Pull button into test branch

[linux-drm-fsl-dcu.git] / arch / i386 / kernel / acpi / earlyquirk.c

diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index c9841692bb7cc1170861044ecd973916373b18d3..4b60af7f91dd0c915c42f24d09976254b7c42353 100644 (file)
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -10,6 +10,7 @@
 #include <asm/pci-direct.h>
 #include <asm/acpi.h>
 #include <asm/apic.h>
+#include <asm/irq.h>
 
 #ifdef CONFIG_ACPI
 
@@ -49,6 +50,24 @@ static int __init check_bridge(int vendor, int device)
        return 0;
 }
 
+static void check_intel(void)
+{
+       u16 vendor, device;
+
+       vendor = read_pci_config_16(0, 0, 0, PCI_VENDOR_ID);
+
+       if (vendor != PCI_VENDOR_ID_INTEL)
+               return;
+
+       device = read_pci_config_16(0, 0, 0, PCI_DEVICE_ID);
+#ifdef CONFIG_SMP
+       if (device == PCI_DEVICE_ID_INTEL_E7320_MCH ||
+           device == PCI_DEVICE_ID_INTEL_E7520_MCH ||
+           device == PCI_DEVICE_ID_INTEL_E7525_MCH)
+               quirk_intel_irqbalance();
+#endif
+}
+
 void __init check_acpi_pci(void)
 {
        int num, slot, func;
@@ -60,6 +79,8 @@ void __init check_acpi_pci(void)
        if (!early_pci_allowed())
                return;
 
+       check_intel();
+
        /* Poor man's PCI discovery */
        for (num = 0; num < 32; num++) {
                for (slot = 0; slot < 32; slot++) {