/* default value of sgtl5000 registers */
static const struct reg_default sgtl5000_reg_defaults[] = {
{ SGTL5000_CHIP_DIG_POWER, 0x0000 },
- { SGTL5000_CHIP_CLK_CTRL, 0x0008 },
{ SGTL5000_CHIP_I2S_CTRL, 0x0010 },
{ SGTL5000_CHIP_SSS_CTRL, 0x0010 },
{ SGTL5000_CHIP_ADCDAC_CTRL, 0x020c },
{ SGTL5000_CHIP_ANA_ADC_CTRL, 0x0000 },
{ SGTL5000_CHIP_ANA_HP_CTRL, 0x1818 },
{ SGTL5000_CHIP_ANA_CTRL, 0x0111 },
- { SGTL5000_CHIP_LINREG_CTRL, 0x0000 },
{ SGTL5000_CHIP_REF_CTRL, 0x0000 },
{ SGTL5000_CHIP_MIC_CTRL, 0x0000 },
{ SGTL5000_CHIP_LINE_OUT_CTRL, 0x0000 },
{ SGTL5000_CHIP_LINE_OUT_VOL, 0x0404 },
- { SGTL5000_CHIP_ANA_POWER, 0x7060 },
{ SGTL5000_CHIP_PLL_CTRL, 0x5000 },
{ SGTL5000_CHIP_CLK_TOP_CTRL, 0x0000 },
{ SGTL5000_CHIP_ANA_STATUS, 0x0000 },
"VDDD"
};
-#define LDO_CONSUMER_NAME "VDDD_LDO"
#define LDO_VOLTAGE 1200000
-
-static struct regulator_consumer_supply ldo_consumer[] = {
- REGULATOR_SUPPLY(LDO_CONSUMER_NAME, NULL),
-};
-
-static struct regulator_init_data ldo_init_data = {
- .constraints = {
- .min_uV = 1200000,
- .max_uV = 1200000,
- .valid_modes_mask = REGULATOR_MODE_NORMAL,
- .valid_ops_mask = REGULATOR_CHANGE_STATUS,
- },
- .num_consumer_supplies = 1,
- .consumer_supplies = &ldo_consumer[0],
-};
-
-/*
- * sgtl5000 internal ldo regulator,
- * enabled when VDDD not provided
- */
-struct ldo_regulator {
- struct regulator_desc desc;
- struct regulator_dev *dev;
- int voltage;
- void *codec_data;
- bool enabled;
-};
+#define LINREG_VDDD ((1600 - LDO_VOLTAGE / 1000) / 50)
enum sgtl5000_micbias_resistor {
SGTL5000_MICBIAS_OFF = 0,
int master; /* i2s master or not */
int fmt; /* i2s data format */
struct regulator_bulk_data supplies[SGTL5000_SUPPLY_NUM];
- struct ldo_regulator *ldo;
+ int num_supplies;
struct regmap *regmap;
struct clk *mclk;
int revision;
/* tlv for hp volume, -51.5db to 12.0db, step .5db */
static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0);
+/* tlv for lineout volume, 31 steps of .5db each */
+static const DECLARE_TLV_DB_SCALE(lineout_volume, -1550, 50, 0);
+
static const struct snd_kcontrol_new sgtl5000_snd_controls[] = {
/* SOC_DOUBLE_S8_TLV with invert */
{
SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL,
0, 3, 0, mic_gain_tlv),
+
+ SOC_DOUBLE_TLV("Lineout Playback Volume",
+ SGTL5000_CHIP_LINE_OUT_VOL,
+ SGTL5000_LINE_OUT_VOL_LEFT_SHIFT,
+ SGTL5000_LINE_OUT_VOL_RIGHT_SHIFT,
+ 0x1f, 1,
+ lineout_volume),
};
/* mute the codec used by alsa core */
return 0;
}
-#ifdef CONFIG_REGULATOR
-static int ldo_regulator_is_enabled(struct regulator_dev *dev)
-{
- struct ldo_regulator *ldo = rdev_get_drvdata(dev);
-
- return ldo->enabled;
-}
-
-static int ldo_regulator_enable(struct regulator_dev *dev)
-{
- struct ldo_regulator *ldo = rdev_get_drvdata(dev);
- struct snd_soc_codec *codec = (struct snd_soc_codec *)ldo->codec_data;
- int reg;
-
- if (ldo_regulator_is_enabled(dev))
- return 0;
-
- /* set regulator value firstly */
- reg = (1600 - ldo->voltage / 1000) / 50;
- reg = clamp(reg, 0x0, 0xf);
-
- /* amend the voltage value, unit: uV */
- ldo->voltage = (1600 - reg * 50) * 1000;
-
- /* set voltage to register */
- snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL,
- SGTL5000_LINREG_VDDD_MASK, reg);
-
- snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_LINEREG_D_POWERUP,
- SGTL5000_LINEREG_D_POWERUP);
-
- /* when internal ldo is enabled, simple digital power can be disabled */
- snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_LINREG_SIMPLE_POWERUP,
- 0);
-
- ldo->enabled = 1;
- return 0;
-}
-
-static int ldo_regulator_disable(struct regulator_dev *dev)
-{
- struct ldo_regulator *ldo = rdev_get_drvdata(dev);
- struct snd_soc_codec *codec = (struct snd_soc_codec *)ldo->codec_data;
-
- snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_LINEREG_D_POWERUP,
- 0);
-
- /* clear voltage info */
- snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL,
- SGTL5000_LINREG_VDDD_MASK, 0);
-
- ldo->enabled = 0;
-
- return 0;
-}
-
-static int ldo_regulator_get_voltage(struct regulator_dev *dev)
-{
- struct ldo_regulator *ldo = rdev_get_drvdata(dev);
-
- return ldo->voltage;
-}
-
-static struct regulator_ops ldo_regulator_ops = {
- .is_enabled = ldo_regulator_is_enabled,
- .enable = ldo_regulator_enable,
- .disable = ldo_regulator_disable,
- .get_voltage = ldo_regulator_get_voltage,
-};
-
-static int ldo_regulator_register(struct snd_soc_codec *codec,
- struct regulator_init_data *init_data,
- int voltage)
-{
- struct ldo_regulator *ldo;
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
- struct regulator_config config = { };
-
- ldo = kzalloc(sizeof(struct ldo_regulator), GFP_KERNEL);
-
- if (!ldo)
- return -ENOMEM;
-
- ldo->desc.name = kstrdup(dev_name(codec->dev), GFP_KERNEL);
- if (!ldo->desc.name) {
- kfree(ldo);
- dev_err(codec->dev, "failed to allocate decs name memory\n");
- return -ENOMEM;
- }
-
- ldo->desc.type = REGULATOR_VOLTAGE;
- ldo->desc.owner = THIS_MODULE;
- ldo->desc.ops = &ldo_regulator_ops;
- ldo->desc.n_voltages = 1;
-
- ldo->codec_data = codec;
- ldo->voltage = voltage;
-
- config.dev = codec->dev;
- config.driver_data = ldo;
- config.init_data = init_data;
-
- ldo->dev = regulator_register(&ldo->desc, &config);
- if (IS_ERR(ldo->dev)) {
- int ret = PTR_ERR(ldo->dev);
-
- dev_err(codec->dev, "failed to register regulator\n");
- kfree(ldo->desc.name);
- kfree(ldo);
-
- return ret;
- }
- sgtl5000->ldo = ldo;
-
- return 0;
-}
-
-static int ldo_regulator_remove(struct snd_soc_codec *codec)
-{
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
- struct ldo_regulator *ldo = sgtl5000->ldo;
-
- if (!ldo)
- return 0;
-
- regulator_unregister(ldo->dev);
- kfree(ldo->desc.name);
- kfree(ldo);
-
- return 0;
-}
-#else
-static int ldo_regulator_register(struct snd_soc_codec *codec,
- struct regulator_init_data *init_data,
- int voltage)
-{
- dev_err(codec->dev, "this setup needs regulator support in the kernel\n");
- return -EINVAL;
-}
-
-static int ldo_regulator_remove(struct snd_soc_codec *codec)
-{
- return 0;
-}
-#endif
-
/*
* set dac bias
* common state changes:
static int sgtl5000_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- int ret;
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
-
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
