[ACPI] Restore PIC-mode SCI default to Level Trigger (David Shaohua Li)

http://bugme.osdl.org/show_bug.cgi?id=2382

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 0b1e442c88cd2985d4387a82188f185f13c36242..7d35c674d4ed990426346effa15b03c77c24c2ce 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -615,6 +615,11 @@ acpi_bus_init (void)
 #ifdef CONFIG_X86
        if (!acpi_ioapic) {
                extern acpi_interrupt_flags acpi_sci_flags;
+
+               /* compatible (0) means level (3) */
+               if (acpi_sci_flags.trigger == 0)
+                       acpi_sci_flags.trigger = 3;
+
                /* Set PIC-mode SCI trigger type */
                acpi_pic_sci_set_trigger(acpi_fadt.sci_int, acpi_sci_flags.trigger);
        } else {