MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY

Introduce 2 Kconfig symbols, CONFIG_PCI_DRIVERS_GENERIC &
CONFIG_PCI_DRIVERS_LEGACY, which indicate whether the system should be
built to for PCI drivers using the MIPS-specific struct pci_controller
API (hereafter "legacy" drivers) or more generic drivers using only
functionality provided by the PCI core (hereafter "generic" drivers).

The Kconfig entries are created such that platforms have to select
CONFIG_PCI_DRIVERS_GENERIC if they wish to use it - that is, the default
is CONFIG_PCI_DRIVERS_LEGACY so that existing platforms need no
modification.

The functions declared in pci.h are rearranged with those provided only
by pci-legacy.c being guarded by an #ifdef CONFIG_PCI_DRIVERS_LEGACY to
ensure they are only used in configurations where they are implemented.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14345/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton
2016-10-05 18:18:12 +01:00
committed by Ralf Baechle
父節點 f8091a8897
當前提交 c5611df968
共有 4 個文件被更改,包括 43 次插入25 次删除

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@@ -2974,7 +2974,6 @@ config PCI
bool "Support for PCI controller"
depends on HW_HAS_PCI
select PCI_DOMAINS
select NO_GENERIC_PCI_IOPORT_MAP
help
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
@@ -2998,6 +2997,13 @@ config PCI_DOMAINS
config PCI_DOMAINS_GENERIC
bool
config PCI_DRIVERS_GENERIC
bool
config PCI_DRIVERS_LEGACY
def_bool !PCI_DRIVERS_GENERIC
select NO_GENERIC_PCI_IOPORT_MAP
source "drivers/pci/Kconfig"
#