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Nicolin Chen708b4352014-07-30 19:27:38 +08001/*
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"
Zidan Wang50e0ee02015-08-14 19:11:09 +080026#include "../codecs/wm8960.h"
Nicolin Chen708b4352014-07-30 19:27:38 +080027
28#define RX 0
29#define TX 1
30
31/* Default DAI format without Master and Slave flag */
32#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
33
34/**
35 * CODEC private data
36 *
37 * @mclk_freq: Clock rate of MCLK
38 * @mclk_id: MCLK (or main clock) id for set_sysclk()
39 * @fll_id: FLL (or secordary clock) id for set_sysclk()
40 * @pll_id: PLL id for set_pll()
41 */
42struct codec_priv {
43 unsigned long mclk_freq;
44 u32 mclk_id;
45 u32 fll_id;
46 u32 pll_id;
47};
48
49/**
50 * CPU private data
51 *
52 * @sysclk_freq[2]: SYSCLK rates for set_sysclk()
53 * @sysclk_dir[2]: SYSCLK directions for set_sysclk()
54 * @sysclk_id[2]: SYSCLK ids for set_sysclk()
Nicolin Chencb3fc1f2014-10-24 16:48:13 -070055 * @slot_width: Slot width of each frame
Nicolin Chen708b4352014-07-30 19:27:38 +080056 *
57 * Note: [1] for tx and [0] for rx
58 */
59struct cpu_priv {
60 unsigned long sysclk_freq[2];
61 u32 sysclk_dir[2];
62 u32 sysclk_id[2];
Nicolin Chencb3fc1f2014-10-24 16:48:13 -070063 u32 slot_width;
Nicolin Chen708b4352014-07-30 19:27:38 +080064};
65
66/**
67 * Freescale Generic ASOC card private data
68 *
69 * @dai_link[3]: DAI link structure including normal one and DPCM link
70 * @pdev: platform device pointer
71 * @codec_priv: CODEC private data
72 * @cpu_priv: CPU private data
73 * @card: ASoC card structure
74 * @sample_rate: Current sample rate
75 * @sample_format: Current sample format
76 * @asrc_rate: ASRC sample rate used by Back-Ends
77 * @asrc_format: ASRC sample format used by Back-Ends
78 * @dai_fmt: DAI format between CPU and CODEC
79 * @name: Card name
80 */
81
82struct fsl_asoc_card_priv {
83 struct snd_soc_dai_link dai_link[3];
84 struct platform_device *pdev;
85 struct codec_priv codec_priv;
86 struct cpu_priv cpu_priv;
87 struct snd_soc_card card;
88 u32 sample_rate;
89 u32 sample_format;
90 u32 asrc_rate;
91 u32 asrc_format;
92 u32 dai_fmt;
93 char name[32];
94};
95
96/**
97 * This dapm route map exsits for DPCM link only.
98 * The other routes shall go through Device Tree.
99 */
100static const struct snd_soc_dapm_route audio_map[] = {
101 {"CPU-Playback", NULL, "ASRC-Playback"},
102 {"Playback", NULL, "CPU-Playback"},
103 {"ASRC-Capture", NULL, "CPU-Capture"},
104 {"CPU-Capture", NULL, "Capture"},
105};
106
107/* Add all possible widgets into here without being redundant */
108static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
109 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
110 SND_SOC_DAPM_LINE("Line In Jack", NULL),
111 SND_SOC_DAPM_HP("Headphone Jack", NULL),
112 SND_SOC_DAPM_SPK("Ext Spk", NULL),
113 SND_SOC_DAPM_MIC("Mic Jack", NULL),
114 SND_SOC_DAPM_MIC("AMIC", NULL),
115 SND_SOC_DAPM_MIC("DMIC", NULL),
116};
117
118static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
119 struct snd_pcm_hw_params *params)
120{
121 struct snd_soc_pcm_runtime *rtd = substream->private_data;
122 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
123 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
124 struct cpu_priv *cpu_priv = &priv->cpu_priv;
125 struct device *dev = rtd->card->dev;
126 int ret;
127
128 priv->sample_rate = params_rate(params);
129 priv->sample_format = params_format(params);
130
Nicolin Chen41282922014-10-24 16:48:11 -0700131 /*
132 * If codec-dai is DAI Master and all configurations are already in the
133 * set_bias_level(), bypass the remaining settings in hw_params().
