sound/soc/sh/rcar/gen.c - kernel/bruno - Git at Google

 /*
  * Renesas R-Car Gen1 SRU/SSI support
  *
  * Copyright (C) 2013 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  *
  * 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.
  */

 /*
  * #define DEBUG
  *
  * you can also add below in
  * ${LINUX}/drivers/base/regmap/regmap.c
  * for regmap debug
  *
  * #define LOG_DEVICE "xxxx.rcar_sound"
  */

 #include "rsnd.h"

 struct rsnd_gen {
 	struct rsnd_gen_ops *ops;

 	/* RSND_BASE_MAX base */
 	void __iomem *base[RSND_BASE_MAX];
 	phys_addr_t res[RSND_BASE_MAX];
 	struct regmap *regmap[RSND_BASE_MAX];

 	/* RSND_REG_MAX base */
 	struct regmap_field *regs[RSND_REG_MAX];
 };

 #define rsnd_priv_to_gen(p)	((struct rsnd_gen *)(p)->gen)

 struct rsnd_regmap_field_conf {
 	int idx;
 	unsigned int reg_offset;
 	unsigned int id_offset;
 };

 #define RSND_REG_SET(id, offset, _id_offset)	\
 {						\
 	.idx = id,				\
 	.reg_offset = offset,			\
 	.id_offset = _id_offset,		\
 }
 /* single address mapping */
 #define RSND_GEN_S_REG(id, offset)	\
 	RSND_REG_SET(RSND_REG_##id, offset, 0)

 /* multi address mapping */
 #define RSND_GEN_M_REG(id, offset, _id_offset)	\
 	RSND_REG_SET(RSND_REG_##id, offset, _id_offset)

 /*
  *		basic function
  */
 static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
 				  struct rsnd_gen *gen, enum rsnd_reg reg)
 {
 	if (!gen->regs[reg]) {
 		struct device *dev = rsnd_priv_to_dev(priv);

 		dev_err(dev, "unsupported register access %x\n", reg);
 		return 0;
 	}

 	return 1;
 }

 u32 rsnd_read(struct rsnd_priv *priv,
 	      struct rsnd_mod *mod, enum rsnd_reg reg)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
 	u32 val;

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return 0;

 	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);

 	dev_dbg(dev, "r %s[%d] - %4d : %08x\n",
 		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val);

 	return val;
 }

 void rsnd_write(struct rsnd_priv *priv,
 		struct rsnd_mod *mod,
 		enum rsnd_reg reg, u32 data)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return;

 	dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
 		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);

 	regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
 }

 void rsnd_force_write(struct rsnd_priv *priv,
 		      struct rsnd_mod *mod,
 		      enum rsnd_reg reg, u32 data)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return;

 	dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
 		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);

 	regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data);
 }

 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
 	       enum rsnd_reg reg, u32 mask, u32 data)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return;

 	dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n",
 		rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask);

 	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
 				  mask, data);
 }

 phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
 {
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	return	gen->res[reg_id];
 }

 #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf)		\
 	_rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
 				 int id_size,
 				 int reg_id,
 				 const char *name,
 				 struct rsnd_regmap_field_conf *conf,
 				 int conf_size)
 {
 	struct platform_device *pdev = rsnd_priv_to_pdev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct resource *res;
 	struct regmap_config regc;
 	struct regmap_field *regs;
 	struct regmap *regmap;
 	struct reg_field regf;
 	void __iomem *base;
 	int i;

 	memset(&regc, 0, sizeof(regc));
 	regc.reg_bits = 32;
 	regc.val_bits = 32;
 	regc.reg_stride = 4;
 	regc.name = name;

 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
 	if (!res)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
 	if (!res)
 		return -ENODEV;

 	base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);

 	regmap = devm_regmap_init_mmio(dev, base, &regc);
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);

 	/* RSND_BASE_MAX base */
 	gen->base[reg_id] = base;
 	gen->regmap[reg_id] = regmap;
 	gen->res[reg_id] = res->start;

 	for (i = 0; i < conf_size; i++) {

 		regf.reg	= conf[i].reg_offset;
 		regf.id_offset	= conf[i].id_offset;
 		regf.lsb	= 0;
 		regf.msb	= 31;
 		regf.id_size	= id_size;

 		regs = devm_regmap_field_alloc(dev, regmap, regf);
 		if (IS_ERR(regs))
 			return PTR_ERR(regs);

