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* [PATCH 1/2] ASoC: rt298: reset AD dilter is there is no MCLK
@ 2016-04-26 10:07 Bard Liao
  2016-04-26 10:07 ` [PATCH 2/2] ASoC: rt298: fix capture doesn't work at some cases Bard Liao
  2016-04-26 10:26 ` Applied "ASoC: rt298: reset AD dilter is there is no MCLK" " Mark Brown
  0 siblings, 2 replies; 4+ messages in thread
From: Bard Liao @ 2016-04-26 10:07 UTC (permalink / raw)
  To: broonie, lgirdwood
  Cc: oder_chiou, alsa-devel, lars, john.lin, ramesh.babu, Bard Liao,
	senthilnathanx.veppur, flove

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

Signed-off-by: Bard Liao <bardliao@realtek.com>
---
 sound/soc/codecs/rt298.c | 20 ++++++++++++++++++++
 sound/soc/codecs/rt298.h |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c
index f0e6c06..178b1cc 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 d66f884..3638f3d 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
-- 
1.8.1.1.439.g50a6b54

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2016-04-26 10:26 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-04-26 10:07 [PATCH 1/2] ASoC: rt298: reset AD dilter is there is no MCLK Bard Liao
2016-04-26 10:07 ` [PATCH 2/2] ASoC: rt298: fix capture doesn't work at some cases Bard Liao
2016-04-26 10:26   ` Applied "ASoC: rt298: fix capture doesn't work at some cases" to the asoc tree Mark Brown
2016-04-26 10:26 ` Applied "ASoC: rt298: reset AD dilter is there is no MCLK" " Mark Brown

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