[mirror_ubuntu-bionic-kernel.git] / sound / soc / codecs / ak4613.c

/*
 * ak4613.c  --  Asahi Kasei ALSA Soc Audio driver
 *
 * Copyright (C) 2015 Renesas Electronics Corporation
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * Based on ak4642.c by Kuninori Morimoto
 * Based on wm8731.c by Richard Purdie
 * Based on ak4535.c by Richard Purdie
 * Based on wm8753.c by Liam Girdwood
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>

#define PW_MGMT1	0x00 /* Power Management 1 */
#define PW_MGMT2	0x01 /* Power Management 2 */
#define PW_MGMT3	0x02 /* Power Management 3 */
#define CTRL1		0x03 /* Control 1 */
#define CTRL2		0x04 /* Control 2 */
#define DEMP1		0x05 /* De-emphasis1 */
#define DEMP2		0x06 /* De-emphasis2 */
#define OFD		0x07 /* Overflow Detect */
#define ZRD		0x08 /* Zero Detect */
#define ICTRL		0x09 /* Input Control */
#define OCTRL		0x0a /* Output Control */
#define LOUT1		0x0b /* LOUT1 Volume Control */
#define ROUT1		0x0c /* ROUT1 Volume Control */
#define LOUT2		0x0d /* LOUT2 Volume Control */
#define ROUT2		0x0e /* ROUT2 Volume Control */
#define LOUT3		0x0f /* LOUT3 Volume Control */
#define ROUT3		0x10 /* ROUT3 Volume Control */
#define LOUT4		0x11 /* LOUT4 Volume Control */
#define ROUT4		0x12 /* ROUT4 Volume Control */
#define LOUT5		0x13 /* LOUT5 Volume Control */
#define ROUT5		0x14 /* ROUT5 Volume Control */
#define LOUT6		0x15 /* LOUT6 Volume Control */
#define ROUT6		0x16 /* ROUT6 Volume Control */

/* PW_MGMT1 */
#define RSTN		BIT(0)
#define PMDAC		BIT(1)
#define PMADC		BIT(2)
#define PMVR		BIT(3)

/* PW_MGMT2 */
#define PMAD_ALL	0x7

/* PW_MGMT3 */
#define PMDA_ALL	0x3f

/* CTRL1 */
#define DIF0		BIT(3)
#define DIF1		BIT(4)
#define DIF2		BIT(5)
#define TDM0		BIT(6)
#define TDM1		BIT(7)
#define NO_FMT		(0xff)
#define FMT_MASK	(0xf8)

/* CTRL2 */
#define DFS_MASK		(3 << 2)
#define DFS_NORMAL_SPEED	(0 << 2)
#define DFS_DOUBLE_SPEED	(1 << 2)
#define DFS_QUAD_SPEED		(2 << 2)

/* ICTRL */
#define ICTRL_MASK	(0x3)

/* OCTRL */
#define OCTRL_MASK	(0x3F)

struct ak4613_formats {
	unsigned int width;
	unsigned int fmt;
};

struct ak4613_interface {
	struct ak4613_formats capture;
	struct ak4613_formats playback;
};

struct ak4613_priv {
	struct mutex lock;
	const struct ak4613_interface *iface;
	struct snd_pcm_hw_constraint_list constraint;
	unsigned int sysclk;

	unsigned int fmt;
	u8 oc;
	u8 ic;
	int cnt;
};

/*
 * Playback Volume
 *
 * max : 0x00 : 0 dB
 *       ( 0.5 dB step )
 * min : 0xFE : -127.0 dB
 * mute: 0xFF
 */
static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);

static const struct snd_kcontrol_new ak4613_snd_controls[] = {
	SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
			 0, 0xFF, 1, out_tlv),
	SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
			 0, 0xFF, 1, out_tlv),
};

static const struct reg_default ak4613_reg[] = {
	{ 0x0,  0x0f }, { 0x1,  0x07 }, { 0x2,  0x3f }, { 0x3,  0x20 },
	{ 0x4,  0x20 }, { 0x5,  0x55 }, { 0x6,  0x05 }, { 0x7,  0x07 },
	{ 0x8,  0x0f }, { 0x9,  0x07 }, { 0xa,  0x3f }, { 0xb,  0x00 },
	{ 0xc,  0x00 }, { 0xd,  0x00 }, { 0xe,  0x00 }, { 0xf,  0x00 },
	{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
	{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
};

