summaryrefslogtreecommitdiffstats
path: root/arch/arm/Kconfig
diff options
context:
space:
mode:
authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2014-11-21 11:29:26 +0000
committerBjorn Helgaas <bhelgaas@google.com>2014-12-27 18:19:18 -0700
commit8c7d14746abce601b768533c3ccb3f3e64f98551 (patch)
tree2eeafa69ca4d3cf053890d62dbc81c19dcc2d1fe /arch/arm/Kconfig
parentc88d54ba0c3d89b925bfb8e98b13a3f55b55cde4 (diff)
downloadop-kernel-dev-8c7d14746abce601b768533c3ccb3f3e64f98551.zip
op-kernel-dev-8c7d14746abce601b768533c3ccb3f3e64f98551.tar.gz
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/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 97d07ed..dcb2e0c 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
OpenPOWER on IntegriCloud