 		/* RSND_REG_MAX base */
 		gen->regs[conf[i].idx] = regs;
 	}

 	return 0;
 }

 /*
  *		Gen2
  */
 static int rsnd_gen2_probe(struct platform_device *pdev,
 			   struct rsnd_priv *priv)
 {
 	struct rsnd_regmap_field_conf conf_ssiu[] = {
 		RSND_GEN_S_REG(SSI_MODE0,	0x800),
 		RSND_GEN_S_REG(SSI_MODE1,	0x804),
 		/* FIXME: it needs SSI_MODE2/3 in the future */
 		RSND_GEN_M_REG(SSI_BUSIF_MODE,	0x0,	0x80),
 		RSND_GEN_M_REG(SSI_BUSIF_ADINR,	0x4,	0x80),
 		RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8,	0x80),
 		RSND_GEN_M_REG(SSI_CTRL,	0x10,	0x80),
 		RSND_GEN_M_REG(SSI_INT_ENABLE,	0x18,	0x80),
 	};
 	struct rsnd_regmap_field_conf conf_scu[] = {
 		RSND_GEN_M_REG(SRC_BUSIF_MODE,	0x0,	0x20),
 		RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8,	0x20),
 		RSND_GEN_M_REG(SRC_ROUTE_MODE0,	0xc,	0x20),
 		RSND_GEN_M_REG(SRC_CTRL,	0x10,	0x20),
 		RSND_GEN_M_REG(SRC_INT_ENABLE0,	0x18,	0x20),
 		RSND_GEN_M_REG(CMD_ROUTE_SLCT,	0x18c,	0x20),
 		RSND_GEN_M_REG(CMD_CTRL,	0x190,	0x20),
 		RSND_GEN_S_REG(SCU_SYS_STATUS0,	0x1c8),
 		RSND_GEN_S_REG(SCU_SYS_INT_EN0,	0x1cc),
 		RSND_GEN_S_REG(SCU_SYS_STATUS1,	0x1d0),
 		RSND_GEN_S_REG(SCU_SYS_INT_EN1,	0x1d4),
 		RSND_GEN_M_REG(SRC_SWRSR,	0x200,	0x40),
 		RSND_GEN_M_REG(SRC_SRCIR,	0x204,	0x40),
 		RSND_GEN_M_REG(SRC_ADINR,	0x214,	0x40),
 		RSND_GEN_M_REG(SRC_IFSCR,	0x21c,	0x40),
 		RSND_GEN_M_REG(SRC_IFSVR,	0x220,	0x40),
 		RSND_GEN_M_REG(SRC_SRCCR,	0x224,	0x40),
 		RSND_GEN_M_REG(SRC_BSDSR,	0x22c,	0x40),
 		RSND_GEN_M_REG(SRC_BSISR,	0x238,	0x40),
 		RSND_GEN_M_REG(CTU_CTUIR,	0x504,	0x100),
 		RSND_GEN_M_REG(CTU_ADINR,	0x508,	0x100),
 		RSND_GEN_M_REG(MIX_SWRSR,	0xd00,	0x40),
 		RSND_GEN_M_REG(MIX_MIXIR,	0xd04,	0x40),
 		RSND_GEN_M_REG(MIX_ADINR,	0xd08,	0x40),
 		RSND_GEN_M_REG(MIX_MIXMR,	0xd10,	0x40),
 		RSND_GEN_M_REG(MIX_MVPDR,	0xd14,	0x40),
 		RSND_GEN_M_REG(MIX_MDBAR,	0xd18,	0x40),
 		RSND_GEN_M_REG(MIX_MDBBR,	0xd1c,	0x40),
 		RSND_GEN_M_REG(MIX_MDBCR,	0xd20,	0x40),
 		RSND_GEN_M_REG(MIX_MDBDR,	0xd24,	0x40),
 		RSND_GEN_M_REG(MIX_MDBER,	0xd28,	0x40),
 		RSND_GEN_M_REG(DVC_SWRSR,	0xe00,	0x100),
 		RSND_GEN_M_REG(DVC_DVUIR,	0xe04,	0x100),
 		RSND_GEN_M_REG(DVC_ADINR,	0xe08,	0x100),
 		RSND_GEN_M_REG(DVC_DVUCR,	0xe10,	0x100),
 		RSND_GEN_M_REG(DVC_ZCMCR,	0xe14,	0x100),
 		RSND_GEN_M_REG(DVC_VRCTR,	0xe18,	0x100),
 		RSND_GEN_M_REG(DVC_VRPDR,	0xe1c,	0x100),
 		RSND_GEN_M_REG(DVC_VRDBR,	0xe20,	0x100),
 		RSND_GEN_M_REG(DVC_VOL0R,	0xe28,	0x100),
 		RSND_GEN_M_REG(DVC_VOL1R,	0xe2c,	0x100),
 		RSND_GEN_M_REG(DVC_DVUER,	0xe48,	0x100),
 	};
 	struct rsnd_regmap_field_conf conf_adg[] = {
 		RSND_GEN_S_REG(BRRA,		0x00),
 		RSND_GEN_S_REG(BRRB,		0x04),
 		RSND_GEN_S_REG(SSICKR,		0x08),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL2,	0x14),
 		RSND_GEN_S_REG(DIV_EN,		0x30),
 		RSND_GEN_S_REG(SRCIN_TIMSEL0,	0x34),
 		RSND_GEN_S_REG(SRCIN_TIMSEL1,	0x38),
 		RSND_GEN_S_REG(SRCIN_TIMSEL2,	0x3c),
 		RSND_GEN_S_REG(SRCIN_TIMSEL3,	0x40),
 		RSND_GEN_S_REG(SRCIN_TIMSEL4,	0x44),
 		RSND_GEN_S_REG(SRCOUT_TIMSEL0,	0x48),
 		RSND_GEN_S_REG(SRCOUT_TIMSEL1,	0x4c),
 		RSND_GEN_S_REG(SRCOUT_TIMSEL2,	0x50),
 		RSND_GEN_S_REG(SRCOUT_TIMSEL3,	0x54),
 		RSND_GEN_S_REG(SRCOUT_TIMSEL4,	0x58),
 		RSND_GEN_S_REG(CMDOUT_TIMSEL,	0x5c),
 	};
 	struct rsnd_regmap_field_conf conf_ssi[] = {
 		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
 		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
 		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
 		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
 		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
 	};
 	int ret_ssiu;
 	int ret_scu;
 	int ret_adg;
 	int ret_ssi;

