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add shutdown for codec power down pop noise

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陈金泉
2013-04-27 16:39:59 +08:00
parent e35e3fe4e4
commit ed86df2d12
1 changed files with 56 additions and 10 deletions
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66
sound/soc/codecs/rk616_codec.c
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@@ -425,10 +425,9 @@ static int rk616_reset(struct snd_soc_codec *codec)
int i;
snd_soc_write(codec, RK616_RESET, 0xfc);
mdelay(10);
snd_soc_write(codec, RK616_RESET, 0x43);
mdelay(10);
snd_soc_write(codec, RK616_SINGNAL_ZC_CTL1, 0x3f);
snd_soc_write(codec, RK616_SINGNAL_ZC_CTL2, 0xff);
@@ -829,6 +828,8 @@ static int rk616_dacl_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(codec, RK616_DAC_CTL,
RK616_DACL_INIT_MASK, 0);
snd_soc_update_bits(codec, RK616_DAC_CTL,
RK616_DACL_PWRD | RK616_DACL_CLK_PWRD |
RK616_DACL_INIT_MASK, 0);
@@ -860,6 +861,8 @@ static int rk616_dacr_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(codec, RK616_DAC_CTL,
RK616_DACR_INIT_MASK, 0);
snd_soc_update_bits(codec, RK616_DAC_CTL,
RK616_DACR_PWRD | RK616_DACR_CLK_PWRD |
RK616_DACR_INIT_MASK, 0);
@@ -1555,8 +1558,8 @@ static int rk616_codec_power_up(void)
snd_soc_write(codec, power_up_list[i].reg, power_up_list[i].value);
}
if (rk616_priv->spk_ctl_gpio != 0)
gpio_set_value(rk616_priv->spk_ctl_gpio, 1);
if (rk616_priv->spk_ctl_gpio != INVALID_GPIO)
gpio_set_value(rk616_priv->spk_ctl_gpio, GPIO_HIGH);
return 0;
}
@@ -1573,8 +1576,8 @@ static int rk616_codec_power_down(void)
printk("rk616_codec_power_down\n");
if (rk616_priv->spk_ctl_gpio != 0)
gpio_set_value(rk616_priv->spk_ctl_gpio, 0);
if (rk616_priv->spk_ctl_gpio != INVALID_GPIO)
gpio_set_value(rk616_priv->spk_ctl_gpio, GPIO_LOW);
rk616_reset(codec);
@@ -1689,7 +1692,6 @@ static void rk616_shutdown(struct snd_pcm_substream *substream,
}
}
}
}
#endif
@@ -1809,11 +1811,11 @@ static int rk616_probe(struct snd_soc_codec *codec)
if (rk616_mfd && rk616_mfd->pdata && rk616_mfd->pdata->spk_ctl_gpio) {
gpio_request(rk616_mfd->pdata->spk_ctl_gpio, NULL);
gpio_direction_output(rk616_mfd->pdata->spk_ctl_gpio, 0);
gpio_direction_output(rk616_mfd->pdata->spk_ctl_gpio, GPIO_LOW);
rk616->spk_ctl_gpio = rk616_mfd->pdata->spk_ctl_gpio;
} else {
printk("rk616_probe : rk616 or pdata or spk_ctl_gpio is NULL!\n");
rk616->spk_ctl_gpio = 0;
rk616->spk_ctl_gpio = INVALID_GPIO;
}
#ifdef RK616_FOR_MID
@@ -1871,7 +1873,21 @@ err__:
/* power down chip */
static int rk616_remove(struct snd_soc_codec *codec)
{
rk616_set_bias_level(codec, SND_SOC_BIAS_OFF);
DBG("%s\n", __func__);
#ifdef RK616_FOR_MID
cancel_delayed_work_sync(&delayed_work);
if (rk616_codec_work_type != RK616_CODEC_WORK_NULL) {
rk616_codec_work_type = RK616_CODEC_WORK_NULL;
rk616_codec_power_down();
}
#else
snd_soc_write(codec, RK616_RESET, 0xfc);
mdelay(10);
snd_soc_write(codec, RK616_RESET, 0x3);
mdelay(10);
#endif
if (rk616_priv)
kfree(rk616_priv);
@@ -1921,6 +1937,35 @@ static __devexit int rk616_platform_remove(struct platform_device *pdev)
return 0;
}
void rk616_platform_shutdown(struct platform_device *pdev)
{
#ifdef RK616_FOR_MID
DBG("%s\n", __func__);
cancel_delayed_work_sync(&delayed_work);
if (rk616_codec_work_type != RK616_CODEC_WORK_NULL) {
rk616_codec_work_type = RK616_CODEC_WORK_NULL;
rk616_codec_power_down();
}
#else
struct snd_soc_codec *codec = rk616_priv->codec;
if (!rk616_priv || !rk616_priv->codec) {
printk("rk616_hw_write : %s %s\n", rk616_priv ? "" : "rk616_priv is NULL",
rk616_priv->codec ? "" : "rk616_priv->codec is NULL");
return;
}
DBG("%s\n", __func__);
snd_soc_write(codec, RK616_RESET, 0xfc);
mdelay(10);
snd_soc_write(codec, RK616_RESET, 0x3);
mdelay(10);
#endif
}
static struct platform_driver rk616_codec_driver = {
.driver = {
.name = "rk616-codec",
@@ -1928,6 +1973,7 @@ static struct platform_driver rk616_codec_driver = {
},
.probe = rk616_platform_probe,
.remove = __devexit_p(rk616_platform_remove),
.shutdown = rk616_platform_shutdown,
};