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Commit 3c9e014c authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
Browse files

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: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f55532a0

sound/soc/codecs/rt298.c

+20 −0
Original line number Diff line number Diff line
@@ -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,

sound/soc/codecs/rt298.h

+2 −0
Original line number Diff line number Diff line
@@ -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