1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * bytcht_es8316.c - ASoc Machine driver for Intel Baytrail/Cherrytrail
4 * platforms with Everest ES8316 SoC
5 *
6 * Copyright (C) 2017 Endless Mobile, Inc.
7 * Authors: David Yang <yangxiaohua@everest-semi.com>,
8 * Daniel Drake <drake@endlessm.com>
9 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 *
12 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13 */
14 #include <linux/acpi.h>
15 #include <linux/clk.h>
16 #include <linux/device.h>
17 #include <linux/dmi.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/i2c.h>
20 #include <linux/init.h>
21 #include <linux/input.h>
22 #include <linux/module.h>
23 #include <linux/platform_device.h>
24 #include <linux/slab.h>
25 #include <sound/jack.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/soc-acpi.h>
30 #include "../atom/sst-atom-controls.h"
31 #include "../common/soc-intel-quirks.h"
32
33 /* jd-inv + terminating entry */
34 #define MAX_NO_PROPS 2
35
36 struct byt_cht_es8316_private {
37 struct clk *mclk;
38 struct snd_soc_jack jack;
39 struct gpio_desc *speaker_en_gpio;
40 bool speaker_en;
41 };
42
43 enum {
44 BYT_CHT_ES8316_INTMIC_IN1_MAP,
45 BYT_CHT_ES8316_INTMIC_IN2_MAP,
46 };
47
48 #define BYT_CHT_ES8316_MAP(quirk) ((quirk) & GENMASK(3, 0))
49 #define BYT_CHT_ES8316_SSP0 BIT(16)
50 #define BYT_CHT_ES8316_MONO_SPEAKER BIT(17)
51 #define BYT_CHT_ES8316_JD_INVERTED BIT(18)
52
53 static unsigned long quirk;
54
55 static int quirk_override = -1;
56 module_param_named(quirk, quirk_override, int, 0444);
57 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
58
log_quirks(struct device * dev)59 static void log_quirks(struct device *dev)
60 {
61 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN1_MAP)
62 dev_info(dev, "quirk IN1_MAP enabled");
63 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN2_MAP)
64 dev_info(dev, "quirk IN2_MAP enabled");
65 if (quirk & BYT_CHT_ES8316_SSP0)
66 dev_info(dev, "quirk SSP0 enabled");
67 if (quirk & BYT_CHT_ES8316_MONO_SPEAKER)
68 dev_info(dev, "quirk MONO_SPEAKER enabled\n");
69 if (quirk & BYT_CHT_ES8316_JD_INVERTED)
70 dev_info(dev, "quirk JD_INVERTED enabled\n");
71 }
72
byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)73 static int byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
74 struct snd_kcontrol *kcontrol, int event)
75 {
76 struct snd_soc_card *card = w->dapm->card;
77 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
78
79 if (SND_SOC_DAPM_EVENT_ON(event))
80 priv->speaker_en = true;
81 else
82 priv->speaker_en = false;
83
84 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
85
86 return 0;
87 }
88
89 static const struct snd_soc_dapm_widget byt_cht_es8316_widgets[] = {
90 SND_SOC_DAPM_SPK("Speaker", NULL),
91 SND_SOC_DAPM_HP("Headphone", NULL),
92 SND_SOC_DAPM_MIC("Headset Mic", NULL),
93 SND_SOC_DAPM_MIC("Internal Mic", NULL),
94
95 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
96 byt_cht_es8316_speaker_power_event,
97 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
98 };
99
100 static const struct snd_soc_dapm_route byt_cht_es8316_audio_map[] = {
101 {"Headphone", NULL, "HPOL"},
102 {"Headphone", NULL, "HPOR"},
103
104 /*
105 * There is no separate speaker output instead the speakers are muxed to
106 * the HP outputs. The mux is controlled by the "Speaker Power" supply.
