Nicolin Chen | 708b435 | 2014-07-30 19:27:38 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Freescale Generic ASoC Sound Card driver with ASRC |
| 3 | * |
| 4 | * Copyright (C) 2014 Freescale Semiconductor, Inc. |
| 5 | * |
| 6 | * Author: Nicolin Chen <nicoleotsuka@gmail.com> |
| 7 | * |
| 8 | * This file is licensed under the terms of the GNU General Public License |
| 9 | * version 2. This program is licensed "as is" without any warranty of any |
| 10 | * kind, whether express or implied. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/clk.h> |
| 14 | #include <linux/i2c.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/of_platform.h> |
| 17 | #include <sound/pcm_params.h> |
| 18 | #include <sound/soc.h> |
| 19 | |
| 20 | #include "fsl_esai.h" |
| 21 | #include "fsl_sai.h" |
| 22 | #include "imx-audmux.h" |
| 23 | |
| 24 | #include "../codecs/sgtl5000.h" |
| 25 | #include "../codecs/wm8962.h" |
| 26 | |
| 27 | #define RX 0 |
| 28 | #define TX 1 |
| 29 | |
| 30 | /* Default DAI format without Master and Slave flag */ |
| 31 | #define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF) |
| 32 | |
| 33 | /** |
| 34 | * CODEC private data |
| 35 | * |
| 36 | * @mclk_freq: Clock rate of MCLK |
| 37 | * @mclk_id: MCLK (or main clock) id for set_sysclk() |
| 38 | * @fll_id: FLL (or secordary clock) id for set_sysclk() |
| 39 | * @pll_id: PLL id for set_pll() |
| 40 | */ |
| 41 | struct codec_priv { |
| 42 | unsigned long mclk_freq; |
| 43 | u32 mclk_id; |
| 44 | u32 fll_id; |
| 45 | u32 pll_id; |
| 46 | }; |
| 47 | |
| 48 | /** |
| 49 | * CPU private data |
| 50 | * |
| 51 | * @sysclk_freq[2]: SYSCLK rates for set_sysclk() |
| 52 | * @sysclk_dir[2]: SYSCLK directions for set_sysclk() |
| 53 | * @sysclk_id[2]: SYSCLK ids for set_sysclk() |
| 54 | * |
| 55 | * Note: [1] for tx and [0] for rx |
| 56 | */ |
| 57 | struct cpu_priv { |
| 58 | unsigned long sysclk_freq[2]; |
| 59 | u32 sysclk_dir[2]; |
| 60 | u32 sysclk_id[2]; |
| 61 | }; |
| 62 | |
| 63 | /** |
| 64 | * Freescale Generic ASOC card private data |
| 65 | * |
| 66 | * @dai_link[3]: DAI link structure including normal one and DPCM link |
| 67 | * @pdev: platform device pointer |
| 68 | * @codec_priv: CODEC private data |
| 69 | * @cpu_priv: CPU private data |
| 70 | * @card: ASoC card structure |
| 71 | * @sample_rate: Current sample rate |
| 72 | * @sample_format: Current sample format |
| 73 | * @asrc_rate: ASRC sample rate used by Back-Ends |
| 74 | * @asrc_format: ASRC sample format used by Back-Ends |
| 75 | * @dai_fmt: DAI format between CPU and CODEC |
| 76 | * @name: Card name |
| 77 | */ |
| 78 | |
| 79 | struct fsl_asoc_card_priv { |
| 80 | struct snd_soc_dai_link dai_link[3]; |
| 81 | struct platform_device *pdev; |
| 82 | struct codec_priv codec_priv; |
| 83 | struct cpu_priv cpu_priv; |
| 84 | struct snd_soc_card card; |
| 85 | u32 sample_rate; |
| 86 | u32 sample_format; |
| 87 | u32 asrc_rate; |
| 88 | u32 asrc_format; |
| 89 | u32 dai_fmt; |
| 90 | char name[32]; |
| 91 | }; |
| 92 | |
| 93 | /** |
| 94 | * This dapm route map exsits for DPCM link only. |
| 95 | * The other routes shall go through Device Tree. |
| 96 | */ |
| 97 | static const struct snd_soc_dapm_route audio_map[] = { |
| 98 | {"CPU-Playback", NULL, "ASRC-Playback"}, |
| 99 | {"Playback", NULL, "CPU-Playback"}, |
| 100 | {"ASRC-Capture", NULL, "CPU-Capture"}, |
| 101 | {"CPU-Capture", NULL, "Capture"}, |
| 102 | }; |
| 103 | |
| 104 | /* Add all possible widgets into here without being redundant */ |
