1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * wm8741.c -- WM8741 ALSA SoC Audio driver |
4 | * |
5 | * Copyright 2010-1 Wolfson Microelectronics plc |
6 | * |
7 | * Author: Ian Lartey <ian@opensource.wolfsonmicro.com> |
8 | */ |
9 | |
10 | #include <linux/module.h> |
11 | #include <linux/moduleparam.h> |
12 | #include <linux/init.h> |
13 | #include <linux/delay.h> |
14 | #include <linux/pm.h> |
15 | #include <linux/i2c.h> |
16 | #include <linux/spi/spi.h> |
17 | #include <linux/of.h> |
18 | #include <linux/regmap.h> |
19 | #include <linux/regulator/consumer.h> |
20 | #include <linux/slab.h> |
21 | #include <sound/core.h> |
22 | #include <sound/pcm.h> |
23 | #include <sound/pcm_params.h> |
24 | #include <sound/soc.h> |
25 | #include <sound/initval.h> |
26 | #include <sound/tlv.h> |
27 | |
28 | #include "wm8741.h" |
29 | |
30 | #define WM8741_NUM_SUPPLIES 2 |
31 | static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { |
32 | "AVDD" , |
33 | "DVDD" , |
34 | }; |
35 | |
36 | /* codec private data */ |
37 | struct wm8741_priv { |
38 | struct wm8741_platform_data pdata; |
39 | struct regmap *regmap; |
40 | struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; |
41 | unsigned int sysclk; |
42 | const struct snd_pcm_hw_constraint_list *sysclk_constraints; |
43 | }; |
44 | |
45 | static const struct reg_default wm8741_reg_defaults[] = { |
46 | { 0, 0x0000 }, /* R0 - DACLLSB Attenuation */ |
47 | { 1, 0x0000 }, /* R1 - DACLMSB Attenuation */ |
48 | { 2, 0x0000 }, /* R2 - DACRLSB Attenuation */ |
49 | { 3, 0x0000 }, /* R3 - DACRMSB Attenuation */ |
50 | { 4, 0x0000 }, /* R4 - Volume Control */ |
51 | { 5, 0x000A }, /* R5 - Format Control */ |
52 | { 6, 0x0000 }, /* R6 - Filter Control */ |
53 | { 7, 0x0000 }, /* R7 - Mode Control 1 */ |
54 | { 8, 0x0002 }, /* R8 - Mode Control 2 */ |
55 | { 32, 0x0002 }, /* R32 - ADDITONAL_CONTROL_1 */ |
56 | }; |
57 | |
58 | static int wm8741_reset(struct snd_soc_component *component) |
59 | { |
60 | return snd_soc_component_write(component, WM8741_RESET, val: 0); |
61 | } |
62 | |
63 | static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); |
64 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); |
65 | |
66 | static const struct snd_kcontrol_new wm8741_snd_controls_stereo[] = { |
67 | SOC_DOUBLE_R_TLV("Fine Playback Volume" , WM8741_DACLLSB_ATTENUATION, |
68 | WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), |
69 | SOC_DOUBLE_R_TLV("Playback Volume" , WM8741_DACLMSB_ATTENUATION, |
70 | WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), |
71 | }; |
72 | |
73 | static const struct snd_kcontrol_new wm8741_snd_controls_mono_left[] = { |
74 | SOC_SINGLE_TLV("Fine Playback Volume" , WM8741_DACLLSB_ATTENUATION, |
75 | 1, 255, 1, dac_tlv_fine), |
76 | SOC_SINGLE_TLV("Playback Volume" , WM8741_DACLMSB_ATTENUATION, |
77 | 0, 511, 1, dac_tlv), |
78 | }; |
79 | |
80 | static const struct snd_kcontrol_new wm8741_snd_controls_mono_right[] = { |
81 | SOC_SINGLE_TLV("Fine Playback Volume" , WM8741_DACRLSB_ATTENUATION, |
82 | 1, 255, 1, dac_tlv_fine), |
83 | SOC_SINGLE_TLV("Playback Volume" , WM8741_DACRMSB_ATTENUATION, |
84 | 0, 511, 1, dac_tlv), |
85 | }; |
86 | |
87 | static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { |
88 | SND_SOC_DAPM_DAC("DACL" , "Playback" , SND_SOC_NOPM, 0, 0), |
