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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
36struct byt_cht_es8316_private {
37 struct clk *mclk;
38 struct snd_soc_jack jack;
39 struct gpio_desc *speaker_en_gpio;
40 struct device *codec_dev;
41 bool speaker_en;
42};
43
44enum {
45 BYT_CHT_ES8316_INTMIC_IN1_MAP,
46 BYT_CHT_ES8316_INTMIC_IN2_MAP,
47};
48
49#define BYT_CHT_ES8316_MAP(quirk) ((quirk) & GENMASK(3, 0))
50#define BYT_CHT_ES8316_SSP0 BIT(16)
51#define BYT_CHT_ES8316_MONO_SPEAKER BIT(17)
52#define BYT_CHT_ES8316_JD_INVERTED BIT(18)
53
54static unsigned long quirk;
55
56static int quirk_override = -1;
57module_param_named(quirk, quirk_override, int, 0444);
58MODULE_PARM_DESC(quirk, "Board-specific quirk override");
59
60static void log_quirks(struct device *dev)
61{
62 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN1_MAP)
63 dev_info(dev, "quirk IN1_MAP enabled");
64 if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN2_MAP)
65 dev_info(dev, "quirk IN2_MAP enabled");
66 if (quirk & BYT_CHT_ES8316_SSP0)
67 dev_info(dev, "quirk SSP0 enabled");
68 if (quirk & BYT_CHT_ES8316_MONO_SPEAKER)
69 dev_info(dev, "quirk MONO_SPEAKER enabled\n");
70 if (quirk & BYT_CHT_ES8316_JD_INVERTED)
71 dev_info(dev, "quirk JD_INVERTED enabled\n");
72}
73
74static int byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
75 struct snd_kcontrol *kcontrol, int event)
76{
77 struct snd_soc_card *card = w->dapm->card;
78 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
79
80 if (SND_SOC_DAPM_EVENT_ON(event))
81 priv->speaker_en = true;
82 else
83 priv->speaker_en = false;
84
85 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
86
87 return 0;
88}
89
90static const struct snd_soc_dapm_widget byt_cht_es8316_widgets[] = {
91 SND_SOC_DAPM_SPK("Speaker", NULL),
92 SND_SOC_DAPM_HP("Headphone", NULL),
93 SND_SOC_DAPM_MIC("Headset Mic", NULL),
94 SND_SOC_DAPM_MIC("Internal Mic", NULL),
95
96 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
97 byt_cht_es8316_speaker_power_event,
98 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
99};
100
101static const struct snd_soc_dapm_route byt_cht_es8316_audio_map[] = {
102 {"Headphone", NULL, "HPOL"},
103 {"Headphone", NULL, "HPOR"},
104
105 /*
106 * There is no separate speaker output instead the speakers are muxed to
107 * the HP outputs. The mux is controlled by the "Speaker Power" supply.
108 */
109 {"Speaker", NULL, "HPOL"},
110 {"Speaker", NULL, "HPOR"},
111 {"Speaker", NULL, "Speaker Power"},
112};
113
114static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in1_map[] = {
115 {"MIC1", NULL, "Internal Mic"},
116 {"MIC2", NULL, "Headset Mic"},
117};
118
119static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in2_map[] = {
120 {"MIC2", NULL, "Internal Mic"},
121 {"MIC1", NULL, "Headset Mic"},
122};
123
124static const struct snd_soc_dapm_route byt_cht_es8316_ssp0_map[] = {
125 {"Playback", NULL, "ssp0 Tx"},
126 {"ssp0 Tx", NULL, "modem_out"},
127 {"modem_in", NULL, "ssp0 Rx"},
128 {"ssp0 Rx", NULL, "Capture"},
129};
130
131static const struct snd_soc_dapm_route byt_cht_es8316_ssp2_map[] = {
132 {"Playback", NULL, "ssp2 Tx"},
133 {"ssp2 Tx", NULL, "codec_out0"},
134 {"ssp2 Tx", NULL, "codec_out1"},
135 {"codec_in0", NULL, "ssp2 Rx" },
136 {"codec_in1", NULL, "ssp2 Rx" },
137 {"ssp2 Rx", NULL, "Capture"},
138};
139
140static const struct snd_kcontrol_new byt_cht_es8316_controls[] = {
141 SOC_DAPM_PIN_SWITCH("Speaker"),
142 SOC_DAPM_PIN_SWITCH("Headphone"),
143 SOC_DAPM_PIN_SWITCH("Headset Mic"),
144 SOC_DAPM_PIN_SWITCH("Internal Mic"),
145};
146
147static struct snd_soc_jack_pin byt_cht_es8316_jack_pins[] = {
148 {
149 .pin = "Headphone",
150 .mask = SND_JACK_HEADPHONE,
151 },
152 {
153 .pin = "Headset Mic",
154 .mask = SND_JACK_MICROPHONE,
155 },
156};
157
158static int byt_cht_es8316_init(struct snd_soc_pcm_runtime *runtime)
