Esempio n. 1
0
static int tegra20_das_probe(struct platform_device *pdev)
{
	struct resource *res, *region;
	void __iomem *regs;
	int ret = 0;

	if (das)
		return -ENODEV;

	das = devm_kzalloc(&pdev->dev, sizeof(struct tegra20_das), GFP_KERNEL);
	if (!das) {
		dev_err(&pdev->dev, "Can't allocate tegra20_das\n");
		ret = -ENOMEM;
		goto err;
	}
	das->dev = &pdev->dev;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(&pdev->dev, "No memory resource\n");
		ret = -ENODEV;
		goto err;
	}

	region = devm_request_mem_region(&pdev->dev, res->start,
					 resource_size(res), pdev->name);
	if (!region) {
		dev_err(&pdev->dev, "Memory region already claimed\n");
		ret = -EBUSY;
		goto err;
	}

	regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
	if (!regs) {
		dev_err(&pdev->dev, "ioremap failed\n");
		ret = -ENOMEM;
		goto err;
	}

	das->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
					    &tegra20_das_regmap_config);
	if (IS_ERR(das->regmap)) {
		dev_err(&pdev->dev, "regmap init failed\n");
		ret = PTR_ERR(das->regmap);
		goto err;
	}

	ret = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1,
					     TEGRA20_DAS_DAP_SEL_DAC1);
	if (ret) {
		dev_err(&pdev->dev, "Can't set up DAS DAP connection\n");
		goto err;
	}
	ret = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAC_ID_1,
					     TEGRA20_DAS_DAC_SEL_DAP1);
	if (ret) {
		dev_err(&pdev->dev, "Can't set up DAS DAC connection\n");
		goto err;
	}

	platform_set_drvdata(pdev, das);

	return 0;

err:
	das = NULL;
	return ret;
}
static int tegra_aic326x_bt_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct tegra_aic326x *machine = snd_soc_card_get_drvdata(card);
	int err, srate, mclk, min_mclk, sample_size;

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		sample_size = 16;
		break;
	default:
		return -EINVAL;
	}

	srate = params_rate(params);

	mclk = tegra_aic326x_get_mclk(srate);
	if (mclk < 0)
		return mclk;

	min_mclk = 64 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % min_mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	err = snd_soc_dai_set_fmt(rtd->cpu_dai,
			SND_SOC_DAIFMT_DSP_A |
			SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS);

	if (err < 0) {
		dev_err(rtd->codec->card->dev, "cpu_dai fmt not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC2,
					TEGRA20_DAS_DAP_ID_4);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_4,
					TEGRA20_DAS_DAP_SEL_DAC2);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif

	return 0;
}
Esempio n. 3
0
static int tegra_bt_sco_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_asoc_platform_data *pdata = machine->pdata;
	int srate, mclk, min_mclk, i2s_daifmt;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	case 8000:
	case 16000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	default:
		return -EINVAL;
	}
	min_mclk = 64 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % min_mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
	i2s_daifmt |= pdata->i2s_param[BT_SCO].is_i2s_master ?
			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;

	switch (pdata->i2s_param[BT_SCO].i2s_mode) {
		case TEGRA_DAIFMT_I2S :
			i2s_daifmt |= SND_SOC_DAIFMT_I2S;
			break;
		case TEGRA_DAIFMT_DSP_A :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
			break;
		case TEGRA_DAIFMT_DSP_B :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
			break;
		case TEGRA_DAIFMT_LEFT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
			break;
		case TEGRA_DAIFMT_RIGHT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
			break;
		default :
			dev_err(card->dev, "Can't configure i2s format\n");
			return -EINVAL;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC2,
					TEGRA20_DAS_DAP_ID_4);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_4,
					TEGRA20_DAS_DAP_SEL_DAC2);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif
	return 0;
}
Esempio n. 4
0
static int tegra_wm8753_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_asoc_platform_data *pdata = machine->pdata;
	int srate, mclk, i2s_daifmt;
	int err, rate;

	srate = params_rate(params);
	switch (srate) {
	case 8000:
	case 16000:
	case 24000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	default:
		mclk = 12000000;
		break;
	}

