Merge remote-tracking branch 'asoc/topic/intel' into asoc-next
[sfrench/cifs-2.6.git] / sound / soc / intel / boards / cht_bsw_max98090_ti.c
1 /*
2  *  cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
3  *  platforms Cherrytrail and Braswell, with max98090 & TI codec.
4  *
5  *  Copyright (C) 2015 Intel Corp
6  *  Author: Fang, Yang A <yang.a.fang@intel.com>
7  *  This file is modified from cht_bsw_rt5645.c
8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9  *
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; version 2 of the License.
13  *
14  *  This program is distributed in the hope that it will be useful, but
15  *  WITHOUT ANY WARRANTY; without even the implied warranty of
16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  *  General Public License for more details.
18  *
19  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20  */
21
22 #include <linux/module.h>
23 #include <linux/platform_device.h>
24 #include <linux/slab.h>
25 #include <linux/acpi.h>
26 #include <linux/clk.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/jack.h>
31 #include "../../codecs/max98090.h"
32 #include "../atom/sst-atom-controls.h"
33 #include "../../codecs/ts3a227e.h"
34
35 #define CHT_PLAT_CLK_3_HZ       19200000
36 #define CHT_CODEC_DAI   "HiFi"
37
38 struct cht_mc_private {
39         struct clk *mclk;
40         struct snd_soc_jack jack;
41         bool ts3a227e_present;
42 };
43
44 static int platform_clock_control(struct snd_soc_dapm_widget *w,
45                                           struct snd_kcontrol *k, int  event)
46 {
47         struct snd_soc_dapm_context *dapm = w->dapm;
48         struct snd_soc_card *card = dapm->card;
49         struct snd_soc_dai *codec_dai;
50         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
51         int ret;
52
53         codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
54         if (!codec_dai) {
55                 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
56                 return -EIO;
57         }
58
59         if (SND_SOC_DAPM_EVENT_ON(event)) {
60                 ret = clk_prepare_enable(ctx->mclk);
61                 if (ret < 0) {
62                         dev_err(card->dev,
63                                 "could not configure MCLK state");
64                         return ret;
65                 }
66         } else {
67                 clk_disable_unprepare(ctx->mclk);
68         }
69
70         return 0;
71 }
72
73 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
74         SND_SOC_DAPM_HP("Headphone", NULL),
75         SND_SOC_DAPM_MIC("Headset Mic", NULL),
76         SND_SOC_DAPM_MIC("Int Mic", NULL),
77         SND_SOC_DAPM_SPK("Ext Spk", NULL),
78         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
79                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
80                             SND_SOC_DAPM_POST_PMD),
81 };
82
83 static const struct snd_soc_dapm_route cht_audio_map[] = {
84         {"IN34", NULL, "Headset Mic"},
85         {"Headset Mic", NULL, "MICBIAS"},
86         {"DMICL", NULL, "Int Mic"},
87         {"Headphone", NULL, "HPL"},
88         {"Headphone", NULL, "HPR"},
89         {"Ext Spk", NULL, "SPKL"},
90         {"Ext Spk", NULL, "SPKR"},
91         {"HiFi Playback", NULL, "ssp2 Tx"},
92         {"ssp2 Tx", NULL, "codec_out0"},
93         {"ssp2 Tx", NULL, "codec_out1"},
94         {"codec_in0", NULL, "ssp2 Rx" },
95         {"codec_in1", NULL, "ssp2 Rx" },
96         {"ssp2 Rx", NULL, "HiFi Capture"},
97         {"Headphone", NULL, "Platform Clock"},
98         {"Headset Mic", NULL, "Platform Clock"},
99         {"Int Mic", NULL, "Platform Clock"},
100         {"Ext Spk", NULL, "Platform Clock"},
101 };
102
103 static const struct snd_kcontrol_new cht_mc_controls[] = {
104         SOC_DAPM_PIN_SWITCH("Headphone"),
105         SOC_DAPM_PIN_SWITCH("Headset Mic"),
106         SOC_DAPM_PIN_SWITCH("Int Mic"),
107         SOC_DAPM_PIN_SWITCH("Ext Spk"),
108 };
109
110 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
111                              struct snd_pcm_hw_params *params)
112 {
113         struct snd_soc_pcm_runtime *rtd = substream->private_data;
114         struct snd_soc_dai *codec_dai = rtd->codec_dai;
115         int ret;
116
117         ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
118                                      CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
119         if (ret < 0) {
120                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
121                 return ret;
122         }
123
124         return 0;
125 }
126
127 static int cht_ti_jack_event(struct notifier_block *nb,
128                 unsigned long event, void *data)
129 {
130         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
131         struct snd_soc_dapm_context *dapm = &jack->card->dapm;
132
133         if (event & SND_JACK_MICROPHONE) {
134                 snd_soc_dapm_force_enable_pin(dapm, "SHDN");
135                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
136                 snd_soc_dapm_sync(dapm);
137         } else {
138                 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
139                 snd_soc_dapm_disable_pin(dapm, "SHDN");
140                 snd_soc_dapm_sync(dapm);
141         }
142
143         return 0;
144 }
145
146 static struct notifier_block cht_jack_nb = {
147         .notifier_call = cht_ti_jack_event,
148 };
149
150 static struct snd_soc_jack_pin hs_jack_pins[] = {
151         {
152                 .pin    = "Headphone",
