1// SPDX-License-Identifier: GPL-2.0+
2#include <linux/extcon.h>
3#include <linux/gpio/consumer.h>
4#include <linux/iio/consumer.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/regulator/consumer.h>
10#include <sound/jack.h>
11#include <sound/pcm_params.h>
12#include <sound/soc.h>
13
14#include "i2s.h"
15#include "../codecs/wm8994.h"
16
17#define ARIES_MCLK1_FREQ 24000000
18
19struct aries_wm8994_variant {
20 unsigned int modem_dai_fmt;
21 bool has_fm_radio;
22};
23
24struct aries_wm8994_data {
25 struct extcon_dev *usb_extcon;
26 struct regulator *reg_main_micbias;
27 struct regulator *reg_headset_micbias;
28 struct gpio_desc *gpio_headset_detect;
29 struct gpio_desc *gpio_headset_key;
30 struct gpio_desc *gpio_earpath_sel;
31 struct iio_channel *adc;
32 const struct aries_wm8994_variant *variant;
33};
34
35/* USB dock */
36static struct snd_soc_jack aries_dock;
37
38static struct snd_soc_jack_pin dock_pins[] = {
39 {
40 .pin = "LINE",
41 .mask = SND_JACK_LINEOUT,
42 },
43};
44
45static int aries_extcon_notifier(struct notifier_block *this,
46 unsigned long connected, void *_cmd)
47{
48 if (connected)
49 snd_soc_jack_report(jack: &aries_dock, status: SND_JACK_LINEOUT,
50 mask: SND_JACK_LINEOUT);
51 else
52 snd_soc_jack_report(jack: &aries_dock, status: 0, mask: SND_JACK_LINEOUT);
53
54 return NOTIFY_DONE;
55}
56
57static struct notifier_block aries_extcon_notifier_block = {
58 .notifier_call = aries_extcon_notifier,
59};
60
61/* Headset jack */
62static struct snd_soc_jack aries_headset;
63
64static struct snd_soc_jack_pin jack_pins[] = {
65 {
66 .pin = "HP",
67 .mask = SND_JACK_HEADPHONE,
68 }, {
69 .pin = "Headset Mic",
70 .mask = SND_JACK_MICROPHONE,
71 },
72};
73
74static struct snd_soc_jack_zone headset_zones[] = {
75 {
76 .min_mv = 0,
77 .max_mv = 241,
78 .jack_type = SND_JACK_HEADPHONE,
79 }, {
80 .min_mv = 242,
81 .max_mv = 2980,
82 .jack_type = SND_JACK_HEADSET,
83 }, {
84 .min_mv = 2981,
85 .max_mv = UINT_MAX,
86 .jack_type = SND_JACK_HEADPHONE,
87 },
88};
89
90static irqreturn_t headset_det_irq_thread(int irq, void *data)
91{
92 struct aries_wm8994_data *priv = (struct aries_wm8994_data *) data;
93 int ret = 0;
94 int time_left_ms = 300;
95 int adc;
96
97 while (time_left_ms > 0) {
98 if (!gpiod_get_value(desc: priv->gpio_headset_detect)) {
99 snd_soc_jack_report(jack: &aries_headset, status: 0,
100 mask: SND_JACK_HEADSET);
101 gpiod_set_value(desc: priv->gpio_earpath_sel, value: 0);
102 return IRQ_HANDLED;
103 }
104 msleep(msecs: 20);
105 time_left_ms -= 20;
106 }
107
108 /* Temporarily enable micbias and earpath selector */
109 ret = regulator_enable(regulator: priv->reg_headset_micbias);
110 if (ret)
111 pr_err("%s failed to enable micbias: %d", __func__, ret);
112
113 gpiod_set_value(desc: priv->gpio_earpath_sel, value: 1);
114
115 ret = iio_read_channel_processed(chan: priv->adc, val: &adc);
116 if (ret < 0) {
117 /* failed to read ADC, so assume headphone */
118 pr_err("%s failed to read ADC, assuming headphones", __func__);
119 snd_soc_jack_report(jack: &aries_headset, status: SND_JACK_HEADPHONE,
120 mask: SND_JACK_HEADSET);
121 } else {
122 snd_soc_jack_report(jack: &aries_headset,
123 status: snd_soc_jack_get_type(jack: &aries_headset, micbias_voltage: adc),
124 mask: SND_JACK_HEADSET);
125 }
126
127 ret = regulator_disable(regulator: priv->reg_headset_micbias);
128 if (ret)
129 pr_err("%s failed disable micbias: %d", __func__, ret);
130
131 /* Disable earpath selector when no mic connected */
132 if (!(aries_headset.status & SND_JACK_MICROPHONE))
133 gpiod_set_value(desc: priv->gpio_earpath_sel, value: 0);
134
135 return IRQ_HANDLED;
136}
137
138static int headset_button_check(void *data)
139{
140 struct aries_wm8994_data *priv = (struct aries_wm8994_data *) data;
141
142 /* Filter out keypresses when 4 pole jack not detected */
143 if (gpiod_get_value_cansleep(desc: priv->gpio_headset_key) &&
144 aries_headset.status & SND_JACK_MICROPHONE)
145 return SND_JACK_BTN_0;
146
147 return 0;
148}
149
150static struct snd_soc_jack_gpio headset_button_gpio[] = {
151 {
152 .name = "Media Button",
153 .report = SND_JACK_BTN_0,
154 .debounce_time = 30,
155 .jack_status_check = headset_button_check,
156 },
157};
158
159static int aries_spk_cfg(struct snd_soc_dapm_widget *w,
160 struct snd_kcontrol *kcontrol, int event)
161{
162 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm: w->dapm);
163 struct snd_soc_pcm_runtime *rtd;
164 struct snd_soc_component *component;
165 int ret = 0;
166
167 rtd = snd_soc_get_pcm_runtime(card, dai_link: &card->dai_link[0]);
168 component = snd_soc_rtd_to_codec(rtd, 0)->component;
169
170 /**
171 * We have an odd setup - the SPKMODE pin is pulled up so
172 * we only have access to the left side SPK configs,
173 * but SPKOUTR isn't bridged so when playing back in
174 * stereo, we only get the left hand channel. The only
175 * option we're left with is to force the AIF into mono
176 * mode.
177 */
178 switch (event) {
179 case SND_SOC_DAPM_POST_PMU:
180 ret = snd_soc_component_update_bits(component,
181 WM8994_AIF1_DAC1_FILTERS_1,
182 WM8994_AIF1DAC1_MONO, WM8994_AIF1DAC1_MONO);
183 break;
184 case SND_SOC_DAPM_PRE_PMD:
185 ret = snd_soc_component_update_bits(component,
186 WM8994_AIF1_DAC1_FILTERS_1,
187 WM8994_AIF1DAC1_MONO, val: 0);
188 break;
189 }
190
191 return ret;
192}
193
194static int aries_main_bias(struct snd_soc_dapm_widget *w,
195 struct snd_kcontrol *kcontrol, int event)
196{
197 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm: w->dapm);
198 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
199 int ret = 0;
200
201 switch (event) {
202 case SND_SOC_DAPM_PRE_PMU:
203 ret = regulator_enable(regulator: priv->reg_main_micbias);
204 break;
205 case SND_SOC_DAPM_POST_PMD:
206 ret = regulator_disable(regulator: priv->reg_main_micbias);
207 break;
208 }
209
210 return ret;
211}
212
213static int aries_headset_bias(struct snd_soc_dapm_widget *w,
214 struct snd_kcontrol *kcontrol, int event)
215{
216 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm: w->dapm);
217 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
218 int ret = 0;
219
220 switch (event) {
221 case SND_SOC_DAPM_PRE_PMU:
222 ret = regulator_enable(regulator: priv->reg_headset_micbias);
223 break;
224 case SND_SOC_DAPM_POST_PMD:
225 ret = regulator_disable(regulator: priv->reg_headset_micbias);
226 break;
227 }
228
229 return ret;
230}
231
232static const struct snd_kcontrol_new aries_controls[] = {
233 SOC_DAPM_PIN_SWITCH("Modem In"),
234 SOC_DAPM_PIN_SWITCH("Modem Out"),
235};
236
237static const struct snd_soc_dapm_widget aries_dapm_widgets[] = {
238 SND_SOC_DAPM_HP("HP", NULL),
239
240 SND_SOC_DAPM_SPK("SPK", aries_spk_cfg),
241 SND_SOC_DAPM_SPK("RCV", NULL),
242
243 SND_SOC_DAPM_LINE("LINE", NULL),
244
245 SND_SOC_DAPM_MIC("Main Mic", aries_main_bias),
246 SND_SOC_DAPM_MIC("Headset Mic", aries_headset_bias),
247
248 SND_SOC_DAPM_MIC("Bluetooth Mic", NULL),
249 SND_SOC_DAPM_SPK("Bluetooth SPK", NULL),
250
251 SND_SOC_DAPM_LINE("Modem In", NULL),
252 SND_SOC_DAPM_LINE("Modem Out", NULL),
253
254 /* This must be last as it is conditionally not used */
255 SND_SOC_DAPM_LINE("FM In", NULL),
256};
257
258static int aries_hw_params(struct snd_pcm_substream *substream,
259 struct snd_pcm_hw_params *params)
260{
261 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
262 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
263 unsigned int pll_out;
264 int ret;
265
266 /* AIF1CLK should be >=3MHz for optimal performance */
267 if (params_width(p: params) == 24)
268 pll_out = params_rate(p: params) * 384;
269 else if (params_rate(p: params) == 8000 || params_rate(p: params) == 11025)
270 pll_out = params_rate(p: params) * 512;
271 else
272 pll_out = params_rate(p: params) * 256;
273
274 ret = snd_soc_dai_set_pll(dai: codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
275 ARIES_MCLK1_FREQ, freq_out: pll_out);
276 if (ret < 0)
277 return ret;
278
279 ret = snd_soc_dai_set_sysclk(dai: codec_dai, WM8994_SYSCLK_FLL1,
280 freq: pll_out, SND_SOC_CLOCK_IN);
281 if (ret < 0)
282 return ret;
283
284 return 0;
285}
286
287static int aries_hw_free(struct snd_pcm_substream *substream)
288{
289 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
290 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
291 int ret;
292
293 /* Switch sysclk to MCLK1 */
294 ret = snd_soc_dai_set_sysclk(dai: codec_dai, WM8994_SYSCLK_MCLK1,
295 ARIES_MCLK1_FREQ, SND_SOC_CLOCK_IN);
296 if (ret < 0)
297 return ret;
298
299 /* Stop PLL */
300 ret = snd_soc_dai_set_pll(dai: codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
301 ARIES_MCLK1_FREQ, freq_out: 0);
302 if (ret < 0)
303 return ret;
304
305 return 0;
306}
307
308/*
309 * Main DAI operations
310 */
311static const struct snd_soc_ops aries_ops = {
312 .hw_params = aries_hw_params,
313 .hw_free = aries_hw_free,
314};
315
316static int aries_baseband_init(struct snd_soc_pcm_runtime *rtd)
317{
318 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
319 unsigned int pll_out;
320 int ret;
321
322 pll_out = 8000 * 512;
323
324 /* Set the codec FLL */
325 ret = snd_soc_dai_set_pll(dai: codec_dai, WM8994_FLL2, WM8994_FLL_SRC_MCLK1,
326 ARIES_MCLK1_FREQ, freq_out: pll_out);
327 if (ret < 0)
328 return ret;
329
330 /* Set the codec system clock */
331 ret = snd_soc_dai_set_sysclk(dai: codec_dai, WM8994_SYSCLK_FLL2,
332 freq: pll_out, SND_SOC_CLOCK_IN);
333 if (ret < 0)
334 return ret;
335
336 return 0;
337}
338
339static int aries_late_probe(struct snd_soc_card *card)
340{
341 struct aries_wm8994_data *priv = snd_soc_card_get_drvdata(card);
342 int ret, irq;
343
344 ret = snd_soc_card_jack_new_pins(card, id: "Dock", type: SND_JACK_LINEOUT,
345 jack: &aries_dock, pins: dock_pins, ARRAY_SIZE(dock_pins));
346 if (ret)
347 return ret;
348
349 ret = devm_extcon_register_notifier(dev: card->dev,
350 edev: priv->usb_extcon, EXTCON_JACK_LINE_OUT,
351 nb: &aries_extcon_notifier_block);
352 if (ret)
353 return ret;
354
355 if (extcon_get_state(edev: priv->usb_extcon,
356 EXTCON_JACK_LINE_OUT) > 0)
357 snd_soc_jack_report(jack: &aries_dock, status: SND_JACK_LINEOUT,
358 mask: SND_JACK_LINEOUT);
359 else
360 snd_soc_jack_report(jack: &aries_dock, status: 0, mask: SND_JACK_LINEOUT);
361
362 ret = snd_soc_card_jack_new_pins(card, id: "Headset",
