xref: /openbmc/linux/sound/soc/sh/rcar/gen.c (revision 9b93eb47)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Renesas R-Car Gen1 SRU/SSI support
4 //
5 // Copyright (C) 2013 Renesas Solutions Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 
8 /*
9  * #define DEBUG
10  *
11  * you can also add below in
12  * ${LINUX}/drivers/base/regmap/regmap.c
13  * for regmap debug
14  *
15  * #define LOG_DEVICE "xxxx.rcar_sound"
16  */
17 
18 #include "rsnd.h"
19 
20 struct rsnd_gen {
21 	struct rsnd_gen_ops *ops;
22 
23 	/* RSND_BASE_MAX base */
24 	void __iomem *base[RSND_BASE_MAX];
25 	phys_addr_t res[RSND_BASE_MAX];
26 	struct regmap *regmap[RSND_BASE_MAX];
27 
28 	/* RSND_REG_MAX base */
29 	struct regmap_field *regs[REG_MAX];
30 	const char *reg_name[REG_MAX];
31 };
32 
33 #define rsnd_priv_to_gen(p)	((struct rsnd_gen *)(p)->gen)
34 #define rsnd_reg_name(gen, id)	((gen)->reg_name[id])
35 
36 struct rsnd_regmap_field_conf {
37 	int idx;
38 	unsigned int reg_offset;
39 	unsigned int id_offset;
40 	const char *reg_name;
41 };
42 
43 #define RSND_REG_SET(id, offset, _id_offset, n)	\
44 {						\
45 	.idx = id,				\
46 	.reg_offset = offset,			\
47 	.id_offset = _id_offset,		\
48 	.reg_name = n,				\
49 }
50 /* single address mapping */
51 #define RSND_GEN_S_REG(id, offset)	\
52 	RSND_REG_SET(id, offset, 0, #id)
53 
54 /* multi address mapping */
55 #define RSND_GEN_M_REG(id, offset, _id_offset)	\
56 	RSND_REG_SET(id, offset, _id_offset, #id)
57 
58 /*
59  *		basic function
60  */
61 static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
62 				  struct rsnd_gen *gen, enum rsnd_reg reg)
63 {
64 	if (!gen->regs[reg]) {
65 		struct device *dev = rsnd_priv_to_dev(priv);
66 
67 		dev_err(dev, "unsupported register access %x\n", reg);
68 		return 0;
69 	}
70 
71 	return 1;
72 }
73 
74 static int rsnd_mod_id_cmd(struct rsnd_mod *mod)
75 {
76 	if (mod->ops->id_cmd)
77 		return mod->ops->id_cmd(mod);
78 
79 	return rsnd_mod_id(mod);
80 }
81 
82 u32 rsnd_mod_read(struct rsnd_mod *mod, enum rsnd_reg reg)
83 {
84 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
85 	struct device *dev = rsnd_priv_to_dev(priv);
86 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
87 	u32 val;
88 
89 	if (!rsnd_is_accessible_reg(priv, gen, reg))
90 		return 0;
91 
92 	regmap_fields_read(gen->regs[reg], rsnd_mod_id_cmd(mod), &val);
93 
94 	dev_dbg(dev, "r %s - %-18s (%4d) : %08x\n",
95 		rsnd_mod_name(mod),
96 		rsnd_reg_name(gen, reg), reg, val);
97 
98 	return val;
99 }
100 
101 void rsnd_mod_write(struct rsnd_mod *mod,
102 		    enum rsnd_reg reg, u32 data)
103 {
104 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
105 	struct device *dev = rsnd_priv_to_dev(priv);
106 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
