#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include <linux/i2c.h>
#include <linux/cdev.h>
#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
#include <sound/tlv320aic32x4.h>
#include <sound/core.h>
u32 micpga_routing;
bool swapdacs;
int rstn_gpio;
+ struct clk *mclk;
+
+ struct regulator *supply_ldo;
+ struct regulator *supply_iov;
+ struct regulator *supply_dv;
+ struct regulator *supply_av;
};
-/* 0dB min, 1dB steps */
-static DECLARE_TLV_DB_SCALE(tlv_step_1, 0, 100, 0);
/* 0dB min, 0.5dB steps */
static DECLARE_TLV_DB_SCALE(tlv_step_0_5, 0, 50, 0);
+/* -63.5dB min, 0.5dB steps */
+static DECLARE_TLV_DB_SCALE(tlv_pcm, -6350, 50, 0);
+/* -6dB min, 1dB steps */
+static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0);
+/* -12dB min, 0.5dB steps */
+static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);
static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
- SOC_DOUBLE_R_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
- AIC32X4_RDACVOL, 0, 0x30, 0, tlv_step_0_5),
- SOC_DOUBLE_R_TLV("HP Driver Gain Volume", AIC32X4_HPLGAIN,
- AIC32X4_HPRGAIN, 0, 0x1D, 0, tlv_step_1),
- SOC_DOUBLE_R_TLV("LO Driver Gain Volume", AIC32X4_LOLGAIN,
- AIC32X4_LORGAIN, 0, 0x1D, 0, tlv_step_1),
+ SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
+ AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
+ SOC_DOUBLE_R_S_TLV("HP Driver Gain Volume", AIC32X4_HPLGAIN,
+ AIC32X4_HPRGAIN, 0, -0x6, 0x1d, 5, 0,
+ tlv_driver_gain),
+ SOC_DOUBLE_R_S_TLV("LO Driver Gain Volume", AIC32X4_LOLGAIN,
+ AIC32X4_LORGAIN, 0, -0x6, 0x1d, 5, 0,
+ tlv_driver_gain),
SOC_DOUBLE_R("HP DAC Playback Switch", AIC32X4_HPLGAIN,
AIC32X4_HPRGAIN, 6, 0x01, 1),
SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
SOC_SINGLE("ADCFGA Left Mute Switch", AIC32X4_ADCFGA, 7, 1, 0),
SOC_SINGLE("ADCFGA Right Mute Switch", AIC32X4_ADCFGA, 3, 1, 0),
- SOC_DOUBLE_R_TLV("ADC Level Volume", AIC32X4_LADCVOL,
- AIC32X4_RADCVOL, 0, 0x28, 0, tlv_step_0_5),
+ SOC_DOUBLE_R_S_TLV("ADC Level Volume", AIC32X4_LADCVOL,
+ AIC32X4_RADCVOL, 0, -0x18, 0x28, 6, 0, tlv_adc_vol),
SOC_DOUBLE_R_TLV("PGA Level Volume", AIC32X4_LMICPGAVOL,
AIC32X4_RMICPGAVOL, 0, 0x5f, 0, tlv_step_0_5),
static int aic32x4_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
+ struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
switch (level) {
case SND_SOC_BIAS_ON:
+ /* Switch on master clock */
+ ret = clk_prepare_enable(aic32x4->mclk);
+ if (ret) {
+ dev_err(codec->dev, "Failed to enable master clock\n");
+ return ret;
+ }
+
/* Switch on PLL */
snd_soc_update_bits(codec, AIC32X4_PLLPR,
AIC32X4_PLLEN, AIC32X4_PLLEN);
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- /* Switch off PLL */
- snd_soc_update_bits(codec, AIC32X4_PLLPR,
- AIC32X4_PLLEN, 0);
+ /* Switch off BCLK_N Divider */
+ snd_soc_update_bits(codec, AIC32X4_BCLKN,
+ AIC32X4_BCLKEN, 0);
- /* Switch off NDAC Divider */
- snd_soc_update_bits(codec, AIC32X4_NDAC,
- AIC32X4_NDACEN, 0);
+ /* Switch off MADC Divider */
+ snd_soc_update_bits(codec, AIC32X4_MADC,
+ AIC32X4_MADCEN, 0);
+
+ /* Switch off NADC Divider */
