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authorTony Lindgren <tony@atomide.com>2011-03-02 17:07:14 -0800
committerTony Lindgren <tony@atomide.com>2011-03-02 17:07:14 -0800
commit12d7d4e0ed8fecf7f74c89483b55b300be6e5901 (patch)
treef573761ac752ff04ec445e23aef50adadda49790 /arch/x86/kernel/acpi/boot.c
parentaca6ad073ea820776bf5bdb87cf82eace35042c8 (diff)
parent790ab7e92bec24aee3939b300d36b99ab2e3f3ca (diff)
Merge branch 'devel-cleanup' into omap-for-linus
Conflicts: arch/arm/mach-omap2/timer-gp.c
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
-rw-r--r--arch/x86/kernel/acpi/boot.c14
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,