| 105 | static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = { |
| 106 | SND_SOC_DAPM_LINE("Line Out Jack", NULL), |
| 107 | SND_SOC_DAPM_LINE("Line In Jack", NULL), |
| 108 | SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| 109 | SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| 110 | SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| 111 | SND_SOC_DAPM_MIC("AMIC", NULL), |
| 112 | SND_SOC_DAPM_MIC("DMIC", NULL), |
| 113 | }; |
| 114 | |
| 115 | static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream, |
| 116 | struct snd_pcm_hw_params *params) |
| 117 | { |
| 118 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 119 | struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); |
| 120 | bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
| 121 | struct cpu_priv *cpu_priv = &priv->cpu_priv; |
| 122 | struct device *dev = rtd->card->dev; |
| 123 | int ret; |
| 124 | |
| 125 | priv->sample_rate = params_rate(params); |
| 126 | priv->sample_format = params_format(params); |
| 127 | |
| 128 | if (priv->card.set_bias_level) |
| 129 | return 0; |
| 130 | |
| 131 | /* Specific configurations of DAIs starts from here */ |
| 132 | ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx], |
| 133 | cpu_priv->sysclk_freq[tx], |
| 134 | cpu_priv->sysclk_dir[tx]); |
| 135 | if (ret) { |
| 136 | dev_err(dev, "failed to set sysclk for cpu dai\n"); |
| 137 | return ret; |
| 138 | } |
| 139 | |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | static struct snd_soc_ops fsl_asoc_card_ops = { |
| 144 | .hw_params = fsl_asoc_card_hw_params, |
| 145 | }; |
| 146 | |
| 147 | static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, |
| 148 | struct snd_pcm_hw_params *params) |
| 149 | { |
| 150 | struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); |
| 151 | struct snd_interval *rate; |
| 152 | struct snd_mask *mask; |
| 153 | |
| 154 | rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
| 155 | rate->max = rate->min = priv->asrc_rate; |
| 156 | |
| 157 | mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
| 158 | snd_mask_none(mask); |
| 159 | snd_mask_set(mask, priv->asrc_format); |
| 160 | |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | static struct snd_soc_dai_link fsl_asoc_card_dai[] = { |
| 165 | /* Default ASoC DAI Link*/ |
| 166 | { |
| 167 | .name = "HiFi", |
| 168 | .stream_name = "HiFi", |
| 169 | .ops = &fsl_asoc_card_ops, |
| 170 | }, |
| 171 | /* DPCM Link between Front-End and Back-End (Optional) */ |
| 172 | { |
| 173 | .name = "HiFi-ASRC-FE", |
| 174 | .stream_name = "HiFi-ASRC-FE", |
| 175 | .codec_name = "snd-soc-dummy", |
| 176 | .codec_dai_name = "snd-soc-dummy-dai", |
| 177 | .dpcm_playback = 1, |
| 178 | .dpcm_capture = 1, |
| 179 | .dynamic = 1, |
| 180 | }, |
| 181 | { |
| 182 | .name = "HiFi-ASRC-BE", |
| 183 | .stream_name = "HiFi-ASRC-BE", |
| 184 | .platform_name = "snd-soc-dummy", |
| 185 | .be_hw_params_fixup = be_hw_params_fixup, |
| 186 | .ops = &fsl_asoc_card_ops, |
| 187 | .dpcm_playback = 1, |
| 188 | .dpcm_capture = 1, |
| 189 | .no_pcm = 1, |
| 190 | }, |
| 191 | }; |
| 192 | |
| 193 | static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card, |
| 194 | struct snd_soc_dapm_context *dapm, |
| 195 | enum snd_soc_bias_level level) |
| 196 | { |
| 197 | struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card); |
| 198 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; |
| 199 | struct codec_priv *codec_priv = &priv->codec_priv; |
