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Linux/sound/soc/amd/acp-da7219-max98357a.c

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  1 /*
  2  * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
  3  *
  4  * Copyright 2017 Advanced Micro Devices, Inc.
  5  *
  6  * Permission is hereby granted, free of charge, to any person obtaining a
  7  * copy of this software and associated documentation files (the "Software"),
  8  * to deal in the Software without restriction, including without limitation
  9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 10  * and/or sell copies of the Software, and to permit persons to whom the
 11  * Software is furnished to do so, subject to the following conditions:
 12  *
 13  * The above copyright notice and this permission notice shall be included in
 14  * all copies or substantial portions of the Software.
 15  *
 16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 22  * OTHER DEALINGS IN THE SOFTWARE.
 23  *
 24  */
 25 
 26 #include <sound/core.h>
 27 #include <sound/soc.h>
 28 #include <sound/pcm.h>
 29 #include <sound/pcm_params.h>
 30 #include <sound/soc-dapm.h>
 31 #include <sound/jack.h>
 32 #include <linux/clk.h>
 33 #include <linux/gpio.h>
 34 #include <linux/module.h>
 35 #include <linux/regulator/machine.h>
 36 #include <linux/regulator/driver.h>
 37 #include <linux/i2c.h>
 38 #include <linux/input.h>
 39 #include <linux/acpi.h>
 40 
 41 #include "acp.h"
 42 #include "../codecs/da7219.h"
 43 #include "../codecs/da7219-aad.h"
 44 
 45 #define CZ_PLAT_CLK 48000000
 46 #define DUAL_CHANNEL            2
 47 
 48 static struct snd_soc_jack cz_jack;
 49 static struct clk *da7219_dai_wclk;
 50 static struct clk *da7219_dai_bclk;
 51 extern bool bt_uart_enable;
 52 
 53 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
 54 {
 55         int ret;
 56         struct snd_soc_card *card = rtd->card;
 57         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 58         struct snd_soc_component *component = codec_dai->component;
 59 
 60         dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
 61 
 62         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
 63                                      CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
 64         if (ret < 0) {
 65                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
 66                 return ret;
 67         }
 68 
 69         ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
 70                                   CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
 71         if (ret < 0) {
 72                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 73                 return ret;
 74         }
 75 
 76         da7219_dai_wclk = clk_get(component->dev, "da7219-dai-wclk");
 77         da7219_dai_bclk = clk_get(component->dev, "da7219-dai-bclk");
 78 
 79         ret = snd_soc_card_jack_new(card, "Headset Jack",
 80                                 SND_JACK_HEADSET | SND_JACK_LINEOUT |
 81                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 82                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
 83                                 &cz_jack, NULL, 0);
 84         if (ret) {
 85                 dev_err(card->dev, "HP jack creation failed %d\n", ret);
 86                 return ret;
 87         }
 88 
 89         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 90         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 91         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 92         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
 93 
 94         da7219_aad_jack_det(component, &cz_jack);
 95 
 96         return 0;
 97 }
 98 
 99 static int da7219_clk_enable(struct snd_pcm_substream *substream,
100                              int wclk_rate, int bclk_rate)
101 {
102         int ret = 0;
103         struct snd_soc_pcm_runtime *rtd = substream->private_data;
104 
105         clk_set_rate(da7219_dai_wclk, wclk_rate);
106         clk_set_rate(da7219_dai_bclk, bclk_rate);
107         ret = clk_prepare_enable(da7219_dai_bclk);
108         if (ret < 0) {
109                 dev_err(rtd->dev, "can't enable master clock %d\n", ret);
110                 return ret;
111         }
112 
113         return ret;
114 }
115 
116 static void da7219_clk_disable(void)
117 {
118         clk_disable_unprepare(da7219_dai_bclk);
119 }
120 
121 static const unsigned int channels[] = {
122         DUAL_CHANNEL,
123 };
124 
125 static const unsigned int rates[] = {
126         48000,
127 };
128 
129 static const struct snd_pcm_hw_constraint_list constraints_rates = {
130         .count = ARRAY_SIZE(rates),
131         .list  = rates,
132         .mask = 0,
133 };
134 
135 static const struct snd_pcm_hw_constraint_list constraints_channels = {
136         .count = ARRAY_SIZE(channels),