 	ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
 	ret_scu  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU,  "scu",  conf_scu);
 	ret_adg  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG,  "adg",  conf_adg);
 	ret_ssi  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI,  "ssi",  conf_ssi);
 	if (ret_ssiu < 0 ||
 	    ret_scu  < 0 ||
 	    ret_adg  < 0 ||
 	    ret_ssi  < 0)
 		return ret_ssiu | ret_scu | ret_adg | ret_ssi;

 	return 0;
 }

 /*
  *		Gen1
  */

 static int rsnd_gen1_probe(struct platform_device *pdev,
 			   struct rsnd_priv *priv)
 {
 	struct rsnd_regmap_field_conf conf_sru[] = {
 		RSND_GEN_S_REG(SRC_ROUTE_SEL,	0x00),
 		RSND_GEN_S_REG(SRC_TMG_SEL0,	0x08),
 		RSND_GEN_S_REG(SRC_TMG_SEL1,	0x0c),
 		RSND_GEN_S_REG(SRC_TMG_SEL2,	0x10),
 		RSND_GEN_S_REG(SRC_ROUTE_CTRL,	0xc0),
 		RSND_GEN_S_REG(SSI_MODE0,	0xD0),
 		RSND_GEN_S_REG(SSI_MODE1,	0xD4),
 		RSND_GEN_M_REG(SRC_BUSIF_MODE,	0x20,	0x4),
 		RSND_GEN_M_REG(SRC_ROUTE_MODE0,	0x50,	0x8),
 		RSND_GEN_M_REG(SRC_SWRSR,	0x200,	0x40),
 		RSND_GEN_M_REG(SRC_SRCIR,	0x204,	0x40),
 		RSND_GEN_M_REG(SRC_ADINR,	0x214,	0x40),
 		RSND_GEN_M_REG(SRC_IFSCR,	0x21c,	0x40),
 		RSND_GEN_M_REG(SRC_IFSVR,	0x220,	0x40),
 		RSND_GEN_M_REG(SRC_SRCCR,	0x224,	0x40),
 		RSND_GEN_M_REG(SRC_MNFSR,	0x228,	0x40),
 		/*
 		 * ADD US
 		 *
 		 * SRC_STATUS
 		 * SRC_INT_EN
 		 * SCU_SYS_STATUS0
 		 * SCU_SYS_STATUS1
 		 * SCU_SYS_INT_EN0
 		 * SCU_SYS_INT_EN1
 		 */
 	};
 	struct rsnd_regmap_field_conf conf_adg[] = {
 		RSND_GEN_S_REG(BRRA,		0x00),
 		RSND_GEN_S_REG(BRRB,		0x04),
 		RSND_GEN_S_REG(SSICKR,		0x08),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL3,	0x18),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL4,	0x1c),
 		RSND_GEN_S_REG(AUDIO_CLK_SEL5,	0x20),
 	};
 	struct rsnd_regmap_field_conf conf_ssi[] = {
 		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
 		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
 		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
 		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
 		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
 	};
 	int ret_sru;
 	int ret_adg;
 	int ret_ssi;

