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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id s66sm976787otb.65.2019.09.24.14.46.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Sep 2019 14:46:35 -0700 (PDT) From: Rob Herring To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi Subject: [PATCH 03/11] PCI: mediatek: Use pci_parse_request_of_pci_ranges() Date: Tue, 24 Sep 2019 16:46:22 -0500 Message-Id: <20190924214630.12817-4-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190924214630.12817-1-robh@kernel.org> References: <20190924214630.12817-1-robh@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190924_144636_896440_7CDA2768 X-CRM114-Status: GOOD ( 12.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Matthias Brugger , Ryder Lee , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Convert Mediatek host bridge to use the common pci_parse_request_of_pci_ranges(). Cc: Ryder Lee Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Matthias Brugger Cc: linux-mediatek@lists.infradead.org Signed-off-by: Rob Herring --- drivers/pci/controller/pcie-mediatek.c | 47 ++++++++++---------------- 1 file changed, 17 insertions(+), 30 deletions(-) diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 80601e1b939e..cea4112b5309 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -211,7 +211,6 @@ struct mtk_pcie { void __iomem *base; struct clk *free_ck; - struct resource mem; struct list_head ports; const struct mtk_pcie_soc *soc; unsigned int busnr; @@ -658,11 +657,23 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port, static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port) { struct mtk_pcie *pcie = port->pcie; - struct resource *mem = &pcie->mem; + struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie); + struct resource *mem = NULL; + struct resource_entry *entry; const struct mtk_pcie_soc *soc = port->pcie->soc; u32 val; int err; + resource_list_for_each_entry(entry, &host->windows) { + if (resource_type(entry->res) != IORESOURCE_MEM) + continue; + + mem = entry->res; + break; + } + if (!mem) + return -EINVAL; + /* MT7622 platforms need to enable LTSSM and ASPM from PCIe subsys */ if (pcie->base) { val = readl(pcie->base + PCIE_SYS_CFG_V2); @@ -1017,39 +1028,15 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie) struct mtk_pcie_port *port, *tmp; struct pci_host_bridge *host = pci_host_bridge_from_priv(pcie); struct list_head *windows = &host->windows; - struct resource_entry *win, *tmp_win; - resource_size_t io_base; + struct resource *bus; int err; - err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff, - windows, &io_base); + err = pci_parse_request_of_pci_ranges(dev, windows, + &bus); if (err) return err; - err = devm_request_pci_bus_resources(dev, windows); - if (err < 0) - return err; - - /* Get the I/O and memory ranges from DT */ - resource_list_for_each_entry_safe(win, tmp_win, windows) { - switch (resource_type(win->res)) { - case IORESOURCE_IO: - err = devm_pci_remap_iospace(dev, win->res, io_base); - if (err) { - dev_warn(dev, "error %d: failed to map resource %pR\n", - err, win->res); - resource_list_destroy_entry(win); - } - break; - case IORESOURCE_MEM: - memcpy(&pcie->mem, win->res, sizeof(*win->res)); - pcie->mem.name = "non-prefetchable"; - break; - case IORESOURCE_BUS: - pcie->busnr = win->res->start; - break; - } - } + pcie->busnr = bus->start; for_each_available_child_of_node(node, child) { int slot; -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel