1 // SPDX-License-Identifier: GPL-2.0+
2 #include <linux/extcon.h>
3 #include <linux/iio/consumer.h>
4 #include <linux/iio/iio.h>
5 #include <linux/input-event-codes.h>
6 #include <linux/mfd/wm8994/registers.h>
7 #include <linux/module.h>
8 #include <linux/of.h>
9 #include <linux/of_device.h>
10 #include <linux/of_gpio.h>
11 #include <linux/regulator/consumer.h>
12 #include <sound/jack.h>
13 #include <sound/pcm_params.h>
14 #include <sound/soc.h>
15
16 #include "i2s.h"
17 #include "../codecs/wm8994.h"
18
19 #define ARIES_MCLK1_FREQ 24000000
20
21 struct aries_wm8994_variant {
22 unsigned int modem_dai_fmt;
23 bool has_fm_radio;
24 };
25
26 struct aries_wm8994_data {
27 struct extcon_dev *usb_extcon;
28 struct regulator *reg_main_micbias;
29 struct regulator *reg_headset_micbias;
30 struct gpio_desc *gpio_headset_detect;
31 struct gpio_desc *gpio_headset_key;
32 struct gpio_desc *gpio_earpath_sel;
33 struct iio_channel *adc;
34 const struct aries_wm8994_variant *variant;
35 };
36
37 /* USB dock */
38 static struct snd_soc_jack aries_dock;
39
40 static struct snd_soc_jack_pin dock_pins[] = {
41 {
42 .pin = "LINE",
43 .mask = SND_JACK_LINEOUT,
44 },
45 };
46
aries_extcon_notifier(struct notifier_block * this,unsigned long connected,void * _cmd)47 static int aries_extcon_notifier(struct notifier_block *this,
48 unsigned long connected, void *_cmd)
49 {
50 if (connected)
51 snd_soc_jack_report(&aries_dock, SND_JACK_LINEOUT,
52 SND_JACK_LINEOUT);
53 else
54 snd_soc_jack_report(&aries_dock, 0, SND_JACK_LINEOUT);
55
56 return NOTIFY_DONE;
57 }
58
59 static struct notifier_block aries_extcon_notifier_block = {
60 .notifier_call = aries_extcon_notifier,
61 };
62
63 /* Headset jack */
64 static struct snd_soc_jack aries_headset;
65
66 static struct snd_soc_jack_pin jack_pins[] = {
67 {
68 .pin = "HP",
69 .mask = SND_JACK_HEADPHONE,
70 }, {
71 .pin = "Headset Mic",
72 .mask = SND_JACK_MICROPHONE,
73 },
74 };
75
76 static struct snd_soc_jack_zone headset_zones[] = {
77 {
78 .min_mv = 0,
79 .max_mv = 241,
80 .jack_type = SND_JACK_HEADPHONE,
81 }, {
82 .min_mv = 242,
83 .max_mv = 2980,
84 .jack_type = SND_JACK_HEADSET,
85 }, {
86 .min_mv = 2981,
87 .max_mv = UINT_MAX,
88 .jack_type = SND_JACK_HEADPHONE,
89 },
90 };
91
headset_det_irq_thread(int irq,void * data)92 static irqreturn_t headset_det_irq_thread(int irq, void *data)
93 {
94 struct aries_wm8994_data *priv = (struct aries_wm8994_data *) data;
95 int ret = 0;
96 int time_left_ms = 300;
97 int adc;
98
99 while (time_left_ms > 0) {
100 if (!gpiod_get_value(priv->gpio_headset_detect)) {
101 snd_soc_jack_report(&aries_headset, 0,
102 SND_JACK_HEADSET);
103 gpiod_set_value(priv->gpio_earpath_sel, 0);
104 return IRQ_HANDLED;
105 }
106 msleep(20);
107 time_left_ms -= 20;
108 }
109
110 /* Temporarily enable micbias and earpath selector */
111 ret = regulator_enable(priv->reg_headset_micbias);
112 if (ret)
113 pr_err("%s failed to enable micbias: %d", __func__, ret);
114
115 gpiod_set_value(priv->gpio_earpath_sel, 1);
116
117 ret = iio_read_channel_processed(priv->adc, &adc);
118 if (ret < 0) {
119 /* failed to read ADC, so assume headphone */
120 pr_err("%s failed to read ADC, assuming headphones", __func__);
121 snd_soc_jack_report(&aries_headset, SND_JACK_HEADPHONE,
122 SND_JACK_HEADSET);
123 } else {
124 snd_soc_jack_report(&aries_headset,