 	ret_sru  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru);
 	ret_adg  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
 	ret_ssi  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
 	if (ret_sru  < 0 ||
 	    ret_adg  < 0 ||
 	    ret_ssi  < 0)
 		return ret_sru | ret_adg | ret_ssi;

 	return 0;
 }

 /*
  *		Gen
  */
 static void rsnd_of_parse_gen(struct platform_device *pdev,
 			      const struct rsnd_of_data *of_data,
 			      struct rsnd_priv *priv)
 {
 	struct rcar_snd_info *info = priv->info;

 	if (!of_data)
 		return;

 	info->flags = of_data->flags;
 }

 int rsnd_gen_probe(struct platform_device *pdev,
 		   const struct rsnd_of_data *of_data,
 		   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen;
 	int ret;

 	rsnd_of_parse_gen(pdev, of_data, priv);

 	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
 	if (!gen) {
 		dev_err(dev, "GEN allocate failed\n");
 		return -ENOMEM;
 	}

 	priv->gen = gen;

 	ret = -ENODEV;
 	if (rsnd_is_gen1(priv))
 		ret = rsnd_gen1_probe(pdev, priv);
 	else if (rsnd_is_gen2(priv))
 		ret = rsnd_gen2_probe(pdev, priv);

 	if (ret < 0)
 		dev_err(dev, "unknown generation R-Car sound device\n");

 	return ret;
 }
	/*
	* Renesas R-Car Gen1 SRU/SSI support
	*
	* Copyright (C) 2013 Renesas Solutions Corp.
	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	*
	* 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.
	*/

	/*
	* #define DEBUG
	*
	* you can also add below in
	* ${LINUX}/drivers/base/regmap/regmap.c
	* for regmap debug
	*
	* #define LOG_DEVICE "xxxx.rcar_sound"
	*/

	#include "rsnd.h"

	struct rsnd_gen {
	struct rsnd_gen_ops *ops;

	/* RSND_BASE_MAX base */
	void __iomem *base[RSND_BASE_MAX];
	phys_addr_t res[RSND_BASE_MAX];
	struct regmap *regmap[RSND_BASE_MAX];

	/* RSND_REG_MAX base */
	struct regmap_field *regs[RSND_REG_MAX];
	};

	#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)

	struct rsnd_regmap_field_conf {
	int idx;
	unsigned int reg_offset;
	unsigned int id_offset;
	};

	#define RSND_REG_SET(id, offset, _id_offset) \
	{ \
	.idx = id, \
	.reg_offset = offset, \
	.id_offset = _id_offset, \
	}
	/* single address mapping */
	#define RSND_GEN_S_REG(id, offset) \
	RSND_REG_SET(RSND_REG_##id, offset, 0)

	/* multi address mapping */
	#define RSND_GEN_M_REG(id, offset, _id_offset) \
	RSND_REG_SET(RSND_REG_##id, offset, _id_offset)

	/*
	* basic function
	*/
	static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
	struct rsnd_gen *gen, enum rsnd_reg reg)
	{
	if (!gen->regs[reg]) {
	struct device *dev = rsnd_priv_to_dev(priv);

	dev_err(dev, "unsupported register access %x\n", reg);
	return 0;
	}

	return 1;
	}

	u32 rsnd_read(struct rsnd_priv *priv,
	struct rsnd_mod *mod, enum rsnd_reg reg)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
	u32 val;

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return 0;

	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);

	dev_dbg(dev, "r %s[%d] - %4d : %08x\n",
	rsnd_mod_name(mod), rsnd_mod_id(mod), reg, val);

	return val;
	}

	void rsnd_write(struct rsnd_priv *priv,
	struct rsnd_mod *mod,
	enum rsnd_reg reg, u32 data)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return;

	dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
	rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);

	regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
	}

	void rsnd_force_write(struct rsnd_priv *priv,
	struct rsnd_mod *mod,
	enum rsnd_reg reg, u32 data)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return;

	dev_dbg(dev, "w %s[%d] - %4d : %08x\n",
	rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data);

	regmap_fields_force_write(gen->regs[reg], rsnd_mod_id(mod), data);
	}

	void rsnd_bset(struct rsnd_priv priv, struct rsnd_mod mod,
	enum rsnd_reg reg, u32 mask, u32 data)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return;

	dev_dbg(dev, "b %s[%d] - %4d : %08x/%08x\n",
	rsnd_mod_name(mod), rsnd_mod_id(mod), reg, data, mask);