134 * Note: (dai_fmt & CBM_CFM) includes CBM_CFM and CBM_CFS.
135 */
136 if (priv->card.set_bias_level && priv->dai_fmt & SND_SOC_DAIFMT_CBM_CFM)
Nicolin Chen708b4352014-07-30 19:27:38 +0800137 return 0;
138
139 /* Specific configurations of DAIs starts from here */
140 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
141 cpu_priv->sysclk_freq[tx],
142 cpu_priv->sysclk_dir[tx]);
143 if (ret) {
144 dev_err(dev, "failed to set sysclk for cpu dai\n");
145 return ret;
146 }
147
Nicolin Chencb3fc1f2014-10-24 16:48:13 -0700148 if (cpu_priv->slot_width) {
149 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2,
150 cpu_priv->slot_width);
151 if (ret) {
152 dev_err(dev, "failed to set TDM slot for cpu dai\n");
153 return ret;
154 }
155 }
156
Nicolin Chen708b4352014-07-30 19:27:38 +0800157 return 0;
158}
159
160static struct snd_soc_ops fsl_asoc_card_ops = {
161 .hw_params = fsl_asoc_card_hw_params,
162};
163
164static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
165 struct snd_pcm_hw_params *params)
166{
167 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
168 struct snd_interval *rate;
169 struct snd_mask *mask;
170
171 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
172 rate->max = rate->min = priv->asrc_rate;
173
174 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
175 snd_mask_none(mask);
176 snd_mask_set(mask, priv->asrc_format);
177
178 return 0;
179}
180
181static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
182 /* Default ASoC DAI Link*/
183 {
184 .name = "HiFi",
185 .stream_name = "HiFi",
186 .ops = &fsl_asoc_card_ops,
187 },
188 /* DPCM Link between Front-End and Back-End (Optional) */
189 {
190 .name = "HiFi-ASRC-FE",
191 .stream_name = "HiFi-ASRC-FE",
192 .codec_name = "snd-soc-dummy",
193 .codec_dai_name = "snd-soc-dummy-dai",
194 .dpcm_playback = 1,
195 .dpcm_capture = 1,
196 .dynamic = 1,
197 },
198 {
199 .name = "HiFi-ASRC-BE",
200 .stream_name = "HiFi-ASRC-BE",
201 .platform_name = "snd-soc-dummy",
202 .be_hw_params_fixup = be_hw_params_fixup,
203 .ops = &fsl_asoc_card_ops,
204 .dpcm_playback = 1,
205 .dpcm_capture = 1,
206 .no_pcm = 1,
207 },
208};
209
210static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
211 struct snd_soc_dapm_context *dapm,
212 enum snd_soc_bias_level level)
213{
214 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
215 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
216 struct codec_priv *codec_priv = &priv->codec_priv;
217 struct device *dev = card->dev;
218 unsigned int pll_out;
219 int ret;
220
221 if (dapm->dev != codec_dai->dev)
222 return 0;
223
224 switch (level) {
225 case SND_SOC_BIAS_PREPARE:
226 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
227 break;
228
229 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
230 pll_out = priv->sample_rate * 384;
231 else
232 pll_out = priv->sample_rate * 256;
233
234 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
235 codec_priv->mclk_id,
236 codec_priv->mclk_freq, pll_out);
237 if (ret) {
238 dev_err(dev, "failed to start FLL: %d\n", ret);
239 return ret;
240 }
241
242 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
243 pll_out, SND_SOC_CLOCK_IN);
244 if (ret) {
245 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
246 return ret;
247 }
248 break;
249
250 case SND_SOC_BIAS_STANDBY:
251 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
252 break;
253
254 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
255 codec_priv->mclk_freq,
256 SND_SOC_CLOCK_IN);
257 if (ret) {
258 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
259 return ret;
260 }
261
262 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
263 if (ret) {
264 dev_err(dev, "failed to stop FLL: %d\n", ret);
265 return ret;
266 }
267 break;
268
269 default:
270 break;
271 }
272
273 return 0;
274}
275
276static int fsl_asoc_card_audmux_init(struct device_node *np,
277 struct fsl_asoc_card_priv *priv)
278{
279 struct device *dev = &priv->pdev->dev;
280 u32 int_ptcr = 0, ext_ptcr = 0;
281 int int_port, ext_port;
282 int ret;
283
284 ret = of_property_read_u32(np, "mux-int-port", &int_port);
285 if (ret) {
286 dev_err(dev, "mux-int-port missing or invalid\n");
287 return ret;
288 }
289 ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
290 if (ret) {
291 dev_err(dev, "mux-ext-port missing or invalid\n");
292 return ret;
293 }
294
295 /*
296 * The port numbering in the hardware manual starts at 1, while
297 * the AUDMUX API expects it starts at 0.
