1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Freescale Generic ASoC Sound Card driver with ASRC 4 // 5 // Copyright (C) 2014 Freescale Semiconductor, Inc. 6 // 7 // Author: Nicolin Chen <nicoleotsuka@gmail.com> 8 9 #include <linux/clk.h> 10 #include <linux/i2c.h> 11 #include <linux/module.h> 12 #include <linux/of_platform.h> 13 #if IS_ENABLED(CONFIG_SND_AC97_CODEC) 14 #include <sound/ac97_codec.h> 15 #endif 16 #include <sound/pcm_params.h> 17 #include <sound/soc.h> 18 #include <sound/jack.h> 19 #include <sound/simple_card_utils.h> 20 21 #include "fsl_esai.h" 22 #include "fsl_sai.h" 23 #include "imx-audmux.h" 24 25 #include "../codecs/sgtl5000.h" 26 #include "../codecs/wm8962.h" 27 #include "../codecs/wm8960.h" 28 #include "../codecs/wm8994.h" 29 #include "../codecs/tlv320aic31xx.h" 30 #include "../codecs/nau8822.h" 31 32 #define DRIVER_NAME "fsl-asoc-card" 33 34 #define CS427x_SYSCLK_MCLK 0 35 36 #define RX 0 37 #define TX 1 38 39 /* Default DAI format without Master and Slave flag */ 40 #define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF) 41 42 /** 43 * struct codec_priv - CODEC private data 44 * @mclk: Main clock of the CODEC 45 * @mclk_freq: Clock rate of MCLK 46 * @free_freq: Clock rate of MCLK for hw_free() 47 * @mclk_id: MCLK (or main clock) id for set_sysclk() 48 * @fll_id: FLL (or secordary clock) id for set_sysclk() 49 * @pll_id: PLL id for set_pll() 50 */ 51 struct codec_priv { 52 struct clk *mclk; 53 unsigned long mclk_freq; 54 unsigned long free_freq; 55 u32 mclk_id; 56 int fll_id; 57 int pll_id; 58 }; 59 60 /** 61 * struct cpu_priv - CPU private data 62 * @sysclk_freq: SYSCLK rates for set_sysclk() 63 * @sysclk_dir: SYSCLK directions for set_sysclk() 64 * @sysclk_id: SYSCLK ids for set_sysclk() 65 * @slot_width: Slot width of each frame 66 * @slot_num: Number of slots of each frame 67 * 68 * Note: [1] for tx and [0] for rx 69 */ 70 struct cpu_priv { 71 unsigned long sysclk_freq[2]; 72 u32 sysclk_dir[2]; 73 u32 sysclk_id[2]; 74 u32 slot_width; 75 u32 slot_num; 76 }; 77 78 /** 79 * struct fsl_asoc_card_priv - Freescale Generic ASOC card private data 80 * @dai_link: DAI link structure including normal one and DPCM link 81 * @hp_jack: Headphone Jack structure 82 * @mic_jack: Microphone Jack structure 83 * @pdev: platform device pointer 84 * @codec_priv: CODEC private data 85 * @cpu_priv: CPU private data 86 * @card: ASoC card structure 87 * @streams: Mask of current active streams 88 * @sample_rate: Current sample rate 89 * @sample_format: Current sample format 90 * @asrc_rate: ASRC sample rate used by Back-Ends 91 * @asrc_format: ASRC sample format used by Back-Ends 92 * @dai_fmt: DAI format between CPU and CODEC 93 * @name: Card name 94 */ 95 96 struct fsl_asoc_card_priv { 97 struct snd_soc_dai_link dai_link[3]; 98 struct asoc_simple_jack hp_jack; 99 struct asoc_simple_jack mic_jack; 100 struct platform_device *pdev; 101 struct codec_priv codec_priv; 102 struct cpu_priv cpu_priv; 103 struct snd_soc_card card; 104 u8 streams; 105 u32 sample_rate; 106 snd_pcm_format_t sample_format; 107 u32 asrc_rate; 108 snd_pcm_format_t asrc_format; 109 u32 dai_fmt; 110 char name[32]; 111 }; 112 113 /* 114 * This dapm route map exists for DPCM link only. 115 * The other routes shall go through Device Tree. 116 * 117 * Note: keep all ASRC routes in the second half 118 * to drop them easily for non-ASRC cases. 