diff options
| author | Bard Liao <bardliao@realtek.com> | 2016-04-26 12:07:10 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-04-26 12:11:08 +0200 |
| commit | 3c9e014c442caefa14c71494ca4473121007f60f (patch) | |
| tree | f35b47dfb9c3aeeb14afbed3fe14005b7dbe7e49 /sound | |
| parent | Linux 4.6-rc1 (diff) | |
| download | linux-3c9e014c442caefa14c71494ca4473121007f60f.tar.xz linux-3c9e014c442caefa14c71494ca4473121007f60f.zip | |
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>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/rt298.c | 20 | ||||
| -rw-r--r-- | sound/soc/codecs/rt298.h | 2 |
2 files changed, 22 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c index f0e6c06e89ac..178b1cc22e05 100644 --- a/sound/soc/codecs/rt298.c +++ b/sound/soc/codecs/rt298.c @@ -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, diff --git a/sound/soc/codecs/rt298.h b/sound/soc/codecs/rt298.h index d66f8847b676..3638f3d61209 100644 --- a/sound/soc/codecs/rt298.h +++ b/sound/soc/codecs/rt298.h @@ -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 |