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631ed8a2 LPC |
1 | /* |
2 | * Driver for ADAU1701 SigmaDSP processor | |
3 | * | |
4 | * Copyright 2011 Analog Devices Inc. | |
5 | * Author: Lars-Peter Clausen <lars@metafoo.de> | |
6 | * based on an inital version by Cliff Cai <cliff.cai@analog.com> | |
7 | * | |
8 | * Licensed under the GPL-2 or later. | |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/i2c.h> | |
14 | #include <linux/delay.h> | |
631ed8a2 LPC |
15 | #include <linux/slab.h> |
16 | #include <sound/core.h> | |
17 | #include <sound/pcm.h> | |
18 | #include <sound/pcm_params.h> | |
19 | #include <sound/soc.h> | |
20 | ||
40216ce7 | 21 | #include "sigmadsp.h" |
631ed8a2 LPC |
22 | #include "adau1701.h" |
23 | ||
24 | #define ADAU1701_DSPCTRL 0x1c | |
25 | #define ADAU1701_SEROCTL 0x1e | |
26 | #define ADAU1701_SERICTL 0x1f | |
27 | ||
28 | #define ADAU1701_AUXNPOW 0x22 | |
29 | ||
30 | #define ADAU1701_OSCIPOW 0x26 | |
31 | #define ADAU1701_DACSET 0x27 | |
32 | ||
33 | #define ADAU1701_NUM_REGS 0x28 | |
34 | ||
35 | #define ADAU1701_DSPCTRL_CR (1 << 2) | |
36 | #define ADAU1701_DSPCTRL_DAM (1 << 3) | |
37 | #define ADAU1701_DSPCTRL_ADM (1 << 4) | |
38 | #define ADAU1701_DSPCTRL_SR_48 0x00 | |
39 | #define ADAU1701_DSPCTRL_SR_96 0x01 | |
40 | #define ADAU1701_DSPCTRL_SR_192 0x02 | |
41 | #define ADAU1701_DSPCTRL_SR_MASK 0x03 | |
42 | ||
43 | #define ADAU1701_SEROCTL_INV_LRCLK 0x2000 | |
44 | #define ADAU1701_SEROCTL_INV_BCLK 0x1000 | |
45 | #define ADAU1701_SEROCTL_MASTER 0x0800 | |
46 | ||
47 | #define ADAU1701_SEROCTL_OBF16 0x0000 | |
48 | #define ADAU1701_SEROCTL_OBF8 0x0200 | |
49 | #define ADAU1701_SEROCTL_OBF4 0x0400 | |
50 | #define ADAU1701_SEROCTL_OBF2 0x0600 | |
51 | #define ADAU1701_SEROCTL_OBF_MASK 0x0600 | |
52 | ||
53 | #define ADAU1701_SEROCTL_OLF1024 0x0000 | |
54 | #define ADAU1701_SEROCTL_OLF512 0x0080 | |
55 | #define ADAU1701_SEROCTL_OLF256 0x0100 | |
56 | #define ADAU1701_SEROCTL_OLF_MASK 0x0180 | |
57 | ||
58 | #define ADAU1701_SEROCTL_MSB_DEALY1 0x0000 | |
59 | #define ADAU1701_SEROCTL_MSB_DEALY0 0x0004 | |
60 | #define ADAU1701_SEROCTL_MSB_DEALY8 0x0008 | |
61 | #define ADAU1701_SEROCTL_MSB_DEALY12 0x000c | |
62 | #define ADAU1701_SEROCTL_MSB_DEALY16 0x0010 | |
63 | #define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c | |
64 | ||
65 | #define ADAU1701_SEROCTL_WORD_LEN_24 0x0000 | |
66 | #define ADAU1701_SEROCTL_WORD_LEN_20 0x0001 | |
67 | #define ADAU1701_SEROCTL_WORD_LEN_16 0x0010 | |
68 | #define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003 | |
69 | ||
70 | #define ADAU1701_AUXNPOW_VBPD 0x40 | |
71 | #define ADAU1701_AUXNPOW_VRPD 0x20 | |
72 | ||
73 | #define ADAU1701_SERICTL_I2S 0 | |
74 | #define ADAU1701_SERICTL_LEFTJ 1 | |
75 | #define ADAU1701_SERICTL_TDM 2 | |
76 | #define ADAU1701_SERICTL_RIGHTJ_24 3 | |
77 | #define ADAU1701_SERICTL_RIGHTJ_20 4 | |
78 | #define ADAU1701_SERICTL_RIGHTJ_18 5 | |
79 | #define ADAU1701_SERICTL_RIGHTJ_16 6 | |
80 | #define ADAU1701_SERICTL_MODE_MASK 7 | |
81 | #define ADAU1701_SERICTL_INV_BCLK BIT(3) | |
82 | #define ADAU1701_SERICTL_INV_LRCLK BIT(4) | |
83 | ||
84 | #define ADAU1701_OSCIPOW_OPD 0x04 | |
85 | #define ADAU1701_DACSET_DACINIT 1 | |
86 | ||
