1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * bytcr_wm5102.c - ASoc Machine driver for Intel Baytrail platforms with a
4 * Wolfson Microelectronics WM5102 codec
5 *
6 * Copyright (C) 2020 Hans de Goede <hdegoede@redhat.com>
7 * Loosely based on bytcr_rt5640.c which is:
8 * Copyright (C) 2014-2020 Intel Corp
9 * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
10 */
11
12 #include <linux/acpi.h>
13 #include <linux/bitfield.h>
14 #include <linux/clk.h>
15 #include <linux/device.h>
16 #include <linux/init.h>
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/platform_data/x86/soc.h>
20 #include <linux/platform_device.h>
21 #include <linux/slab.h>
22 #include <linux/spi/spi.h>
23 #include <sound/jack.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/soc-acpi.h>
28 #include "../../codecs/wm5102.h"
29 #include "../atom/sst-atom-controls.h"
30
31 #define WM5102_MAX_SYSCLK_4K 49152000 /* max sysclk for 4K family */
32 #define WM5102_MAX_SYSCLK_11025 45158400 /* max sysclk for 11.025K family */
33
34 struct byt_wm5102_private {
35 struct snd_soc_jack jack;
36 struct clk *mclk;
37 struct gpio_desc *spkvdd_en_gpio;
38 int mclk_freq;
39 };
40
41 #define BYT_WM5102_IN_MAP GENMASK(3, 0)
42 #define BYT_WM5102_OUT_MAP GENMASK(7, 4)
43 #define BYT_WM5102_SSP2 BIT(16)
44 #define BYT_WM5102_MCLK_19_2MHZ BIT(17)
45
46 enum {
47 BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L,
48 BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L,
49 };
50
51 /* Note these values are pre-shifted for easy use of setting quirks */
52 enum {
53 BYT_WM5102_SPK_SPK_MAP = FIELD_PREP_CONST(BYT_WM5102_OUT_MAP, 0),
54 BYT_WM5102_SPK_HPOUT2_MAP = FIELD_PREP_CONST(BYT_WM5102_OUT_MAP, 1),
55 };
56
57 static unsigned long quirk;
58
59 static int quirk_override = -1;
60 module_param_named(quirk, quirk_override, int, 0444);
61 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
62
log_quirks(struct device * dev)63 static void log_quirks(struct device *dev)
64 {
65 switch (quirk & BYT_WM5102_IN_MAP) {
66 case BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L:
67 dev_info_once(dev, "quirk INTMIC_IN3L_HSMIC_IN1L enabled\n");
68 break;
69 case BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L:
70 dev_info_once(dev, "quirk INTMIC_IN1L_HSMIC_IN2L enabled\n");
71 break;
72 default:
73 dev_warn_once(dev, "quirk sets invalid input map: 0x%lx, defaulting to INTMIC_IN3L_HSMIC_IN1L\n",
74 quirk & BYT_WM5102_IN_MAP);
75 quirk &= ~BYT_WM5102_IN_MAP;
76 quirk |= BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L;
77 break;
78 }
79 switch (quirk & BYT_WM5102_OUT_MAP) {
80 case BYT_WM5102_SPK_SPK_MAP:
81 dev_info_once(dev, "quirk SPK_SPK_MAP enabled\n");
82 break;
83 case BYT_WM5102_SPK_HPOUT2_MAP:
84 dev_info_once(dev, "quirk SPK_HPOUT2_MAP enabled\n");
85 break;
86 default:
87 dev_warn_once(dev, "quirk sets invalid output map: 0x%lx, defaulting to SPK_SPK_MAP\n",
88 quirk & BYT_WM5102_OUT_MAP);
89 quirk &= ~BYT_WM5102_OUT_MAP;
90 quirk |= BYT_WM5102_SPK_SPK_MAP;
91 break;
92 }
93 if (quirk & BYT_WM5102_SSP2)
94 dev_info_once(dev, "quirk SSP2 enabled");
95 if (quirk & BYT_WM5102_MCLK_19_2MHZ)
96 dev_info_once(dev, "quirk MCLK 19.2MHz enabled");
97 }
98
byt_wm5102_spkvdd_power_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)99 static int byt_wm5102_spkvdd_power_event(struct snd_soc_dapm_widget *w,
100 struct snd_kcontrol *kcontrol, int event)
101 {
102 struct snd_soc_card *card = w->dapm->card;
103 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
104
105 gpiod_set_value_cansleep(priv->spkvdd_en_gpio,
106 !!SND_SOC_DAPM_EVENT_ON(event));
107
108 return 0;
109 }
110
byt_wm5102_prepare_and_enable_pll1(struct snd_soc_dai * codec_dai,int rate)111 static int byt_wm5102_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai, int rate)
112 {
113 struct snd_soc_component *codec_component = codec_dai->component;
114 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(codec_component->card);
115 int sr_mult = ((rate % 4000) == 0) ?