107 */
108 {"Speaker", NULL, "HPOL"},
109 {"Speaker", NULL, "HPOR"},
110 {"Speaker", NULL, "Speaker Power"},
111 };
112
113 static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in1_map[] = {
114 {"MIC1", NULL, "Internal Mic"},
115 {"MIC2", NULL, "Headset Mic"},
116 };
117
118 static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in2_map[] = {
119 {"MIC2", NULL, "Internal Mic"},
120 {"MIC1", NULL, "Headset Mic"},
121 };
122
123 static const struct snd_soc_dapm_route byt_cht_es8316_ssp0_map[] = {
124 {"Playback", NULL, "ssp0 Tx"},
125 {"ssp0 Tx", NULL, "modem_out"},
126 {"modem_in", NULL, "ssp0 Rx"},
127 {"ssp0 Rx", NULL, "Capture"},
128 };
129
130 static const struct snd_soc_dapm_route byt_cht_es8316_ssp2_map[] = {
131 {"Playback", NULL, "ssp2 Tx"},
132 {"ssp2 Tx", NULL, "codec_out0"},
133 {"ssp2 Tx", NULL, "codec_out1"},
134 {"codec_in0", NULL, "ssp2 Rx" },
135 {"codec_in1", NULL, "ssp2 Rx" },
136 {"ssp2 Rx", NULL, "Capture"},
137 };
138
139 static const struct snd_kcontrol_new byt_cht_es8316_controls[] = {
140 SOC_DAPM_PIN_SWITCH("Speaker"),
141 SOC_DAPM_PIN_SWITCH("Headphone"),
142 SOC_DAPM_PIN_SWITCH("Headset Mic"),
143 SOC_DAPM_PIN_SWITCH("Internal Mic"),
144 };
145
146 static struct snd_soc_jack_pin byt_cht_es8316_jack_pins[] = {
147 {
148 .pin = "Headphone",
149 .mask = SND_JACK_HEADPHONE,
150 },
151 {
152 .pin = "Headset Mic",
153 .mask = SND_JACK_MICROPHONE,
154 },
155 };
156
byt_cht_es8316_init(struct snd_soc_pcm_runtime * runtime)157 static int byt_cht_es8316_init(struct snd_soc_pcm_runtime *runtime)
158 {
159 struct snd_soc_component *codec = asoc_rtd_to_codec(runtime, 0)->component;
160 struct snd_soc_card *card = runtime->card;
161 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
162 const struct snd_soc_dapm_route *custom_map;
163 int num_routes;
164 int ret;
165
166 card->dapm.idle_bias_off = true;
167
168 switch (BYT_CHT_ES8316_MAP(quirk)) {
169 case BYT_CHT_ES8316_INTMIC_IN1_MAP:
170 default:
171 custom_map = byt_cht_es8316_intmic_in1_map;
172 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in1_map);
173 break;
174 case BYT_CHT_ES8316_INTMIC_IN2_MAP:
175 custom_map = byt_cht_es8316_intmic_in2_map;
176 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in2_map);
177 break;
178 }
179 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
180 if (ret)
181 return ret;
182
183 if (quirk & BYT_CHT_ES8316_SSP0) {
184 custom_map = byt_cht_es8316_ssp0_map;
185 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp0_map);
186 } else {
187 custom_map = byt_cht_es8316_ssp2_map;
188 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp2_map);
189 }
190 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
191 if (ret)
192 return ret;
193
194 /*
195 * The firmware might enable the clock at boot (this information
196 * may or may not be reflected in the enable clock register).
197 * To change the rate we must disable the clock first to cover these
198 * cases. Due to common clock framework restrictions that do not allow
199 * to disable a clock that has not been enabled, we need to enable
200 * the clock first.
