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Diffstat (limited to 'sound/soc/codecs/rt5677.c')
-rw-r--r--sound/soc/codecs/rt5677.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index dc978ad59fc7..16aa4d99a713 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
+#include <linux/of_gpio.h>
#include <linux/regmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
@@ -541,6 +542,7 @@ static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -65625, 375, 0);
static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0);
static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -17625, 375, 0);
static const DECLARE_TLV_DB_SCALE(adc_bst_tlv, 0, 1200, 0);
+static const DECLARE_TLV_DB_SCALE(st_vol_tlv, -4650, 150, 0);
/* {0, +20, +24, +30, +35, +40, +44, +50, +52} dB */
static unsigned int bst_tlv[] = {
@@ -605,6 +607,10 @@ static const struct snd_kcontrol_new rt5677_snd_controls[] = {
RT5677_MONO_ADC_L_VOL_SFT, RT5677_MONO_ADC_R_VOL_SFT, 127, 0,
adc_vol_tlv),
+ /* Sidetone Control */
+ SOC_SINGLE_TLV("Sidetone Volume", RT5677_SIDETONE_CTRL,
+ RT5677_ST_VOL_SFT, 31, 0, st_vol_tlv),
+
/* ADC Boost Volume Control */
SOC_DOUBLE_TLV("STO1 ADC Boost Volume", RT5677_STO1_2_ADC_BST,
RT5677_STO1_ADC_L_BST_SFT, RT5677_STO1_ADC_R_BST_SFT, 3, 0,
@@ -1993,6 +1999,9 @@ static const struct snd_soc_dapm_widget rt5677_dapm_widgets[] = {
/* Sidetone Mux */
SND_SOC_DAPM_MUX("Sidetone Mux", SND_SOC_NOPM, 0, 0,
&rt5677_sidetone_mux),
+ SND_SOC_DAPM_SUPPLY("Sidetone Power", RT5677_SIDETONE_CTRL,
+ RT5677_ST_EN_SFT, 0, NULL, 0),
+
/* VAD Mux*/
SND_SOC_DAPM_MUX("VAD ADC Mux", SND_SOC_NOPM, 0, 0,
&rt5677_vad_src_mux),
@@ -2704,6 +2713,7 @@ static const struct snd_soc_dapm_route rt5677_dapm_routes[] = {
{ "Sidetone Mux", "DMIC4 L", "DMIC L4" },
{ "Sidetone Mux", "ADC1", "ADC 1" },
{ "Sidetone Mux", "ADC2", "ADC 2" },
+ { "Sidetone Mux", NULL, "Sidetone Power" },
{ "Stereo DAC MIXL", "ST L Switch", "Sidetone Mux" },
{ "Stereo DAC MIXL", "DAC1 L Switch", "DAC1 MIXL" },
@@ -3107,6 +3117,59 @@ static int rt5677_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
return 0;
}
+static int rt5677_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int slot_width)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ unsigned int val = 0;
+
+ if (rx_mask || tx_mask)
+ val |= (1 << 12);
+
+ switch (slots) {
+ case 4:
+ val |= (1 << 10);
+ break;
+ case 6:
+ val |= (2 << 10);
+ break;
+ case 8:
+ val |= (3 << 10);
+ break;
+ case 2:
+ default:
+ break;
+ }
+
+ switch (slot_width) {
+ case 20:
+ val |= (1 << 8);
+ break;
+ case 24:
+ val |= (2 << 8);
+ break;
+ case 32:
+ val |= (3 << 8);
+ break;
+ case 16:
+ default:
+ break;
+ }
+
+ switch (dai->id) {
+ case RT5677_AIF1:
+ snd_soc_update_bits(codec, RT5677_TDM1_CTRL1, 0x1f00, val);
+ break;
+ case RT5677_AIF2:
+ snd_soc_update_bits(codec, RT5677_TDM2_CTRL1, 0x1f00, val);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
static int rt5677_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
@@ -3316,6 +3379,8 @@ static int rt5677_remove(struct snd_soc_codec *codec)
struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec);
regmap_write(rt5677->regmap, RT5677_RESET, 0x10ec);
+ if (gpio_is_valid(rt5677->pow_ldo2))
+ gpio_set_value_cansleep(rt5677->pow_ldo2, 0);
return 0;
}
@@ -3327,6 +3392,8 @@ static int rt5677_suspend(struct snd_soc_codec *codec)
regcache_cache_only(rt5677->regmap, true);
regcache_mark_dirty(rt5677->regmap);
+ if (gpio_is_valid(rt5677->pow_ldo2))
