static int snddev_icodec_open_tx(struct snddev_icodec_state *icodec)
{
	int trc;
	int i, err;
	struct msm_afe_config afe_config;
	struct snddev_icodec_drv_state *drv = &snddev_icodec_drv;;

	wake_lock(&drv->tx_idlelock);

	/* Vote for PWM mode*/
	err = pmapp_smps_mode_vote(SMPS_AUDIO_RECORD_ID,
			PMAPP_VREG_S4, PMAPP_SMPS_MODE_VOTE_PWM);
	if (err != 0)
		MM_ERR("pmapp_smps_mode_vote error %d\n", err);

	/* Reuse pamp_on for TX platform-specific setup  */
	if (icodec->data->pamp_on)
		icodec->data->pamp_on();

	for (i = 0; i < icodec->data->pmctl_id_sz; i++) {
		pmic_hsed_enable(icodec->data->pmctl_id[i],
			 PM_HSED_ENABLE_PWM_TCXO);
	}

	/* enable MI2S TX master block */
	/* enable MI2S TX bit clock */
	trc = clk_set_rate(drv->tx_mclk,
		SNDDEV_ICODEC_CLK_RATE(icodec->sample_rate));
	if (IS_ERR_VALUE(trc))
		goto error_invalid_freq;
	clk_enable(drv->tx_mclk);
	clk_enable(drv->tx_sclk);

	/* Set MI2S */
	mi2s_set_codec_input_path((icodec->data->channel_mode ==
				REAL_STEREO_CHANNEL_MODE ? MI2S_CHAN_STEREO :
				(icodec->data->channel_mode == 2 ?
				 MI2S_CHAN_STEREO : MI2S_CHAN_MONO_RAW)),
				WT_16_BIT);
	/* Configure ADIE */
	trc = adie_codec_open(icodec->data->profile, &icodec->adie_path);
	if (IS_ERR_VALUE(trc))
		goto error_adie;
	/* Enable ADIE */
	adie_codec_setpath(icodec->adie_path, icodec->sample_rate, 256);
	adie_codec_proceed_stage(icodec->adie_path, ADIE_CODEC_DIGITAL_READY);
	adie_codec_proceed_stage(icodec->adie_path,
	ADIE_CODEC_DIGITAL_ANALOG_READY);

	/* Start AFE */
	afe_config.sample_rate = icodec->sample_rate / 1000;
	afe_config.channel_mode = icodec->data->channel_mode;
	afe_config.volume = AFE_VOLUME_UNITY;
	trc = afe_enable(AFE_HW_PATH_CODEC_TX, &afe_config);
	if (IS_ERR_VALUE(trc))
		goto error_afe;


	icodec->enabled = 1;

	wake_unlock(&drv->tx_idlelock);
	return 0;

error_afe:
	adie_codec_close(icodec->adie_path);
	icodec->adie_path = NULL;
error_adie:
	clk_disable(drv->tx_sclk);
	clk_disable(drv->tx_mclk);
error_invalid_freq:

	/* Disable mic bias */
	for (i = 0; i < icodec->data->pmctl_id_sz; i++) {
		pmic_hsed_enable(icodec->data->pmctl_id[i],
			 PM_HSED_ENABLE_OFF);
	}

	if (icodec->data->pamp_off)
		icodec->data->pamp_off();

	MM_ERR("encounter error\n");

	wake_unlock(&drv->tx_idlelock);
	return -ENODEV;
}
static int snddev_icodec_open_tx(struct snddev_icodec_state *icodec)
{
	int trc;
	struct msm_afe_config afe_config;
	struct snddev_icodec_drv_state *drv = &snddev_icodec_drv;;

	pmic_hsed_enable(PM_HSED_CONTROLLER_0, PM_HSED_ENABLE_PWM_TCXO);
	/* Voltage regulator voting
	 * Vote GP16, NCP, MSME, RF2
	 */
	vreg_enable(drv->vreg_gp16);
	vreg_enable(drv->vreg_ncp);
	vreg_enable(drv->vreg_msme);
	vreg_enable(drv->vreg_rf2);

	/* enable MI2S TX master block */
	/* enable MI2S TX bit clock */
	trc = clk_set_rate(drv->tx_mclk,
		SNDDEV_ICODEC_CLK_RATE(icodec->sample_rate));
	if (IS_ERR_VALUE(trc))
		goto error_invalid_freq;
	clk_enable(drv->tx_mclk);
	clk_enable(drv->tx_sclk);