125 snd_soc_jack_get_type(&aries_headset, adc),
126 SND_JACK_HEADSET);
127 }
128
129 ret = regulator_disable(priv->reg_headset_micbias);
130 if (ret)
131 pr_err("%s failed disable micbias: %d", __func__, ret);
132
133 /* Disable earpath selector when no mic connected */
134 if (!(aries_headset.status & SND_JACK_MICROPHONE))
135 gpiod_set_value(priv->gpio_earpath_sel, 0);
136
137 return IRQ_HANDLED;
138 }
139
headset_button_check(void * data)140 static int headset_button_check(void *data)
141 {
142 struct aries_wm8994_data *priv = (struct aries_wm8994_data *) data;
143
144 /* Filter out keypresses when 4 pole jack not detected */
145 if (gpiod_get_value_cansleep(priv->gpio_headset_key) &&
146 aries_headset.status & SND_JACK_MICROPHONE)
147 return SND_JACK_BTN_0;
148
149 return 0;
150 }
151
152 static struct snd_soc_jack_gpio headset_button_gpio[] = {
153 {
154 .name = "Media Button",
155 .report = SND_JACK_BTN_0,
156 .debounce_time = 30,
157 .jack_status_check = headset_button_check,
158 },
159 };
160
aries_spk_cfg(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)161 static int aries_spk_cfg(struct snd_soc_dapm_widget *w,
162 struct snd_kcontrol *kcontrol, int event)
163 {
164 struct snd_soc_card *card = w->dapm->card;
165 struct snd_soc_pcm_runtime *rtd;
166 struct snd_soc_component *component;
167 int ret = 0;
168
169 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
170 component = asoc_rtd_to_codec(rtd, 0)->component;
171
172 /**
173 * We have an odd setup - the SPKMODE pin is pulled up so
174 * we only have access to the left side SPK configs,
175 * but SPKOUTR isn't bridged so when playing back in
176 * stereo, we only get the left hand channel. The only
177 * option we're left with is to force the AIF into mono
178 * mode.
179 */
180 switch (event) {
181 case SND_SOC_DAPM_POST_PMU:
182 ret = snd_soc_component_update_bits(component,
183 WM8994_AIF1_DAC1_FILTERS_1,
184 WM8994_AIF1DAC1_MONO, WM8994_AIF1DAC1_MONO);
185 break;
186 case SND_SOC_DAPM_PRE_PMD:
187 ret = snd_soc_component_update_bits(component,
188 WM8994_AIF1_DAC1_FILTERS_1,
189 WM8994_AIF1DAC1_MONO, 0);
190 break;
191 }
192
193 return ret;
194 }
195
aries_main_bias(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)196 static int aries_main_bias(struct snd_soc_dapm_widget *w,
197 struct snd_kcontrol *kcontrol, int event)
198 {
199 struct snd_soc_card *card = w->dapm->card;
200 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
201 int ret = 0;
202
203 switch (event) {
204 case SND_SOC_DAPM_PRE_PMU:
205 ret = regulator_enable(priv->reg_main_micbias);
206 break;
207 case SND_SOC_DAPM_POST_PMD:
208 ret = regulator_disable(priv->reg_main_micbias);
209 break;
210 }
211
212 return ret;
213 }
214
aries_headset_bias(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)215 static int aries_headset_bias(struct snd_soc_dapm_widget *w,
216 struct snd_kcontrol *kcontrol, int event)
217 {
218 struct snd_soc_card *card = w->dapm->card;
219 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
220 int ret = 0;
221
222 switch (event) {
223 case SND_SOC_DAPM_PRE_PMU:
224 ret = regulator_enable(priv->reg_headset_micbias);
225 break;
226 case SND_SOC_DAPM_POST_PMD:
227 ret = regulator_disable(priv->reg_headset_micbias);
228 break;
229 }
230
231 return ret;
232 }
233
234 static const struct snd_kcontrol_new aries_controls[] = {
235 SOC_DAPM_PIN_SWITCH("Modem In"),
