[alsa-devel] [PATCH 1/5 v3] ASoC: add generic simple-card support

[Takashi Iwai]

At Wed, 18 Apr 2012 19:54:01 -0700 (PDT),
Kuninori Morimoto wrote:
> 
> 
> Hi Takashi, Mark
> 
> > > > It's the call in sound/last.c.  Only devices that have been preoprly
> > > > regstered at this point of __init calls are shown.  So, it's often
> > > > misleading.
> > >
> > > I keep wondering if we should just remove it due to confusion like this.
> >
> > I don't mind to get rid of it at all.
> > But maybe it'd be good to have an alternative debug (or info) print,
> > e.g. showing at each card registration.
> 
> If I used late_initcall_sync() for it,
> the boot log became below.
> 
> ------ before --------------------------
> -> platform asoc-simple-card.0: Driver asoc-simple-card requests probe deferral
> -> ALSA device list:
> ->   No soundcards found.
>    TCP: cubic registered
>    NET: Registered protocol family 17
>    Registering the dns_resolver key type
>    VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 2
>    /opt/usr/src/WORK/morimoto/gitlinux/linux-2.6/drivers/rtc/hctosys.c: unable to )
> -> asoc: ak4642-hifi <-> fsia-dai mapping ok
>    smsc911x smsc911x.0: eth0: SMSC911x/921x identified at 0xdf022000, IRQ: 275
>    Sending DHCP requests .
>    IP-Config: Got DHCP answer from 192.168.10.77, my address is 192.168.10.119
>    IP-Config: Complete:
>         device=eth0, addr=192.168.10.119, mask=255.255.255.0, gw=192.168.10.77
>         host=192.168.10.119, domain=example.org, nis-domain=(none)
>         bootserver=192.168.10.77, rootserver=192.168.10.77, rootpath=/opt/tftpbootm
>    VFS: Mounted root (nfs filesystem) on device 0:10.
>    Freeing init memory: 128K
> ------ after --------------------------
> -> platform asoc-simple-card.0: Driver asoc-simple-card requests probe deferral
>    TCP: cubic registered
>    NET: Registered protocol family 17
>    Registering the dns_resolver key type
>    VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 2
>    /opt/usr/src/WORK/morimoto/gitlinux/linux-2.6/drivers/rtc/hctosys.c: unable to )
> -> asoc: ak4642-hifi <-> fsia-dai mapping ok
>    smsc911x smsc911x.0: eth0: SMSC911x/921x identified at 0xdf022000, IRQ: 275
>    Sending DHCP requests .
>    IP-Config: Got DHCP answer from 192.168.10.77, my address is 192.168.10.119
>    IP-Config: Complete:
>         device=eth0, addr=192.168.10.119, mask=255.255.255.0, gw=192.168.10.77
>         host=192.168.10.119, domain=example.org, nis-domain=(none)
>         bootserver=192.168.10.77, rootserver=192.168.10.77, rootpath=/opt/tftpbootm
> -> ALSA device list:
> ->   #0: FSI2A-AK4648
>    VFS: Mounted root (nfs filesystem) on device 0:10.
>    Freeing init memory: 128K
> --------------------------------------------

This looks like a good workaround.  Care to send a patch?


thanks,

Takashi