mt8173-afe-pcm.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Mediatek 8173 ALSA SoC AFE platform driver
 *
 * Copyright (c) 2015 MediaTek Inc.
 * Author: Koro Chen <[email protected]>
 *             Sascha Hauer <[email protected]>
 *             Hidalgo Huang <[email protected]>
 *             Ir Lian <[email protected]>
 */

#include <linux/delay.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_reserved_mem.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include "mt8173-afe-common.h"
#include "../common/mtk-base-afe.h"
#include "../common/mtk-afe-platform-driver.h"
#include "../common/mtk-afe-fe-dai.h"

/*****************************************************************************
 *                  R E G I S T E R       D E F I N I T I O N
 *****************************************************************************/
#define AUDIO_TOP_CON0		0x0000
#define AUDIO_TOP_CON1		0x0004
#define AFE_DAC_CON0		0x0010
#define AFE_DAC_CON1		0x0014
#define AFE_I2S_CON1		0x0034
#define AFE_I2S_CON2		0x0038
#define AFE_CONN_24BIT		0x006c
#define AFE_MEMIF_MSB		0x00cc

#define AFE_CONN1		0x0024
#define AFE_CONN2		0x0028
#define AFE_CONN3		0x002c
#define AFE_CONN7		0x0460
#define AFE_CONN8		0x0464
#define AFE_HDMI_CONN0		0x0390

/* Memory interface */
#define AFE_DL1_BASE		0x0040
#define AFE_DL1_CUR		0x0044
#define AFE_DL1_END		0x0048
#define AFE_DL2_BASE		0x0050
#define AFE_DL2_CUR		0x0054
#define AFE_AWB_BASE		0x0070
#define AFE_AWB_CUR		0x007c
#define AFE_VUL_BASE		0x0080
#define AFE_VUL_CUR		0x008c
#define AFE_VUL_END		0x0088
#define AFE_DAI_BASE		0x0090
#define AFE_DAI_CUR		0x009c
#define AFE_MOD_PCM_BASE	0x0330
#define AFE_MOD_PCM_CUR		0x033c
#define AFE_HDMI_OUT_BASE	0x0374
#define AFE_HDMI_OUT_CUR	0x0378
#define AFE_HDMI_OUT_END	0x037c

#define AFE_ADDA_TOP_CON0	0x0120
#define AFE_ADDA2_TOP_CON0	0x0600

#define AFE_HDMI_OUT_CON0	0x0370

#define AFE_IRQ_MCU_CON		0x03a0
#define AFE_IRQ_STATUS		0x03a4
#define AFE_IRQ_CLR		0x03a8
#define AFE_IRQ_CNT1		0x03ac
#define AFE_IRQ_CNT2		0x03b0
#define AFE_IRQ_MCU_EN		0x03b4
#define AFE_IRQ_CNT5		0x03bc
#define AFE_IRQ_CNT7		0x03dc

#define AFE_TDM_CON1		0x0548
#define AFE_TDM_CON2		0x054c

#define AFE_IRQ_STATUS_BITS	0xff

/* AUDIO_TOP_CON0 (0x0000) */
#define AUD_TCON0_PDN_SPDF		(0x1 << 21)
#define AUD_TCON0_PDN_HDMI		(0x1 << 20)
#define AUD_TCON0_PDN_24M		(0x1 << 9)
#define AUD_TCON0_PDN_22M		(0x1 << 8)
#define AUD_TCON0_PDN_AFE		(0x1 << 2)

/* AFE_I2S_CON1 (0x0034) */
#define AFE_I2S_CON1_LOW_JITTER_CLK	(0x1 << 12)
#define AFE_I2S_CON1_RATE(x)		(((x) & 0xf) << 8)
#define AFE_I2S_CON1_FORMAT_I2S		(0x1 << 3)
#define AFE_I2S_CON1_EN			(0x1 << 0)

/* AFE_I2S_CON2 (0x0038) */
#define AFE_I2S_CON2_LOW_JITTER_CLK	(0x1 << 12)
#define AFE_I2S_CON2_RATE(x)		(((x) & 0xf) << 8)
#define AFE_I2S_CON2_FORMAT_I2S		(0x1 << 3)
#define AFE_I2S_CON2_EN			(0x1 << 0)

/* AFE_CONN_24BIT (0x006c) */
#define AFE_CONN_24BIT_O04		(0x1 << 4)
#define AFE_CONN_24BIT_O03		(0x1 << 3)

/* AFE_HDMI_CONN0 (0x0390) */
#define AFE_HDMI_CONN0_O37_I37		(0x7 << 21)
#define AFE_HDMI_CONN0_O36_I36		(0x6 << 18)
#define AFE_HDMI_CONN0_O35_I33		(0x3 << 15)
#define AFE_HDMI_CONN0_O34_I32		(0x2 << 12)
#define AFE_HDMI_CONN0_O33_I35		(0x5 << 9)
#define AFE_HDMI_CONN0_O32_I34		(0x4 << 6)
#define AFE_HDMI_CONN0_O31_I31		(0x1 << 3)
#define AFE_HDMI_CONN0_O30_I30		(0x0 << 0)

