Re: Audio support on OMAP 3430LDP or 4430SDP boards

[Russell King - ARM Linux <linux@arm.linux.org.uk>]

On Fri, Apr 27, 2012 at 08:04:52PM +0300, Ujfalusi, Peter wrote:
> On Fri, Apr 27, 2012 at 7:50 PM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
> >> You need to load the DMIC driver as well:
> >> insmod snd-soc-omap-dmic.ko
> >
> > You must be joking...
>
> Well SDP4430/Blaze have the following setup:
> twl6040 via McPDM
> digital microphones via DMIC
>
> So I would:
> root@omap-4430sdp:~# insmod snd-soc-twl6040.ko
> root@omap-4430sdp:~# insmod snd-soc-omap.ko
> root@omap-4430sdp:~# insmod snd-soc-omap-mcpdm.ko
> root@omap-4430sdp:~# insmod snd-soc-omap-dmic.ko
> root@omap-4430sdp:~# insmod snd-soc-dmic.ko
> root@omap-4430sdp:~# insmod snd-soc-omap-abe-twl6040.ko
>
> Does this works for you?

root@omap-4430sdp:~# lsmod
Module                  Size  Used by
snd_soc_dmic            1492  0
snd_soc_omap4_hdmi      1724  0
snd_soc_omap_hdmi       1536  0
snd_soc_omap_abe_twl6040     4867  0
snd_soc_omap_dmic       4248  0
snd_soc_omap_mcpdm      3077  1 snd_soc_omap_abe_twl6040
snd_soc_omap            2987  0
snd_soc_twl6040        18601  1 snd_soc_omap_abe_twl6040
root@omap-4430sdp:~# cat /proc/asound/cards
--- no soundcards ---
root@omap-4430sdp:~# grep . /sys/kernel/debug/asoc/*
/sys/kernel/debug/asoc/codecs:dmic-codec
/sys/kernel/debug/asoc/codecs:snd-soc-dummy
/sys/kernel/debug/asoc/codecs:omapdss_hdmi
/sys/kernel/debug/asoc/dais:dmic-hifi
/sys/kernel/debug/asoc/dais:omap-dmic
/sys/kernel/debug/asoc/dais:omap-mcpdm
/sys/kernel/debug/asoc/dais:snd-soc-dummy-dai
/sys/kernel/debug/asoc/dais:hdmi-audio-codec
/sys/kernel/debug/asoc/platforms:omap-pcm-audio
/sys/kernel/debug/asoc/platforms:snd-soc-dummy

So the answer is... no.

> Or
> make modules_install
> depmod -a
> modprobe snd-soc-omap-abe-twl6040

That's not going to help one bit, as the only two modules that
snd-soc-omap-abe-twl6040 depends on are snd-soc-omap-mcpdm and
snd-soc-twl6040.