#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
static const struct ak4613_interface ak4613_iface[] = {
	/* capture */				/* playback */
	/* [0] - [2] are not supported */
	[3] = {	AUDIO_IFACE(24, LEFT_J),	AUDIO_IFACE(24, LEFT_J) },
	[4] = {	AUDIO_IFACE(24, I2S),		AUDIO_IFACE(24, I2S) },
};

static const struct regmap_config ak4613_regmap_cfg = {
	.reg_bits		= 8,
	.val_bits		= 8,
	.max_register		= 0x16,
	.reg_defaults		= ak4613_reg,
	.num_reg_defaults	= ARRAY_SIZE(ak4613_reg),
	.cache_type		= REGCACHE_RBTREE,
};

static const struct of_device_id ak4613_of_match[] = {
	{ .compatible = "asahi-kasei,ak4613",	.data = &ak4613_regmap_cfg },
	{},
};
MODULE_DEVICE_TABLE(of, ak4613_of_match);

static const struct i2c_device_id ak4613_i2c_id[] = {
	{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);

static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {

	/* Outputs */
	SND_SOC_DAPM_OUTPUT("LOUT1"),
	SND_SOC_DAPM_OUTPUT("LOUT2"),
	SND_SOC_DAPM_OUTPUT("LOUT3"),
	SND_SOC_DAPM_OUTPUT("LOUT4"),
	SND_SOC_DAPM_OUTPUT("LOUT5"),
	SND_SOC_DAPM_OUTPUT("LOUT6"),

	SND_SOC_DAPM_OUTPUT("ROUT1"),
	SND_SOC_DAPM_OUTPUT("ROUT2"),
	SND_SOC_DAPM_OUTPUT("ROUT3"),
	SND_SOC_DAPM_OUTPUT("ROUT4"),
	SND_SOC_DAPM_OUTPUT("ROUT5"),
	SND_SOC_DAPM_OUTPUT("ROUT6"),

	/* Inputs */
	SND_SOC_DAPM_INPUT("LIN1"),
	SND_SOC_DAPM_INPUT("LIN2"),

	SND_SOC_DAPM_INPUT("RIN1"),
	SND_SOC_DAPM_INPUT("RIN2"),

	/* DAC */
	SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
	SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
	SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
	SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
	SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
	SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),

	/* ADC */
	SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
	SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
};

static const struct snd_soc_dapm_route ak4613_intercon[] = {
	{"LOUT1", NULL, "DAC1"},
	{"LOUT2", NULL, "DAC2"},
	{"LOUT3", NULL, "DAC3"},
	{"LOUT4", NULL, "DAC4"},
	{"LOUT5", NULL, "DAC5"},
	{"LOUT6", NULL, "DAC6"},

	{"ROUT1", NULL, "DAC1"},
	{"ROUT2", NULL, "DAC2"},
	{"ROUT3", NULL, "DAC3"},
	{"ROUT4", NULL, "DAC4"},
	{"ROUT5", NULL, "DAC5"},
	{"ROUT6", NULL, "DAC6"},

	{"DAC1", NULL, "Playback"},
	{"DAC2", NULL, "Playback"},
	{"DAC3", NULL, "Playback"},
	{"DAC4", NULL, "Playback"},
	{"DAC5", NULL, "Playback"},
	{"DAC6", NULL, "Playback"},

	{"Capture", NULL, "ADC1"},
	{"Capture", NULL, "ADC2"},

	{"ADC1", NULL, "LIN1"},
	{"ADC2", NULL, "LIN2"},

	{"ADC1", NULL, "RIN1"},
	{"ADC2", NULL, "RIN2"},
};

static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	struct device *dev = codec->dev;

	mutex_lock(&priv->lock);
	priv->cnt--;
	if (priv->cnt < 0) {
		dev_err(dev, "unexpected counter error\n");
		priv->cnt = 0;
	}
	if (!priv->cnt)
		priv->iface = NULL;
	mutex_unlock(&priv->lock);
}

static void ak4613_hw_constraints(struct ak4613_priv *priv,
				  struct snd_pcm_runtime *runtime)
{
	static const unsigned int ak4613_rates[] = {
		 32000,
		 44100,
		 48000,
		 64000,
		 88200,
		 96000,
		176400,
		192000,
	};
	struct snd_pcm_hw_constraint_list *constraint = &priv->constraint;
	unsigned int fs;
	int i;

	constraint->list	= ak4613_rates;
	constraint->mask	= 0;
	constraint->count	= 0;

	/*
	 * Slave Mode
	 *	Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs
	 *	Double: [64kHz, 96kHz] : 256fs
	 *	Quad  : [128kHz,192kHz]: 128fs
	 *
	 * Master mode
	 *	Normal: [32kHz, 48kHz] : 256fs or 512fs
	 *	Double: [64kHz, 96kHz] : 256fs
	 *	Quad  : [128kHz,192kHz]: 128fs
	*/
	for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) {
		/* minimum fs on each range */
		fs = (ak4613_rates[i] <= 96000) ? 256 : 128;

		if (priv->sysclk >= ak4613_rates[i] * fs)
			constraint->count = i + 1;
	}

	snd_pcm_hw_constraint_list(runtime, 0,
				SNDRV_PCM_HW_PARAM_RATE, constraint);
}

static int ak4613_dai_startup(struct snd_pcm_substream *substream,
			      struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);

	priv->cnt++;

	ak4613_hw_constraints(priv, substream->runtime);

	return 0;
}

static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai,
				 int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);

	priv->sysclk = freq;

	return 0;
}

static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);

	fmt &= SND_SOC_DAIFMT_FORMAT_MASK;