/* AFE_TDM_CON1 (0x0548) */
#define AFE_TDM_CON1_LRCK_WIDTH(x)	(((x) - 1) << 24)
#define AFE_TDM_CON1_32_BCK_CYCLES	(0x2 << 12)
#define AFE_TDM_CON1_WLEN_32BIT		(0x2 << 8)
#define AFE_TDM_CON1_MSB_ALIGNED	(0x1 << 4)
#define AFE_TDM_CON1_1_BCK_DELAY	(0x1 << 3)
#define AFE_TDM_CON1_LRCK_INV		(0x1 << 2)
#define AFE_TDM_CON1_BCK_INV		(0x1 << 1)
#define AFE_TDM_CON1_EN			(0x1 << 0)

enum afe_tdm_ch_start {
	AFE_TDM_CH_START_O30_O31 = 0,
	AFE_TDM_CH_START_O32_O33,
	AFE_TDM_CH_START_O34_O35,
	AFE_TDM_CH_START_O36_O37,
	AFE_TDM_CH_ZERO,
};

static const unsigned int mt8173_afe_backup_list[] = {
	AUDIO_TOP_CON0,
	AFE_CONN1,
	AFE_CONN2,
	AFE_CONN7,
	AFE_CONN8,
	AFE_DAC_CON1,
	AFE_DL1_BASE,
	AFE_DL1_END,
	AFE_VUL_BASE,
	AFE_VUL_END,
	AFE_HDMI_OUT_BASE,
	AFE_HDMI_OUT_END,
	AFE_HDMI_CONN0,
	AFE_DAC_CON0,
};

struct mt8173_afe_private {
	struct clk *clocks[MT8173_CLK_NUM];
};

static const struct snd_pcm_hardware mt8173_afe_hardware = {
	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
		 SNDRV_PCM_INFO_MMAP_VALID),
	.buffer_bytes_max = 256 * 1024,
	.period_bytes_min = 512,
	.period_bytes_max = 128 * 1024,
	.periods_min = 2,
	.periods_max = 256,
	.fifo_size = 0,
};

struct mt8173_afe_rate {
	unsigned int rate;
	unsigned int regvalue;
};

static const struct mt8173_afe_rate mt8173_afe_i2s_rates[] = {
	{ .rate = 8000, .regvalue = 0 },
	{ .rate = 11025, .regvalue = 1 },
	{ .rate = 12000, .regvalue = 2 },
	{ .rate = 16000, .regvalue = 4 },
	{ .rate = 22050, .regvalue = 5 },
	{ .rate = 24000, .regvalue = 6 },
	{ .rate = 32000, .regvalue = 8 },
	{ .rate = 44100, .regvalue = 9 },
	{ .rate = 48000, .regvalue = 10 },
	{ .rate = 88000, .regvalue = 11 },
	{ .rate = 96000, .regvalue = 12 },
	{ .rate = 174000, .regvalue = 13 },
	{ .rate = 192000, .regvalue = 14 },
};

static int mt8173_afe_i2s_fs(unsigned int sample_rate)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(mt8173_afe_i2s_rates); i++)
		if (mt8173_afe_i2s_rates[i].rate == sample_rate)
			return mt8173_afe_i2s_rates[i].regvalue;

	return -EINVAL;
}

static int mt8173_afe_set_i2s(struct mtk_base_afe *afe, unsigned int rate)
{
	unsigned int val;
	int fs = mt8173_afe_i2s_fs(rate);

	if (fs < 0)
		return -EINVAL;

	/* from external ADC */
	regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x1);
	regmap_update_bits(afe->regmap, AFE_ADDA2_TOP_CON0, 0x1, 0x1);

	/* set input */
	val = AFE_I2S_CON2_LOW_JITTER_CLK |
	      AFE_I2S_CON2_RATE(fs) |
	      AFE_I2S_CON2_FORMAT_I2S;

	regmap_update_bits(afe->regmap, AFE_I2S_CON2, ~AFE_I2S_CON2_EN, val);

	/* set output */
	val = AFE_I2S_CON1_LOW_JITTER_CLK |
	      AFE_I2S_CON1_RATE(fs) |
	      AFE_I2S_CON1_FORMAT_I2S;

	regmap_update_bits(afe->regmap, AFE_I2S_CON1, ~AFE_I2S_CON1_EN, val);
	return 0;
}

static void mt8173_afe_set_i2s_enable(struct mtk_base_afe *afe, bool enable)
{
	unsigned int val;

	regmap_read(afe->regmap, AFE_I2S_CON2, &val);
	if (!!(val & AFE_I2S_CON2_EN) == enable)
		return;

	/* input */
	regmap_update_bits(afe->regmap, AFE_I2S_CON2, 0x1, enable);