236 SOC_DAPM_PIN_SWITCH("Modem Out"),
237 };
238
239 static const struct snd_soc_dapm_widget aries_dapm_widgets[] = {
240 SND_SOC_DAPM_HP("HP", NULL),
241
242 SND_SOC_DAPM_SPK("SPK", aries_spk_cfg),
243 SND_SOC_DAPM_SPK("RCV", NULL),
244
245 SND_SOC_DAPM_LINE("LINE", NULL),
246
247 SND_SOC_DAPM_MIC("Main Mic", aries_main_bias),
248 SND_SOC_DAPM_MIC("Headset Mic", aries_headset_bias),
249
250 SND_SOC_DAPM_MIC("Bluetooth Mic", NULL),
251 SND_SOC_DAPM_SPK("Bluetooth SPK", NULL),
252
253 SND_SOC_DAPM_LINE("Modem In", NULL),
254 SND_SOC_DAPM_LINE("Modem Out", NULL),
255
256 /* This must be last as it is conditionally not used */
257 SND_SOC_DAPM_LINE("FM In", NULL),
258 };
259
aries_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)260 static int aries_hw_params(struct snd_pcm_substream *substream,
261 struct snd_pcm_hw_params *params)
262 {
263 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
264 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
265 unsigned int pll_out;
266 int ret;
267
268 /* AIF1CLK should be >=3MHz for optimal performance */
269 if (params_width(params) == 24)
270 pll_out = params_rate(params) * 384;
271 else if (params_rate(params) == 8000 || params_rate(params) == 11025)
272 pll_out = params_rate(params) * 512;
273 else
274 pll_out = params_rate(params) * 256;
275
276 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
277 ARIES_MCLK1_FREQ, pll_out);
278 if (ret < 0)
279 return ret;
280
281 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
282 pll_out, SND_SOC_CLOCK_IN);
283 if (ret < 0)
284 return ret;
285
286 return 0;
287 }
288
aries_hw_free(struct snd_pcm_substream * substream)289 static int aries_hw_free(struct snd_pcm_substream *substream)
290 {
291 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
292 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
293 int ret;
294
295 /* Switch sysclk to MCLK1 */
296 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1,
297 ARIES_MCLK1_FREQ, SND_SOC_CLOCK_IN);
298 if (ret < 0)
299 return ret;
300
301 /* Stop PLL */
302 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
303 ARIES_MCLK1_FREQ, 0);
304 if (ret < 0)
305 return ret;
306
307 return 0;
308 }
309
310 /*
311 * Main DAI operations
312 */
313 static struct snd_soc_ops aries_ops = {
314 .hw_params = aries_hw_params,
315 .hw_free = aries_hw_free,
316 };
317
aries_baseband_init(struct snd_soc_pcm_runtime * rtd)318 static int aries_baseband_init(struct snd_soc_pcm_runtime *rtd)
319 {
320 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
321 unsigned int pll_out;
322 int ret;
323
324 pll_out = 8000 * 512;
325
326 /* Set the codec FLL */
327 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL2, WM8994_FLL_SRC_MCLK1,
328 ARIES_MCLK1_FREQ, pll_out);
329 if (ret < 0)
330 return ret;
331
332 /* Set the codec system clock */
333 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL2,
334 pll_out, SND_SOC_CLOCK_IN);
335 if (ret < 0)
336 return ret;
337
338 return 0;
339 }
340
aries_late_probe(struct snd_soc_card * card)341 static int aries_late_probe(struct snd_soc_card *card)
342 {
343 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
344 int ret, irq;
345
346 ret = snd_soc_card_jack_new(card, "Dock", SND_JACK_LINEOUT,
347 &aries_dock, dock_pins, ARRAY_SIZE(dock_pins));
348 if (ret)
349 return ret;
350
351 ret = devm_extcon_register_notifier(card->dev,
