Add LDO output selection for dacref.

Signed-off-by: Jack Yu jack.yu@realtek.com --- include/sound/rt5682s.h | 8 ++++++++ sound/soc/codecs/rt5682s.c | 23 +++++++++++++++++++++++ sound/soc/codecs/rt5682s.h | 7 +++++++ 3 files changed, 38 insertions(+)

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)