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ASoC: rt298: reset AD dilter is there is no MCLK 

rt298 need to reset AD filter and the ADC settings will take effort.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Bard Liao 2016-04-26 18:07:10 +08:00 committed by Mark Brown
parent f55532a0c0
commit 3c9e014c44
2 changed files with 22 additions and 0 deletions
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20
sound/soc/codecs/rt298.c
View File

@ -481,6 +481,26 @@ static int rt298_adc_event(struct snd_soc_dapm_widget *w,
snd_soc_update_bits(codec,
VERB_CMD(AC_VERB_SET_AMP_GAIN_MUTE, nid, 0),
0x7080, 0x7000);
/* If MCLK doesn't exist, reset AD filter */
if (!(snd_soc_read(codec, RT298_VAD_CTRL) & 0x200)) {
pr_info("NO MCLK\n");
switch (nid) {
case RT298_ADC_IN1:
snd_soc_update_bits(codec,
RT298_D_FILTER_CTRL, 0x2, 0x2);
mdelay(10);
snd_soc_update_bits(codec,
RT298_D_FILTER_CTRL, 0x2, 0x0);
break;
case RT298_ADC_IN2:
snd_soc_update_bits(codec,
RT298_D_FILTER_CTRL, 0x4, 0x4);
mdelay(10);
snd_soc_update_bits(codec,
RT298_D_FILTER_CTRL, 0x4, 0x0);
break;
}
}
break;
case SND_SOC_DAPM_PRE_PMD:
snd_soc_update_bits(codec,

2
sound/soc/codecs/rt298.h
View File

@ -137,6 +137,7 @@
#define RT298_A_BIAS_CTRL2 0x02
#define RT298_POWER_CTRL1 0x03
#define RT298_A_BIAS_CTRL3 0x04
#define RT298_D_FILTER_CTRL 0x05
#define RT298_POWER_CTRL2 0x08
#define RT298_I2S_CTRL1 0x09
#define RT298_I2S_CTRL2 0x0a
@ -148,6 +149,7 @@
#define RT298_IRQ_CTRL 0x33
#define RT298_WIND_FILTER_CTRL 0x46
#define RT298_PLL_CTRL1 0x49
#define RT298_VAD_CTRL 0x4e
#define RT298_CBJ_CTRL1 0x4f
#define RT298_CBJ_CTRL2 0x50
#define RT298_PLL_CTRL 0x63