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PCI: dwc: Use pci_parse_request_of_pci_ranges() 

Convert the Designware host bridge to use the common
pci_parse_request_of_pci_ranges().

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Andrew Murray <andrew.murray@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Rob Herring 2019-10-28 11:32:36 -05:00 committed by Lorenzo Pieralisi
parent e634e3e0b7
commit 7fe71aa84b
1 changed files with 8 additions and 20 deletions
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28
drivers/pci/controller/dwc/pcie-designware-host.c
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@ -319,7 +319,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
struct device *dev = pci->dev;
struct device_node *np = dev->of_node;
struct platform_device *pdev = to_platform_device(dev);
struct resource_entry *win, *tmp;
struct resource_entry *win;
struct pci_bus *child;
struct pci_host_bridge *bridge;
struct resource *cfg_res;
@ -342,31 +342,19 @@ int dw_pcie_host_init(struct pcie_port *pp)
if (!bridge)
return -ENOMEM;
ret = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
&bridge->windows, &pp->io_base);
if (ret)
return ret;
ret = devm_request_pci_bus_resources(dev, &bridge->windows);
ret = pci_parse_request_of_pci_ranges(dev, &bridge->windows, NULL);
if (ret)
return ret;
/* Get the I/O and memory ranges from DT */
resource_list_for_each_entry_safe(win, tmp, &bridge->windows) {
resource_list_for_each_entry(win, &bridge->windows) {
switch (resource_type(win->res)) {
case IORESOURCE_IO:
ret = devm_pci_remap_iospace(dev, win->res,
pp->io_base);
if (ret) {
dev_warn(dev, "Error %d: failed to map resource %pR\n",
ret, win->res);
resource_list_destroy_entry(win);
} else {
pp->io = win->res;
pp->io->name = "I/O";
pp->io_size = resource_size(pp->io);
pp->io_bus_addr = pp->io->start - win->offset;
}
pp->io = win->res;
pp->io->name = "I/O";
pp->io_size = resource_size(pp->io);
pp->io_bus_addr = pp->io->start - win->offset;
pp->io_base = pci_pio_to_address(pp->io->start);
break;
case IORESOURCE_MEM:
pp->mem = win->res;