+ snd_soc_update_bits(codec, AIC32X4_NADC,
+ AIC32X4_NADCEN, 0);
/* Switch off MDAC Divider */
snd_soc_update_bits(codec, AIC32X4_MDAC,
AIC32X4_MDACEN, 0);
- /* Switch off NADC Divider */
- snd_soc_update_bits(codec, AIC32X4_NADC,
- AIC32X4_NADCEN, 0);
+ /* Switch off NDAC Divider */
+ snd_soc_update_bits(codec, AIC32X4_NDAC,
+ AIC32X4_NDACEN, 0);
- /* Switch off MADC Divider */
- snd_soc_update_bits(codec, AIC32X4_MADC,
- AIC32X4_MADCEN, 0);
+ /* Switch off PLL */
+ snd_soc_update_bits(codec, AIC32X4_PLLPR,
+ AIC32X4_PLLEN, 0);
- /* Switch off BCLK_N Divider */
- snd_soc_update_bits(codec, AIC32X4_BCLKN,
- AIC32X4_BCLKEN, 0);
+ /* Switch off master clock */
+ clk_disable_unprepare(aic32x4->mclk);
break;
case SND_SOC_BIAS_OFF:
break;
struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
u32 tmp_reg;
- snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
-
- if (aic32x4->rstn_gpio >= 0) {
+ if (gpio_is_valid(aic32x4->rstn_gpio)) {
ndelay(10);
gpio_set_value(aic32x4->rstn_gpio, 1);
}
.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
};
+static int aic32x4_parse_dt(struct aic32x4_priv *aic32x4,
+ struct device_node *np)
+{
+ aic32x4->swapdacs = false;
+ aic32x4->micpga_routing = 0;
+ aic32x4->rstn_gpio = of_get_named_gpio(np, "reset-gpios", 0);
+
+ return 0;
+}
+
+static void aic32x4_disable_regulators(struct aic32x4_priv *aic32x4)
+{
+ regulator_disable(aic32x4->supply_iov);
+
+ if (!IS_ERR(aic32x4->supply_ldo))
+ regulator_disable(aic32x4->supply_ldo);
+
+ if (!IS_ERR(aic32x4->supply_dv))
+ regulator_disable(aic32x4->supply_dv);
+
+ if (!IS_ERR(aic32x4->supply_av))
+ regulator_disable(aic32x4->supply_av);
+}
+
+static int aic32x4_setup_regulators(struct device *dev,
+ struct aic32x4_priv *aic32x4)
+{
+ int ret = 0;
+
+ aic32x4->supply_ldo = devm_regulator_get_optional(dev, "ldoin");
+ aic32x4->supply_iov = devm_regulator_get(dev, "iov");
+ aic32x4->supply_dv = devm_regulator_get_optional(dev, "dv");
+ aic32x4->supply_av = devm_regulator_get_optional(dev, "av");
+
+ /* Check if the regulator requirements are fulfilled */
+
+ if (IS_ERR(aic32x4->supply_iov)) {
+ dev_err(dev, "Missing supply 'iov'\n");
+ return PTR_ERR(aic32x4->supply_iov);
+ }
+
+ if (IS_ERR(aic32x4->supply_ldo)) {
+ if (PTR_ERR(aic32x4->supply_ldo) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ if (IS_ERR(aic32x4->supply_dv)) {
+ dev_err(dev, "Missing supply 'dv' or 'ldoin'\n");
+ return PTR_ERR(aic32x4->supply_dv);
+ }
+ if (IS_ERR(aic32x4->supply_av)) {
+ dev_err(dev, "Missing supply 'av' or 'ldoin'\n");
+ return PTR_ERR(aic32x4->supply_av);
+ }
+ } else {
+ if (IS_ERR(aic32x4->supply_dv) &&
+ PTR_ERR(aic32x4->supply_dv) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ if (IS_ERR(aic32x4->supply_av) &&
+ PTR_ERR(aic32x4->supply_av) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ }
+
+ ret = regulator_enable(aic32x4->supply_iov);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator iov\n");
+ return ret;
+ }
+
+ if (!IS_ERR(aic32x4->supply_ldo)) {
