[PATCH v2 1/5] sound: sam9x5_wm8731: machine driver for at91sam9x5 wm8731 boards

Mark Brown broonie at kernel.org
Mon Jul 8 11:07:21 EDT 2013


On Mon, Jul 08, 2013 at 03:29:49PM +0200, Richard Genoud wrote:

> + *		  Nicolas Ferre <nicolas.ferre at atmel.com>
> + *
> + * Based on sam9g20_wm8731.c by:
> + * Sedji Gaouaou <sedji.gaouaou at atmel.com>

The obvious question here is of course if we can use the same driver for
both of them.

> +	codec_dai->driver->playback.rates &= SNDRV_PCM_RATE_8000 |
> +		SNDRV_PCM_RATE_32000 |
> +		SNDRV_PCM_RATE_48000 |
> +		SNDRV_PCM_RATE_96000;
> +	codec_dai->driver->capture.rates &= SNDRV_PCM_RATE_8000 |
> +		SNDRV_PCM_RATE_32000 |
> +		SNDRV_PCM_RATE_48000 |
> +		SNDRV_PCM_RATE_96000;

You definitely shouldn't be fiddling with a driver's constant static
data.  You want to be using snd_pcm_hw_constraint() APIs to set
additional constraints intead.
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