116 (WM5102_MAX_SYSCLK_4K / rate) :
117 (WM5102_MAX_SYSCLK_11025 / rate);
118 int ret;
119
120 /* Reset FLL1 */
121 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0);
122 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
123
124 /* Configure the FLL1 PLL before selecting it */
125 ret = snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_CLK_SRC_MCLK1,
126 priv->mclk_freq, rate * sr_mult);
127 if (ret) {
128 dev_err(codec_component->dev, "Error setting PLL: %d\n", ret);
129 return ret;
130 }
131
132 ret = snd_soc_component_set_sysclk(codec_component, ARIZONA_CLK_SYSCLK,
133 ARIZONA_CLK_SRC_FLL1, rate * sr_mult,
134 SND_SOC_CLOCK_IN);
135 if (ret) {
136 dev_err(codec_component->dev, "Error setting SYSCLK: %d\n", ret);
137 return ret;
138 }
139
140 ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK,
141 rate * 512, SND_SOC_CLOCK_IN);
142 if (ret) {
143 dev_err(codec_component->dev, "Error setting clock: %d\n", ret);
144 return ret;
145 }
146
147 return 0;
148 }
149
platform_clock_control(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)150 static int platform_clock_control(struct snd_soc_dapm_widget *w,
151 struct snd_kcontrol *k, int event)
152 {
153 struct snd_soc_dapm_context *dapm = w->dapm;
154 struct snd_soc_card *card = dapm->card;
155 struct snd_soc_dai *codec_dai;
156 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
157 int ret;
158
159 codec_dai = snd_soc_card_get_codec_dai(card, "wm5102-aif1");
160 if (!codec_dai) {
161 dev_err(card->dev, "Error codec DAI not found\n");
162 return -EIO;
163 }
164
165 if (SND_SOC_DAPM_EVENT_ON(event)) {
166 ret = clk_prepare_enable(priv->mclk);
167 if (ret) {
168 dev_err(card->dev, "Error enabling MCLK: %d\n", ret);
169 return ret;
170 }
171 ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, 48000);
172 if (ret) {
173 dev_err(card->dev, "Error setting codec sysclk: %d\n", ret);
174 return ret;
175 }
176 } else {
177 /*
178 * The WM5102 has a separate 32KHz clock for jack-detect
179 * so we can disable the PLL, followed by disabling the
180 * platform clock which is the source-clock for the PLL.