159{
160 struct snd_soc_component *codec = asoc_rtd_to_codec(runtime, 0)->component;
161 struct snd_soc_card *card = runtime->card;
162 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
163 const struct snd_soc_dapm_route *custom_map;
164 int num_routes;
165 int ret;
166
167 card->dapm.idle_bias_off = true;
168
169 switch (BYT_CHT_ES8316_MAP(quirk)) {
170 case BYT_CHT_ES8316_INTMIC_IN1_MAP:
171 default:
172 custom_map = byt_cht_es8316_intmic_in1_map;
173 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in1_map);
174 break;
175 case BYT_CHT_ES8316_INTMIC_IN2_MAP:
176 custom_map = byt_cht_es8316_intmic_in2_map;
177 num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in2_map);
178 break;
179 }
180 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
181 if (ret)
182 return ret;
183
184 if (quirk & BYT_CHT_ES8316_SSP0) {
185 custom_map = byt_cht_es8316_ssp0_map;
186 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp0_map);
187 } else {
188 custom_map = byt_cht_es8316_ssp2_map;
189 num_routes = ARRAY_SIZE(byt_cht_es8316_ssp2_map);
190 }
191 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
192 if (ret)
193 return ret;
194
195 /*
196 * The firmware might enable the clock at boot (this information
197 * may or may not be reflected in the enable clock register).
198 * To change the rate we must disable the clock first to cover these
199 * cases. Due to common clock framework restrictions that do not allow
200 * to disable a clock that has not been enabled, we need to enable
201 * the clock first.
202 */
203 ret = clk_prepare_enable(priv->mclk);
204 if (!ret)
205 clk_disable_unprepare(priv->mclk);
206
207 ret = clk_set_rate(priv->mclk, 19200000);
208 if (ret)
209 dev_err(card->dev, "unable to set MCLK rate\n");
210
211 ret = clk_prepare_enable(priv->mclk);
212 if (ret)
213 dev_err(card->dev, "unable to enable MCLK\n");
214
215 ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(runtime, 0), 0, 19200000,
216 SND_SOC_CLOCK_IN);
217 if (ret < 0) {
218 dev_err(card->dev, "can't set codec clock %d\n", ret);
219 return ret;
220 }
221
222 ret = snd_soc_card_jack_new_pins(card, "Headset",
223 SND_JACK_HEADSET | SND_JACK_BTN_0,
224 &priv->jack, byt_cht_es8316_jack_pins,
225 ARRAY_SIZE(byt_cht_es8316_jack_pins));
226 if (ret) {
227 dev_err(card->dev, "jack creation failed %d\n", ret);
228 return ret;
229 }
230
231 snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
232 snd_soc_component_set_jack(codec, &priv->jack, NULL);
233
234 return 0;
235}
236
237static int byt_cht_es8316_codec_fixup(struct snd_soc_pcm_runtime *rtd,
238 struct snd_pcm_hw_params *params)
239{
240 struct snd_interval *rate = hw_param_interval(params,
241 SNDRV_PCM_HW_PARAM_RATE);
242 struct snd_interval *channels = hw_param_interval(params,
243 SNDRV_PCM_HW_PARAM_CHANNELS);
244 int ret, bits;
245
246 /* The DSP will convert the FE rate to 48k, stereo */
247 rate->min = rate->max = 48000;
248 channels->min = channels->max = 2;
249
250 if (quirk & BYT_CHT_ES8316_SSP0) {
251 /* set SSP0 to 16-bit */
252 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
253 bits = 16;
254 } else {
255 /* set SSP2 to 24-bit */
256 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
257 bits = 24;
258 }
259
260 /*
261 * Default mode for SSP configuration is TDM 4 slot, override config
262 * with explicit setting to I2S 2ch 24-bit. The word length is set with
263 * dai_set_tdm_slot() since there is no other API exposed
264 */
265 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
266 SND_SOC_DAIFMT_I2S |
267 SND_SOC_DAIFMT_NB_NF |
268 SND_SOC_DAIFMT_BP_FP
269 );
270 if (ret < 0) {
271 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
272 return ret;
273 }
274
275 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits);
276 if (ret < 0) {
277 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
278 return ret;
279 }
280
281 return 0;