137         .list = channels,
138         .mask = 0,
139 };
140 
141 static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
142 {
143         struct snd_pcm_runtime *runtime = substream->runtime;
144         struct snd_soc_pcm_runtime *rtd = substream->private_data;
145         struct snd_soc_card *card = rtd->card;
146         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
147 
148         /*
149          * On this platform for PCM device we support stereo
150          */
151 
152         runtime->hw.channels_max = DUAL_CHANNEL;
153         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
154                                    &constraints_channels);
155         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
156                                    &constraints_rates);
157 
158         machine->play_i2s_instance = I2S_SP_INSTANCE;
159         return 0;
160 }
161 
162 static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
163 {
164         struct snd_pcm_runtime *runtime = substream->runtime;
165         struct snd_soc_pcm_runtime *rtd = substream->private_data;
166         struct snd_soc_card *card = rtd->card;
167         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
168 
169         /*
170          * On this platform for PCM device we support stereo
171          */
172 
173         runtime->hw.channels_max = DUAL_CHANNEL;
174         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
175                                    &constraints_channels);
176         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
177                                    &constraints_rates);
178 
179         machine->cap_i2s_instance = I2S_SP_INSTANCE;
180         machine->capture_channel = CAP_CHANNEL1;
181         return 0;
182 }
183 
184 static int cz_max_startup(struct snd_pcm_substream *substream)
185 {
186         struct snd_pcm_runtime *runtime = substream->runtime;
187         struct snd_soc_pcm_runtime *rtd = substream->private_data;
188         struct snd_soc_card *card = rtd->card;
189         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
190 
191         /*
192          * On this platform for PCM device we support stereo
193          */
194 
195         runtime->hw.channels_max = DUAL_CHANNEL;
196         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
197                                    &constraints_channels);
198         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
199                                    &constraints_rates);
200 
201         machine->play_i2s_instance = I2S_BT_INSTANCE;
202         return 0;
203 }
204 
205 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
206 {
207         struct snd_pcm_runtime *runtime = substream->runtime;
208         struct snd_soc_pcm_runtime *rtd = substream->private_data;
209         struct snd_soc_card *card = rtd->card;
210         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
211 
212         /*
213          * On this platform for PCM device we support stereo
214          */
215 
216         runtime->hw.channels_max = DUAL_CHANNEL;
217         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
218                                    &constraints_channels);
219         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
220                                    &constraints_rates);
221 
222         machine->cap_i2s_instance = I2S_BT_INSTANCE;
223         return 0;
224 }
225 
226 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
227 {
228         struct snd_pcm_runtime *runtime = substream->runtime;
229         struct snd_soc_pcm_runtime *rtd = substream->private_data;
230         struct snd_soc_card *card = rtd->card;
231         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
232 
233         /*
234          * On this platform for PCM device we support stereo
235          */
236 
237         runtime->hw.channels_max = DUAL_CHANNEL;
238         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
239                                    &constraints_channels);
240         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
241                                    &constraints_rates);
242 
243         machine->cap_i2s_instance = I2S_SP_INSTANCE;
244         machine->capture_channel = CAP_CHANNEL0;
245         return 0;
246 }
247 
248 static int cz_da7219_params(struct snd_pcm_substream *substream,
249                                       struct snd_pcm_hw_params *params)
250 {
251         int wclk, bclk;
252 
253         wclk = params_rate(params);
254         bclk = wclk * params_channels(params) *
255                 snd_pcm_format_width(params_format(params));
256         /* ADAU7002 spec: "The ADAU7002 requires a BCLK rate
257          * that is minimum of 64x the LRCLK sample rate."
258          * DA7219 is the only clk source so for all codecs
259          * we have to limit bclk to 64X lrclk.
