On 08.03.2012, at 19:49, Ricardo Neri <[email protected]> wrote:

> Hi Alex,
> 
> On Thu, 2012-03-08 at 15:08 +0100, Alexander Graf wrote:
>> Hi list,
>> 
>> Trying to compile 3.3-rc6 with the following option combination fails:
>> 
>> CONFIG_SND_OMAP_SOC_OMAP4_HDMI=m
>> CONFIG_SND_OMAP_SOC_HDMI=m
>> CONFIG_OMAP2_DSS=y
>> 
>> drivers/built-in.o: In function `omapdss_hdmihw_remove':
>> /home/abuild/rpmbuild/BUILD/kernel-omap2plus-3.3.rc6/linux-3.3-rc6/drivers/video/omap2/dss/hdmi.c:879:
>>  undefined reference to `snd_soc_unregister_codec'
>> drivers/built-in.o: In function `omapdss_hdmihw_probe':
>> /home/abuild/rpmbuild/BUILD/kernel-omap2plus-3.3.rc6/linux-3.3-rc6/drivers/video/omap2/dss/hdmi.c:863:
>>  undefined reference to `snd_soc_register_codec'
>> 
>> However, we do want to have DSS compiled into the kernel to ensure that 
>> graphics are available, but since audio is not quite as crucial for 
>> debugging, that one should live as a module.
>> 
>> According to Takashi, it shouldn't be all that hard to split the HDMI audio 
>> code from dss/hdmi.c, but I'm currently lacking the time to do so. If 
>> anyone's interested in picking it up, I'd very much appreciate it!
> 
> I have started working on moving the HDMI audio part to /sound
> (http://www.spinics.net/lists/linux-omap/msg64477.html) and the
> relocation discussion has lead to proposing an interface to provide
> funtionality in DSS for displays that support audio (DisplayPort and
> HDMI, atm, http://www.spinics.net/lists/linux-omap/msg64744.html).
> 
> I am about to send a set of patches to DSS for this and then have the
> audio driver use the proposed DSS functionality.

Ah, very cool! Thanks a lot for working on that :).

Please let me know when that hits mainline, so I can enable HDMI audio output 
in openSUSE again :)


Alex

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