+ ret = regulator_enable(aic32x4->supply_ldo);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator ldo\n");
+ goto error_ldo;
+ }
+ }
+
+ if (!IS_ERR(aic32x4->supply_dv)) {
+ ret = regulator_enable(aic32x4->supply_dv);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator dv\n");
+ goto error_dv;
+ }
+ }
+
+ if (!IS_ERR(aic32x4->supply_av)) {
+ ret = regulator_enable(aic32x4->supply_av);
+ if (ret) {
+ dev_err(dev, "Failed to enable regulator av\n");
+ goto error_av;
+ }
+ }
+
+ if (!IS_ERR(aic32x4->supply_ldo) && IS_ERR(aic32x4->supply_av))
+ aic32x4->power_cfg |= AIC32X4_PWR_AIC32X4_LDO_ENABLE;
+
+ return 0;
+
+error_av:
+ if (!IS_ERR(aic32x4->supply_dv))
+ regulator_disable(aic32x4->supply_dv);
+
+error_dv:
+ if (!IS_ERR(aic32x4->supply_ldo))
+ regulator_disable(aic32x4->supply_ldo);
+
+error_ldo:
+ regulator_disable(aic32x4->supply_iov);
+ return ret;
+}
+
static int aic32x4_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct aic32x4_pdata *pdata = i2c->dev.platform_data;
struct aic32x4_priv *aic32x4;
+ struct device_node *np = i2c->dev.of_node;
int ret;
aic32x4 = devm_kzalloc(&i2c->dev, sizeof(struct aic32x4_priv),
aic32x4->swapdacs = pdata->swapdacs;
aic32x4->micpga_routing = pdata->micpga_routing;
aic32x4->rstn_gpio = pdata->rstn_gpio;
+ } else if (np) {
+ ret = aic32x4_parse_dt(aic32x4, np);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to parse DT node\n");
+ return ret;
+ }
} else {
aic32x4->power_cfg = 0;
aic32x4->swapdacs = false;
aic32x4->rstn_gpio = -1;
}
- if (aic32x4->rstn_gpio >= 0) {
+ aic32x4->mclk = devm_clk_get(&i2c->dev, "mclk");
+ if (IS_ERR(aic32x4->mclk)) {
+ dev_err(&i2c->dev, "Failed getting the mclk. The current implementation does not support the usage of this codec without mclk\n");
+ return PTR_ERR(aic32x4->mclk);
+ }
+
+ if (gpio_is_valid(aic32x4->rstn_gpio)) {
ret = devm_gpio_request_one(&i2c->dev, aic32x4->rstn_gpio,
GPIOF_OUT_INIT_LOW, "tlv320aic32x4 rstn");
if (ret != 0)
return ret;
}
+ ret = aic32x4_setup_regulators(&i2c->dev, aic32x4);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to setup regulators\n");
+ return ret;
+ }
+
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_aic32x4, &aic32x4_dai, 1);
- return ret;
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to register codec\n");
+ aic32x4_disable_regulators(aic32x4);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, aic32x4);
+
+ return 0;
}
static int aic32x4_i2c_remove(struct i2c_client *client)
{
+ struct aic32x4_priv *aic32x4 = i2c_get_clientdata(client);
+
+ aic32x4_disable_regulators(aic32x4);
+
snd_soc_unregister_codec(&client->dev);
return 0;
}
};
MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
+static const struct of_device_id aic32x4_of_id[] = {
+ { .compatible = "ti,tlv320aic32x4", },
+ { /* senitel */ }
+};
+MODULE_DEVICE_TABLE(of, aic32x4_of_id);
+
static struct i2c_driver aic32x4_i2c_driver = {
.driver = {
.name = "tlv320aic32x4",
.owner = THIS_MODULE,
+ .of_match_table = aic32x4_of_id,
},
.probe = aic32x4_i2c_probe,
.remove = aic32x4_i2c_remove,
projects / firefly-linux-kernel-4.4.55.git / blobdiff