Commit | Line | Data |
---|---|---|
992bee40 IL |
1 | /* |
2 | * wm8741.c -- WM8741 ALSA SoC Audio driver | |
3 | * | |
656baaeb | 4 | * Copyright 2010-1 Wolfson Microelectronics plc |
992bee40 IL |
5 | * |
6 | * Author: Ian Lartey <ian@opensource.wolfsonmicro.com> | |
7 | * | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/i2c.h> | |
39e9b8d2 | 20 | #include <linux/spi/spi.h> |
fe98c0cf | 21 | #include <linux/regmap.h> |
992bee40 IL |
22 | #include <linux/regulator/consumer.h> |
23 | #include <linux/slab.h> | |
80080ec5 | 24 | #include <linux/of_device.h> |
992bee40 IL |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
992bee40 IL |
29 | #include <sound/initval.h> |
30 | #include <sound/tlv.h> | |
31 | ||
32 | #include "wm8741.h" | |
33 | ||
992bee40 IL |
34 | #define WM8741_NUM_SUPPLIES 2 |
35 | static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { | |
36 | "AVDD", | |
37 | "DVDD", | |
38 | }; | |
39 | ||
3fe4a5ee | 40 | #define WM8741_NUM_RATES 6 |
992bee40 IL |
41 | |
42 | /* codec private data */ | |
43 | struct wm8741_priv { | |
fe98c0cf | 44 | struct regmap *regmap; |
992bee40 IL |
45 | struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; |
46 | unsigned int sysclk; | |
70bad2c7 | 47 | const struct snd_pcm_hw_constraint_list *sysclk_constraints; |
992bee40 IL |
48 | }; |
49 | ||
fe98c0cf MB |
50 | static const struct reg_default wm8741_reg_defaults[] = { |
51 | { 0, 0x0000 }, /* R0 - DACLLSB Attenuation */ | |
52 | { 1, 0x0000 }, /* R1 - DACLMSB Attenuation */ | |
53 | { 2, 0x0000 }, /* R2 - DACRLSB Attenuation */ | |
54 | { 3, 0x0000 }, /* R3 - DACRMSB Attenuation */ | |
55 | { 4, 0x0000 }, /* R4 - Volume Control */ | |
56 | { 5, 0x000A }, /* R5 - Format Control */ | |
57 | { 6, 0x0000 }, /* R6 - Filter Control */ | |
58 | { 7, 0x0000 }, /* R7 - Mode Control 1 */ | |
59 | { 8, 0x0002 }, /* R8 - Mode Control 2 */ | |
60 | { 32, 0x0002 }, /* R32 - ADDITONAL_CONTROL_1 */ | |
992bee40 IL |
61 | }; |
62 | ||
fe98c0cf MB |
63 | static bool wm8741_readable(struct device *dev, unsigned int reg) |
64 | { | |
65 | switch (reg) { | |
66 | case WM8741_DACLLSB_ATTENUATION: | |
67 | case WM8741_DACLMSB_ATTENUATION: | |
68 | case WM8741_DACRLSB_ATTENUATION: | |
69 | case WM8741_DACRMSB_ATTENUATION: | |
70 | case WM8741_VOLUME_CONTROL: | |
71 | case WM8741_FORMAT_CONTROL: | |
72 | case WM8741_FILTER_CONTROL: | |
73 | case WM8741_MODE_CONTROL_1: | |
74 | case WM8741_MODE_CONTROL_2: | |
75 | case WM8741_ADDITIONAL_CONTROL_1: | |
76 | return true; | |
77 | default: | |
78 | return false; | |
79 | } | |
80 | } | |
992bee40 IL |
81 | |
82 | static int wm8741_reset(struct snd_soc_codec *codec) | |
83 | { | |
84 | return snd_soc_write(codec, WM8741_RESET, 0); | |
85 | } | |
86 | ||
87 | static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); | |
88 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); | |
89 | ||
90 | static const struct snd_kcontrol_new wm8741_snd_controls[] = { | |
91 | SOC_DOUBLE_R_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, | |
92 | WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), | |
93 | SOC_DOUBLE_R_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, | |
94 | WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), | |
