On Tue, 4 Feb 2014 18:06:25 +0000 Mark Brown <broonie at kernel.org> wrote:
> On Mon, Jan 27, 2014 at 09:48:54AM +0100, Jean-Francois Moine wrote: > > > + /* change the snd_soc_pcm_stream values of the driver */ > > + stream->rates = rate_mask; > > + stream->channels_max = max_channels; > > + stream->formats = formats; > > > + /* copy the DAI driver to a writable area */ > > + dai_drv = devm_kzalloc(&pdev->dev, sizeof(tda998x_dai), GFP_KERNEL); > > + if (!dai_drv) > > + return -ENOMEM; > > + memcpy(dai_drv, tda998x_dai, sizeof(tda998x_dai)); > > + > > The code should be doing this by setting constraints based on the > current setup rather than by editing the data structure - the expecation > is very much that the data won't change so this prevents surprises with > future work on the core. As it is done in the soc core, in soc_pcm_open(), the runtime hw_params are initialized after the call to the CODEC startup, and the next CODEC event is hw_params() when the user has already chosen all the parameters. So, in the CODEC, I don't see how I could update the parameters dictated by the EDID otherwise in changing the DAI driver parameters. -- Ken ar c'henta? | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/