- break;
case SND_SOC_BIAS_STANDBY:
- if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
- ret = regulator_bulk_enable(
- ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- if (ret)
- return ret;
- udelay(10);
-
- regcache_cache_only(sgtl5000->regmap, false);
-
- ret = regcache_sync(sgtl5000->regmap);
- if (ret != 0) {
- dev_err(codec->dev,
- "Failed to restore cache: %d\n", ret);
-
- regcache_cache_only(sgtl5000->regmap, true);
- regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
-
- return ret;
- }
- }
-
+ snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
+ SGTL5000_REFTOP_POWERUP,
+ SGTL5000_REFTOP_POWERUP);
break;
case SND_SOC_BIAS_OFF:
- regcache_cache_only(sgtl5000->regmap, true);
- regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
+ snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
+ SGTL5000_REFTOP_POWERUP, 0);
break;
}
* and should be set according to:
* 1. vddd provided by external or not
* 2. vdda and vddio voltage value. > 3.1v or not
- * 3. chip revision >=0x11 or not. If >=0x11, not use external vddd.
*/
static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
{
vdda = regulator_get_voltage(sgtl5000->supplies[VDDA].consumer);
vddio = regulator_get_voltage(sgtl5000->supplies[VDDIO].consumer);
- vddd = regulator_get_voltage(sgtl5000->supplies[VDDD].consumer);
+ vddd = (sgtl5000->num_supplies > VDDD)
+ ? regulator_get_voltage(sgtl5000->supplies[VDDD].consumer)
+ : LDO_VOLTAGE;
vdda = vdda / 1000;
vddio = vddio / 1000;
snd_soc_write(codec, SGTL5000_CHIP_ANA_POWER, ana_pwr);
- /* set voltage to register */
- snd_soc_update_bits(codec, SGTL5000_CHIP_LINREG_CTRL,
- SGTL5000_LINREG_VDDD_MASK, 0x8);
-
- /*
- * if vddd linear reg has been enabled,
- * simple digital supply should be clear to get
- * proper VDDD voltage.
- */
- if (ana_pwr & SGTL5000_LINEREG_D_POWERUP)
- snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_LINREG_SIMPLE_POWERUP,
- 0);
- else
- snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_LINREG_SIMPLE_POWERUP |
- SGTL5000_STARTUP_POWERUP,
- 0);
-
/*
* set ADC/DAC VAG to vdda / 2,
* should stay in range (0.8v, 1.575v)
return 0;
}
-static int sgtl5000_replace_vddd_with_ldo(struct snd_soc_codec *codec)
-{
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
- int ret;
-
- /* set internal ldo to 1.2v */
- ret = ldo_regulator_register(codec, &ldo_init_data, LDO_VOLTAGE);
- if (ret) {
- dev_err(codec->dev,
- "Failed to register vddd internal supplies: %d\n", ret);
- return ret;
- }
-
- sgtl5000->supplies[VDDD].supply = LDO_CONSUMER_NAME;
-
- dev_info(codec->dev, "Using internal LDO instead of VDDD\n");
- return 0;
-}
-
-static int sgtl5000_enable_regulators(struct snd_soc_codec *codec)
+static int sgtl5000_enable_regulators(struct i2c_client *client)
{
int ret;
int i;
int external_vddd = 0;
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
struct regulator *vddd;
+ struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client);
for (i = 0; i < ARRAY_SIZE(sgtl5000->supplies); i++)
sgtl5000->supplies[i].supply = supply_names[i];
- /* External VDDD only works before revision 0x11 */
