1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // Bells audio support
4 //
5 // Copyright 2012 Wolfson Microelectronics
6
7 #include <sound/soc.h>
8 #include <sound/soc-dapm.h>
9 #include <sound/jack.h>
10 #include <linux/module.h>
11
12 #include "../codecs/wm5102.h"
13 #include "../codecs/wm9081.h"
14
15 /* BCLK2 is fixed at this currently */
16 #define BCLK2_RATE (64 * 8000)
17
18 /*
19 * Expect a 24.576MHz crystal if one is fitted (the driver will function
20 * if this is not fitted).
21 */
22 #define MCLK_RATE 24576000
23
24 #define SYS_AUDIO_RATE 44100
25 #define SYS_MCLK_RATE (SYS_AUDIO_RATE * 512)
26
27 #define DAI_AP_DSP 0
28 #define DAI_DSP_CODEC 1
29 #define DAI_CODEC_CP 2
30 #define DAI_CODEC_SUB 3
31
32 struct bells_drvdata {
33 int sysclk_rate;
34 int asyncclk_rate;
35 };
36
37 static struct bells_drvdata wm2200_drvdata = {
38 .sysclk_rate = 22579200,
39 };
40
41 static struct bells_drvdata wm5102_drvdata = {
42 .sysclk_rate = 45158400,
43 .asyncclk_rate = 49152000,
44 };
45
46 static struct bells_drvdata wm5110_drvdata = {
47 .sysclk_rate = 135475200,
48 .asyncclk_rate = 147456000,
49 };
50
bells_set_bias_level(struct snd_soc_card * card,struct snd_soc_dapm_context * dapm,enum snd_soc_bias_level level)51 static int bells_set_bias_level(struct snd_soc_card *card,
52 struct snd_soc_dapm_context *dapm,
53 enum snd_soc_bias_level level)
54 {
55 struct snd_soc_pcm_runtime *rtd;
56 struct snd_soc_dai *codec_dai;
57 struct snd_soc_component *component;
58 struct bells_drvdata *bells = card->drvdata;
59 int ret;
60
61 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_DSP_CODEC]);
62 codec_dai = snd_soc_rtd_to_codec(rtd, 0);
63 component = codec_dai->component;
64
65 if (dapm->dev != codec_dai->dev)
66 return 0;
67
68 switch (level) {
69 case SND_SOC_BIAS_PREPARE:
70 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
71 break;
72
73 ret = snd_soc_component_set_pll(component, WM5102_FLL1,
74 ARIZONA_FLL_SRC_MCLK1,
75 MCLK_RATE,
76 bells->sysclk_rate);
77 if (ret < 0)
78 pr_err("Failed to start FLL: %d\n", ret);
79
80 if (bells->asyncclk_rate) {
81 ret = snd_soc_component_set_pll(component, WM5102_FLL2,
82 ARIZONA_FLL_SRC_AIF2BCLK,
83 BCLK2_RATE,
84 bells->asyncclk_rate);
85 if (ret < 0)
86 pr_err("Failed to start FLL: %d\n", ret);
87 }
88 break;
89
90 default:
91 break;
92 }
93
94 return 0;
95 }
96
bells_set_bias_level_post(struct snd_soc_card * card,struct snd_soc_dapm_context * dapm,enum snd_soc_bias_level level)97 static int bells_set_bias_level_post(struct snd_soc_card *card,
98 struct snd_soc_dapm_context *dapm,
99 enum snd_soc_bias_level level)
100 {
101 struct snd_soc_pcm_runtime *rtd;
102 struct snd_soc_dai *codec_dai;
103 struct snd_soc_component *component;
104 struct bells_drvdata *bells = card->drvdata;
105 int ret;
106
107 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_DSP_CODEC]);
108 codec_dai = snd_soc_rtd_to_codec(rtd, 0);
109 component = codec_dai->component;
110
111 if (dapm->dev != codec_dai->dev)
112 return 0;
113
114 switch (level) {
115 case SND_SOC_BIAS_STANDBY:
116 ret = snd_soc_component_set_pll(component, WM5102_FLL1, 0, 0, 0);
117 if (ret < 0) {
118 pr_err("Failed to stop FLL: %d\n", ret);
119 return ret;
120 }
121
122 if (bells->asyncclk_rate) {
123 ret = snd_soc_component_set_pll(component, WM5102_FLL2,
124 0, 0, 0);
125 if (ret < 0) {
126 pr_err("Failed to stop FLL: %d\n", ret);
127 return ret;
128 }
129 }
130 break;
131
132 default:
133 break;
134 }
135
136 dapm->bias_level = level;
137
138 return 0;
139 }
140
bells_late_probe(struct snd_soc_card * card)141 static int bells_late_probe(struct snd_soc_card *card)