119 */ 120 static const struct snd_soc_dapm_route audio_map[] = { 121 /* 1st half -- Normal DAPM routes */ 122 {"Playback", NULL, "CPU-Playback"}, 123 {"CPU-Capture", NULL, "Capture"}, 124 /* 2nd half -- ASRC DAPM routes */ 125 {"CPU-Playback", NULL, "ASRC-Playback"}, 126 {"ASRC-Capture", NULL, "CPU-Capture"}, 127 }; 128 129 static const struct snd_soc_dapm_route audio_map_ac97[] = { 130 /* 1st half -- Normal DAPM routes */ 131 {"AC97 Playback", NULL, "CPU AC97 Playback"}, 132 {"CPU AC97 Capture", NULL, "AC97 Capture"}, 133 /* 2nd half -- ASRC DAPM routes */ 134 {"CPU AC97 Playback", NULL, "ASRC-Playback"}, 135 {"ASRC-Capture", NULL, "CPU AC97 Capture"}, 136 }; 137 138 static const struct snd_soc_dapm_route audio_map_tx[] = { 139 /* 1st half -- Normal DAPM routes */ 140 {"Playback", NULL, "CPU-Playback"}, 141 /* 2nd half -- ASRC DAPM routes */ 142 {"CPU-Playback", NULL, "ASRC-Playback"}, 143 }; 144 145 static const struct snd_soc_dapm_route audio_map_rx[] = { 146 /* 1st half -- Normal DAPM routes */ 147 {"CPU-Capture", NULL, "Capture"}, 148 /* 2nd half -- ASRC DAPM routes */ 149 {"ASRC-Capture", NULL, "CPU-Capture"}, 150 }; 151 152 /* Add all possible widgets into here without being redundant */ 153 static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = { 154 SND_SOC_DAPM_LINE("Line Out Jack", NULL), 155 SND_SOC_DAPM_LINE("Line In Jack", NULL), 156 SND_SOC_DAPM_HP("Headphone Jack", NULL), 157 SND_SOC_DAPM_SPK("Ext Spk", NULL), 158 SND_SOC_DAPM_MIC("Mic Jack", NULL), 159 SND_SOC_DAPM_MIC("AMIC", NULL), 160 SND_SOC_DAPM_MIC("DMIC", NULL), 161 }; 162 163 static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv) 164 { 165 return priv->dai_fmt == SND_SOC_DAIFMT_AC97; 166 } 167 168 static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream, 169 struct snd_pcm_hw_params *params) 170 { 171 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 172 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); 173 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 174 struct codec_priv *codec_priv = &priv->codec_priv; 175 struct cpu_priv *cpu_priv = &priv->cpu_priv; 176 struct device *dev = rtd->card->dev; 177 unsigned int pll_out; 178 int ret; 179 180 priv->sample_rate = params_rate(params); 181 priv->sample_format = params_format(params); 182 priv->streams |= BIT(substream->stream); 183 184 if (fsl_asoc_card_is_ac97(priv)) 185 return 0; 186 187 /* Specific configurations of DAIs starts from here */ 188 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), cpu_priv->sysclk_id[tx], 189 cpu_priv->sysclk_freq[tx], 190 cpu_priv->sysclk_dir[tx]); 191 if (ret && ret != -ENOTSUPP) { 192 dev_err(dev, "failed to set sysclk for cpu dai\n"); 193 goto fail; 194 } 195 196 if (cpu_priv->slot_width) { 197 if (!cpu_priv->slot_num) 198 cpu_priv->slot_num = 2; 199 200 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 201 cpu_priv->slot_num, 202 cpu_priv->slot_width); 203 if (ret && ret != -ENOTSUPP) { 204 dev_err(dev, "failed to set TDM slot for cpu dai\n"); 205 goto fail; 206 } 207 } 208 209 /* Specific configuration for PLL */ 210 if (codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) { 211 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE) 212 pll_out = priv->sample_rate * 384; 213 else 214 pll_out = priv->sample_rate * 256; 215 216 ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0), 217 codec_priv->pll_id, 218 codec_priv->mclk_id, 219 codec_priv->mclk_freq, pll_out); 220 if (ret) { 221 dev_err(dev, "failed to start FLL: %d\n", ret); 222 goto fail; 223 } 224 225 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 226 codec_priv->fll_id, 227 pll_out, SND_SOC_CLOCK_IN); 228 229 if (ret && ret != -ENOTSUPP) { 230 dev_err(dev, "failed to set SYSCLK: %d\n", ret); 231 goto fail; 232 } 233 } 234 235 return 0; 236 237 fail: 238 priv->streams &= ~BIT(substream->stream); 239 return ret; 240 } 241 242 static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream) 243 { 244 struct snd_soc_pcm_runtime *rtd = substream->private_data; 245 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); 246 struct codec_priv *codec_priv = &priv->codec_priv; 247 struct device *dev = rtd->card->dev; 248 int ret; 249 250 priv->streams &= ~BIT(substream->stream); 251 252 if (!priv->streams && codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) { 253 /* Force freq to be free_freq to avoid error message in codec */ 254 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 