5 files changed, 18 insertions, 0 deletions

diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
index 2db65ec45dc3..42913f43feb0 100644
--- a/arch/i386/pci/acpi.c
+++ b/arch/i386/pci/acpi.c
@@ -30,6 +30,7 @@ static int __init pci_acpi_init(void)
         acpi_irq_penalty_init();
         pcibios_scanned++;
         pcibios_enable_irq = acpi_pci_irq_enable;
+        pcibios_disable_irq = acpi_pci_irq_disable;
 
         if (pci_routeirq) {
                 /*
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index 70bcd53451f6..ade5bc57c34c 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -254,3 +254,9 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
         return pcibios_enable_irq(dev);
 }
+
+void pcibios_disable_device (struct pci_dev *dev)
+{
+        if (pcibios_disable_irq)
+                pcibios_disable_irq(dev);
+}
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index 766b104ac1a1..86348b68fda1 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -56,6 +56,7 @@ struct irq_router_handler {
 };
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = NULL;
+void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
 
 /*
  *  Check passed address for the PCI IRQ Routing Table signature
@@ -550,6 +551,13 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
 static __init int via_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
 {
         /* FIXME: We should move some of the quirk fixup stuff here */
+
+        if (router->device == PCI_DEVICE_ID_VIA_82C686 &&
+                        device == PCI_DEVICE_ID_VIA_82C586_0) {
+                /* Asus k7m bios wrongly reports 82C686A as 586-compatible */
+                device = PCI_DEVICE_ID_VIA_82C686;
+        }
+
         switch(device)
         {
                 case PCI_DEVICE_ID_VIA_82C586_0:
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index a80f0f55ff51..127d53ad16be 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -73,3 +73,4 @@ extern int pcibios_scanned;
 extern spinlock_t pci_config_lock;
 
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
+extern void (*pcibios_disable_irq)(struct pci_dev *dev);
diff --git a/arch/i386/pci/visws.c b/arch/i386/pci/visws.c
index 314c933b6b8e..6c17433fdf7d 100644
--- a/arch/i386/pci/visws.c
+++ b/arch/i386/pci/visws.c
@@ -18,8 +18,10 @@
 extern struct pci_raw_ops pci_direct_conf1;
 
 static int pci_visws_enable_irq(struct pci_dev *dev) { return 0; }
+static void pci_visws_disable_irq(struct pci_dev *dev) { }
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = &pci_visws_enable_irq;
+void (*pcibios_disable_irq)(struct pci_dev *dev) = &pci_visws_disable_irq;
 
 void __init pcibios_penalize_isa_irq(int irq, int active) {}