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Diffstat (limited to 'sound/soc/codecs/rt1308-sdw.c')
-rw-r--r--sound/soc/codecs/rt1308-sdw.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c
index f43520ca3187..e566c8ddd3e9 100644
--- a/sound/soc/codecs/rt1308-sdw.c
+++ b/sound/soc/codecs/rt1308-sdw.c
@@ -52,6 +52,7 @@ static bool rt1308_volatile_register(struct device *dev, unsigned int reg)
case 0x300a:
case 0xc000:
case 0xc710:
+ case 0xcf01:
case 0xc860 ... 0xc863:
case 0xc870 ... 0xc873:
return true;
@@ -213,7 +214,7 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave)
{
struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev);
int ret = 0;
- unsigned int tmp;
+ unsigned int tmp, hibernation_flag;
if (rt1308->hw_init)
return 0;
@@ -242,6 +243,10 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave)
pm_runtime_get_noresume(&slave->dev);
+ regmap_read(rt1308->regmap, 0xcf01, &hibernation_flag);
+ if ((hibernation_flag != 0x00) && rt1308->first_hw_init)
+ goto _preset_ready_;
+
/* sw reset */
regmap_write(rt1308->regmap, RT1308_SDW_RESET, 0);
@@ -282,6 +287,12 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave)
regmap_write(rt1308->regmap, 0xc100, 0xd7);
regmap_write(rt1308->regmap, 0xc101, 0xd7);
+ /* apply BQ params */
+ rt1308_apply_bq_params(rt1308);
+
+ regmap_write(rt1308->regmap, 0xcf01, 0x01);
+
+_preset_ready_:
if (rt1308->first_hw_init) {
regcache_cache_bypass(rt1308->regmap, false);
regcache_mark_dirty(rt1308->regmap);