ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding

commit b939c2acf1dc42b08407ef5174f2e8d6f43dd5ea upstream.

commit f6b54f083cc66cf9b11d2120d8df3c2ad4e0836d upstream.

This is the 2nd part of fix for kernel bugzilla 40002:
    "IRQ 0 assigned to VGA"
https://bugzilla.kernel.org/show_bug.cgi?id=40002

The root cause is the buggy FW, whose ACPI tables assign the GSI 16
to 2 irqs 0 and 16(VGA), and the VGA is the right owner of GSI 16.
So add a quirk to ignore the irq0 overriding GSI 16 for the
FUJITSU SIEMENS AMILO PRO V2030 platform will solve this issue.

Reported-and-tested-by: Szymon Kowalczyk <fazerxlo@o2.pl>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 882960e..479d03c 100644 (file)
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1463,6 +1463,14 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
                     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
                     },
         },
+       {
+        .callback = dmi_ignore_irq0_timer_override,
+        .ident = "FUJITSU SIEMENS",
+        .matches = {
+                    DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+                    DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
+                    },
+        },
        {}
 };