| 200 | struct device *dev = card->dev; |
| 201 | unsigned int pll_out; |
| 202 | int ret; |
| 203 | |
| 204 | if (dapm->dev != codec_dai->dev) |
| 205 | return 0; |
| 206 | |
| 207 | switch (level) { |
| 208 | case SND_SOC_BIAS_PREPARE: |
| 209 | if (dapm->bias_level != SND_SOC_BIAS_STANDBY) |
| 210 | break; |
| 211 | |
| 212 | if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE) |
| 213 | pll_out = priv->sample_rate * 384; |
| 214 | else |
| 215 | pll_out = priv->sample_rate * 256; |
| 216 | |
| 217 | ret = snd_soc_dai_set_pll(codec_dai, 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 | return ret; |
| 223 | } |
| 224 | |
| 225 | ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id, |
| 226 | pll_out, SND_SOC_CLOCK_IN); |
| 227 | if (ret) { |
| 228 | dev_err(dev, "failed to set SYSCLK: %d\n", ret); |
| 229 | return ret; |
| 230 | } |
| 231 | break; |
| 232 | |
| 233 | case SND_SOC_BIAS_STANDBY: |
| 234 | if (dapm->bias_level != SND_SOC_BIAS_PREPARE) |
| 235 | break; |
| 236 | |
| 237 | ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id, |
| 238 | codec_priv->mclk_freq, |
| 239 | SND_SOC_CLOCK_IN); |
| 240 | if (ret) { |
| 241 | dev_err(dev, "failed to switch away from FLL: %d\n", ret); |
| 242 | return ret; |
| 243 | } |
| 244 | |
| 245 | ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0); |
| 246 | if (ret) { |
| 247 | dev_err(dev, "failed to stop FLL: %d\n", ret); |
| 248 | return ret; |
| 249 | } |
| 250 | break; |
| 251 | |
| 252 | default: |
| 253 | break; |
| 254 | } |
| 255 | |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | static int fsl_asoc_card_audmux_init(struct device_node *np, |
| 260 | struct fsl_asoc_card_priv *priv) |
| 261 | { |
| 262 | struct device *dev = &priv->pdev->dev; |
| 263 | u32 int_ptcr = 0, ext_ptcr = 0; |
| 264 | int int_port, ext_port; |
| 265 | int ret; |
| 266 | |
| 267 | ret = of_property_read_u32(np, "mux-int-port", &int_port); |
| 268 | if (ret) { |
| 269 | dev_err(dev, "mux-int-port missing or invalid\n"); |
| 270 | return ret; |
| 271 | } |
| 272 | ret = of_property_read_u32(np, "mux-ext-port", &ext_port); |
| 273 | if (ret) { |
| 274 | dev_err(dev, "mux-ext-port missing or invalid\n"); |
| 275 | return ret; |
| 276 | } |
| 277 | |
| 278 | /* |
| 279 | * The port numbering in the hardware manual starts at 1, while |
| 280 | * the AUDMUX API expects it starts at 0. |
| 281 | */ |
| 282 | int_port--; |
| 283 | ext_port--; |
| 284 | |
| 285 | /* |
| 286 | * Use asynchronous mode (6 wires) for all cases. |
| 287 | * If only 4 wires are needed, just set SSI into |
| 288 | * synchronous mode and enable 4 PADs in IOMUX. |
| 289 | */ |
| 290 | switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 291 | case SND_SOC_DAIFMT_CBM_CFM: |
| 292 | int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) | |
| 293 | IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) | |
| 294 | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | |
| 295 | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | |
| 296 | IMX_AUDMUX_V2_PTCR_RFSDIR | |
| 297 | IMX_AUDMUX_V2_PTCR_RCLKDIR | |
| 298 | IMX_AUDMUX_V2_PTCR_TFSDIR | |
| 299 | IMX_AUDMUX_V2_PTCR_TCLKDIR; |
| 300 | break; |
| 301 | case SND_SOC_DAIFMT_CBM_CFS: |
| 302 | int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) | |
| 303 | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | |
| 304 | IMX_AUDMUX_V2_PTCR_RCLKDIR | |
| 305 | IMX_AUDMUX_V2_PTCR_TCLKDIR; |
| 306 | ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) | |
