From: Oder Chiou <oder_chiou@realtek.com>
To: broonie@kernel.org, lgirdwood@gmail.com
Cc: Oder Chiou <oder_chiou@realtek.com>,
jack.yu@realtek.com, alsa-devel@alsa-project.org,
hychao@google.com, harshapriya.n@intel.com,
albertchen@realtek.com, shumingf@realtek.com,
bardliao@realtek.com, flove@realtek.com
Subject: [PATCH v2] ASoC: rt5514: Support the TDM docking mode
Date: Thu, 20 Jul 2017 12:05:34 +0800 [thread overview]
Message-ID: <1500523534-3756-1-git-send-email-oder_chiou@realtek.com> (raw)
The TDM docking 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
--
2.7.4
reply other threads:[~2017-07-20 4:05 UTC|newest]
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