363 type: SND_JACK_HEADSET | SND_JACK_BTN_0,
364 jack: &aries_headset,
365 pins: jack_pins, ARRAY_SIZE(jack_pins));
366 if (ret)
367 return ret;
368
369 ret = snd_soc_jack_add_zones(jack: &aries_headset, ARRAY_SIZE(headset_zones),
370 zones: headset_zones);
371 if (ret)
372 return ret;
373
374 irq = gpiod_to_irq(desc: priv->gpio_headset_detect);
375 if (irq < 0) {
376 dev_err(card->dev, "Failed to map headset detect gpio to irq");
377 return -EINVAL;
378 }
379
380 ret = devm_request_threaded_irq(dev: card->dev, irq, NULL,
381 thread_fn: headset_det_irq_thread,
382 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
383 IRQF_ONESHOT, devname: "headset_detect", dev_id: priv);
384 if (ret) {
385 dev_err(card->dev, "Failed to request headset detect irq");
386 return ret;
387 }
388
389 headset_button_gpio[0].data = priv;
390 headset_button_gpio[0].desc = priv->gpio_headset_key;
391
392 snd_jack_set_key(jack: aries_headset.jack, type: SND_JACK_BTN_0, KEY_MEDIA);
393
394 return snd_soc_jack_add_gpios(jack: &aries_headset,
395 ARRAY_SIZE(headset_button_gpio), gpios: headset_button_gpio);
396}
397
398static const struct snd_soc_pcm_stream baseband_params = {
399 .formats = SNDRV_PCM_FMTBIT_S16_LE,
400 .rate_min = 8000,
401 .rate_max = 8000,
402 .channels_min = 1,
403 .channels_max = 1,
404};
405
406static const struct snd_soc_pcm_stream bluetooth_params = {
407 .formats = SNDRV_PCM_FMTBIT_S16_LE,
408 .rate_min = 8000,
409 .rate_max = 8000,
410 .channels_min = 1,
411 .channels_max = 2,
412};
413
414static const struct snd_soc_dapm_widget aries_modem_widgets[] = {
415 SND_SOC_DAPM_INPUT("Modem RX"),
416 SND_SOC_DAPM_OUTPUT("Modem TX"),
417};
418
419static const struct snd_soc_dapm_route aries_modem_routes[] = {
420 { "Modem Capture", NULL, "Modem RX" },
421 { "Modem TX", NULL, "Modem Playback" },
422};
423
424static const struct snd_soc_component_driver aries_component = {
425 .name = "aries-audio",
426 .dapm_widgets = aries_modem_widgets,
427 .num_dapm_widgets = ARRAY_SIZE(aries_modem_widgets),
428 .dapm_routes = aries_modem_routes,
429 .num_dapm_routes = ARRAY_SIZE(aries_modem_routes),
430 .idle_bias_on = 1,
431 .use_pmdown_time = 1,
432 .endianness = 1,
433};
434
435static struct snd_soc_dai_driver aries_ext_dai[] = {
436 {
437 .name = "Voice call",
438 .playback = {
439 .stream_name = "Modem Playback",
440 .channels_min = 1,
441 .channels_max = 1,
442 .rate_min = 8000,
443 .rate_max = 8000,
444 .rates = SNDRV_PCM_RATE_8000,
445 .formats = SNDRV_PCM_FMTBIT_S16_LE,
446 },
447 .capture = {
448 .stream_name = "Modem Capture",
449 .channels_min = 1,
450 .channels_max = 1,
451 .rate_min = 8000,
452 .rate_max = 8000,
453 .rates = SNDRV_PCM_RATE_8000,
454 .formats = SNDRV_PCM_FMTBIT_S16_LE,
455 },
456 },
457};
458
459SND_SOC_DAILINK_DEFS(aif1,
460 DAILINK_COMP_ARRAY(COMP_CPU(SAMSUNG_I2S_DAI)),
461 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")),
462 DAILINK_COMP_ARRAY(COMP_EMPTY()));
463
464SND_SOC_DAILINK_DEFS(baseband,
465 DAILINK_COMP_ARRAY(COMP_CPU("Voice call")),
466 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif2")));
467
468SND_SOC_DAILINK_DEFS(bluetooth,
469 DAILINK_COMP_ARRAY(COMP_CPU("bt-sco-pcm")),
470 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif3")));
471
472static struct snd_soc_dai_link aries_dai[] = {
473 {
474 .name = "WM8994 AIF1",
475 .stream_name = "HiFi",
476 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
