diff options
Diffstat (limited to 'sound/soc/codecs/wm8996.c')
| -rw-r--r-- | sound/soc/codecs/wm8996.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 1fd635494045..dc9b42b7fc4d 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -1770,7 +1770,13 @@ static int wm8996_set_bias_level(struct snd_soc_codec *codec, switch (level) { case SND_SOC_BIAS_ON: + break; case SND_SOC_BIAS_PREPARE: + /* Put the MICBIASes into regulating mode */ + snd_soc_update_bits(codec, WM8996_MICBIAS_1, + WM8996_MICB1_MODE, 0); + snd_soc_update_bits(codec, WM8996_MICBIAS_2, + WM8996_MICB2_MODE, 0); break; case SND_SOC_BIAS_STANDBY: @@ -1793,6 +1799,12 @@ static int wm8996_set_bias_level(struct snd_soc_codec *codec, regcache_cache_only(codec->control_data, false); regcache_sync(codec->control_data); } + + /* Bypass the MICBIASes for lowest power */ + snd_soc_update_bits(codec, WM8996_MICBIAS_1, + WM8996_MICB1_MODE, WM8996_MICB1_MODE); + snd_soc_update_bits(codec, WM8996_MICBIAS_2, + WM8996_MICB2_MODE, WM8996_MICB2_MODE); break; case SND_SOC_BIAS_OFF: @@ -2825,8 +2837,6 @@ static int wm8996_probe(struct snd_soc_codec *codec) } } - regcache_cache_only(codec->control_data, true); - /* Apply platform data settings */ snd_soc_update_bits(codec, WM8996_LINE_INPUT_CONTROL, WM8996_INL_MODE_MASK | WM8996_INR_MODE_MASK, @@ -3039,7 +3049,6 @@ static int wm8996_remove(struct snd_soc_codec *codec) for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) regulator_unregister_notifier(wm8996->supplies[i].consumer, &wm8996->disable_nb[i]); - regulator_bulk_free(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); return 0; } @@ -3194,14 +3203,15 @@ static __devinit int wm8996_i2c_probe(struct i2c_client *i2c, dev_info(&i2c->dev, "revision %c\n", (reg & WM8996_CHIP_REV_MASK) + 'A'); - regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); - ret = wm8996_reset(wm8996); if (ret < 0) { dev_err(&i2c->dev, "Failed to issue reset\n"); goto err_regmap; } + regcache_cache_only(wm8996->regmap, true); + regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); + wm8996_init_gpio(wm8996); ret = snd_soc_register_codec(&i2c->dev, |