298 */
299 int_port--;
300 ext_port--;
301
302 /*
303 * Use asynchronous mode (6 wires) for all cases.
304 * If only 4 wires are needed, just set SSI into
305 * synchronous mode and enable 4 PADs in IOMUX.
306 */
307 switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
308 case SND_SOC_DAIFMT_CBM_CFM:
309 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
310 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
311 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
312 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
313 IMX_AUDMUX_V2_PTCR_RFSDIR |
314 IMX_AUDMUX_V2_PTCR_RCLKDIR |
315 IMX_AUDMUX_V2_PTCR_TFSDIR |
316 IMX_AUDMUX_V2_PTCR_TCLKDIR;
317 break;
318 case SND_SOC_DAIFMT_CBM_CFS:
319 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
320 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
321 IMX_AUDMUX_V2_PTCR_RCLKDIR |
322 IMX_AUDMUX_V2_PTCR_TCLKDIR;
323 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
324 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
325 IMX_AUDMUX_V2_PTCR_RFSDIR |
326 IMX_AUDMUX_V2_PTCR_TFSDIR;
327 break;
328 case SND_SOC_DAIFMT_CBS_CFM:
329 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
330 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
331 IMX_AUDMUX_V2_PTCR_RFSDIR |
332 IMX_AUDMUX_V2_PTCR_TFSDIR;
333 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
334 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
335 IMX_AUDMUX_V2_PTCR_RCLKDIR |
336 IMX_AUDMUX_V2_PTCR_TCLKDIR;
337 break;
338 case SND_SOC_DAIFMT_CBS_CFS:
339 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
340 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
341 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
342 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
343 IMX_AUDMUX_V2_PTCR_RFSDIR |
344 IMX_AUDMUX_V2_PTCR_RCLKDIR |
345 IMX_AUDMUX_V2_PTCR_TFSDIR |
346 IMX_AUDMUX_V2_PTCR_TCLKDIR;
347 break;
348 default:
349 return -EINVAL;
350 }
351
352 /* Asynchronous mode can not be set along with RCLKDIR */
353 ret = imx_audmux_v2_configure_port(int_port, 0,
354 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
355 if (ret) {
356 dev_err(dev, "audmux internal port setup failed\n");
357 return ret;
358 }
359
360 ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
361 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
362 if (ret) {
363 dev_err(dev, "audmux internal port setup failed\n");
364 return ret;
365 }
366
367 ret = imx_audmux_v2_configure_port(ext_port, 0,
368 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
369 if (ret) {
370 dev_err(dev, "audmux external port setup failed\n");
371 return ret;
372 }
373
374 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
375 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
376 if (ret) {
377 dev_err(dev, "audmux external port setup failed\n");
378 return ret;
379 }
380
381 return 0;
382}
383
384static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
385{
386 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
387 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
388 struct codec_priv *codec_priv = &priv->codec_priv;
389 struct device *dev = card->dev;
390 int ret;
391
392 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
393 codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
394 if (ret) {
395 dev_err(dev, "failed to set sysclk in %s\n", __func__);
396 return ret;
397 }
398
399 return 0;
400}
401
402static int fsl_asoc_card_probe(struct platform_device *pdev)
403{
404 struct device_node *cpu_np, *codec_np, *asrc_np;
405 struct device_node *np = pdev->dev.of_node;
406 struct platform_device *asrc_pdev = NULL;
407 struct platform_device *cpu_pdev;
408 struct fsl_asoc_card_priv *priv;
409 struct i2c_client *codec_dev;
410 struct clk *codec_clk;
Nicolin Chen114bb132015-08-12 13:06:12 -0700411 const char *codec_dai_name;
Nicolin Chen708b4352014-07-30 19:27:38 +0800412 u32 width;
413 int ret;
414
415 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
