On 01/30/2013 02:22 PM, Hebbar Gururaja wrote:
> @@ -1493,6 +1544,28 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
> aic3x->setup = ai3x_setup;
> }
>
> + if (!of_property_read_u32(np, "ai3x-micbias-vg", &value)) {
> + switch (value) {
> + case 1 :
> + aic3x->micbias_vg = AIC3X_MICBIAS_2_0V;
> + break;
> + case 2 :
> + aic3x->micbias_vg = AIC3X_MICBIAS_2_5V;
> + break;
> + case 3 :
> + aic3x->micbias_vg = AIC3X_MICBIAS_AVDDV;
> + break;
> + default :
> + aic3x->micbias_vg = AIC3X_MICBIAS_OFF;
> + dev_err(&i2c->dev, "Unsuitable MicBias voltage "
> + "found in DT\n");
> + }
> + } else {
> + dev_warn(&i2c->dev, "No MicBias voltage found in DT - "
> + "using default\n");
Since "ai3x-micbias-vg" property is optional I don't think it is appropriate
to print anything here. If you really want a note about this it should be
dev_info().
> + aic3x->micbias_vg = AIC3X_MICBIAS_OFF;
> + }
> +
> } else {
> aic3x->gpio_reset = -1;
> }
> diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h
> index 6db3c41..e521ac3 100644
> --- a/sound/soc/codecs/tlv320aic3x.h
> +++ b/sound/soc/codecs/tlv320aic3x.h
> @@ -238,6 +238,10 @@
> /* Default input volume */
> #define DEFAULT_GAIN 0x20
>
> +/* MICBIAS Control Register */
> +#define MICBIAS_LEVEL_SHIFT (6)
> +#define MICBIAS_LEVEL_MASK (3 << 6)
> +
> /* headset detection / button API */
>
> /* The AIC3x supports detection of stereo headsets (GND + left + right
> signal)
>
--
Péter
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