TDM is necessary for more than 2 channels. And there is no control bit to specify which slots are using. Machine driver will not need to call snd_soc_dai_set_tdm_slot if we do it in rt5665_hw_params.
Signed-off-by: Bard Liao bardliao@realtek.com --- sound/soc/codecs/rt5665.c | 114 ++++++++++++++++++++++++---------------------- 1 file changed, 59 insertions(+), 55 deletions(-)
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c index 52148fc..25acdb36 100644 --- a/sound/soc/codecs/rt5665.c +++ b/sound/soc/codecs/rt5665.c @@ -3967,6 +3967,62 @@ static const struct snd_soc_dapm_route rt5665_dapm_routes[] = { {"PDMR", NULL, "PDM R Playback"}, };
+static int rt5665_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct snd_soc_codec *codec = dai->codec; + unsigned int val = 0; + + if (rx_mask || tx_mask) + val |= RT5665_I2S1_MODE_TDM; + + switch (slots) { + case 4: + val |= RT5665_TDM_IN_CH_4; + val |= RT5665_TDM_OUT_CH_4; + break; + case 6: + val |= RT5665_TDM_IN_CH_6; + val |= RT5665_TDM_OUT_CH_6; + break; + case 8: + val |= RT5665_TDM_IN_CH_8; + val |= RT5665_TDM_OUT_CH_8; + break; + case 2: + break; + default: + return -EINVAL; + } + + switch (slot_width) { + case 20: + val |= RT5665_TDM_IN_LEN_20; + val |= RT5665_TDM_OUT_LEN_20; + break; + case 24: + val |= RT5665_TDM_IN_LEN_24; + val |= RT5665_TDM_OUT_LEN_24; + break; + case 32: + val |= RT5665_TDM_IN_LEN_32; + val |= RT5665_TDM_OUT_LEN_32; + break; + case 16: + break; + default: + return -EINVAL; + } + + snd_soc_update_bits(codec, RT5665_TDM_CTRL_1, + RT5665_I2S1_MODE_MASK | RT5665_TDM_IN_CH_MASK | + RT5665_TDM_OUT_CH_MASK | RT5665_TDM_IN_LEN_MASK | + RT5665_TDM_OUT_LEN_MASK, val); + + return 0; +} + + static int rt5665_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -4013,6 +4069,9 @@ static int rt5665_hw_params(struct snd_pcm_substream *substream, switch (dai->id) { case RT5665_AIF1_1: case RT5665_AIF1_2: + if (params_channels(params) > 2) + rt5665_set_tdm_slot(dai, 0xf, 0xf, + params_channels(params), params_width(params)); mask_clk = RT5665_I2S_PD1_MASK; val_clk = pre_div << RT5665_I2S_PD1_SFT; snd_soc_update_bits(codec, RT5665_I2S1_SDP, @@ -4229,61 +4288,6 @@ static int rt5665_set_codec_pll(struct snd_soc_codec *codec, int pll_id, return 0; }
-static int rt5665_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, - unsigned int rx_mask, int slots, int slot_width) -{ - struct snd_soc_codec *codec = dai->codec; - unsigned int val = 0; - - if (rx_mask || tx_mask) - val |= RT5665_I2S1_MODE_TDM; - - switch (slots) { - case 4: - val |= RT5665_TDM_IN_CH_4; - val |= RT5665_TDM_OUT_CH_4; - break; - case 6: - val |= RT5665_TDM_IN_CH_6; - val |= RT5665_TDM_OUT_CH_6; - break; - case 8: - val |= RT5665_TDM_IN_CH_8; - val |= RT5665_TDM_OUT_CH_8; - break; - case 2: - break; - default: - return -EINVAL; - } - - switch (slot_width) { - case 20: - val |= RT5665_TDM_IN_LEN_20; - val |= RT5665_TDM_OUT_LEN_20; - break; - case 24: - val |= RT5665_TDM_IN_LEN_24; - val |= RT5665_TDM_OUT_LEN_24; - break; - case 32: - val |= RT5665_TDM_IN_LEN_32; - val |= RT5665_TDM_OUT_LEN_32; - break; - case 16: - break; - default: - return -EINVAL; - } - - snd_soc_update_bits(codec, RT5665_TDM_CTRL_1, - RT5665_I2S1_MODE_MASK | RT5665_TDM_IN_CH_MASK | - RT5665_TDM_OUT_CH_MASK | RT5665_TDM_IN_LEN_MASK | - RT5665_TDM_OUT_LEN_MASK, val); - - return 0; -} - static int rt5665_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) { struct snd_soc_codec *codec = dai->codec;