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powerpc/pci: Clean up direct access to sysdata by CHRP platforms

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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>
This commit is contained in:
Kumar Gala 2009-04-30 03:10:11 +00:00 committed by Benjamin Herrenschmidt
parent f159edaef3
commit 8456993ead
1 changed files with 4 additions and 4 deletions
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8
arch/powerpc/platforms/chrp/pci.c
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@ -34,7 +34,7 @@ int gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
int len, u32 *val) int len, u32 *val)
{ {
volatile void __iomem *cfg_data; volatile void __iomem *cfg_data;
struct pci_controller *hose = bus->sysdata; struct pci_controller *hose = pci_bus_to_host(bus);
if (bus->number > 7) if (bus->number > 7)
return PCIBIOS_DEVICE_NOT_FOUND; return PCIBIOS_DEVICE_NOT_FOUND;
@ -61,7 +61,7 @@ int gg2_write_config(struct pci_bus *bus, unsigned int devfn, int off,
int len, u32 val) int len, u32 val)
{ {
volatile void __iomem *cfg_data; volatile void __iomem *cfg_data;
struct pci_controller *hose = bus->sysdata; struct pci_controller *hose = pci_bus_to_host(bus);
if (bus->number > 7) if (bus->number > 7)
return PCIBIOS_DEVICE_NOT_FOUND; return PCIBIOS_DEVICE_NOT_FOUND;
@ -96,7 +96,7 @@ static struct pci_ops gg2_pci_ops =
int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset, int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
int len, u32 *val) int len, u32 *val)
{ {
struct pci_controller *hose = bus->sysdata; struct pci_controller *hose = pci_bus_to_host(bus);
unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8) unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
| (((bus->number - hose->first_busno) & 0xff) << 16) | (((bus->number - hose->first_busno) & 0xff) << 16)
| (hose->global_number << 24); | (hose->global_number << 24);
@ -111,7 +111,7 @@ int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
int rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset, int rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
int len, u32 val) int len, u32 val)
{ {
struct pci_controller *hose = bus->sysdata; struct pci_controller *hose = pci_bus_to_host(bus);
unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8) unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
| (((bus->number - hose->first_busno) & 0xff) << 16) | (((bus->number - hose->first_busno) & 0xff) << 16)
| (hose->global_number << 24); | (hose->global_number << 24);