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> |
992bee40 IL |
21 | #include <linux/regulator/consumer.h> |
22 | #include <linux/slab.h> | |
80080ec5 | 23 | #include <linux/of_device.h> |
992bee40 IL |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
992bee40 IL |
28 | #include <sound/initval.h> |
29 | #include <sound/tlv.h> | |
30 | ||
31 | #include "wm8741.h" | |
32 | ||
992bee40 IL |
33 | #define WM8741_NUM_SUPPLIES 2 |
34 | static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { | |
35 | "AVDD", | |
36 | "DVDD", | |
37 | }; | |
38 | ||
3fe4a5ee | 39 | #define WM8741_NUM_RATES 6 |
992bee40 IL |
40 | |
41 | /* codec private data */ | |
42 | struct wm8741_priv { | |
f0fba2ad | 43 | enum snd_soc_control_type control_type; |
992bee40 IL |
44 | struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; |
45 | unsigned int sysclk; | |
3fe4a5ee | 46 | struct snd_pcm_hw_constraint_list *sysclk_constraints; |
992bee40 IL |
47 | }; |
48 | ||
49 | static const u16 wm8741_reg_defaults[WM8741_REGISTER_COUNT] = { | |
50 | 0x0000, /* R0 - DACLLSB Attenuation */ | |
51 | 0x0000, /* R1 - DACLMSB Attenuation */ | |
52 | 0x0000, /* R2 - DACRLSB Attenuation */ | |
53 | 0x0000, /* R3 - DACRMSB Attenuation */ | |
54 | 0x0000, /* R4 - Volume Control */ | |
55 | 0x000A, /* R5 - Format Control */ | |
56 | 0x0000, /* R6 - Filter Control */ | |
57 | 0x0000, /* R7 - Mode Control 1 */ | |
58 | 0x0002, /* R8 - Mode Control 2 */ | |
59 | 0x0000, /* R9 - Reset */ | |
60 | 0x0002, /* R32 - ADDITONAL_CONTROL_1 */ | |
61 | }; | |
62 | ||
63 | ||
64 | static int wm8741_reset(struct snd_soc_codec *codec) | |
65 | { | |
66 | return snd_soc_write(codec, WM8741_RESET, 0); | |
67 | } | |
68 | ||
69 | static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); | |
70 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); | |
71 | ||
72 | static const struct snd_kcontrol_new wm8741_snd_controls[] = { | |
73 | SOC_DOUBLE_R_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, | |
74 | WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), | |
75 | SOC_DOUBLE_R_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, | |
76 | WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), | |
77 | }; | |
78 | ||
79 | static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { | |
80 | SND_SOC_DAPM_DAC("DACL", "Playback", SND_SOC_NOPM, 0, 0), | |
81 | SND_SOC_DAPM_DAC("DACR", "Playback", SND_SOC_NOPM, 0, 0), | |
82 | SND_SOC_DAPM_OUTPUT("VOUTLP"), | |
83 | SND_SOC_DAPM_OUTPUT("VOUTLN"), | |
84 | SND_SOC_DAPM_OUTPUT("VOUTRP"), | |
85 | SND_SOC_DAPM_OUTPUT("VOUTRN"), | |
86 | }; | |
87 | ||
0e62780f | 88 | static const struct snd_soc_dapm_route wm8741_dapm_routes[] = { |
992bee40 IL |
89 | { "VOUTLP", NULL, "DACL" }, |
90 | { "VOUTLN", NULL, "DACL" }, | |
91 | { "VOUTRP", NULL, "DACR" }, | |
92 | { "VOUTRN", NULL, "DACR" }, | |
93 | }; | |
94 | ||
992bee40 IL |
95 | static struct { |
96 | int value; | |
97 | int ratio; | |
98 | } lrclk_ratios[WM8741_NUM_RATES] = { | |
3fe4a5ee IL |
99 | { 1, 128 }, |
100 | { 2, 192 }, | |
101 | { 3, 256 }, | |
102 | { 4, 384 }, | |
103 | { 5, 512 }, | |
104 | { 6, 768 }, | |
105 | }; | |
106 | ||