	/* Set MI2S */
	mi2s_set_codec_input_path((icodec->data->channel_mode == 2 ? 1 : 0),
	WT_16_BIT);
	/* Configure ADIE */
	trc = adie_codec_open(icodec->data->profile, &icodec->adie_path);
	if (IS_ERR_VALUE(trc))
		goto error_adie;
	/* Enable ADIE */
	adie_codec_setpath(icodec->adie_path, icodec->sample_rate, 256);
	adie_codec_proceed_stage(icodec->adie_path, ADIE_CODEC_DIGITAL_READY);
	adie_codec_proceed_stage(icodec->adie_path,
	ADIE_CODEC_DIGITAL_ANALOG_READY);

	/* Start AFE */
	afe_config.sample_rate = icodec->sample_rate / 1000;
	afe_config.channel_mode = icodec->data->channel_mode;
	afe_config.volume = AFE_VOLUME_UNITY;
	trc = afe_enable(AFE_HW_PATH_CODEC_TX, &afe_config);
	if (IS_ERR_VALUE(trc))
		goto error_afe;
	icodec->enabled = 1;
	return 0;

error_afe:
	adie_codec_close(icodec->adie_path);
error_adie:
	clk_disable(drv->tx_sclk);
	clk_disable(drv->tx_mclk);
error_invalid_freq:
	vreg_disable(drv->vreg_gp16);
	vreg_disable(drv->vreg_ncp);
	vreg_disable(drv->vreg_msme);
	vreg_disable(drv->vreg_rf2);

	pr_err("%s: encounter error\n", __func__);
	return -ENODEV;
}
static void debugfs_afe_loopback(u32 loop)
{
	int trc;
	struct msm_afe_config afe_config;
	struct snddev_icodec_drv_state *drv = &snddev_icodec_drv;

	if (loop) {
		vreg_enable(drv->vreg_gp16);
		vreg_enable(drv->vreg_ncp);
		vreg_enable(drv->vreg_msme);
		vreg_enable(drv->vreg_rf2);

		/* enable MI2S RX master block */
		/* enable MI2S RX bit clock */
		trc = clk_set_rate(drv->rx_mclk,
		SNDDEV_ICODEC_CLK_RATE(8000));
		if (IS_ERR_VALUE(trc))
			pr_err("%s: failed to set clk rate\n", __func__);
		clk_enable(drv->rx_mclk);
		clk_enable(drv->rx_sclk);
		clk_enable(drv->lpa_codec_clk);
		clk_enable(drv->lpa_core_clk);
		clk_enable(drv->lpa_p_clk);
		/* Set audio interconnect reg to ADSP */
		audio_interct_codec(AUDIO_INTERCT_ADSP);
		/* Set MI2S */
		mi2s_set_codec_output_path(0, WT_16_BIT);
		pr_info("%s: configure ADIE RX path\n", __func__);
		/* Configure ADIE */
		adie_codec_open(&debug_rx_profile, &debugfs_rx_adie);
		adie_codec_setpath(debugfs_rx_adie, 8000, 256);
		afe_config.sample_rate = 8;
		afe_config.channel_mode = 1;
		afe_config.volume = AFE_VOLUME_UNITY;
		pr_info("%s: enable afe\n", __func__);
		trc = afe_enable(AFE_HW_PATH_CODEC_RX, &afe_config);
		if (IS_ERR_VALUE(trc))
			pr_err("%s: fail to enable afe rx\n", __func__);
		adie_codec_proceed_stage(debugfs_rx_adie,
		ADIE_CODEC_DIGITAL_ANALOG_READY);