107 
108 	if (!rsnd_is_accessible_reg(priv, gen, reg))
109 		return;
110 
111 	regmap_fields_force_write(gen->regs[reg], rsnd_mod_id_cmd(mod), data);
112 
113 	dev_dbg(dev, "w %s - %-18s (%4d) : %08x\n",
114 		rsnd_mod_name(mod),
115 		rsnd_reg_name(gen, reg), reg, data);
116 }
117 
118 void rsnd_mod_bset(struct rsnd_mod *mod,
119 		   enum rsnd_reg reg, u32 mask, u32 data)
120 {
121 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
122 	struct device *dev = rsnd_priv_to_dev(priv);
123 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
124 
125 	if (!rsnd_is_accessible_reg(priv, gen, reg))
126 		return;
127 
128 	regmap_fields_force_update_bits(gen->regs[reg],
129 					rsnd_mod_id_cmd(mod), mask, data);
130 
131 	dev_dbg(dev, "b %s - %-18s (%4d) : %08x/%08x\n",
132 		rsnd_mod_name(mod),
133 		rsnd_reg_name(gen, reg), reg, data, mask);
134 
135 }
136 
137 phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
138 {
139 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
140 
141 	return	gen->res[reg_id];
142 }
143 
144 #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf)		\
145 	_rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
146 static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
147 				 int id_size,
148 				 int reg_id,
149 				 const char *name,
150 				 const struct rsnd_regmap_field_conf *conf,
151 				 int conf_size)
152 {
153 	struct platform_device *pdev = rsnd_priv_to_pdev(priv);
154 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
155 	struct device *dev = rsnd_priv_to_dev(priv);
156 	struct resource *res;
157 	struct regmap_config regc;
158 	struct regmap_field *regs;
159 	struct regmap *regmap;
160 	struct reg_field regf;
161 	void __iomem *base;
162 	int i;
163 
164 	memset(&regc, 0, sizeof(regc));
165 	regc.reg_bits = 32;
166 	regc.val_bits = 32;
167 	regc.reg_stride = 4;
168 	regc.name = name;
169 
170 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
171 	if (!res)
172 		res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
173 	if (!res)
174 		return -ENODEV;
175 
176 	base = devm_ioremap_resource(dev, res);
177 	if (IS_ERR(base))
178 		return PTR_ERR(base);
179 
180 	regmap = devm_regmap_init_mmio(dev, base, &regc);
181 	if (IS_ERR(regmap))
182 		return PTR_ERR(regmap);
183 
184 	/* RSND_BASE_MAX base */
185 	gen->base[reg_id] = base;
186 	gen->regmap[reg_id] = regmap;
187 	gen->res[reg_id] = res->start;
188 
189 	for (i = 0; i < conf_size; i++) {
190 
191 		regf.reg	= conf[i].reg_offset;
192 		regf.id_offset	= conf[i].id_offset;
193 		regf.lsb	= 0;
194 		regf.msb	= 31;
195 		regf.id_size	= id_size;
196 
197 		regs = devm_regmap_field_alloc(dev, regmap, regf);
198 		if (IS_ERR(regs))
199 			return PTR_ERR(regs);
200 
201 		/* RSND_REG_MAX base */