142 {
143 struct bells_drvdata *bells = card->drvdata;
144 struct snd_soc_pcm_runtime *rtd;
145 struct snd_soc_component *wm0010;
146 struct snd_soc_component *component;
147 struct snd_soc_dai *aif1_dai;
148 struct snd_soc_dai *aif2_dai;
149 struct snd_soc_dai *aif3_dai;
150 struct snd_soc_dai *wm9081_dai;
151 int ret;
152
153 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_AP_DSP]);
154 wm0010 = snd_soc_rtd_to_codec(rtd, 0)->component;
155
156 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_DSP_CODEC]);
157 component = snd_soc_rtd_to_codec(rtd, 0)->component;
158 aif1_dai = snd_soc_rtd_to_codec(rtd, 0);
159
160 ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_SYSCLK,
161 ARIZONA_CLK_SRC_FLL1,
162 bells->sysclk_rate,
163 SND_SOC_CLOCK_IN);
164 if (ret != 0) {
165 dev_err(component->dev, "Failed to set SYSCLK: %d\n", ret);
166 return ret;
167 }
168
169 ret = snd_soc_component_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
170 if (ret != 0) {
171 dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
172 return ret;
173 }
174
175 ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
176 if (ret != 0)
177 dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
178
179 ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_OPCLK, 0,
180 SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
181 if (ret != 0)
182 dev_err(component->dev, "Failed to set OPCLK: %d\n", ret);
183
184 if (card->num_rtd == DAI_CODEC_CP)
185 return 0;
186
187 ret = snd_soc_component_set_sysclk(component, ARIZONA_CLK_ASYNCCLK,
188 ARIZONA_CLK_SRC_FLL2,
189 bells->asyncclk_rate,
190 SND_SOC_CLOCK_IN);
191 if (ret != 0) {
192 dev_err(component->dev, "Failed to set ASYNCCLK: %d\n", ret);
193 return ret;
194 }
195
196 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_CODEC_CP]);
197 aif2_dai = snd_soc_rtd_to_cpu(rtd, 0);
198
199 ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
200 if (ret != 0) {
201 dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
202 return ret;
203 }
204
205 if (card->num_rtd == DAI_CODEC_SUB)
206 return 0;
207
208 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_CODEC_SUB]);
209 aif3_dai = snd_soc_rtd_to_cpu(rtd, 0);
210 wm9081_dai = snd_soc_rtd_to_codec(rtd, 0);
211
212 ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
213 if (ret != 0) {
214 dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
215 return ret;
216 }
217
218 ret = snd_soc_component_set_sysclk(wm9081_dai->component, WM9081_SYSCLK_MCLK,
219 0, SYS_MCLK_RATE, 0);
220 if (ret != 0) {
221 dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
222 return ret;
223 }
224
225 return 0;
226 }
227
228 static const struct snd_soc_pcm_stream baseband_params = {
229 .formats = SNDRV_PCM_FMTBIT_S32_LE,
230 .rate_min = 8000,
231 .rate_max = 8000,
232 .channels_min = 2,
233 .channels_max = 2,
234 };
235
236 static const struct snd_soc_pcm_stream sub_params = {
237 .formats = SNDRV_PCM_FMTBIT_S32_LE,
238 .rate_min = SYS_AUDIO_RATE,
239 .rate_max = SYS_AUDIO_RATE,
240 .channels_min = 2,
241 .channels_max = 2,
242 };
243
244 SND_SOC_DAILINK_DEFS(wm2200_cpu_dsp,
245 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
246 DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
247 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
248
249 SND_SOC_DAILINK_DEFS(wm2200_dsp_codec,
250 DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
251 DAILINK_COMP_ARRAY(COMP_CODEC("wm2200.1-003a", "wm2200")));
252
253 static struct snd_soc_dai_link bells_dai_wm2200[] = {
254 {
255 .name = "CPU-DSP",
