ASoC: twl6040: Select LPPLL during standby
When the codec is in standby we do not need to keep the HPPLL active.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index bc3de2e..7a744b5 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -824,7 +824,7 @@
{
struct twl6040 *twl6040 = codec->control_data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
- int ret;
+ int ret = 0;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -832,12 +832,16 @@
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- if (priv->codec_powered)
+ if (priv->codec_powered) {
+ /* Select low power PLL in standby */
+ ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
+ 32768, 19200000);
break;
+ }
ret = twl6040_power(twl6040, 1);
if (ret)
- return ret;
+ break;
priv->codec_powered = 1;
@@ -853,7 +857,7 @@
break;
}
- return 0;
+ return ret;
}
static int twl6040_startup(struct snd_pcm_substream *substream,