[PATCH V8 8/9] arm64, pci, acpi: Provide ACPI-specific prerequisites for PCI bus enumeration.
From: Tomasz Nowicki <hidden>
Date: 2016-05-30 15:15:23
Also in:
linux-acpi, linux-pci, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
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 <redacted>
---
arch/arm64/kernel/pci.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index 336deef..3663be1 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> /*
@@ -96,4 +97,15 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) /* TODO: Should be revisited when implementing PCI on ACPI */ return NULL; } + +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); +} + #endif
--
1.9.1