1 /* 2 * Renesas R-Car SSIU/SSI support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * Based on fsi.c 8 * Kuninori Morimoto <morimoto.kuninori@renesas.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 #include <linux/delay.h> 15 #include "rsnd.h" 16 #define RSND_SSI_NAME_SIZE 16 17 18 /* 19 * SSICR 20 */ 21 #define FORCE (1 << 31) /* Fixed */ 22 #define DMEN (1 << 28) /* DMA Enable */ 23 #define UIEN (1 << 27) /* Underflow Interrupt Enable */ 24 #define OIEN (1 << 26) /* Overflow Interrupt Enable */ 25 #define IIEN (1 << 25) /* Idle Mode Interrupt Enable */ 26 #define DIEN (1 << 24) /* Data Interrupt Enable */ 27 28 #define DWL_8 (0 << 19) /* Data Word Length */ 29 #define DWL_16 (1 << 19) /* Data Word Length */ 30 #define DWL_18 (2 << 19) /* Data Word Length */ 31 #define DWL_20 (3 << 19) /* Data Word Length */ 32 #define DWL_22 (4 << 19) /* Data Word Length */ 33 #define DWL_24 (5 << 19) /* Data Word Length */ 34 #define DWL_32 (6 << 19) /* Data Word Length */ 35 36 #define SWL_32 (3 << 16) /* R/W System Word Length */ 37 #define SCKD (1 << 15) /* Serial Bit Clock Direction */ 38 #define SWSD (1 << 14) /* Serial WS Direction */ 39 #define SCKP (1 << 13) /* Serial Bit Clock Polarity */ 40 #define SWSP (1 << 12) /* Serial WS Polarity */ 41 #define SDTA (1 << 10) /* Serial Data Alignment */ 42 #define DEL (1 << 8) /* Serial Data Delay */ 43 #define CKDV(v) (v << 4) /* Serial Clock Division Ratio */ 44 #define TRMD (1 << 1) /* Transmit/Receive Mode Select */ 45 #define EN (1 << 0) /* SSI Module Enable */ 46 47 /* 48 * SSISR 49 */ 50 #define UIRQ (1 << 27) /* Underflow Error Interrupt Status */ 51 #define OIRQ (1 << 26) /* Overflow Error Interrupt Status */ 52 #define IIRQ (1 << 25) /* Idle Mode Interrupt Status */ 53 #define DIRQ (1 << 24) /* Data Interrupt Status Flag */ 54 55 /* 56 * SSIWSR 57 */ 58 #define CONT (1 << 8) /* WS Continue Function */ 59 60 #define SSI_NAME "ssi" 61 62 struct rsnd_ssi { 63 struct clk *clk; 64 struct rsnd_ssi_platform_info *info; /* rcar_snd.h */ 65 struct rsnd_ssi *parent; 66 struct rsnd_mod mod; 67 68 struct rsnd_dai *rdai; 69 u32 cr_own; 70 u32 cr_clk; 71 u32 cr_etc; 72 int err; 73 unsigned int usrcnt; 74 unsigned int rate; 75 }; 76 77 #define for_each_rsnd_ssi(pos, priv, i) \ 78 for (i = 0; \ 79 (i < rsnd_ssi_nr(priv)) && \ 80 ((pos) = ((struct rsnd_ssi *)(priv)->ssi + i)); \ 81 i++) 82 83 #define rsnd_ssi_nr(priv) ((priv)->ssi_nr) 84 #define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod) 85 #define rsnd_dma_to_ssi(dma) rsnd_mod_to_ssi(rsnd_dma_to_mod(dma)) 86 #define rsnd_ssi_pio_available(ssi) ((ssi)->info->pio_irq > 0) 87 #define rsnd_ssi_dma_available(ssi) \ 88 rsnd_dma_available(rsnd_mod_to_dma(&(ssi)->mod)) 89 #define rsnd_ssi_clk_from_parent(ssi) ((ssi)->parent) 90 #define rsnd_ssi_mode_flags(p) ((p)->info->flags) 91 #define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id) 92 93 static int rsnd_ssi_use_busif(struct rsnd_mod *mod) 94 { 95 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 96 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 97 int use_busif = 0; 98 99 if (!