[alsa-devel] [PATCH] ASoC: WM8983: Initial driver

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Jul 15 16:47:41 CEST 2011

On Fri, Jul 15, 2011 at 01:51:30PM +0100, Dimitris Papastamos wrote:
> The WM8983 is a low power, high quality stereo CODEC
> designed for portable multimedia applications. Highly flexible
> analogue mixing functions enable new application features,
> combining hi-fi quality audio with voice communication.

I've applied this but there's one issue you should fix up later:

> +	/* mute all outputs and set PGAs to minimum gain */
> +	for (i = WM8983_LOUT1_HP_VOLUME_CTRL;
> +	     i <= WM8983_OUT4_MONO_MIX_CTRL; ++i)
> +		snd_soc_update_bits(codec, i, 0x40, 0x40);

I know you're doing this to minimise artifacts on initial bias raise but
we should really be doing this without affecting the default register

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