static int twl6040_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct twl6040_codec *twl6040 = codec->control_data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered)
break;
twl6040_enable(twl6040);
priv->codec_powered = 1;
/* initialize vdd/vss registers with reg_cache */
twl6040_init_vdd_regs(codec);
break;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break;
twl6040_disable(twl6040);
priv->codec_powered = 0;
break;
}
priv->pll = twl6040_get_pll(twl6040);
priv->sysclk = twl6040_get_sysclk(twl6040);
codec->dapm->bias_level = level;
return 0;
}
static int twl6040_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int audpwron = priv->audpwron;
int naudint = priv->naudint;
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered)
break;
if (gpio_is_valid(audpwron)) {
/* use AUDPWRON line */
gpio_set_value(audpwron, 1);
/* wait for power-up completion */
ret = twl6040_power_up_completion(codec, naudint);
if (ret)
return ret;
/* sync registers updated during power-up sequence */
twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
} else {
/* use manual power-up sequence */
twl6040_power_up(codec);
priv->codec_powered = 1;
}
/* initialize vdd/vss registers with reg_cache */
twl6040_init_vdd_regs(codec);
break;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break;
if (gpio_is_valid(audpwron)) {
/* use AUDPWRON line */
gpio_set_value(audpwron, 0);
/* power-down sequence latency */
udelay(500);
/* sync registers updated during power-down sequence */
twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
0x00);
} else {
/* use manual power-down sequence */
twl6040_power_down(codec);
}
priv->codec_powered = 0;
break;
}
codec->bias_level = level;
return 0;
}
static int twl6040_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int audpwron = priv->audpwron;
int naudint = priv->naudint;
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered)
break;
if (gpio_is_valid(audpwron)) {
/* use AUDPWRON line */
gpio_set_value(audpwron, 1);
#if defined(CONFIG_MACH_LGE_COSMO_REV_C)
mdelay(50);
#endif
/* wait for power-up completion */
ret = twl6040_power_up_completion(codec, naudint);
if (ret)
return ret;
/* sync registers updated during power-up sequence */
twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
} else {
/* use manual power-up sequence */
twl6040_power_up(codec);
priv->codec_powered = 1;
}
/* initialize vdd/vss registers with reg_cache */
twl6040_init_vdd_regs(codec);
break;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break;
if (gpio_is_valid(audpwron)) {
// Headset Left Driver make pop-noise when twl6040 enter into sleep mode.
u8 val;
val = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
if( val & 0x04 ) // temp disableed. It will be recovered when power-on.
{
twl6040_i2c_write(TWL6040_REG_HSLCTL, (val & (~0x04)));
msleep(1); // delay;;
}
/* use AUDPWRON line */
gpio_set_value(audpwron, 0);
/* power-down sequence latency */
mdelay(1); // more more...
/* sync registers updated during power-down sequence */
twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
0x00);
} else {
/* use manual power-down sequence */
twl6040_power_down(codec);
}
priv->codec_powered = 0;
break;
}
codec->dapm->bias_level = level;
return 0;
}