	/* output */
	regmap_update_bits(afe->regmap, AFE_I2S_CON1, 0x1, enable);
}

static int mt8173_afe_dais_enable_clks(struct mtk_base_afe *afe,
				       struct clk *m_ck, struct clk *b_ck)
{
	int ret;

	if (m_ck) {
		ret = clk_prepare_enable(m_ck);
		if (ret) {
			dev_err(afe->dev, "Failed to enable m_ck\n");
			return ret;
		}
	}

	if (b_ck) {
		ret = clk_prepare_enable(b_ck);
		if (ret) {
			dev_err(afe->dev, "Failed to enable b_ck\n");
			return ret;
		}
	}
	return 0;
}

static int mt8173_afe_dais_set_clks(struct mtk_base_afe *afe,
				    struct clk *m_ck, unsigned int mck_rate,
				    struct clk *b_ck, unsigned int bck_rate)
{
	int ret;

	if (m_ck) {
		ret = clk_set_rate(m_ck, mck_rate);
		if (ret) {
			dev_err(afe->dev, "Failed to set m_ck rate\n");
			return ret;
		}
	}

	if (b_ck) {
		ret = clk_set_rate(b_ck, bck_rate);
		if (ret) {
			dev_err(afe->dev, "Failed to set b_ck rate\n");
			return ret;
		}
	}
	return 0;
}

static void mt8173_afe_dais_disable_clks(struct mtk_base_afe *afe,
					 struct clk *m_ck, struct clk *b_ck)
{
	clk_disable_unprepare(m_ck);
	clk_disable_unprepare(b_ck);
}

static int mt8173_afe_i2s_startup(struct snd_pcm_substream *substream,
				  struct snd_soc_dai *dai)
{
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);

	if (snd_soc_dai_active(dai))
		return 0;

	regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
			   AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, 0);
	return 0;
}

static void mt8173_afe_i2s_shutdown(struct snd_pcm_substream *substream,
				    struct snd_soc_dai *dai)
{
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);

	if (snd_soc_dai_active(dai))
		return;

	mt8173_afe_set_i2s_enable(afe, false);
	regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
			   AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M,
			   AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M);
}

static int mt8173_afe_i2s_prepare(struct snd_pcm_substream *substream,
				  struct snd_soc_dai *dai)
{
	struct snd_pcm_runtime * const runtime = substream->runtime;
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;
	int ret;

	mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S1_M],
				 runtime->rate * 256, NULL, 0);
	mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S2_M],
				 runtime->rate * 256, NULL, 0);
	/* config I2S */
	ret = mt8173_afe_set_i2s(afe, substream->runtime->rate);
	if (ret)
		return ret;

	mt8173_afe_set_i2s_enable(afe, true);

	return 0;
}

static int mt8173_afe_hdmi_startup(struct snd_pcm_substream *substream,
				   struct snd_soc_dai *dai)
{
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;

	if (snd_soc_dai_active(dai))
		return 0;

	mt8173_afe_dais_enable_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
				    afe_priv->clocks[MT8173_CLK_I2S3_B]);
	return 0;
}

static void mt8173_afe_hdmi_shutdown(struct snd_pcm_substream *substream,
				     struct snd_soc_dai *dai)
{
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;

	if (snd_soc_dai_active(dai))
		return;

	mt8173_afe_dais_disable_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
				     afe_priv->clocks[MT8173_CLK_I2S3_B]);
}

static int mt8173_afe_hdmi_prepare(struct snd_pcm_substream *substream,
				   struct snd_soc_dai *dai)
{
	struct snd_pcm_runtime * const runtime = substream->runtime;
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;

	unsigned int val;

	mt8173_afe_dais_set_clks(afe, afe_priv->clocks[MT8173_CLK_I2S3_M],
				 runtime->rate * 128,
				 afe_priv->clocks[MT8173_CLK_I2S3_B],
				 runtime->rate * runtime->channels * 32);

	val = AFE_TDM_CON1_BCK_INV |
	      AFE_TDM_CON1_LRCK_INV |
	      AFE_TDM_CON1_1_BCK_DELAY |
	      AFE_TDM_CON1_MSB_ALIGNED | /* I2S mode */
	      AFE_TDM_CON1_WLEN_32BIT |
	      AFE_TDM_CON1_32_BCK_CYCLES |
	      AFE_TDM_CON1_LRCK_WIDTH(32);
	regmap_update_bits(afe->regmap, AFE_TDM_CON1, ~AFE_TDM_CON1_EN, val);

	/* set tdm2 config */
	switch (runtime->channels) {
	case 1:
	case 2:
		val = AFE_TDM_CH_START_O30_O31;
		val |= (AFE_TDM_CH_ZERO << 4);
		val |= (AFE_TDM_CH_ZERO << 8);
		val |= (AFE_TDM_CH_ZERO << 12);
		break;
	case 3:
	case 4:
		val = AFE_TDM_CH_START_O30_O31;
		val |= (AFE_TDM_CH_START_O32_O33 << 4);
		val |= (AFE_TDM_CH_ZERO << 8);
		val |= (AFE_TDM_CH_ZERO << 12);
		break;
	case 5:
	case 6:
		val = AFE_TDM_CH_START_O30_O31;
		val |= (AFE_TDM_CH_START_O32_O33 << 4);
		val |= (AFE_TDM_CH_START_O34_O35 << 8);
		val |= (AFE_TDM_CH_ZERO << 12);
		break;
	case 7:
	case 8:
		val = AFE_TDM_CH_START_O30_O31;
		val |= (AFE_TDM_CH_START_O32_O33 << 4);
		val |= (AFE_TDM_CH_START_O34_O35 << 8);
		val |= (AFE_TDM_CH_START_O36_O37 << 12);
		break;
	default:
		val = 0;
	}
	regmap_update_bits(afe->regmap, AFE_TDM_CON2, 0x0000ffff, val);

	regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
			   0x000000f0, runtime->channels << 4);
	return 0;
}

static int mt8173_afe_hdmi_trigger(struct snd_pcm_substream *substream, int cmd,
				   struct snd_soc_dai *dai)
{
	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);

	dev_info(afe->dev, "%s cmd=%d %s\n", __func__, cmd, dai->name);