89 | SND_SOC_DAPM_DAC("DACR" , "Playback" , SND_SOC_NOPM, 0, 0), |
90 | SND_SOC_DAPM_OUTPUT("VOUTLP" ), |
91 | SND_SOC_DAPM_OUTPUT("VOUTLN" ), |
92 | SND_SOC_DAPM_OUTPUT("VOUTRP" ), |
93 | SND_SOC_DAPM_OUTPUT("VOUTRN" ), |
94 | }; |
95 | |
96 | static const struct snd_soc_dapm_route wm8741_dapm_routes[] = { |
97 | { "VOUTLP" , NULL, "DACL" }, |
98 | { "VOUTLN" , NULL, "DACL" }, |
99 | { "VOUTRP" , NULL, "DACR" }, |
100 | { "VOUTRN" , NULL, "DACR" }, |
101 | }; |
102 | |
103 | static const unsigned int rates_11289[] = { |
104 | 44100, 88200, |
105 | }; |
106 | |
107 | static const struct snd_pcm_hw_constraint_list constraints_11289 = { |
108 | .count = ARRAY_SIZE(rates_11289), |
109 | .list = rates_11289, |
110 | }; |
111 | |
112 | static const unsigned int rates_12288[] = { |
113 | 32000, 48000, 96000, |
114 | }; |
115 | |
116 | static const struct snd_pcm_hw_constraint_list constraints_12288 = { |
117 | .count = ARRAY_SIZE(rates_12288), |
118 | .list = rates_12288, |
119 | }; |
120 | |
121 | static const unsigned int rates_16384[] = { |
122 | 32000, |
123 | }; |
124 | |
125 | static const struct snd_pcm_hw_constraint_list constraints_16384 = { |
126 | .count = ARRAY_SIZE(rates_16384), |
127 | .list = rates_16384, |
128 | }; |
129 | |
130 | static const unsigned int rates_16934[] = { |
131 | 44100, 88200, |
132 | }; |
133 | |
134 | static const struct snd_pcm_hw_constraint_list constraints_16934 = { |
135 | .count = ARRAY_SIZE(rates_16934), |
136 | .list = rates_16934, |
137 | }; |
138 | |
139 | static const unsigned int rates_18432[] = { |
140 | 48000, 96000, |
141 | }; |
142 | |
143 | static const struct snd_pcm_hw_constraint_list constraints_18432 = { |
144 | .count = ARRAY_SIZE(rates_18432), |
145 | .list = rates_18432, |
146 | }; |
147 | |
148 | static const unsigned int rates_22579[] = { |
149 | 44100, 88200, 176400 |
150 | }; |
151 | |
152 | static const struct snd_pcm_hw_constraint_list constraints_22579 = { |
153 | .count = ARRAY_SIZE(rates_22579), |
154 | .list = rates_22579, |
155 | }; |
156 | |
157 | static const unsigned int rates_24576[] = { |
158 | 32000, 48000, 96000, 192000 |
159 | }; |
160 | |
161 | static const struct snd_pcm_hw_constraint_list constraints_24576 = { |
162 | .count = ARRAY_SIZE(rates_24576), |
163 | .list = rates_24576, |
164 | }; |
165 | |
166 | static const unsigned int rates_36864[] = { |
167 | 48000, 96000, 192000 |
168 | }; |
169 | |
170 | static const struct snd_pcm_hw_constraint_list constraints_36864 = { |
171 | .count = ARRAY_SIZE(rates_36864), |
172 | .list = rates_36864, |
173 | }; |
174 | |
175 | static int wm8741_startup(struct snd_pcm_substream *substream, |
176 | struct snd_soc_dai *dai) |
177 | { |
178 | struct snd_soc_component *component = dai->component; |
179 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
180 | |
181 | if (wm8741->sysclk) |
182 | snd_pcm_hw_constraint_list(runtime: substream->runtime, cond: 0, |
183 | SNDRV_PCM_HW_PARAM_RATE, |
184 | l: wm8741->sysclk_constraints); |
185 | |
186 | return 0; |
187 | } |
188 | |
189 | static int wm8741_hw_params(struct snd_pcm_substream *substream, |
190 | struct snd_pcm_hw_params *params, |
191 | struct snd_soc_dai *dai) |
192 | { |
193 | struct snd_soc_component *component = dai->component; |
