[PATCH 2/2] ASoC: tlv320adcx140: Add tx offset slot programming

[Dan Murphy]

Add the TX offset slot programming.  There is no RX offset slot
register.

Since there is no RX offset the check for slot symmetry can be removed.

Signed-off-by: Dan Murphy <dmurphy at ti.com>
---
 sound/soc/codecs/tlv320adcx140.c | 40 ++++++++------------------------
 1 file changed, 10 insertions(+), 30 deletions(-)

diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c
index f884abdb576e..d900af967f8c 100644
--- a/sound/soc/codecs/tlv320adcx140.c
+++ b/sound/soc/codecs/tlv320adcx140.c
@@ -646,6 +646,8 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
 	u8 iface_reg1 = 0;
 	u8 iface_reg2 = 0;
+	int offset = 0;
+	int width = adcx140->slot_width;
 
 	/* set master/slave audio interface */
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -688,7 +690,10 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
 		iface_reg1 |= ADCX140_LEFT_JUST_BIT;
 		break;
 	case SND_SOC_DAIFMT_DSP_A:
+		offset += (adcx140->tdm_delay * width + 1);
+		break;
 	case SND_SOC_DAIFMT_DSP_B:
+		offset += adcx140->tdm_delay * width;
 		break;
 	default:
 		dev_err(component->dev, "Invalid DAI interface format\n");
@@ -705,6 +710,11 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	snd_soc_component_update_bits(component, ADCX140_MST_CFG0,
 				      ADCX140_BCLK_FSYNC_MASTER, iface_reg2);
 
+	/* Configure data offset */
+	snd_soc_component_update_bits(component, ADCX140_ASI_CFG1,
+				      ADCX140_TX_OFFSET_MASK, offset);
+
+
 	return 0;
 }
 
@@ -716,11 +726,6 @@ static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
 	struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
 	unsigned int lsb;
 
-	if (tx_mask != rx_mask) {
-		dev_err(component->dev, "tx and rx masks must be symmetric\n");
-		return -EINVAL;
-	}
-
 	/* TDM based on DSP mode requires slots to be adjacent */
 	lsb = __ffs(tx_mask);
 	if ((lsb + 1) != __fls(tx_mask)) {
@@ -745,34 +750,9 @@ static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
-static int adcx140_prepare(struct snd_pcm_substream *substream,
-			 struct snd_soc_dai *dai)
-{
-	struct snd_soc_component *component = dai->component;
-	struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
-	int offset = 0;
-	int width = adcx140->slot_width;
-
-	if (!width)
-		width = substream->runtime->sample_bits;
-
-	/* TDM slot selection only valid in DSP_A/_B mode */
-	if (adcx140->dai_fmt == SND_SOC_DAIFMT_DSP_A)
-		offset += (adcx140->tdm_delay * width + 1);
-	else if (adcx140->dai_fmt == SND_SOC_DAIFMT_DSP_B)
-		offset += adcx140->tdm_delay * width;
-
-	/* Configure data offset */
-	snd_soc_component_update_bits(component, ADCX140_ASI_CFG1,
-				      ADCX140_TX_OFFSET_MASK, offset);
-
-	return 0;
-}
-
 static const struct snd_soc_dai_ops adcx140_dai_ops = {
 	.hw_params	= adcx140_hw_params,
 	.set_fmt	= adcx140_set_dai_fmt,
-	.prepare	= adcx140_prepare,
 	.set_tdm_slot	= adcx140_set_dai_tdm_slot,
 };
 
-- 
2.27.0