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
	case SNDRV_PCM_TRIGGER_RESUME:
		regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
				   AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF, 0);

		/* set connections:  O30~O37: L/R/LS/RS/C/LFE/CH7/CH8 */
		regmap_write(afe->regmap, AFE_HDMI_CONN0,
				 AFE_HDMI_CONN0_O30_I30 |
				 AFE_HDMI_CONN0_O31_I31 |
				 AFE_HDMI_CONN0_O32_I34 |
				 AFE_HDMI_CONN0_O33_I35 |
				 AFE_HDMI_CONN0_O34_I32 |
				 AFE_HDMI_CONN0_O35_I33 |
				 AFE_HDMI_CONN0_O36_I36 |
				 AFE_HDMI_CONN0_O37_I37);

		/* enable Out control */
		regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0x1);

		/* enable tdm */
		regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0x1);

		return 0;
	case SNDRV_PCM_TRIGGER_STOP:
	case SNDRV_PCM_TRIGGER_SUSPEND:
		/* disable tdm */
		regmap_update_bits(afe->regmap, AFE_TDM_CON1, 0x1, 0);

		/* disable Out control */
		regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0, 0x1, 0);

		regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
				   AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF,
				   AUD_TCON0_PDN_HDMI | AUD_TCON0_PDN_SPDF);
		return 0;
	default:
		return -EINVAL;
	}
}

static int mt8173_memif_fs(struct snd_pcm_substream *substream,
			   unsigned int rate)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
	struct mtk_base_afe_memif *memif = &afe->memif[snd_soc_rtd_to_cpu(rtd, 0)->id];
	int fs;

	if (memif->data->id == MT8173_AFE_MEMIF_DAI ||
	    memif->data->id == MT8173_AFE_MEMIF_MOD_DAI) {
		switch (rate) {
		case 8000:
			fs = 0;
			break;
		case 16000:
			fs = 1;
			break;
		case 32000:
			fs = 2;
			break;
		default:
			return -EINVAL;
		}
	} else {
		fs = mt8173_afe_i2s_fs(rate);
	}
	return fs;
}

static int mt8173_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
{
	return mt8173_afe_i2s_fs(rate);
}

/* BE DAIs */
static const struct snd_soc_dai_ops mt8173_afe_i2s_ops = {
	.startup	= mt8173_afe_i2s_startup,
	.shutdown	= mt8173_afe_i2s_shutdown,
	.prepare	= mt8173_afe_i2s_prepare,
};

static const struct snd_soc_dai_ops mt8173_afe_hdmi_ops = {
	.startup	= mt8173_afe_hdmi_startup,
	.shutdown	= mt8173_afe_hdmi_shutdown,
	.prepare	= mt8173_afe_hdmi_prepare,
	.trigger	= mt8173_afe_hdmi_trigger,
};

static struct snd_soc_dai_driver mt8173_afe_pcm_dais[] = {
	/* FE DAIs: memory intefaces to CPU */
	{
		.name = "DL1", /* downlink 1 */
		.id = MT8173_AFE_MEMIF_DL1,
		.playback = {
			.stream_name = "DL1",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_8000_48000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &mtk_afe_fe_ops,
	}, {
		.name = "VUL", /* voice uplink */
		.id = MT8173_AFE_MEMIF_VUL,
		.capture = {
			.stream_name = "VUL",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_8000_48000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &mtk_afe_fe_ops,
	}, {
	/* BE DAIs */
		.name = "I2S",
		.id = MT8173_AFE_IO_I2S,
		.playback = {
			.stream_name = "I2S Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_8000_48000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.capture = {
			.stream_name = "I2S Capture",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_8000_48000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &mt8173_afe_i2s_ops,
		.symmetric_rate = 1,
	},
};

static struct snd_soc_dai_driver mt8173_afe_hdmi_dais[] = {
	/* FE DAIs */
	{
		.name = "HDMI",
		.id = MT8173_AFE_MEMIF_HDMI,
		.playback = {
			.stream_name = "HDMI",
			.channels_min = 2,
			.channels_max = 8,
			.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
				SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
				SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
				SNDRV_PCM_RATE_192000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &mtk_afe_fe_ops,
	}, {
	/* BE DAIs */
		.name = "HDMIO",
		.id = MT8173_AFE_IO_HDMI,
		.playback = {
			.stream_name = "HDMIO Playback",
			.channels_min = 2,
			.channels_max = 8,
			.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
				SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
				SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
				SNDRV_PCM_RATE_192000,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
		.ops = &mt8173_afe_hdmi_ops,
	},
};

static const struct snd_kcontrol_new mt8173_afe_o03_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("I05 Switch", AFE_CONN1, 21, 1, 0),
};

static const struct snd_kcontrol_new mt8173_afe_o04_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("I06 Switch", AFE_CONN2, 6, 1, 0),
};

