Re: [ACPI] ACPI/ECDT on gateway 200x notebook

[Ducrot B. <du...@po...>]

On Wed, Jan 07, 2004 at 07:57:54PM +0800, Yu, Luming wrote:
> >The EC is a child of other devices and you
> >have to be sure that those devices are initialized before EC (even
> >though that is done by BIOS at POST already, due to legacy access
> >in some laptops).
> 
> One point is that my patch don't want to fully initialize EC devices.
> It just want to get EC resource to init EC addresspace handler ,
> Although the patch looks ugly.
> 
> The motivation is just to have EC address space 
> handler ready for devices that get initialized before EC devices on
> laptop without ECDT.   If this attempt is failed due to what you
> said,  then ECDT is necessary.
> 
> At least, it seems to work for gateway laptop. Of cause, it need to be
> refined.

Oh, I'm not against this approach, but I wanted to point you some
possible issues.  I see 3 ways for now to go:

1- your approach,
2- make a kind of setup option, like the patch I send some time ago, in
   order to fake an ECDT, but simplified (the IO ports should be
   the only options).  But that require another boot option.
3- an error runtime handler, which initialize the address space handler for
   the EC if not already done, and then retry.

I don't know what is best.

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.