181 */
182 snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
183 clk_disable_unprepare(priv->mclk);
184 }
185
186 return 0;
187 }
188
189 static const struct snd_soc_dapm_widget byt_wm5102_widgets[] = {
190 SND_SOC_DAPM_HP("Headphone", NULL),
191 SND_SOC_DAPM_MIC("Headset Mic", NULL),
192 SND_SOC_DAPM_MIC("Internal Mic", NULL),
193 SND_SOC_DAPM_SPK("Speaker", NULL),
194 SND_SOC_DAPM_LINE("Line Out", NULL),
195 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
196 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
197 SND_SOC_DAPM_POST_PMD),
198 SND_SOC_DAPM_SUPPLY("Speaker VDD", SND_SOC_NOPM, 0, 0,
199 byt_wm5102_spkvdd_power_event,
200 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
201 };
202
203 static const struct snd_soc_dapm_route byt_wm5102_audio_map[] = {
204 {"Headphone", NULL, "Platform Clock"},
205 {"Headset Mic", NULL, "Platform Clock"},
206 {"Internal Mic", NULL, "Platform Clock"},
207 {"Speaker", NULL, "Platform Clock"},
208 {"Speaker", NULL, "Speaker VDD"},
209
210 {"Headphone", NULL, "HPOUT1L"},
211 {"Headphone", NULL, "HPOUT1R"},
212
213 /*
214 * The Headset Mix uses MICBIAS1 or 2 depending on if a CTIA/OMTP Headset
215 * is connected, as the MICBIAS is applied after the CTIA/OMTP cross-switch.
216 */
217 {"Headset Mic", NULL, "MICBIAS1"},
218 {"Headset Mic", NULL, "MICBIAS2"},
219 {"Internal Mic", NULL, "MICBIAS3"},
220 };
221
222 static const struct snd_soc_dapm_route bytcr_wm5102_ssp0_map[] = {
223 {"AIF1 Playback", NULL, "ssp0 Tx"},
224 {"ssp0 Tx", NULL, "modem_out"},
225 {"modem_in", NULL, "ssp0 Rx"},
226 {"ssp0 Rx", NULL, "AIF1 Capture"},
227 };
228
229 static const struct snd_soc_dapm_route bytcr_wm5102_ssp2_map[] = {
230 {"AIF1 Playback", NULL, "ssp2 Tx"},
231 {"ssp2 Tx", NULL, "codec_out0"},
232 {"ssp2 Tx", NULL, "codec_out1"},
233 {"codec_in0", NULL, "ssp2 Rx"},
234 {"codec_in1", NULL, "ssp2 Rx"},
235 {"ssp2 Rx", NULL, "AIF1 Capture"},
236 };
237
238 static const struct snd_soc_dapm_route byt_wm5102_spk_spk_map[] = {
239 {"Speaker", NULL, "SPKOUTLP"},
240 {"Speaker", NULL, "SPKOUTLN"},
241 {"Speaker", NULL, "SPKOUTRP"},
242 {"Speaker", NULL, "SPKOUTRN"},
243 };
244
245 static const struct snd_soc_dapm_route byt_wm5102_spk_hpout2_map[] = {
246 {"Speaker", NULL, "HPOUT2L"},
247 {"Speaker", NULL, "HPOUT2R"},
248 };
249
250 static const struct snd_soc_dapm_route byt_wm5102_intmic_in3l_hsmic_in1l_map[] = {
251 {"IN3L", NULL, "Internal Mic"},
252 {"IN1L", NULL, "Headset Mic"},
253 };
254
255 static const struct snd_soc_dapm_route byt_wm5102_intmic_in1l_hsmic_in2l_map[] = {
256 {"IN1L", NULL, "Internal Mic"},
257 {"IN2L", NULL, "Headset Mic"},
258 };
259
260 static const struct snd_kcontrol_new byt_wm5102_controls[] = {
261 SOC_DAPM_PIN_SWITCH("Headphone"),
262 SOC_DAPM_PIN_SWITCH("Headset Mic"),
