The TDM ducking mode can share the bus to other devices simultaneously.
Signed-off-by: Oder Chiou oder_chiou@realtek.com --- sound/soc/codecs/rt5514.c | 33 ++++++++++++++++++++++++++++++++- sound/soc/codecs/rt5514.h | 12 ++++++++++++ 2 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c index 4ca73bf..a105c84 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; }
diff --git a/sound/soc/codecs/rt5514.h b/sound/soc/codecs/rt5514.h index 02bc212..75024a4 100644 --- a/sound/soc/codecs/rt5514.h +++ b/sound/soc/codecs/rt5514.h @@ -164,6 +164,18 @@ #define RT5514_I2S_DL_24 (0x2 << 0) #define RT5514_I2S_DL_8 (0x3 << 0)
+/* RT5514_I2S_CTRL2 (0x2014) */ +#define RT5514_TDM_DOCKING_MODE (0x1 << 31) +#define RT5514_TDM_DOCKING_MODE_SFT 31 +#define RT5514_TDM_DOCKING_VALID_CH_MASK (0x1 << 29) +#define RT5514_TDM_DOCKING_VALID_CH_SFT 29 +#define RT5514_TDM_DOCKING_VALID_CH2 (0x0 << 29) +#define RT5514_TDM_DOCKING_VALID_CH4 (0x1 << 29) +#define RT5514_TDM_DOCKING_START_MASK (0x1 << 28) +#define RT5514_TDM_DOCKING_START_SFT 28 +#define RT5514_TDM_DOCKING_START_SLOT0 (0x0 << 28) +#define RT5514_TDM_DOCKING_START_SLOT4 (0x1 << 28) + /* RT5514_DIG_SOURCE_CTRL (0x20a4) */ #define RT5514_AD1_DMIC_INPUT_SEL (0x1 << 1) #define RT5514_AD1_DMIC_INPUT_SEL_SFT 1