107 | static unsigned int rates_11289[] = { | |
108 | 44100, 88235, | |
109 | }; | |
110 | ||
111 | static struct snd_pcm_hw_constraint_list constraints_11289 = { | |
112 | .count = ARRAY_SIZE(rates_11289), | |
113 | .list = rates_11289, | |
114 | }; | |
115 | ||
116 | static unsigned int rates_12288[] = { | |
117 | 32000, 48000, 96000, | |
118 | }; | |
119 | ||
120 | static struct snd_pcm_hw_constraint_list constraints_12288 = { | |
121 | .count = ARRAY_SIZE(rates_12288), | |
122 | .list = rates_12288, | |
123 | }; | |
124 | ||
125 | static unsigned int rates_16384[] = { | |
126 | 32000, | |
127 | }; | |
128 | ||
129 | static struct snd_pcm_hw_constraint_list constraints_16384 = { | |
130 | .count = ARRAY_SIZE(rates_16384), | |
131 | .list = rates_16384, | |
132 | }; | |
133 | ||
134 | static unsigned int rates_16934[] = { | |
135 | 44100, 88235, | |
136 | }; | |
137 | ||
138 | static struct snd_pcm_hw_constraint_list constraints_16934 = { | |
139 | .count = ARRAY_SIZE(rates_16934), | |
140 | .list = rates_16934, | |
141 | }; | |
142 | ||
143 | static unsigned int rates_18432[] = { | |
144 | 48000, 96000, | |
145 | }; | |
146 | ||
147 | static struct snd_pcm_hw_constraint_list constraints_18432 = { | |
148 | .count = ARRAY_SIZE(rates_18432), | |
149 | .list = rates_18432, | |
150 | }; | |
151 | ||
152 | static unsigned int rates_22579[] = { | |
153 | 44100, 88235, 1764000 | |
154 | }; | |
155 | ||
156 | static struct snd_pcm_hw_constraint_list constraints_22579 = { | |
157 | .count = ARRAY_SIZE(rates_22579), | |
158 | .list = rates_22579, | |
159 | }; | |
160 | ||
161 | static unsigned int rates_24576[] = { | |
162 | 32000, 48000, 96000, 192000 | |
163 | }; | |
164 | ||
165 | static struct snd_pcm_hw_constraint_list constraints_24576 = { | |
166 | .count = ARRAY_SIZE(rates_24576), | |
167 | .list = rates_24576, | |
168 | }; | |
169 | ||
170 | static unsigned int rates_36864[] = { | |
171 | 48000, 96000, 19200 | |
172 | }; | |
173 | ||
174 | static struct snd_pcm_hw_constraint_list constraints_36864 = { | |
175 | .count = ARRAY_SIZE(rates_36864), | |
176 | .list = rates_36864, | |
992bee40 IL |
177 | }; |
178 | ||
179 | ||
180 | static int wm8741_startup(struct snd_pcm_substream *substream, | |
181 | struct snd_soc_dai *dai) | |
182 | { | |
183 | struct snd_soc_codec *codec = dai->codec; | |
184 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
185 | ||
186 | /* The set of sample rates that can be supported depends on the | |
187 | * MCLK supplied to the CODEC - enforce this. | |
188 | */ | |
189 | if (!wm8741->sysclk) { | |
190 | dev_err(codec->dev, | |
191 | "No MCLK configured, call set_sysclk() on init\n"); | |
192 | return -EINVAL; | |
193 | } | |
194 | ||
195 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
196 | SNDRV_PCM_HW_PARAM_RATE, | |
3fe4a5ee | 197 | wm8741->sysclk_constraints); |
992bee40 IL |
198 | |
199 | return 0; | |
200 | } | |
201 | ||
202 | static int wm8741_hw_params(struct snd_pcm_substream *substream, | |
203 | struct snd_pcm_hw_params *params, | |
204 | struct snd_soc_dai *dai) | |
205 | { | |
e6968a17 | 206 | struct snd_soc_codec *codec = dai->codec; |
992bee40 IL |
207 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); |