	switch (fmt) {
	case SND_SOC_DAIFMT_LEFT_J:
	case SND_SOC_DAIFMT_I2S:
		priv->fmt = fmt;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
				    int is_play,
				    unsigned int fmt, unsigned int width)
{
	const struct ak4613_formats *fmts;

	fmts = (is_play) ? &iface->playback : &iface->capture;

	if (fmts->fmt != fmt)
		return false;

	if (fmts->width != width)
		return false;

	return true;
}

static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	const struct ak4613_interface *iface;
	struct device *dev = codec->dev;
	unsigned int width = params_width(params);
	unsigned int fmt = priv->fmt;
	unsigned int rate;
	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	int i, ret;
	u8 fmt_ctrl, ctrl2;

	rate = params_rate(params);
	switch (rate) {
	case 32000:
	case 44100:
	case 48000:
		ctrl2 = DFS_NORMAL_SPEED;
		break;
	case 64000:
	case 88200:
	case 96000:
		ctrl2 = DFS_DOUBLE_SPEED;
		break;
	case 176400:
	case 192000:
		ctrl2 = DFS_QUAD_SPEED;
		break;
	default:
		return -EINVAL;
	}

	/*
	 * FIXME
	 *
	 * It doesn't support TDM at this point
	 */
	fmt_ctrl = NO_FMT;
	ret = -EINVAL;
	iface = NULL;

	mutex_lock(&priv->lock);
	if (priv->iface) {
		if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
			iface = priv->iface;
	} else {
		for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) {
			if (!ak4613_dai_fmt_matching(ak4613_iface + i,
						     is_play,
						     fmt, width))
				continue;
			iface = ak4613_iface + i;
			break;
		}
	}

	if ((priv->iface == NULL) ||
	    (priv->iface == iface)) {
		priv->iface = iface;
		ret = 0;
	}
	mutex_unlock(&priv->lock);

	if (ret < 0)
		goto hw_params_end;

	fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);

	snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
	snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);

	snd_soc_update_bits(codec, ICTRL, ICTRL_MASK, priv->ic);
	snd_soc_update_bits(codec, OCTRL, OCTRL_MASK, priv->oc);

hw_params_end:
	if (ret < 0)
		dev_warn(dev, "unsupported data width/format combination\n");

	return ret;
}

static int ak4613_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	u8 mgmt1 = 0;

	switch (level) {
	case SND_SOC_BIAS_ON:
		mgmt1 |= RSTN;
		/* fall through */
	case SND_SOC_BIAS_PREPARE:
		mgmt1 |= PMADC | PMDAC;
		/* fall through */
	case SND_SOC_BIAS_STANDBY:
		mgmt1 |= PMVR;
		/* fall through */
	case SND_SOC_BIAS_OFF:
	default:
		break;
	}

	snd_soc_write(codec, PW_MGMT1, mgmt1);

	return 0;
}

static const struct snd_soc_dai_ops ak4613_dai_ops = {
	.startup	= ak4613_dai_startup,
	.shutdown	= ak4613_dai_shutdown,
	.set_sysclk	= ak4613_dai_set_sysclk,
	.set_fmt	= ak4613_dai_set_fmt,
	.hw_params	= ak4613_dai_hw_params,
};

#define AK4613_PCM_RATE		(SNDRV_PCM_RATE_32000  |\
				 SNDRV_PCM_RATE_44100  |\
				 SNDRV_PCM_RATE_48000  |\
				 SNDRV_PCM_RATE_64000  |\
				 SNDRV_PCM_RATE_88200  |\
				 SNDRV_PCM_RATE_96000  |\
				 SNDRV_PCM_RATE_176400 |\
				 SNDRV_PCM_RATE_192000)
#define AK4613_PCM_FMTBIT	(SNDRV_PCM_FMTBIT_S24_LE)

static struct snd_soc_dai_driver ak4613_dai = {
	.name = "ak4613-hifi",
	.playback = {
		.stream_name	= "Playback",
		.channels_min	= 2,
		.channels_max	= 2,
		.rates		= AK4613_PCM_RATE,
		.formats	= AK4613_PCM_FMTBIT,
	},
	.capture = {
		.stream_name	= "Capture",
		.channels_min	= 2,
		.channels_max	= 2,
		.rates		= AK4613_PCM_RATE,
		.formats	= AK4613_PCM_FMTBIT,
	},
	.ops = &ak4613_dai_ops,
	.symmetric_rates = 1,
};

static int ak4613_suspend(struct snd_soc_codec *codec)
{
	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);

	regcache_cache_only(regmap, true);
	regcache_mark_dirty(regmap);
	return 0;
}

static int ak4613_resume(struct snd_soc_codec *codec)
{
	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);

	regcache_cache_only(regmap, false);
	return regcache_sync(regmap);
}

static const struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
	.suspend		= ak4613_suspend,
	.resume			= ak4613_resume,
	.set_bias_level		= ak4613_set_bias_level,
	.component_driver = {
		.controls		= ak4613_snd_controls,
		.num_controls		= ARRAY_SIZE(ak4613_snd_controls),
		.dapm_widgets		= ak4613_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(ak4613_dapm_widgets),
		.dapm_routes		= ak4613_intercon,
		.num_dapm_routes	= ARRAY_SIZE(ak4613_intercon),
	},
};

static void ak4613_parse_of(struct ak4613_priv *priv,
			    struct device *dev)
{
	struct device_node *np = dev->of_node;
	char prop[32];
	int i;