416 if (!priv)
417 return -ENOMEM;
418
419 cpu_np = of_parse_phandle(np, "audio-cpu", 0);
420 /* Give a chance to old DT binding */
421 if (!cpu_np)
422 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
423 codec_np = of_parse_phandle(np, "audio-codec", 0);
424 if (!cpu_np || !codec_np) {
425 dev_err(&pdev->dev, "phandle missing or invalid\n");
426 ret = -EINVAL;
427 goto fail;
428 }
429
430 cpu_pdev = of_find_device_by_node(cpu_np);
431 if (!cpu_pdev) {
432 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
433 ret = -EINVAL;
434 goto fail;
435 }
436
437 codec_dev = of_find_i2c_device_by_node(codec_np);
438 if (!codec_dev) {
439 dev_err(&pdev->dev, "failed to find codec platform device\n");
440 ret = -EINVAL;
441 goto fail;
442 }
443
444 asrc_np = of_parse_phandle(np, "audio-asrc", 0);
445 if (asrc_np)
446 asrc_pdev = of_find_device_by_node(asrc_np);
447
448 /* Get the MCLK rate only, and leave it controlled by CODEC drivers */
449 codec_clk = clk_get(&codec_dev->dev, NULL);
450 if (!IS_ERR(codec_clk)) {
451 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
452 clk_put(codec_clk);
453 }
454
455 /* Default sample rate and format, will be updated in hw_params() */
456 priv->sample_rate = 44100;
457 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
458
459 /* Assign a default DAI format, and allow each card to overwrite it */
460 priv->dai_fmt = DAI_FMT_BASE;
461
462 /* Diversify the card configurations */
463 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
Nicolin Chen114bb132015-08-12 13:06:12 -0700464 codec_dai_name = "cs42888";
Nicolin Chen708b4352014-07-30 19:27:38 +0800465 priv->card.set_bias_level = NULL;
466 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
467 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
468 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
469 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
Nicolin Chencb3fc1f2014-10-24 16:48:13 -0700470 priv->cpu_priv.slot_width = 32;
Nicolin Chen708b4352014-07-30 19:27:38 +0800471 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
472 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
Nicolin Chen114bb132015-08-12 13:06:12 -0700473 codec_dai_name = "sgtl5000";
Nicolin Chen708b4352014-07-30 19:27:38 +0800474 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
475 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
476 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
Nicolin Chen114bb132015-08-12 13:06:12 -0700477 codec_dai_name = "wm8962";
Nicolin Chen708b4352014-07-30 19:27:38 +0800478 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
479 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
480 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
481 priv->codec_priv.pll_id = WM8962_FLL;
482 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
Zidan Wang50e0ee02015-08-14 19:11:09 +0800483 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
484 codec_dai_name = "wm8960-hifi";
485 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
486 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
487 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
488 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
Nicolin Chen708b4352014-07-30 19:27:38 +0800489 } else {
490 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
Maciej S. Szmigiero6bd3c6f2015-08-31 17:07:12 +0200491 ret = -EINVAL;
492 goto asrc_fail;
Nicolin Chen708b4352014-07-30 19:27:38 +0800493 }
494
495 /* Common settings for corresponding Freescale CPU DAI driver */
496 if (strstr(cpu_np->name, "ssi")) {
497 /* Only SSI needs to configure AUDMUX */
498 ret = fsl_asoc_card_audmux_init(np, priv);
499 if (ret) {
500 dev_err(&pdev->dev, "failed to init audmux\n");
Shengjiu Wang5f376712014-08-18 16:38:39 +0800501 goto asrc_fail;
Nicolin Chen708b4352014-07-30 19:27:38 +0800502 }
503 } else if (strstr(cpu_np->name, "esai")) {
504 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
505 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