153                 .mask   = SND_JACK_HEADPHONE,
154         },
155         {
156                 .pin    = "Headset Mic",
157                 .mask   = SND_JACK_MICROPHONE,
158         },
159 };
160
161 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
162         {
163                 .name           = "hp",
164                 .report         = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
165                 .debounce_time  = 200,
166         },
167         {
168                 .name           = "mic",
169                 .invert         = 1,
170                 .report         = SND_JACK_MICROPHONE,
171                 .debounce_time  = 200,
172         },
173 };
174
175 static const struct acpi_gpio_params hp_gpios = { 0, 0, false };
176 static const struct acpi_gpio_params mic_gpios = { 1, 0, false };
177
178 static const struct acpi_gpio_mapping acpi_max98090_gpios[] = {
179         { "hp-gpios", &hp_gpios, 1 },
180         { "mic-gpios", &mic_gpios, 1 },
181         {},
182 };
183
184 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
185 {
186         int ret;
187         int jack_type;
188         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
189         struct snd_soc_jack *jack = &ctx->jack;
190
191         if (ctx->ts3a227e_present) {
192                 /*
193                  * The jack has already been created in the
194                  * cht_max98090_headset_init() function.
195                  */
196                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
197                 return 0;
198         }
199
200         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
201
202         ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
203                                     jack_type, jack,
204                                     hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
205         if (ret) {
206                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
207                 return ret;
208         }
209
210         ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack,
211                                       ARRAY_SIZE(hs_jack_gpios),
212                                       hs_jack_gpios);
213         if (ret) {
214                 /*
215                  * flag error but don't bail if jack detect is broken
216                  * due to platform issues or bad BIOS/configuration
217                  */
218                 dev_err(runtime->dev,
219                         "jack detection gpios not added, error %d\n", ret);
220         }
221
222         /*
223          * The firmware might enable the clock at
224          * boot (this information may or may not
225          * be reflected in the enable clock register).
226          * To change the rate we must disable the clock
227          * first to cover these cases. Due to common
228          * clock framework restrictions that do not allow
229          * to disable a clock that has not been enabled,
230          * we need to enable the clock first.
231          */
232         ret = clk_prepare_enable(ctx->mclk);
233         if (!ret)
234                 clk_disable_unprepare(ctx->mclk);
235
236         ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
237
238         if (ret)
239                 dev_err(runtime->dev, "unable to set MCLK rate\n");
240
241         return ret;
242 }
243
244 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
245                             struct snd_pcm_hw_params *params)
246 {
247         struct snd_interval *rate = hw_param_interval(params,
248                         SNDRV_PCM_HW_PARAM_RATE);
249         struct snd_interval *channels = hw_param_interval(params,
250                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
251         int ret = 0;
252         unsigned int fmt = 0;
253
254         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
255         if (ret < 0) {
256                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
257                 return ret;
258         }
259
260         fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
261                                 | SND_SOC_DAIFMT_CBS_CFS;
262
263         ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
264         if (ret < 0) {
265                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
266                 return ret;
267         }
268
269         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
270         rate->min = rate->max = 48000;
271         channels->min = channels->max = 2;
272
273         /* set SSP2 to 16-bit */
274         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
275         return 0;
276 }
277
278 static int cht_aif1_startup(struct snd_pcm_substream *substream)
279 {
280         return snd_pcm_hw_constraint_single(substream->runtime,
281                         SNDRV_PCM_HW_PARAM_RATE, 48000);
282 }
283
284 static int cht_max98090_headset_init(struct snd_soc_component *component)
285 {
286         struct snd_soc_card *card = component->card;
287         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
288         struct snd_soc_jack *jack = &ctx->jack;
289         int jack_type;
290         int ret;
291
292         /*
293          * TI supports 4 butons headset detection
294          * KEY_MEDIA
295          * KEY_VOICECOMMAND
296          * KEY_VOLUMEUP
297          * KEY_VOLUMEDOWN
298          */
299         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
300                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