202 		gen->regs[conf[i].idx] = regs;
203 		gen->reg_name[conf[i].idx] = conf[i].reg_name;
204 	}
205 
206 	return 0;
207 }
208 
209 /*
210  *		Gen2
211  */
212 static int rsnd_gen2_probe(struct rsnd_priv *priv)
213 {
214 	static const struct rsnd_regmap_field_conf conf_ssiu[] = {
215 		RSND_GEN_S_REG(SSI_MODE0,	0x800),
216 		RSND_GEN_S_REG(SSI_MODE1,	0x804),
217 		RSND_GEN_S_REG(SSI_MODE2,	0x808),
218 		RSND_GEN_S_REG(SSI_CONTROL,	0x810),
219 		RSND_GEN_S_REG(SSI_SYS_STATUS0,	0x840),
220 		RSND_GEN_S_REG(SSI_SYS_STATUS1,	0x844),
221 		RSND_GEN_S_REG(SSI_SYS_STATUS2,	0x848),
222 		RSND_GEN_S_REG(SSI_SYS_STATUS3,	0x84c),
223 		RSND_GEN_S_REG(SSI_SYS_STATUS4,	0x880),
224 		RSND_GEN_S_REG(SSI_SYS_STATUS5,	0x884),
225 		RSND_GEN_S_REG(SSI_SYS_STATUS6,	0x888),
226 		RSND_GEN_S_REG(SSI_SYS_STATUS7,	0x88c),
227 		RSND_GEN_S_REG(HDMI0_SEL,	0x9e0),
228 		RSND_GEN_S_REG(HDMI1_SEL,	0x9e4),
229 
230 		/* FIXME: it needs SSI_MODE2/3 in the future */
231 		RSND_GEN_M_REG(SSI_BUSIF0_MODE,		0x0,	0x80),
232 		RSND_GEN_M_REG(SSI_BUSIF0_ADINR,	0x4,	0x80),
233 		RSND_GEN_M_REG(SSI_BUSIF0_DALIGN,	0x8,	0x80),
234 		RSND_GEN_M_REG(SSI_BUSIF1_MODE,		0x20,	0x80),
235 		RSND_GEN_M_REG(SSI_BUSIF1_ADINR,	0x24,	0x80),
236 		RSND_GEN_M_REG(SSI_BUSIF1_DALIGN,	0x28,	0x80),
237 		RSND_GEN_M_REG(SSI_BUSIF2_MODE,		0x40,	0x80),
238 		RSND_GEN_M_REG(SSI_BUSIF2_ADINR,	0x44,	0x80),
239 		RSND_GEN_M_REG(SSI_BUSIF2_DALIGN,	0x48,	0x80),
240 		RSND_GEN_M_REG(SSI_BUSIF3_MODE,		0x60,	0x80),
241 		RSND_GEN_M_REG(SSI_BUSIF3_ADINR,	0x64,	0x80),
242 		RSND_GEN_M_REG(SSI_BUSIF3_DALIGN,	0x68,	0x80),
243 		RSND_GEN_M_REG(SSI_BUSIF4_MODE,		0x500,	0x80),
244 		RSND_GEN_M_REG(SSI_BUSIF4_ADINR,	0x504,	0x80),
245 		RSND_GEN_M_REG(SSI_BUSIF4_DALIGN,	0x508,	0x80),
246 		RSND_GEN_M_REG(SSI_BUSIF5_MODE,		0x520,	0x80),
247 		RSND_GEN_M_REG(SSI_BUSIF5_ADINR,	0x524,	0x80),
248 		RSND_GEN_M_REG(SSI_BUSIF5_DALIGN,	0x528,	0x80),
249 		RSND_GEN_M_REG(SSI_BUSIF6_MODE,		0x540,	0x80),
250 		RSND_GEN_M_REG(SSI_BUSIF6_ADINR,	0x544,	0x80),
251 		RSND_GEN_M_REG(SSI_BUSIF6_DALIGN,	0x548,	0x80),
252 		RSND_GEN_M_REG(SSI_BUSIF7_MODE,		0x560,	0x80),
253 		RSND_GEN_M_REG(SSI_BUSIF7_ADINR,	0x564,	0x80),
254 		RSND_GEN_M_REG(SSI_BUSIF7_DALIGN,	0x568,	0x80),
255 		RSND_GEN_M_REG(SSI_MODE,		0xc,	0x80),
256 		RSND_GEN_M_REG(SSI_CTRL,		0x10,	0x80),
257 		RSND_GEN_M_REG(SSI_INT_ENABLE,		0x18,	0x80),
258 		RSND_GEN_S_REG(SSI9_BUSIF0_MODE,	0x48c),
259 		RSND_GEN_S_REG(SSI9_BUSIF0_ADINR,	0x484),
260 		RSND_GEN_S_REG(SSI9_BUSIF0_DALIGN,	0x488),
261 		RSND_GEN_S_REG(SSI9_BUSIF1_MODE,	0x4a0),
262 		RSND_GEN_S_REG(SSI9_BUSIF1_ADINR,	0x4a4),
263 		RSND_GEN_S_REG(SSI9_BUSIF1_DALIGN,	0x4a8),
264 		RSND_GEN_S_REG(SSI9_BUSIF2_MODE,	0x4c0),
265 		RSND_GEN_S_REG(SSI9_BUSIF2_ADINR,	0x4c4),
