Commit e8be3a5a authored by oder_chiou@realtek.com's avatar oder_chiou@realtek.com Committed by Mark Brown
Browse files

ASoC: rt5514: Support the TDM docking mode 



The TDM docking mode can share the bus to other devices simultaneously.

Signed-off-by: default avatarOder Chiou <oder_chiou@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9894dbaf

sound/soc/codecs/rt5514.c

+32 −1
Original line number Diff line number Diff line
@@ -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;

}

sound/soc/codecs/rt5514.h

+12 −0
Original line number Diff line number Diff line
@@ -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