282}
283
284static int byt_cht_es8316_aif1_startup(struct snd_pcm_substream *substream)
285{
286 return snd_pcm_hw_constraint_single(substream->runtime,
287 SNDRV_PCM_HW_PARAM_RATE, 48000);
288}
289
290static const struct snd_soc_ops byt_cht_es8316_aif1_ops = {
291 .startup = byt_cht_es8316_aif1_startup,
292};
293
294SND_SOC_DAILINK_DEF(dummy,
295 DAILINK_COMP_ARRAY(COMP_DUMMY()));
296
297SND_SOC_DAILINK_DEF(media,
298 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
299
300SND_SOC_DAILINK_DEF(deepbuffer,
301 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
302
303SND_SOC_DAILINK_DEF(ssp2_port,
304 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
305SND_SOC_DAILINK_DEF(ssp2_codec,
306 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8316:00", "ES8316 HiFi")));
307
308SND_SOC_DAILINK_DEF(platform,
309 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
310
311static struct snd_soc_dai_link byt_cht_es8316_dais[] = {
312 [MERR_DPCM_AUDIO] = {
313 .name = "Audio Port",
314 .stream_name = "Audio",
315 .nonatomic = true,
316 .dynamic = 1,
317 .dpcm_playback = 1,
318 .dpcm_capture = 1,
319 .ops = &byt_cht_es8316_aif1_ops,
320 SND_SOC_DAILINK_REG(media, dummy, platform),
321 },
322
323 [MERR_DPCM_DEEP_BUFFER] = {
324 .name = "Deep-Buffer Audio Port",
325 .stream_name = "Deep-Buffer Audio",
326 .nonatomic = true,
327 .dynamic = 1,
328 .dpcm_playback = 1,
329 .ops = &byt_cht_es8316_aif1_ops,
330 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
331 },
332
333 /* back ends */
334 {
335 .name = "SSP2-Codec",
336 .id = 0,
337 .no_pcm = 1,
338 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
339 | SND_SOC_DAIFMT_CBC_CFC,
340 .be_hw_params_fixup = byt_cht_es8316_codec_fixup,
341 .dpcm_playback = 1,
342 .dpcm_capture = 1,
343 .init = byt_cht_es8316_init,
344 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
345 },
346};
347
348
349/* SoC card */
350static char codec_name[SND_ACPI_I2C_ID_LEN];
351#if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
352static char long_name[50]; /* = "bytcht-es8316-*-spk-*-mic" */
353#endif
354static char components_string[32]; /* = "cfg-spk:* cfg-mic:* */
355
356static int byt_cht_es8316_suspend(struct snd_soc_card *card)
357{
358 struct snd_soc_component *component;
359
360 for_each_card_components(card, component) {
361 if (!strcmp(component->name, codec_name)) {
362 dev_dbg(component->dev, "disabling jack detect before suspend\n");
363 snd_soc_component_set_jack(component, NULL, NULL);
364 break;
365 }
366 }
367
368 return 0;
369}
370
371static int byt_cht_es8316_resume(struct snd_soc_card *card)
372{
373 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
374 struct snd_soc_component *component;
375
376 for_each_card_components(card, component) {
377 if (!strcmp(component->name, codec_name)) {
378 dev_dbg(component->dev, "re-enabling jack detect after resume\n");
379 snd_soc_component_set_jack(component, &priv->jack, NULL);
380 break;
381 }
382 }
383
384 /*
385 * Some Cherry Trail boards with an ES8316 codec have a bug in their
386 * ACPI tables where the MSSL1680 touchscreen's _PS0 and _PS3 methods
387 * wrongly also set the speaker-enable GPIO to 1/0. Testing has shown
388 * that this really is a bug and the GPIO has no influence on the
389 * touchscreen at all.
390 *
391 * The silead.c touchscreen driver does not support runtime suspend, so
392 * the GPIO can only be changed underneath us during a system suspend.
393 * This resume() function runs from a pm complete() callback, and thus
394 * is guaranteed to run after the touchscreen driver/ACPI-subsys has
395 * brought the touchscreen back up again (and thus changed the GPIO).
396 *
397 * So to work around this we pass GPIOD_FLAGS_BIT_NONEXCLUSIVE when
398 * requesting the GPIO and we set its value here to undo any changes
399 * done by the touchscreen's broken _PS0 ACPI method.
