[PATCH v1 3/9] powerpc/PCI: convert devtree bus addresses to resource

[Bjorn Helgaas]

Normal PCI enumeration via PCI config space uses __pci_read_base(), where
the PCI core applies any bus-to-resource offset.  But powerpc doesn't use
that path when enumerating via the device tree.

This adds the corresponding bus-to-resource conversion in the paths that
read BAR values from the OF device tree.

CC: Benjamin Herrenschmidt <b...@kernel.crashing.org>
CC: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Bjorn Helgaas <bhelg...@google.com>
---
 arch/powerpc/kernel/pci_of_scan.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/pci_of_scan.c 
b/arch/powerpc/kernel/pci_of_scan.c
index b37d0b5..89dde17 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -75,6 +75,7 @@ static void of_pci_parse_addrs(struct device_node *node, 
struct pci_dev *dev)
 {
        u64 base, size;
        unsigned int flags;
+       struct pci_bus_region region;
        struct resource *res;
        const u32 *addrs;
        u32 i;
@@ -106,10 +107,11 @@ static void of_pci_parse_addrs(struct device_node *node, 
struct pci_dev *dev)
                        printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i);
                        continue;
                }
-               res->start = base;
-               res->end = base + size - 1;
                res->flags = flags;
                res->name = pci_name(dev);
+               region.start = base;
+               region.end = base + size - 1;
+               pcibios_bus_to_resource(dev, res, &region);
        }
 }
 
@@ -209,6 +211,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev)
        struct pci_bus *bus;
        const u32 *busrange, *ranges;
        int len, i, mode;
+       struct pci_bus_region region;
        struct resource *res;
        unsigned int flags;
        u64 size;
@@ -270,9 +273,10 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev)
                        res = bus->resource[i];
                        ++i;
                }
-               res->start = of_read_number(&ranges[1], 2);
-               res->end = res->start + size - 1;
                res->flags = flags;
+               region.start = of_read_number(&ranges[1], 2);
+               region.end = region.start + size - 1;
+               pcibios_bus_to_resource(dev, res, &region);
        }
        sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
                bus->number);

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