95 | }; | |
96 | ||
97 | static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { | |
98 | SND_SOC_DAPM_DAC("DACL", "Playback", SND_SOC_NOPM, 0, 0), | |
99 | SND_SOC_DAPM_DAC("DACR", "Playback", SND_SOC_NOPM, 0, 0), | |
100 | SND_SOC_DAPM_OUTPUT("VOUTLP"), | |
101 | SND_SOC_DAPM_OUTPUT("VOUTLN"), | |
102 | SND_SOC_DAPM_OUTPUT("VOUTRP"), | |
103 | SND_SOC_DAPM_OUTPUT("VOUTRN"), | |
104 | }; | |
105 | ||
0e62780f | 106 | static const struct snd_soc_dapm_route wm8741_dapm_routes[] = { |
992bee40 IL |
107 | { "VOUTLP", NULL, "DACL" }, |
108 | { "VOUTLN", NULL, "DACL" }, | |
109 | { "VOUTRP", NULL, "DACR" }, | |
110 | { "VOUTRN", NULL, "DACR" }, | |
111 | }; | |
112 | ||
992bee40 IL |
113 | static struct { |
114 | int value; | |
115 | int ratio; | |
116 | } lrclk_ratios[WM8741_NUM_RATES] = { | |
3fe4a5ee IL |
117 | { 1, 128 }, |
118 | { 2, 192 }, | |
119 | { 3, 256 }, | |
120 | { 4, 384 }, | |
121 | { 5, 512 }, | |
122 | { 6, 768 }, | |
123 | }; | |
124 | ||
70bad2c7 | 125 | static const unsigned int rates_11289[] = { |
8787041d | 126 | 44100, 88200, |
3fe4a5ee IL |
127 | }; |
128 | ||
70bad2c7 | 129 | static const struct snd_pcm_hw_constraint_list constraints_11289 = { |
3fe4a5ee IL |
130 | .count = ARRAY_SIZE(rates_11289), |
131 | .list = rates_11289, | |
132 | }; | |
133 | ||
70bad2c7 | 134 | static const unsigned int rates_12288[] = { |
3fe4a5ee IL |
135 | 32000, 48000, 96000, |
136 | }; | |
137 | ||
70bad2c7 | 138 | static const struct snd_pcm_hw_constraint_list constraints_12288 = { |
3fe4a5ee IL |
139 | .count = ARRAY_SIZE(rates_12288), |
140 | .list = rates_12288, | |
141 | }; | |
142 | ||
70bad2c7 | 143 | static const unsigned int rates_16384[] = { |
3fe4a5ee IL |
144 | 32000, |
145 | }; | |
146 | ||
70bad2c7 | 147 | static const struct snd_pcm_hw_constraint_list constraints_16384 = { |
3fe4a5ee IL |
148 | .count = ARRAY_SIZE(rates_16384), |
149 | .list = rates_16384, | |
150 | }; | |
151 | ||
70bad2c7 | 152 | static const unsigned int rates_16934[] = { |
8787041d | 153 | 44100, 88200, |
3fe4a5ee IL |
154 | }; |
155 | ||
70bad2c7 | 156 | static const struct snd_pcm_hw_constraint_list constraints_16934 = { |
3fe4a5ee IL |
157 | .count = ARRAY_SIZE(rates_16934), |
158 | .list = rates_16934, | |
159 | }; | |
160 | ||
70bad2c7 | 161 | static const unsigned int rates_18432[] = { |
3fe4a5ee IL |
162 | 48000, 96000, |
163 | }; | |
164 | ||
70bad2c7 | 165 | static const struct snd_pcm_hw_constraint_list constraints_18432 = { |
3fe4a5ee IL |
166 | .count = ARRAY_SIZE(rates_18432), |
167 | .list = rates_18432, | |
168 | }; | |
169 | ||
70bad2c7 | 170 | static const unsigned int rates_22579[] = { |
8787041d | 171 | 44100, 88200, 176400 |
3fe4a5ee IL |
172 | }; |
173 | ||
70bad2c7 | 174 | static const struct snd_pcm_hw_constraint_list constraints_22579 = { |
3fe4a5ee IL |
175 | .count = ARRAY_SIZE(rates_22579), |
176 | .list = rates_22579, | |
177 | }; | |
178 | ||
70bad2c7 | 179 | static const unsigned int rates_24576[] = { |
3fe4a5ee IL |
180 | 32000, 48000, 96000, 192000 |
181 | }; | |
182 | ||
70bad2c7 | 183 | static const struct snd_pcm_hw_constraint_list constraints_24576 = { |
3fe4a5ee IL |
184 | .count = ARRAY_SIZE(rates_24576), |
185 | .list = rates_24576, | |
