MLK-17462-3: ASoC: imx-ak5558: support TDM mode
add fsl,tdm property, in tdm mode, the slot_width is fixed to 32 bit. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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55e8ac1bf4
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@ -25,6 +25,7 @@
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struct imx_ak5558_data {
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struct snd_soc_card card;
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bool tdm_mode;
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};
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static struct snd_soc_dapm_widget imx_ak5558_dapm_widgets[] = {
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@ -48,12 +49,17 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream,
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_card *card = rtd->card;
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struct device *dev = card->dev;
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struct imx_ak5558_data *data = snd_soc_card_get_drvdata(card);
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unsigned int channels = params_channels(params);
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unsigned int fmt;
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int ret;
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fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS;
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if (data->tdm_mode)
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fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS;
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else
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fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS;
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret) {
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@ -67,12 +73,30 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream,
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return ret;
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}
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ret = snd_soc_dai_set_tdm_slot(cpu_dai,
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if (data->tdm_mode) {
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ret = snd_soc_dai_set_tdm_slot(cpu_dai,
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BIT(channels) - 1, BIT(channels) - 1,
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8, 32);
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if (ret) {
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dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_tdm_slot(codec_dai,
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BIT(channels) - 1, BIT(channels) - 1,
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8, 32);
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if (ret) {
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dev_err(dev, "failed to set codec dai fmt: %d\n", ret);
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return ret;
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}
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} else {
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ret = snd_soc_dai_set_tdm_slot(cpu_dai,
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BIT(channels) - 1, BIT(channels) - 1,
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2, params_physical_width(params));
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if (ret) {
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dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
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return ret;
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if (ret) {
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dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
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return ret;
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}
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}
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return ret;
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@ -149,6 +173,9 @@ static int imx_ak5558_probe(struct platform_device *pdev)
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goto fail;
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}
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if (of_find_property(pdev->dev.of_node, "fsl,tdm", NULL))
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priv->tdm_mode = true;
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imx_ak5558_dai.codec_of_node = codec_np;
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imx_ak5558_dai.cpu_dai_name = dev_name(&cpu_pdev->dev);
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imx_ak5558_dai.platform_of_node = cpu_np;
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