256 .stream_name = "CPU-DSP",
257 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
258 | SND_SOC_DAIFMT_CBP_CFP,
259 SND_SOC_DAILINK_REG(wm2200_cpu_dsp),
260 },
261 {
262 .name = "DSP-CODEC",
263 .stream_name = "DSP-CODEC",
264 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
265 | SND_SOC_DAIFMT_CBP_CFP,
266 .c2c_params = &sub_params,
267 .num_c2c_params = 1,
268 .ignore_suspend = 1,
269 SND_SOC_DAILINK_REG(wm2200_dsp_codec),
270 },
271 };
272
273 SND_SOC_DAILINK_DEFS(wm5102_cpu_dsp,
274 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
275 DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
276 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
277
278 SND_SOC_DAILINK_DEFS(wm5102_dsp_codec,
279 DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
280 DAILINK_COMP_ARRAY(COMP_CODEC("wm5102-codec", "wm5102-aif1")));
281
282 SND_SOC_DAILINK_DEFS(wm5102_baseband,
283 DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif2")),
284 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
285
286 SND_SOC_DAILINK_DEFS(wm5102_sub,
287 DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif3")),
288 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
289
290 static struct snd_soc_dai_link bells_dai_wm5102[] = {
291 {
292 .name = "CPU-DSP",
293 .stream_name = "CPU-DSP",
294 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
295 | SND_SOC_DAIFMT_CBP_CFP,
296 SND_SOC_DAILINK_REG(wm5102_cpu_dsp),
297 },
298 {
299 .name = "DSP-CODEC",
300 .stream_name = "DSP-CODEC",
301 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
302 | SND_SOC_DAIFMT_CBP_CFP,
303 .c2c_params = &sub_params,
304 .num_c2c_params = 1,
305 .ignore_suspend = 1,
306 SND_SOC_DAILINK_REG(wm5102_dsp_codec),
307 },
308 {
309 .name = "Baseband",
310 .stream_name = "Baseband",
311 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
312 | SND_SOC_DAIFMT_CBP_CFP,
313 .ignore_suspend = 1,
314 .c2c_params = &baseband_params,
315 .num_c2c_params = 1,
316 SND_SOC_DAILINK_REG(wm5102_baseband),
317 },
318 {
319 .name = "Sub",
320 .stream_name = "Sub",
321 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
322 | SND_SOC_DAIFMT_CBC_CFC,
323 .ignore_suspend = 1,
324 .c2c_params = &sub_params,
325 .num_c2c_params = 1,
326 SND_SOC_DAILINK_REG(wm5102_sub),
327 },
328 };
329
330 SND_SOC_DAILINK_DEFS(wm5110_cpu_dsp,
331 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
332 DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
333 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
334
335 SND_SOC_DAILINK_DEFS(wm5110_dsp_codec,
336 DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
337 DAILINK_COMP_ARRAY(COMP_CODEC("wm5110-codec", "wm5110-aif1")));
338
339 SND_SOC_DAILINK_DEFS(wm5110_baseband,
340 DAILINK_COMP_ARRAY(COMP_CPU("wm5110-aif2")),
341 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
342
343
344 SND_SOC_DAILINK_DEFS(wm5110_sub,
345 DAILINK_COMP_ARRAY(COMP_CPU("wm5110-aif3")),
346 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
347
348 static struct snd_soc_dai_link bells_dai_wm5110[] = {
349 {
350 .name = "CPU-DSP",
351 .stream_name = "CPU-DSP",
352 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
353 | SND_SOC_DAIFMT_CBP_CFP,
354 SND_SOC_DAILINK_REG(wm5110_cpu_dsp),
355 },
356 {
357 .name = "DSP-CODEC",
358 .stream_name = "DSP-CODEC",
359 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
360 | SND_SOC_DAIFMT_CBP_CFP,
361 .c2c_params = &sub_params,
362 .num_c2c_params = 1,
363 .ignore_suspend = 1,
364 SND_SOC_DAILINK_REG(wm5110_dsp_codec),
365 },
366 {
367 .name = "Baseband",
368 .stream_name = "Baseband",