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_NO_BUSIF)) 100 use_busif = 1; 101 if (rsnd_io_to_mod_src(io)) 102 use_busif = 1; 103 104 return use_busif; 105 } 106 107 static void rsnd_ssi_status_check(struct rsnd_mod *mod, 108 u32 bit) 109 { 110 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 111 struct device *dev = rsnd_priv_to_dev(priv); 112 u32 status; 113 int i; 114 115 for (i = 0; i < 1024; i++) { 116 status = rsnd_mod_read(mod, SSISR); 117 if (status & bit) 118 return; 119 120 udelay(50); 121 } 122 123 dev_warn(dev, "status check failed\n"); 124 } 125 126 static int rsnd_ssi_master_clk_start(struct rsnd_ssi *ssi, 127 struct rsnd_dai_stream *io) 128 { 129 struct rsnd_priv *priv = rsnd_mod_to_priv(&ssi->mod); 130 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 131 struct device *dev = rsnd_priv_to_dev(priv); 132 int i, j, ret; 133 int adg_clk_div_table[] = { 134 1, 6, /* see adg.c */ 135 }; 136 int ssi_clk_mul_table[] = { 137 1, 2, 4, 8, 16, 6, 12, 138 }; 139 unsigned int main_rate; 140 unsigned int rate = rsnd_src_get_ssi_rate(priv, io, runtime); 141 142 /* 143 * Find best clock, and try to start ADG 144 */ 145 for (i = 0; i < ARRAY_SIZE(adg_clk_div_table); i++) { 146 for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) { 147 148 /* 149 * this driver is assuming that 150 * system word is 64fs (= 2 x 32bit) 151 * see rsnd_ssi_init() 152 */ 153 main_rate = rate / adg_clk_div_table[i] 154 * 32 * 2 * ssi_clk_mul_table[j]; 155 156 ret = rsnd_adg_ssi_clk_try_start(&ssi->mod, main_rate); 157 if (0 == ret) { 158 ssi->rate = rate; 159 ssi->cr_clk = FORCE | SWL_32 | 160 SCKD | SWSD | CKDV(j); 161 162 dev_dbg(dev, "ssi%d outputs %u Hz\n", 163 rsnd_mod_id(&ssi->mod), rate); 164 165 return 0; 166 } 167 } 168 } 169 170 dev_err(dev, "unsupported clock rate\n"); 171 return -EIO; 172 } 173 174 static void rsnd_ssi_master_clk_stop(struct rsnd_ssi *ssi) 175 { 176 ssi->rate = 0; 177 ssi->cr_clk = 0; 178 rsnd_adg_ssi_clk_stop(&ssi->mod); 179 } 180 181 static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi, 182 struct rsnd_dai *rdai, 183 struct rsnd_dai_stream *io) 184 { 185 struct rsnd_priv *priv = rsnd_mod_to_priv(&ssi->mod); 186 struct device *dev = rsnd_priv_to_dev(priv); 187 u32 cr; 188 189 if (0 == ssi->usrcnt) { 190 clk_prepare_enable(ssi->clk); 191 192 if (rsnd_dai_is_clk_master(rdai)) { 193 if (rsnd_ssi_clk_from_parent(ssi)) 194 rsnd_ssi_hw_start(ssi->parent, rdai, io); 195 else 196 rsnd_ssi_master_clk_start(ssi, io); 197 } 198 } 199 200 cr = ssi->cr_own | 201 ssi->cr_clk | 202 ssi->cr_etc | 203 EN; 204 205 rsnd_mod_write(&ssi->mod, SSICR, cr); 206 207 ssi->usrcnt++; 208 209 dev_dbg(dev, "ssi%d hw started\n", rsnd_mod_id(&ssi->mod)); 210 } 211 212 static void rsnd_ssi_hw_stop(struct rsnd_ssi *ssi, 213 struct rsnd_dai *rdai) 214 { 215 struct rsnd_priv *priv = rsnd_mod_to_priv(&ssi->mod); 216 struct device *dev = rsnd_priv_to_dev(priv); 217 u32 cr; 218 219 if (0 == ssi->usrcnt) /* stop might be called without start */ 220 return; 221 222 ssi->usrcnt--; 223 224 if (0 == ssi->usrcnt) { 225 /* 226 * disable all IRQ, 227 * and, wait all data was sent 228 */ 229 cr = ssi->cr_own | 230 ssi->cr_clk; 231 232 rsnd_mod_write(&ssi->mod, SSICR, cr | EN); 233 rsnd_ssi_status_check(&ssi->mod, DIRQ); 234 235 /* 236 * disable SSI, 237 * and, wait idle state 238 */ 239 rsnd_mod_write(&ssi->mod, SSICR, cr); /* disabled all */ 240 rsnd_ssi_status_check(&ssi->mod, IIRQ); 241 242 if (rsnd_dai_is_clk_master(rdai)) { 243 if (rsnd_ssi_clk_from_parent(ssi)) 244 rsnd_ssi_hw_stop(ssi->parent, rdai); 245 else 246 rsnd_ssi_master_clk_stop(ssi); 247 } 248 249 clk_disable_unprepare(ssi->clk); 250 } 251 252 dev_dbg(dev, "ssi%d hw stopped\n", rsnd_mod_id(&ssi->mod)); 253 } 254 255 /* 256 * SSI mod common functions 257 */ 258 static int rsnd_ssi_init(struct rsnd_mod *mod, 259 struct rsnd_dai *rdai) 260 { 261 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 262 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 263 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 264 u32 cr; 265 266 cr = FORCE; 267 268 /* 269 * always use 32bit system word for easy clock calculation. 