266 		RSND_GEN_S_REG(SSI9_BUSIF2_DALIGN,	0x4c8),
267 		RSND_GEN_S_REG(SSI9_BUSIF3_MODE,	0x4e0),
268 		RSND_GEN_S_REG(SSI9_BUSIF3_ADINR,	0x4e4),
269 		RSND_GEN_S_REG(SSI9_BUSIF3_DALIGN,	0x4e8),
270 		RSND_GEN_S_REG(SSI9_BUSIF4_MODE,	0xd80),
271 		RSND_GEN_S_REG(SSI9_BUSIF4_ADINR,	0xd84),
272 		RSND_GEN_S_REG(SSI9_BUSIF4_DALIGN,	0xd88),
273 		RSND_GEN_S_REG(SSI9_BUSIF5_MODE,	0xda0),
274 		RSND_GEN_S_REG(SSI9_BUSIF5_ADINR,	0xda4),
275 		RSND_GEN_S_REG(SSI9_BUSIF5_DALIGN,	0xda8),
276 		RSND_GEN_S_REG(SSI9_BUSIF6_MODE,	0xdc0),
277 		RSND_GEN_S_REG(SSI9_BUSIF6_ADINR,	0xdc4),
278 		RSND_GEN_S_REG(SSI9_BUSIF6_DALIGN,	0xdc8),
279 		RSND_GEN_S_REG(SSI9_BUSIF7_MODE,	0xde0),
280 		RSND_GEN_S_REG(SSI9_BUSIF7_ADINR,	0xde4),
281 		RSND_GEN_S_REG(SSI9_BUSIF7_DALIGN,	0xde8),
282 	};
283 
284 	static const struct rsnd_regmap_field_conf conf_scu[] = {
285 		RSND_GEN_M_REG(SRC_I_BUSIF_MODE,0x0,	0x20),
286 		RSND_GEN_M_REG(SRC_O_BUSIF_MODE,0x4,	0x20),
287 		RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8,	0x20),
288 		RSND_GEN_M_REG(SRC_ROUTE_MODE0,	0xc,	0x20),
289 		RSND_GEN_M_REG(SRC_CTRL,	0x10,	0x20),
290 		RSND_GEN_M_REG(SRC_INT_ENABLE0,	0x18,	0x20),
291 		RSND_GEN_M_REG(CMD_BUSIF_MODE,	0x184,	0x20),
292 		RSND_GEN_M_REG(CMD_BUSIF_DALIGN,0x188,	0x20),
293 		RSND_GEN_M_REG(CMD_ROUTE_SLCT,	0x18c,	0x20),
294 		RSND_GEN_M_REG(CMD_CTRL,	0x190,	0x20),
295 		RSND_GEN_S_REG(SCU_SYS_STATUS0,	0x1c8),
296 		RSND_GEN_S_REG(SCU_SYS_INT_EN0,	0x1cc),
297 		RSND_GEN_S_REG(SCU_SYS_STATUS1,	0x1d0),
298 		RSND_GEN_S_REG(SCU_SYS_INT_EN1,	0x1d4),
299 		RSND_GEN_M_REG(SRC_SWRSR,	0x200,	0x40),
300 		RSND_GEN_M_REG(SRC_SRCIR,	0x204,	0x40),
301 		RSND_GEN_M_REG(SRC_ADINR,	0x214,	0x40),
302 		RSND_GEN_M_REG(SRC_IFSCR,	0x21c,	0x40),
303 		RSND_GEN_M_REG(SRC_IFSVR,	0x220,	0x40),
304 		RSND_GEN_M_REG(SRC_SRCCR,	0x224,	0x40),
305 		RSND_GEN_M_REG(SRC_BSDSR,	0x22c,	0x40),
306 		RSND_GEN_M_REG(SRC_BSISR,	0x238,	0x40),
307 		RSND_GEN_M_REG(CTU_SWRSR,	0x500,	0x100),
308 		RSND_GEN_M_REG(CTU_CTUIR,	0x504,	0x100),
309 		RSND_GEN_M_REG(CTU_ADINR,	0x508,	0x100),
310 		RSND_GEN_M_REG(CTU_CPMDR,	0x510,	0x100),
311 		RSND_GEN_M_REG(CTU_SCMDR,	0x514,	0x100),
312 		RSND_GEN_M_REG(CTU_SV00R,	0x518,	0x100),
313 		RSND_GEN_M_REG(CTU_SV01R,	0x51c,	0x100),
314 		RSND_GEN_M_REG(CTU_SV02R,	0x520,	0x100),
315 		RSND_GEN_M_REG(CTU_SV03R,	0x524,	0x100),
316 		RSND_GEN_M_REG(CTU_SV04R,	0x528,	0x100),
317 		RSND_GEN_M_REG(CTU_SV05R,	0x52c,	0x100),
318 		RSND_GEN_M_REG(CTU_SV06R,	0x530,	0x100),
319 		RSND_GEN_M_REG(CTU_SV07R,	0x534,	0x100),
320 		RSND_GEN_M_REG(CTU_SV10R,	0x538,	0x100),
321 		RSND_GEN_M_REG(CTU_SV11R,	0x53c,	0x100),
322 		RSND_GEN_M_REG(CTU_SV12R,	0x540,	0x100),
323 		RSND_GEN_M_REG(CTU_SV13R,	0x544,	0x100),
324 		RSND_GEN_M_REG(CTU_SV14R,	0x548,	0x100),