| 307 | IMX_AUDMUX_V2_PTCR_TFSEL(int_port) | |
| 308 | IMX_AUDMUX_V2_PTCR_RFSDIR | |
| 309 | IMX_AUDMUX_V2_PTCR_TFSDIR; |
| 310 | break; |
| 311 | case SND_SOC_DAIFMT_CBS_CFM: |
| 312 | int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) | |
| 313 | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | |
| 314 | IMX_AUDMUX_V2_PTCR_RFSDIR | |
| 315 | IMX_AUDMUX_V2_PTCR_TFSDIR; |
| 316 | ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) | |
| 317 | IMX_AUDMUX_V2_PTCR_TCSEL(int_port) | |
| 318 | IMX_AUDMUX_V2_PTCR_RCLKDIR | |
| 319 | IMX_AUDMUX_V2_PTCR_TCLKDIR; |
| 320 | break; |
| 321 | case SND_SOC_DAIFMT_CBS_CFS: |
| 322 | ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) | |
| 323 | IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) | |
| 324 | IMX_AUDMUX_V2_PTCR_TFSEL(int_port) | |
| 325 | IMX_AUDMUX_V2_PTCR_TCSEL(int_port) | |
| 326 | IMX_AUDMUX_V2_PTCR_RFSDIR | |
| 327 | IMX_AUDMUX_V2_PTCR_RCLKDIR | |
| 328 | IMX_AUDMUX_V2_PTCR_TFSDIR | |
| 329 | IMX_AUDMUX_V2_PTCR_TCLKDIR; |
| 330 | break; |
| 331 | default: |
| 332 | return -EINVAL; |
| 333 | } |
| 334 | |
| 335 | /* Asynchronous mode can not be set along with RCLKDIR */ |
| 336 | ret = imx_audmux_v2_configure_port(int_port, 0, |
| 337 | IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); |
| 338 | if (ret) { |
| 339 | dev_err(dev, "audmux internal port setup failed\n"); |
| 340 | return ret; |
| 341 | } |
| 342 | |
| 343 | ret = imx_audmux_v2_configure_port(int_port, int_ptcr, |
| 344 | IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); |
| 345 | if (ret) { |
| 346 | dev_err(dev, "audmux internal port setup failed\n"); |
| 347 | return ret; |
| 348 | } |
| 349 | |
| 350 | ret = imx_audmux_v2_configure_port(ext_port, 0, |
| 351 | IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); |
| 352 | if (ret) { |
| 353 | dev_err(dev, "audmux external port setup failed\n"); |
| 354 | return ret; |
| 355 | } |
| 356 | |
| 357 | ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr, |
| 358 | IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); |
| 359 | if (ret) { |
| 360 | dev_err(dev, "audmux external port setup failed\n"); |
| 361 | return ret; |
| 362 | } |
| 363 | |
| 364 | return 0; |
| 365 | } |
| 366 | |
| 367 | static int fsl_asoc_card_late_probe(struct snd_soc_card *card) |
| 368 | { |
| 369 | struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card); |
| 370 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; |
| 371 | struct codec_priv *codec_priv = &priv->codec_priv; |
| 372 | struct device *dev = card->dev; |
| 373 | int ret; |
| 374 | |
| 375 | ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id, |
| 376 | codec_priv->mclk_freq, SND_SOC_CLOCK_IN); |
| 377 | if (ret) { |
| 378 | dev_err(dev, "failed to set sysclk in %s\n", __func__); |
| 379 | return ret; |
| 380 | } |
| 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | static int fsl_asoc_card_probe(struct platform_device *pdev) |
| 386 | { |
| 387 | struct device_node *cpu_np, *codec_np, *asrc_np; |
| 388 | struct device_node *np = pdev->dev.of_node; |
| 389 | struct platform_device *asrc_pdev = NULL; |
| 390 | struct platform_device *cpu_pdev; |
| 391 | struct fsl_asoc_card_priv *priv; |
| 392 | struct i2c_client *codec_dev; |
| 393 | struct clk *codec_clk; |
| 394 | u32 width; |
| 395 | int ret; |
| 396 | |
| 397 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
| 398 | if (!priv) |
| 399 | return -ENOMEM; |
| 400 | |
| 401 | cpu_np = of_parse_phandle(np, "audio-cpu", 0); |