	/* Input 1 - 2 */
	for (i = 0; i < 2; i++) {
		snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
		if (!of_get_property(np, prop, NULL))
			priv->ic |= 1 << i;
	}

	/* Output 1 - 6 */
	for (i = 0; i < 6; i++) {
		snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
		if (!of_get_property(np, prop, NULL))
			priv->oc |= 1 << i;
	}
}

static int ak4613_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct device *dev = &i2c->dev;
	struct device_node *np = dev->of_node;
	const struct regmap_config *regmap_cfg;
	struct regmap *regmap;
	struct ak4613_priv *priv;

	regmap_cfg = NULL;
	if (np) {
		const struct of_device_id *of_id;

		of_id = of_match_device(ak4613_of_match, dev);
		if (of_id)
			regmap_cfg = of_id->data;
	} else {
		regmap_cfg = (const struct regmap_config *)id->driver_data;
	}

	if (!regmap_cfg)
		return -EINVAL;

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

	ak4613_parse_of(priv, dev);

	priv->iface		= NULL;
	priv->cnt		= 0;
	priv->sysclk		= 0;

	mutex_init(&priv->lock);

	i2c_set_clientdata(i2c, priv);

	regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
				      &ak4613_dai, 1);
}

static int ak4613_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	return 0;
}

static struct i2c_driver ak4613_i2c_driver = {
	.driver = {
		.name = "ak4613-codec",
		.of_match_table = ak4613_of_match,
	},
	.probe		= ak4613_i2c_probe,
	.remove		= ak4613_i2c_remove,
	.id_table	= ak4613_i2c_id,
};

module_i2c_driver(ak4613_i2c_driver);