263 SOC_DAPM_PIN_SWITCH("Internal Mic"),
264 SOC_DAPM_PIN_SWITCH("Speaker"),
265 SOC_DAPM_PIN_SWITCH("Line Out"),
266 };
267
268 static struct snd_soc_jack_pin byt_wm5102_pins[] = {
269 {
270 .pin = "Headphone",
271 .mask = SND_JACK_HEADPHONE,
272 },
273 {
274 .pin = "Headset Mic",
275 .mask = SND_JACK_MICROPHONE,
276 },
277 {
278 .pin = "Line Out",
279 .mask = SND_JACK_LINEOUT,
280 },
281 };
282
byt_wm5102_init(struct snd_soc_pcm_runtime * runtime)283 static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
284 {
285 struct snd_soc_card *card = runtime->card;
286 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
287 struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component;
288 const struct snd_soc_dapm_route *custom_map = NULL;
289 int ret, jack_type, num_routes = 0;
290
291 card->dapm.idle_bias_off = true;
292
293 ret = snd_soc_add_card_controls(card, byt_wm5102_controls,
294 ARRAY_SIZE(byt_wm5102_controls));
295 if (ret) {
296 dev_err(card->dev, "Error adding card controls: %d\n", ret);
297 return ret;
298 }
299
300 switch (quirk & BYT_WM5102_IN_MAP) {
301 case BYT_WM5102_INTMIC_IN3L_HSMIC_IN1L:
302 custom_map = byt_wm5102_intmic_in3l_hsmic_in1l_map;
303 num_routes = ARRAY_SIZE(byt_wm5102_intmic_in3l_hsmic_in1l_map);
304 break;
305 case BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L:
306 custom_map = byt_wm5102_intmic_in1l_hsmic_in2l_map;
307 num_routes = ARRAY_SIZE(byt_wm5102_intmic_in1l_hsmic_in2l_map);
308 break;
309 }
310 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
311 if (ret)
312 return ret;
313
314 switch (quirk & BYT_WM5102_OUT_MAP) {
315 case BYT_WM5102_SPK_SPK_MAP:
316 custom_map = byt_wm5102_spk_spk_map;
317 num_routes = ARRAY_SIZE(byt_wm5102_spk_spk_map);
318 break;
319 case BYT_WM5102_SPK_HPOUT2_MAP:
320 custom_map = byt_wm5102_spk_hpout2_map;
321 num_routes = ARRAY_SIZE(byt_wm5102_spk_hpout2_map);
322 break;
323 }
324 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
325 if (ret)
326 return ret;
327
328 if (quirk & BYT_WM5102_SSP2) {
329 custom_map = bytcr_wm5102_ssp2_map;
330 num_routes = ARRAY_SIZE(bytcr_wm5102_ssp2_map);
331 } else {
332 custom_map = bytcr_wm5102_ssp0_map;
333 num_routes = ARRAY_SIZE(bytcr_wm5102_ssp0_map);
334 }
335 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
336 if (ret)
337 return ret;
338
339 if (quirk & BYT_WM5102_MCLK_19_2MHZ)
340 priv->mclk_freq = 19200000;
341 else
342 priv->mclk_freq = 25000000;
343
344 /*
345 * The firmware might enable the clock at boot (this information
346 * may or may not be reflected in the enable clock register).
347 * To change the rate we must disable the clock first to cover these
348 * cases. Due to common clock framework restrictions that do not allow
349 * to disable a clock that has not been enabled, we need to enable
350 * the clock first.
