Re: Problems loading firmware using built-in drivers with kernels that use initramfs.

[Liam Girdwood]

On Wed, 2015-08-26 at 08:29 +0000, Jie, Yang wrote:
> > -----Original Message-----
> > From: Liam Girdwood [mailto:liam.r.girdwood@xxxxxxxxxxxxxxx]

> > I think the options are to either :-
> > 
> > 1) Don not support audio DSP drivers using topology data as built-in drivers.
> > Audio is not really a critical system required for booting anyway.
> > 
> > 2) Create a default PCM for every driver that has topology data on the
> > assumption that every sound card will at least 1 PCM. This PCM can then be
> > re-configured when the FW is loaded.
> 
> Yep, this case is quite similar with what Linus described.
>  
> Is it possible that we can probe pcm device after firmware is loaded for this
> case?
> 

The PCM devices are defined in the topology data so it is only possible
to create the PCM device *after* the firmware is loaded in these
drivers. 

Liam

--
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/