diff options
| author |  oder_chiou@realtek.com <oder_chiou@realtek.com>
| 2017-07-20 12:05:34 +0800 |
|---|---|---|
| committer |  Mark Brown <broonie@kernel.org>
| 2017-07-20 13:09:11 +0100 |
| commit | e8be3a5ad335316ddf1b90e0386426093187bfc7 (patch) | |
| tree | 2ca144711ab42747b0704587167e11564c73a287 /sound/soc/codecs/rt5514.c | |
| parent | ASoC: rt5514: constify snd_soc_dai_ops structure (diff) | |
| download | linux-e8be3a5ad335316ddf1b90e0386426093187bfc7.tar.gz linux-e8be3a5ad335316ddf1b90e0386426093187bfc7.tar.bz2 linux-e8be3a5ad335316ddf1b90e0386426093187bfc7.zip | |
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.c | 33 |
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; } |