ACP3x I2S (CPU DAI) can act in normal I2S and TDM modes. Added support for TDM mode. Desired mode can be selected from ASoC machine driver.

Signed-off-by: Ravulapati Vishnu vardhan rao Vishnuvardhanrao.Ravulapati@amd.com --- sound/soc/amd/raven/acp3x-i2s.c | 42 +++++++++++++++++++++++++++++++---------- sound/soc/amd/raven/acp3x.h | 2 ++ 2 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c index b039dac..d7aa345 100644 --- a/sound/soc/amd/raven/acp3x-i2s.c +++ b/sound/soc/amd/raven/acp3x-i2s.c @@ -44,8 +44,8 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, u32 rx_mask, int slots, int slot_width) { struct i2s_dev_data *adata; - u32 val; u16 slot_len; + u32 val, flen, reg_val, frmt_reg;

adata = snd_soc_dai_get_drvdata(cpu_dai);

@@ -68,16 +68,38 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, return -EINVAL; }

- val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER); - rv_writel(val | 0x2, adata->acp3x_base + mmACP_BTTDM_ITER); - val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER); - rv_writel(val | 0x2, adata->acp3x_base + mmACP_BTTDM_IRER); - - val = FRM_LEN | (slots << 15) | (slot_len << 18); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT); + /* Enable I2S / BT channels TDM and respective + * I2S/BT`s TX/RX Formats frame lengths. + */ + flen = FRM_LEN | (slots << 15) | (slot_len << 18);

- adata->tdm_fmt = val; + if (adata->substream_type == SNDRV_PCM_STREAM_PLAYBACK) { + switch (adata->i2s_instance) { + case I2S_BT_INSTANCE: + reg_val = mmACP_BTTDM_ITER; + frmt_reg = mmACP_BTTDM_TXFRMT; + break; + case I2S_SP_INSTANCE: + default: + reg_val = mmACP_I2STDM_ITER; + frmt_reg = mmACP_I2STDM_TXFRMT; + } + } else { + switch (adata->i2s_instance) { + case I2S_BT_INSTANCE: + reg_val = mmACP_BTTDM_IRER; + frmt_reg = mmACP_BTTDM_RXFRMT; + break; + case I2S_SP_INSTANCE: + default: + reg_val = mmACP_I2STDM_IRER; + frmt_reg = mmACP_I2STDM_RXFRMT; + } + } + val = rv_readl(adata->acp3x_base + reg_val); + rv_writel(val | 0x2, adata->acp3x_base + reg_val); + rv_writel(flen, adata->acp3x_base + frmt_reg); + adata->tdm_fmt = flen; return 0; }

diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index c071477..01b283a 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -76,6 +76,8 @@ struct i2s_dev_data { bool tdm_mode; unsigned int i2s_irq; u32 tdm_fmt; + u16 i2s_instance; + u32 substream_type; void __iomem *acp3x_base; struct snd_pcm_substream *play_stream; struct snd_pcm_substream *capture_stream;