260          */
261         if (bclk < (wclk * 64))
262                 bclk = wclk * 64;
263         return da7219_clk_enable(substream, wclk, bclk);
264 }
265 
266 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
267 {
268         da7219_clk_disable();
269 }
270 
271 static const struct snd_soc_ops cz_da7219_play_ops = {
272         .startup = cz_da7219_play_startup,
273         .shutdown = cz_da7219_shutdown,
274         .hw_params = cz_da7219_params,
275 };
276 
277 static const struct snd_soc_ops cz_da7219_cap_ops = {
278         .startup = cz_da7219_cap_startup,
279         .shutdown = cz_da7219_shutdown,
280         .hw_params = cz_da7219_params,
281 };
282 
283 static const struct snd_soc_ops cz_max_play_ops = {
284         .startup = cz_max_startup,
285         .shutdown = cz_da7219_shutdown,
286         .hw_params = cz_da7219_params,
287 };
288 
289 static const struct snd_soc_ops cz_dmic0_cap_ops = {
290         .startup = cz_dmic0_startup,
291         .shutdown = cz_da7219_shutdown,
292         .hw_params = cz_da7219_params,
293 };
294 
295 static const struct snd_soc_ops cz_dmic1_cap_ops = {
296         .startup = cz_dmic1_startup,
297         .shutdown = cz_da7219_shutdown,
298         .hw_params = cz_da7219_params,
299 };
300 
301 SND_SOC_DAILINK_DEF(designware1,
302         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
303 SND_SOC_DAILINK_DEF(designware2,
304         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
305 SND_SOC_DAILINK_DEF(designware3,
306         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.3.auto")));
307 
308 SND_SOC_DAILINK_DEF(dlgs,
309         DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", "da7219-hifi")));
310 SND_SOC_DAILINK_DEF(mx,
311         DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
312 SND_SOC_DAILINK_DEF(adau,
313         DAILINK_COMP_ARRAY(COMP_CODEC("ADAU7002:00", "adau7002-hifi")));
314 
315 SND_SOC_DAILINK_DEF(platform,
316         DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));
317 
318 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
319         {
320                 .name = "amd-da7219-play",
321                 .stream_name = "Playback",
322                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
323                                 | SND_SOC_DAIFMT_CBM_CFM,
324                 .init = cz_da7219_init,
325                 .dpcm_playback = 1,
326                 .ops = &cz_da7219_play_ops,
327                 SND_SOC_DAILINK_REG(designware1, dlgs, platform),
328         },
329         {
330                 .name = "amd-da7219-cap",
331                 .stream_name = "Capture",
332                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
333                                 | SND_SOC_DAIFMT_CBM_CFM,
334                 .dpcm_capture = 1,
335                 .ops = &cz_da7219_cap_ops,
336                 SND_SOC_DAILINK_REG(designware2, dlgs, platform),
337         },
338         {
339                 .name = "amd-max98357-play",
340                 .stream_name = "HiFi Playback",
341                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
342                                 | SND_SOC_DAIFMT_CBM_CFM,
343                 .dpcm_playback = 1,
344                 .ops = &cz_max_play_ops,
345                 SND_SOC_DAILINK_REG(designware3, mx, platform),
346         },
347         {
348                 /* C panel DMIC */
349                 .name = "dmic0",
350                 .stream_name = "DMIC0 Capture",
351                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
352                                 | SND_SOC_DAIFMT_CBM_CFM,
353                 .dpcm_capture = 1,
354                 .ops = &cz_dmic0_cap_ops,
355                 SND_SOC_DAILINK_REG(designware3, adau, platform),
356         },
357         {
358                 /* A/B panel DMIC */
359                 .name = "dmic1",
360                 .stream_name = "DMIC1 Capture",
361                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
362                                 | SND_SOC_DAIFMT_CBM_CFM,
363                 .dpcm_capture = 1,
364                 .ops = &cz_dmic1_cap_ops,
365                 SND_SOC_DAILINK_REG(designware2, adau, platform),
366         },
367 };
368 
369 static const struct snd_soc_dapm_widget cz_widgets[] = {
370         SND_SOC_DAPM_HP("Headphones", NULL),
371         SND_SOC_DAPM_SPK("Speakers", NULL),