506 } else if (strstr(cpu_np->name, "sai")) {
507 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
508 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
509 }
510
511 sprintf(priv->name, "%s-audio", codec_dev->name);
512
513 /* Initialize sound card */
514 priv->pdev = pdev;
515 priv->card.dev = &pdev->dev;
516 priv->card.name = priv->name;
517 priv->card.dai_link = priv->dai_link;
518 priv->card.dapm_routes = audio_map;
519 priv->card.late_probe = fsl_asoc_card_late_probe;
520 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
521 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
522 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
523
524 memcpy(priv->dai_link, fsl_asoc_card_dai,
525 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
526
Nicolin Chen31858782015-02-14 17:22:50 -0800527 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
528 if (ret) {
529 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
530 goto asrc_fail;
531 }
532
Nicolin Chen708b4352014-07-30 19:27:38 +0800533 /* Normal DAI Link */
534 priv->dai_link[0].cpu_of_node = cpu_np;
535 priv->dai_link[0].codec_of_node = codec_np;
Nicolin Chen114bb132015-08-12 13:06:12 -0700536 priv->dai_link[0].codec_dai_name = codec_dai_name;
Nicolin Chen708b4352014-07-30 19:27:38 +0800537 priv->dai_link[0].platform_of_node = cpu_np;
538 priv->dai_link[0].dai_fmt = priv->dai_fmt;
539 priv->card.num_links = 1;
540
541 if (asrc_pdev) {
542 /* DPCM DAI Links only if ASRC exsits */
543 priv->dai_link[1].cpu_of_node = asrc_np;
544 priv->dai_link[1].platform_of_node = asrc_np;
Nicolin Chen114bb132015-08-12 13:06:12 -0700545 priv->dai_link[2].codec_dai_name = codec_dai_name;
Nicolin Chen708b4352014-07-30 19:27:38 +0800546 priv->dai_link[2].codec_of_node = codec_np;
547 priv->dai_link[2].cpu_of_node = cpu_np;
548 priv->dai_link[2].dai_fmt = priv->dai_fmt;
549 priv->card.num_links = 3;
550
551 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
552 &priv->asrc_rate);
553 if (ret) {
554 dev_err(&pdev->dev, "failed to get output rate\n");
555 ret = -EINVAL;
Shengjiu Wang5f376712014-08-18 16:38:39 +0800556 goto asrc_fail;
Nicolin Chen708b4352014-07-30 19:27:38 +0800557 }
558
559 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
560 if (ret) {
561 dev_err(&pdev->dev, "failed to get output rate\n");
562 ret = -EINVAL;
Shengjiu Wang5f376712014-08-18 16:38:39 +0800563 goto asrc_fail;
Nicolin Chen708b4352014-07-30 19:27:38 +0800564 }
565
566 if (width == 24)
567 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
568 else
569 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
570 }
571
572 /* Finish card registering */
573 platform_set_drvdata(pdev, priv);
574 snd_soc_card_set_drvdata(&priv->card, priv);
575
576 ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
577 if (ret)
578 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
579
Shengjiu Wang5f376712014-08-18 16:38:39 +0800580asrc_fail:
581 of_node_put(asrc_np);
Nicolin Chen708b4352014-07-30 19:27:38 +0800582fail:
583 of_node_put(codec_np);
Nicolin Chen708b4352014-07-30 19:27:38 +0800584 of_node_put(cpu_np);
585
586 return ret;
587}
588
589static const struct of_device_id fsl_asoc_card_dt_ids[] = {
590 { .compatible = "fsl,imx-audio-cs42888", },
591 { .compatible = "fsl,imx-audio-sgtl5000", },
592 { .compatible = "fsl,imx-audio-wm8962", },
Zidan Wang50e0ee02015-08-14 19:11:09 +0800593 { .compatible = "fsl,imx-audio-wm8960", },
Nicolin Chen708b4352014-07-30 19:27:38 +0800594 {}
595};
596
597static struct platform_driver fsl_asoc_card_driver = {
598 .probe = fsl_asoc_card_probe,
599 .driver = {
600 .name = "fsl-asoc-card",
601 .pm = &snd_soc_pm_ops,
602 .of_match_table = fsl_asoc_card_dt_ids,
603 },
604};
605module_platform_driver(fsl_asoc_card_driver);
606
607MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
608MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
609MODULE_ALIAS("platform:fsl-asoc-card");
610MODULE_LICENSE("GPL");