static const struct snd_kcontrol_new mt8173_afe_o09_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("I03 Switch", AFE_CONN3, 0, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("I17 Switch", AFE_CONN7, 30, 1, 0),
};

static const struct snd_kcontrol_new mt8173_afe_o10_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("I04 Switch", AFE_CONN3, 3, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("I18 Switch", AFE_CONN8, 0, 1, 0),
};

static const struct snd_soc_dapm_widget mt8173_afe_pcm_widgets[] = {
	/* inter-connections */
	SND_SOC_DAPM_MIXER("I03", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("I04", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("I05", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("I06", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("I17", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_MIXER("I18", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_MIXER("O03", SND_SOC_NOPM, 0, 0,
			   mt8173_afe_o03_mix, ARRAY_SIZE(mt8173_afe_o03_mix)),
	SND_SOC_DAPM_MIXER("O04", SND_SOC_NOPM, 0, 0,
			   mt8173_afe_o04_mix, ARRAY_SIZE(mt8173_afe_o04_mix)),
	SND_SOC_DAPM_MIXER("O09", SND_SOC_NOPM, 0, 0,
			   mt8173_afe_o09_mix, ARRAY_SIZE(mt8173_afe_o09_mix)),
	SND_SOC_DAPM_MIXER("O10", SND_SOC_NOPM, 0, 0,
			   mt8173_afe_o10_mix, ARRAY_SIZE(mt8173_afe_o10_mix)),
};

static const struct snd_soc_dapm_route mt8173_afe_pcm_routes[] = {
	{"I05", NULL, "DL1"},
	{"I06", NULL, "DL1"},
	{"I2S Playback", NULL, "O03"},
	{"I2S Playback", NULL, "O04"},
	{"VUL", NULL, "O09"},
	{"VUL", NULL, "O10"},
	{"I03", NULL, "I2S Capture"},
	{"I04", NULL, "I2S Capture"},
	{"I17", NULL, "I2S Capture"},
	{"I18", NULL, "I2S Capture"},
	{ "O03", "I05 Switch", "I05" },
	{ "O04", "I06 Switch", "I06" },
	{ "O09", "I17 Switch", "I17" },
	{ "O09", "I03 Switch", "I03" },
	{ "O10", "I18 Switch", "I18" },
	{ "O10", "I04 Switch", "I04" },
};

static const struct snd_soc_dapm_route mt8173_afe_hdmi_routes[] = {
	{"HDMIO Playback", NULL, "HDMI"},
};

static const struct snd_soc_component_driver mt8173_afe_pcm_dai_component = {
	.name = "mt8173-afe-pcm-dai",
	.dapm_widgets = mt8173_afe_pcm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(mt8173_afe_pcm_widgets),
	.dapm_routes = mt8173_afe_pcm_routes,
	.num_dapm_routes = ARRAY_SIZE(mt8173_afe_pcm_routes),
	.suspend = mtk_afe_suspend,
	.resume = mtk_afe_resume,
};

static const struct snd_soc_component_driver mt8173_afe_hdmi_dai_component = {
	.name = "mt8173-afe-hdmi-dai",
	.dapm_routes = mt8173_afe_hdmi_routes,
	.num_dapm_routes = ARRAY_SIZE(mt8173_afe_hdmi_routes),
	.suspend = mtk_afe_suspend,
	.resume = mtk_afe_resume,
};

static const char *aud_clks[MT8173_CLK_NUM] = {
	[MT8173_CLK_INFRASYS_AUD] = "infra_sys_audio_clk",
	[MT8173_CLK_TOP_PDN_AUD] = "top_pdn_audio",
	[MT8173_CLK_TOP_PDN_AUD_BUS] = "top_pdn_aud_intbus",
	[MT8173_CLK_I2S0_M] =  "i2s0_m",
	[MT8173_CLK_I2S1_M] =  "i2s1_m",
	[MT8173_CLK_I2S2_M] =  "i2s2_m",
	[MT8173_CLK_I2S3_M] =  "i2s3_m",
	[MT8173_CLK_I2S3_B] =  "i2s3_b",
	[MT8173_CLK_BCK0] =  "bck0",
	[MT8173_CLK_BCK1] =  "bck1",
};

