On Fri, Oct 01, 2010 at 01:23:23PM +0900, Chanwoo Choi wrote:
> This patch add initializtion code of audio and I2S platform drivers
> to Goni and Aquila board.
Reviewed-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> +static void __init aquila_sound_init(void)
> +{
> + unsigned int gpio;
> +
> + /* CODEC_XTAL_EN
> + *
> + * The Aquila board have a oscillator which provide main clock
> + * to WM8994 codec. The oscillator provide 24MHz clock to WM8994
> + * clock. Set gpio setting of "CODEC_XTAL_EN" to enable a oscillator.
> + * */
In future we should be able to arrange for this clock to be disabled
when the CODEC is totally idle, giving a marginal power saving.
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