325 		RSND_GEN_M_REG(CTU_SV15R,	0x54c,	0x100),
326 		RSND_GEN_M_REG(CTU_SV16R,	0x550,	0x100),
327 		RSND_GEN_M_REG(CTU_SV17R,	0x554,	0x100),
328 		RSND_GEN_M_REG(CTU_SV20R,	0x558,	0x100),
329 		RSND_GEN_M_REG(CTU_SV21R,	0x55c,	0x100),
330 		RSND_GEN_M_REG(CTU_SV22R,	0x560,	0x100),
331 		RSND_GEN_M_REG(CTU_SV23R,	0x564,	0x100),
332 		RSND_GEN_M_REG(CTU_SV24R,	0x568,	0x100),
333 		RSND_GEN_M_REG(CTU_SV25R,	0x56c,	0x100),
334 		RSND_GEN_M_REG(CTU_SV26R,	0x570,	0x100),
335 		RSND_GEN_M_REG(CTU_SV27R,	0x574,	0x100),
336 		RSND_GEN_M_REG(CTU_SV30R,	0x578,	0x100),
337 		RSND_GEN_M_REG(CTU_SV31R,	0x57c,	0x100),
338 		RSND_GEN_M_REG(CTU_SV32R,	0x580,	0x100),
339 		RSND_GEN_M_REG(CTU_SV33R,	0x584,	0x100),
340 		RSND_GEN_M_REG(CTU_SV34R,	0x588,	0x100),
341 		RSND_GEN_M_REG(CTU_SV35R,	0x58c,	0x100),
342 		RSND_GEN_M_REG(CTU_SV36R,	0x590,	0x100),
343 		RSND_GEN_M_REG(CTU_SV37R,	0x594,	0x100),
344 		RSND_GEN_M_REG(MIX_SWRSR,	0xd00,	0x40),
345 		RSND_GEN_M_REG(MIX_MIXIR,	0xd04,	0x40),
346 		RSND_GEN_M_REG(MIX_ADINR,	0xd08,	0x40),
347 		RSND_GEN_M_REG(MIX_MIXMR,	0xd10,	0x40),
348 		RSND_GEN_M_REG(MIX_MVPDR,	0xd14,	0x40),
349 		RSND_GEN_M_REG(MIX_MDBAR,	0xd18,	0x40),
350 		RSND_GEN_M_REG(MIX_MDBBR,	0xd1c,	0x40),
351 		RSND_GEN_M_REG(MIX_MDBCR,	0xd20,	0x40),
352 		RSND_GEN_M_REG(MIX_MDBDR,	0xd24,	0x40),
353 		RSND_GEN_M_REG(MIX_MDBER,	0xd28,	0x40),
354 		RSND_GEN_M_REG(DVC_SWRSR,	0xe00,	0x100),
355 		RSND_GEN_M_REG(DVC_DVUIR,	0xe04,	0x100),
356 		RSND_GEN_M_REG(DVC_ADINR,	0xe08,	0x100),
357 		RSND_GEN_M_REG(DVC_DVUCR,	0xe10,	0x100),
358 		RSND_GEN_M_REG(DVC_ZCMCR,	0xe14,	0x100),
359 		RSND_GEN_M_REG(DVC_VRCTR,	0xe18,	0x100),
360 		RSND_GEN_M_REG(DVC_VRPDR,	0xe1c,	0x100),
361 		RSND_GEN_M_REG(DVC_VRDBR,	0xe20,	0x100),
362 		RSND_GEN_M_REG(DVC_VOL0R,	0xe28,	0x100),
363 		RSND_GEN_M_REG(DVC_VOL1R,	0xe2c,	0x100),
364 		RSND_GEN_M_REG(DVC_VOL2R,	0xe30,	0x100),
365 		RSND_GEN_M_REG(DVC_VOL3R,	0xe34,	0x100),
366 		RSND_GEN_M_REG(DVC_VOL4R,	0xe38,	0x100),
367 		RSND_GEN_M_REG(DVC_VOL5R,	0xe3c,	0x100),
368 		RSND_GEN_M_REG(DVC_VOL6R,	0xe40,	0x100),
369 		RSND_GEN_M_REG(DVC_VOL7R,	0xe44,	0x100),
370 		RSND_GEN_M_REG(DVC_DVUER,	0xe48,	0x100),
371 	};
372 	static const struct rsnd_regmap_field_conf conf_adg[] = {
373 		RSND_GEN_S_REG(BRRA,		0x00),
374 		RSND_GEN_S_REG(BRRB,		0x04),
375 		RSND_GEN_S_REG(BRGCKR,		0x08),
376 		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
377 		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
378 		RSND_GEN_S_REG(AUDIO_CLK_SEL2,	0x14),
379 		RSND_GEN_S_REG(DIV_EN,		0x30),
380 		RSND_GEN_S_REG(SRCIN_TIMSEL0,	0x34),
381 		RSND_GEN_S_REG(SRCIN_TIMSEL1,	0x38),
382 		RSND_GEN_S_REG(SRCIN_TIMSEL2,	0x3c),
383 		RSND_GEN_S_REG(SRCIN_TIMSEL3,	0x40),
384 		RSND_GEN_S_REG(SRCIN_TIMSEL4,	0x44),