255 codec_priv->mclk_id, 256 codec_priv->free_freq, 257 SND_SOC_CLOCK_IN); 258 if (ret) { 259 dev_err(dev, "failed to switch away from FLL: %d\n", ret); 260 return ret; 261 } 262 263 ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0), 264 codec_priv->pll_id, 0, 0, 0); 265 if (ret && ret != -ENOTSUPP) { 266 dev_err(dev, "failed to stop FLL: %d\n", ret); 267 return ret; 268 } 269 } 270 271 return 0; 272 } 273 274 static const struct snd_soc_ops fsl_asoc_card_ops = { 275 .hw_params = fsl_asoc_card_hw_params, 276 .hw_free = fsl_asoc_card_hw_free, 277 }; 278 279 static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 280 struct snd_pcm_hw_params *params) 281 { 282 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); 283 struct snd_interval *rate; 284 struct snd_mask *mask; 285 286 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 287 rate->max = rate->min = priv->asrc_rate; 288 289 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 290 snd_mask_none(mask); 291 snd_mask_set_format(mask, priv->asrc_format); 292 293 return 0; 294 } 295 296 SND_SOC_DAILINK_DEFS(hifi, 297 DAILINK_COMP_ARRAY(COMP_EMPTY()), 298 DAILINK_COMP_ARRAY(COMP_EMPTY()), 299 DAILINK_COMP_ARRAY(COMP_EMPTY())); 300 301 SND_SOC_DAILINK_DEFS(hifi_fe, 302 DAILINK_COMP_ARRAY(COMP_EMPTY()), 303 DAILINK_COMP_ARRAY(COMP_DUMMY()), 304 DAILINK_COMP_ARRAY(COMP_EMPTY())); 305 306 SND_SOC_DAILINK_DEFS(hifi_be, 307 DAILINK_COMP_ARRAY(COMP_EMPTY()), 308 DAILINK_COMP_ARRAY(COMP_EMPTY()), 309 DAILINK_COMP_ARRAY(COMP_DUMMY())); 310 311 static const struct snd_soc_dai_link fsl_asoc_card_dai[] = { 312 /* Default ASoC DAI Link*/ 313 { 314 .name = "HiFi", 315 .stream_name = "HiFi", 316 .ops = &fsl_asoc_card_ops, 317 SND_SOC_DAILINK_REG(hifi), 318 }, 319 /* DPCM Link between Front-End and Back-End (Optional) */ 320 { 321 .name = "HiFi-ASRC-FE", 322 .stream_name = "HiFi-ASRC-FE", 323 .dpcm_playback = 1, 324 .dpcm_capture = 1, 325 .dynamic = 1, 326 SND_SOC_DAILINK_REG(hifi_fe), 327 }, 328 { 329 .name = "HiFi-ASRC-BE", 330 .stream_name = "HiFi-ASRC-BE", 331 .be_hw_params_fixup = be_hw_params_fixup, 332 .ops = &fsl_asoc_card_ops, 333 .dpcm_playback = 1, 334 .dpcm_capture = 1, 335 .no_pcm = 1, 336 SND_SOC_DAILINK_REG(hifi_be), 337 }, 338 }; 339 340 static int fsl_asoc_card_audmux_init(struct device_node *np, 341 struct fsl_asoc_card_priv *priv) 342 { 343 struct device *dev = &priv->pdev->dev; 344 u32 int_ptcr = 0, ext_ptcr = 0; 345 int int_port, ext_port; 346 int ret; 347 348 ret = of_property_read_u32(np, "mux-int-port", &int_port); 349 if (ret) { 350 dev_err(dev, "mux-int-port missing or invalid\n"); 351 return ret; 352 } 353 ret = of_property_read_u32(np, "mux-ext-port", &ext_port); 354 if (ret) { 355 dev_err(dev, "mux-ext-port missing or invalid\n"); 356 return ret; 357 } 358 359 /* 360 * The port numbering in the hardware manual starts at 1, while 361 * the AUDMUX API expects it starts at 0. 362 */ 363 int_port--; 364 ext_port--; 365 366 /* 367 * Use asynchronous mode (6 wires) for all cases except AC97. 368 * If only 4 wires are needed, just set SSI into 369 * synchronous mode and enable 4 PADs in IOMUX. 370 */ 371 switch (priv->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 372 case SND_SOC_DAIFMT_CBP_CFP: 373 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) | 374 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) | 375 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | 376 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | 377 IMX_AUDMUX_V2_PTCR_RFSDIR | 378 IMX_AUDMUX_V2_PTCR_RCLKDIR | 379 IMX_AUDMUX_V2_PTCR_TFSDIR | 380 IMX_AUDMUX_V2_PTCR_TCLKDIR; 381 break; 382 case SND_SOC_DAIFMT_CBP_CFC: 383 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) | 384 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | 385 IMX_AUDMUX_V2_PTCR_RCLKDIR | 386 IMX_AUDMUX_V2_PTCR_TCLKDIR; 387 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) | 388 