[alsa-devel] [PATCH 1/3] ASoC: max98090: read micbias from device property
Anish Kumar
Anish.Kumar at maximintegrated.com
Wed May 27 23:35:40 CEST 2015
> From: "Fang, Yang A" <yang.a.fang at intel.com>
>
> This patch reads max98090 micbias from acpi or dt
>
> Signed-off-by: Fang, Yang A <yang.a.fang at intel.com>
> ---
> sound/soc/codecs/max98090.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
> index c230626..27df17e 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 +2505,13 @@ 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, "max,micbias", &micbias);
if (err || micbias < M98090_MBVSEL_2V2 || micbias > M98090_MBVSEL_2V8)
micbias = M98090_MBVSEL_2V8;
Just stick sanity as well.
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