static int jz4740_codec_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct jz4740_codec *jz4740_codec = snd_soc_codec_get_drvdata(codec);
struct regmap *regmap = jz4740_codec->regmap;
unsigned int mask;
unsigned int value;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
mask = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
value = 0;
regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, value);
break;
case SND_SOC_BIAS_STANDBY:
/* The only way to clear the suspend flag is to reset the codec */
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
jz4740_codec_wakeup(regmap);
mask = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
value = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, value);
break;
case SND_SOC_BIAS_OFF:
mask = JZ4740_CODEC_1_SUSPEND;
value = JZ4740_CODEC_1_SUSPEND;
regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, value);
regcache_mark_dirty(regmap);
break;
default:
break;
}
codec->dapm.bias_level = level;
return 0;
}
static int jz4740_codec_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
unsigned int mask;
unsigned int value;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
mask = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
value = 0;
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
break;
case SND_SOC_BIAS_STANDBY:
/* The only way to clear the suspend flag is to reset the codec */
if (codec->bias_level == SND_SOC_BIAS_OFF)
jz4740_codec_wakeup(codec);
mask = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
value = JZ4740_CODEC_1_VREF_DISABLE |
JZ4740_CODEC_1_VREF_AMP_DISABLE |
JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
break;
case SND_SOC_BIAS_OFF:
mask = JZ4740_CODEC_1_SUSPEND;
value = JZ4740_CODEC_1_SUSPEND;
snd_soc_update_bits(codec, JZ4740_REG_CODEC_1, mask, value);
break;
default:
break;
}
codec->bias_level = level;
return 0;
}
