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