Bjorn Helgaas 0509ad5e1a PNP: disable PNP motherboard resources that overlap PCI BARs ... Some BIOSes have PNP motherboard devices with resources that partially overlap PCI BARs. The PNP system driver claims these motherboard resources, which prevents the normal PCI driver from requesting them later. This patch disables the PNP resources that conflict with PCI BARs so they won't be claimed by the PNP system driver. Of course, this only works if PCI devices have already been enumerated. Currently this is the case because PCI devices are discovered before any PNP init via this path: acpi_pci_root_init() -> acpi_pci_root_add() -> pci_acpi_scan_root() -> pci_scan_bus_parented() -> pci_scan_child_bus() -> ... Avuton Olrich tested this and confirmed that it fixes his ALSA sound card (see http://lkml.org/lkml/2008/1/27/168). References: https://bugzilla.redhat.com/show_bug.cgi?id=280641 https://bugzilla.redhat.com/show_bug.cgi?id=313491 http://lkml.org/lkml/2008/1/9/449 http://thread.gmane.org/gmane.linux.acpi.devel/27312 http://lkml.org/lkml/2008/1/27/168 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-03-12 12:39:36 -07:00
..
isapnp
pnpacpi	pnpacpi: __initdata is not an identifier	2008-02-14 01:19:16 -05:00
pnpbios	Dont touch fs_struct in drivers	2008-02-14 21:13:32 -08:00
base.h
card.c
core.c
driver.c	PNP: do not test PNP_DRIVER_RES_DO_NOT_CHANGE on suspend/resume	2008-02-06 10:41:20 -08:00
interface.c	isapnp driver semaphore to mutex	2008-02-06 10:41:20 -08:00
Kconfig
Makefile
manager.c	isapnp driver semaphore to mutex	2008-02-06 10:41:20 -08:00
quirks.c	PNP: disable PNP motherboard resources that overlap PCI BARs	2008-03-12 12:39:36 -07:00
resource.c
support.c
system.c