- if (sgtl5000->revision < 0x11) {
- vddd = regulator_get_optional(codec->dev, "VDDD");
- if (IS_ERR(vddd)) {
- /* See if it's just not registered yet */
- if (PTR_ERR(vddd) == -EPROBE_DEFER)
- return -EPROBE_DEFER;
- } else {
- external_vddd = 1;
- regulator_put(vddd);
- }
- }
-
- if (!external_vddd) {
- ret = sgtl5000_replace_vddd_with_ldo(codec);
- if (ret)
- return ret;
+ vddd = regulator_get_optional(&client->dev, "VDDD");
+ if (IS_ERR(vddd)) {
+ /* See if it's just not registered yet */
+ if (PTR_ERR(vddd) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ } else {
+ external_vddd = 1;
+ regulator_put(vddd);
}
- ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(sgtl5000->supplies),
+ sgtl5000->num_supplies = ARRAY_SIZE(sgtl5000->supplies)
+ - 1 + external_vddd;
+ ret = regulator_bulk_get(&client->dev, sgtl5000->num_supplies,
sgtl5000->supplies);
if (ret)
- goto err_ldo_remove;
-
- ret = regulator_bulk_enable(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- if (ret)
- goto err_regulator_free;
-
- /* wait for all power rails bring up */
- udelay(10);
+ return ret;
- return 0;
+ ret = regulator_bulk_enable(sgtl5000->num_supplies,
+ sgtl5000->supplies);
+ if (!ret)
+ usleep_range(10, 20);
+ else
+ regulator_bulk_free(sgtl5000->num_supplies,
+ sgtl5000->supplies);
-err_regulator_free:
- regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
-err_ldo_remove:
- if (!external_vddd)
- ldo_regulator_remove(codec);
return ret;
-
}
static int sgtl5000_probe(struct snd_soc_codec *codec)
int ret;
struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
- ret = sgtl5000_enable_regulators(codec);
- if (ret)
- return ret;
-
/* power up sgtl5000 */
ret = sgtl5000_set_power_regs(codec);
if (ret)
return 0;
err:
- regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- ldo_regulator_remove(codec);
-
return ret;
}
static int sgtl5000_remove(struct snd_soc_codec *codec)
{
- struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
-
- regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies),
- sgtl5000->supplies);
- ldo_regulator_remove(codec);
-
return 0;
}
* and avoid problems like, not being able to probe after an audio playback
* followed by a system reset or a 'reboot' command in Linux
*/
-static int sgtl5000_fill_defaults(struct sgtl5000_priv *sgtl5000)
+static void sgtl5000_fill_defaults(struct i2c_client *client)
{
+ struct sgtl5000_priv *sgtl5000 = i2c_get_clientdata(client);
int i, ret, val, index;
for (i = 0; i < ARRAY_SIZE(sgtl5000_reg_defaults); i++) {
index = sgtl5000_reg_defaults[i].reg;
ret = regmap_write(sgtl5000->regmap, index, val);
if (ret)
- return ret;
+ dev_err(&client->dev,
+ "%s: error %d setting reg 0x%02x to 0x%04x\n",
+ __func__, ret, index, val);
}
-
- return 0;
}
static int sgtl5000_i2c_probe(struct i2c_client *client,
int ret, reg, rev;
struct device_node *np = client->dev.of_node;
u32 value;
+ u16 ana_pwr;
sgtl5000 = devm_kzalloc(&client->dev, sizeof(*sgtl5000), GFP_KERNEL);
if (!sgtl5000)
return -ENOMEM;
+ i2c_set_clientdata(client, sgtl5000);
+
+ ret = sgtl5000_enable_regulators(client);
+ if (ret)