194 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
195 | unsigned int iface, mode; |
196 | int i; |
197 | |
198 | /* The set of sample rates that can be supported depends on the |
199 | * MCLK supplied to the CODEC - enforce this. |
200 | */ |
201 | if (!wm8741->sysclk) { |
202 | dev_err(component->dev, |
203 | "No MCLK configured, call set_sysclk() on init or in hw_params\n" ); |
204 | return -EINVAL; |
205 | } |
206 | |
207 | /* Find a supported LRCLK rate */ |
208 | for (i = 0; i < wm8741->sysclk_constraints->count; i++) { |
209 | if (wm8741->sysclk_constraints->list[i] == params_rate(p: params)) |
210 | break; |
211 | } |
212 | |
213 | if (i == wm8741->sysclk_constraints->count) { |
214 | dev_err(component->dev, "LRCLK %d unsupported with MCLK %d\n" , |
215 | params_rate(params), wm8741->sysclk); |
216 | return -EINVAL; |
217 | } |
218 | |
219 | /* bit size */ |
220 | switch (params_width(p: params)) { |
221 | case 16: |
222 | iface = 0x0; |
223 | break; |
224 | case 20: |
225 | iface = 0x1; |
226 | break; |
227 | case 24: |
228 | iface = 0x2; |
229 | break; |
230 | case 32: |
231 | iface = 0x3; |
232 | break; |
233 | default: |
234 | dev_dbg(component->dev, "wm8741_hw_params: Unsupported bit size param = %d" , |
235 | params_width(params)); |
236 | return -EINVAL; |
237 | } |
238 | |
239 | /* oversampling rate */ |
240 | if (params_rate(p: params) > 96000) |
241 | mode = 0x40; |
242 | else if (params_rate(p: params) > 48000) |
243 | mode = 0x20; |
244 | else |
245 | mode = 0x00; |
246 | |
247 | dev_dbg(component->dev, "wm8741_hw_params: bit size param = %d, rate param = %d" , |
248 | params_width(params), params_rate(params)); |
249 | |
250 | snd_soc_component_update_bits(component, WM8741_FORMAT_CONTROL, WM8741_IWL_MASK, |
251 | val: iface); |
252 | snd_soc_component_update_bits(component, WM8741_MODE_CONTROL_1, WM8741_OSR_MASK, |
253 | val: mode); |
254 | |
255 | return 0; |
256 | } |
257 | |
258 | static int wm8741_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
259 | int clk_id, unsigned int freq, int dir) |
260 | { |
261 | struct snd_soc_component *component = codec_dai->component; |
262 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
263 | |
264 | dev_dbg(component->dev, "wm8741_set_dai_sysclk info: freq=%dHz\n" , freq); |
265 | |
266 | switch (freq) { |
267 | case 0: |
268 | wm8741->sysclk_constraints = NULL; |
269 | break; |
270 | case 11289600: |
271 | wm8741->sysclk_constraints = &constraints_11289; |
272 | break; |
273 | case 12288000: |
274 | wm8741->sysclk_constraints = &constraints_12288; |
275 | break; |
276 | case 16384000: |
277 | wm8741->sysclk_constraints = &constraints_16384; |
278 | break; |
279 | case 16934400: |
280 | wm8741->sysclk_constraints = &constraints_16934; |
281 | break; |
282 | case 18432000: |
283 | wm8741->sysclk_constraints = &constraints_18432; |
284 | break; |
285 | case 22579200: |
286 | case 33868800: |
287 | wm8741->sysclk_constraints = &constraints_22579; |
288 | break; |
289 | case 24576000: |
290 | wm8741->sysclk_constraints = &constraints_24576; |
291 | break; |
292 | case 36864000: |
293 | wm8741->sysclk_constraints = &constraints_36864; |
294 | break; |
295 | default: |
296 | return -EINVAL; |
297 | } |
298 | |
299 | wm8741->sysclk = freq; |