208 | u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1FC; | |
209 | int i; | |
210 | ||
211 | /* Find a supported LRCLK ratio */ | |
212 | for (i = 0; i < ARRAY_SIZE(lrclk_ratios); i++) { | |
213 | if (wm8741->sysclk / params_rate(params) == | |
214 | lrclk_ratios[i].ratio) | |
215 | break; | |
216 | } | |
217 | ||
218 | /* Should never happen, should be handled by constraints */ | |
219 | if (i == ARRAY_SIZE(lrclk_ratios)) { | |
220 | dev_err(codec->dev, "MCLK/fs ratio %d unsupported\n", | |
221 | wm8741->sysclk / params_rate(params)); | |
222 | return -EINVAL; | |
223 | } | |
224 | ||
225 | /* bit size */ | |
226 | switch (params_format(params)) { | |
227 | case SNDRV_PCM_FORMAT_S16_LE: | |
228 | break; | |
229 | case SNDRV_PCM_FORMAT_S20_3LE: | |
230 | iface |= 0x0001; | |
231 | break; | |
232 | case SNDRV_PCM_FORMAT_S24_LE: | |
233 | iface |= 0x0002; | |
234 | break; | |
235 | case SNDRV_PCM_FORMAT_S32_LE: | |
236 | iface |= 0x0003; | |
237 | break; | |
238 | default: | |
239 | dev_dbg(codec->dev, "wm8741_hw_params: Unsupported bit size param = %d", | |
240 | params_format(params)); | |
241 | return -EINVAL; | |
242 | } | |
243 | ||
244 | dev_dbg(codec->dev, "wm8741_hw_params: bit size param = %d", | |
245 | params_format(params)); | |
246 | ||
247 | snd_soc_write(codec, WM8741_FORMAT_CONTROL, iface); | |
248 | return 0; | |
249 | } | |
250 | ||
251 | static int wm8741_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
252 | int clk_id, unsigned int freq, int dir) | |
253 | { | |
254 | struct snd_soc_codec *codec = codec_dai->codec; | |
255 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
992bee40 IL |
256 | |
257 | dev_dbg(codec->dev, "wm8741_set_dai_sysclk info: freq=%dHz\n", freq); | |
258 | ||
3fe4a5ee IL |
259 | switch (freq) { |
260 | case 11289600: | |
261 | wm8741->sysclk_constraints = &constraints_11289; | |
262 | wm8741->sysclk = freq; | |
263 | return 0; | |
264 | ||
265 | case 12288000: | |
266 | wm8741->sysclk_constraints = &constraints_12288; | |
267 | wm8741->sysclk = freq; | |
268 | return 0; | |
269 | ||
270 | case 16384000: | |
271 | wm8741->sysclk_constraints = &constraints_16384; | |
272 | wm8741->sysclk = freq; | |
273 | return 0; | |
274 | ||
275 | case 16934400: | |
276 | wm8741->sysclk_constraints = &constraints_16934; | |
277 | wm8741->sysclk = freq; | |
278 | return 0; | |
279 | ||
280 | case 18432000: | |
281 | wm8741->sysclk_constraints = &constraints_18432; | |
282 | wm8741->sysclk = freq; | |
283 | return 0; | |
284 | ||
285 | case 22579200: | |
286 | case 33868800: | |
287 | wm8741->sysclk_constraints = &constraints_22579; | |
288 | wm8741->sysclk = freq; | |
289 | return 0; | |
290 | ||
291 | case 24576000: | |
292 | wm8741->sysclk_constraints = &constraints_24576; | |
293 | wm8741->sysclk = freq; | |
294 | return 0; | |
295 | ||
296 | case 36864000: | |
297 | wm8741->sysclk_constraints = &constraints_36864; | |
298 | wm8741->sysclk = freq; | |
299 | return 0; | |
992bee40 | 300 | } |
3fe4a5ee | 301 | return -EINVAL; |
992bee40 IL |
302 | } |
303 | ||
304 | static int wm8741_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
305 | unsigned int fmt) | |
306 | { | |
307 | struct snd_soc_codec *codec = codec_dai->codec; | |
308 | u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1C3; | |
309 | ||
310 | /* check master/slave audio interface */ | |
311 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
312 | case SND_SOC_DAIFMT_CBS_CFS: | |
313 | break; | |
314 | default: | |
315 | return -EINVAL; | |
316 | } | |
317 | ||
318 | /* interface format */ | |
319 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
320 | case SND_SOC_DAIFMT_I2S: | |
321 | iface |= 0x0008; | |
322 | break; | |
323 | case SND_SOC_DAIFMT_RIGHT_J: | |
324 | break; | |
325 | case SND_SOC_DAIFMT_LEFT_J: | |
326 | iface |= 0x0004; | |
327 | break; | |
328 | case SND_SOC_DAIFMT_DSP_A: | |
3a340104 | 329 | iface |= 0x000C; |
992bee40 IL |
330 | break; |
331 | case SND_SOC_DAIFMT_DSP_B: | |
3a340104 | 332 | iface |= 0x001C; |
992bee40 IL |
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_IB_IF: | |
343 | iface |= 0x0010; | |
344 | break; | |
345 | case SND_SOC_DAIFMT_IB_NF: | |
346 | iface |= 0x0020; | |
347 | break; | |
348 | case SND_SOC_DAIFMT_NB_IF: | |
349 | iface |= 0x0030; | |
350 | break; | |
351 | default: | |
352 | return -EINVAL; | |
353 | } | |
354 | ||
355 | ||
356 | dev_dbg(codec->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_write(codec, WM8741_FORMAT_CONTROL, iface); | |
361 | return 0; | |
362 | } | |
363 | ||
364 | #define WM8741_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ | |
365 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \ | |
366 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | \ | |
367 | SNDRV_PCM_RATE_192000) | |
368 | ||
369 | #define WM8741_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
370 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
371 | ||
85e7652d | 372 | static const struct snd_soc_dai_ops wm8741_dai_ops = { |
992bee40 IL |
373 | .startup = wm8741_startup, |
374 | .hw_params = wm8741_hw_params, | |
375 | .set_sysclk = wm8741_set_dai_sysclk, | |
376 | .set_fmt = wm8741_set_dai_fmt, | |
377 | }; | |
378 | ||
f0fba2ad | 379 | static struct snd_soc_dai_driver wm8741_dai = { |
30e2d368 | 380 | .name = "wm8741", |
992bee40 IL |
381 | .playback = { |
382 | .stream_name = "Playback", | |
383 | .channels_min = 2, /* Mono modes not yet supported */ | |
384 | .channels_max = 2, | |
385 | .rates = WM8741_RATES, | |
386 | .formats = WM8741_FORMATS, | |
387 | }, | |
388 | .ops = &wm8741_dai_ops, | |
389 | }; | |
992bee40 IL |
390 | |
391 | #ifdef CONFIG_PM | |
f0fba2ad | 392 | static int wm8741_resume(struct snd_soc_codec *codec) |
992bee40 | 393 | { |
df3431b7 | 394 | snd_soc_cache_sync(codec); |
992bee40 IL |
395 | return 0; |
396 | } | |
397 | #else | |
398 | #define wm8741_suspend NULL | |
399 | #define wm8741_resume NULL | |
400 | #endif | |
401 | ||
f0fba2ad | 402 | static int wm8741_probe(struct snd_soc_codec *codec) |
992bee40 | 403 | { |
f0fba2ad | 404 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); |
992bee40 | 405 | int ret = 0; |
398575db MB |
406 | int i; |
407 | ||
408 | for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) | |
409 | wm8741->supplies[i].supply = wm8741_supply_names[i]; | |