+ gpio_set_value_cansleep(rt5677->pow_ldo2, 0);
return 0;
}
@@ -3335,6 +3402,10 @@ static int rt5677_resume(struct snd_soc_codec *codec)
{
struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec);
+ if (gpio_is_valid(rt5677->pow_ldo2)) {
+ gpio_set_value_cansleep(rt5677->pow_ldo2, 1);
+ msleep(10);
+ }
regcache_cache_only(rt5677->regmap, false);
regcache_sync(rt5677->regmap);
@@ -3354,6 +3425,7 @@ static struct snd_soc_dai_ops rt5677_aif_dai_ops = {
.set_fmt = rt5677_set_dai_fmt,
.set_sysclk = rt5677_set_dai_sysclk,
.set_pll = rt5677_set_dai_pll,
+ .set_tdm_slot = rt5677_set_tdm_slot,
};
static struct snd_soc_dai_driver rt5677_dai[] = {
@@ -3492,6 +3564,35 @@ static const struct i2c_device_id rt5677_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id);
+static int rt5677_parse_dt(struct rt5677_priv *rt5677, struct device_node *np)
+{
+ rt5677->pdata.in1_diff = of_property_read_bool(np,
+ "realtek,in1-differential");
+ rt5677->pdata.in2_diff = of_property_read_bool(np,
+ "realtek,in2-differential");
+ rt5677->pdata.lout1_diff = of_property_read_bool(np,
+ "realtek,lout1-differential");
+ rt5677->pdata.lout2_diff = of_property_read_bool(np,
+ "realtek,lout2-differential");
+ rt5677->pdata.lout3_diff = of_property_read_bool(np,
+ "realtek,lout3-differential");
+
+ rt5677->pow_ldo2 = of_get_named_gpio(np,
+ "realtek,pow-ldo2-gpio", 0);
+
+ /*
+ * POW_LDO2 is optional (it may be statically tied on the board).
+ * -ENOENT means that the property doesn't exist, i.e. there is no
+ * GPIO, so is not an error. Any other error code means the property
+ * exists, but could not be parsed.
+ */
+ if (!gpio_is_valid(rt5677->pow_ldo2) &&
+ (rt5677->pow_ldo2 != -ENOENT))
+ return rt5677->pow_ldo2;
+
+ return 0;
+}
+
static int rt5677_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -3510,6 +3611,33 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
if (pdata)
rt5677->pdata = *pdata;
+ if (i2c->dev.of_node) {
+ ret = rt5677_parse_dt(rt5677, i2c->dev.of_node);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to parse device tree: %d\n",
+ ret);
+ return ret;
+ }
+ } else {
+ rt5677->pow_ldo2 = -EINVAL;
+ }
+
+ if (gpio_is_valid(rt5677->pow_ldo2)) {
+ ret = devm_gpio_request_one(&i2c->dev, rt5677->pow_ldo2,
+ GPIOF_OUT_INIT_HIGH,
+ "RT5677 POW_LDO2");
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to request POW_LDO2 %d: %d\n",
+ rt5677->pow_ldo2, ret);
+ return ret;
+ }
+ /* Wait a while until I2C bus becomes available. The datasheet
+ * does not specify the exact we should wait but startup
+ * sequence mentiones at least a few milliseconds.
+ */
+ msleep(10);
+ }
+
rt5677->regmap = devm_regmap_init_i2c(i2c, &rt5677_regmap);
if (IS_ERR(rt5677->regmap)) {
ret = PTR_ERR(rt5677->regmap);
@@ -3540,6 +3668,18 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
regmap_update_bits(rt5677->regmap, RT5677_IN1,
RT5677_IN_DF2, RT5677_IN_DF2);
+ if (rt5677->pdata.lout1_diff)
+ regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
+ RT5677_LOUT1_L_DF, RT5677_LOUT1_L_DF);
+
+ if (rt5677->pdata.lout2_diff)
+ regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
+ RT5677_LOUT2_L_DF, RT5677_LOUT2_L_DF);
+
+ if (rt5677->pdata.lout3_diff)
+ regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
+ RT5677_LOUT3_L_DF, RT5677_LOUT3_L_DF);
+
if (rt5677->pdata.dmic2_clk_pin == RT5677_DMIC_CLK2) {
regmap_update_bits(rt5677->regmap, RT5677_GEN_CTRL2,
RT5677_GPIO5_FUNC_MASK,
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