300 | return 0; |
301 | } |
302 | |
303 | static int wm8741_set_dai_fmt(struct snd_soc_dai *codec_dai, |
304 | unsigned int fmt) |
305 | { |
306 | struct snd_soc_component *component = codec_dai->component; |
307 | unsigned int iface; |
308 | |
309 | /* check master/slave audio interface */ |
310 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
311 | case SND_SOC_DAIFMT_CBS_CFS: |
312 | break; |
313 | default: |
314 | return -EINVAL; |
315 | } |
316 | |
317 | /* interface format */ |
318 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
319 | case SND_SOC_DAIFMT_I2S: |
320 | iface = 0x08; |
321 | break; |
322 | case SND_SOC_DAIFMT_RIGHT_J: |
323 | iface = 0x00; |
324 | break; |
325 | case SND_SOC_DAIFMT_LEFT_J: |
326 | iface = 0x04; |
327 | break; |
328 | case SND_SOC_DAIFMT_DSP_A: |
329 | iface = 0x0C; |
330 | break; |
331 | case SND_SOC_DAIFMT_DSP_B: |
332 | iface = 0x1C; |
333 | break; |
334 | default: |
335 | return -EINVAL; |
336 | } |
337 | |
338 | /* clock inversion */ |
339 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
340 | case SND_SOC_DAIFMT_NB_NF: |
341 | break; |
342 | case SND_SOC_DAIFMT_NB_IF: |
343 | iface |= 0x10; |
344 | break; |
345 | case SND_SOC_DAIFMT_IB_NF: |
346 | iface |= 0x20; |
347 | break; |
348 | case SND_SOC_DAIFMT_IB_IF: |
349 | iface |= 0x30; |
350 | break; |
351 | default: |
352 | return -EINVAL; |
353 | } |
354 | |
355 | |
356 | dev_dbg(component->dev, "wm8741_set_dai_fmt: Format=%x, Clock Inv=%x\n" , |
357 | fmt & SND_SOC_DAIFMT_FORMAT_MASK, |
358 | ((fmt & SND_SOC_DAIFMT_INV_MASK))); |
359 | |
360 | snd_soc_component_update_bits(component, WM8741_FORMAT_CONTROL, |
361 | WM8741_BCP_MASK | WM8741_LRP_MASK | WM8741_FMT_MASK, |
362 | val: iface); |
363 | |
364 | return 0; |
365 | } |
366 | |
367 | static int wm8741_mute(struct snd_soc_dai *codec_dai, int mute, int direction) |
368 | { |
369 | struct snd_soc_component *component = codec_dai->component; |
370 | |
371 | snd_soc_component_update_bits(component, WM8741_VOLUME_CONTROL, |
372 | WM8741_SOFT_MASK, val: !!mute << WM8741_SOFT_SHIFT); |
373 | return 0; |
374 | } |
375 | |
376 | #define WM8741_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ |
377 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \ |
378 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | \ |
379 | SNDRV_PCM_RATE_192000) |
380 | |
381 | #define WM8741_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
382 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
383 | |
384 | static const struct snd_soc_dai_ops wm8741_dai_ops = { |
385 | .startup = wm8741_startup, |
386 | .hw_params = wm8741_hw_params, |
387 | .set_sysclk = wm8741_set_dai_sysclk, |
388 | .set_fmt = wm8741_set_dai_fmt, |
389 | .mute_stream = wm8741_mute, |
390 | .no_capture_mute = 1, |
391 | }; |
392 | |
393 | static struct snd_soc_dai_driver wm8741_dai = { |
394 | .name = "wm8741" , |
395 | .playback = { |
396 | .stream_name = "Playback" , |
397 | .channels_min = 2, |
398 | .channels_max = 2, |
399 | .rates = WM8741_RATES, |
400 | .formats = WM8741_FORMATS, |
401 | }, |
402 | .ops = &wm8741_dai_ops, |
403 | }; |
404 | |
405 | #ifdef CONFIG_PM |
406 | static int wm8741_resume(struct snd_soc_component *component) |
407 | { |
408 | snd_soc_component_cache_sync(component); |
409 | return 0; |
410 | } |
411 | #else |
412 | #define wm8741_resume NULL |
413 | #endif |
414 | |
415 | static int wm8741_configure(struct snd_soc_component *component) |
416 | { |
417 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
418 | |
419 | /* Configure differential mode */ |
420 | switch (wm8741->pdata.diff_mode) { |
421 | case WM8741_DIFF_MODE_STEREO: |
422 | case WM8741_DIFF_MODE_STEREO_REVERSED: |
423 | case WM8741_DIFF_MODE_MONO_LEFT: |
424 | case WM8741_DIFF_MODE_MONO_RIGHT: |
425 | snd_soc_component_update_bits(component, WM8741_MODE_CONTROL_2, |
426 | WM8741_DIFF_MASK, |
427 | val: wm8741->pdata.diff_mode << WM8741_DIFF_SHIFT); |
428 | break; |
429 | default: |
430 | return -EINVAL; |
431 | } |
432 | |
433 | /* Change some default settings - latch VU */ |
434 | snd_soc_component_update_bits(component, WM8741_DACLLSB_ATTENUATION, |
435 | WM8741_UPDATELL, WM8741_UPDATELL); |
436 | snd_soc_component_update_bits(component, WM8741_DACLMSB_ATTENUATION, |
437 | WM8741_UPDATELM, WM8741_UPDATELM); |
438 | snd_soc_component_update_bits(component, WM8741_DACRLSB_ATTENUATION, |
439 | WM8741_UPDATERL, WM8741_UPDATERL); |
440 | snd_soc_component_update_bits(component, WM8741_DACRMSB_ATTENUATION, |
441 | WM8741_UPDATERM, WM8741_UPDATERM); |
442 | |
443 | return 0; |
444 | } |
445 | |
446 | static int wm8741_add_controls(struct snd_soc_component *component) |
447 | { |
448 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
449 | |
450 | switch (wm8741->pdata.diff_mode) { |
451 | case WM8741_DIFF_MODE_STEREO: |
452 | case WM8741_DIFF_MODE_STEREO_REVERSED: |
453 | snd_soc_add_component_controls(component, |
454 | controls: wm8741_snd_controls_stereo, |
455 | ARRAY_SIZE(wm8741_snd_controls_stereo)); |
456 | break; |
457 | case WM8741_DIFF_MODE_MONO_LEFT: |
458 | snd_soc_add_component_controls(component, |
459 | controls: wm8741_snd_controls_mono_left, |
460 | ARRAY_SIZE(wm8741_snd_controls_mono_left)); |
461 | break; |
462 | case WM8741_DIFF_MODE_MONO_RIGHT: |
463 | snd_soc_add_component_controls(component, |
464 | controls: wm8741_snd_controls_mono_right, |
465 | ARRAY_SIZE(wm8741_snd_controls_mono_right)); |
466 | break; |
467 | default: |
468 | return -EINVAL; |
469 | } |
470 | |
471 | return 0; |
472 | } |
473 | |
474 | static int wm8741_probe(struct snd_soc_component *component) |
475 | { |
476 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
477 | int ret = 0; |
478 | |
479 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8741->supplies), |
480 | consumers: wm8741->supplies); |
481 | if (ret != 0) { |
482 | dev_err(component->dev, "Failed to enable supplies: %d\n" , ret); |
483 | goto err_get; |
484 | } |
485 | |
486 | ret = wm8741_reset(component); |
487 | if (ret < 0) { |
488 | dev_err(component->dev, "Failed to issue reset\n" ); |
489 | goto err_enable; |
490 | } |
491 | |
492 | ret = wm8741_configure(component); |
493 | if (ret < 0) { |
494 | dev_err(component->dev, "Failed to change default settings\n" ); |
495 | goto err_enable; |
496 | } |
497 | |
498 | ret = wm8741_add_controls(component); |
499 | if (ret < 0) { |
500 | dev_err(component->dev, "Failed to add controls\n" ); |
501 | goto err_enable; |
502 | } |
503 | |
504 | dev_dbg(component->dev, "Successful registration\n" ); |
505 | return ret; |
506 | |