186 | }; | |
187 | ||
70bad2c7 | 188 | static const unsigned int rates_36864[] = { |
8787041d | 189 | 48000, 96000, 192000 |
3fe4a5ee IL |
190 | }; |
191 | ||
70bad2c7 | 192 | static const struct snd_pcm_hw_constraint_list constraints_36864 = { |
3fe4a5ee IL |
193 | .count = ARRAY_SIZE(rates_36864), |
194 | .list = rates_36864, | |
992bee40 IL |
195 | }; |
196 | ||
197 | ||
198 | static int wm8741_startup(struct snd_pcm_substream *substream, | |
199 | struct snd_soc_dai *dai) | |
200 | { | |
201 | struct snd_soc_codec *codec = dai->codec; | |
202 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
203 | ||
204 | /* The set of sample rates that can be supported depends on the | |
205 | * MCLK supplied to the CODEC - enforce this. | |
206 | */ | |
207 | if (!wm8741->sysclk) { | |
208 | dev_err(codec->dev, | |
209 | "No MCLK configured, call set_sysclk() on init\n"); | |
210 | return -EINVAL; | |
211 | } | |
212 | ||
213 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
214 | SNDRV_PCM_HW_PARAM_RATE, | |
3fe4a5ee | 215 | wm8741->sysclk_constraints); |
992bee40 IL |
216 | |
217 | return 0; | |
218 | } | |
219 | ||
220 | static int wm8741_hw_params(struct snd_pcm_substream *substream, | |
221 | struct snd_pcm_hw_params *params, | |
222 | struct snd_soc_dai *dai) | |
223 | { | |
e6968a17 | 224 | struct snd_soc_codec *codec = dai->codec; |
992bee40 IL |
225 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); |
226 | u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1FC; | |
227 | int i; | |
228 | ||
229 | /* Find a supported LRCLK ratio */ | |
230 | for (i = 0; i < ARRAY_SIZE(lrclk_ratios); i++) { | |
231 | if (wm8741->sysclk / params_rate(params) == | |
232 | lrclk_ratios[i].ratio) | |
233 | break; | |
234 | } | |
235 | ||
236 | /* Should never happen, should be handled by constraints */ | |
237 | if (i == ARRAY_SIZE(lrclk_ratios)) { | |
238 | dev_err(codec->dev, "MCLK/fs ratio %d unsupported\n", | |
239 | wm8741->sysclk / params_rate(params)); | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
243 | /* bit size */ | |
34967ad2 MB |
244 | switch (params_width(params)) { |
245 | case 16: | |
992bee40 | 246 | break; |
34967ad2 | 247 | case 20: |
992bee40 IL |
248 | iface |= 0x0001; |
249 | break; | |
34967ad2 | 250 | case 24: |
992bee40 IL |
251 | iface |= 0x0002; |
252 | break; | |
34967ad2 | 253 | case 32: |
992bee40 IL |
254 | iface |= 0x0003; |
255 | break; | |
256 | default: | |
257 | dev_dbg(codec->dev, "wm8741_hw_params: Unsupported bit size param = %d", | |
34967ad2 | 258 | params_width(params)); |
992bee40 IL |
259 | return -EINVAL; |
260 | } | |
261 | ||
262 | dev_dbg(codec->dev, "wm8741_hw_params: bit size param = %d", | |
34967ad2 | 263 | params_width(params)); |
992bee40 IL |
264 | |
265 | snd_soc_write(codec, WM8741_FORMAT_CONTROL, iface); | |
266 | return 0; | |
267 | } | |
268 | ||
269 | static int wm8741_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
270 | int clk_id, unsigned int freq, int dir) | |
271 | { | |
272 | struct snd_soc_codec *codec = codec_dai->codec; | |
273 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
992bee40 IL |
274 | |
275 | dev_dbg(codec->dev, "wm8741_set_dai_sysclk info: freq=%dHz\n", freq); | |
276 | ||
3fe4a5ee IL |