270 * see also rsnd_ssi_master_clk_enable() 271 */ 272 cr |= SWL_32; 273 274 /* 275 * init clock settings for SSICR 276 */ 277 switch (runtime->sample_bits) { 278 case 16: 279 cr |= DWL_16; 280 break; 281 case 32: 282 cr |= DWL_24; 283 break; 284 default: 285 return -EIO; 286 } 287 288 if (rdai->bit_clk_inv) 289 cr |= SCKP; 290 if (rdai->frm_clk_inv) 291 cr |= SWSP; 292 if (rdai->data_alignment) 293 cr |= SDTA; 294 if (rdai->sys_delay) 295 cr |= DEL; 296 if (rsnd_dai_is_play(rdai, io)) 297 cr |= TRMD; 298 299 /* 300 * set ssi parameter 301 */ 302 ssi->rdai = rdai; 303 ssi->cr_own = cr; 304 ssi->err = -1; /* ignore 1st error */ 305 306 return 0; 307 } 308 309 static int rsnd_ssi_quit(struct rsnd_mod *mod, 310 struct rsnd_dai *rdai) 311 { 312 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 313 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 314 struct device *dev = rsnd_priv_to_dev(priv); 315 316 if (ssi->err > 0) 317 dev_warn(dev, "ssi under/over flow err = %d\n", ssi->err); 318 319 ssi->rdai = NULL; 320 ssi->cr_own = 0; 321 ssi->err = 0; 322 323 return 0; 324 } 325 326 static void rsnd_ssi_record_error(struct rsnd_ssi *ssi, u32 status) 327 { 328 /* under/over flow error */ 329 if (status & (UIRQ | OIRQ)) { 330 ssi->err++; 331 332 /* clear error status */ 333 rsnd_mod_write(&ssi->mod, SSISR, 0); 334 } 335 } 336 337 /* 338 * SSI PIO 339 */ 340 static irqreturn_t rsnd_ssi_pio_interrupt(int irq, void *data) 341 { 342 struct rsnd_ssi *ssi = data; 343 struct rsnd_mod *mod = &ssi->mod; 344 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 345 u32 status = rsnd_mod_read(mod, SSISR); 346 irqreturn_t ret = IRQ_NONE; 347 348 if (io && (status & DIRQ)) { 349 struct rsnd_dai *rdai = ssi->rdai; 350 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 351 u32 *buf = (u32 *)(runtime->dma_area + 352 rsnd_dai_pointer_offset(io, 0)); 353 354 rsnd_ssi_record_error(ssi, status); 355 356 /* 357 * 8/16/32 data can be assesse to TDR/RDR register 358 * directly as 32bit data 359 * see rsnd_ssi_init() 360 */ 361 if (rsnd_dai_is_play(rdai, io)) 362 rsnd_mod_write(mod, SSITDR, *buf); 363 else 364 *buf = rsnd_mod_read(mod, SSIRDR); 365 366 rsnd_dai_pointer_update(io, sizeof(*buf)); 367 368 ret = IRQ_HANDLED; 369 } 370 371 return ret; 372 } 373 374 static int rsnd_ssi_pio_probe(struct rsnd_mod *mod, 375 struct rsnd_dai *rdai) 376 { 377 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 378 struct device *dev = rsnd_priv_to_dev(priv); 379 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 380 int irq = ssi->info->pio_irq; 381 int ret; 382 383 ret = devm_request_irq(dev, irq, 384 rsnd_ssi_pio_interrupt, 385 IRQF_SHARED, 386 dev_name(dev), ssi); 387 if (ret) 388 dev_err(dev, "SSI request interrupt failed\n"); 389 390 dev_dbg(dev, "%s (PIO) is probed\n", rsnd_mod_name(mod)); 391 392 return ret; 393 } 394 395 static int rsnd_ssi_pio_start(struct rsnd_mod *mod, 396 struct rsnd_dai *rdai) 397 { 398 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 