87 | #define ADAU1701_FIRMWARE "adau1701.bin" | |
88 | ||
89 | struct adau1701 { | |
90 | unsigned int dai_fmt; | |
91 | }; | |
92 | ||
93 | static const struct snd_kcontrol_new adau1701_controls[] = { | |
94 | SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0), | |
95 | }; | |
96 | ||
97 | static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = { | |
98 | SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1), | |
99 | SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1), | |
100 | SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1), | |
101 | SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1), | |
102 | SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1), | |
103 | ||
104 | SND_SOC_DAPM_OUTPUT("OUT0"), | |
105 | SND_SOC_DAPM_OUTPUT("OUT1"), | |
106 | SND_SOC_DAPM_OUTPUT("OUT2"), | |
107 | SND_SOC_DAPM_OUTPUT("OUT3"), | |
108 | SND_SOC_DAPM_INPUT("IN0"), | |
109 | SND_SOC_DAPM_INPUT("IN1"), | |
110 | }; | |
111 | ||
112 | static const struct snd_soc_dapm_route adau1701_dapm_routes[] = { | |
113 | { "OUT0", NULL, "DAC0" }, | |
114 | { "OUT1", NULL, "DAC1" }, | |
115 | { "OUT2", NULL, "DAC2" }, | |
116 | { "OUT3", NULL, "DAC3" }, | |
117 | ||
118 | { "ADC", NULL, "IN0" }, | |
119 | { "ADC", NULL, "IN1" }, | |
120 | }; | |
121 | ||
122 | static unsigned int adau1701_register_size(struct snd_soc_codec *codec, | |
123 | unsigned int reg) | |
124 | { | |
125 | switch (reg) { | |
126 | case ADAU1701_DSPCTRL: | |
127 | case ADAU1701_SEROCTL: | |
128 | case ADAU1701_AUXNPOW: | |
129 | case ADAU1701_OSCIPOW: | |
130 | case ADAU1701_DACSET: | |
131 | return 2; | |
132 | case ADAU1701_SERICTL: | |
133 | return 1; | |
134 | } | |
135 | ||
136 | dev_err(codec->dev, "Unsupported register address: %d\n", reg); | |
137 | return 0; | |
138 | } | |
139 | ||
140 | static int adau1701_write(struct snd_soc_codec *codec, unsigned int reg, | |
141 | unsigned int value) | |
142 | { | |
c2097409 | 143 | unsigned int i; |
631ed8a2 LPC |
144 | unsigned int size; |
145 | uint8_t buf[4]; | |
c2097409 | 146 | int ret; |
631ed8a2 LPC |
147 | |
148 | size = adau1701_register_size(codec, reg); | |
149 | if (size == 0) | |
150 | return -EINVAL; | |
151 | ||
152 | snd_soc_cache_write(codec, reg, value); | |
153 | ||
154 | buf[0] = 0x08; | |
155 | buf[1] = reg; | |
156 | ||
157 | for (i = size + 1; i >= 2; --i) { | |
158 | buf[i] = value; | |
159 | value >>= 8; | |
160 | } | |
161 | ||
162 | ret = i2c_master_send(to_i2c_client(codec->dev), buf, size + 2); | |
163 | if (ret == size + 2) | |
164 | return 0; | |
165 | else if (ret < 0) | |
166 | return ret; | |
167 | else | |
168 | return -EIO; | |
169 | } | |
170 | ||
171 | static unsigned int adau1701_read(struct snd_soc_codec *codec, unsigned int reg) | |
172 | { | |
173 | unsigned int value; | |
174 | unsigned int ret; | |
175 | ||
176 | ret = snd_soc_cache_read(codec, reg, &value); | |
177 | if (ret) | |
178 | return ret; | |
179 | ||
180 | return value; | |
181 | } | |
182 | ||
183 | static int adau1701_load_firmware(struct snd_soc_codec *codec) | |
184 | { | |
185 | return process_sigma_firmware(codec->control_data, ADAU1701_FIRMWARE); | |
186 | } | |
187 | ||
188 | static int adau1701_set_capture_pcm_format(struct snd_soc_codec *codec, | |
189 | snd_pcm_format_t format) | |
190 | { | |
191 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
192 | unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK; | |
193 | unsigned int val; | |
194 | ||
195 | switch (format) { | |
196 | case SNDRV_PCM_FORMAT_S16_LE: | |
197 | val = ADAU1701_SEROCTL_WORD_LEN_16; | |
198 | break; | |
199 | case SNDRV_PCM_FORMAT_S20_3LE: | |
200 | val = ADAU1701_SEROCTL_WORD_LEN_20; | |
201 | break; | |
202 | case SNDRV_PCM_FORMAT_S24_LE: | |
203 | val = ADAU1701_SEROCTL_WORD_LEN_24; | |
204 | break; | |
205 | default: | |
206 | return -EINVAL; | |
207 | } | |
208 | ||
209 | if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) { | |
210 | switch (format) { | |
211 | case SNDRV_PCM_FORMAT_S16_LE: | |
212 | val |= ADAU1701_SEROCTL_MSB_DEALY16; | |
213 | break; | |
214 | case SNDRV_PCM_FORMAT_S20_3LE: | |
215 | val |= ADAU1701_SEROCTL_MSB_DEALY12; | |
216 | break; | |
217 | case SNDRV_PCM_FORMAT_S24_LE: | |
218 | val |= ADAU1701_SEROCTL_MSB_DEALY8; | |
219 | break; | |
220 | } | |
221 | mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK; | |
222 | } | |
223 | ||
224 | snd_soc_update_bits(codec, ADAU1701_SEROCTL, mask, val); | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | static int adau1701_set_playback_pcm_format(struct snd_soc_codec *codec, | |
230 | snd_pcm_format_t format) | |
231 | { | |
232 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
233 | unsigned int val; | |
234 | ||
235 | if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J) | |
236 | return 0; | |
237 | ||
238 | switch (format) { | |
239 | case SNDRV_PCM_FORMAT_S16_LE: | |
240 | val = ADAU1701_SERICTL_RIGHTJ_16; | |
241 | break; | |
242 | case SNDRV_PCM_FORMAT_S20_3LE: | |
243 | val = ADAU1701_SERICTL_RIGHTJ_20; | |
244 | break; | |
245 | case SNDRV_PCM_FORMAT_S24_LE: | |
246 | val = ADAU1701_SERICTL_RIGHTJ_24; | |
247 | break; | |
248 | default: | |
249 | return -EINVAL; | |
250 | } | |
251 | ||
252 | snd_soc_update_bits(codec, ADAU1701_SERICTL, | |
253 | ADAU1701_SERICTL_MODE_MASK, val); | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
258 | static int adau1701_hw_params(struct snd_pcm_substream *substream, | |
259 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) | |
260 | { | |
e6968a17 | 261 | struct snd_soc_codec *codec = dai->codec; |
631ed8a2 LPC |
262 | snd_pcm_format_t format; |
263 | unsigned int val; | |
264 | ||
265 | switch (params_rate(params)) { | |
266 | case 192000: | |
267 | val = ADAU1701_DSPCTRL_SR_192; | |
268 | break; | |
269 | case 96000: | |
270 | val = ADAU1701_DSPCTRL_SR_96; | |
271 | break; | |
272 | case 48000: | |
273 | val = ADAU1701_DSPCTRL_SR_48; | |
274 | break; | |
275 | default: | |
276 | return -EINVAL; | |
277 | } | |
278 | ||
279 | snd_soc_update_bits(codec, ADAU1701_DSPCTRL, | |
280 | ADAU1701_DSPCTRL_SR_MASK, val); | |
281 | ||
282 | format = params_format(params); | |
283 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
284 | return adau1701_set_playback_pcm_format(codec, format); | |
285 | else | |
286 | return adau1701_set_capture_pcm_format(codec, format); | |
287 | } | |
288 | ||
289 | static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
290 | unsigned int fmt) | |
291 | { | |