352 priv->usb_extcon, EXTCON_JACK_LINE_OUT,
353 &aries_extcon_notifier_block);
354 if (ret)
355 return ret;
356
357 if (extcon_get_state(priv->usb_extcon,
358 EXTCON_JACK_LINE_OUT) > 0)
359 snd_soc_jack_report(&aries_dock, SND_JACK_LINEOUT,
360 SND_JACK_LINEOUT);
361 else
362 snd_soc_jack_report(&aries_dock, 0, SND_JACK_LINEOUT);
363
364 ret = snd_soc_card_jack_new(card, "Headset",
365 SND_JACK_HEADSET | SND_JACK_BTN_0,
366 &aries_headset,
367 jack_pins, ARRAY_SIZE(jack_pins));
368 if (ret)
369 return ret;
370
371 ret = snd_soc_jack_add_zones(&aries_headset, ARRAY_SIZE(headset_zones),
372 headset_zones);
373 if (ret)
374 return ret;
375
376 irq = gpiod_to_irq(priv->gpio_headset_detect);
377 if (irq < 0) {
378 dev_err(card->dev, "Failed to map headset detect gpio to irq");
379 return -EINVAL;
380 }
381
382 ret = devm_request_threaded_irq(card->dev, irq, NULL,
383 headset_det_irq_thread,
384 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
385 IRQF_ONESHOT, "headset_detect", priv);
386 if (ret) {
387 dev_err(card->dev, "Failed to request headset detect irq");
388 return ret;
389 }
390
391 headset_button_gpio[0].data = priv;
392 headset_button_gpio[0].desc = priv->gpio_headset_key;
393
394 snd_jack_set_key(aries_headset.jack, SND_JACK_BTN_0, KEY_MEDIA);
395
396 return snd_soc_jack_add_gpios(&aries_headset,
397 ARRAY_SIZE(headset_button_gpio), headset_button_gpio);
398 }
399
400 static const struct snd_soc_pcm_stream baseband_params = {
401 .formats = SNDRV_PCM_FMTBIT_S16_LE,
402 .rate_min = 8000,
403 .rate_max = 8000,
404 .channels_min = 1,
405 .channels_max = 1,
406 };
407
408 static const struct snd_soc_pcm_stream bluetooth_params = {
409 .formats = SNDRV_PCM_FMTBIT_S16_LE,
410 .rate_min = 8000,
411 .rate_max = 8000,
412 .channels_min = 1,
413 .channels_max = 2,
414 };
415
416 static const struct snd_soc_dapm_widget aries_modem_widgets[] = {
417 SND_SOC_DAPM_INPUT("Modem RX"),
418 SND_SOC_DAPM_OUTPUT("Modem TX"),
419 };
420
421 static const struct snd_soc_dapm_route aries_modem_routes[] = {
422 { "Modem Capture", NULL, "Modem RX" },
423 { "Modem TX", NULL, "Modem Playback" },
424 };
425
426 static const struct snd_soc_component_driver aries_component = {
427 .name = "aries-audio",
428 .dapm_widgets = aries_modem_widgets,
429 .num_dapm_widgets = ARRAY_SIZE(aries_modem_widgets),
430 .dapm_routes = aries_modem_routes,
431 .num_dapm_routes = ARRAY_SIZE(aries_modem_routes),
432 .idle_bias_on = 1,
433 .use_pmdown_time = 1,
434 .endianness = 1,
435 .non_legacy_dai_naming = 1,
436 };
437
438 static struct snd_soc_dai_driver aries_ext_dai[] = {
439 {
440 .name = "Voice call",
441 .playback = {
442 .stream_name = "Modem Playback",
443 .channels_min = 1,
444 .channels_max = 1,
445 .rate_min = 8000,
446 .rate_max = 8000,
447 .rates = SNDRV_PCM_RATE_8000,
448 .formats = SNDRV_PCM_FMTBIT_S16_LE,
449 },
450 .capture = {
451 .stream_name = "Modem Capture",
452 .channels_min = 1,
453 .channels_max = 1,
454 .rate_min = 8000,
455 .rate_max = 8000,
456 .rates = SNDRV_PCM_RATE_8000,
457 .formats = SNDRV_PCM_FMTBIT_S16_LE,
458 },
459 },
460 };
461
462 SND_SOC_DAILINK_DEFS(aif1,
463 DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)),
464 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")),
465 DAILINK_COMP_ARRAY(COMP_EMPTY()));
466
467 SND_SOC_DAILINK_DEFS(baseband,