static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
	{
		.name = "DL1",
		.id = MT8173_AFE_MEMIF_DL1,
		.reg_ofs_base = AFE_DL1_BASE,
		.reg_ofs_cur = AFE_DL1_CUR,
		.fs_reg = AFE_DAC_CON1,
		.fs_shift = 0,
		.fs_maskbit = 0xf,
		.mono_reg = AFE_DAC_CON1,
		.mono_shift = 21,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 1,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 0,
		.agent_disable_reg = -1,
	}, {
		.name = "DL2",
		.id = MT8173_AFE_MEMIF_DL2,
		.reg_ofs_base = AFE_DL2_BASE,
		.reg_ofs_cur = AFE_DL2_CUR,
		.fs_reg = AFE_DAC_CON1,
		.fs_shift = 4,
		.fs_maskbit = 0xf,
		.mono_reg = AFE_DAC_CON1,
		.mono_shift = 22,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 2,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 1,
		.agent_disable_reg = -1,
	}, {
		.name = "VUL",
		.id = MT8173_AFE_MEMIF_VUL,
		.reg_ofs_base = AFE_VUL_BASE,
		.reg_ofs_cur = AFE_VUL_CUR,
		.fs_reg = AFE_DAC_CON1,
		.fs_shift = 16,
		.fs_maskbit = 0xf,
		.mono_reg = AFE_DAC_CON1,
		.mono_shift = 27,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 3,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 6,
		.agent_disable_reg = -1,
	}, {
		.name = "DAI",
		.id = MT8173_AFE_MEMIF_DAI,
		.reg_ofs_base = AFE_DAI_BASE,
		.reg_ofs_cur = AFE_DAI_CUR,
		.fs_reg = AFE_DAC_CON0,
		.fs_shift = 24,
		.fs_maskbit = 0x3,
		.mono_reg = -1,
		.mono_shift = -1,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 4,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 5,
		.agent_disable_reg = -1,
	}, {
		.name = "AWB",
		.id = MT8173_AFE_MEMIF_AWB,
		.reg_ofs_base = AFE_AWB_BASE,
		.reg_ofs_cur = AFE_AWB_CUR,
		.fs_reg = AFE_DAC_CON1,
		.fs_shift = 12,
		.fs_maskbit = 0xf,
		.mono_reg = AFE_DAC_CON1,
		.mono_shift = 24,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 6,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 3,
		.agent_disable_reg = -1,
	}, {
		.name = "MOD_DAI",
		.id = MT8173_AFE_MEMIF_MOD_DAI,
		.reg_ofs_base = AFE_MOD_PCM_BASE,
		.reg_ofs_cur = AFE_MOD_PCM_CUR,
		.fs_reg = AFE_DAC_CON1,
		.fs_shift = 30,
		.fs_maskbit = 0x3,
		.mono_reg = AFE_DAC_CON1,
		.mono_shift = 30,
		.hd_reg = -1,
		.enable_reg = AFE_DAC_CON0,
		.enable_shift = 7,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 4,
		.agent_disable_reg = -1,
	}, {
		.name = "HDMI",
		.id = MT8173_AFE_MEMIF_HDMI,
		.reg_ofs_base = AFE_HDMI_OUT_BASE,
		.reg_ofs_cur = AFE_HDMI_OUT_CUR,
		.fs_reg = -1,
		.fs_shift = -1,
		.fs_maskbit = -1,
		.mono_reg = -1,
		.mono_shift = -1,
		.hd_reg = -1,
		.enable_reg = -1,
		.msb_reg = AFE_MEMIF_MSB,
		.msb_shift = 8,
		.agent_disable_reg = -1,
	},
};

static const struct mtk_base_irq_data irq_data[MT8173_AFE_IRQ_NUM] = {
	{
		.id = MT8173_AFE_IRQ_DL1,
		.irq_cnt_reg = AFE_IRQ_CNT1,
		.irq_cnt_shift = 0,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 0,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 4,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 0,
	}, {
		.id = MT8173_AFE_IRQ_DL2,
		.irq_cnt_reg = AFE_IRQ_CNT1,
		.irq_cnt_shift = 20,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 2,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 16,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 2,

	}, {
		.id = MT8173_AFE_IRQ_VUL,
		.irq_cnt_reg = AFE_IRQ_CNT2,
		.irq_cnt_shift = 0,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 1,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 8,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 1,
	}, {
		.id = MT8173_AFE_IRQ_DAI,
		.irq_cnt_reg = AFE_IRQ_CNT2,
		.irq_cnt_shift = 20,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 3,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 20,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 3,
	}, {
		.id = MT8173_AFE_IRQ_AWB,
		.irq_cnt_reg = AFE_IRQ_CNT7,
		.irq_cnt_shift = 0,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 14,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 24,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 6,
	}, {
		.id = MT8173_AFE_IRQ_DAI,
		.irq_cnt_reg = AFE_IRQ_CNT2,
		.irq_cnt_shift = 20,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 3,
		.irq_fs_reg = AFE_IRQ_MCU_CON,
		.irq_fs_shift = 20,
		.irq_fs_maskbit = 0xf,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 3,
	}, {
		.id = MT8173_AFE_IRQ_HDMI,
		.irq_cnt_reg = AFE_IRQ_CNT5,
		.irq_cnt_shift = 0,
		.irq_cnt_maskbit = 0x3ffff,
		.irq_en_reg = AFE_IRQ_MCU_CON,
		.irq_en_shift = 12,
		.irq_fs_reg = -1,
		.irq_fs_maskbit = -1,
		.irq_clr_reg = AFE_IRQ_CLR,
		.irq_clr_shift = 4,
	},
};

static const struct regmap_config mt8173_afe_regmap_config = {
	.reg_bits = 32,
	.reg_stride = 4,
	.val_bits = 32,
	.max_register = AFE_ADDA2_TOP_CON0,
	.cache_type = REGCACHE_NONE,
};

static irqreturn_t mt8173_afe_irq_handler(int irq, void *dev_id)
{
	struct mtk_base_afe *afe = dev_id;
	unsigned int reg_value;
	int i, ret;

