Re: [RFC PATCH 4/5] ASoC: SOF: Intel: hda: add SoundWire stream config/free callbacks

[Guennadi Liakhovetski]

On Thu, Aug 22, 2019 at 08:53:06AM -0500, Pierre-Louis Bossart wrote:
> Thanks for the review Guennadi
> 
> > > +static int sdw_config_stream(void *arg, void *s, void *dai,
> > > +			     void *params, int link_id, int alh_stream_id)
> > 
> > I realise, that these function prototypes aren't being introduced by these
> > patches, but just wondering whether such overly generic prototype is really
> > a good idea here, whether some of those "void *" pointers could be given
> > real types. The first one could be "struct device *" etc.
> 
> In this case the 'arg' parameter is actually a private 'struct snd_sof_dev',
> as shown below [1]. We probably want to keep this relatively opaque, this is
> a context that doesn't need to be exposed to the SoundWire code.

Right, that's why I proposed struct device and not struct snd_sof_dev, to not 
make it SOF-specific, then sdev could be obtained from dev_get_drvdata(). But 
yes, that's unrelated to this series.

Thanks
Guennadi