369 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
370 | SND_SOC_DAIFMT_CBP_CFP,
371 .ignore_suspend = 1,
372 .c2c_params = &baseband_params,
373 .num_c2c_params = 1,
374 SND_SOC_DAILINK_REG(wm5110_baseband),
375 },
376 {
377 .name = "Sub",
378 .stream_name = "Sub",
379 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
380 | SND_SOC_DAIFMT_CBC_CFC,
381 .ignore_suspend = 1,
382 .c2c_params = &sub_params,
383 .num_c2c_params = 1,
384 SND_SOC_DAILINK_REG(wm5110_sub),
385 },
386 };
387
388 static struct snd_soc_codec_conf bells_codec_conf[] = {
389 {
390 .dlc = COMP_CODEC_CONF("wm9081.1-006c"),
391 .name_prefix = "Sub",
392 },
393 };
394
395 static const struct snd_soc_dapm_widget bells_widgets[] = {
396 SND_SOC_DAPM_MIC("DMIC", NULL),
397 };
398
399 static const struct snd_soc_dapm_route bells_routes[] = {
400 { "Sub CLK_SYS", NULL, "OPCLK" },
401 { "CLKIN", NULL, "OPCLK" },
402
403 { "DMIC", NULL, "MICBIAS2" },
404 { "IN2L", NULL, "DMIC" },
405 { "IN2R", NULL, "DMIC" },
406 };
407
408 static struct snd_soc_card bells_cards[] = {
409 {
410 .name = "Bells WM2200",
411 .owner = THIS_MODULE,
412 .dai_link = bells_dai_wm2200,
413 .num_links = ARRAY_SIZE(bells_dai_wm2200),
414 .codec_conf = bells_codec_conf,
415 .num_configs = ARRAY_SIZE(bells_codec_conf),
416
417 .late_probe = bells_late_probe,
418
419 .dapm_widgets = bells_widgets,
420 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
421 .dapm_routes = bells_routes,
422 .num_dapm_routes = ARRAY_SIZE(bells_routes),
423
424 .set_bias_level = bells_set_bias_level,
425 .set_bias_level_post = bells_set_bias_level_post,
426
427 .drvdata = &wm2200_drvdata,
428 },
429 {
430 .name = "Bells WM5102",
431 .owner = THIS_MODULE,
432 .dai_link = bells_dai_wm5102,
433 .num_links = ARRAY_SIZE(bells_dai_wm5102),
434 .codec_conf = bells_codec_conf,
435 .num_configs = ARRAY_SIZE(bells_codec_conf),
436
437 .late_probe = bells_late_probe,
438
439 .dapm_widgets = bells_widgets,
440 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
441 .dapm_routes = bells_routes,
442 .num_dapm_routes = ARRAY_SIZE(bells_routes),
443
444 .set_bias_level = bells_set_bias_level,
445 .set_bias_level_post = bells_set_bias_level_post,
446
447 .drvdata = &wm5102_drvdata,
448 },
449 {
450 .name = "Bells WM5110",
451 .owner = THIS_MODULE,
452 .dai_link = bells_dai_wm5110,
453 .num_links = ARRAY_SIZE(bells_dai_wm5110),
454 .codec_conf = bells_codec_conf,
455 .num_configs = ARRAY_SIZE(bells_codec_conf),
456
457 .late_probe = bells_late_probe,
458
459 .dapm_widgets = bells_widgets,
460 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
461 .dapm_routes = bells_routes,
462 .num_dapm_routes = ARRAY_SIZE(bells_routes),
463
464 .set_bias_level = bells_set_bias_level,
465 .set_bias_level_post = bells_set_bias_level_post,
466
467 .drvdata = &wm5110_drvdata,
468 },
469 };
470
bells_probe(struct platform_device * pdev)471 static int bells_probe(struct platform_device *pdev)
472 {
473 int ret;
474
475 bells_cards[pdev->id].dev = &pdev->dev;
476
477 ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
478 if (ret)
479 dev_err(&pdev->dev,
480 "snd_soc_register_card(%s) failed: %d\n",
481 bells_cards[pdev->id].name, ret);
482
483 return ret;
484 }
485
486 static struct platform_driver bells_driver = {
487 .driver = {
488 .name = "bells",
489 .pm = &snd_soc_pm_ops,
490 },
491 .probe = bells_probe,
492 };
493
494 module_platform_driver(bells_driver);
495
496 MODULE_DESCRIPTION("Bells audio support");
497 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
498 MODULE_LICENSE("GPL");
499 MODULE_ALIAS("platform:bells");
500