201 */
202 ret = clk_prepare_enable(priv->mclk);
203 if (!ret)
204 clk_disable_unprepare(priv->mclk);
205
206 ret = clk_set_rate(priv->mclk, 19200000);
207 if (ret)
208 dev_err(card->dev, "unable to set MCLK rate\n");
209
210 ret = clk_prepare_enable(priv->mclk);
211 if (ret)
212 dev_err(card->dev, "unable to enable MCLK\n");
213
214 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(runtime, 0), 0, 19200000,
215 SND_SOC_CLOCK_IN);
216 if (ret < 0) {
217 dev_err(card->dev, "can't set codec clock %d\n", ret);
218 return ret;
219 }
220
221 ret = snd_soc_card_jack_new(card, "Headset",
222 SND_JACK_HEADSET | SND_JACK_BTN_0,
223 &priv->jack, byt_cht_es8316_jack_pins,
224 ARRAY_SIZE(byt_cht_es8316_jack_pins));
225 if (ret) {
226 dev_err(card->dev, "jack creation failed %d\n", ret);
227 return ret;
228 }
229
230 snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
231 snd_soc_component_set_jack(codec, &priv->jack, NULL);
232
233 return 0;
234 }
235
byt_cht_es8316_codec_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)236 static int byt_cht_es8316_codec_fixup(struct snd_soc_pcm_runtime *rtd,
237 struct snd_pcm_hw_params *params)
238 {
239 struct snd_interval *rate = hw_param_interval(params,
240 SNDRV_PCM_HW_PARAM_RATE);
241 struct snd_interval *channels = hw_param_interval(params,
242 SNDRV_PCM_HW_PARAM_CHANNELS);
243 int ret, bits;
244
245 /* The DSP will covert the FE rate to 48k, stereo */
246 rate->min = rate->max = 48000;
247 channels->min = channels->max = 2;
248
249 if (quirk & BYT_CHT_ES8316_SSP0) {
250 /* set SSP0 to 16-bit */
251 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
252 bits = 16;
253 } else {
254 /* set SSP2 to 24-bit */
255 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
256 bits = 24;
257 }
258
259 /*
260 * Default mode for SSP configuration is TDM 4 slot, override config
261 * with explicit setting to I2S 2ch 24-bit. The word length is set with
262 * dai_set_tdm_slot() since there is no other API exposed
263 */
264 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
265 SND_SOC_DAIFMT_I2S |
266 SND_SOC_DAIFMT_NB_NF |
267 SND_SOC_DAIFMT_CBS_CFS
268 );
269 if (ret < 0) {
270 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
271 return ret;
272 }
273
274 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits);
275 if (ret < 0) {
276 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
277 return ret;
278 }
279
280 return 0;
281 }
282
byt_cht_es8316_aif1_startup(struct snd_pcm_substream * substream)283 static int byt_cht_es8316_aif1_startup(struct snd_pcm_substream *substream)
284 {
285 return snd_pcm_hw_constraint_single(substream->runtime,
286 SNDRV_PCM_HW_PARAM_RATE, 48000);
287 }
288
289 static const struct snd_soc_ops byt_cht_es8316_aif1_ops = {
290 .startup = byt_cht_es8316_aif1_startup,
291 };
292
293 SND_SOC_DAILINK_DEF(dummy,
294 DAILINK_COMP_ARRAY(COMP_DUMMY()));
295
296 SND_SOC_DAILINK_DEF(media,
297 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
298
299 SND_SOC_DAILINK_DEF(deepbuffer,
300 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
301
302 SND_SOC_DAILINK_DEF(ssp2_port,
303 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
304 SND_SOC_DAILINK_DEF(ssp2_codec,
305 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8316:00", "ES8316 HiFi")));
306
307 SND_SOC_DAILINK_DEF(platform,
308 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
309
310 static struct snd_soc_dai_link byt_cht_es8316_dais[] = {
311 [MERR_DPCM_AUDIO] = {
312 .name = "Audio Port",
313 .stream_name = "Audio",
314 .nonatomic = true,
315 .dynamic = 1,
316 .dpcm_playback = 1,
317 .dpcm_capture = 1,
318 .ops = &byt_cht_es8316_aif1_ops,
319 SND_SOC_DAILINK_REG(media, dummy, platform),
320 },
321
322 [MERR_DPCM_DEEP_BUFFER] = {
323 .name = "Deep-Buffer Audio Port",
324 .stream_name = "Deep-Buffer Audio",
325 .nonatomic = true,
326 .dynamic = 1,
327 .dpcm_playback = 1,
328 .ops = &byt_cht_es8316_aif1_ops,
329 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
330 },
331
332 /* back ends */
333 {
334 /* Only SSP2 has been tested here, so BYT-CR platforms that
335 * require SSP0 will not work.
