2 files changed, 36 insertions, 1 deletions

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index ae04d8a494e5..66829a860eec 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -449,6 +449,34 @@ static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
         },
         { }
 };
+
+static struct dmi_system_id __initdata i8042_dmi_laptop_table[] = {
+        {
+                .ident = "Portable",
+                .matches = {
+                        DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
+                },
+        },
+        {
+                .ident = "Laptop",
+                .matches = {
+                        DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
+                },
+        },
+        {
+                .ident = "Notebook",
+                .matches = {
+                        DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
+                },
+        },
+        {
+                .ident = "Sub-Notebook",
+                .matches = {
+                        DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
+                },
+        },
+        { }
+};
 #endif
 
 /*
@@ -727,6 +755,11 @@ static int __init i8042_pnp_init(void)
         i8042_kbd_irq = i8042_pnp_kbd_irq;
         i8042_aux_irq = i8042_pnp_aux_irq;
 
+#ifdef CONFIG_X86
+        i8042_bypass_aux_irq_test = !pnp_data_busted &&
+                                    dmi_check_system(i8042_dmi_laptop_table);
+#endif
+
         return 0;
 }
 
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 9f5c0506242f..b53a015bf8a5 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -83,6 +83,8 @@ module_param_named(debug, i8042_debug, bool, 0600);
 MODULE_PARM_DESC(debug, "Turn i8042 debugging mode on and off");
 #endif
 
+static bool i8042_bypass_aux_irq_test;
+
 #include "i8042.h"
 
 static DEFINE_SPINLOCK(i8042_lock);
@@ -641,7 +643,7 @@ static int __devinit i8042_check_aux(void)
  * used it for a PCI card or somethig else.
  */
 
-        if (i8042_noloop || aux_loop_broken) {
+        if (i8042_noloop || i8042_bypass_aux_irq_test || aux_loop_broken) {
 /*
  * Without LOOP command we can't test AUX IRQ delivery. Assume the port
  * is working and hope we are right.