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	rate = clk_get_rate(machine->util_data.clk_cdev1);

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
	i2s_daifmt |= pdata->i2s_param[HIFI_CODEC].is_i2s_master ?
			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;

	/* Use DSP mode for mono on Tegra20 */
	if ((params_channels(params) != 2) && machine_is_whistler()) {
		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
	} else {
		switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
			case TEGRA_DAIFMT_I2S :
				i2s_daifmt |= SND_SOC_DAIFMT_I2S;
				break;
			case TEGRA_DAIFMT_DSP_A :
				i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
				break;
			case TEGRA_DAIFMT_DSP_B :
				i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
				break;
			case TEGRA_DAIFMT_LEFT_J :
				i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
				break;
			case TEGRA_DAIFMT_RIGHT_J :
				i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
				break;
			default :
				dev_err(card->dev,
				"Can't configure i2s format\n");
				return -EINVAL;
		}
	}

	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_sysclk(codec_dai, 0, rate, SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC1,
					TEGRA20_DAS_DAP_ID_1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dap-dac path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1,
					TEGRA20_DAS_DAP_SEL_DAC1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif
	return 0;
}
static int tegra_bt_sco_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_card *card = rtd->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk, min_mclk;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	case 8000:
	case 16000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	default:
		return -EINVAL;
	}
	min_mclk = 64 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % min_mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	err = snd_soc_dai_set_fmt(cpu_dai,
					SND_SOC_DAIFMT_DSP_A |
					SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC2,
					TEGRA20_DAS_DAP_ID_4);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_4,
					TEGRA20_DAS_DAP_SEL_DAC2);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif
	return 0;
}
static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk, i2s_daifmt;
	int err;
	struct clk *clk_m;
	int rate;

	srate = params_rate(params);
	switch (srate) {
	case 64000:
	case 88200:
	case 96000:
		mclk = 128 * srate;
		break;
	default:
		mclk = 256 * srate;
		break;
	}



	clk_m = clk_get_sys(NULL, "clk_m");
	if (IS_ERR(clk_m)) {
		dev_err(card->dev, "Can't retrieve clk clk_m\n");
		err = PTR_ERR(clk_m);
		return err;
	}
	rate = clk_get_rate(clk_m);
	printk("extern1 rate=%d\n",rate);

#if TEGRA30_I2S_MASTER_PLAYBACK
	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	while (mclk < 6000000)
		mclk *= 2;

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
		     SND_SOC_DAIFMT_CBS_CFS;
#else
	mclk = rate;

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
		     SND_SOC_DAIFMT_CBM_CFM;
#endif


	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	/* Use DSP mode for mono on Tegra20 */
	if ((params_channels(params) != 2) &&
	    (machine_is_ventana() || machine_is_harmony() ||
	    machine_is_kaen() || machine_is_aebl()))
		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
	else
		i2s_daifmt |= SND_SOC_DAIFMT_I2S;

	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
					SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC1,
					TEGRA20_DAS_DAP_ID_1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dap-dac path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1,
					TEGRA20_DAS_DAP_SEL_DAC1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif

#if defined(CONFIG_ARCH_ACER_T20)
	acer_volume_setting(codec, substream);
#endif
	return 0;
}
static int tegra_aic326x_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_aic326x *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk, sample_size, daifmt;
	int err;
#ifndef CONFIG_ARCH_TEGRA_2x_SOC
	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(cpu_dai);
#endif

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		sample_size = 16;
		break;
	default:
		return -EINVAL;
	}

	srate = params_rate(params);

	mclk = tegra_aic326x_get_mclk(srate);
	if (mclk < 0)
		return mclk;

	daifmt = SND_SOC_DAIFMT_I2S |
			SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	err = snd_soc_dai_set_fmt(codec_dai, daifmt);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
					SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC1,
					TEGRA20_DAS_DAP_ID_1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dap-dac path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1,
					TEGRA20_DAS_DAP_SEL_DAC1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#else /*assumes tegra3*/
	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK  && i2s->is_dam_used)
		tegra_aic326x_set_dam_cif(i2s->dam_ifc, srate,
			params_channels(params), sample_size, 0, 0, 0, 0);
#endif

	return 0;
}
static int tegra_aic326x_bt_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct tegra_aic326x *machine = snd_soc_card_get_drvdata(card);
	struct tegra_asoc_platform_data *pdata = machine->pdata;
	int err, srate, mclk, min_mclk, sample_size, i2s_daifmt;
#ifndef CONFIG_ARCH_TEGRA_2x_SOC
	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(rtd->cpu_dai);
#endif