477 SND_SOC_DAIFMT_CBP_CFP,
478 .ops = &aries_ops,
479 SND_SOC_DAILINK_REG(aif1),
480 },
481 {
482 .name = "WM8994 AIF2",
483 .stream_name = "Baseband",
484 .init = &aries_baseband_init,
485 .c2c_params = &baseband_params,
486 .num_c2c_params = 1,
487 .ignore_suspend = 1,
488 SND_SOC_DAILINK_REG(baseband),
489 },
490 {
491 .name = "WM8994 AIF3",
492 .stream_name = "Bluetooth",
493 .c2c_params = &bluetooth_params,
494 .num_c2c_params = 1,
495 .ignore_suspend = 1,
496 SND_SOC_DAILINK_REG(bluetooth),
497 },
498};
499
500static struct snd_soc_card aries_card = {
501 .name = "ARIES",
502 .owner = THIS_MODULE,
503 .dai_link = aries_dai,
504 .num_links = ARRAY_SIZE(aries_dai),
505 .controls = aries_controls,
506 .num_controls = ARRAY_SIZE(aries_controls),
507 .dapm_widgets = aries_dapm_widgets,
508 .num_dapm_widgets = ARRAY_SIZE(aries_dapm_widgets),
509 .late_probe = aries_late_probe,
510};
511
512static const struct aries_wm8994_variant fascinate4g_variant = {
513 .modem_dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBC_CFC
514 | SND_SOC_DAIFMT_IB_NF,
515 .has_fm_radio = false,
516};
517
518static const struct aries_wm8994_variant aries_variant = {
519 .modem_dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBP_CFP
520 | SND_SOC_DAIFMT_IB_NF,
521 .has_fm_radio = true,
522};
523
524static const struct of_device_id samsung_wm8994_of_match[] = {
525 {
526 .compatible = "samsung,fascinate4g-wm8994",
527 .data = &fascinate4g_variant,
528 },
529 {
530 .compatible = "samsung,aries-wm8994",
531 .data = &aries_variant,
532 },
533 { /* sentinel */ },
534};
535MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
536
537static int aries_audio_probe(struct platform_device *pdev)
538{
539 struct device_node *np = pdev->dev.of_node;
540 struct device_node *cpu, *codec, *extcon_np;
541 struct device *dev = &pdev->dev;
542 struct snd_soc_card *card = &aries_card;
543 struct aries_wm8994_data *priv;
544 struct snd_soc_dai_link *dai_link;
545 const struct of_device_id *match;
546 enum iio_chan_type channel_type;
547 int ret, i;
548
549 if (!np)
550 return -EINVAL;
551
552 card->dev = dev;
553
554 priv = devm_kzalloc(dev, size: sizeof(*priv), GFP_KERNEL);
555 if (!priv)
556 return -ENOMEM;
557
558 snd_soc_card_set_drvdata(card, data: priv);
559
560 match = of_match_node(matches: samsung_wm8994_of_match, node: 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, id: "main-micbias");
568 if (IS_ERR(ptr: priv->reg_main_micbias)) {
569 dev_err(dev, "Failed to get main micbias regulator\n");
570 return PTR_ERR(ptr: priv->reg_main_micbias);
571 }
572
573 priv->reg_headset_micbias = devm_regulator_get(dev, id: "headset-micbias");
574 if (IS_ERR(ptr: priv->reg_headset_micbias)) {
575 dev_err(dev, "Failed to get headset micbias regulator\n");
576 return PTR_ERR(ptr: priv->reg_headset_micbias);
577 }
578
579 priv->gpio_earpath_sel = devm_gpiod_get(dev, con_id: "earpath-sel",
580 flags: GPIOD_OUT_LOW);
581 if (IS_ERR(ptr: priv->gpio_earpath_sel)) {
582 dev_err(dev, "Failed to get earpath selector gpio");
583 return PTR_ERR(ptr: priv->gpio_earpath_sel);
584 }
585
586 extcon_np = of_parse_phandle(np, phandle_name: "extcon", index: 0);
587 priv->usb_extcon = extcon_find_edev_by_node(node: extcon_np);
588 of_node_put(node: extcon_np);
589 if (IS_ERR(ptr: priv->usb_extcon))
590 return dev_err_probe(dev, err: PTR_ERR(ptr: priv->usb_extcon),
591 fmt: "Failed to get extcon device");
