On Fri, 09 Dec 2016 21:57:37 +0100,
Dmitry Torokhov wrote:
> 
> Hi,
> 
> Historically we did not trust PNP data regarding keyboard controllers on
> X86, but more and more boards get upset with us if they try to tell us that
> there is no keyboard controller and we still go and try to poke at where we
> think it might be. To work around this issue let's have a bit more faith in
> BIOS data, and if [lack] of PNP devices for mouse and keyboard matches whet
> firmware (basically ACPI FADT) tells us, let's abort i8042 probe.
> 
> We add a new flag (enum) to x86_platform.legacy structure so we can
> distinguish between cases where platform/subarch never has 8042 (such as
> MID platform) and cases where firmware says that it is not there, so that
> i8042 driver can either abort immediately or go and check for presence of
> PNP devices. We also remove x86_platform.i8042_detect() as it is no longer
> used (platforms can set value of x86_platform.legacy.i8042 as needed in
> quirks).
> 
> If you are OK with arch/x86 changes please apply together with the input
> part.

I tested and worked fine.  For all patches:
  Tested-by: Takashi Iwai <ti...@suse.de>


thanks,

Takashi

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