277 | switch (freq) { |
278 | case 11289600: | |
279 | wm8741->sysclk_constraints = &constraints_11289; | |
280 | wm8741->sysclk = freq; | |
281 | return 0; | |
282 | ||
283 | case 12288000: | |
284 | wm8741->sysclk_constraints = &constraints_12288; | |
285 | wm8741->sysclk = freq; | |
286 | return 0; | |
287 | ||
288 | case 16384000: | |
289 | wm8741->sysclk_constraints = &constraints_16384; | |
290 | wm8741->sysclk = freq; | |
291 | return 0; | |
292 | ||
293 | case 16934400: | |
294 | wm8741->sysclk_constraints = &constraints_16934; | |
295 | wm8741->sysclk = freq; | |
296 | return 0; | |
297 | ||
298 | case 18432000: | |
299 | wm8741->sysclk_constraints = &constraints_18432; | |
300 | wm8741->sysclk = freq; | |
301 | return 0; | |
302 | ||
303 | case 22579200: | |
304 | case 33868800: | |
305 | wm8741->sysclk_constraints = &constraints_22579; | |
306 | wm8741->sysclk = freq; | |
307 | return 0; | |
308 | ||
309 | case 24576000: | |
310 | wm8741->sysclk_constraints = &constraints_24576; | |
311 | wm8741->sysclk = freq; | |
312 | return 0; | |
313 | ||
314 | case 36864000: | |
315 | wm8741->sysclk_constraints = &constraints_36864; | |
316 | wm8741->sysclk = freq; | |
317 | return 0; | |
992bee40 | 318 | } |
3fe4a5ee | 319 | return -EINVAL; |
992bee40 IL |
320 | } |
321 | ||
322 | static int wm8741_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
323 | unsigned int fmt) | |
324 | { | |
325 | struct snd_soc_codec *codec = codec_dai->codec; | |
326 | u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1C3; | |
327 | ||
328 | /* check master/slave audio interface */ | |
329 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
330 | case SND_SOC_DAIFMT_CBS_CFS: | |
331 | break; | |
332 | default: | |
333 | return -EINVAL; | |
334 | } | |
335 | ||
336 | /* interface format */ | |
337 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
338 | case SND_SOC_DAIFMT_I2S: | |
339 | iface |= 0x0008; | |
340 | break; | |
341 | case SND_SOC_DAIFMT_RIGHT_J: | |
342 | break; | |
343 | case SND_SOC_DAIFMT_LEFT_J: | |
344 | iface |= 0x0004; | |
345 | break; | |
346 | case SND_SOC_DAIFMT_DSP_A: | |
3a340104 | 347 | iface |= 0x000C; |
992bee40 IL |
348 | break; |
349 | case SND_SOC_DAIFMT_DSP_B: | |
3a340104 | 350 | iface |= 0x001C; |
992bee40 IL |
351 | break; |
352 | default: | |
353 | return -EINVAL; | |
354 | } | |
355 | ||
356 | /* clock inversion */ | |
357 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
358 | case SND_SOC_DAIFMT_NB_NF: | |
359 | break; | |
360 | case SND_SOC_DAIFMT_IB_IF: | |
361 | iface |= 0x0010; | |
362 | break; | |
363 | case SND_SOC_DAIFMT_IB_NF: | |
364 | iface |= 0x0020; | |
365 | break; | |
366 | case SND_SOC_DAIFMT_NB_IF: | |
367 | iface |= 0x0030; | |
368 | break; | |
369 | default: | |
370 | return -EINVAL; | |
371 | } | |
372 | ||
373 | ||
374 | dev_dbg(codec->dev, "wm8741_set_dai_fmt: Format=%x, Clock Inv=%x\n", | |
375 | fmt & SND_SOC_DAIFMT_FORMAT_MASK, | |
376 | ((fmt & SND_SOC_DAIFMT_INV_MASK))); | |
377 | ||
378 | snd_soc_write(codec, WM8741_FORMAT_CONTROL, iface); | |
379 | return 0; | |
380 | } | |
381 | ||
382 | #define WM8741_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ | |
383 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \ | |
384 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | \ | |
385 | SNDRV_PCM_RATE_192000) | |
386 | ||
387 | #define WM8741_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
388 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
389 | ||
85e7652d | 390 | static const struct snd_soc_dai_ops wm8741_dai_ops = { |
992bee40 IL |
391 | .startup = wm8741_startup, |
392 | .hw_params = wm8741_hw_params, | |
393 | .set_sysclk = wm8741_set_dai_sysclk, | |
394 | .set_fmt = wm8741_set_dai_fmt, | |
395 | }; | |
396 | ||
f0fba2ad | 397 | static struct snd_soc_dai_driver wm8741_dai = { |
30e2d368 | 398 | .name = "wm8741", |
992bee40 IL |
399 | .playback = { |
400 | .stream_name = "Playback", | |
401 | .channels_min = 2, /* Mono modes not yet supported */ | |
402 | .channels_max = 2, | |
403 | .rates = WM8741_RATES, | |
404 | .formats = WM8741_FORMATS, | |
405 | }, | |
406 | .ops = &wm8741_dai_ops, | |
407 | }; | |
992bee40 IL |
408 | |
409 | #ifdef CONFIG_PM | |
f0fba2ad | 410 | static int wm8741_resume(struct snd_soc_codec *codec) |
992bee40 | 411 | { |
df3431b7 | 412 | snd_soc_cache_sync(codec); |
992bee40 IL |
413 | return 0; |
414 | } | |
415 | #else | |
992bee40 IL |
416 | #define wm8741_resume NULL |
417 | #endif | |
418 | ||
f0fba2ad | 419 | static int wm8741_probe(struct snd_soc_codec *codec) |
992bee40 | 420 | { |
f0fba2ad | 421 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); |
992bee40 | 422 | int ret = 0; |
398575db MB |
423 | |
424 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8741->supplies), | |
425 | wm8741->supplies); | |
426 | if (ret != 0) { | |
427 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
428 | goto err_get; | |
429 | } | |
992bee40 | 430 | |
f0fba2ad | 431 | ret = wm8741_reset(codec); |
992bee40 | 432 | if (ret < 0) { |
f0fba2ad | 433 | dev_err(codec->dev, "Failed to issue reset\n"); |
398575db | 434 | goto err_enable; |
992bee40 IL |
435 | } |
436 | ||
f0fba2ad | 437 | /* Change some default settings - latch VU */ |
a1b3b5ee MB |
438 | snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, |
439 | WM8741_UPDATELL, WM8741_UPDATELL); | |
440 | snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, | |
441 | WM8741_UPDATELM, WM8741_UPDATELM); | |
442 | snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, | |
443 | WM8741_UPDATERL, WM8741_UPDATERL); | |
9b5999b1 | 444 | snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, |
a1b3b5ee | 445 | WM8741_UPDATERM, WM8741_UPDATERM); |
f0fba2ad | 446 | |
f0fba2ad | 447 | dev_dbg(codec->dev, "Successful registration\n"); |
992bee40 | 448 | return ret; |
398575db MB |
449 | |
450 | err_enable: | |
451 | regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); | |
452 | err_get: | |
398575db MB |
453 | return ret; |
454 | } | |
455 | ||
456 | static int wm8741_remove(struct snd_soc_codec *codec) | |
457 | { | |
458 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
459 | ||
460 | regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); | |
398575db MB |
461 | |
462 | return 0; | |
992bee40 IL |
463 | } |
464 | ||
f0fba2ad | 465 | static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { |
992bee40 | 466 | .probe = wm8741_probe, |
398575db | 467 | .remove = wm8741_remove, |