351 */
352 ret = clk_prepare_enable(priv->mclk);
353 if (!ret)
354 clk_disable_unprepare(priv->mclk);
355
356 ret = clk_set_rate(priv->mclk, priv->mclk_freq);
357 if (ret) {
358 dev_err(card->dev, "Error setting MCLK rate: %d\n", ret);
359 return ret;
360 }
361
362 jack_type = ARIZONA_JACK_MASK | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
363 SND_JACK_BTN_2 | SND_JACK_BTN_3;
364 ret = snd_soc_card_jack_new_pins(card, "Headset", jack_type,
365 &priv->jack, byt_wm5102_pins,
366 ARRAY_SIZE(byt_wm5102_pins));
367 if (ret) {
368 dev_err(card->dev, "Error creating jack: %d\n", ret);
369 return ret;
370 }
371
372 snd_soc_component_set_jack(component, &priv->jack, NULL);
373
374 return 0;
375 }
376
byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)377 static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd,
378 struct snd_pcm_hw_params *params)
379 {
380 struct snd_interval *rate = hw_param_interval(params,
381 SNDRV_PCM_HW_PARAM_RATE);
382 struct snd_interval *channels = hw_param_interval(params,
383 SNDRV_PCM_HW_PARAM_CHANNELS);
384 int ret, bits;
385
386 /* The DSP will convert the FE rate to 48k, stereo */
387 rate->min = 48000;
388 rate->max = 48000;
389 channels->min = 2;
390 channels->max = 2;
391
392 if (quirk & BYT_WM5102_SSP2) {
393 /* set SSP2 to 24-bit */
394 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
395 bits = 24;
396 } else {
397 /* set SSP0 to 16-bit */
398 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
399 bits = 16;
400 }
401
402 /*
403 * Default mode for SSP configuration is TDM 4 slot, override config
404 * with explicit setting to I2S 2ch 16-bit. The word length is set with
405 * dai_set_tdm_slot() since there is no other API exposed
406 */
407 ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0),
408 SND_SOC_DAIFMT_I2S |
409 SND_SOC_DAIFMT_NB_NF |
410 SND_SOC_DAIFMT_BP_FP);
411 if (ret) {
412 dev_err(rtd->dev, "Error setting format to I2S: %d\n", ret);
413 return ret;
414 }
415
416 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits);
417 if (ret) {
418 dev_err(rtd->dev, "Error setting I2S config: %d\n", ret);
419 return ret;
420 }
421
422 return 0;
423 }
424
byt_wm5102_aif1_startup(struct snd_pcm_substream * substream)425 static int byt_wm5102_aif1_startup(struct snd_pcm_substream *substream)
426 {
427 return snd_pcm_hw_constraint_single(substream->runtime,
428 SNDRV_PCM_HW_PARAM_RATE, 48000);
429 }
430
431 static const struct snd_soc_ops byt_wm5102_aif1_ops = {
432 .startup = byt_wm5102_aif1_startup,
433 };
434
435 SND_SOC_DAILINK_DEF(dummy,
436 DAILINK_COMP_ARRAY(COMP_DUMMY()));
437
438 SND_SOC_DAILINK_DEF(media,
439 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
440
441 SND_SOC_DAILINK_DEF(deepbuffer,
442 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
443
444 SND_SOC_DAILINK_DEF(ssp0_port,
445 DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
446
447 SND_SOC_DAILINK_DEF(ssp0_codec,
448 DAILINK_COMP_ARRAY(COMP_CODEC(
449 /*
450 * Note there is no need to overwrite the codec-name as is done in
451 * other bytcr machine drivers, because the codec is a MFD child-dev.
452 */
453 "wm5102-codec",
454 "wm5102-aif1")));
455
456 SND_SOC_DAILINK_DEF(platform,
457 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
458
459 static struct snd_soc_dai_link byt_wm5102_dais[] = {
460 [MERR_DPCM_AUDIO] = {
461 .name = "Baytrail Audio Port",
462 .stream_name = "Baytrail Audio",
463 .nonatomic = true,
464 .dynamic = 1,
465 .dpcm_playback = 1,
466 .dpcm_capture = 1,
467 .ops = &byt_wm5102_aif1_ops,
468 SND_SOC_DAILINK_REG(media, dummy, platform),
469
470 },
471 [MERR_DPCM_DEEP_BUFFER] = {
472 .name = "Deep-Buffer Audio Port",
473 .stream_name = "Deep-Buffer Audio",
474 .nonatomic = true,
475 .dynamic = 1,
476 .dpcm_playback = 1,
477 .ops = &byt_wm5102_aif1_ops,
478 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
479 },
480 /* back ends */
481 {
482 /*
483 * This dailink is updated dynamically to point to SSP0 or SSP2.
484 * Yet its name is always kept as "SSP2-Codec" because the SOF
485 * tplg files hardcode "SSP2-Codec" even in byt-foo-ssp0.tplg.
