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| author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2014-11-21 14:29:26 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-12-28 04:19:18 +0300 |
| commit | 8c7d14746abce601b768533c3ccb3f3e64f98551 (patch) | |
| tree | 2eeafa69ca4d3cf053890d62dbc81c19dcc2d1fe /arch/arm/Kconfig | |
| parent | c88d54ba0c3d89b925bfb8e98b13a3f55b55cde4 (diff) | |
| download | linux-8c7d14746abce601b768533c3ccb3f3e64f98551.tar.xz | |
ARM/PCI: Move to generic PCI domains
Most if not all ARM PCI host controller device drivers either ignore the
domain field in the pci_sys_data structure or just increment it every time
a host controller is probed, using it as a domain counter.
Therefore, instead of relying on pci_sys_data to stash the domain number in
a standard location, ARM pcibios code can be moved to the newly introduced
generic PCI domains code, implemented in commits:
41e5c0f81d3e ("of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()")
670ba0c8883b ("PCI: Add generic domain handling")
ARM code is made to select PCI_DOMAINS_GENERIC by default, which builds
core PCI code that assigns the domain number through the generic function:
void pci_bus_assign_domain_nr(...)
that relies on a DT property to define the domain number or falls back to a
counter according to a predefined logic; its usage replaces the current
domain assignment code in PCI host controllers present in the kernel.
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Yijing Wang <wangyijing@huawei.com>
Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> # mvebu
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
CC: Mohit Kumar <mohit.kumar@st.com>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 97d07ed60a0b..dcb2e0c55be4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1279,6 +1279,9 @@ config PCI_DOMAINS bool depends on PCI +config PCI_DOMAINS_GENERIC + def_bool PCI_DOMAINS + config PCI_NANOENGINE bool "BSE nanoEngine PCI support" depends on SA1100_NANOENGINE |