410 | ||
411 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8741->supplies), | |
412 | wm8741->supplies); | |
413 | if (ret != 0) { | |
414 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
415 | goto err; | |
416 | } | |
417 | ||
418 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8741->supplies), | |
419 | wm8741->supplies); | |
420 | if (ret != 0) { | |
421 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
422 | goto err_get; | |
423 | } | |
992bee40 | 424 | |
f0fba2ad LG |
425 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8741->control_type); |
426 | if (ret != 0) { | |
427 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
398575db | 428 | goto err_enable; |
992bee40 IL |
429 | } |
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: | |
453 | regulator_bulk_free(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); | |
454 | err: | |
455 | return ret; | |
456 | } | |
457 | ||
458 | static int wm8741_remove(struct snd_soc_codec *codec) | |
459 | { | |
460 | struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); | |
461 | ||
462 | regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); | |
463 | regulator_bulk_free(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); | |
464 | ||
465 | return 0; | |
992bee40 IL |
466 | } |
467 | ||
f0fba2ad | 468 | static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { |
992bee40 | 469 | .probe = wm8741_probe, |
398575db | 470 | .remove = wm8741_remove, |
992bee40 | 471 | .resume = wm8741_resume, |
e5eec34c | 472 | .reg_cache_size = ARRAY_SIZE(wm8741_reg_defaults), |
f0fba2ad | 473 | .reg_word_size = sizeof(u16), |
0aa34b16 | 474 | .reg_cache_default = wm8741_reg_defaults, |
0e62780f MB |
475 | |
476 | .controls = wm8741_snd_controls, | |
477 | .num_controls = ARRAY_SIZE(wm8741_snd_controls), | |
478 | .dapm_widgets = wm8741_dapm_widgets, | |
479 | .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), | |
480 | .dapm_routes = wm8741_dapm_routes, | |
481 | .num_dapm_routes = ARRAY_SIZE(wm8741_dapm_routes), | |
992bee40 | 482 | }; |
992bee40 | 483 | |
80080ec5 MB |
484 | static const struct of_device_id wm8741_of_match[] = { |
485 | { .compatible = "wlf,wm8741", }, | |
486 | { } | |
487 | }; | |
488 | MODULE_DEVICE_TABLE(of, wm8741_of_match); | |
489 | ||
f0fba2ad LG |
490 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
491 | static int wm8741_i2c_probe(struct i2c_client *i2c, | |
492 | const struct i2c_device_id *id) | |
992bee40 | 493 | { |
f0fba2ad | 494 | struct wm8741_priv *wm8741; |
398575db | 495 | int ret; |
992bee40 | 496 | |
5aefb306 MB |
497 | wm8741 = devm_kzalloc(&i2c->dev, sizeof(struct wm8741_priv), |
498 | GFP_KERNEL); | |
f0fba2ad LG |
499 | if (wm8741 == NULL) |
500 | return -ENOMEM; | |
992bee40 | 501 | |
f0fba2ad | 502 | i2c_set_clientdata(i2c, wm8741); |
f0fba2ad | 503 | wm8741->control_type = SND_SOC_I2C; |
992bee40 | 504 | |
398575db MB |
505 | ret = snd_soc_register_codec(&i2c->dev, |
506 | &soc_codec_dev_wm8741, &wm8741_dai, 1); | |
992bee40 | 507 | |
992bee40 IL |
508 | return ret; |
509 | } | |
510 | ||
f0fba2ad | 511 | static int wm8741_i2c_remove(struct i2c_client *client) |
992bee40 | 512 | { |