486 */
487 .name = "SSP2-Codec",
488 .id = 0,
489 .no_pcm = 1,
490 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
491 | SND_SOC_DAIFMT_CBC_CFC,
492 .be_hw_params_fixup = byt_wm5102_codec_fixup,
493 .dpcm_playback = 1,
494 .dpcm_capture = 1,
495 .init = byt_wm5102_init,
496 SND_SOC_DAILINK_REG(ssp0_port, ssp0_codec, platform),
497 },
498 };
499
500 /* use space before codec name to simplify card ID, and simplify driver name */
501 #define SOF_CARD_NAME "bytcht wm5102" /* card name will be 'sof-bytcht wm5102' */
502 #define SOF_DRIVER_NAME "SOF"
503
504 #define CARD_NAME "bytcr-wm5102"
505 #define DRIVER_NAME NULL /* card name will be used for driver name */
506
507 /* SoC card */
508 static struct snd_soc_card byt_wm5102_card = {
509 .owner = THIS_MODULE,
510 .dai_link = byt_wm5102_dais,
511 .num_links = ARRAY_SIZE(byt_wm5102_dais),
512 .dapm_widgets = byt_wm5102_widgets,
513 .num_dapm_widgets = ARRAY_SIZE(byt_wm5102_widgets),
514 .dapm_routes = byt_wm5102_audio_map,
515 .num_dapm_routes = ARRAY_SIZE(byt_wm5102_audio_map),
516 .fully_routed = true,
517 };
518
519 static char byt_wm5102_components[64]; /* = "cfg-spk:* cfg-int-mic:* cfg-hs-mic:* ..." */
520
snd_byt_wm5102_mc_probe(struct platform_device * pdev)521 static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
522 {
523 static const char * const out_map_name[] = { "spk", "hpout2" };
524 static const char * const intmic_map_name[] = { "in3l", "in1l" };
525 static const char * const hsmic_map_name[] = { "in1l", "in2l" };
526 char codec_name[SND_ACPI_I2C_ID_LEN];
527 struct device *dev = &pdev->dev;
528 struct byt_wm5102_private *priv;
529 struct snd_soc_acpi_mach *mach;
530 const char *platform_name;
531 struct acpi_device *adev;
532 struct device *codec_dev;
533 int dai_index = 0;
534 bool sof_parent;
535 int i, ret;
536
537 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
538 if (!priv)
539 return -ENOMEM;
540
541 /* Get MCLK */
542 priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
543 if (IS_ERR(priv->mclk))
544 return dev_err_probe(dev, PTR_ERR(priv->mclk), "getting pmc_plt_clk_3\n");
545
546 /*
547 * Get speaker VDD enable GPIO:
548 * 1. Get codec-device-name
549 * 2. Get codec-device
550 * 3. Get GPIO from codec-device
551 */
552 mach = dev->platform_data;
553 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
554 if (adev) {
555 snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev));
556 acpi_dev_put(adev);
557 } else {
558 /* Special case for when the codec is missing from the DSTD */
559 strscpy(codec_name, "spi1.0", sizeof(codec_name));
560 }
561
562 codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name);
563 if (!codec_dev)
564 return -EPROBE_DEFER;
565
566 /* Note no devm_ here since we call gpiod_get on codec_dev rather then dev */
567 priv->spkvdd_en_gpio = gpiod_get(codec_dev, "wlf,spkvdd-ena", GPIOD_OUT_LOW);
568 put_device(codec_dev);
569
570 if (IS_ERR(priv->spkvdd_en_gpio)) {
571 ret = PTR_ERR(priv->spkvdd_en_gpio);
572 /*
573 * The spkvdd gpio-lookup is registered by: drivers/mfd/arizona-spi.c,
574 * so -ENOENT means that arizona-spi hasn't probed yet.
