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path: root/sound/soc/codecs/tlv320aic3x.c
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Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.c')
-rw-r--r--sound/soc/codecs/tlv320aic3x.c30
1 files changed, 26 insertions, 4 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 8739126a1..a56475984 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -80,6 +80,7 @@ struct aic3x_priv {
unsigned int sysclk;
unsigned int dai_fmt;
unsigned int tdm_delay;
+ unsigned int slot_width;
struct list_head list;
int master;
int gpio_reset;
@@ -1025,10 +1026,14 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream,
u8 data, j, r, p, pll_q, pll_p = 1, pll_r = 1, pll_j = 1;
u16 d, pll_d = 1;
int clk;
+ int width = aic3x->slot_width;
+
+ if (!width)
+ width = params_width(params);
/* select data word length */
data = snd_soc_read(codec, AIC3X_ASD_INTF_CTRLB) & (~(0x3 << 4));
- switch (params_width(params)) {
+ switch (width) {
case 16:
break;
case 20:
@@ -1170,12 +1175,16 @@ static int aic3x_prepare(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
int delay = 0;
+ int width = aic3x->slot_width;
+
+ if (!width)
+ width = substream->runtime->sample_bits;
/* TDM slot selection only valid in DSP_A/_B mode */
if (aic3x->dai_fmt == SND_SOC_DAIFMT_DSP_A)
- delay += (aic3x->tdm_delay + 1);
+ delay += (aic3x->tdm_delay*width + 1);
else if (aic3x->dai_fmt == SND_SOC_DAIFMT_DSP_B)
- delay += aic3x->tdm_delay;
+ delay += aic3x->tdm_delay*width;
/* Configure data delay */
snd_soc_write(codec, AIC3X_ASD_INTF_CTRLC, delay);
@@ -1296,7 +1305,20 @@ static int aic3x_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- aic3x->tdm_delay = lsb * slot_width;
+ switch (slot_width) {
+ case 16:
+ case 20:
+ case 24:
+ case 32:
+ break;
+ default:
+ dev_err(codec->dev, "Unsupported slot width %d\n", slot_width);
+ return -EINVAL;
+ }
+
+
+ aic3x->tdm_delay = lsb;
+ aic3x->slot_width = slot_width;
/* DOUT in high-impedance on inactive bit clocks */
snd_soc_update_bits(codec, AIC3X_ASD_INTF_CTRLA,