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) | 389 IMX_AUDMUX_V2_PTCR_RFSDIR | 390 IMX_AUDMUX_V2_PTCR_TFSDIR; 391 break; 392 case SND_SOC_DAIFMT_CBC_CFP: 393 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) | 394 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | 395 IMX_AUDMUX_V2_PTCR_RFSDIR | 396 IMX_AUDMUX_V2_PTCR_TFSDIR; 397 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) | 398 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) | 399 IMX_AUDMUX_V2_PTCR_RCLKDIR | 400 IMX_AUDMUX_V2_PTCR_TCLKDIR; 401 break; 402 case SND_SOC_DAIFMT_CBC_CFC: 403 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) | 404 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) | 405 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) | 406 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) | 407 IMX_AUDMUX_V2_PTCR_RFSDIR | 408 IMX_AUDMUX_V2_PTCR_RCLKDIR | 409 IMX_AUDMUX_V2_PTCR_TFSDIR | 410 IMX_AUDMUX_V2_PTCR_TCLKDIR; 411 break; 412 default: 413 if (!fsl_asoc_card_is_ac97(priv)) 414 return -EINVAL; 415 } 416 417 if (fsl_asoc_card_is_ac97(priv)) { 418 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN | 419 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | 420 IMX_AUDMUX_V2_PTCR_TCLKDIR; 421 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN | 422 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) | 423 IMX_AUDMUX_V2_PTCR_TFSDIR; 424 } 425 426 /* Asynchronous mode can not be set along with RCLKDIR */ 427 if (!fsl_asoc_card_is_ac97(priv)) { 428 unsigned int pdcr = 429 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port); 430 431 ret = imx_audmux_v2_configure_port(int_port, 0, 432 pdcr); 433 if (ret) { 434 dev_err(dev, "audmux internal port setup failed\n"); 435 return ret; 436 } 437 } 438 439 ret = imx_audmux_v2_configure_port(int_port, int_ptcr, 440 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); 441 if (ret) { 442 dev_err(dev, "audmux internal port setup failed\n"); 443 return ret; 444 } 445 446 if (!fsl_asoc_card_is_ac97(priv)) { 447 unsigned int pdcr = 448 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port); 449 450 ret = imx_audmux_v2_configure_port(ext_port, 0, 451 pdcr); 452 if (ret) { 453 dev_err(dev, "audmux external port setup failed\n"); 454 return ret; 455 } 456 } 457 458 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr, 459 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); 460 if (ret) { 461 dev_err(dev, "audmux external port setup failed\n"); 462 return ret; 463 } 464 465 return 0; 466 } 467 468 static int hp_jack_event(struct notifier_block *nb, unsigned long event, 469 void *data) 470 { 471 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 472 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 473 474 if (event & SND_JACK_HEADPHONE) 475 /* Disable speaker if headphone is plugged in */ 476 return snd_soc_dapm_disable_pin(dapm, "Ext Spk"); 477 else 478 return snd_soc_dapm_enable_pin(dapm, "Ext Spk"); 479 } 480 481 static struct notifier_block hp_jack_nb = { 482 .notifier_call = hp_jack_event, 483 }; 484 485 static int mic_jack_event(struct notifier_block *nb, unsigned long event, 486 void *data) 487 { 488 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 489 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 490 491 if (event & SND_JACK_MICROPHONE) 492 /* Disable dmic if microphone is plugged in */ 493 return snd_soc_dapm_disable_pin(dapm, "DMIC"); 494 else 495 return snd_soc_dapm_enable_pin(dapm, "DMIC"); 496 } 497 498 static struct notifier_block mic_jack_nb = { 499 .notifier_call = mic_jack_event, 500 }; 501 502 static int fsl_asoc_card_late_probe(struct snd_soc_card *card) 503 { 504 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card); 505 struct snd_soc_pcm_runtime *rtd = list_first_entry( 506 &card->rtd_list, struct snd_soc_pcm_runtime, list); 507 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 508 struct codec_priv *codec_priv = &priv->codec_priv; 