ACPI: Add Thinkpad T400, T500 to OSI(Linux) white-list

acpi_osi=Linux helps the mute button work properly by sending Linux
a mute key press.

http://bugzilla.kernel.org/show_bug.cgi?id=13934

Signed-off-by: Jerone Young <jerone.young@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index e56b2a7b53db2dcc4735287edaeb10a7c54a3d56..23e5a0519af552d27ddcb9f8c14aa38062b434ea 100644 (file)
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -224,6 +224,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
         * _OSI(Linux) helps sound
         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
+        * T400, T500
         * _OSI(Linux) has Linux specific hooks
         * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
         * _OSI(Linux) is a NOP:
@@ -254,6 +255,22 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
                     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
                },
        },
+       {
+       .callback = dmi_enable_osi_linux,
+       .ident = "Lenovo ThinkPad T400",
+       .matches = {
+                    DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                    DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
+               },
+       },
+       {
+       .callback = dmi_enable_osi_linux,
+       .ident = "Lenovo ThinkPad T500",
+       .matches = {
+                    DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                    DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
+               },
+       },
        {}
 };