Re: Delaying i8042 probe?

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On Sat, 11 Sep 2021 20:50:25 +0200,
Fabio Estevam wrote:
> 
> On Sat, Sep 11, 2021 at 3:43 PM Fabio Estevam <festevam@xxxxxxxxx> wrote:
> >
> > On Sat, Sep 11, 2021 at 4:32 AM Takashi Iwai <tiwai@xxxxxxx> wrote:
> >
> > > OK, I'll update and let the reporter testing it.
> >
> > Sorry, platform_device_alloc() and platform_device_add() were missing
> > in the earlier patch.
> >
> > New patch atached.
> >
> > Dmitry, does this look correct?
> 
> Please consider this one instead.

The patch was confirmed to work.
  https://bugzilla.suse.com/show_bug.cgi?id=1190256#c19

| That one worked despite the CTR error:
| 
| [    0.000000] Linux version 5.14.2-3.g9458b22-default (geeko@buildhost) (gcc (SUSE Linux) 11.2.1 20210816 [revision 056e324ce46a7924b5cf10f61010cf9dd2ca10e9], GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.36.1.20210326-4) #1 SMP Sun Sep 12 20:15:58 UTC 2021 (9458b22)
| [    0.484315] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
| [    0.484318] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
| [    1.005361] i8042: Can't read CTR while initializing i8042
| [    1.477053] serio: i8042 KBD port at 0x60,0x64 irq 1
| [    1.503700] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2
| 
| Seems it takes more than a secod to initialize, ugh

I'm not sure what's done during this 0.5 second period after CTR read
failure.  At least only shuffling the driver init order for built-in
drivers didn't suffice.

A full log was requested, but I don't think it'll give much more
information.


Takashi



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