509 struct device *dev = card->dev; 510 int ret; 511 512 if (fsl_asoc_card_is_ac97(priv)) { 513 #if IS_ENABLED(CONFIG_SND_AC97_CODEC) 514 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 515 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); 516 517 /* 518 * Use slots 3/4 for S/PDIF so SSI won't try to enable 519 * other slots and send some samples there 520 * due to SLOTREQ bits for S/PDIF received from codec 521 */ 522 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, 523 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4); 524 #endif 525 526 return 0; 527 } 528 529 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id, 530 codec_priv->mclk_freq, SND_SOC_CLOCK_IN); 531 if (ret && ret != -ENOTSUPP) { 532 dev_err(dev, "failed to set sysclk in %s\n", __func__); 533 return ret; 534 } 535 536 if (!IS_ERR_OR_NULL(codec_priv->mclk)) 537 clk_prepare_enable(codec_priv->mclk); 538 539 return 0; 540 } 541 542 static int fsl_asoc_card_probe(struct platform_device *pdev) 543 { 544 struct device_node *cpu_np, *codec_np, *asrc_np; 545 struct device_node *np = pdev->dev.of_node; 546 struct platform_device *asrc_pdev = NULL; 547 struct device_node *bitclkprovider = NULL; 548 struct device_node *frameprovider = NULL; 549 struct platform_device *cpu_pdev; 550 struct fsl_asoc_card_priv *priv; 551 struct device *codec_dev = NULL; 552 const char *codec_dai_name; 553 const char *codec_dev_name; 554 u32 asrc_fmt = 0; 555 u32 width; 556 int ret; 557 558 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 559 if (!priv) 560 return -ENOMEM; 561 562 priv->pdev = pdev; 563 564 cpu_np = of_parse_phandle(np, "audio-cpu", 0); 565 /* Give a chance to old DT binding */ 566 if (!cpu_np) 567 cpu_np = of_parse_phandle(np, "ssi-controller", 0); 568 if (!cpu_np) { 569 dev_err(&pdev->dev, "CPU phandle missing or invalid\n"); 570 ret = -EINVAL; 571 goto fail; 572 } 573 574 cpu_pdev = of_find_device_by_node(cpu_np); 575 if (!cpu_pdev) { 576 dev_err(&pdev->dev, "failed to find CPU DAI device\n"); 577 ret = -EINVAL; 578 goto fail; 579 } 580 581 codec_np = of_parse_phandle(np, "audio-codec", 0); 582 if (codec_np) { 583 struct platform_device *codec_pdev; 584 struct i2c_client *codec_i2c; 585 586 codec_i2c = of_find_i2c_device_by_node(codec_np); 587 if (codec_i2c) { 588 codec_dev = &codec_i2c->dev; 589 codec_dev_name = codec_i2c->name; 590 } 591 if (!codec_dev) { 592 codec_pdev = of_find_device_by_node(codec_np); 593 if (codec_pdev) { 594 codec_dev = &codec_pdev->dev; 595 codec_dev_name = codec_pdev->name; 596 } 597 } 598 } 599 600 asrc_np = of_parse_phandle(np, "audio-asrc", 0); 601 if (asrc_np) 602 asrc_pdev = of_find_device_by_node(asrc_np); 603 604 /* Get the MCLK rate only, and leave it controlled by CODEC drivers */ 605 if (codec_dev) { 606 struct clk *codec_clk = clk_get(codec_dev, NULL); 607 608 if (!IS_ERR(codec_clk)) { 609 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk); 610 clk_put(codec_clk); 611 } 612 } 613 614 /* Default sample rate and format, will be updated in hw_params() */ 615 priv->sample_rate = 44100; 616 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE; 617 618 /* Assign a default DAI format, and allow each card to overwrite it */ 619 priv->dai_fmt = DAI_FMT_BASE; 620 621 memcpy(priv->dai_link, fsl_asoc_card_dai, 622 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link)); 623 624 priv->card.dapm_routes = audio_map; 625 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map); 626 priv->card.driver_name = DRIVER_NAME; 627 628 priv->codec_priv.fll_id = -1; 629 priv->codec_priv.pll_id = -1; 630 631 /* Diversify the card configurations */ 632 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) { 633 codec_dai_name = "cs42888"; 634 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq; 635 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq; 636 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT; 637 