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Diffstat (limited to 'sound/soc/codecs/ak4642.c')
-rw-r--r--sound/soc/codecs/ak4642.c41
1 files changed, 36 insertions, 5 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index dde8b49c19ad..13585e88f597 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -97,6 +97,9 @@
#define PMMP (1 << 2) /* MPWR pin Power Management */
#define MGAIN0 (1 << 0) /* MIC amp gain*/
+/* SG_SL2 */
+#define LOPS (1 << 6) /* Stero Line-out Power Save Mode */
+
/* TIMER */
#define ZTM(param) ((param & 0x3) << 4) /* ALC Zero Crossing TimeOut */
#define WTM(param) (((param & 0x4) << 4) | ((param & 0x3) << 2))
@@ -168,6 +171,29 @@ static const struct snd_kcontrol_new ak4642_lout_mixer_controls[] = {
SOC_DAPM_SINGLE("DACL", SG_SL1, 4, 1, 0),
};
+/* event handlers */
+static int ak4642_lout_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMD:
+ case SND_SOC_DAPM_PRE_PMU:
+ /* Power save mode ON */
+ snd_soc_update_bits(codec, SG_SL2, LOPS, LOPS);
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ case SND_SOC_DAPM_POST_PMD:
+ /* Power save mode OFF */
+ mdelay(300);
+ snd_soc_update_bits(codec, SG_SL2, LOPS, 0);
+ break;
+ }
+
+ return 0;
+}
+
static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = {
/* Outputs */
@@ -182,12 +208,15 @@ static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = {
SND_SOC_DAPM_PGA("DACH", MD_CTL4, 0, 0, NULL, 0),
- SND_SOC_DAPM_MIXER("LINEOUT Mixer", PW_MGMT1, 3, 0,
+ SND_SOC_DAPM_MIXER_E("LINEOUT Mixer", PW_MGMT1, 3, 0,
&ak4642_lout_mixer_controls[0],
- ARRAY_SIZE(ak4642_lout_mixer_controls)),
+ ARRAY_SIZE(ak4642_lout_mixer_controls),
+ ak4642_lout_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
/* DAC */
- SND_SOC_DAPM_DAC("DAC", "HiFi Playback", PW_MGMT1, 2, 0),
+ SND_SOC_DAPM_DAC("DAC", NULL, PW_MGMT1, 2, 0),
};
static const struct snd_soc_dapm_route ak4642_intercon[] = {
@@ -205,6 +234,8 @@ static const struct snd_soc_dapm_route ak4642_intercon[] = {
{"DACH", NULL, "DAC"},
{"LINEOUT Mixer", "DACL", "DAC"},
+
+ { "DAC", NULL, "Playback" },
};
/*
@@ -468,13 +499,13 @@ static struct snd_soc_dai_driver ak4642_dai = {
.name = "ak4642-hifi",
.playback = {
.stream_name = "Playback",
- .channels_min = 1,
+ .channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE },
.capture = {
.stream_name = "Capture",
- .channels_min = 1,
+ .channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE },