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
34struct 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
46enum {
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 */
52enum {
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
57static unsigned long quirk;
58
59static int quirk_override = -1;
60module_param_named(quirk, quirk_override, int, 0444);
61MODULE_PARM_DESC(quirk, "Board-specific quirk override");
62
63static 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
99static 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 = snd_soc_dapm_to_card(dapm: w->dapm);
103 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
104
105 gpiod_set_value_cansleep(desc: priv->spkvdd_en_gpio,
106 value: !!SND_SOC_DAPM_EVENT_ON(event));
107
108 return 0;
109}
110
111static 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(card: 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(dai: codec_dai, WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, freq_in: 0, freq_out: 0);
122 snd_soc_dai_set_pll(dai: codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, freq_in: 0, freq_out: 0);
123
124 /* Configure the FLL1 PLL before selecting it */
125 ret = snd_soc_dai_set_pll(dai: codec_dai, WM5102_FLL1, ARIZONA_CLK_SRC_MCLK1,
126 freq_in: priv->mclk_freq, freq_out: 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(component: codec_component, ARIZONA_CLK_SYSCLK,
133 ARIZONA_CLK_SRC_FLL1, freq: 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(dai: codec_dai, ARIZONA_CLK_SYSCLK,
141 freq: 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
150static int platform_clock_control(struct snd_soc_dapm_widget *w,
151 struct snd_kcontrol *k, int event)
152{
153 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm: w->dapm);
154 struct snd_soc_dai *codec_dai;
155 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
156 int ret;
157
158 codec_dai = snd_soc_card_get_codec_dai(card, dai_name: "wm5102-aif1");
159 if (!codec_dai) {
160 dev_err(card->dev, "Error codec DAI not found\n");
161 return -EIO;
162 }
163
164 if (SND_SOC_DAPM_EVENT_ON(event)) {
165 ret = clk_prepare_enable(clk: priv->mclk);
166 if (ret) {
167 dev_err(card->dev, "Error enabling MCLK: %d\n", ret);
168 return ret;
169 }
170 ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, rate: 48000);
171 if (ret) {
172 dev_err(card->dev, "Error setting codec sysclk: %d\n", ret);
173 return ret;
174 }
175 } else {
176 /*
177 * The WM5102 has a separate 32KHz clock for jack-detect
178 * so we can disable the PLL, followed by disabling the
179 * platform clock which is the source-clock for the PLL.
180 */
181 snd_soc_dai_set_pll(dai: codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, freq_in: 0, freq_out: 0);
182 clk_disable_unprepare(clk: priv->mclk);
183 }
184
185 return 0;
186}
187
188static const struct snd_soc_dapm_widget byt_wm5102_widgets[] = {
189 SND_SOC_DAPM_HP("Headphone", NULL),
190 SND_SOC_DAPM_MIC("Headset Mic", NULL),
191 SND_SOC_DAPM_MIC("Internal Mic", NULL),
192 SND_SOC_DAPM_SPK("Speaker", NULL),
193 SND_SOC_DAPM_LINE("Line Out", NULL),
194 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
195 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
196 SND_SOC_DAPM_POST_PMD),
197 SND_SOC_DAPM_SUPPLY("Speaker VDD", SND_SOC_NOPM, 0, 0,
198 byt_wm5102_spkvdd_power_event,
199 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
200};
201
202static const struct snd_soc_dapm_route byt_wm5102_audio_map[] = {
203 {"Headphone", NULL, "Platform Clock"},
204 {"Headset Mic", NULL, "Platform Clock"},
205 {"Internal Mic", NULL, "Platform Clock"},
206 {"Speaker", NULL, "Platform Clock"},
207 {"Speaker", NULL, "Speaker VDD"},
208
209 {"Headphone", NULL, "HPOUT1L"},
210 {"Headphone", NULL, "HPOUT1R"},
211
212 /*
213 * The Headset Mix uses MICBIAS1 or 2 depending on if a CTIA/OMTP Headset
214 * is connected, as the MICBIAS is applied after the CTIA/OMTP cross-switch.
215 */
216 {"Headset Mic", NULL, "MICBIAS1"},
217 {"Headset Mic", NULL, "MICBIAS2"},
218 {"Internal Mic", NULL, "MICBIAS3"},
219};
220
221static const struct snd_soc_dapm_route bytcr_wm5102_ssp0_map[] = {
222 {"AIF1 Playback", NULL, "ssp0 Tx"},
223 {"ssp0 Tx", NULL, "modem_out"},
224 {"modem_in", NULL, "ssp0 Rx"},
225 {"ssp0 Rx", NULL, "AIF1 Capture"},
226};
227
228static const struct snd_soc_dapm_route bytcr_wm5102_ssp2_map[] = {
229 {"AIF1 Playback", NULL, "ssp2 Tx"},
230 {"ssp2 Tx", NULL, "codec_out0"},
231 {"ssp2 Tx", NULL, "codec_out1"},
232 {"codec_in0", NULL, "ssp2 Rx"},
233 {"codec_in1", NULL, "ssp2 Rx"},
234 {"ssp2 Rx", NULL, "AIF1 Capture"},
235};
236
237static const struct snd_soc_dapm_route byt_wm5102_spk_spk_map[] = {
238 {"Speaker", NULL, "SPKOUTLP"},
239 {"Speaker", NULL, "SPKOUTLN"},
240 {"Speaker", NULL, "SPKOUTRP"},
241 {"Speaker", NULL, "SPKOUTRN"},
242};
243
244static const struct snd_soc_dapm_route byt_wm5102_spk_hpout2_map[] = {
245 {"Speaker", NULL, "HPOUT2L"},
246 {"Speaker", NULL, "HPOUT2R"},
247};
248
249static const struct snd_soc_dapm_route byt_wm5102_intmic_in3l_hsmic_in1l_map[] = {
250 {"IN3L", NULL, "Internal Mic"},
251 {"IN1L", NULL, "Headset Mic"},
252};
253
254static const struct snd_soc_dapm_route byt_wm5102_intmic_in1l_hsmic_in2l_map[] = {
255 {"IN1L", NULL, "Internal Mic"},
256 {"IN2L", NULL, "Headset Mic"},
257};
258
259static const struct snd_kcontrol_new byt_wm5102_controls[] = {
260 SOC_DAPM_PIN_SWITCH("Headphone"),
261 SOC_DAPM_PIN_SWITCH("Headset Mic"),
262 SOC_DAPM_PIN_SWITCH("Internal Mic"),
263 SOC_DAPM_PIN_SWITCH("Speaker"),
264 SOC_DAPM_PIN_SWITCH("Line Out"),
265};
266
267static struct snd_soc_jack_pin byt_wm5102_pins[] = {
268 {
269 .pin = "Headphone",
270 .mask = SND_JACK_HEADPHONE,
271 },
272 {
273 .pin = "Headset Mic",
274 .mask = SND_JACK_MICROPHONE,
275 },
276 {
277 .pin = "Line Out",
278 .mask = SND_JACK_LINEOUT,
279 },
280};
281
282static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
283{
284 struct snd_soc_card *card = runtime->card;
285 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(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 snd_soc_dapm_set_idle_bias(dapm, on: false);
292
293 ret = snd_soc_add_card_controls(soc_card: card, controls: 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(dapm, route: custom_map, num: 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(dapm, route: custom_map, num: 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(dapm, route: custom_map, num: 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(clk: priv->mclk);
353 if (!ret)
354 clk_disable_unprepare(clk: priv->mclk);
355
356 ret = clk_set_rate(clk: priv->mclk, rate: 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, id: "Headset", type: jack_type,
365 jack: &priv->jack, pins: 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, jack: &priv->jack, NULL);
373
374 return 0;
375}
376
377static 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(p: params, SNDRV_PCM_FORMAT_S24_LE);
395 bits = 24;
396 } else {
397 /* set SSP0 to 16-bit */
398 params_set_format(p: 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), tx_mask: 0x3, rx_mask: 0x3, slots: 2, slot_width: 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
425static int byt_wm5102_aif1_startup(struct snd_pcm_substream *substream)
426{
427 return snd_pcm_hw_constraint_single(runtime: substream->runtime,
428 SNDRV_PCM_HW_PARAM_RATE, val: 48000);
429}
430
431static const struct snd_soc_ops byt_wm5102_aif1_ops = {
432 .startup = byt_wm5102_aif1_startup,
433};
434
435SND_SOC_DAILINK_DEF(dummy,
436 DAILINK_COMP_ARRAY(COMP_DUMMY()));
437
438SND_SOC_DAILINK_DEF(media,
439 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
440
441SND_SOC_DAILINK_DEF(deepbuffer,
442 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
443
444SND_SOC_DAILINK_DEF(ssp0_port,
445 DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
446
447SND_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
456SND_SOC_DAILINK_DEF(platform,
457 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
458
459static 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 .ops = &byt_wm5102_aif1_ops,
466 SND_SOC_DAILINK_REG(media, dummy, platform),
467
468 },
469 [MERR_DPCM_DEEP_BUFFER] = {
470 .name = "Deep-Buffer Audio Port",
471 .stream_name = "Deep-Buffer Audio",
472 .nonatomic = true,
473 .dynamic = 1,
474 .playback_only = 1,
475 .ops = &byt_wm5102_aif1_ops,
476 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
477 },
478 /* back ends */
479 {
480 /*
481 * This dailink is updated dynamically to point to SSP0 or SSP2.
482 * Yet its name is always kept as "SSP2-Codec" because the SOF
483 * tplg files hardcode "SSP2-Codec" even in byt-foo-ssp0.tplg.
484 */
485 .name = "SSP2-Codec",
486 .id = 0,
487 .no_pcm = 1,
488 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
489 | SND_SOC_DAIFMT_CBC_CFC,
490 .be_hw_params_fixup = byt_wm5102_codec_fixup,
491 .init = byt_wm5102_init,
492 SND_SOC_DAILINK_REG(ssp0_port, ssp0_codec, platform),
493 },
494};
495
496/* use space before codec name to simplify card ID, and simplify driver name */
497#define SOF_CARD_NAME "bytcht wm5102" /* card name will be 'sof-bytcht wm5102' */
498#define SOF_DRIVER_NAME "SOF"
499
500#define CARD_NAME "bytcr-wm5102"
501#define DRIVER_NAME NULL /* card name will be used for driver name */
502
503/* SoC card */
504static struct snd_soc_card byt_wm5102_card = {
505 .owner = THIS_MODULE,
506 .dai_link = byt_wm5102_dais,
507 .num_links = ARRAY_SIZE(byt_wm5102_dais),
508 .dapm_widgets = byt_wm5102_widgets,
509 .num_dapm_widgets = ARRAY_SIZE(byt_wm5102_widgets),
510 .dapm_routes = byt_wm5102_audio_map,
511 .num_dapm_routes = ARRAY_SIZE(byt_wm5102_audio_map),
512 .fully_routed = true,
513};
514
515static char byt_wm5102_components[64]; /* = "cfg-spk:* cfg-int-mic:* cfg-hs-mic:* ..." */
516
517static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
518{
519 static const char * const out_map_name[] = { "spk", "hpout2" };
520 static const char * const intmic_map_name[] = { "in3l", "in1l" };
521 static const char * const hsmic_map_name[] = { "in1l", "in2l" };
522 char codec_name[SND_ACPI_I2C_ID_LEN];
523 struct device *dev = &pdev->dev;
524 struct byt_wm5102_private *priv;
525 struct snd_soc_acpi_mach *mach;
526 const char *platform_name;
527 struct acpi_device *adev;
528 struct device *codec_dev;
529 int dai_index = 0;
530 bool sof_parent;
531 int i, ret;
532
533 priv = devm_kzalloc(dev, size: sizeof(*priv), GFP_KERNEL);
534 if (!priv)
535 return -ENOMEM;
536
537 /* Get MCLK */
538 priv->mclk = devm_clk_get(dev, id: "pmc_plt_clk_3");
539 if (IS_ERR(ptr: priv->mclk))
540 return dev_err_probe(dev, err: PTR_ERR(ptr: priv->mclk), fmt: "getting pmc_plt_clk_3\n");
541
542 /*
543 * Get speaker VDD enable GPIO:
544 * 1. Get codec-device-name
545 * 2. Get codec-device
546 * 3. Get GPIO from codec-device
547 */
548 mach = dev->platform_data;
549 adev = acpi_dev_get_first_match_dev(hid: mach->id, NULL, hrv: -1);
550 if (adev) {
551 snprintf(buf: codec_name, size: sizeof(codec_name), fmt: "spi-%s", acpi_dev_name(adev));
552 acpi_dev_put(adev);
553 } else {
554 /* Special case for when the codec is missing from the DSTD */
555 strscpy(codec_name, "spi-wm5102", sizeof(codec_name));
556 }
557
558 codec_dev = bus_find_device_by_name(bus: &spi_bus_type, NULL, name: codec_name);
559 if (!codec_dev)
560 return -EPROBE_DEFER;
561
562 /* Note no devm_ here since we call gpiod_get on codec_dev rather then dev */
563 priv->spkvdd_en_gpio = gpiod_get(dev: codec_dev, con_id: "wlf,spkvdd-ena", flags: GPIOD_OUT_LOW);
564 put_device(dev: codec_dev);
565
566 if (IS_ERR(ptr: priv->spkvdd_en_gpio)) {
567 ret = PTR_ERR(ptr: priv->spkvdd_en_gpio);
568 /*
569 * The spkvdd gpio-lookup is registered by: drivers/mfd/arizona-spi.c,
570 * so -ENOENT means that arizona-spi hasn't probed yet.
571 */
572 if (ret == -ENOENT)
573 ret = -EPROBE_DEFER;
574
575 return dev_err_probe(dev, err: ret, fmt: "getting spkvdd-GPIO\n");
576 }
577
578 if (soc_intel_is_cht()) {
579 /*
580 * CHT always uses SSP2 and 19.2 MHz; and
581 * the one currently supported CHT design uses HPOUT2 as
582 * speaker output and has the intmic on IN1L + hsmic on IN2L.
583 */
584 quirk = BYT_WM5102_SSP2 | BYT_WM5102_MCLK_19_2MHZ |
585 BYT_WM5102_INTMIC_IN1L_HSMIC_IN2L |
586 BYT_WM5102_SPK_HPOUT2_MAP;
587 }
588 if (quirk_override != -1) {
589 dev_info_once(dev, "Overriding quirk 0x%lx => 0x%x\n",
590 quirk, quirk_override);
591 quirk = quirk_override;
592 }
593 log_quirks(dev);
594
595 snprintf(buf: byt_wm5102_components, size: sizeof(byt_wm5102_components),
596 fmt: "cfg-spk:%s cfg-intmic:%s cfg-hsmic:%s",
597 out_map_name[FIELD_GET(BYT_WM5102_OUT_MAP, quirk)],
598 intmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)],
599 hsmic_map_name[FIELD_GET(BYT_WM5102_IN_MAP, quirk)]);
600 byt_wm5102_card.components = byt_wm5102_components;
601
602 /* find index of codec dai */
603 for (i = 0; i < ARRAY_SIZE(byt_wm5102_dais); i++) {
604 if (byt_wm5102_dais[i].num_codecs &&
605 !strcmp(byt_wm5102_dais[i].codecs->name,
606 "wm5102-codec")) {
607 dai_index = i;
608 break;
609 }
610 }
611
612 /* override platform name, if required */
613 byt_wm5102_card.dev = dev;
614 platform_name = mach->mach_params.platform;
615 ret = snd_soc_fixup_dai_links_platform_name(card: &byt_wm5102_card, platform_name);
616 if (ret)
617 goto out_put_gpio;
618
619 /* override SSP port, if required */
620 if (quirk & BYT_WM5102_SSP2)
621 byt_wm5102_dais[dai_index].cpus->dai_name = "ssp2-port";
622
623 /* set card and driver name and pm-ops */
624 sof_parent = snd_soc_acpi_sof_parent(dev);
625 if (sof_parent) {
626 byt_wm5102_card.name = SOF_CARD_NAME;
627 byt_wm5102_card.driver_name = SOF_DRIVER_NAME;
628 dev->driver->pm = &snd_soc_pm_ops;
629 } else {
630 byt_wm5102_card.name = CARD_NAME;
631 byt_wm5102_card.driver_name = DRIVER_NAME;
632 }
633
634 snd_soc_card_set_drvdata(card: &byt_wm5102_card, data: priv);
635 ret = devm_snd_soc_register_card(dev, card: &byt_wm5102_card);
636 if (ret) {
637 dev_err_probe(dev, err: ret, fmt: "registering card\n");
638 goto out_put_gpio;
639 }
640
641 platform_set_drvdata(pdev, data: &byt_wm5102_card);
642 return 0;
643
644out_put_gpio:
645 gpiod_put(desc: priv->spkvdd_en_gpio);
646 return ret;
647}
648
649static void snd_byt_wm5102_mc_remove(struct platform_device *pdev)
650{
651 struct snd_soc_card *card = platform_get_drvdata(pdev);
652 struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
653
654 gpiod_put(desc: priv->spkvdd_en_gpio);
655}
656
657static struct platform_driver snd_byt_wm5102_mc_driver = {
658 .driver = {
659 .name = "bytcr_wm5102",
660 },
661 .probe = snd_byt_wm5102_mc_probe,
662 .remove = snd_byt_wm5102_mc_remove,
663};
664
665module_platform_driver(snd_byt_wm5102_mc_driver);
666
667MODULE_DESCRIPTION("ASoC Baytrail with WM5102 codec machine driver");
668MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
669MODULE_LICENSE("GPL v2");
670MODULE_ALIAS("platform:bytcr_wm5102");
671

source code of linux/sound/soc/intel/boards/bytcr_wm5102.c