MODULE_DESCRIPTION("Soc AK4613 driver");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
b0757062 KM	1	/*
	2	* ak4613.c -- Asahi Kasei ALSA Soc Audio driver
	3	*
	4	* Copyright (C) 2015 Renesas Electronics Corporation
	5	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	6	*
	7	* Based on ak4642.c by Kuninori Morimoto
	8	* Based on wm8731.c by Richard Purdie
	9	* Based on ak4535.c by Richard Purdie
	10	* Based on wm8753.c by Liam Girdwood
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License version 2 as
	14	* published by the Free Software Foundation.
	15	*/
	16
	17	#include <linux/clk.h>
	18	#include <linux/i2c.h>
	19	#include <linux/slab.h>
	20	#include <linux/of_device.h>
	21	#include <linux/module.h>
	22	#include <linux/regmap.h>
	23	#include <sound/soc.h>
	24	#include <sound/pcm_params.h>
e3a4d958	25	#include <sound/tlv.h>
b0757062 KM	26
	27	#define PW_MGMT1 0x00 /* Power Management 1 */
	28	#define PW_MGMT2 0x01 /* Power Management 2 */
	29	#define PW_MGMT3 0x02 /* Power Management 3 */
	30	#define CTRL1 0x03 /* Control 1 */
	31	#define CTRL2 0x04 /* Control 2 */
	32	#define DEMP1 0x05 /* De-emphasis1 */
	33	#define DEMP2 0x06 /* De-emphasis2 */
	34	#define OFD 0x07 /* Overflow Detect */
	35	#define ZRD 0x08 /* Zero Detect */
	36	#define ICTRL 0x09 /* Input Control */
	37	#define OCTRL 0x0a /* Output Control */
	38	#define LOUT1 0x0b /* LOUT1 Volume Control */
	39	#define ROUT1 0x0c /* ROUT1 Volume Control */
	40	#define LOUT2 0x0d /* LOUT2 Volume Control */
	41	#define ROUT2 0x0e /* ROUT2 Volume Control */
	42	#define LOUT3 0x0f /* LOUT3 Volume Control */
	43	#define ROUT3 0x10 /* ROUT3 Volume Control */
	44	#define LOUT4 0x11 /* LOUT4 Volume Control */
	45	#define ROUT4 0x12 /* ROUT4 Volume Control */
	46	#define LOUT5 0x13 /* LOUT5 Volume Control */
	47	#define ROUT5 0x14 /* ROUT5 Volume Control */
	48	#define LOUT6 0x15 /* LOUT6 Volume Control */
	49	#define ROUT6 0x16 /* ROUT6 Volume Control */
	50
	51	/* PW_MGMT1 */
	52	#define RSTN BIT(0)
	53	#define PMDAC BIT(1)
	54	#define PMADC BIT(2)
	55	#define PMVR BIT(3)
	56
	57	/* PW_MGMT2 */
	58	#define PMAD_ALL 0x7
	59
	60	/* PW_MGMT3 */
	61	#define PMDA_ALL 0x3f
	62
	63	/* CTRL1 */
	64	#define DIF0 BIT(3)
	65	#define DIF1 BIT(4)
	66	#define DIF2 BIT(5)
	67	#define TDM0 BIT(6)
	68	#define TDM1 BIT(7)
	69	#define NO_FMT (0xff)
	70	#define FMT_MASK (0xf8)
	71
	72	/* CTRL2 */
b323dd30	73	#define DFS_MASK (3 << 2)
b0757062 KM	74	#define DFS_NORMAL_SPEED (0 << 2)
	75	#define DFS_DOUBLE_SPEED (1 << 2)
	76	#define DFS_QUAD_SPEED (2 << 2)
	77
4898b61e KM	78	/* ICTRL */
	79	#define ICTRL_MASK (0x3)
	80
	81	/* OCTRL */
	82	#define OCTRL_MASK (0x3F)
	83
b0757062 KM	84	struct ak4613_formats {
	85	unsigned int width;
	86	unsigned int fmt;
	87	};
	88
	89	struct ak4613_interface {
	90	struct ak4613_formats capture;
	91	struct ak4613_formats playback;
	92	};
	93
35299f17 KM	94	struct ak4613_priv {
	95	struct mutex lock;
	96	const struct ak4613_interface *iface;
907cd880 KM	97	struct snd_pcm_hw_constraint_list constraint;
907cd880 KM	98	unsigned int sysclk;
35299f17 KM	99
	100	unsigned int fmt;
	101	u8 oc;
	102	u8 ic;
	103	int cnt;
	104	};
	105
e3a4d958 KM	106	/*
	107	* Playback Volume
	108	*
	109	* max : 0x00 : 0 dB
	110	* ( 0.5 dB step )
	111	* min : 0xFE : -127.0 dB
	112	* mute: 0xFF
	113	*/
	114	static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
	115
	116	static const struct snd_kcontrol_new ak4613_snd_controls[] = {
	117	SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
	118	0, 0xFF, 1, out_tlv),
	119	SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
	120	0, 0xFF, 1, out_tlv),
	121	SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
	122	0, 0xFF, 1, out_tlv),
	123	SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
	124	0, 0xFF, 1, out_tlv),
	125	SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
	126	0, 0xFF, 1, out_tlv),
	127	SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
	128	0, 0xFF, 1, out_tlv),
	129	};
	130
b0757062 KM	131	static const struct reg_default ak4613_reg[] = {
	132	{ 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
	133	{ 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
	134	{ 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
	135	{ 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
	136	{ 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
	137	{ 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
	138	};
	139
35299f17	140	#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
b0757062 KM	141	#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