	ret = regmap_read(afe->regmap, AFE_IRQ_STATUS, &reg_value);
	if (ret) {
		dev_err(afe->dev, "%s irq status err\n", __func__);
		reg_value = AFE_IRQ_STATUS_BITS;
		goto err_irq;
	}

	for (i = 0; i < MT8173_AFE_MEMIF_NUM; i++) {
		struct mtk_base_afe_memif *memif = &afe->memif[i];
		struct mtk_base_afe_irq *irq_p;

		if (memif->irq_usage < 0)
			continue;

		irq_p = &afe->irqs[memif->irq_usage];

		if (!(reg_value & (1 << irq_p->irq_data->irq_clr_shift)))
			continue;

		snd_pcm_period_elapsed(memif->substream);
	}

err_irq:
	/* clear irq */
	regmap_write(afe->regmap, AFE_IRQ_CLR,
		     reg_value & AFE_IRQ_STATUS_BITS);

	return IRQ_HANDLED;
}

static int mt8173_afe_runtime_suspend(struct device *dev)
{
	struct mtk_base_afe *afe = dev_get_drvdata(dev);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;

	/* disable AFE */
	regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0);

	/* disable AFE clk */
	regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
			   AUD_TCON0_PDN_AFE, AUD_TCON0_PDN_AFE);

	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S1_M]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S2_M]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK0]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK1]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
	return 0;
}

static int mt8173_afe_runtime_resume(struct device *dev)
{
	struct mtk_base_afe *afe = dev_get_drvdata(dev);
	struct mt8173_afe_private *afe_priv = afe->platform_priv;
	int ret;

	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
	if (ret)
		return ret;

	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
	if (ret)
		goto err_infra;

	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
	if (ret)
		goto err_top_aud_bus;

	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_BCK0]);
	if (ret)
		goto err_top_aud;

	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_BCK1]);
	if (ret)
		goto err_bck0;
	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_I2S1_M]);
	if (ret)
		goto err_i2s1_m;
	ret = clk_prepare_enable(afe_priv->clocks[MT8173_CLK_I2S2_M]);
	if (ret)
		goto err_i2s2_m;

	/* enable AFE clk */
	regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUD_TCON0_PDN_AFE, 0);

	/* set O3/O4 16bits */
	regmap_update_bits(afe->regmap, AFE_CONN_24BIT,
			   AFE_CONN_24BIT_O03 | AFE_CONN_24BIT_O04, 0);

	/* unmask all IRQs */
	regmap_update_bits(afe->regmap, AFE_IRQ_MCU_EN, 0xff, 0xff);

	/* enable AFE */
	regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1);
	return 0;

err_i2s1_m:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S1_M]);
err_i2s2_m:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_I2S2_M]);
err_bck0:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_BCK0]);
err_top_aud:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD]);
err_top_aud_bus:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_TOP_PDN_AUD_BUS]);
err_infra:
	clk_disable_unprepare(afe_priv->clocks[MT8173_CLK_INFRASYS_AUD]);
	return ret;
}

static int mt8173_afe_init_audio_clk(struct mtk_base_afe *afe)
{
	size_t i;
	struct mt8173_afe_private *afe_priv = afe->platform_priv;

	for (i = 0; i < ARRAY_SIZE(aud_clks); i++) {
		afe_priv->clocks[i] = devm_clk_get(afe->dev, aud_clks[i]);
		if (IS_ERR(afe_priv->clocks[i])) {
			dev_err(afe->dev, "%s devm_clk_get %s fail\n",
				__func__, aud_clks[i]);
			return PTR_ERR(afe_priv->clocks[i]);
		}
	}
	clk_set_rate(afe_priv->clocks[MT8173_CLK_BCK0], 22579200); /* 22M */
	clk_set_rate(afe_priv->clocks[MT8173_CLK_BCK1], 24576000); /* 24M */
	return 0;
}

static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev)
{
	int ret, i;
	int irq_id;
	struct mtk_base_afe *afe;
	struct mt8173_afe_private *afe_priv;
	struct snd_soc_component *comp_pcm, *comp_hdmi;
	struct device *dev = &pdev->dev;

	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(33));
	if (ret)
		return ret;

	afe = devm_kzalloc(dev, sizeof(*afe), GFP_KERNEL);
	if (!afe)
		return -ENOMEM;

	afe->platform_priv = devm_kzalloc(dev, sizeof(*afe_priv), GFP_KERNEL);
	afe_priv = afe->platform_priv;
	if (!afe_priv)
		return -ENOMEM;

	afe->dev = dev;

	ret = of_reserved_mem_device_init(dev);
	if (ret) {
		dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n");
		afe->preallocate_buffers = true;
	}

	irq_id = platform_get_irq(pdev, 0);
	if (irq_id <= 0)
		return irq_id < 0 ? irq_id : -ENXIO;

	afe->base_addr = devm_platform_ioremap_resource(pdev, 0);
	if (IS_ERR(afe->base_addr))
		return PTR_ERR(afe->base_addr);

	afe->regmap = devm_regmap_init_mmio(dev, afe->base_addr,
					    &mt8173_afe_regmap_config);
	if (IS_ERR(afe->regmap))
		return PTR_ERR(afe->regmap);

