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; }