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|
// SPDX-License-Identifier: GPL-2.0
//
// Renesas R-Car Gen1 SRU/SSI support
//
// Copyright (C) 2013 Renesas Solutions Corp.
// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
/*
* #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[REG_MAX];
const char *reg_name[REG_MAX];
};
#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
#define rsnd_reg_name(gen, id) ((gen)->reg_name[id])
struct rsnd_regmap_field_conf {
int idx;
unsigned int reg_offset;
unsigned int id_offset;
const char *reg_name;
};
#define RSND_REG_SET(id, offset, _id_offset, n) \
{ \
.idx = id, \
.reg_offset = offset, \
.id_offset = _id_offset, \
.reg_name = n, \
}
/* single address mapping */
#define RSND_GEN_S_REG(id, offset) \
RSND_REG_SET(id, offset, 0, #id)
/* multi address mapping */
#define RSND_GEN_M_REG(id, offset, _id_offset) \
RSND_REG_SET(id, offset, _id_offset, #id)
/*
* 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;
}
static int rsnd_mod_id_cmd(struct rsnd_mod *mod)
{
if (mod->ops->id_cmd)
return mod->ops->id_cmd(mod);
return rsnd_mod_id(mod);
}
u32 rsnd_mod_read(struct rsnd_mod *mod, enum rsnd_reg reg)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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_cmd(mod), &val);
dev_dbg(dev, "r %s - %-18s (%4d) : %08x\n",
rsnd_mod_name(mod),
rsnd_reg_name(gen, reg), reg, val);
return val;
}
void rsnd_mod_write(struct rsnd_mod *mod,
enum rsnd_reg reg, u32 data)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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;
regmap_fields_force_write(gen->regs[reg], rsnd_mod_id_cmd(mod), data);
dev_dbg(dev, "w %s - %-18s (%4d) : %08x\n",
rsnd_mod_name(mod),
rsnd_reg_name(gen, reg), reg, data);
}
void rsnd_mod_bset(struct rsnd_mod *mod,
enum rsnd_reg reg, u32 mask, u32 data)
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
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;
regmap_fields_force_update_bits(gen->regs[reg],
rsnd_mod_id_cmd(mod), mask, data);
dev_dbg(dev, "b %s - %-18s (%4d) : %08x/%08x\n",
rsnd_mod_name(mod),
rsnd_reg_name(gen, reg), reg, data, mask);
}
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];
}
#ifdef CONFIG_DEBUG_FS
void __iomem *rsnd_gen_get_base_addr(struct rsnd_priv *priv, int reg_id)
{
struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
return gen->base[reg_id];
}
#endif
#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,
const 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(®c, 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)
return -ENODEV;
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
regmap = devm_regmap_init_mmio(dev, base, ®c);
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;
gen->reg_name[conf[i].idx] = conf[i].reg_name;
}
return 0;
}
/*
* (A) : Gen4 is 0xa0c, but it is not used.
* see
* rsnd_ssiu_init()
*/
static const struct rsnd_regmap_field_conf conf_common_ssiu[] = {
RSND_GEN_S_REG(SSI_MODE0, 0x800),
RSND_GEN_S_REG(SSI_MODE1, 0x804),
RSND_GEN_S_REG(SSI_MODE2, 0x808), // (A)
RSND_GEN_S_REG(SSI_CONTROL, 0x810),
RSND_GEN_S_REG(SSI_SYS_STATUS0, 0x840),
RSND_GEN_S_REG(SSI_SYS_STATUS1, 0x844),
RSND_GEN_S_REG(SSI_SYS_STATUS2, 0x848),
RSND_GEN_S_REG(SSI_SYS_STATUS3, 0x84c),
RSND_GEN_S_REG(SSI_SYS_STATUS4, 0x880),
RSND_GEN_S_REG(SSI_SYS_STATUS5, 0x884),
RSND_GEN_S_REG(SSI_SYS_STATUS6, 0x888),
RSND_GEN_S_REG(SSI_SYS_STATUS7, 0x88c),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE0, 0x850),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE1, 0x854),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE2, 0x858),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE3, 0x85c),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE4, 0x890),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE5, 0x894),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE6, 0x898),
