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Diffstat (limited to 'sound/soc/codecs/rt5640.c')
-rw-r--r--sound/soc/codecs/rt5640.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 8407c638cf8a..49256e2d151d 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -106,6 +106,18 @@ static int rt5640_reg_init(struct snd_soc_codec *codec)
}
#endif
+static int rt5640_index_sync(struct snd_soc_codec *codec)
+{
+ int i;
+
+ for (i = 0; i < RT5640_INIT_REG_LEN; i++)
+ if (RT5640_PRIV_INDEX == init_list[i].reg ||
+ RT5640_PRIV_DATA == init_list[i].reg)
+ snd_soc_write(codec, init_list[i].reg,
+ init_list[i].val);
+ return 0;
+}
+
static const u16 rt5640_reg[RT5640_VENDOR_ID2 + 1] = {
[RT5640_RESET] = 0x000c,
[RT5640_SPK_VOL] = 0xc8c8,
@@ -2269,7 +2281,9 @@ static int rt5640_set_bias_level(struct snd_soc_codec *codec,
RT5640_PWR_FV1 | RT5640_PWR_FV2,
RT5640_PWR_FV1 | RT5640_PWR_FV2);
codec->cache_only = false;
+ codec->cache_sync = 1;
snd_soc_cache_sync(codec);
+ rt5640_index_sync(codec);
}
break;
@@ -2381,6 +2395,7 @@ static int rt5640_remove(struct snd_soc_codec *codec)
#ifdef CONFIG_PM
static int rt5640_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
+ rt5640_reset(codec);
rt5640_set_bias_level(codec, SND_SOC_BIAS_OFF);
snd_soc_write(codec, RT5640_PWR_ANLG1, 0);
@@ -2389,6 +2404,14 @@ static int rt5640_suspend(struct snd_soc_codec *codec, pm_message_t state)
static int rt5640_resume(struct snd_soc_codec *codec)
{
+ int ret = 0 ;
+
+ codec->cache_sync = 1;
+ ret = snd_soc_cache_sync(codec);
+ if (ret) {
+ dev_err(codec->dev,"Failed to sync cache: %d\n", ret);
+ return ret;
+ }
rt5640_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;