	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
	mask, data);
	}

	phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
	{
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	return gen->res[reg_id];
	}

	#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \
	_rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
	static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
	int id_size,
	int reg_id,
	const char *name,
	struct rsnd_regmap_field_conf *conf,
	int conf_size)
	{
	struct platform_device *pdev = rsnd_priv_to_pdev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
	struct device *dev = rsnd_priv_to_dev(priv);
	struct resource *res;
	struct regmap_config regc;
	struct regmap_field *regs;
	struct regmap *regmap;
	struct reg_field regf;
	void __iomem *base;
	int i;

	memset(&regc, 0, sizeof(regc));
	regc.reg_bits = 32;
	regc.val_bits = 32;
	regc.reg_stride = 4;
	regc.name = name;

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
	if (!res)
	res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
	if (!res)
	return -ENODEV;

	base = devm_ioremap_resource(dev, res);
	if (IS_ERR(base))
	return PTR_ERR(base);

	regmap = devm_regmap_init_mmio(dev, base, &regc);
	if (IS_ERR(regmap))
	return PTR_ERR(regmap);

	/* RSND_BASE_MAX base */
	gen->base[reg_id] = base;
	gen->regmap[reg_id] = regmap;
	gen->res[reg_id] = res->start;

	for (i = 0; i < conf_size; i++) {

	regf.reg = conf[i].reg_offset;
	regf.id_offset = conf[i].id_offset;
	regf.lsb = 0;
	regf.msb = 31;
	regf.id_size = id_size;

	regs = devm_regmap_field_alloc(dev, regmap, regf);
	if (IS_ERR(regs))
	return PTR_ERR(regs);

	/* RSND_REG_MAX base */
	gen->regs[conf[i].idx] = regs;
	}

	return 0;
	}

	/*
	* Gen2
	*/
	static int rsnd_gen2_probe(struct platform_device *pdev,
	struct rsnd_priv *priv)
	{
	struct rsnd_regmap_field_conf conf_ssiu[] = {
	RSND_GEN_S_REG(SSI_MODE0, 0x800),
	RSND_GEN_S_REG(SSI_MODE1, 0x804),
	/* FIXME: it needs SSI_MODE2/3 in the future */
	RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80),
	RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80),
	RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8, 0x80),
	RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
	RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80),
	};
	struct rsnd_regmap_field_conf conf_scu[] = {
	RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x0, 0x20),
	RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8, 0x20),
	RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20),
	RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20),
	RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20),
	RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20),
	RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20),
	RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8),
	RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc),
	RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0),
	RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1d4),
	RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
	RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
	RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
	RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
	RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
	RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
	RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40),
	RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40),
	RSND_GEN_M_REG(CTU_CTUIR, 0x504, 0x100),
	RSND_GEN_M_REG(CTU_ADINR, 0x508, 0x100),
	RSND_GEN_M_REG(MIX_SWRSR, 0xd00, 0x40),
	RSND_GEN_M_REG(MIX_MIXIR, 0xd04, 0x40),
	RSND_GEN_M_REG(MIX_ADINR, 0xd08, 0x40),
	RSND_GEN_M_REG(MIX_MIXMR, 0xd10, 0x40),
	RSND_GEN_M_REG(MIX_MVPDR, 0xd14, 0x40),
	RSND_GEN_M_REG(MIX_MDBAR, 0xd18, 0x40),
	RSND_GEN_M_REG(MIX_MDBBR, 0xd1c, 0x40),
	RSND_GEN_M_REG(MIX_MDBCR, 0xd20, 0x40),
	RSND_GEN_M_REG(MIX_MDBDR, 0xd24, 0x40),
	RSND_GEN_M_REG(MIX_MDBER, 0xd28, 0x40),
	RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100),
	RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100),
	RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100),
	RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100),
	RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100),
	RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100),
	RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100),
	RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100),
	RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100),
	RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100),
	RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100),
	};
	struct rsnd_regmap_field_conf conf_adg[] = {
	RSND_GEN_S_REG(BRRA, 0x00),
	RSND_GEN_S_REG(BRRB, 0x04),
	RSND_GEN_S_REG(SSICKR, 0x08),
	RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
	RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
	RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14),
	RSND_GEN_S_REG(DIV_EN, 0x30),
	RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34),
	RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38),
	RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c),
	RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40),
	RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44),
	RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48),
	RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c),
	RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50),
	RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54),
	RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58),
	RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c),
	};
	struct rsnd_regmap_field_conf conf_ssi[] = {
	RSND_GEN_M_REG(SSICR, 0x00, 0x40),
	RSND_GEN_M_REG(SSISR, 0x04, 0x40),
	RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
	RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
	RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
	};
	int ret_ssiu;
	int ret_scu;
	int ret_adg;
	int ret_ssi;

	ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
	ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu);
	ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg);
	ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi);
	if (ret_ssiu < 0 \|\|
	ret_scu < 0 \|\|
	ret_adg < 0 \|\|
	ret_ssi < 0)
	return ret_ssiu \| ret_scu \| ret_adg \| ret_ssi;

	return 0;
	}

	/*
	* Gen1
	*/

	static int rsnd_gen1_probe(struct platform_device *pdev,
	struct rsnd_priv *priv)
	{
	struct rsnd_regmap_field_conf conf_sru[] = {
	RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00),
	RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08),
	RSND_GEN_S_REG(SRC_TMG_SEL1, 0x0c),
	RSND_GEN_S_REG(SRC_TMG_SEL2, 0x10),
	RSND_GEN_S_REG(SRC_ROUTE_CTRL, 0xc0),
	RSND_GEN_S_REG(SSI_MODE0, 0xD0),
	RSND_GEN_S_REG(SSI_MODE1, 0xD4),
	RSND_GEN_M_REG(SRC_BUSIF_MODE, 0x20, 0x4),
	RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0x50, 0x8),
	RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
	RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
	RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
	RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
	RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
	RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
	RSND_GEN_M_REG(SRC_MNFSR, 0x228, 0x40),
	/*
	* ADD US
	*
	* SRC_STATUS
	* SRC_INT_EN
	* SCU_SYS_STATUS0
	* SCU_SYS_STATUS1
	* SCU_SYS_INT_EN0
	* SCU_SYS_INT_EN1
	*/
	};
	struct rsnd_regmap_field_conf conf_adg[] = {
	RSND_GEN_S_REG(BRRA, 0x00),
	RSND_GEN_S_REG(BRRB, 0x04),
	RSND_GEN_S_REG(SSICKR, 0x08),
	RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
	RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
	RSND_GEN_S_REG(AUDIO_CLK_SEL3, 0x18),
	RSND_GEN_S_REG(AUDIO_CLK_SEL4, 0x1c),
	RSND_GEN_S_REG(AUDIO_CLK_SEL5, 0x20),
	};
	struct rsnd_regmap_field_conf conf_ssi[] = {
	RSND_GEN_M_REG(SSICR, 0x00, 0x40),
	RSND_GEN_M_REG(SSISR, 0x04, 0x40),
	RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
	RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
	RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
	};
	int ret_sru;
	int ret_adg;
	int ret_ssi;

	ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru);
	ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
	ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
	if (ret_sru < 0 \|\|
	ret_adg < 0 \|\|
	ret_ssi < 0)
	return ret_sru \| ret_adg \| ret_ssi;

	return 0;
	}

	/*
	* Gen
	*/
	static void rsnd_of_parse_gen(struct platform_device *pdev,
	const struct rsnd_of_data *of_data,
	struct rsnd_priv *priv)
	{
	struct rcar_snd_info *info = priv->info;

	if (!of_data)
	return;

	info->flags = of_data->flags;
	}

	int rsnd_gen_probe(struct platform_device *pdev,
	const struct rsnd_of_data *of_data,
	struct rsnd_priv *priv)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen;
	int ret;

	rsnd_of_parse_gen(pdev, of_data, priv);

	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
	if (!gen) {
	dev_err(dev, "GEN allocate failed\n");
	return -ENOMEM;
	}

	priv->gen = gen;

	ret = -ENODEV;
	if (rsnd_is_gen1(priv))
	ret = rsnd_gen1_probe(pdev, priv);
	else if (rsnd_is_gen2(priv))
	ret = rsnd_gen2_probe(pdev, priv);

	if (ret < 0)
	dev_err(dev, "unknown generation R-Car sound device\n");

	return ret;
	}