	142	static const struct ak4613_interface ak4613_iface[] = {
	143	/* capture / / playback */
ec185f95	144	/* [0] - [2] are not supported */
b0757062 KM	145	[3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
	146	[4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
	147	};
	148
	149	static const struct regmap_config ak4613_regmap_cfg = {
	150	.reg_bits = 8,
	151	.val_bits = 8,
	152	.max_register = 0x16,
	153	.reg_defaults = ak4613_reg,
	154	.num_reg_defaults = ARRAY_SIZE(ak4613_reg),
dcd2d1f7	155	.cache_type = REGCACHE_RBTREE,
b0757062 KM	156	};
	157
	158	static const struct of_device_id ak4613_of_match[] = {
	159	{ .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
	160	{},
	161	};
	162	MODULE_DEVICE_TABLE(of, ak4613_of_match);
	163
	164	static const struct i2c_device_id ak4613_i2c_id[] = {
	165	{ "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
	166	{ }
	167	};
	168	MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
	169
	170	static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
	171
	172	/* Outputs */
	173	SND_SOC_DAPM_OUTPUT("LOUT1"),
	174	SND_SOC_DAPM_OUTPUT("LOUT2"),
	175	SND_SOC_DAPM_OUTPUT("LOUT3"),
	176	SND_SOC_DAPM_OUTPUT("LOUT4"),
	177	SND_SOC_DAPM_OUTPUT("LOUT5"),
	178	SND_SOC_DAPM_OUTPUT("LOUT6"),
	179
	180	SND_SOC_DAPM_OUTPUT("ROUT1"),
	181	SND_SOC_DAPM_OUTPUT("ROUT2"),
	182	SND_SOC_DAPM_OUTPUT("ROUT3"),
	183	SND_SOC_DAPM_OUTPUT("ROUT4"),
	184	SND_SOC_DAPM_OUTPUT("ROUT5"),
	185	SND_SOC_DAPM_OUTPUT("ROUT6"),
	186
	187	/* Inputs */
	188	SND_SOC_DAPM_INPUT("LIN1"),
	189	SND_SOC_DAPM_INPUT("LIN2"),
	190
	191	SND_SOC_DAPM_INPUT("RIN1"),
	192	SND_SOC_DAPM_INPUT("RIN2"),
	193
	194	/* DAC */
	195	SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
	196	SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
	197	SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
	198	SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
	199	SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
	200	SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
	201
	202	/* ADC */
	203	SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
	204	SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
	205	};
	206
	207	static const struct snd_soc_dapm_route ak4613_intercon[] = {
	208	{"LOUT1", NULL, "DAC1"},
	209	{"LOUT2", NULL, "DAC2"},
	210	{"LOUT3", NULL, "DAC3"},
	211	{"LOUT4", NULL, "DAC4"},
	212	{"LOUT5", NULL, "DAC5"},
	213	{"LOUT6", NULL, "DAC6"},
	214
	215	{"ROUT1", NULL, "DAC1"},
	216	{"ROUT2", NULL, "DAC2"},
	217	{"ROUT3", NULL, "DAC3"},
	218	{"ROUT4", NULL, "DAC4"},
	219	{"ROUT5", NULL, "DAC5"},
220	{"ROUT6", NULL, "DAC6"},
221
222	{"DAC1", NULL, "Playback"},
223	{"DAC2", NULL, "Playback"},
224	{"DAC3", NULL, "Playback"},
225	{"DAC4", NULL, "Playback"},
226	{"DAC5", NULL, "Playback"},
227	{"DAC6", NULL, "Playback"},
228
229	{"Capture", NULL, "ADC1"},
230	{"Capture", NULL, "ADC2"},
231
232	{"ADC1", NULL, "LIN1"},
233	{"ADC2", NULL, "LIN2"},
234
235	{"ADC1", NULL, "RIN1"},
236	{"ADC2", NULL, "RIN2"},
237	};
238
239	static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
240	struct snd_soc_dai *dai)
241	{
242	struct snd_soc_codec *codec = dai->codec;
243	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
244	struct device *dev = codec->dev;
245
246	mutex_lock(&priv->lock);
247	priv->cnt--;
248	if (priv->cnt < 0) {
249	dev_err(dev, "unexpected counter error\n");
250	priv->cnt = 0;
251	}
252	if (!priv->cnt)
35299f17	253	priv->iface = NULL;
b0757062 KM	254	mutex_unlock(&priv->lock);
	255	}
	256
907cd880 KM	257	static void ak4613_hw_constraints(struct ak4613_priv *priv,
	258	struct snd_pcm_runtime *runtime)
	259	{
	260	static const unsigned int ak4613_rates[] = {
	261	32000,
	262	44100,
	263	48000,
	264	64000,
	265	88200,
	266	96000,
	267	176400,
	268	192000,
	269	};
	270	struct snd_pcm_hw_constraint_list *constraint = &priv->constraint;
	271	unsigned int fs;
	272	int i;
	273
	274	constraint->list = ak4613_rates;
	275	constraint->mask = 0;
	276	constraint->count = 0;
	277
	278	/*
	279	* Slave Mode
	280	* Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs
	281	* Double: [64kHz, 96kHz] : 256fs
	282	* Quad : [128kHz,192kHz]: 128fs
	283	*
	284	* Master mode
	285	* Normal: [32kHz, 48kHz] : 256fs or 512fs
	286	* Double: [64kHz, 96kHz] : 256fs
	287	* Quad : [128kHz,192kHz]: 128fs
	288	*/
	289	for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) {
	290	/* minimum fs on each range */
	291	fs = (ak4613_rates[i] <= 96000) ? 256 : 128;
	292
	293	if (priv->sysclk >= ak4613_rates[i] * fs)
	294	constraint->count = i + 1;
	295	}
	296
	297	snd_pcm_hw_constraint_list(runtime, 0,