575 */
576 if (ret == -ENOENT)
577 ret = -EPROBE_DEFER;
578
579 return dev_err_probe(dev, ret, "getting spkvdd-GPIO\n");
580 }
581
582 if (soc_intel_is_cht()) {
583 /*
584 * CHT always uses SSP2 and 19.2 MHz; and
585 * the one currently supported CHT design uses HPOUT2 as
586 * speaker output and has the intmic on IN1L + hsmic on IN2L.
587 */
588 quirk = BYT_WM5102_SSP2 | BYT_WM5102_MCLK_19_2MHZ |
589 BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L |
590 BYT_WM5102_SPK_HPOUT2_MAP;
591 }
592 if (quirk_override != -1) {
593 dev_info_once(dev, "Overriding quirk 0x%lx => 0x%x\n",
594 quirk, quirk_override);
595 quirk = quirk_override;
596 }
597 log_quirks(dev);
598
599 snprintf(byt_wm5102_components, sizeof(byt_wm5102_components),
600 "cfg-spk:%s cfg-intmic:%s cfg-hsmic:%s",
601 out_map_name[FIELD_GET(BYT_WM5102_OUT_MAP, quirk)],
602 intmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)],
603 hsmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)]);
604 byt_wm5102_card.components = byt_wm5102_components;
605
606 /* find index of codec dai */
607 for (i = 0; i < ARRAY_SIZE(byt_wm5102_dais); i++) {
608 if (byt_wm5102_dais[i].num_codecs &&
609 !strcmp(byt_wm5102_dais[i].codecs->name,
610 "wm5102-codec")) {
611 dai_index = i;
612 break;
613 }
614 }
615
616 /* override platform name, if required */
617 byt_wm5102_card.dev = dev;
618 platform_name = mach->mach_params.platform;
619 ret = snd_soc_fixup_dai_links_platform_name(&byt_wm5102_card, platform_name);
620 if (ret)
621 goto out_put_gpio;
622
623 /* override SSP port, if required */
624 if (quirk & BYT_WM5102_SSP2)
625 byt_wm5102_dais[dai_index].cpus->dai_name = "ssp2-port";
626
627 /* set card and driver name and pm-ops */
628 sof_parent = snd_soc_acpi_sof_parent(dev);
629 if (sof_parent) {
630 byt_wm5102_card.name = SOF_CARD_NAME;
631 byt_wm5102_card.driver_name = SOF_DRIVER_NAME;
632 dev->driver->pm = &snd_soc_pm_ops;
633 } else {
634 byt_wm5102_card.name = CARD_NAME;
635 byt_wm5102_card.driver_name = DRIVER_NAME;
636 }
637
638 snd_soc_card_set_drvdata(&byt_wm5102_card, priv);
639 ret = devm_snd_soc_register_card(dev, &byt_wm5102_card);
640 if (ret) {
641 dev_err_probe(dev, ret, "registering card\n");
642 goto out_put_gpio;
643 }
644
645 platform_set_drvdata(pdev, &byt_wm5102_card);
646 return 0;
647
648 out_put_gpio:
649 gpiod_put(priv->spkvdd_en_gpio);
650 return ret;
651 }
652
snd_byt_wm5102_mc_remove(struct platform_device * pdev)653 static void snd_byt_wm5102_mc_remove(struct platform_device *pdev)
654 {
655 struct snd_soc_card *card = platform_get_drvdata(pdev);
656 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
657
658 gpiod_put(priv->spkvdd_en_gpio);
659 }
660
661 static struct platform_driver snd_byt_wm5102_mc_driver = {
662 .driver = {
663 .name = "bytcr_wm5102",
664 },
665 .probe = snd_byt_wm5102_mc_probe,
666 .remove = snd_byt_wm5102_mc_remove,
667 };
668
669 module_platform_driver(snd_byt_wm5102_mc_driver);
670
671 MODULE_DESCRIPTION("ASoC Baytrail with WM5102 codec machine driver");
672 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
673 MODULE_LICENSE("GPL v2");
674 MODULE_ALIAS("platform:bytcr_wm5102");
675