+ return ret;
+
sgtl5000->regmap = devm_regmap_init_i2c(client, &sgtl5000_regmap);
if (IS_ERR(sgtl5000->regmap)) {
ret = PTR_ERR(sgtl5000->regmap);
dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret);
- return ret;
+ goto disable_regs;
}
sgtl5000->mclk = devm_clk_get(&client->dev, NULL);
dev_err(&client->dev, "Failed to get mclock: %d\n", ret);
/* Defer the probe to see if the clk will be provided later */
if (ret == -ENOENT)
- return -EPROBE_DEFER;
- return ret;
+ ret = -EPROBE_DEFER;
+ goto disable_regs;
}
ret = clk_prepare_enable(sgtl5000->mclk);
- if (ret)
- return ret;
+ if (ret) {
+ dev_err(&client->dev, "Error enabling clock %d\n", ret);
+ goto disable_regs;
+ }
/* Need 8 clocks before I2C accesses */
udelay(1);
/* read chip information */
ret = regmap_read(sgtl5000->regmap, SGTL5000_CHIP_ID, ®);
- if (ret)
+ if (ret) {
+ dev_err(&client->dev, "Error reading chip id %d\n", ret);
goto disable_clk;
+ }
if (((reg & SGTL5000_PARTID_MASK) >> SGTL5000_PARTID_SHIFT) !=
SGTL5000_PARTID_PART_ID) {
dev_info(&client->dev, "sgtl5000 revision 0x%x\n", rev);
sgtl5000->revision = rev;
+ /* reconfigure the clocks in case we're using the PLL */
+ ret = regmap_write(sgtl5000->regmap,
+ SGTL5000_CHIP_CLK_CTRL,
+ SGTL5000_CHIP_CLK_CTRL_DEFAULT);
+ if (ret)
+ dev_err(&client->dev,
+ "Error %d initializing CHIP_CLK_CTRL\n", ret);
+
+ /* Follow section 2.2.1.1 of AN3663 */
+ ana_pwr = SGTL5000_ANA_POWER_DEFAULT;
+ if (sgtl5000->num_supplies <= VDDD) {
+ /* internal VDDD at 1.2V */
+ ret = regmap_update_bits(sgtl5000->regmap,
+ SGTL5000_CHIP_LINREG_CTRL,
+ SGTL5000_LINREG_VDDD_MASK,
+ LINREG_VDDD);
+ if (ret)
+ dev_err(&client->dev,
+ "Error %d setting LINREG_VDDD\n", ret);
+
+ ana_pwr |= SGTL5000_LINEREG_D_POWERUP;
+ dev_info(&client->dev,
+ "Using internal LDO instead of VDDD: check ER1\n");
+ } else {
+ /* using external LDO for VDDD
+ * Clear startup powerup and simple powerup
+ * bits to save power
+ */
+ ana_pwr &= ~(SGTL5000_STARTUP_POWERUP
+ | SGTL5000_LINREG_SIMPLE_POWERUP);
+ dev_dbg(&client->dev, "Using external VDDD\n");
+ }
+ ret = regmap_write(sgtl5000->regmap, SGTL5000_CHIP_ANA_POWER, ana_pwr);
+ if (ret)
+ dev_err(&client->dev,
+ "Error %d setting CHIP_ANA_POWER to %04x\n",
+ ret, ana_pwr);
+
if (np) {
if (!of_property_read_u32(np,
"micbias-resistor-k-ohms", &value)) {
}
}
- i2c_set_clientdata(client, sgtl5000);
-
/* Ensure sgtl5000 will start with sane register values */
- ret = sgtl5000_fill_defaults(sgtl5000);
- if (ret)
- goto disable_clk;
+ sgtl5000_fill_defaults(client);
ret = snd_soc_register_codec(&client->dev,
&sgtl5000_driver, &sgtl5000_dai, 1);
disable_clk:
clk_disable_unprepare(sgtl5000->mclk);
+
+disable_regs:
+ regulator_bulk_disable(sgtl5000->num_supplies, sgtl5000->supplies);
+ regulator_bulk_free(sgtl5000->num_supplies, sgtl5000->supplies);
+
return ret;
}
snd_soc_unregister_codec(&client->dev);
clk_disable_unprepare(sgtl5000->mclk);
+ regulator_bulk_disable(sgtl5000->num_supplies, sgtl5000->supplies);
+ regulator_bulk_free(sgtl5000->num_supplies, sgtl5000->supplies);
+
return 0;
}
projects / deliverable / linux.git / blobdiff