	298	SNDRV_PCM_HW_PARAM_RATE, constraint);
	299	}
	300
41165298 RK	301	static int ak4613_dai_startup(struct snd_pcm_substream *substream,
	302	struct snd_soc_dai *dai)
	303	{
	304	struct snd_soc_codec *codec = dai->codec;
	305	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	306
	307	priv->cnt++;
	308
907cd880 KM	309	ak4613_hw_constraints(priv, substream->runtime);
	310
	311	return 0;
	312	}
	313
	314	static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai,
	315	int clk_id, unsigned int freq, int dir)
	316	{
	317	struct snd_soc_codec *codec = codec_dai->codec;
	318	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	319
	320	priv->sysclk = freq;
	321
41165298 RK	322	return 0;
	323	}
	324
b0757062 KM	325	static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
	326	{
	327	struct snd_soc_codec *codec = dai->codec;
	328	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
	329
	330	fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
	331
	332	switch (fmt) {
b0757062 KM	333	case SND_SOC_DAIFMT_LEFT_J:
	334	case SND_SOC_DAIFMT_I2S:
	335	priv->fmt = fmt;
b0757062 KM	336	break;
	337	default:
	338	return -EINVAL;
	339	}
	340
	341	return 0;
	342	}
	343
35299f17 KM	344	static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
	345	int is_play,
	346	unsigned int fmt, unsigned int width)
	347	{
	348	const struct ak4613_formats *fmts;
	349
	350	fmts = (is_play) ? &iface->playback : &iface->capture;
	351
	352	if (fmts->fmt != fmt)
	353	return false;
	354
ec185f95 KM	355	if (fmts->width != width)
ec185f95 KM	356	return false;
35299f17 KM	357
	358	return true;
	359	}
	360
b0757062 KM	361	static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
	362	struct snd_pcm_hw_params *params,
	363	struct snd_soc_dai *dai)
	364	{
	365	struct snd_soc_codec *codec = dai->codec;
	366	struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
35299f17	367	const struct ak4613_interface *iface;
b0757062 KM	368	struct device *dev = codec->dev;
	369	unsigned int width = params_width(params);
	370	unsigned int fmt = priv->fmt;
	371	unsigned int rate;
	372	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
	373	int i, ret;
	374	u8 fmt_ctrl, ctrl2;
	375
	376	rate = params_rate(params);
	377	switch (rate) {
	378	case 32000:
	379	case 44100:
	380	case 48000:
	381	ctrl2 = DFS_NORMAL_SPEED;
	382	break;
a83ac486	383	case 64000:
b0757062 KM	384	case 88200:
	385	case 96000:
	386	ctrl2 = DFS_DOUBLE_SPEED;
	387	break;
	388	case 176400:
	389	case 192000:
	390	ctrl2 = DFS_QUAD_SPEED;
	391	break;
	392	default:
	393	return -EINVAL;
	394	}
	395
	396	/*
	397	* FIXME
	398	*
	399	* It doesn't support TDM at this point
	400	*/
	401	fmt_ctrl = NO_FMT;
35299f17 KM	402	ret = -EINVAL;
35299f17 KM	403	iface = NULL;
b0757062	404
35299f17 KM	405	mutex_lock(&priv->lock);
	406	if (priv->iface) {
	407	if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
	408	iface = priv->iface;
	409	} else {
b5f2a487	410	for (i = ARRAY_SIZE(ak4613_iface) - 1; i >= 0; i--) {
35299f17 KM	411	if (!ak4613_dai_fmt_matching(ak4613_iface + i,
	412	is_play,
	413	fmt, width))
b0757062	414	continue;
35299f17 KM	415	iface = ak4613_iface + i;
35299f17 KM	416	break;
b0757062	417	}
b0757062 KM	418	}
b0757062 KM	419
35299f17 KM	420	if ((priv->iface == NULL) \|\|
	421	(priv->iface == iface)) {
	422	priv->iface = iface;
b0757062 KM	423	ret = 0;
	424	}
	425	mutex_unlock(&priv->lock);
	426
	427	if (ret < 0)
	428	goto hw_params_end;
	429
35299f17 KM	430	fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);
35299f17 KM	431
b0757062	432	snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
b323dd30	433	snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
b0757062	434
4898b61e KM	435	snd_soc_update_bits(codec, ICTRL, ICTRL_MASK, priv->ic);
4898b61e KM	436	snd_soc_update_bits(codec, OCTRL, OCTRL_MASK, priv->oc);
a3af0c65	437
b0757062 KM	438	hw_params_end:
	439	if (ret < 0)
	440	dev_warn(dev, "unsupported data width/format combination\n");
	441
	442	return ret;
	443	}
	444
	445	static int ak4613_set_bias_level(struct snd_soc_codec *codec,
	446	enum snd_soc_bias_level level)
	447	{
	448	u8 mgmt1 = 0;
	449
	450	switch (level) {
	451	case SND_SOC_BIAS_ON:
	452	mgmt1 \|= RSTN;
	453	/* fall through */
	454	case SND_SOC_BIAS_PREPARE:
	455	mgmt1 \|= PMADC \| PMDAC;
	456	/* fall through */
	457	case SND_SOC_BIAS_STANDBY:
	458	mgmt1 \|= PMVR;
	459	/* fall through */
	460	case SND_SOC_BIAS_OFF:
	461	default:
	462	break;
	463	}
	464
	465	snd_soc_write(codec, PW_MGMT1, mgmt1);
	466
	467	return 0;
	468	}
	469
	470	static const struct snd_soc_dai_ops ak4613_dai_ops = {
41165298	471	.startup = ak4613_dai_startup,