301                     SND_JACK_BTN_2 | SND_JACK_BTN_3;
302
303         ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
304                                     jack, NULL, 0);
305         if (ret) {
306                 dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
307                 return ret;
308         }
309
310         return ts3a227e_enable_jack_detect(component, jack);
311 }
312
313 static const struct snd_soc_ops cht_aif1_ops = {
314         .startup = cht_aif1_startup,
315 };
316
317 static const struct snd_soc_ops cht_be_ssp2_ops = {
318         .hw_params = cht_aif1_hw_params,
319 };
320
321 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
322         .name = "Headset Chip",
323         .init = cht_max98090_headset_init,
324         .codec_name = "i2c-104C227E:00",
325 };
326
327 static struct snd_soc_dai_link cht_dailink[] = {
328         [MERR_DPCM_AUDIO] = {
329                 .name = "Audio Port",
330                 .stream_name = "Audio",
331                 .cpu_dai_name = "media-cpu-dai",
332                 .codec_dai_name = "snd-soc-dummy-dai",
333                 .codec_name = "snd-soc-dummy",
334                 .platform_name = "sst-mfld-platform",
335                 .nonatomic = true,
336                 .dynamic = 1,
337                 .dpcm_playback = 1,
338                 .dpcm_capture = 1,
339                 .ops = &cht_aif1_ops,
340         },
341         [MERR_DPCM_DEEP_BUFFER] = {
342                 .name = "Deep-Buffer Audio Port",
343                 .stream_name = "Deep-Buffer Audio",
344                 .cpu_dai_name = "deepbuffer-cpu-dai",
345                 .codec_dai_name = "snd-soc-dummy-dai",
346                 .codec_name = "snd-soc-dummy",
347                 .platform_name = "sst-mfld-platform",
348                 .nonatomic = true,
349                 .dynamic = 1,
350                 .dpcm_playback = 1,
351                 .ops = &cht_aif1_ops,
352         },
353         /* back ends */
354         {
355                 .name = "SSP2-Codec",
356                 .id = 0,
357                 .cpu_dai_name = "ssp2-port",
358                 .platform_name = "sst-mfld-platform",
359                 .no_pcm = 1,
360                 .codec_dai_name = "HiFi",
361                 .codec_name = "i2c-193C9890:00",
362                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
363                                         | SND_SOC_DAIFMT_CBS_CFS,
364                 .init = cht_codec_init,
365                 .be_hw_params_fixup = cht_codec_fixup,
366                 .dpcm_playback = 1,
367                 .dpcm_capture = 1,
368                 .ops = &cht_be_ssp2_ops,
369         },
370 };
371
372 /* SoC card */
373 static struct snd_soc_card snd_soc_card_cht = {
374         .name = "chtmax98090",
375         .owner = THIS_MODULE,
376         .dai_link = cht_dailink,
377         .num_links = ARRAY_SIZE(cht_dailink),
378         .aux_dev = &cht_max98090_headset_dev,
379         .num_aux_devs = 1,
380         .dapm_widgets = cht_dapm_widgets,
381         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
382         .dapm_routes = cht_audio_map,
383         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
384         .controls = cht_mc_controls,
385         .num_controls = ARRAY_SIZE(cht_mc_controls),
386 };
387
388 static int snd_cht_mc_probe(struct platform_device *pdev)
389 {
390         struct device *dev = &pdev->dev;
391         int ret_val = 0;
392         struct cht_mc_private *drv;
393
394         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
395         if (!drv)
396                 return -ENOMEM;
397
398         drv->ts3a227e_present = acpi_dev_found("104C227E");
399         if (!drv->ts3a227e_present) {
400                 /* no need probe TI jack detection chip */
401                 snd_soc_card_cht.aux_dev = NULL;
402                 snd_soc_card_cht.num_aux_devs = 0;
403
404                 ret_val = devm_acpi_dev_add_driver_gpios(dev->parent,
405                                                          acpi_max98090_gpios);
406                 if (ret_val)
407                         dev_dbg(dev, "Unable to add GPIO mapping table\n");
408         }
409
410         /* register the soc card */
411         snd_soc_card_cht.dev = &pdev->dev;
412         snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
413
414         drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
415         if (IS_ERR(drv->mclk)) {
416                 dev_err(&pdev->dev,
417                         "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
418                         PTR_ERR(drv->mclk));
419                 return PTR_ERR(drv->mclk);
420         }
421
422         ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
423         if (ret_val) {
424                 dev_err(&pdev->dev,
425                         "snd_soc_register_card failed %d\n", ret_val);
426                 return ret_val;
427         }
428         platform_set_drvdata(pdev, &snd_soc_card_cht);
429         return ret_val;
430 }
431
432 static struct platform_driver snd_cht_mc_driver = {
433         .driver = {
434                 .name = "cht-bsw-max98090",
435         },
436         .probe = snd_cht_mc_probe,
437 };
438
439 module_platform_driver(snd_cht_mc_driver)
440
441 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
442 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
443 MODULE_LICENSE("GPL v2");
444 MODULE_ALIAS("platform:cht-bsw-max98090");