RSND_GEN_S_REG(SSI_SYS_INT_ENABLE7, 0x89c),
RSND_GEN_S_REG(HDMI0_SEL, 0x9e0),
RSND_GEN_S_REG(HDMI1_SEL, 0x9e4),
RSND_GEN_M_REG(SSI_BUSIF0_MODE, 0x0, 0x80),
RSND_GEN_M_REG(SSI_BUSIF0_ADINR, 0x4, 0x80),
RSND_GEN_M_REG(SSI_BUSIF0_DALIGN, 0x8, 0x80),
RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80),
RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80),
RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80),
RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80),
RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80),
RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80),
RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80),
RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80),
RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80),
RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80),
RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80),
RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80),
RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80),
RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80),
RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80),
RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80),
RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80),
RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80),
RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80),
RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80),
RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 0x80),
RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80),
RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80),
RSND_GEN_S_REG(SSI9_BUSIF0_MODE, 0x48c),
RSND_GEN_S_REG(SSI9_BUSIF0_ADINR, 0x484),
RSND_GEN_S_REG(SSI9_BUSIF0_DALIGN, 0x488),
RSND_GEN_S_REG(SSI9_BUSIF1_MODE, 0x4a0),
RSND_GEN_S_REG(SSI9_BUSIF1_ADINR, 0x4a4),
RSND_GEN_S_REG(SSI9_BUSIF1_DALIGN, 0x4a8),
RSND_GEN_S_REG(SSI9_BUSIF2_MODE, 0x4c0),
RSND_GEN_S_REG(SSI9_BUSIF2_ADINR, 0x4c4),
RSND_GEN_S_REG(SSI9_BUSIF2_DALIGN, 0x4c8),
RSND_GEN_S_REG(SSI9_BUSIF3_MODE, 0x4e0),
RSND_GEN_S_REG(SSI9_BUSIF3_ADINR, 0x4e4),
RSND_GEN_S_REG(SSI9_BUSIF3_DALIGN, 0x4e8),
RSND_GEN_S_REG(SSI9_BUSIF4_MODE, 0xd80),
RSND_GEN_S_REG(SSI9_BUSIF4_ADINR, 0xd84),
RSND_GEN_S_REG(SSI9_BUSIF4_DALIGN, 0xd88),
RSND_GEN_S_REG(SSI9_BUSIF5_MODE, 0xda0),
RSND_GEN_S_REG(SSI9_BUSIF5_ADINR, 0xda4),
RSND_GEN_S_REG(SSI9_BUSIF5_DALIGN, 0xda8),
RSND_GEN_S_REG(SSI9_BUSIF6_MODE, 0xdc0),
RSND_GEN_S_REG(SSI9_BUSIF6_ADINR, 0xdc4),
RSND_GEN_S_REG(SSI9_BUSIF6_DALIGN, 0xdc8),
RSND_GEN_S_REG(SSI9_BUSIF7_MODE, 0xde0),
RSND_GEN_S_REG(SSI9_BUSIF7_ADINR, 0xde4),
RSND_GEN_S_REG(SSI9_BUSIF7_DALIGN, 0xde8),
};
static const struct rsnd_regmap_field_conf conf_common_scu[] = {
RSND_GEN_M_REG(SRC_I_BUSIF_MODE, 0x0, 0x20),
RSND_GEN_M_REG(SRC_O_BUSIF_MODE, 0x4, 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_BUSIF_MODE, 0x184, 0x20),
RSND_GEN_M_REG(CMD_BUSIF_DALIGN, 0x188, 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_SWRSR, 0x500, 0x100),
RSND_GEN_M_REG(CTU_CTUIR, 0x504, 0x100),
RSND_GEN_M_REG(CTU_ADINR, 0x508, 0x100),
RSND_GEN_M_REG(CTU_CPMDR, 0x510, 0x100),
RSND_GEN_M_REG(CTU_SCMDR, 0x514, 0x100),
RSND_GEN_M_REG(CTU_SV00R, 0x518, 0x100),
RSND_GEN_M_REG(CTU_SV01R, 0x51c, 0x100),
RSND_GEN_M_REG(CTU_SV02R, 0x520, 0x100),
RSND_GEN_M_REG(CTU_SV03R, 0x524, 0x100),
RSND_GEN_M_REG(CTU_SV04R, 0x528, 0x100),
RSND_GEN_M_REG(CTU_SV05R, 0x52c, 0x100),
RSND_GEN_M_REG(CTU_SV06R, 0x530, 0x100),