336 */
337 .name = "SSP2-Codec",
338 .id = 0,
339 .no_pcm = 1,
340 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
341 | SND_SOC_DAIFMT_CBS_CFS,
342 .be_hw_params_fixup = byt_cht_es8316_codec_fixup,
343 .nonatomic = true,
344 .dpcm_playback = 1,
345 .dpcm_capture = 1,
346 .init = byt_cht_es8316_init,
347 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
348 },
349 };
350
351
352 /* SoC card */
353 static char codec_name[SND_ACPI_I2C_ID_LEN];
354 #if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
355 static char long_name[50]; /* = "bytcht-es8316-*-spk-*-mic" */
356 #endif
357 static char components_string[32]; /* = "cfg-spk:* cfg-mic:* */
358
byt_cht_es8316_suspend(struct snd_soc_card * card)359 static int byt_cht_es8316_suspend(struct snd_soc_card *card)
360 {
361 struct snd_soc_component *component;
362
363 for_each_card_components(card, component) {
364 if (!strcmp(component->name, codec_name)) {
365 dev_dbg(component->dev, "disabling jack detect before suspend\n");
366 snd_soc_component_set_jack(component, NULL, NULL);
367 break;
368 }
369 }
370
371 return 0;
372 }
373
byt_cht_es8316_resume(struct snd_soc_card * card)374 static int byt_cht_es8316_resume(struct snd_soc_card *card)
375 {
376 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
377 struct snd_soc_component *component;
378
379 for_each_card_components(card, component) {
380 if (!strcmp(component->name, codec_name)) {
381 dev_dbg(component->dev, "re-enabling jack detect after resume\n");
382 snd_soc_component_set_jack(component, &priv->jack, NULL);
383 break;
384 }
385 }
386
387 /*
388 * Some Cherry Trail boards with an ES8316 codec have a bug in their
389 * ACPI tables where the MSSL1680 touchscreen's _PS0 and _PS3 methods
390 * wrongly also set the speaker-enable GPIO to 1/0. Testing has shown
391 * that this really is a bug and the GPIO has no influence on the
392 * touchscreen at all.
393 *
394 * The silead.c touchscreen driver does not support runtime suspend, so
395 * the GPIO can only be changed underneath us during a system suspend.
396 * This resume() function runs from a pm complete() callback, and thus
397 * is guaranteed to run after the touchscreen driver/ACPI-subsys has
398 * brought the touchscreen back up again (and thus changed the GPIO).
399 *
400 * So to work around this we pass GPIOD_FLAGS_BIT_NONEXCLUSIVE when
401 * requesting the GPIO and we set its value here to undo any changes
402 * done by the touchscreen's broken _PS0 ACPI method.
