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powerpc/pci: Clean up direct access to sysdata by CHRP platforms
We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -34,7 +34,7 @@ int gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
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int len, u32 *val)
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{
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volatile void __iomem *cfg_data;
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struct pci_controller *hose = bus->sysdata;
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struct pci_controller *hose = pci_bus_to_host(bus);
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if (bus->number > 7)
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return PCIBIOS_DEVICE_NOT_FOUND;
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@ -61,7 +61,7 @@ int gg2_write_config(struct pci_bus *bus, unsigned int devfn, int off,
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int len, u32 val)
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{
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volatile void __iomem *cfg_data;
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struct pci_controller *hose = bus->sysdata;
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struct pci_controller *hose = pci_bus_to_host(bus);
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if (bus->number > 7)
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return PCIBIOS_DEVICE_NOT_FOUND;
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@ -96,7 +96,7 @@ static struct pci_ops gg2_pci_ops =
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int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
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int len, u32 *val)
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{
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struct pci_controller *hose = bus->sysdata;
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struct pci_controller *hose = pci_bus_to_host(bus);
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->global_number << 24);
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@ -111,7 +111,7 @@ int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
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int rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
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int len, u32 val)
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{
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struct pci_controller *hose = bus->sysdata;
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struct pci_controller *hose = pci_bus_to_host(bus);
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->global_number << 24);
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