RE: problem: Re: [PATCH] input: fixup X86_MRST selects

From: Pan, Jacob jun
Date: Mon Jun 28 2010 - 19:22:14 EST

There is no DMI support yet in MRST FW.
We have a new x86 HW subarch ID in boot_param, then we use it to select x86_init abstractions. Both boot_param and x86_init are x86 arch specific so I guess we can use them in 8042 driver under CONFIG_X86. Not sure if it is possible to move x86 i8042_platform_init under x86_init (the x86 part).

>-----Original Message-----
>From: Dmitry Torokhov [mailto:dmitry.torokhov@xxxxxxxxx]
>Sent: Monday, June 28, 2010 3:45 PM
>To: Pan, Jacob jun
>Cc: Randy Dunlap; Stephen Rothwell; linux-next@xxxxxxxxxxxxxxx; LKML;
>linux-input@xxxxxxxxxxxxxxx; akpm; chuck.lever@xxxxxxxxxx; H. Peter
>Subject: Re: problem: Re: [PATCH] input: fixup X86_MRST selects
>On Mon, Jun 28, 2010 at 02:12:03PM -0700, Pan, Jacob jun wrote:
>> >
>> We do intend to maintain binary compatibility between generic kernel
>and Moorestown.
>> I guess the challenge is not having enumeration of i8042 pass to the
>driver. Do you
>> prefer abort i8042_platform_init() based on #define CONFIG_X86_MRST?
>It is no safe
>> to probe HW on Moorestown, unfortunately.
>Any check based on CONFIG_X86_MRST means that kernel is not generic.
>We'd need a runtime check (but not necessarily one that bangs ports). Is
>there something in processor flags, or DMI, or similar that woudl allow
>i8042 to see that it runs on Moorestown?
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