summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/rt5514.c
diff options
context:
space:
mode:
authoroder_chiou@realtek.com <oder_chiou@realtek.com>2017-07-20 07:05:34 +0300
committerMark Brown <broonie@kernel.org>2017-07-20 15:09:11 +0300
commite8be3a5ad335316ddf1b90e0386426093187bfc7 (patch)
tree2ca144711ab42747b0704587167e11564c73a287 /sound/soc/codecs/rt5514.c
parent9894dbafb6f864207f9e6aeaca2c8de949955651 (diff)
downloadlinux-e8be3a5ad335316ddf1b90e0386426093187bfc7.tar.xz
ASoC: rt5514: Support the TDM docking mode
The TDM docking mode can share the bus to other devices simultaneously. Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5514.c')
-rw-r--r--sound/soc/codecs/rt5514.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index 4ca73bf83cc1..a105c84ef555 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -871,11 +871,38 @@ static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
{
struct snd_soc_codec *codec = dai->codec;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
- unsigned int val = 0;
+ unsigned int val = 0, val2 = 0;
if (rx_mask || tx_mask)
val |= RT5514_TDM_MODE;
+ switch (tx_mask) {
+ case 0x3:
+ val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH2 |
+ RT5514_TDM_DOCKING_START_SLOT0;
+ break;
+
+ case 0x30:
+ val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH2 |
+ RT5514_TDM_DOCKING_START_SLOT4;
+ break;
+
+ case 0xf:
+ val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH4 |
+ RT5514_TDM_DOCKING_START_SLOT0;
+ break;
+
+ case 0xf0:
+ val2 |= RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH4 |
+ RT5514_TDM_DOCKING_START_SLOT4;
+ break;
+
+ default:
+ break;
+ }
+
+
+
switch (slots) {
case 4:
val |= RT5514_TDMSLOT_SEL_RX_4CH | RT5514_TDMSLOT_SEL_TX_4CH;
@@ -921,6 +948,10 @@ static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
RT5514_CH_LEN_RX_MASK | RT5514_CH_LEN_TX_MASK |
RT5514_TDM_MODE2, val);
+ regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL2,
+ RT5514_TDM_DOCKING_MODE | RT5514_TDM_DOCKING_VALID_CH_MASK |
+ RT5514_TDM_DOCKING_START_MASK, val2);
+
return 0;
}