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authorRene Herman <rene.herman@gmail.com>2008-07-25 19:44:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-26 12:00:02 -0700
commit999ed65ad12e374d7445fbc13f5a1d146ae4b0da (patch)
tree68b2232e19c9db8aeafbd7125cdec9c37c6598e3 /drivers/pnp
parent00412be1d7bdf451653c7dafeb09f4f83398d756 (diff)
pnp: have quirk_system_pci_resources() include io resources
quirk_system_pci_resources() disables a PnP mem resource that overlaps a PCI BAR so as to not keep the PCI driver from claiming the resource. Have it do the same for io resources. Here, ACPI claims ports that overlap with my soundcard causing the soundcard driver to fail to load. It's unknown why my ACPI BIOS claims those ports; it did not use to but this is not a (kernel) regression. Some odd BIOS reconfig triggered by temporarily removing the card seems to have brought this on. Signed-off-by: Rene Herman <rene.herman@gmail.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pnp')
-rw-r--r--drivers/pnp/quirks.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index 55f55ed72dc..0bdf9b8a5e5 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -245,15 +245,17 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
*/
for_each_pci_dev(pdev) {
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) ||
- pci_resource_len(pdev, i) == 0)
+ unsigned int type;
+
+ type = pci_resource_flags(pdev, i) &
+ (IORESOURCE_IO | IORESOURCE_MEM);
+ if (!type || pci_resource_len(pdev, i) == 0)
continue;
pci_start = pci_resource_start(pdev, i);
pci_end = pci_resource_end(pdev, i);
for (j = 0;
- (res = pnp_get_resource(dev, IORESOURCE_MEM, j));
- j++) {
+ (res = pnp_get_resource(dev, type, j)); j++) {
if (res->start == 0 && res->end == 0)
continue;
@@ -283,9 +285,10 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
* the PCI region, and that might prevent a PCI
* driver from requesting its resources.
*/
- dev_warn(&dev->dev, "mem resource "
+ dev_warn(&dev->dev, "%s resource "
"(0x%llx-0x%llx) overlaps %s BAR %d "
"(0x%llx-0x%llx), disabling\n",
+ pnp_resource_type_name(res),
(unsigned long long) pnp_start,
(unsigned long long) pnp_end,
pci_name(pdev), i,