[alsa-devel] [PATCH] audio: sgtl5000: Add MicBias resistor support in DT

Jean-Michel Hautbois jean-michel.hautbois at vodalys.com
Sun Oct 12 23:42:47 CEST 2014


Hi Fabio,

2014-10-12 23:15 GMT+02:00 Fabio Estevam <festevam at gmail.com>:
> On Sun, Oct 12, 2014 at 3:39 PM, Jean-Michel Hautbois
> <jean-michel.hautbois at vodalys.com> wrote:
>
>> +       if (np) {
>> +               if (!of_property_read_u32(np,
>> +                       "sgtl5000-micbias-resistor", &value)) {
>> +                       switch (value) {
>> +                       case 1:
>> +                               sgtl5000->micbias_resistor =
>> +                                       SGTL5000_MICBIAS_2K;
>> +                               break;
>> +                       case 2:
>> +                               sgtl5000->micbias_resistor =
>> +                                       SGTL5000_MICBIAS_4K;
>> +                               break;
>> +                       case 3:
>> +                               sgtl5000->micbias_resistor =
>> +                                       SGTL5000_MICBIAS_8K;
>> +                               break;
>> +                       default:
>> +                               sgtl5000->micbias_resistor =
>> +                                       SGTL5000_MICBIAS_OFF;
>> +                               dev_err(&client->dev,
>> +                                       "Unsuitable MicBias resistor\n");
>
> The case 0 should SGTL5000_MICBIAS_OFF and the default should be
> SGTL5000_MICBIAS_4K.

You are right of course, second version sent. I have a patch wich adds
MicBias voltage support too, but it will be on top of this one, is
this a problem ?

Thanks,
JM


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