Move the codec power on (in reg 0x01, bit 4) from set_bias_level:SND_SOC_BIAS_ON to a DAPM supply. In this way we can be sure, that all the things within the codec is powered before the external amp is going to be enabled.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@nokia.com --- sound/soc/codecs/tlv320dac33.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index 6c3735d..c109f6d 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/sound/soc/codecs/tlv320dac33.c @@ -587,6 +587,9 @@ static const struct snd_soc_dapm_widget dac33_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("Right DAC Power", DAC33_RDAC_PWR_CTRL, 2, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Codec Power", + DAC33_PWR_CTRL, 4, 0, NULL, 0), + SND_SOC_DAPM_PRE("Pre Playback", dac33_playback_event), SND_SOC_DAPM_POST("Post Playback", dac33_playback_event), }; @@ -619,6 +622,9 @@ static const struct snd_soc_dapm_route audio_map[] = { /* output */ {"LEFT_LO", NULL, "Output Left Amplifier"}, {"RIGHT_LO", NULL, "Output Right Amplifier"}, + + {"LEFT_LO", NULL, "Codec Power"}, + {"RIGHT_LO", NULL, "Codec Power"}, };
static int dac33_add_widgets(struct snd_soc_codec *codec) @@ -636,13 +642,10 @@ static int dac33_add_widgets(struct snd_soc_codec *codec) static int dac33_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); int ret;
switch (level) { case SND_SOC_BIAS_ON: - if (!dac33->substream) - dac33_soft_power(codec, 1); break; case SND_SOC_BIAS_PREPARE: break;