b0757062	472	.shutdown = ak4613_dai_shutdown,
907cd880	473	.set_sysclk = ak4613_dai_set_sysclk,
b0757062 KM	474	.set_fmt = ak4613_dai_set_fmt,
	475	.hw_params = ak4613_dai_hw_params,
	476	};
	477
	478	#define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 \|\
	479	SNDRV_PCM_RATE_44100 \|\
	480	SNDRV_PCM_RATE_48000 \|\
	481	SNDRV_PCM_RATE_64000 \|\
	482	SNDRV_PCM_RATE_88200 \|\
	483	SNDRV_PCM_RATE_96000 \|\
	484	SNDRV_PCM_RATE_176400 \|\
	485	SNDRV_PCM_RATE_192000)
ec185f95	486	#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE)
b0757062 KM	487
	488	static struct snd_soc_dai_driver ak4613_dai = {
	489	.name = "ak4613-hifi",
	490	.playback = {
	491	.stream_name = "Playback",
	492	.channels_min = 2,
	493	.channels_max = 2,
	494	.rates = AK4613_PCM_RATE,
	495	.formats = AK4613_PCM_FMTBIT,
	496	},
	497	.capture = {
	498	.stream_name = "Capture",
	499	.channels_min = 2,
	500	.channels_max = 2,
	501	.rates = AK4613_PCM_RATE,
	502	.formats = AK4613_PCM_FMTBIT,
	503	},
	504	.ops = &ak4613_dai_ops,
	505	.symmetric_rates = 1,
	506	};
	507
f9ae17ba	508	static int ak4613_suspend(struct snd_soc_codec *codec)
b0757062 KM	509	{
	510	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
	511
f9ae17ba	512	regcache_cache_only(regmap, true);
b0757062	513	regcache_mark_dirty(regmap);
f9ae17ba GU	514	return 0;
	515	}
	516
	517	static int ak4613_resume(struct snd_soc_codec *codec)
	518	{
	519	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
	520
	521	regcache_cache_only(regmap, false);
b0757062 KM	522	return regcache_sync(regmap);
	523	}
	524
a180ba45	525	static const struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
f9ae17ba	526	.suspend = ak4613_suspend,
b0757062 KM	527	.resume = ak4613_resume,
b0757062 KM	528	.set_bias_level = ak4613_set_bias_level,
beb84f75 KM	529	.component_driver = {
	530	.controls = ak4613_snd_controls,
	531	.num_controls = ARRAY_SIZE(ak4613_snd_controls),
	532	.dapm_widgets = ak4613_dapm_widgets,
	533	.num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
	534	.dapm_routes = ak4613_intercon,
	535	.num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
	536	},
b0757062 KM	537	};
b0757062 KM	538
a3af0c65 KM	539	static void ak4613_parse_of(struct ak4613_priv *priv,
	540	struct device *dev)
	541	{
	542	struct device_node *np = dev->of_node;
	543	char prop[32];
	544	int i;
	545
	546	/* Input 1 - 2 */
	547	for (i = 0; i < 2; i++) {
5547ba61	548	snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
a3af0c65 KM	549	if (!of_get_property(np, prop, NULL))
	550	priv->ic \|= 1 << i;
	551	}
	552
	553	/* Output 1 - 6 */
	554	for (i = 0; i < 6; i++) {
5547ba61	555	snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
a3af0c65 KM	556	if (!of_get_property(np, prop, NULL))
	557	priv->oc \|= 1 << i;
	558	}
	559	}
	560
b0757062 KM	561	static int ak4613_i2c_probe(struct i2c_client *i2c,
	562	const struct i2c_device_id *id)
	563	{
	564	struct device *dev = &i2c->dev;
	565	struct device_node *np = dev->of_node;
	566	const struct regmap_config *regmap_cfg;
	567	struct regmap *regmap;
	568	struct ak4613_priv *priv;
	569
	570	regmap_cfg = NULL;
	571	if (np) {
	572	const struct of_device_id *of_id;
	573
	574	of_id = of_match_device(ak4613_of_match, dev);
	575	if (of_id)
	576	regmap_cfg = of_id->data;
	577	} else {
	578	regmap_cfg = (const struct regmap_config *)id->driver_data;
	579	}
	580
	581	if (!regmap_cfg)
	582	return -EINVAL;
	583
	584	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	585	if (!priv)
	586	return -ENOMEM;
	587
a3af0c65 KM	588	ak4613_parse_of(priv, dev);
a3af0c65 KM	589
35299f17	590	priv->iface = NULL;
b0757062	591	priv->cnt = 0;
907cd880	592	priv->sysclk = 0;
b0757062 KM	593
	594	mutex_init(&priv->lock);
	595
	596	i2c_set_clientdata(i2c, priv);
	597
	598	regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
	599	if (IS_ERR(regmap))
	600	return PTR_ERR(regmap);
	601
	602	return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
	603	&ak4613_dai, 1);
	604	}
	605
	606	static int ak4613_i2c_remove(struct i2c_client *client)
	607	{
	608	snd_soc_unregister_codec(&client->dev);
	609	return 0;
	610	}
	611
	612	static struct i2c_driver ak4613_i2c_driver = {
	613	.driver = {
	614	.name = "ak4613-codec",
b0757062 KM	615	.of_match_table = ak4613_of_match,
	616	},
	617	.probe = ak4613_i2c_probe,
	618	.remove = ak4613_i2c_remove,
	619	.id_table = ak4613_i2c_id,
	620	};
	621
	622	module_i2c_driver(ak4613_i2c_driver);
	623
	624	MODULE_DESCRIPTION("Soc AK4613 driver");
	625	MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
	626	MODULE_LICENSE("GPL v2");