The patch titled
pnp: have quirk_system_pci_resources() include io resources
has been added to the -mm tree. Its filename is
pnp-have-quirk_system_pci_resources-include-io-resources.patch
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Subject: pnp: have quirk_system_pci_resources() include io resources
From: Rene Herman <rene.herman@xxxxxxxxx>
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@xxxxxxxxx>
Acked-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/pnp/quirks.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff -puN drivers/pnp/quirks.c~pnp-have-quirk_system_pci_resources-include-io-resources drivers/pnp/quirks.c
--- a/drivers/pnp/quirks.c~pnp-have-quirk_system_pci_resources-include-io-resources
+++ a/drivers/pnp/quirks.c
@@ -245,15 +245,17 @@ static void quirk_system_pci_resources(s
*/
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(s
* 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,
_
Patches currently in -mm which might be from rene.herman@xxxxxxxxx are
pnp-set-the-pnp_card-dma_mask-for-use-by-isapnp-cards.patch
isa-set-24-bit-dma_mask-for-isa-devices.patch
pnp-have-quirk_system_pci_resources-include-io-resources.patch
make-pnp_add_card_id-static.patch
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