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT; 638 priv->cpu_priv.slot_width = 32; 639 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 640 } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) { 641 codec_dai_name = "cs4271-hifi"; 642 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK; 643 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 644 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) { 645 codec_dai_name = "sgtl5000"; 646 priv->codec_priv.mclk_id = SGTL5000_SYSCLK; 647 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 648 } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic32x4")) { 649 codec_dai_name = "tlv320aic32x4-hifi"; 650 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 651 } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic31xx")) { 652 codec_dai_name = "tlv320dac31xx-hifi"; 653 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 654 priv->dai_link[1].dpcm_capture = 0; 655 priv->dai_link[2].dpcm_capture = 0; 656 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT; 657 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT; 658 priv->card.dapm_routes = audio_map_tx; 659 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx); 660 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) { 661 codec_dai_name = "wm8962"; 662 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK; 663 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL; 664 priv->codec_priv.pll_id = WM8962_FLL; 665 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 666 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) { 667 codec_dai_name = "wm8960-hifi"; 668 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO; 669 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO; 670 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 671 } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) { 672 codec_dai_name = "ac97-hifi"; 673 priv->dai_fmt = SND_SOC_DAIFMT_AC97; 674 priv->card.dapm_routes = audio_map_ac97; 675 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_ac97); 676 } else if (of_device_is_compatible(np, "fsl,imx-audio-mqs")) { 677 codec_dai_name = "fsl-mqs-dai"; 678 priv->dai_fmt = SND_SOC_DAIFMT_LEFT_J | 679 SND_SOC_DAIFMT_CBC_CFC | 680 SND_SOC_DAIFMT_NB_NF; 681 priv->dai_link[1].dpcm_capture = 0; 682 priv->dai_link[2].dpcm_capture = 0; 683 priv->card.dapm_routes = audio_map_tx; 684 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx); 685 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8524")) { 686 codec_dai_name = "wm8524-hifi"; 687 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 688 priv->dai_link[1].dpcm_capture = 0; 689 priv->dai_link[2].dpcm_capture = 0; 690 priv->cpu_priv.slot_width = 32; 691 priv->card.dapm_routes = audio_map_tx; 692 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx); 693 } else if (of_device_is_compatible(np, "fsl,imx-audio-si476x")) { 694 codec_dai_name = "si476x-codec"; 695 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 696 priv->card.dapm_routes = audio_map_rx; 697 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx); 698 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8958")) { 699 codec_dai_name = "wm8994-aif1"; 700 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 701 priv->codec_priv.mclk_id = WM8994_FLL_SRC_MCLK1; 702 priv->codec_priv.fll_id = WM8994_SYSCLK_FLL1; 703 priv->codec_priv.pll_id = WM8994_FLL1; 704 priv->codec_priv.free_freq = priv->codec_priv.mclk_freq; 705 priv->card.dapm_routes = NULL; 706 priv->card.num_dapm_routes = 0; 707 } else if (of_device_is_compatible(np, "fsl,imx-audio-nau8822")) { 708 codec_dai_name = "nau8822-hifi"; 709 priv->codec_priv.mclk_id = NAU8822_CLK_MCLK; 710 priv->codec_priv.fll_id = NAU8822_CLK_PLL; 711 priv->codec_priv.pll_id = NAU8822_CLK_PLL; 712 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 713 if (codec_dev) 714 priv->codec_priv.mclk = devm_clk_get(codec_dev, NULL); 715 } else { 716 