400 */
401 gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en);
402
403 return 0;
404}
405
406/* use space before codec name to simplify card ID, and simplify driver name */
407#define SOF_CARD_NAME "bytcht es8316" /* card name will be 'sof-bytcht es8316' */
408#define SOF_DRIVER_NAME "SOF"
409
410#define CARD_NAME "bytcht-es8316"
411#define DRIVER_NAME NULL /* card name will be used for driver name */
412
413static struct snd_soc_card byt_cht_es8316_card = {
414 .owner = THIS_MODULE,
415 .dai_link = byt_cht_es8316_dais,
416 .num_links = ARRAY_SIZE(byt_cht_es8316_dais),
417 .dapm_widgets = byt_cht_es8316_widgets,
418 .num_dapm_widgets = ARRAY_SIZE(byt_cht_es8316_widgets),
419 .dapm_routes = byt_cht_es8316_audio_map,
420 .num_dapm_routes = ARRAY_SIZE(byt_cht_es8316_audio_map),
421 .controls = byt_cht_es8316_controls,
422 .num_controls = ARRAY_SIZE(byt_cht_es8316_controls),
423 .fully_routed = true,
424 .suspend_pre = byt_cht_es8316_suspend,
425 .resume_post = byt_cht_es8316_resume,
426};
427
428static const struct acpi_gpio_params first_gpio = { 0, 0, false };
429
430static const struct acpi_gpio_mapping byt_cht_es8316_gpios[] = {
431 { "speaker-enable-gpios", &first_gpio, 1 },
432 { },
433};
434
435/* Please keep this list alphabetically sorted */
436static const struct dmi_system_id byt_cht_es8316_quirk_table[] = {
437 { /* Irbis NB41 */
438 .matches = {
439 DMI_MATCH(DMI_SYS_VENDOR, "IRBIS"),
440 DMI_MATCH(DMI_PRODUCT_NAME, "NB41"),
441 },
442 .driver_data = (void *)(BYT_CHT_ES8316_SSP0
443 | BYT_CHT_ES8316_INTMIC_IN2_MAP
444 | BYT_CHT_ES8316_JD_INVERTED),
445 },
446 { /* Nanote UMPC-01 */
447 .matches = {
448 DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
449 DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
450 },
451 .driver_data = (void *)BYT_CHT_ES8316_INTMIC_IN1_MAP,
452 },
453 { /* Teclast X98 Plus II */
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"),
457 },
458 .driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN1_MAP
459 | BYT_CHT_ES8316_JD_INVERTED),
460 },
461 {}
462};
463
464static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
465{
466 struct device *dev = &pdev->dev;
467 static const char * const mic_name[] = { "in1", "in2" };
468 struct snd_soc_acpi_mach *mach = dev_get_platdata(dev);
469 struct property_entry props[MAX_NO_PROPS] = {};
470 struct byt_cht_es8316_private *priv;
471 const struct dmi_system_id *dmi_id;
472 struct fwnode_handle *fwnode;
473 const char *platform_name;
474 struct acpi_device *adev;
475 struct device *codec_dev;
476 bool sof_parent;
477 unsigned int cnt = 0;
478 int dai_index = 0;
479 int i;
480 int ret = 0;
481
482 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
483 if (!priv)
484 return -ENOMEM;
485
486 /* fix index of codec dai */
487 for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) {
488 if (!strcmp(byt_cht_es8316_dais[i].codecs->name,
489 "i2c-ESSX8316:00")) {
490 dai_index = i;
491 break;
492 }
493 }
494
495 /* fixup codec name based on HID */
496 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
497 if (adev) {
498 snprintf(codec_name, sizeof(codec_name),
499 "i2c-%s", acpi_dev_name(adev));
500 byt_cht_es8316_dais[dai_index].codecs->name = codec_name;
501 } else {
502 dev_err(dev, "Error cannot find '%s' dev\n", mach->id);
503 return -ENXIO;
504 }
505
506 codec_dev = acpi_get_first_physical_node(adev);
507 acpi_dev_put(adev);
508 if (!codec_dev)
509 return -EPROBE_DEFER;
510 priv->codec_dev = get_device(codec_dev);
511
512 /* override platform name, if required */
513 byt_cht_es8316_card.dev = dev;
514 platform_name = mach->mach_params.platform;
515
516 ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card,
517 platform_name);
518 if (ret) {
519 put_device(codec_dev);
520 return ret;
521 }
522
523 /* Check for BYTCR or other platform and setup quirks */
524 dmi_id = dmi_first_match(byt_cht_es8316_quirk_table);
525 if (dmi_id) {
526 quirk = (unsigned long)dmi_id->driver_data;
527 } else if (soc_intel_is_byt() &&
528 mach->mach_params.acpi_ipc_irq_index == 0) {