468 DAILINK_COMP_ARRAY(COMP_CPU("Voice call")),
469 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif2")));
470
471 SND_SOC_DAILINK_DEFS(bluetooth,
472 DAILINK_COMP_ARRAY(COMP_CPU("bt-sco-pcm")),
473 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif3")));
474
475 static struct snd_soc_dai_link aries_dai[] = {
476 {
477 .name = "WM8994 AIF1",
478 .stream_name = "HiFi",
479 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
480 SND_SOC_DAIFMT_CBM_CFM,
481 .ops = &aries_ops,
482 SND_SOC_DAILINK_REG(aif1),
483 },
484 {
485 .name = "WM8994 AIF2",
486 .stream_name = "Baseband",
487 .init = &aries_baseband_init,
488 .params = &baseband_params,
489 .ignore_suspend = 1,
490 SND_SOC_DAILINK_REG(baseband),
491 },
492 {
493 .name = "WM8994 AIF3",
494 .stream_name = "Bluetooth",
495 .params = &bluetooth_params,
496 .ignore_suspend = 1,
497 SND_SOC_DAILINK_REG(bluetooth),
498 },
499 };
500
501 static struct snd_soc_card aries_card = {
502 .name = "ARIES",
503 .owner = THIS_MODULE,
504 .dai_link = aries_dai,
505 .num_links = ARRAY_SIZE(aries_dai),
506 .controls = aries_controls,
507 .num_controls = ARRAY_SIZE(aries_controls),
508 .dapm_widgets = aries_dapm_widgets,
509 .num_dapm_widgets = ARRAY_SIZE(aries_dapm_widgets),
510 .late_probe = aries_late_probe,
511 };
512
513 static const struct aries_wm8994_variant fascinate4g_variant = {
514 .modem_dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBS_CFS
515 | SND_SOC_DAIFMT_IB_NF,
516 .has_fm_radio = false,
517 };
518
519 static const struct aries_wm8994_variant aries_variant = {
520 .modem_dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM
521 | SND_SOC_DAIFMT_IB_NF,
522 .has_fm_radio = true,
523 };
524
525 static const struct of_device_id samsung_wm8994_of_match[] = {
526 {
527 .compatible = "samsung,fascinate4g-wm8994",
528 .data = &fascinate4g_variant,
529 },
530 {
531 .compatible = "samsung,aries-wm8994",
532 .data = &aries_variant,
533 },
534 { /* sentinel */ },
535 };
536 MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
537
aries_audio_probe(struct platform_device * pdev)538 static int aries_audio_probe(struct platform_device *pdev)
539 {
540 struct device_node *np = pdev->dev.of_node;
541 struct device_node *cpu, *codec, *extcon_np;
542 struct device *dev = &pdev->dev;
543 struct snd_soc_card *card = &aries_card;
544 struct aries_wm8994_data *priv;
545 struct snd_soc_dai_link *dai_link;
546 const struct of_device_id *match;
547 int ret, i;
548
549 if (!np)
550 return -EINVAL;
551
552 card->dev = dev;
553
554 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
555 if (!priv)
556 return -ENOMEM;
557
558 snd_soc_card_set_drvdata(card, priv);
559
560 match = of_match_node(samsung_wm8994_of_match, np);
561 priv->variant = match->data;
562
563 /* Remove FM widget if not present */
564 if (!priv->variant->has_fm_radio)
565 card->num_dapm_widgets--;
566
567 priv->reg_main_micbias = devm_regulator_get(dev, "main-micbias");
568 if (IS_ERR(priv->reg_main_micbias)) {
569 dev_err(dev, "Failed to get main micbias regulator\n");
570 return PTR_ERR(priv->reg_main_micbias);
571 }
572
573 priv->reg_headset_micbias = devm_regulator_get(dev, "headset-micbias");
574 if (IS_ERR(priv->reg_headset_micbias)) {
575 dev_err(dev, "Failed to get headset micbias regulator\n");
576 return PTR_ERR(priv->reg_headset_micbias);
577 }
578
579 priv->gpio_earpath_sel = devm_gpiod_get(dev, "earpath-sel",