399 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 400 401 /* enable PIO IRQ */ 402 ssi->cr_etc = UIEN | OIEN | DIEN; 403 404 rsnd_src_ssiu_start(mod, rdai, 0); 405 406 rsnd_src_enable_ssi_irq(mod, rdai); 407 408 rsnd_ssi_hw_start(ssi, rdai, io); 409 410 return 0; 411 } 412 413 static int rsnd_ssi_pio_stop(struct rsnd_mod *mod, 414 struct rsnd_dai *rdai) 415 { 416 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 417 418 ssi->cr_etc = 0; 419 420 rsnd_ssi_hw_stop(ssi, rdai); 421 422 rsnd_src_ssiu_stop(mod, rdai, 0); 423 424 return 0; 425 } 426 427 static struct rsnd_mod_ops rsnd_ssi_pio_ops = { 428 .name = SSI_NAME, 429 .probe = rsnd_ssi_pio_probe, 430 .init = rsnd_ssi_init, 431 .quit = rsnd_ssi_quit, 432 .start = rsnd_ssi_pio_start, 433 .stop = rsnd_ssi_pio_stop, 434 }; 435 436 static int rsnd_ssi_dma_probe(struct rsnd_mod *mod, 437 struct rsnd_dai *rdai) 438 { 439 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 440 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 441 struct device *dev = rsnd_priv_to_dev(priv); 442 int dma_id = ssi->info->dma_id; 443 int ret; 444 445 ret = rsnd_dma_init( 446 priv, rsnd_mod_to_dma(mod), 447 rsnd_info_is_playback(priv, ssi), 448 dma_id); 449 450 if (ret < 0) 451 dev_err(dev, "SSI DMA failed\n"); 452 453 dev_dbg(dev, "%s (DMA) is probed\n", rsnd_mod_name(mod)); 454 455 return ret; 456 } 457 458 static int rsnd_ssi_dma_remove(struct rsnd_mod *mod, 459 struct rsnd_dai *rdai) 460 { 461 rsnd_dma_quit(rsnd_mod_to_priv(mod), rsnd_mod_to_dma(mod)); 462 463 return 0; 464 } 465 466 static int rsnd_ssi_dma_start(struct rsnd_mod *mod, 467 struct rsnd_dai *rdai) 468 { 469 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 470 struct rsnd_dma *dma = rsnd_mod_to_dma(&ssi->mod); 471 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); 472 473 /* enable DMA transfer */ 474 ssi->cr_etc = DMEN; 475 476 rsnd_src_ssiu_start(mod, rdai, rsnd_ssi_use_busif(mod)); 477 478 rsnd_dma_start(dma); 479 480 rsnd_ssi_hw_start(ssi, ssi->rdai, io); 481 482 /* enable WS continue */ 483 if (rsnd_dai_is_clk_master(rdai)) 484 rsnd_mod_write(&ssi->mod, SSIWSR, CONT); 485 486 return 0; 487 } 488 489 static int rsnd_ssi_dma_stop(struct rsnd_mod *mod, 490 struct rsnd_dai *rdai) 491 { 492 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 493 struct rsnd_dma *dma = rsnd_mod_to_dma(&ssi->mod); 494 495 ssi->cr_etc = 0; 496 497 rsnd_ssi_record_error(ssi, rsnd_mod_read(mod, SSISR)); 498 499 rsnd_ssi_hw_stop(ssi, rdai); 500 501 rsnd_dma_stop(dma); 502 503 rsnd_src_ssiu_stop(mod, rdai, 1); 504 505 return 0; 506 } 507 508 static char *rsnd_ssi_dma_name(struct rsnd_mod *mod) 509 { 510 return rsnd_ssi_use_busif(mod) ? "ssiu" : SSI_NAME; 511 } 512 513 static struct rsnd_mod_ops rsnd_ssi_dma_ops = { 514 .name = SSI_NAME, 515 .dma_name = rsnd_ssi_dma_name, 516 .probe = rsnd_ssi_dma_probe, 517 .remove = rsnd_ssi_dma_remove, 518 .init = rsnd_ssi_init, 519 .quit = rsnd_ssi_quit, 520 .start = rsnd_ssi_dma_start, 521 .stop = rsnd_ssi_dma_stop, 522 }; 523 524 /* 525 * Non SSI 526 */ 527 static struct rsnd_mod_ops rsnd_ssi_non_ops = { 528 .name = SSI_NAME, 529 }; 530 531 /* 532 * ssi mod function 533 */ 534 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id) 535 { 536 if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv))) 537 id = 0; 538 539 return &((struct rsnd_ssi *)(priv->ssi) + id)->mod; 540 } 541 542 int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod) 543 { 544 struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); 545 546 return !