ALSA: ASoC: tlv320aic3x add dsp_a

Add SND_SOC_DAIFMT_DSP_A mode option.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/tlv320aic3x.c

@@ -891,6 +891,7 @@ static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct aic3x_priv *aic3x = codec->private_data;
 	u8 iface_areg, iface_breg;
+	int delay = 0;
 
 	iface_areg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLA) & 0x3f;
 	iface_breg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & 0x3f;
@@ -916,6 +917,8 @@ static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 		       SND_SOC_DAIFMT_INV_MASK)) {
 	case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF):
 		break;
+	case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF):
+		delay = 1;
 	case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF):
 		iface_breg |= (0x01 << 6);
 		break;
@@ -932,6 +935,7 @@ static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	/* set iface */
 	aic3x_write(codec, AIC3X_ASD_INTF_CTRLA, iface_areg);
 	aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, iface_breg);
+	aic3x_write(codec, AIC3X_ASD_INTF_CTRLC, delay);
 
 	return 0;
 }

sound/soc/codecs/tlv320aic3x.h

@@ -35,6 +35,8 @@
 #define AIC3X_ASD_INTF_CTRLA		8
 /* Audio serial data interface control register B */
 #define AIC3X_ASD_INTF_CTRLB		9
+/* Audio serial data interface control register C */
+#define AIC3X_ASD_INTF_CTRLC		10
 /* Audio overflow status and PLL R value programming register */
 #define AIC3X_OVRF_STATUS_AND_PLLR_REG	11
 /* Audio codec digital filter control register */