403 */
404 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
405
406 return 0;
407 }
408
409 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
410 /* use space before codec name to simplify card ID, and simplify driver name */
411 #define CARD_NAME "bytcht es8316" /* card name will be 'sof-bytcht es8316' */
412 #define DRIVER_NAME "SOF"
413 #else
414 #define CARD_NAME "bytcht-es8316"
415 #define DRIVER_NAME NULL /* card name will be used for driver name */
416 #endif
417
418 static struct snd_soc_card byt_cht_es8316_card = {
419 .name = CARD_NAME,
420 .driver_name = DRIVER_NAME,
421 .owner = THIS_MODULE,
422 .dai_link = byt_cht_es8316_dais,
423 .num_links = ARRAY_SIZE(byt_cht_es8316_dais),
424 .dapm_widgets = byt_cht_es8316_widgets,
425 .num_dapm_widgets = ARRAY_SIZE(byt_cht_es8316_widgets),
426 .dapm_routes = byt_cht_es8316_audio_map,
427 .num_dapm_routes = ARRAY_SIZE(byt_cht_es8316_audio_map),
428 .controls = byt_cht_es8316_controls,
429 .num_controls = ARRAY_SIZE(byt_cht_es8316_controls),
430 .fully_routed = true,
431 .suspend_pre = byt_cht_es8316_suspend,
432 .resume_post = byt_cht_es8316_resume,
433 };
434
435 static const struct acpi_gpio_params first_gpio = { 0, 0, false };
436
437 static const struct acpi_gpio_mapping byt_cht_es8316_gpios[] = {
438 { "speaker-enable-gpios", &first_gpio, 1 },
439 { },
440 };
441
442 /* Please keep this list alphabetically sorted */
443 static const struct dmi_system_id byt_cht_es8316_quirk_table[] = {
444 { /* Irbis NB41 */
445 .matches = {
446 DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"),
447 DMI_MATCH(DMI_PRODUCT_NAME, "NB41"),
448 },
449 .driver_data = (void *)(BYT_CHT_ES8316_SSP0
450 | BYT_CHT_ES8316_INTMIC_IN2_MAP
451 | BYT_CHT_ES8316_JD_INVERTED),
452 },
453 { /* Nanote UMPC-01 */
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
457 },
458 .driver_data = (void *)BYT_CHT_ES8316_INTMIC_IN1_MAP,
459 },
460 { /* Teclast X98 Plus II */
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"),
464 },
465 .driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN1_MAP
466 | BYT_CHT_ES8316_JD_INVERTED),
467 },
468 {}
469 };
470
snd_byt_cht_es8316_mc_probe(struct platform_device * pdev)471 static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
472 {
473 static const char * const mic_name[] = { "in1", "in2" };
474 struct property_entry props[MAX_NO_PROPS] = {};
475 struct byt_cht_es8316_private *priv;
476 const struct dmi_system_id *dmi_id;
477 struct device *dev = &pdev->dev;
478 struct snd_soc_acpi_mach *mach;
479 const char *platform_name;
480 struct acpi_device *adev;
481 struct device *codec_dev;
482 unsigned int cnt = 0;
483 int dai_index = 0;
484 int i;
485 int ret = 0;
486
487 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
488 if (!priv)
489 return -ENOMEM;
490
491 mach = dev->platform_data;
492 /* fix index of codec dai */
493 for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) {
494 if (!strcmp(byt_cht_es8316_dais[i].codecs->name,
495 "i2c-ESSX8316:00")) {
496 dai_index = i;
497 break;
498 }
499 }
500
501 /* fixup codec name based on HID */
502 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
503 if (adev) {
504 snprintf(codec_name, sizeof(codec_name),
505 "i2c-%s", acpi_dev_name(adev));
506 put_device(&adev->dev);
507 byt_cht_es8316_dais[dai_index].codecs->name = codec_name;
508 }
509
510 /* override plaform name, if required */
511 byt_cht_es8316_card.dev = dev;
512 platform_name = mach->mach_params.platform;
513
514 ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card,
515 platform_name);
516 if (ret)
517 return ret;
518
519 /* Check for BYTCR or other platform and setup quirks */
520 dmi_id = dmi_first_match(byt_cht_es8316_quirk_table);
521 if (dmi_id) {
522 quirk = (unsigned long)dmi_id->driver_data;
