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Subject[PATCH v2 0/5] patches to settle i8042 with Intel MID platforms
From: Feng Tang <>

Hi All,

Some x86 platforms like intel MID platforms don't have i8042 controllers,
and i8042 driver's probe to some non-exist legacy IO ports may hang
the MID processor.

Current solution for this is add dependency of SERIO_I8042 over
!X86_MRST, then if we build a x86 kernel image with X86_MRST=y,
it won't have i8042 driver support over common x86 platforms.

So we add a i8042 pre-detect hook into x86_platforms ops, so that
i8042 driver can use it to run-time judge whether to go on with
probe process.

Please review these patches.


* only call x86_platforms.i8042_detect() for x86 platforms

Feng Tang (5):
x86: add i8042 pre-detection hook to x86_platform_ops
x86, mrst: add i8042_detect API for Moorestwon platform
Revert "Input: do not force selecting i8042 on Moorestown"
Revert "Input: fixup X86_MRST selects"
input: i8042 - add runtime check in x86's i8042_platform_init

arch/x86/include/asm/x86_init.h | 2 ++
arch/x86/kernel/mrst.c | 7 +++++++
arch/x86/kernel/x86_init.c | 4 +++-
drivers/input/keyboard/Kconfig | 4 ++--
drivers/input/mouse/Kconfig | 2 +-
drivers/input/serio/Kconfig | 2 +-
drivers/input/serio/i8042-x86ia64io.h | 6 ++++++
7 files changed, 22 insertions(+), 5 deletions(-)

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