372         SND_SOC_DAPM_MIC("Headset Mic", NULL),
373         SND_SOC_DAPM_MIC("Int Mic", NULL),
374 };
375 
376 static const struct snd_soc_dapm_route cz_audio_route[] = {
377         {"Headphones", NULL, "HPL"},
378         {"Headphones", NULL, "HPR"},
379         {"MIC", NULL, "Headset Mic"},
380         {"Speakers", NULL, "Speaker"},
381         {"PDM_DAT", NULL, "Int Mic"},
382 };
383 
384 static const struct snd_kcontrol_new cz_mc_controls[] = {
385         SOC_DAPM_PIN_SWITCH("Headphones"),
386         SOC_DAPM_PIN_SWITCH("Speakers"),
387         SOC_DAPM_PIN_SWITCH("Headset Mic"),
388         SOC_DAPM_PIN_SWITCH("Int Mic"),
389 };
390 
391 static struct snd_soc_card cz_card = {
392         .name = "acpd7219m98357",
393         .owner = THIS_MODULE,
394         .dai_link = cz_dai_7219_98357,
395         .num_links = ARRAY_SIZE(cz_dai_7219_98357),
396         .dapm_widgets = cz_widgets,
397         .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
398         .dapm_routes = cz_audio_route,
399         .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
400         .controls = cz_mc_controls,
401         .num_controls = ARRAY_SIZE(cz_mc_controls),
402 };
403 
404 static struct regulator_consumer_supply acp_da7219_supplies[] = {
405         REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
406         REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
407         REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
408         REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
409 };
410 
411 static struct regulator_init_data acp_da7219_data = {
412         .constraints = {
413                 .always_on = 1,
414         },
415         .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
416         .consumer_supplies = acp_da7219_supplies,
417 };
418 
419 static struct regulator_config acp_da7219_cfg = {
420         .init_data = &acp_da7219_data,
421 };
422 
423 static struct regulator_ops acp_da7219_ops = {
424 };
425 
426 static const struct regulator_desc acp_da7219_desc = {
427         .name = "reg-fixed-1.8V",
428         .type = REGULATOR_VOLTAGE,
429         .owner = THIS_MODULE,
430         .ops = &acp_da7219_ops,
431         .fixed_uV = 1800000, /* 1.8V */
432         .n_voltages = 1,
433 };
434 
435 static int cz_probe(struct platform_device *pdev)
436 {
437         int ret;
438         struct snd_soc_card *card;
439         struct acp_platform_info *machine;
440         struct regulator_dev *rdev;
441 
442         acp_da7219_cfg.dev = &pdev->dev;
443         rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
444                                        &acp_da7219_cfg);
445         if (IS_ERR(rdev)) {
446                 dev_err(&pdev->dev, "Failed to register regulator: %d\n",
447                         (int)PTR_ERR(rdev));
448                 return -EINVAL;
449         }
450 
451         machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
452                                GFP_KERNEL);
453         if (!machine)
454                 return -ENOMEM;
455         card = &cz_card;
456         cz_card.dev = &pdev->dev;
457         platform_set_drvdata(pdev, card);
458         snd_soc_card_set_drvdata(card, machine);
459         ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
460         if (ret) {
461                 dev_err(&pdev->dev,
462                                 "devm_snd_soc_register_card(%s) failed: %d\n",
463                                 cz_card.name, ret);
464                 return ret;
465         }
466         bt_uart_enable = !device_property_read_bool(&pdev->dev,
467                                                     "bt-pad-enable");
468         return 0;
469 }
470 
471 static const struct acpi_device_id cz_audio_acpi_match[] = {
472         { "AMD7219", 0 },
473         {},
474 };
475 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
476 
477 static struct platform_driver cz_pcm_driver = {
478         .driver = {
479                 .name = "cz-da7219-max98357a",
480                 .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
481                 .pm = &snd_soc_pm_ops,
482         },
483         .probe = cz_probe,
484 };
485 
486 module_platform_driver(cz_pcm_driver);
487 
488 MODULE_AUTHOR("akshu.agrawal@amd.com");
489 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
490 MODULE_LICENSE("GPL v2");
491 

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