523 } else if (soc_intel_is_byt() &&
524 mach->mach_params.acpi_ipc_irq_index == 0) {
525 /* On BYTCR default to SSP0, internal-mic-in2-map, mono-spk */
526 quirk = BYT_CHT_ES8316_SSP0 | BYT_CHT_ES8316_INTMIC_IN2_MAP |
527 BYT_CHT_ES8316_MONO_SPEAKER;
528 } else {
529 /* Others default to internal-mic-in1-map, mono-speaker */
530 quirk = BYT_CHT_ES8316_INTMIC_IN1_MAP |
531 BYT_CHT_ES8316_MONO_SPEAKER;
532 }
533 if (quirk_override != -1) {
534 dev_info(dev, "Overriding quirk 0x%lx => 0x%x\n",
535 quirk, quirk_override);
536 quirk = quirk_override;
537 }
538 log_quirks(dev);
539
540 if (quirk & BYT_CHT_ES8316_SSP0)
541 byt_cht_es8316_dais[dai_index].cpus->dai_name = "ssp0-port";
542
543 /* get the clock */
544 priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
545 if (IS_ERR(priv->mclk)) {
546 ret = PTR_ERR(priv->mclk);
547 dev_err(dev, "clk_get pmc_plt_clk_3 failed: %d\n", ret);
548 return ret;
549 }
550
551 /* get speaker enable GPIO */
552 codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name);
553 if (!codec_dev)
554 return -EPROBE_DEFER;
555
556 if (quirk & BYT_CHT_ES8316_JD_INVERTED)
557 props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted");
558
559 if (cnt) {
560 ret = device_add_properties(codec_dev, props);
561 if (ret) {
562 put_device(codec_dev);
563 return ret;
564 }
565 }
566
567 devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios);
568 priv->speaker_en_gpio =
569 gpiod_get_index(codec_dev, "speaker-enable", 0,
570 /* see comment in byt_cht_es8316_resume */
571 GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
572 put_device(codec_dev);
573
574 if (IS_ERR(priv->speaker_en_gpio)) {
575 ret = PTR_ERR(priv->speaker_en_gpio);
576 switch (ret) {
577 case -ENOENT:
578 priv->speaker_en_gpio = NULL;
579 break;
580 default:
581 dev_err(dev, "get speaker GPIO failed: %d\n", ret);
582 fallthrough;
583 case -EPROBE_DEFER:
584 return ret;
585 }
586 }
587
588 snprintf(components_string, sizeof(components_string),
589 "cfg-spk:%s cfg-mic:%s",
590 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "1" : "2",
591 mic_name[BYT_CHT_ES8316_MAP(quirk)]);
592 byt_cht_es8316_card.components = components_string;
593 #if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
594 snprintf(long_name, sizeof(long_name), "bytcht-es8316-%s-spk-%s-mic",
595 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo",
596 mic_name[BYT_CHT_ES8316_MAP(quirk)]);
597 byt_cht_es8316_card.long_name = long_name;
598 #endif
599
600 /* register the soc card */
601 snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv);
602
603 ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card);
604 if (ret) {
605 gpiod_put(priv->speaker_en_gpio);
606 dev_err(dev, "snd_soc_register_card failed: %d\n", ret);
607 return ret;
608 }
609 platform_set_drvdata(pdev, &byt_cht_es8316_card);
610 return 0;
611 }
612
snd_byt_cht_es8316_mc_remove(struct platform_device * pdev)613 static int snd_byt_cht_es8316_mc_remove(struct platform_device *pdev)
614 {
615 struct snd_soc_card *card = platform_get_drvdata(pdev);
616 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
617
618 gpiod_put(priv->speaker_en_gpio);
619 return 0;
620 }
621
622 static struct platform_driver snd_byt_cht_es8316_mc_driver = {
623 .driver = {
624 .name = "bytcht_es8316",
625 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
626 .pm = &snd_soc_pm_ops,
627 #endif
628 },
629 .probe = snd_byt_cht_es8316_mc_probe,
630 .remove = snd_byt_cht_es8316_mc_remove,
631 };
632
633 module_platform_driver(snd_byt_cht_es8316_mc_driver);
634 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
635 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
636 MODULE_LICENSE("GPL v2");
637 MODULE_ALIAS("platform:bytcht_es8316");
638