| 402 | /* Give a chance to old DT binding */ |
| 403 | if (!cpu_np) |
| 404 | cpu_np = of_parse_phandle(np, "ssi-controller", 0); |
| 405 | codec_np = of_parse_phandle(np, "audio-codec", 0); |
| 406 | if (!cpu_np || !codec_np) { |
| 407 | dev_err(&pdev->dev, "phandle missing or invalid\n"); |
| 408 | ret = -EINVAL; |
| 409 | goto fail; |
| 410 | } |
| 411 | |
| 412 | cpu_pdev = of_find_device_by_node(cpu_np); |
| 413 | if (!cpu_pdev) { |
| 414 | dev_err(&pdev->dev, "failed to find CPU DAI device\n"); |
| 415 | ret = -EINVAL; |
| 416 | goto fail; |
| 417 | } |
| 418 | |
| 419 | codec_dev = of_find_i2c_device_by_node(codec_np); |
| 420 | if (!codec_dev) { |
| 421 | dev_err(&pdev->dev, "failed to find codec platform device\n"); |
| 422 | ret = -EINVAL; |
| 423 | goto fail; |
| 424 | } |
| 425 | |
| 426 | asrc_np = of_parse_phandle(np, "audio-asrc", 0); |
| 427 | if (asrc_np) |
| 428 | asrc_pdev = of_find_device_by_node(asrc_np); |
| 429 | |
| 430 | /* Get the MCLK rate only, and leave it controlled by CODEC drivers */ |
| 431 | codec_clk = clk_get(&codec_dev->dev, NULL); |
| 432 | if (!IS_ERR(codec_clk)) { |
| 433 | priv->codec_priv.mclk_freq = clk_get_rate(codec_clk); |
| 434 | clk_put(codec_clk); |
| 435 | } |
| 436 | |
| 437 | /* Default sample rate and format, will be updated in hw_params() */ |
| 438 | priv->sample_rate = 44100; |
| 439 | priv->sample_format = SNDRV_PCM_FORMAT_S16_LE; |
| 440 | |
| 441 | /* Assign a default DAI format, and allow each card to overwrite it */ |
| 442 | priv->dai_fmt = DAI_FMT_BASE; |
| 443 | |
| 444 | /* Diversify the card configurations */ |
| 445 | if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) { |
| 446 | priv->card.set_bias_level = NULL; |
| 447 | priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq; |
| 448 | priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq; |
| 449 | priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT; |
| 450 | priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT; |
| 451 | priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; |
| 452 | } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) { |
| 453 | priv->codec_priv.mclk_id = SGTL5000_SYSCLK; |
| 454 | priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; |
| 455 | } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) { |
| 456 | priv->card.set_bias_level = fsl_asoc_card_set_bias_level; |
| 457 | priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK; |
| 458 | priv->codec_priv.fll_id = WM8962_SYSCLK_FLL; |
| 459 | priv->codec_priv.pll_id = WM8962_FLL; |
| 460 | priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; |
| 461 | } else { |
| 462 | dev_err(&pdev->dev, "unknown Device Tree compatible\n"); |
| 463 | return -EINVAL; |
| 464 | } |
| 465 | |
| 466 | /* Common settings for corresponding Freescale CPU DAI driver */ |
| 467 | if (strstr(cpu_np->name, "ssi")) { |
| 468 | /* Only SSI needs to configure AUDMUX */ |
| 469 | ret = fsl_asoc_card_audmux_init(np, priv); |
| 470 | if (ret) { |
| 471 | dev_err(&pdev->dev, "failed to init audmux\n"); |
| 472 | goto fail; |
| 473 | } |
| 474 | } else if (strstr(cpu_np->name, "esai")) { |
| 475 | priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL; |
| 476 | priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL; |
| 477 | } else if (strstr(cpu_np->name, "sai")) { |
| 478 | priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1; |
| 479 | priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1; |
| 480 | } |
