Re: [PATCH v3 4/5] ASoC: tda998x: adjust the audio hw parametersfrom EDID

From: Mark Brown
Date: Tue Feb 04 2014 - 13:07:10 EST


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.

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