529 /* On BYTCR default to SSP0, internal-mic-in2-map, mono-spk */
530 quirk = BYT_CHT_ES8316_SSP0 | BYT_CHT_ES8316_INTMIC_IN2_MAP |
531 BYT_CHT_ES8316_MONO_SPEAKER;
532 } else {
533 /* Others default to internal-mic-in1-map, mono-speaker */
534 quirk = BYT_CHT_ES8316_INTMIC_IN1_MAP |
535 BYT_CHT_ES8316_MONO_SPEAKER;
536 }
537 if (quirk_override != -1) {
538 dev_info(dev, "Overriding quirk 0x%lx => 0x%x\n",
539 quirk, quirk_override);
540 quirk = quirk_override;
541 }
542 log_quirks(dev);
543
544 if (quirk & BYT_CHT_ES8316_SSP0)
545 byt_cht_es8316_dais[dai_index].cpus->dai_name = "ssp0-port";
546
547 /* get the clock */
548 priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
549 if (IS_ERR(priv->mclk)) {
550 put_device(codec_dev);
551 return dev_err_probe(dev, PTR_ERR(priv->mclk), "clk_get pmc_plt_clk_3 failed\n");
552 }
553
554 if (quirk & BYT_CHT_ES8316_JD_INVERTED)
555 props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted");
556
557 if (cnt) {
558 fwnode = fwnode_create_software_node(props, NULL);
559 if (IS_ERR(fwnode)) {
560 put_device(codec_dev);
561 return PTR_ERR(fwnode);
562 }
563
564 ret = device_add_software_node(codec_dev, to_software_node(fwnode));
565
566 fwnode_handle_put(fwnode);
567
568 if (ret) {
569 put_device(codec_dev);
570 return ret;
571 }
572 }
573
574 /* get speaker enable GPIO */
575 devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios);
576 priv->speaker_en_gpio =
577 gpiod_get_optional(codec_dev, "speaker-enable",
578 /* see comment in byt_cht_es8316_resume() */
579 GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
580 if (IS_ERR(priv->speaker_en_gpio)) {
581 ret = dev_err_probe(dev, PTR_ERR(priv->speaker_en_gpio),
582 "get speaker GPIO failed\n");
583 goto err_put_codec;
584 }
585
586 snprintf(components_string, sizeof(components_string),
587 "cfg-spk:%s cfg-mic:%s",
588 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "1" : "2",
589 mic_name[BYT_CHT_ES8316_MAP(quirk)]);
590 byt_cht_es8316_card.components = components_string;
591#if !IS_ENABLED(CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES)
592 snprintf(long_name, sizeof(long_name), "bytcht-es8316-%s-spk-%s-mic",
593 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo",
594 mic_name[BYT_CHT_ES8316_MAP(quirk)]);
595 byt_cht_es8316_card.long_name = long_name;
596#endif
597
598 sof_parent = snd_soc_acpi_sof_parent(dev);
599
600 /* set card and driver name */
601 if (sof_parent) {
602 byt_cht_es8316_card.name = SOF_CARD_NAME;
603 byt_cht_es8316_card.driver_name = SOF_DRIVER_NAME;
604 } else {
605 byt_cht_es8316_card.name = CARD_NAME;
606 byt_cht_es8316_card.driver_name = DRIVER_NAME;
607 }
608
609 /* set pm ops */
610 if (sof_parent)
611 dev->driver->pm = &snd_soc_pm_ops;
612
613 /* register the soc card */
614 snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv);
615
616 ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card);
617 if (ret) {
618 gpiod_put(priv->speaker_en_gpio);
619 dev_err(dev, "snd_soc_register_card failed: %d\n", ret);
620 goto err_put_codec;
621 }
622 platform_set_drvdata(pdev, &byt_cht_es8316_card);
623 return 0;
624
625err_put_codec:
626 device_remove_software_node(priv->codec_dev);
627 put_device(priv->codec_dev);
628 return ret;
629}
630
631static int snd_byt_cht_es8316_mc_remove(struct platform_device *pdev)
632{
633 struct snd_soc_card *card = platform_get_drvdata(pdev);
634 struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card);
635
636 gpiod_put(priv->speaker_en_gpio);
637 device_remove_software_node(priv->codec_dev);
638 put_device(priv->codec_dev);
639 return 0;
640}
641
642static struct platform_driver snd_byt_cht_es8316_mc_driver = {
643 .driver = {
644 .name = "bytcht_es8316",
645 },
646 .probe = snd_byt_cht_es8316_mc_probe,
647 .remove = snd_byt_cht_es8316_mc_remove,
648};
649
650module_platform_driver(snd_byt_cht_es8316_mc_driver);
651MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
652MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
653MODULE_LICENSE("GPL v2");
654MODULE_ALIAS("platform:bytcht_es8316");