992bee40 | 468 | .resume = wm8741_resume, |
0e62780f MB |
469 | |
470 | .controls = wm8741_snd_controls, | |
471 | .num_controls = ARRAY_SIZE(wm8741_snd_controls), | |
472 | .dapm_widgets = wm8741_dapm_widgets, | |
473 | .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), | |
474 | .dapm_routes = wm8741_dapm_routes, | |
475 | .num_dapm_routes = ARRAY_SIZE(wm8741_dapm_routes), | |
992bee40 | 476 | }; |
992bee40 | 477 | |
80080ec5 MB |
478 | static const struct of_device_id wm8741_of_match[] = { |
479 | { .compatible = "wlf,wm8741", }, | |
480 | { } | |
481 | }; | |
482 | MODULE_DEVICE_TABLE(of, wm8741_of_match); | |
483 | ||
fe98c0cf MB |
484 | static const struct regmap_config wm8741_regmap = { |
485 | .reg_bits = 7, | |
486 | .val_bits = 9, | |
487 | .max_register = WM8741_MAX_REGISTER, | |
488 | ||
489 | .reg_defaults = wm8741_reg_defaults, | |
490 | .num_reg_defaults = ARRAY_SIZE(wm8741_reg_defaults), | |
491 | .cache_type = REGCACHE_RBTREE, | |
492 | ||
493 | .readable_reg = wm8741_readable, | |
494 | }; | |
495 | ||
26090a83 | 496 | #if IS_ENABLED(CONFIG_I2C) |
f0fba2ad LG |
497 | static int wm8741_i2c_probe(struct i2c_client *i2c, |
498 | const struct i2c_device_id *id) | |
992bee40 | 499 | { |
f0fba2ad | 500 | struct wm8741_priv *wm8741; |
d9780550 | 501 | int ret, i; |
992bee40 | 502 | |
5aefb306 MB |
503 | wm8741 = devm_kzalloc(&i2c->dev, sizeof(struct wm8741_priv), |
504 | GFP_KERNEL); | |
f0fba2ad LG |
505 | if (wm8741 == NULL) |
506 | return -ENOMEM; | |
992bee40 | 507 | |
d9780550 MB |
508 | for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) |
509 | wm8741->supplies[i].supply = wm8741_supply_names[i]; | |
510 | ||
511 | ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8741->supplies), | |
512 | wm8741->supplies); | |
513 | if (ret != 0) { | |
fe98c0cf MB |
514 | dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); |
515 | return ret; | |
516 | } | |
517 | ||
fd64c455 | 518 | wm8741->regmap = devm_regmap_init_i2c(i2c, &wm8741_regmap); |
fe98c0cf MB |
519 | if (IS_ERR(wm8741->regmap)) { |
520 | ret = PTR_ERR(wm8741->regmap); | |
521 | dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); | |
522 | return ret; | |
d9780550 MB |
523 | } |
524 | ||
f0fba2ad | 525 | i2c_set_clientdata(i2c, wm8741); |
992bee40 | 526 | |
398575db MB |
527 | ret = snd_soc_register_codec(&i2c->dev, |
528 | &soc_codec_dev_wm8741, &wm8741_dai, 1); | |
992bee40 | 529 | |
992bee40 IL |
530 | return ret; |
531 | } | |
532 | ||
f0fba2ad | 533 | static int wm8741_i2c_remove(struct i2c_client *client) |
992bee40 | 534 | { |
f0fba2ad | 535 | snd_soc_unregister_codec(&client->dev); |
992bee40 IL |
536 | return 0; |
537 | } | |
538 | ||
539 | static const struct i2c_device_id wm8741_i2c_id[] = { | |
540 | { "wm8741", 0 }, | |
541 | { } | |
542 | }; | |
543 | MODULE_DEVICE_TABLE(i2c, wm8741_i2c_id); | |
544 | ||
992bee40 IL |
545 | static struct i2c_driver wm8741_i2c_driver = { |
546 | .driver = { | |
0473e61b | 547 | .name = "wm8741", |
992bee40 | 548 | .owner = THIS_MODULE, |
80080ec5 | 549 | .of_match_table = wm8741_of_match, |
992bee40 IL |
550 | }, |
551 | .probe = wm8741_i2c_probe, | |
f0fba2ad | 552 | .remove = wm8741_i2c_remove, |
992bee40 IL |
553 | .id_table = wm8741_i2c_id, |