292 | struct snd_soc_codec *codec = codec_dai->codec; | |
293 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
294 | unsigned int serictl = 0x00, seroctl = 0x00; | |
295 | bool invert_lrclk; | |
296 | ||
297 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
298 | case SND_SOC_DAIFMT_CBM_CFM: | |
299 | /* master, 64-bits per sample, 1 frame per sample */ | |
300 | seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16 | |
301 | | ADAU1701_SEROCTL_OLF1024; | |
302 | break; | |
303 | case SND_SOC_DAIFMT_CBS_CFS: | |
304 | break; | |
305 | default: | |
306 | return -EINVAL; | |
307 | } | |
308 | ||
309 | /* clock inversion */ | |
310 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
311 | case SND_SOC_DAIFMT_NB_NF: | |
312 | invert_lrclk = false; | |
313 | break; | |
314 | case SND_SOC_DAIFMT_NB_IF: | |
315 | invert_lrclk = true; | |
316 | break; | |
317 | case SND_SOC_DAIFMT_IB_NF: | |
318 | invert_lrclk = false; | |
319 | serictl |= ADAU1701_SERICTL_INV_BCLK; | |
320 | seroctl |= ADAU1701_SEROCTL_INV_BCLK; | |
321 | break; | |
322 | case SND_SOC_DAIFMT_IB_IF: | |
323 | invert_lrclk = true; | |
324 | serictl |= ADAU1701_SERICTL_INV_BCLK; | |
325 | seroctl |= ADAU1701_SEROCTL_INV_BCLK; | |
326 | break; | |
327 | default: | |
328 | return -EINVAL; | |
329 | } | |
330 | ||
331 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
332 | case SND_SOC_DAIFMT_I2S: | |
333 | break; | |
334 | case SND_SOC_DAIFMT_LEFT_J: | |
335 | serictl |= ADAU1701_SERICTL_LEFTJ; | |
336 | seroctl |= ADAU1701_SEROCTL_MSB_DEALY0; | |
337 | invert_lrclk = !invert_lrclk; | |
338 | break; | |
339 | case SND_SOC_DAIFMT_RIGHT_J: | |
340 | serictl |= ADAU1701_SERICTL_RIGHTJ_24; | |
341 | seroctl |= ADAU1701_SEROCTL_MSB_DEALY8; | |
342 | invert_lrclk = !invert_lrclk; | |
343 | break; | |
344 | default: | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
348 | if (invert_lrclk) { | |
349 | seroctl |= ADAU1701_SEROCTL_INV_LRCLK; | |
350 | serictl |= ADAU1701_SERICTL_INV_LRCLK; | |
351 | } | |
352 | ||
353 | adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; | |
354 | ||
355 | snd_soc_write(codec, ADAU1701_SERICTL, serictl); | |
356 | snd_soc_update_bits(codec, ADAU1701_SEROCTL, | |
357 | ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl); | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static int adau1701_set_bias_level(struct snd_soc_codec *codec, | |
363 | enum snd_soc_bias_level level) | |
364 | { | |
365 | unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD; | |
366 | ||
367 | switch (level) { | |
368 | case SND_SOC_BIAS_ON: | |
369 | break; | |
370 | case SND_SOC_BIAS_PREPARE: | |
371 | break; | |
372 | case SND_SOC_BIAS_STANDBY: | |
373 | /* Enable VREF and VREF buffer */ | |
374 | snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, 0x00); | |
375 | break; | |
376 | case SND_SOC_BIAS_OFF: | |
377 | /* Disable VREF and VREF buffer */ | |
378 | snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, mask); | |
379 | break; | |
380 | } | |
381 | ||
382 | codec->dapm.bias_level = level; | |
383 | return 0; | |
384 | } | |
385 | ||
386 | static int adau1701_digital_mute(struct snd_soc_dai *dai, int mute) | |
387 | { | |
388 | struct snd_soc_codec *codec = dai->codec; | |
