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-rw-r--r--include/sound/rt5682s.h8
-rw-r--r--sound/soc/codecs/rt5682s.c23
-rw-r--r--sound/soc/codecs/rt5682s.h7
3 files changed, 38 insertions, 0 deletions
diff --git a/include/sound/rt5682s.h b/include/sound/rt5682s.h
index 66ca0c75b914..006e6003d11c 100644
--- a/include/sound/rt5682s.h
+++ b/include/sound/rt5682s.h
@@ -31,6 +31,13 @@ enum rt5682s_dai_clks {
RT5682S_DAI_NUM_CLKS,
};
+enum {
+ RT5682S_LDO_1_607V,
+ RT5682S_LDO_1_5V,
+ RT5682S_LDO_1_406V,
+ RT5682S_LDO_1_731V,
+};
+
struct rt5682s_platform_data {
enum rt5682s_dmic1_data_pin dmic1_data_pin;
enum rt5682s_dmic1_clk_pin dmic1_clk_pin;
@@ -38,6 +45,7 @@ struct rt5682s_platform_data {
unsigned int dmic_clk_rate;
unsigned int dmic_delay;
unsigned int amic_delay;
+ unsigned int ldo_dacref;
bool dmic_clk_driving_high;
const char *dai_clk_names[RT5682S_DAI_NUM_CLKS];
diff --git a/sound/soc/codecs/rt5682s.c b/sound/soc/codecs/rt5682s.c
index c261c33c4be7..3322056bbb3b 100644
--- a/sound/soc/codecs/rt5682s.c
+++ b/sound/soc/codecs/rt5682s.c
@@ -2971,6 +2971,8 @@ static int rt5682s_parse_dt(struct rt5682s_priv *rt5682s, struct device *dev)
&rt5682s->pdata.dmic_delay);
device_property_read_u32(dev, "realtek,amic-delay-ms",
&rt5682s->pdata.amic_delay);
+ device_property_read_u32(dev, "realtek,ldo-sel",
+ &rt5682s->pdata.ldo_dacref);
if (device_property_read_string_array(dev, "clock-output-names",
rt5682s->pdata.dai_clk_names,
@@ -3250,6 +3252,27 @@ static int rt5682s_i2c_probe(struct i2c_client *i2c)
break;
}
+ /* LDO output voltage control */
+ switch (rt5682s->pdata.ldo_dacref) {
+ case RT5682S_LDO_1_607V:
+ break;
+ case RT5682S_LDO_1_5V:
+ regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+ RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_5V);
+ break;
+ case RT5682S_LDO_1_406V:
+ regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+ RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_406V);
+ break;
+ case RT5682S_LDO_1_731V:
+ regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+ RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_731V);
+ break;
+ default:
+ dev_warn(&i2c->dev, "invalid LDO output setting.\n");
+ break;
+ }
+
INIT_DELAYED_WORK(&rt5682s->jack_detect_work, rt5682s_jack_detect_handler);
INIT_DELAYED_WORK(&rt5682s->jd_check_work, rt5682s_jd_check_handler);
diff --git a/sound/soc/codecs/rt5682s.h b/sound/soc/codecs/rt5682s.h
index 1d79d432d0d8..67f42898de96 100644
--- a/sound/soc/codecs/rt5682s.h
+++ b/sound/soc/codecs/rt5682s.h
@@ -1263,6 +1263,13 @@
#define RT5682S_JDH_NO_PLUG (0x1 << 4)
#define RT5682S_JDH_PLUG (0x0 << 4)
+/* Bias current control 7 (0x0110) */
+#define RT5682S_LDO_DACREF_MASK (0x3 << 4)
+#define RT5682S_LDO_DACREF_1_607V (0x0 << 4)
+#define RT5682S_LDO_DACREF_1_5V (0x1 << 4)
+#define RT5682S_LDO_DACREF_1_406V (0x2 << 4)
+#define RT5682S_LDO_DACREF_1_731V (0x3 << 4)
+
/* Charge Pump Internal Register1 (0x0125) */
#define RT5682S_CP_CLK_HP_MASK (0x3 << 4)
#define RT5682S_CP_CLK_HP_100KHZ (0x0 << 4)