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 <[email protected]> Cc: Bjorn Helgaas <[email protected]> Tested-by: Thomas Petazzoni <[email protected]> Reviewed-by: Andrew Murray <[email protected]> Signed-off-by: Rob Herring <[email protected]> --- 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; -- 2.20.1