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_CLK_PIN_SHARE); 547 } 548 549 static void rsnd_ssi_parent_clk_setup(struct rsnd_priv *priv, struct rsnd_ssi *ssi) 550 { 551 if (!rsnd_ssi_is_pin_sharing(&ssi->mod)) 552 return; 553 554 switch (rsnd_mod_id(&ssi->mod)) { 555 case 1: 556 case 2: 557 ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 0)); 558 break; 559 case 4: 560 ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 3)); 561 break; 562 case 8: 563 ssi->parent = rsnd_mod_to_ssi(rsnd_ssi_mod_get(priv, 7)); 564 break; 565 } 566 } 567 568 569 static void rsnd_of_parse_ssi(struct platform_device *pdev, 570 const struct rsnd_of_data *of_data, 571 struct rsnd_priv *priv) 572 { 573 struct device_node *node; 574 struct device_node *np; 575 struct rsnd_ssi_platform_info *ssi_info; 576 struct rcar_snd_info *info = rsnd_priv_to_info(priv); 577 struct device *dev = &pdev->dev; 578 int nr, i; 579 580 if (!of_data) 581 return; 582 583 node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi"); 584 if (!node) 585 return; 586 587 nr = of_get_child_count(node); 588 if (!nr) 589 goto rsnd_of_parse_ssi_end; 590 591 ssi_info = devm_kzalloc(dev, 592 sizeof(struct rsnd_ssi_platform_info) * nr, 593 GFP_KERNEL); 594 if (!ssi_info) { 595 dev_err(dev, "ssi info allocation error\n"); 596 goto rsnd_of_parse_ssi_end; 597 } 598 599 info->ssi_info = ssi_info; 600 info->ssi_info_nr = nr; 601 602 i = -1; 603 for_each_child_of_node(node, np) { 604 i++; 605 606 ssi_info = info->ssi_info + i; 607 608 /* 609 * pin settings 610 */ 611 if (of_get_property(np, "shared-pin", NULL)) 612 ssi_info->flags |= RSND_SSI_CLK_PIN_SHARE; 613 614 /* 615 * irq 616 */ 617 ssi_info->pio_irq = irq_of_parse_and_map(np, 0); 618 619 /* 620 * DMA 621 */ 622 ssi_info->dma_id = of_get_property(np, "pio-transfer", NULL) ? 623 0 : 1; 624 625 if (of_get_property(np, "no-busif", NULL)) 626 ssi_info->flags |= RSND_SSI_NO_BUSIF; 627 } 628 629 rsnd_of_parse_ssi_end: 630 of_node_put(node); 631 } 632 633 int rsnd_ssi_probe(struct platform_device *pdev, 634 const struct rsnd_of_data *of_data, 635 struct rsnd_priv *priv) 636 { 637 struct rcar_snd_info *info = rsnd_priv_to_info(priv); 638 struct rsnd_ssi_platform_info *pinfo; 639 struct device *dev = rsnd_priv_to_dev(priv); 640 struct rsnd_mod_ops *ops; 641 struct clk *clk; 642 struct rsnd_ssi *ssi; 643 char name[RSND_SSI_NAME_SIZE]; 644 int i, nr; 645 646 rsnd_of_parse_ssi(pdev, of_data, priv); 647 648 /* 649 * init SSI 650 */ 651 nr = info->ssi_info_nr; 652 ssi = devm_kzalloc(dev, sizeof(*ssi) * nr, GFP_KERNEL); 653 if (!ssi) { 654 dev_err(dev, "SSI allocate failed\n"); 655 return -ENOMEM; 656 } 657 658 priv->ssi = ssi; 659 priv->ssi_nr = nr; 660 661 for_each_rsnd_ssi(ssi, priv, i) { 662 pinfo = &info->ssi_info[i]; 663 664 snprintf(name, RSND_SSI_NAME_SIZE, "%s.%d", 665 SSI_NAME, i); 666 667 clk = devm_clk_get(dev, name); 668 if (IS_ERR(clk)) 669 return PTR_ERR(clk); 670 671 ssi->info = pinfo; 672 ssi->clk = clk; 673 674 ops = &rsnd_ssi_non_ops; 675 if (pinfo->dma_id > 0) 676 ops = &rsnd_ssi_dma_ops; 677 else if (rsnd_ssi_pio_available(ssi)) 678 ops = &rsnd_ssi_pio_ops; 679 680 rsnd_mod_init(priv, &ssi->mod, ops, RSND_MOD_SSI, i); 681 682 rsnd_ssi_parent_clk_setup(priv, ssi); 683 } 684 685 return 0; 686 } 687