		pr_info("%s: Enable Handset Mic bias\n", __func__);
		pmic_hsed_enable(PM_HSED_CONTROLLER_0, PM_HSED_ENABLE_PWM_TCXO);
		/* enable MI2S TX master block */
		/* enable MI2S TX bit clock */
		clk_set_rate(drv->tx_mclk,
			SNDDEV_ICODEC_CLK_RATE(8000));
		clk_enable(drv->tx_mclk);
		clk_enable(drv->tx_sclk);
		/* Set MI2S */
		mi2s_set_codec_input_path(0, WT_16_BIT);
		pr_info("%s: configure ADIE TX path\n", __func__);
		/* Configure ADIE */
		adie_codec_open(&debug_tx_profile, &debugfs_tx_adie);
		adie_codec_setpath(debugfs_tx_adie, 8000, 256);
		adie_codec_proceed_stage(debugfs_tx_adie,
		ADIE_CODEC_DIGITAL_ANALOG_READY);
		/* Start AFE */
		afe_config.sample_rate = 0x8;
		afe_config.channel_mode = 1;
		afe_config.volume = AFE_VOLUME_UNITY;
		trc = afe_enable(AFE_HW_PATH_CODEC_TX, &afe_config);
		if (IS_ERR_VALUE(trc))
			pr_err("%s: failed to enable AFE TX\n", __func__);
	} else {
		/* Disable ADIE */
		adie_codec_proceed_stage(debugfs_rx_adie,
		ADIE_CODEC_DIGITAL_OFF);
		adie_codec_close(debugfs_rx_adie);
		adie_codec_proceed_stage(debugfs_tx_adie,
		ADIE_CODEC_DIGITAL_OFF);
		adie_codec_close(debugfs_tx_adie);

		pmic_hsed_enable(PM_HSED_CONTROLLER_0, PM_HSED_ENABLE_OFF);

		vreg_disable(drv->vreg_gp16);
		vreg_disable(drv->vreg_ncp);
		vreg_disable(drv->vreg_msme);
		vreg_disable(drv->vreg_rf2);

		/* Disable MI2S RX master block */
		/* Disable MI2S RX bit clock */
		clk_disable(drv->rx_sclk);
		clk_disable(drv->rx_mclk);

		/* Disable MI2S TX master block */
		/* Disable MI2S TX bit clock */
		clk_disable(drv->tx_sclk);
		clk_disable(drv->tx_mclk);
	}
}
static void debugfs_afe_loopback(u32 loop)
{
	int trc;
	struct msm_afe_config afe_config;
	struct snddev_icodec_drv_state *drv = &snddev_icodec_drv;
	struct lpa_codec_config lpa_config;

	if (loop) {
		/* Vote for SMPS mode*/
		pmapp_smps_mode_vote(SMPS_AUDIO_PLAYBACK_ID,
				PMAPP_VREG_S4, PMAPP_SMPS_MODE_VOTE_PWM);

		/* enable MI2S RX master block */
		/* enable MI2S RX bit clock */
		trc = clk_set_rate(drv->rx_mclk,
		SNDDEV_ICODEC_CLK_RATE(8000));
		if (IS_ERR_VALUE(trc))
			MM_ERR("failed to set clk rate\n");
		clk_enable(drv->rx_mclk);
		clk_enable(drv->rx_sclk);
		clk_enable(drv->lpa_p_clk);
		clk_enable(drv->lpa_codec_clk);
		clk_enable(drv->lpa_core_clk);
		/* Enable LPA sub system
		 */
		drv->lpa = lpa_get();
		if (!drv->lpa)
			MM_ERR("failed to enable lpa\n");
		lpa_config.sample_rate = 8000;
		lpa_config.sample_width = 16;
		lpa_config.output_interface = LPA_OUTPUT_INTF_WB_CODEC;
		lpa_config.num_channels = 1;
		lpa_cmd_codec_config(drv->lpa, &lpa_config);
		/* Set audio interconnect reg to LPA */
		audio_interct_codec(AUDIO_INTERCT_LPA);
		mi2s_set_codec_output_path(MI2S_CHAN_MONO_PACKED, WT_16_BIT);
		MM_INFO("configure ADIE RX path\n");
		/* Configure ADIE */
		adie_codec_open(&debug_rx_profile, &debugfs_rx_adie);
		adie_codec_setpath(debugfs_rx_adie, 8000, 256);
		lpa_cmd_enable_codec(drv->lpa, 1);

		/* Start AFE for RX */
		afe_config.sample_rate = 0x8;
		afe_config.channel_mode = 1;
		afe_config.volume = AFE_VOLUME_UNITY;
		MM_INFO("enable afe\n");
		trc = afe_enable(AFE_HW_PATH_CODEC_RX, &afe_config);
		if (IS_ERR_VALUE(trc))
			MM_ERR("fail to enable afe RX\n");
		adie_codec_proceed_stage(debugfs_rx_adie,
		ADIE_CODEC_DIGITAL_READY);
		adie_codec_proceed_stage(debugfs_rx_adie,
		ADIE_CODEC_DIGITAL_ANALOG_READY);

