Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  input: i8042 - add runtime check in x86's i8042_platform_init
  Revert "Input: fixup X86_MRST selects"
  Revert "Input: do not force selecting i8042 on Moorestown"
  x86, mrst: Add i8042_detect API for Moorestwon platform
  x86: Add i8042 pre-detection hook to x86_platform_ops
  x86, platform: Export x86_platform to modules

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6168469ad1a6..81003c4739f4 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -7,6 +7,10 @@
  * the Free Software Foundation.
  */
 
+#ifdef CONFIG_X86
+#include <asm/x86_init.h>
+#endif
+
 /*
  * Names.
  */
@@ -840,6 +844,12 @@ static int __init i8042_platform_init(void)
 {
         int retval;
 
+#ifdef CONFIG_X86
+        /* Just return if pre-detection shows no i8042 controller exist */
+        if (!x86_platform.i8042_detect())
+                return -ENODEV;
+#endif
+
 /*
  * On ix86 platforms touching the i8042 data register region can do really
  * bad things. Because of this the region is always reserved on ix86 boxes.