Re: problem: Re: [PATCH] input: fixup X86_MRST selects
From: Dmitry Torokhov
Date: Mon Jun 28 2010 - 16:18:30 EST
On Monday, June 28, 2010 12:03:44 pm Randy Dunlap wrote:
> On 06/10/10 12:04, Dmitry Torokhov wrote:
> > On Wednesday, June 09, 2010 03:42:08 pm Randy Dunlap wrote:
> >> On 06/09/10 15:40, Dmitry Torokhov wrote:
> >>> On Wednesday, June 09, 2010 03:29:21 pm Randy Dunlap wrote:
> >>>> +++ linux-next-20100609/drivers/input/keyboard/Kconfig
> >>>> @@ -70,9 +70,10 @@ config KEYBOARD_ATARI
> >>>>
> >>>> config KEYBOARD_ATKBD
> >>>>
> >>>> tristate "AT keyboard" if EMBEDDED || !X86
> >>>>
> >>>> + depends on !X86 || (X86 && !X86_MRST)
> >>>
> >>> Should it be simply 'depends on !X86_MRST' and then we could kill
> >>> '!X86_MRST' conditionals in selects?
> >>
> >> Duh, that sounds good, yes.
> >
> > Actually, I do not think this is a correct approach. While Moorestown
> > does not have i8042 theoretically it is possible to add AT-style
> > keyboard by other means (however unlikely it is) so we should not be
> > disabling it.
> >
> > We should, however, disallow i8042 from being selected. Could you please
> > tell me if the patch below works for you?
>
> Dmitry,
>
> This patch (in current mainline git) causes a problem when X86_MRST is
> enabled. CONFIG_SERIO_I8042 is no longer enabled when X86_MRST is enabled,
> and X86_MRST could be enabled when someone is trying to build a generic
> kernel.
Randy,
Looking at arch/x86/kernel/mrst.c I am not sure if generic kernel will
work well witbh X86_MRST set. However if we supposed to support Moorestown
on generic images then, instead of playing with Kconfig, we need to adjust
i8042_platform_init() to abort on Moorestown.
Thanks.
--
Dmitry
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/