385 		RSND_GEN_S_REG(SRCOUT_TIMSEL0,	0x48),
386 		RSND_GEN_S_REG(SRCOUT_TIMSEL1,	0x4c),
387 		RSND_GEN_S_REG(SRCOUT_TIMSEL2,	0x50),
388 		RSND_GEN_S_REG(SRCOUT_TIMSEL3,	0x54),
389 		RSND_GEN_S_REG(SRCOUT_TIMSEL4,	0x58),
390 		RSND_GEN_S_REG(CMDOUT_TIMSEL,	0x5c),
391 	};
392 	static const struct rsnd_regmap_field_conf conf_ssi[] = {
393 		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
394 		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
395 		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
396 		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
397 		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
398 	};
399 	int ret_ssiu;
400 	int ret_scu;
401 	int ret_adg;
402 	int ret_ssi;
403 
404 	ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
405 	ret_scu  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU,  "scu",  conf_scu);
406 	ret_adg  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG,  "adg",  conf_adg);
407 	ret_ssi  = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI,  "ssi",  conf_ssi);
408 	if (ret_ssiu < 0 ||
409 	    ret_scu  < 0 ||
410 	    ret_adg  < 0 ||
411 	    ret_ssi  < 0)
412 		return ret_ssiu | ret_scu | ret_adg | ret_ssi;
413 
414 	return 0;
415 }
416 
417 /*
418  *		Gen1
419  */
420 
421 static int rsnd_gen1_probe(struct rsnd_priv *priv)
422 {
423 	static const struct rsnd_regmap_field_conf conf_adg[] = {
424 		RSND_GEN_S_REG(BRRA,		0x00),
425 		RSND_GEN_S_REG(BRRB,		0x04),
426 		RSND_GEN_S_REG(BRGCKR,		0x08),
427 		RSND_GEN_S_REG(AUDIO_CLK_SEL0,	0x0c),
428 		RSND_GEN_S_REG(AUDIO_CLK_SEL1,	0x10),
429 	};
430 	static const struct rsnd_regmap_field_conf conf_ssi[] = {
431 		RSND_GEN_M_REG(SSICR,		0x00,	0x40),
432 		RSND_GEN_M_REG(SSISR,		0x04,	0x40),
433 		RSND_GEN_M_REG(SSITDR,		0x08,	0x40),
434 		RSND_GEN_M_REG(SSIRDR,		0x0c,	0x40),
435 		RSND_GEN_M_REG(SSIWSR,		0x20,	0x40),
436 	};
437 	int ret_adg;
438 	int ret_ssi;
439 
440 	ret_adg  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
441 	ret_ssi  = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
442 	if (ret_adg  < 0 ||
443 	    ret_ssi  < 0)
444 		return ret_adg | ret_ssi;
445 
446 	return 0;
447 }
448 
449 /*
450  *		Gen
451  */
452 int rsnd_gen_probe(struct rsnd_priv *priv)
453 {
454 	struct device *dev = rsnd_priv_to_dev(priv);
455 	struct rsnd_gen *gen;
456 	int ret;
457 
458 	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
459 	if (!gen)
460 		return -ENOMEM;
461 
462 	priv->gen = gen;
463 
464 	ret = -ENODEV;
465 	if (rsnd_is_gen1(priv))
466 		ret = rsnd_gen1_probe(priv);
467 	else if (rsnd_is_gen2(priv) ||
468 		 rsnd_is_gen3(priv))
469 		ret = rsnd_gen2_probe(priv);
470 
471 	if (ret < 0)
472 		dev_err(dev, "unknown generation R-Car sound device\n");
473 
474 	return ret;
475 }
476