580 GPIOD_OUT_LOW);
581 if (IS_ERR(priv->gpio_earpath_sel)) {
582 dev_err(dev, "Failed to get earpath selector gpio");
583 return PTR_ERR(priv->gpio_earpath_sel);
584 }
585
586 extcon_np = of_parse_phandle(np, "extcon", 0);
587 priv->usb_extcon = extcon_find_edev_by_node(extcon_np);
588 if (IS_ERR(priv->usb_extcon)) {
589 if (PTR_ERR(priv->usb_extcon) != -EPROBE_DEFER)
590 dev_err(dev, "Failed to get extcon device");
591 return PTR_ERR(priv->usb_extcon);
592 }
593 of_node_put(extcon_np);
594
595 priv->adc = devm_iio_channel_get(dev, "headset-detect");
596 if (IS_ERR(priv->adc)) {
597 if (PTR_ERR(priv->adc) != -EPROBE_DEFER)
598 dev_err(dev, "Failed to get ADC channel");
599 return PTR_ERR(priv->adc);
600 }
601 if (priv->adc->channel->type != IIO_VOLTAGE)
602 return -EINVAL;
603
604 priv->gpio_headset_key = devm_gpiod_get(dev, "headset-key",
605 GPIOD_IN);
606 if (IS_ERR(priv->gpio_headset_key)) {
607 dev_err(dev, "Failed to get headset key gpio");
608 return PTR_ERR(priv->gpio_headset_key);
609 }
610
611 priv->gpio_headset_detect = devm_gpiod_get(dev,
612 "headset-detect", GPIOD_IN);
613 if (IS_ERR(priv->gpio_headset_detect)) {
614 dev_err(dev, "Failed to get headset detect gpio");
615 return PTR_ERR(priv->gpio_headset_detect);
616 }
617
618 /* Update card-name if provided through DT, else use default name */
619 snd_soc_of_parse_card_name(card, "model");
620
621 ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
622 if (ret < 0) {
623 dev_err(dev, "Audio routing invalid/unspecified\n");
624 return ret;
625 }
626
627 aries_dai[1].dai_fmt = priv->variant->modem_dai_fmt;
628
629 cpu = of_get_child_by_name(dev->of_node, "cpu");
630 if (!cpu)
631 return -EINVAL;
632
633 codec = of_get_child_by_name(dev->of_node, "codec");
634 if (!codec)
635 return -EINVAL;
636
637 for_each_card_prelinks(card, i, dai_link) {
638 dai_link->codecs->of_node = of_parse_phandle(codec,
639 "sound-dai", 0);
640 if (!dai_link->codecs->of_node) {
641 ret = -EINVAL;
642 goto out;
643 }
644 }
645
646 /* Set CPU and platform of_node for main DAI */
647 aries_dai[0].cpus->of_node = of_parse_phandle(cpu,
648 "sound-dai", 0);
649 if (!aries_dai[0].cpus->of_node) {
650 ret = -EINVAL;
651 goto out;
652 }
653
654 aries_dai[0].platforms->of_node = aries_dai[0].cpus->of_node;
655
656 /* Set CPU of_node for BT DAI */
657 aries_dai[2].cpus->of_node = of_parse_phandle(cpu,
658 "sound-dai", 1);
659 if (!aries_dai[2].cpus->of_node) {
660 ret = -EINVAL;
661 goto out;
662 }
663
664 ret = devm_snd_soc_register_component(dev, &aries_component,
665 aries_ext_dai, ARRAY_SIZE(aries_ext_dai));
666 if (ret < 0) {
667 dev_err(dev, "Failed to register component: %d\n", ret);
668 goto out;
669 }
670
671 ret = devm_snd_soc_register_card(dev, card);
672 if (ret)
673 dev_err(dev, "snd_soc_register_card() failed:%d\n", ret);
674
675 out:
676 of_node_put(cpu);
677 of_node_put(codec);
678
679 return ret;
680 }
681
682 static struct platform_driver aries_audio_driver = {
683 .driver = {
684 .name = "aries-audio-wm8994",
685 .of_match_table = of_match_ptr(samsung_wm8994_of_match),
686 .pm = &snd_soc_pm_ops,
687 },
688 .probe = aries_audio_probe,
689 };
690
691 module_platform_driver(aries_audio_driver);
692
693 MODULE_DESCRIPTION("ALSA SoC ARIES WM8994");
694 MODULE_LICENSE("GPL");
695 MODULE_ALIAS("platform:aries-audio-wm8994");
696