f0fba2ad | 513 | snd_soc_unregister_codec(&client->dev); |
992bee40 IL |
514 | return 0; |
515 | } | |
516 | ||
517 | static const struct i2c_device_id wm8741_i2c_id[] = { | |
518 | { "wm8741", 0 }, | |
519 | { } | |
520 | }; | |
521 | MODULE_DEVICE_TABLE(i2c, wm8741_i2c_id); | |
522 | ||
992bee40 IL |
523 | static struct i2c_driver wm8741_i2c_driver = { |
524 | .driver = { | |
0473e61b | 525 | .name = "wm8741", |
992bee40 | 526 | .owner = THIS_MODULE, |
80080ec5 | 527 | .of_match_table = wm8741_of_match, |
992bee40 IL |
528 | }, |
529 | .probe = wm8741_i2c_probe, | |
f0fba2ad | 530 | .remove = wm8741_i2c_remove, |
992bee40 IL |
531 | .id_table = wm8741_i2c_id, |
532 | }; | |
533 | #endif | |
534 | ||
39e9b8d2 MB |
535 | #if defined(CONFIG_SPI_MASTER) |
536 | static int __devinit wm8741_spi_probe(struct spi_device *spi) | |
537 | { | |
538 | struct wm8741_priv *wm8741; | |
539 | int ret; | |
540 | ||
5aefb306 MB |
541 | wm8741 = devm_kzalloc(&spi->dev, sizeof(struct wm8741_priv), |
542 | GFP_KERNEL); | |
39e9b8d2 MB |
543 | if (wm8741 == NULL) |
544 | return -ENOMEM; | |
545 | ||
546 | wm8741->control_type = SND_SOC_SPI; | |
547 | spi_set_drvdata(spi, wm8741); | |
548 | ||
549 | ret = snd_soc_register_codec(&spi->dev, | |
550 | &soc_codec_dev_wm8741, &wm8741_dai, 1); | |
39e9b8d2 MB |
551 | return ret; |
552 | } | |
553 | ||
554 | static int __devexit wm8741_spi_remove(struct spi_device *spi) | |
555 | { | |
556 | snd_soc_unregister_codec(&spi->dev); | |
39e9b8d2 MB |
557 | return 0; |
558 | } | |
559 | ||
560 | static struct spi_driver wm8741_spi_driver = { | |
561 | .driver = { | |
562 | .name = "wm8741", | |
563 | .owner = THIS_MODULE, | |
80080ec5 | 564 | .of_match_table = wm8741_of_match, |
39e9b8d2 MB |
565 | }, |
566 | .probe = wm8741_spi_probe, | |
567 | .remove = __devexit_p(wm8741_spi_remove), | |
568 | }; | |
569 | #endif /* CONFIG_SPI_MASTER */ | |
570 | ||
992bee40 IL |
571 | static int __init wm8741_modinit(void) |
572 | { | |
f0fba2ad LG |
573 | int ret = 0; |
574 | ||
992bee40 IL |
575 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
576 | ret = i2c_add_driver(&wm8741_i2c_driver); | |
3fe4a5ee | 577 | if (ret != 0) |
f0fba2ad | 578 | pr_err("Failed to register WM8741 I2C driver: %d\n", ret); |
992bee40 | 579 | #endif |
39e9b8d2 MB |
580 | #if defined(CONFIG_SPI_MASTER) |
581 | ret = spi_register_driver(&wm8741_spi_driver); | |
582 | if (ret != 0) { | |
583 | printk(KERN_ERR "Failed to register wm8741 SPI driver: %d\n", | |
584 | ret); | |
585 | } | |
586 | #endif | |
f0fba2ad LG |
587 | |
588 | return ret; | |
992bee40 IL |
589 | } |
590 | module_init(wm8741_modinit); | |
591 | ||
592 | static void __exit wm8741_exit(void) | |
593 | { | |
39e9b8d2 MB |
594 | #if defined(CONFIG_SPI_MASTER) |
595 | spi_unregister_driver(&wm8741_spi_driver); | |
596 | #endif | |
992bee40 IL |
597 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
598 | i2c_del_driver(&wm8741_i2c_driver); | |
599 | #endif | |
600 | } | |
601 | module_exit(wm8741_exit); | |
602 | ||
603 | MODULE_DESCRIPTION("ASoC WM8741 driver"); | |
604 | MODULE_AUTHOR("Ian Lartey <ian@opensource.wolfsonmicro.com>"); | |
605 | MODULE_LICENSE("GPL"); |