554 | }; | |
555 | #endif | |
556 | ||
39e9b8d2 | 557 | #if defined(CONFIG_SPI_MASTER) |
7a79e94e | 558 | static int wm8741_spi_probe(struct spi_device *spi) |
39e9b8d2 MB |
559 | { |
560 | struct wm8741_priv *wm8741; | |
d9780550 | 561 | int ret, i; |
39e9b8d2 | 562 | |
5aefb306 MB |
563 | wm8741 = devm_kzalloc(&spi->dev, sizeof(struct wm8741_priv), |
564 | GFP_KERNEL); | |
39e9b8d2 MB |
565 | if (wm8741 == NULL) |
566 | return -ENOMEM; | |
567 | ||
d9780550 MB |
568 | for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) |
569 | wm8741->supplies[i].supply = wm8741_supply_names[i]; | |
570 | ||
fe98c0cf | 571 | ret = devm_regulator_bulk_get(&spi->dev, ARRAY_SIZE(wm8741->supplies), |
d9780550 MB |
572 | wm8741->supplies); |
573 | if (ret != 0) { | |
574 | dev_err(&spi->dev, "Failed to request supplies: %d\n", ret); | |
fe98c0cf MB |
575 | return ret; |
576 | } | |
577 | ||
fd64c455 | 578 | wm8741->regmap = devm_regmap_init_spi(spi, &wm8741_regmap); |
fe98c0cf MB |
579 | if (IS_ERR(wm8741->regmap)) { |
580 | ret = PTR_ERR(wm8741->regmap); | |
581 | dev_err(&spi->dev, "Failed to init regmap: %d\n", ret); | |
582 | return ret; | |
d9780550 MB |
583 | } |
584 | ||
39e9b8d2 MB |
585 | spi_set_drvdata(spi, wm8741); |
586 | ||
587 | ret = snd_soc_register_codec(&spi->dev, | |
588 | &soc_codec_dev_wm8741, &wm8741_dai, 1); | |
39e9b8d2 MB |
589 | return ret; |
590 | } | |
591 | ||
7a79e94e | 592 | static int wm8741_spi_remove(struct spi_device *spi) |
39e9b8d2 MB |
593 | { |
594 | snd_soc_unregister_codec(&spi->dev); | |
39e9b8d2 MB |
595 | return 0; |
596 | } | |
597 | ||
598 | static struct spi_driver wm8741_spi_driver = { | |
599 | .driver = { | |
600 | .name = "wm8741", | |
601 | .owner = THIS_MODULE, | |
80080ec5 | 602 | .of_match_table = wm8741_of_match, |
39e9b8d2 MB |
603 | }, |
604 | .probe = wm8741_spi_probe, | |
7a79e94e | 605 | .remove = wm8741_spi_remove, |
39e9b8d2 MB |
606 | }; |
607 | #endif /* CONFIG_SPI_MASTER */ | |
608 | ||
992bee40 IL |
609 | static int __init wm8741_modinit(void) |
610 | { | |
f0fba2ad LG |
611 | int ret = 0; |
612 | ||
26090a83 | 613 | #if IS_ENABLED(CONFIG_I2C) |
992bee40 | 614 | ret = i2c_add_driver(&wm8741_i2c_driver); |
3fe4a5ee | 615 | if (ret != 0) |
f0fba2ad | 616 | pr_err("Failed to register WM8741 I2C driver: %d\n", ret); |
992bee40 | 617 | #endif |
39e9b8d2 MB |
618 | #if defined(CONFIG_SPI_MASTER) |
619 | ret = spi_register_driver(&wm8741_spi_driver); | |
620 | if (ret != 0) { | |
621 | printk(KERN_ERR "Failed to register wm8741 SPI driver: %d\n", | |
622 | ret); | |
623 | } | |
624 | #endif | |
f0fba2ad LG |
625 | |
626 | return ret; | |
992bee40 IL |
627 | } |
628 | module_init(wm8741_modinit); | |
629 | ||
630 | static void __exit wm8741_exit(void) | |
631 | { | |
39e9b8d2 MB |
632 | #if defined(CONFIG_SPI_MASTER) |
633 | spi_unregister_driver(&wm8741_spi_driver); | |
634 | #endif | |
26090a83 | 635 | #if IS_ENABLED(CONFIG_I2C) |
992bee40 IL |
636 | i2c_del_driver(&wm8741_i2c_driver); |
637 | #endif | |
638 | } | |
639 | module_exit(wm8741_exit); | |
640 | ||
641 | MODULE_DESCRIPTION("ASoC WM8741 driver"); | |
642 | MODULE_AUTHOR("Ian Lartey <ian@opensource.wolfsonmicro.com>"); | |
643 | MODULE_LICENSE("GPL"); |