[PATCH v1 24/25] PCI: versatile: Request host bridge window resources with core function

Bjorn Helgaas
2016-06-06T23:07:44Z

Use devm_request_pci_bus_resources() to request host bridge window
resources instead of doing it by hand in the driver.

No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pci-versatile.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index f843a72..273edac 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -80,12 +80,15 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
if (err)
return err;

+ err = devm_request_pci_bus_resources(dev, res);
+ if (err)
+ goto out_release_res;
+
resource_list_for_each_entry(win, res) {
- struct resource *parent, *res = win->res;
+ struct resource *res = win->res;

switch (resource_type(res)) {
case IORESOURCE_IO:
- parent = &ioport_resource;
err = pci_remap_iospace(res, iobase);
if (err) {
dev_warn(dev, "error %d: failed to map resource %pR\n",
@@ -94,7 +97,6 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
}
break;
case IORESOURCE_MEM:
- parent = &iomem_resource;
res_valid |= !(res->flags & IORESOURCE_PREFETCH);

writel(res->start >> 28, PCI_IMAP(mem));
@@ -106,10 +108,6 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
default:
continue;
}
-
- err = devm_request_resource(dev, parent, res);
- if (err)
- goto out_release_res;
}

if (!res_valid) {