	/* initial audio related clock */
	ret = mt8173_afe_init_audio_clk(afe);
	if (ret) {
		dev_err(dev, "mt8173_afe_init_audio_clk fail\n");
		return ret;
	}

	/* memif % irq initialize*/
	afe->memif_size = MT8173_AFE_MEMIF_NUM;
	afe->memif = devm_kcalloc(dev, afe->memif_size,
				  sizeof(*afe->memif), GFP_KERNEL);
	if (!afe->memif)
		return -ENOMEM;

	afe->irqs_size = MT8173_AFE_IRQ_NUM;
	afe->irqs = devm_kcalloc(dev, afe->irqs_size,
				 sizeof(*afe->irqs), GFP_KERNEL);
	if (!afe->irqs)
		return -ENOMEM;

	for (i = 0; i < afe->irqs_size; i++) {
		afe->memif[i].data = &memif_data[i];
		afe->irqs[i].irq_data = &irq_data[i];
		afe->irqs[i].irq_occupyed = true;
		afe->memif[i].irq_usage = i;
		afe->memif[i].const_irq = 1;
	}

	afe->mtk_afe_hardware = &mt8173_afe_hardware;
	afe->memif_fs = mt8173_memif_fs;
	afe->irq_fs = mt8173_irq_fs;

	platform_set_drvdata(pdev, afe);

	pm_runtime_enable(dev);
	if (!pm_runtime_enabled(dev)) {
		ret = mt8173_afe_runtime_resume(dev);
		if (ret)
			goto err_pm_disable;
	}

	afe->reg_back_up_list = mt8173_afe_backup_list;
	afe->reg_back_up_list_num = ARRAY_SIZE(mt8173_afe_backup_list);
	afe->runtime_resume = mt8173_afe_runtime_resume;
	afe->runtime_suspend = mt8173_afe_runtime_suspend;

	ret = devm_snd_soc_register_component(dev, &mtk_afe_pcm_platform,
					      NULL, 0);
	if (ret)
		goto err_pm_disable;

	comp_pcm = devm_kzalloc(dev, sizeof(*comp_pcm), GFP_KERNEL);
	if (!comp_pcm) {
		ret = -ENOMEM;
		goto err_pm_disable;
	}

	ret = snd_soc_component_initialize(comp_pcm,
					   &mt8173_afe_pcm_dai_component,
					   dev);
	if (ret)
		goto err_pm_disable;

#ifdef CONFIG_DEBUG_FS
	comp_pcm->debugfs_prefix = "pcm";
#endif

	ret = snd_soc_add_component(comp_pcm,
				    mt8173_afe_pcm_dais,
				    ARRAY_SIZE(mt8173_afe_pcm_dais));
	if (ret)
		goto err_pm_disable;

	comp_hdmi = devm_kzalloc(dev, sizeof(*comp_hdmi), GFP_KERNEL);
	if (!comp_hdmi) {
		ret = -ENOMEM;
		goto err_cleanup_components;
	}

	ret = snd_soc_component_initialize(comp_hdmi,
					   &mt8173_afe_hdmi_dai_component,
					   dev);
	if (ret)
		goto err_cleanup_components;

#ifdef CONFIG_DEBUG_FS
	comp_hdmi->debugfs_prefix = "hdmi";
#endif

	ret = snd_soc_add_component(comp_hdmi,
				    mt8173_afe_hdmi_dais,
				    ARRAY_SIZE(mt8173_afe_hdmi_dais));
	if (ret)
		goto err_cleanup_components;

	ret = devm_request_irq(dev, irq_id, mt8173_afe_irq_handler,
			       0, "Afe_ISR_Handle", (void *)afe);
	if (ret) {
		dev_err(dev, "could not request_irq\n");
		goto err_cleanup_components;
	}

	dev_info(dev, "MT8173 AFE driver initialized.\n");
	return 0;

err_cleanup_components:
	snd_soc_unregister_component(dev);
err_pm_disable:
	pm_runtime_disable(dev);
	return ret;
}

static void mt8173_afe_pcm_dev_remove(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;

	snd_soc_unregister_component(dev);

	pm_runtime_disable(dev);
	if (!pm_runtime_status_suspended(dev))
		mt8173_afe_runtime_suspend(dev);
}

static const struct of_device_id mt8173_afe_pcm_dt_match[] = {
	{ .compatible = "mediatek,mt8173-afe-pcm", },
	{ }
};
MODULE_DEVICE_TABLE(of, mt8173_afe_pcm_dt_match);

static const struct dev_pm_ops mt8173_afe_pm_ops = {
	RUNTIME_PM_OPS(mt8173_afe_runtime_suspend,
		       mt8173_afe_runtime_resume, NULL)
};

static struct platform_driver mt8173_afe_pcm_driver = {
	.driver = {
		   .name = "mt8173-afe-pcm",
		   .of_match_table = mt8173_afe_pcm_dt_match,
		   .pm = pm_ptr(&mt8173_afe_pm_ops),
	},
	.probe = mt8173_afe_pcm_dev_probe,
	.remove = mt8173_afe_pcm_dev_remove,
};

module_platform_driver(mt8173_afe_pcm_driver);

MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver");
MODULE_AUTHOR("Koro Chen <[email protected]>");
MODULE_LICENSE("GPL v2");