RSND_GEN_M_REG(CTU_SV07R, 0x534, 0x100),
RSND_GEN_M_REG(CTU_SV10R, 0x538, 0x100),
RSND_GEN_M_REG(CTU_SV11R, 0x53c, 0x100),
RSND_GEN_M_REG(CTU_SV12R, 0x540, 0x100),
RSND_GEN_M_REG(CTU_SV13R, 0x544, 0x100),
RSND_GEN_M_REG(CTU_SV14R, 0x548, 0x100),
RSND_GEN_M_REG(CTU_SV15R, 0x54c, 0x100),
RSND_GEN_M_REG(CTU_SV16R, 0x550, 0x100),
RSND_GEN_M_REG(CTU_SV17R, 0x554, 0x100),
RSND_GEN_M_REG(CTU_SV20R, 0x558, 0x100),
RSND_GEN_M_REG(CTU_SV21R, 0x55c, 0x100),
RSND_GEN_M_REG(CTU_SV22R, 0x560, 0x100),
RSND_GEN_M_REG(CTU_SV23R, 0x564, 0x100),
RSND_GEN_M_REG(CTU_SV24R, 0x568, 0x100),
RSND_GEN_M_REG(CTU_SV25R, 0x56c, 0x100),
RSND_GEN_M_REG(CTU_SV26R, 0x570, 0x100),
RSND_GEN_M_REG(CTU_SV27R, 0x574, 0x100),
RSND_GEN_M_REG(CTU_SV30R, 0x578, 0x100),
RSND_GEN_M_REG(CTU_SV31R, 0x57c, 0x100),
RSND_GEN_M_REG(CTU_SV32R, 0x580, 0x100),
RSND_GEN_M_REG(CTU_SV33R, 0x584, 0x100),
RSND_GEN_M_REG(CTU_SV34R, 0x588, 0x100),
RSND_GEN_M_REG(CTU_SV35R, 0x58c, 0x100),
RSND_GEN_M_REG(CTU_SV36R, 0x590, 0x100),
RSND_GEN_M_REG(CTU_SV37R, 0x594, 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_VOL2R, 0xe30, 0x100),
RSND_GEN_M_REG(DVC_VOL3R, 0xe34, 0x100),
RSND_GEN_M_REG(DVC_VOL4R, 0xe38, 0x100),
RSND_GEN_M_REG(DVC_VOL5R, 0xe3c, 0x100),
RSND_GEN_M_REG(DVC_VOL6R, 0xe40, 0x100),
RSND_GEN_M_REG(DVC_VOL7R, 0xe44, 0x100),
RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100),
};
static const struct rsnd_regmap_field_conf conf_common_adg[] = {
RSND_GEN_S_REG(BRRA, 0x00),
RSND_GEN_S_REG(BRRB, 0x04),
RSND_GEN_S_REG(BRGCKR, 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),
};
static const struct rsnd_regmap_field_conf conf_common_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),
};
/*
* Gen4
*/
static int rsnd_gen4_probe(struct rsnd_priv *priv)
{
struct rsnd_regmap_field_conf conf_null[] = { };
/*
* ssiu: SSIU0
* ssi : SSI0
*/
int ret_ssiu = rsnd_gen_regmap_init(priv, 1, RSND_BASE_SSIU, "ssiu", conf_common_ssiu);
int ret_ssi = rsnd_gen_regmap_init(priv, 1, RSND_BASE_SSI, "ssi", conf_common_ssi);
int ret_adg = rsnd_gen_regmap_init(priv, 1, RSND_BASE_ADG, "adg", conf_common_adg);
int ret_sdmc = rsnd_gen_regmap_init(priv, 1, RSND_BASE_SDMC, "sdmc", conf_null);
return ret_adg | ret_ssiu | ret_ssi | ret_sdmc;
}
/*
* Gen2
*/
static int rsnd_gen2_probe(struct rsnd_priv *priv)
{
/*
* ssi : SSI0 - SSI9
* ssiu: SSIU0 - SSIU9
* scu : SRC0 - SRC9 etc
*/
int ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_BASE_SSI, "ssi", conf_common_ssi);
int ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_BASE_SSIU, "ssiu", conf_common_ssiu);
int ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_BASE_SCU, "scu", conf_common_scu);
int ret_adg = rsnd_gen_regmap_init(priv, 1, RSND_BASE_ADG, "adg", conf_common_adg);
return ret_ssi | ret_ssiu | ret_scu | ret_adg;
}
/*
* Gen1
*/
static int rsnd_gen1_probe(struct rsnd_priv *priv)
{
/*
* ssi : SSI0 - SSI8
*/
int ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_BASE_SSI, "ssi", conf_common_ssi);
int ret_adg = rsnd_gen_regmap_init(priv, 1, RSND_BASE_ADG, "adg", conf_common_adg);
return ret_adg | ret_ssi;
}
/*
* Gen
*/
int rsnd_gen_probe(struct rsnd_priv *priv)
{
struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_gen *gen;
int ret;
gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
if (!gen)
return -ENOMEM;
priv->gen = gen;
ret = -ENODEV;
if (rsnd_is_gen1(priv))
ret = rsnd_gen1_probe(priv);
else if (rsnd_is_gen2(priv) ||
rsnd_is_gen3(priv))
ret = rsnd_gen2_probe(priv);
else if (rsnd_is_gen4(priv))
ret = rsnd_gen4_probe(priv);
if (ret < 0)
dev_err(dev, "unknown generation R-Car sound device\n");
return ret;
}
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