diff options
| author | Len Brown <len.brown@intel.com> | 2011-03-18 18:06:08 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-03-18 18:06:08 -0400 |
| commit | 05534c9ffc9d5d950b14de8ba49a7609dc59b0b8 (patch) | |
| tree | 65a01a1e0bc0e28c64fb5105cc763949f5412b4b /arch/x86/kernel/acpi | |
| parent | dd87cc53c42f3260b7eb7f60822de0fa9e58af59 (diff) | |
| parent | 589c7a39ae2f2b74fd13ae344ca1dcca61da6bca (diff) | |
Merge branch 'acpica' into release
Diffstat (limited to 'arch/x86/kernel/acpi')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index b3a71137983..3e6e2d68f76 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -72,6 +72,7 @@ u8 acpi_sci_flags __initdata; int acpi_sci_override_gsi __initdata; int acpi_skip_timer_override __initdata; int acpi_use_timer_override __initdata; +int acpi_fix_pin2_polarity __initdata; #ifdef CONFIG_X86_LOCAL_APIC static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; @@ -415,10 +416,15 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header, return 0; } - if (acpi_skip_timer_override && - intsrc->source_irq == 0 && intsrc->global_irq == 2) { - printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); - return 0; + if (intsrc->source_irq == 0 && intsrc->global_irq == 2) { + if (acpi_skip_timer_override) { + printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); + return 0; + } + if (acpi_fix_pin2_polarity && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { + intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; + printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); + } } mp_override_legacy_irq(intsrc->source_irq, |