diff options
Diffstat (limited to 'sound/soc/codecs/max98090.c')
| -rw-r--r-- | sound/soc/codecs/max98090.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index c2306268cab8..679f0a0f7039 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -2419,6 +2419,8 @@ static int max98090_probe(struct snd_soc_codec *codec) struct max98090_cdata *cdata; enum max98090_type devtype; int ret = 0; + int err; + unsigned int micbias; dev_dbg(codec->dev, "max98090_probe\n"); @@ -2503,8 +2505,17 @@ static int max98090_probe(struct snd_soc_codec *codec) snd_soc_write(codec, M98090_REG_BIAS_CONTROL, M98090_VCM_MODE_MASK); + err = device_property_read_u32(codec->dev, "maxim,micbias", &micbias); + if (err) { + micbias = M98090_MBVSEL_2V8; + dev_info(codec->dev, "use default 2.8v micbias\n"); + } else if (micbias < M98090_MBVSEL_2V2 || micbias > M98090_MBVSEL_2V8) { + dev_err(codec->dev, "micbias out of range 0x%x\n", micbias); + micbias = M98090_MBVSEL_2V8; + } + snd_soc_update_bits(codec, M98090_REG_MIC_BIAS_VOLTAGE, - M98090_MBVSEL_MASK, M98090_MBVSEL_2V8); + M98090_MBVSEL_MASK, micbias); max98090_add_widgets(codec); |