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		sample_size = 16;
		break;
	default:
		return -EINVAL;
	}

	srate = params_rate(params);

	mclk = tegra_aic326x_get_mclk(srate);
	if (mclk < 0)
		return mclk;

	min_mclk = 64 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % min_mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
	i2s_daifmt |= pdata->i2s_param[BT_SCO].is_i2s_master ?
			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;

	switch (pdata->i2s_param[BT_SCO].i2s_mode) {
		case TEGRA_DAIFMT_I2S :
			i2s_daifmt |= SND_SOC_DAIFMT_I2S;
			break;
		case TEGRA_DAIFMT_DSP_A :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
			break;
		case TEGRA_DAIFMT_DSP_B :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
			break;
		case TEGRA_DAIFMT_LEFT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
			break;
		case TEGRA_DAIFMT_RIGHT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
			break;
		default :
			dev_err(card->dev, "Can't configure i2s format\n");
			return -EINVAL;
	}

	err = snd_soc_dai_set_fmt(rtd->cpu_dai, i2s_daifmt);

	if (err < 0) {
		dev_err(rtd->codec->card->dev, "cpu_dai fmt not set\n");
		return err;
	}

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC2,
					TEGRA20_DAS_DAP_ID_4);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_4,
					TEGRA20_DAS_DAP_SEL_DAC2);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#else
	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && i2s->is_dam_used)
		tegra_aic326x_set_dam_cif(i2s->dam_ifc, params_rate(params),
			params_channels(params), sample_size, 0, 0, 0, 0);
#endif

	return 0;
}
static int tegra_aic326x_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_aic326x *machine = snd_soc_card_get_drvdata(card);
	struct tegra_asoc_platform_data *pdata = machine->pdata;
	int srate, mclk, sample_size, i2s_daifmt;
	int err, rate;

	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		sample_size = 16;
		break;
	default:
		return -EINVAL;
	}

	srate = params_rate(params);

	mclk = tegra_aic326x_get_mclk(srate);
	if (mclk < 0)
		return mclk;

	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
	i2s_daifmt |= pdata->i2s_param[HIFI_CODEC].is_i2s_master ?
			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;

	switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
		case TEGRA_DAIFMT_I2S :
			i2s_daifmt |= SND_SOC_DAIFMT_I2S;
			break;
		case TEGRA_DAIFMT_DSP_A :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
			break;
		case TEGRA_DAIFMT_DSP_B :
			i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
			break;
		case TEGRA_DAIFMT_LEFT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
			break;
		case TEGRA_DAIFMT_RIGHT_J :
			i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
			break;
		default :
			dev_err(card->dev, "Can't configure i2s format\n");
			return -EINVAL;
	}

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	rate = clk_get_rate(machine->util_data.clk_cdev1);

	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_pll(codec_dai, 0, AIC3262_PLL_CLKIN_MCLK1 , rate,
		params_rate(params));

#ifdef CONFIG_ARCH_TEGRA_2x_SOC
	err = tegra20_das_connect_dac_to_dap(TEGRA20_DAS_DAP_SEL_DAC1,
					TEGRA20_DAS_DAP_ID_1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dap-dac path\n");
		return err;
	}

	err = tegra20_das_connect_dap_to_dac(TEGRA20_DAS_DAP_ID_1,
					TEGRA20_DAS_DAP_SEL_DAC1);
	if (err < 0) {
		dev_err(card->dev, "failed to set dac-dap path\n");
		return err;
	}
#endif
	return 0;
}