + &iobase); if (err) return err; diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h index 74eec1943ad2..e6684c68cb94 100644 --- a/include/linux/of_pci.h +++ b/include/linux/of_pci.h @@ -71,11 +71,11 @@ of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin) #endif #if defined(CONFIG_OF_ADDRESS) -int of_pci_get_host_bridge_resources(struct device_node *dev_node, +int of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, struct list_head *resources, resource_size_t *io_base); #else -static inline int of_pci_get_host_bridge_resources(struct device_node *dev_node, +static inline int of_pci_get_host_bridge_resources(struct device *dev, unsigned char busno, unsigned char bus_max, struct list_head *resources, resource_size_t *io_base) {