		/* Vote for PWM mode*/
		pmapp_smps_mode_vote(SMPS_AUDIO_RECORD_ID,
			PMAPP_VREG_S4, PMAPP_SMPS_MODE_VOTE_PWM);

		MM_INFO("Enable Handset Mic bias\n");
		pmic_hsed_enable(PM_HSED_CONTROLLER_0, PM_HSED_ENABLE_PWM_TCXO);

		/* enable MI2S TX master block */
		/* enable MI2S TX bit clock */
		clk_set_rate(drv->tx_mclk,
			SNDDEV_ICODEC_CLK_RATE(8000));
		clk_enable(drv->tx_mclk);
		clk_enable(drv->tx_sclk);
		/* Set MI2S */
		mi2s_set_codec_input_path(MI2S_CHAN_MONO_PACKED, WT_16_BIT);
		MM_INFO("configure ADIE TX path\n");
		/* Configure ADIE */
		adie_codec_open(&debug_tx_profile, &debugfs_tx_adie);
		adie_codec_setpath(debugfs_tx_adie, 8000, 256);
		adie_codec_proceed_stage(debugfs_tx_adie,
		ADIE_CODEC_DIGITAL_READY);
		adie_codec_proceed_stage(debugfs_tx_adie,
		ADIE_CODEC_DIGITAL_ANALOG_READY);
		/* Start AFE for TX */
		afe_config.sample_rate = 0x8;
		afe_config.channel_mode = 1;
		afe_config.volume = AFE_VOLUME_UNITY;
		trc = afe_enable(AFE_HW_PATH_CODEC_TX, &afe_config);
		if (IS_ERR_VALUE(trc))
			MM_ERR("failed to enable AFE TX\n");
		/* Set the volume level to non unity, to avoid
		   loopback effect */
		afe_device_volume_ctrl(AFE_HW_PATH_CODEC_RX, 0x0500);

		/* enable afe loopback */
		afe_loopback(1);
		MM_INFO("AFE loopback enabled\n");
	} else {
		/* disable afe loopback */
		afe_loopback(0);
		/* Remove the vote for SMPS mode*/
		pmapp_smps_mode_vote(SMPS_AUDIO_PLAYBACK_ID,
			PMAPP_VREG_S4, PMAPP_SMPS_MODE_VOTE_DONTCARE);

		/* Disable ADIE */
		adie_codec_proceed_stage(debugfs_rx_adie,
		ADIE_CODEC_DIGITAL_OFF);
		adie_codec_close(debugfs_rx_adie);
		/* Disable AFE for RX */
		afe_disable(AFE_HW_PATH_CODEC_RX);

		/* Disable LPA Sub system */
		lpa_cmd_enable_codec(drv->lpa, 0);
		lpa_put(drv->lpa);

		/* Disable LPA clocks */
		clk_disable(drv->lpa_p_clk);
		clk_disable(drv->lpa_codec_clk);
		clk_disable(drv->lpa_core_clk);

		/* Disable MI2S RX master block */
		/* Disable MI2S RX bit clock */
		clk_disable(drv->rx_sclk);
		clk_disable(drv->rx_mclk);

		pmapp_smps_mode_vote(SMPS_AUDIO_RECORD_ID,
			PMAPP_VREG_S4, PMAPP_SMPS_MODE_VOTE_DONTCARE);

		/* Disable AFE for TX */
		afe_disable(AFE_HW_PATH_CODEC_TX);

		/* Disable ADIE */
		adie_codec_proceed_stage(debugfs_tx_adie,
		ADIE_CODEC_DIGITAL_OFF);
		adie_codec_close(debugfs_tx_adie);
		/* Disable MI2S TX master block */
		/* Disable MI2S TX bit clock */
		clk_disable(drv->tx_sclk);
		clk_disable(drv->tx_mclk);
		pmic_hsed_enable(PM_HSED_CONTROLLER_0, PM_HSED_ENABLE_OFF);
		MM_INFO("AFE loopback disabled\n");
	}
}