507 | err_enable: |
508 | regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), consumers: wm8741->supplies); |
509 | err_get: |
510 | return ret; |
511 | } |
512 | |
513 | static void wm8741_remove(struct snd_soc_component *component) |
514 | { |
515 | struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(c: component); |
516 | |
517 | regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), consumers: wm8741->supplies); |
518 | } |
519 | |
520 | static const struct snd_soc_component_driver soc_component_dev_wm8741 = { |
521 | .probe = wm8741_probe, |
522 | .remove = wm8741_remove, |
523 | .resume = wm8741_resume, |
524 | .dapm_widgets = wm8741_dapm_widgets, |
525 | .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), |
526 | .dapm_routes = wm8741_dapm_routes, |
527 | .num_dapm_routes = ARRAY_SIZE(wm8741_dapm_routes), |
528 | .idle_bias_on = 1, |
529 | .use_pmdown_time = 1, |
530 | .endianness = 1, |
531 | }; |
532 | |
533 | static const struct of_device_id wm8741_of_match[] = { |
534 | { .compatible = "wlf,wm8741" , }, |
535 | { } |
536 | }; |
537 | MODULE_DEVICE_TABLE(of, wm8741_of_match); |
538 | |
539 | static const struct regmap_config wm8741_regmap = { |
540 | .reg_bits = 7, |
541 | .val_bits = 9, |
542 | .max_register = WM8741_MAX_REGISTER, |
543 | |
544 | .reg_defaults = wm8741_reg_defaults, |
545 | .num_reg_defaults = ARRAY_SIZE(wm8741_reg_defaults), |
546 | .cache_type = REGCACHE_MAPLE, |
547 | }; |
548 | |
549 | static int wm8741_set_pdata(struct device *dev, struct wm8741_priv *wm8741) |
550 | { |
551 | const struct wm8741_platform_data *pdata = dev_get_platdata(dev); |
552 | u32 diff_mode; |
553 | |
554 | if (dev->of_node) { |
555 | if (of_property_read_u32(np: dev->of_node, propname: "diff-mode" , out_value: &diff_mode) |
556 | >= 0) |
557 | wm8741->pdata.diff_mode = diff_mode; |
558 | } else { |
559 | if (pdata != NULL) |
560 | memcpy(&wm8741->pdata, pdata, sizeof(wm8741->pdata)); |
561 | } |
562 | |
563 | return 0; |
564 | } |
565 | |
566 | #if IS_ENABLED(CONFIG_I2C) |
567 | static int wm8741_i2c_probe(struct i2c_client *i2c) |
568 | { |
569 | struct wm8741_priv *wm8741; |
570 | int ret, i; |
571 | |
572 | wm8741 = devm_kzalloc(dev: &i2c->dev, size: sizeof(struct wm8741_priv), |
573 | GFP_KERNEL); |
574 | if (wm8741 == NULL) |
575 | return -ENOMEM; |
576 | |
577 | for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) |
578 | wm8741->supplies[i].supply = wm8741_supply_names[i]; |
579 | |
580 | ret = devm_regulator_bulk_get(dev: &i2c->dev, ARRAY_SIZE(wm8741->supplies), |
581 | consumers: wm8741->supplies); |
582 | if (ret != 0) { |
583 | dev_err(&i2c->dev, "Failed to request supplies: %d\n" , ret); |
584 | return ret; |
585 | } |
586 | |
587 | wm8741->regmap = devm_regmap_init_i2c(i2c, &wm8741_regmap); |
588 | if (IS_ERR(ptr: wm8741->regmap)) { |
589 | ret = PTR_ERR(ptr: wm8741->regmap); |
590 | dev_err(&i2c->dev, "Failed to init regmap: %d\n" , ret); |
591 | return ret; |
592 | } |
593 | |
594 | ret = wm8741_set_pdata(dev: &i2c->dev, wm8741); |
595 | if (ret != 0) { |
596 | dev_err(&i2c->dev, "Failed to set pdata: %d\n" , ret); |
597 | return ret; |
598 | } |
599 | |
600 | i2c_set_clientdata(client: i2c, data: wm8741); |
601 | |
602 | ret = devm_snd_soc_register_component(dev: &i2c->dev, |
603 | component_driver: &soc_component_dev_wm8741, dai_drv: &wm8741_dai, num_dai: 1); |
604 | |
605 | return ret; |
606 | } |
607 | |
608 | static const struct i2c_device_id wm8741_i2c_id[] = { |
609 | { "wm8741" , 0 }, |
610 | { } |
611 | }; |
612 | MODULE_DEVICE_TABLE(i2c, wm8741_i2c_id); |
613 | |
614 | static struct i2c_driver wm8741_i2c_driver = { |
615 | .driver = { |
616 | .name = "wm8741" , |
617 | .of_match_table = wm8741_of_match, |
618 | }, |
619 | .probe = wm8741_i2c_probe, |
620 | .id_table = wm8741_i2c_id, |
621 | }; |
622 | #endif |
623 | |
624 | #if defined(CONFIG_SPI_MASTER) |
625 | static int wm8741_spi_probe(struct spi_device *spi) |
626 | { |
627 | struct wm8741_priv *wm8741; |
628 | int ret, i; |
629 | |
630 | wm8741 = devm_kzalloc(dev: &spi->dev, size: sizeof(struct wm8741_priv), |
631 | GFP_KERNEL); |
632 | if (wm8741 == NULL) |
633 | return -ENOMEM; |
634 | |
635 | for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) |
636 | wm8741->supplies[i].supply = wm8741_supply_names[i]; |
637 | |
638 | ret = devm_regulator_bulk_get(dev: &spi->dev, ARRAY_SIZE(wm8741->supplies), |
639 | consumers: wm8741->supplies); |
640 | if (ret != 0) { |
641 | dev_err(&spi->dev, "Failed to request supplies: %d\n" , ret); |
642 | return ret; |
643 | } |
644 | |
645 | wm8741->regmap = devm_regmap_init_spi(spi, &wm8741_regmap); |
646 | if (IS_ERR(ptr: wm8741->regmap)) { |
647 | ret = PTR_ERR(ptr: wm8741->regmap); |
648 | dev_err(&spi->dev, "Failed to init regmap: %d\n" , ret); |
649 | return ret; |
650 | } |
651 | |
652 | ret = wm8741_set_pdata(dev: &spi->dev, wm8741); |
653 | if (ret != 0) { |
654 | dev_err(&spi->dev, "Failed to set pdata: %d\n" , ret); |
655 | return ret; |
656 | } |
657 | |
658 | spi_set_drvdata(spi, data: wm8741); |
659 | |
660 | ret = devm_snd_soc_register_component(dev: &spi->dev, |
661 | component_driver: &soc_component_dev_wm8741, dai_drv: &wm8741_dai, num_dai: 1); |
662 | return ret; |
663 | } |
664 | |
665 | static struct spi_driver wm8741_spi_driver = { |
666 | .driver = { |
667 | .name = "wm8741" , |
668 | .of_match_table = wm8741_of_match, |
669 | }, |
670 | .probe = wm8741_spi_probe, |
671 | }; |
672 | #endif /* CONFIG_SPI_MASTER */ |
673 | |
674 | static int __init wm8741_modinit(void) |
675 | { |
676 | int ret = 0; |
677 | |
678 | #if IS_ENABLED(CONFIG_I2C) |
679 | ret = i2c_add_driver(&wm8741_i2c_driver); |
680 | if (ret != 0) |
681 | pr_err("Failed to register WM8741 I2C driver: %d\n" , ret); |
682 | #endif |
683 | #if defined(CONFIG_SPI_MASTER) |
684 | ret = spi_register_driver(&wm8741_spi_driver); |
685 | if (ret != 0) { |
686 | printk(KERN_ERR "Failed to register wm8741 SPI driver: %d\n" , |
687 | ret); |
688 | } |
689 | #endif |
690 | |
691 | return ret; |
692 | } |
693 | module_init(wm8741_modinit); |
694 | |
695 | static void __exit wm8741_exit(void) |
696 | { |
697 | #if defined(CONFIG_SPI_MASTER) |
698 | spi_unregister_driver(sdrv: &wm8741_spi_driver); |
699 | #endif |
700 | #if IS_ENABLED(CONFIG_I2C) |
701 | i2c_del_driver(driver: &wm8741_i2c_driver); |
702 | #endif |
703 | } |
704 | module_exit(wm8741_exit); |
705 | |
706 | MODULE_DESCRIPTION("ASoC WM8741 driver" ); |
707 | MODULE_AUTHOR("Ian Lartey <ian@opensource.wolfsonmicro.com>" ); |
708 | MODULE_LICENSE("GPL" ); |
709 | |