[PATCH 2/4] Add imx3sound sound support.

[Mark Brown]

On Fri, Mar 09, 2012 at 03:55:14PM +0100, Philippe Rétornaz wrote:

> +static int imx3sound_hifi_hw_free(struct snd_pcm_substream *substream)
> +{
> +	return 0;
> +}

Remove all empty functions.

> +	imx3sound_snd_device = platform_device_alloc("soc-audio", -1);
> +	if (!imx3sound_snd_device)
> +		return -ENOMEM;

No soc-audio usage, use snd_soc_register_card() from a platform device.
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