dev_err(&pdev->dev, "unknown Device Tree compatible\n"); 717 ret = -EINVAL; 718 goto asrc_fail; 719 } 720 721 /* 722 * Allow setting mclk-id from the device-tree node. Otherwise, the 723 * default value for each card configuration is used. 724 */ 725 of_property_read_u32(np, "mclk-id", &priv->codec_priv.mclk_id); 726 727 /* Format info from DT is optional. */ 728 snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL, &bitclkprovider, &frameprovider); 729 if (bitclkprovider || frameprovider) { 730 unsigned int daifmt = snd_soc_daifmt_parse_format(np, NULL); 731 732 if (codec_np == bitclkprovider) 733 daifmt |= (codec_np == frameprovider) ? 734 SND_SOC_DAIFMT_CBP_CFP : SND_SOC_DAIFMT_CBP_CFC; 735 else 736 daifmt |= (codec_np == frameprovider) ? 737 SND_SOC_DAIFMT_CBC_CFP : SND_SOC_DAIFMT_CBC_CFC; 738 739 /* Override dai_fmt with value from DT */ 740 priv->dai_fmt = daifmt; 741 } 742 743 /* Change direction according to format */ 744 if (priv->dai_fmt & SND_SOC_DAIFMT_CBP_CFP) { 745 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_IN; 746 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_IN; 747 } 748 749 of_node_put(bitclkprovider); 750 of_node_put(frameprovider); 751 752 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) { 753 dev_dbg(&pdev->dev, "failed to find codec device\n"); 754 ret = -EPROBE_DEFER; 755 goto asrc_fail; 756 } 757 758 /* Common settings for corresponding Freescale CPU DAI driver */ 759 if (of_node_name_eq(cpu_np, "ssi")) { 760 /* Only SSI needs to configure AUDMUX */ 761 ret = fsl_asoc_card_audmux_init(np, priv); 762 if (ret) { 763 dev_err(&pdev->dev, "failed to init audmux\n"); 764 goto asrc_fail; 765 } 766 } else if (of_node_name_eq(cpu_np, "esai")) { 767 struct clk *esai_clk = clk_get(&cpu_pdev->dev, "extal"); 768 769 if (!IS_ERR(esai_clk)) { 770 priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(esai_clk); 771 priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(esai_clk); 772 clk_put(esai_clk); 773 } else if (PTR_ERR(esai_clk) == -EPROBE_DEFER) { 774 ret = -EPROBE_DEFER; 775 goto asrc_fail; 776 } 777 778 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL; 779 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL; 780 } else if (of_node_name_eq(cpu_np, "sai")) { 781 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1; 782 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1; 783 } 784 785 /* Initialize sound card */ 786 priv->card.dev = &pdev->dev; 787 priv->card.owner = THIS_MODULE; 788 ret = snd_soc_of_parse_card_name(&priv->card, "model"); 789 if (ret) { 790 snprintf(priv->name, sizeof(priv->name), "%s-audio", 791 fsl_asoc_card_is_ac97(priv) ? "ac97" : codec_dev_name); 792 priv->card.name = priv->name; 793 } 794 priv->card.dai_link = priv->dai_link; 795 priv->card.late_probe = fsl_asoc_card_late_probe; 796 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets; 797 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets); 798 799 /* Drop the second half of DAPM routes -- ASRC */ 800 if (!asrc_pdev) 801 priv->card.num_dapm_routes /= 2; 802 803 if (of_property_read_bool(np, "audio-routing")) { 804 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing"); 805 if (ret) { 806 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); 807 goto asrc_fail; 808 } 809 } 810 811 /* Normal DAI Link */ 812 priv->dai_link[0].cpus->of_node = cpu_np; 813 priv->dai_link[0].codecs->dai_name = codec_dai_name; 814 815 if (!fsl_asoc_card_is_ac97(priv)) 816 priv->dai_link[0].codecs->of_node = codec_np; 817 else { 818 u32 idx; 819 820 ret = of_property_read_u32(cpu_np, "cell-index", &idx); 821 if (ret) { 822 dev_err(&pdev->dev, 823 "cannot get CPU index property\n"); 824 goto asrc_fail; 825 } 826 827 priv->dai_link[0].codecs->name = 828 devm_kasprintf(&pdev->dev, GFP_KERNEL, 829 "ac97-codec.