| 481 | |
| 482 | sprintf(priv->name, "%s-audio", codec_dev->name); |
| 483 | |
| 484 | /* Initialize sound card */ |
| 485 | priv->pdev = pdev; |
| 486 | priv->card.dev = &pdev->dev; |
| 487 | priv->card.name = priv->name; |
| 488 | priv->card.dai_link = priv->dai_link; |
| 489 | priv->card.dapm_routes = audio_map; |
| 490 | priv->card.late_probe = fsl_asoc_card_late_probe; |
| 491 | priv->card.num_dapm_routes = ARRAY_SIZE(audio_map); |
| 492 | priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets; |
| 493 | priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets); |
| 494 | |
| 495 | memcpy(priv->dai_link, fsl_asoc_card_dai, |
| 496 | sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link)); |
| 497 | |
| 498 | /* Normal DAI Link */ |
| 499 | priv->dai_link[0].cpu_of_node = cpu_np; |
| 500 | priv->dai_link[0].codec_of_node = codec_np; |
| 501 | priv->dai_link[0].codec_dai_name = codec_dev->name; |
| 502 | priv->dai_link[0].platform_of_node = cpu_np; |
| 503 | priv->dai_link[0].dai_fmt = priv->dai_fmt; |
| 504 | priv->card.num_links = 1; |
| 505 | |
| 506 | if (asrc_pdev) { |
| 507 | /* DPCM DAI Links only if ASRC exsits */ |
| 508 | priv->dai_link[1].cpu_of_node = asrc_np; |
| 509 | priv->dai_link[1].platform_of_node = asrc_np; |
| 510 | priv->dai_link[2].codec_dai_name = codec_dev->name; |
| 511 | priv->dai_link[2].codec_of_node = codec_np; |
| 512 | priv->dai_link[2].cpu_of_node = cpu_np; |
| 513 | priv->dai_link[2].dai_fmt = priv->dai_fmt; |
| 514 | priv->card.num_links = 3; |
| 515 | |
| 516 | ret = of_property_read_u32(asrc_np, "fsl,asrc-rate", |
| 517 | &priv->asrc_rate); |
| 518 | if (ret) { |
| 519 | dev_err(&pdev->dev, "failed to get output rate\n"); |
| 520 | ret = -EINVAL; |
| 521 | goto fail; |
| 522 | } |
| 523 | |
| 524 | ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width); |
| 525 | if (ret) { |
| 526 | dev_err(&pdev->dev, "failed to get output rate\n"); |
| 527 | ret = -EINVAL; |
| 528 | goto fail; |
| 529 | } |
| 530 | |
| 531 | if (width == 24) |
| 532 | priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE; |
| 533 | else |
| 534 | priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE; |
| 535 | } |
| 536 | |
| 537 | /* Finish card registering */ |
| 538 | platform_set_drvdata(pdev, priv); |
| 539 | snd_soc_card_set_drvdata(&priv->card, priv); |
| 540 | |
| 541 | ret = devm_snd_soc_register_card(&pdev->dev, &priv->card); |
| 542 | if (ret) |
| 543 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); |
| 544 | |
| 545 | fail: |
| 546 | of_node_put(codec_np); |
| 547 | of_node_put(asrc_np); |
| 548 | of_node_put(cpu_np); |
| 549 | |
| 550 | return ret; |
| 551 | } |
| 552 | |
| 553 | static const struct of_device_id fsl_asoc_card_dt_ids[] = { |
| 554 | { .compatible = "fsl,imx-audio-cs42888", }, |
| 555 | { .compatible = "fsl,imx-audio-sgtl5000", }, |
| 556 | { .compatible = "fsl,imx-audio-wm8962", }, |
| 557 | {} |
| 558 | }; |
| 559 | |
| 560 | static struct platform_driver fsl_asoc_card_driver = { |
| 561 | .probe = fsl_asoc_card_probe, |
| 562 | .driver = { |
| 563 | .name = "fsl-asoc-card", |
| 564 | .pm = &snd_soc_pm_ops, |
| 565 | .of_match_table = fsl_asoc_card_dt_ids, |
| 566 | }, |
| 567 | }; |
| 568 | module_platform_driver(fsl_asoc_card_driver); |
| 569 | |
| 570 | MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC"); |
| 571 | MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>"); |
| 572 | MODULE_ALIAS("platform:fsl-asoc-card"); |
| 573 | MODULE_LICENSE("GPL"); |