592
593 priv->adc = devm_iio_channel_get(dev, consumer_channel: "headset-detect");
594 if (IS_ERR(ptr: priv->adc))
595 return dev_err_probe(dev, err: PTR_ERR(ptr: priv->adc),
596 fmt: "Failed to get ADC channel");
597
598 ret = iio_get_channel_type(channel: priv->adc, type: &channel_type);
599 if (ret)
600 return dev_err_probe(dev, err: ret,
601 fmt: "Failed to get ADC channel type");
602 if (channel_type != IIO_VOLTAGE)
603 return -EINVAL;
604
605 priv->gpio_headset_key = devm_gpiod_get(dev, con_id: "headset-key",
606 flags: GPIOD_IN);
607 if (IS_ERR(ptr: priv->gpio_headset_key)) {
608 dev_err(dev, "Failed to get headset key gpio");
609 return PTR_ERR(ptr: priv->gpio_headset_key);
610 }
611
612 priv->gpio_headset_detect = devm_gpiod_get(dev,
613 con_id: "headset-detect", flags: GPIOD_IN);
614 if (IS_ERR(ptr: priv->gpio_headset_detect)) {
615 dev_err(dev, "Failed to get headset detect gpio");
616 return PTR_ERR(ptr: priv->gpio_headset_detect);
617 }
618
619 /* Update card-name if provided through DT, else use default name */
620 snd_soc_of_parse_card_name(card, propname: "model");
621
622 ret = snd_soc_of_parse_audio_routing(card, propname: "audio-routing");
623 if (ret < 0) {
624 /* Backwards compatible way */
625 ret = snd_soc_of_parse_audio_routing(card, propname: "samsung,audio-routing");
626 if (ret < 0) {
627 dev_err(dev, "Audio routing invalid/unspecified\n");
628 return ret;
629 }
630 }
631
632 aries_dai[1].dai_fmt = priv->variant->modem_dai_fmt;
633
634 cpu = of_get_child_by_name(node: dev->of_node, name: "cpu");
635 if (!cpu)
636 return -EINVAL;
637
638 codec = of_get_child_by_name(node: dev->of_node, name: "codec");
639 if (!codec) {
640 ret = -EINVAL;
641 goto out;
642 }
643
644 for_each_card_prelinks(card, i, dai_link) {
645 dai_link->codecs->of_node = of_parse_phandle(np: codec,
646 phandle_name: "sound-dai", index: 0);
647 if (!dai_link->codecs->of_node) {
648 ret = -EINVAL;
649 goto out;
650 }
651 }
652
653 /* Set CPU and platform of_node for main DAI */
654 aries_dai[0].cpus->of_node = of_parse_phandle(np: cpu,
655 phandle_name: "sound-dai", index: 0);
656 if (!aries_dai[0].cpus->of_node) {
657 ret = -EINVAL;
658 goto out;
659 }
660
661 aries_dai[0].platforms->of_node = aries_dai[0].cpus->of_node;
662
663 /* Set CPU of_node for BT DAI */
664 aries_dai[2].cpus->of_node = of_parse_phandle(np: cpu,
665 phandle_name: "sound-dai", index: 1);
666 if (!aries_dai[2].cpus->of_node) {
667 ret = -EINVAL;
668 goto out;
669 }
670
671 ret = devm_snd_soc_register_component(dev, component_driver: &aries_component,
672 dai_drv: aries_ext_dai, ARRAY_SIZE(aries_ext_dai));
673 if (ret < 0) {
674 dev_err(dev, "Failed to register component: %d\n", ret);
675 goto out;
676 }
677
678 ret = devm_snd_soc_register_card(dev, card);
679 if (ret)
680 dev_err(dev, "snd_soc_register_card() failed:%d\n", ret);
681
682out:
683 of_node_put(node: cpu);
684 of_node_put(node: codec);
685
686 return ret;
687}
688
689static struct platform_driver aries_audio_driver = {
690 .driver = {
691 .name = "aries-audio-wm8994",
692 .of_match_table = of_match_ptr(samsung_wm8994_of_match),
693 .pm = &snd_soc_pm_ops,
694 },
695 .probe = aries_audio_probe,
696};
697
698module_platform_driver(aries_audio_driver);
699
700MODULE_DESCRIPTION("ALSA SoC ARIES WM8994");
701MODULE_LICENSE("GPL");
702MODULE_ALIAS("platform:aries-audio-wm8994");
703

source code of linux/sound/soc/samsung/aries_wm8994.c