ACPI requires to run acpi_pci_{add|remove}_bus while new PCI bus is created. This allows to do some ACPI-specific additional configuration, like PCI hotplug slot enumeration. In order to fulfill these requirements, we implement arch-specific pcibios_{add|remove}_bus calls and call acpi_pci_{add|remove}_bus from there.
Signed-off-by: Tomasz Nowicki tn@semihalf.com To: Catalin Marinas catalin.marinas@arm.com To: Lorenzo Pieralisi Lorenzo.Pieralisi@arm.com To: Will Deacon will.deacon@arm.com To: Arnd Bergmann arnd@arndb.de --- arch/arm64/kernel/pci.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index 15109c11..eeec5f6 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -17,6 +17,7 @@ #include <linux/mm.h> #include <linux/of_pci.h> #include <linux/of_platform.h> +#include <linux/pci-acpi.h> #include <linux/slab.h>
/* @@ -64,6 +65,16 @@ int pcibios_alloc_irq(struct pci_dev *dev) return 0; }
+void pcibios_add_bus(struct pci_bus *bus) +{ + acpi_pci_add_bus(bus); +} + +void pcibios_remove_bus(struct pci_bus *bus) +{ + acpi_pci_remove_bus(bus); +} + /* * raw_pci_read/write - Platform-specific PCI config space access. */