%u", 830 (unsigned int)idx); 831 if (!priv->dai_link[0].codecs->name) { 832 ret = -ENOMEM; 833 goto asrc_fail; 834 } 835 } 836 837 priv->dai_link[0].platforms->of_node = cpu_np; 838 priv->dai_link[0].dai_fmt = priv->dai_fmt; 839 priv->card.num_links = 1; 840 841 if (asrc_pdev) { 842 /* DPCM DAI Links only if ASRC exists */ 843 priv->dai_link[1].cpus->of_node = asrc_np; 844 priv->dai_link[1].platforms->of_node = asrc_np; 845 priv->dai_link[2].codecs->dai_name = codec_dai_name; 846 priv->dai_link[2].codecs->of_node = codec_np; 847 priv->dai_link[2].codecs->name = 848 priv->dai_link[0].codecs->name; 849 priv->dai_link[2].cpus->of_node = cpu_np; 850 priv->dai_link[2].dai_fmt = priv->dai_fmt; 851 priv->card.num_links = 3; 852 853 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate", 854 &priv->asrc_rate); 855 if (ret) { 856 dev_err(&pdev->dev, "failed to get output rate\n"); 857 ret = -EINVAL; 858 goto asrc_fail; 859 } 860 861 ret = of_property_read_u32(asrc_np, "fsl,asrc-format", &asrc_fmt); 862 priv->asrc_format = (__force snd_pcm_format_t)asrc_fmt; 863 if (ret) { 864 /* Fallback to old binding; translate to asrc_format */ 865 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", 866 &width); 867 if (ret) { 868 dev_err(&pdev->dev, 869 "failed to decide output format\n"); 870 goto asrc_fail; 871 } 872 873 if (width == 24) 874 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE; 875 else 876 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE; 877 } 878 } 879 880 /* Finish card registering */ 881 platform_set_drvdata(pdev, priv); 882 snd_soc_card_set_drvdata(&priv->card, priv); 883 884 ret = devm_snd_soc_register_card(&pdev->dev, &priv->card); 885 if (ret) { 886 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); 887 goto asrc_fail; 888 } 889 890 /* 891 * Properties "hp-det-gpio" and "mic-det-gpio" are optional, and 892 * asoc_simple_init_jack uses these properties for creating 893 * Headphone Jack and Microphone Jack. 894 * 895 * The notifier is initialized in snd_soc_card_jack_new(), then 896 * snd_soc_jack_notifier_register can be called. 897 */ 898 if (of_property_read_bool(np, "hp-det-gpio")) { 899 ret = asoc_simple_init_jack(&priv->card, &priv->hp_jack, 900 1, NULL, "Headphone Jack"); 901 if (ret) 902 goto asrc_fail; 903 904 snd_soc_jack_notifier_register(&priv->hp_jack.jack, &hp_jack_nb); 905 } 906 907 if (of_property_read_bool(np, "mic-det-gpio")) { 908 ret = asoc_simple_init_jack(&priv->card, &priv->mic_jack, 909 0, NULL, "Mic Jack"); 910 if (ret) 911 goto asrc_fail; 912 913 snd_soc_jack_notifier_register(&priv->mic_jack.jack, &mic_jack_nb); 914 } 915 916 asrc_fail: 917 of_node_put(asrc_np); 918 of_node_put(codec_np); 919 put_device(&cpu_pdev->dev); 920 fail: 921 of_node_put(cpu_np); 922 923 return ret; 924 } 925 926 static const struct of_device_id fsl_asoc_card_dt_ids[] = { 927 { .compatible = "fsl,imx-audio-ac97", }, 928 { .compatible = "fsl,imx-audio-cs42888", }, 929 { .compatible = "fsl,imx-audio-cs427x", }, 930 { .compatible = "fsl,imx-audio-tlv320aic32x4", }, 931 { .compatible = "fsl,imx-audio-tlv320aic31xx", }, 932 { .compatible = "fsl,imx-audio-sgtl5000", }, 933 { .compatible = "fsl,imx-audio-wm8962", }, 934 { .compatible = "fsl,imx-audio-wm8960", }, 935 { .compatible = "fsl,imx-audio-mqs", }, 936 { .compatible = "fsl,imx-audio-wm8524", }, 937 { .compatible = "fsl,imx-audio-si476x", }, 938 { .compatible = "fsl,imx-audio-wm8958", }, 939 { .compatible = "fsl,imx-audio-nau8822", }, 940 {} 941 }; 942 MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids); 943 944 static struct platform_driver fsl_asoc_card_driver = { 945 .probe = fsl_asoc_card_probe, 946 .driver = { 947 .name = DRIVER_NAME, 948 .pm = &snd_soc_pm_ops, 949 .of_match_table = fsl_asoc_card_dt_ids, 950 }, 951 }; 952 module_platform_driver(fsl_asoc_card_driver); 953 954 MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC"); 955 MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>"); 956 MODULE_ALIAS("platform:" DRIVER_NAME); 957 MODULE_LICENSE("GPL"); 958