389 | unsigned int mask = ADAU1701_DSPCTRL_DAM; | |
390 | unsigned int val; | |
391 | ||
392 | if (mute) | |
393 | val = 0; | |
394 | else | |
395 | val = mask; | |
396 | ||
397 | snd_soc_update_bits(codec, ADAU1701_DSPCTRL, mask, val); | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | static int adau1701_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
21326db1 | 403 | int source, unsigned int freq, int dir) |
631ed8a2 LPC |
404 | { |
405 | unsigned int val; | |
406 | ||
407 | switch (clk_id) { | |
408 | case ADAU1701_CLK_SRC_OSC: | |
409 | val = 0x0; | |
410 | break; | |
411 | case ADAU1701_CLK_SRC_MCLK: | |
412 | val = ADAU1701_OSCIPOW_OPD; | |
413 | break; | |
414 | default: | |
415 | return -EINVAL; | |
416 | } | |
417 | ||
418 | snd_soc_update_bits(codec, ADAU1701_OSCIPOW, ADAU1701_OSCIPOW_OPD, val); | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
423 | #define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \ | |
424 | SNDRV_PCM_RATE_192000) | |
425 | ||
426 | #define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
427 | SNDRV_PCM_FMTBIT_S24_LE) | |
428 | ||
890754a8 | 429 | static const struct snd_soc_dai_ops adau1701_dai_ops = { |
631ed8a2 LPC |
430 | .set_fmt = adau1701_set_dai_fmt, |
431 | .hw_params = adau1701_hw_params, | |
432 | .digital_mute = adau1701_digital_mute, | |
433 | }; | |
434 | ||
435 | static struct snd_soc_dai_driver adau1701_dai = { | |
436 | .name = "adau1701", | |
437 | .playback = { | |
438 | .stream_name = "Playback", | |
439 | .channels_min = 2, | |
440 | .channels_max = 8, | |
441 | .rates = ADAU1701_RATES, | |
442 | .formats = ADAU1701_FORMATS, | |
443 | }, | |
444 | .capture = { | |
445 | .stream_name = "Capture", | |
446 | .channels_min = 2, | |
447 | .channels_max = 8, | |
448 | .rates = ADAU1701_RATES, | |
449 | .formats = ADAU1701_FORMATS, | |
450 | }, | |
451 | .ops = &adau1701_dai_ops, | |
452 | .symmetric_rates = 1, | |
453 | }; | |
454 | ||
455 | static int adau1701_probe(struct snd_soc_codec *codec) | |
456 | { | |
457 | int ret; | |
458 | ||
23d622b1 | 459 | codec->control_data = to_i2c_client(codec->dev); |
631ed8a2 LPC |
460 | |
461 | ret = adau1701_load_firmware(codec); | |
462 | if (ret) | |
463 | dev_warn(codec->dev, "Failed to load firmware\n"); | |
464 | ||
465 | snd_soc_write(codec, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT); | |
466 | snd_soc_write(codec, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR); | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | static struct snd_soc_codec_driver adau1701_codec_drv = { | |
472 | .probe = adau1701_probe, | |
473 | .set_bias_level = adau1701_set_bias_level, | |
eb3032f8 | 474 | .idle_bias_off = true, |
631ed8a2 LPC |
475 | |
476 | .reg_cache_size = ADAU1701_NUM_REGS, | |
477 | .reg_word_size = sizeof(u16), | |
478 | ||
479 | .controls = adau1701_controls, | |
480 | .num_controls = ARRAY_SIZE(adau1701_controls), | |
481 | .dapm_widgets = adau1701_dapm_widgets, | |
482 | .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets), | |
483 | .dapm_routes = adau1701_dapm_routes, | |
484 | .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes), | |
485 | ||
486 | .write = adau1701_write, | |
487 | .read = adau1701_read, | |
488 | ||
489 | .set_sysclk = adau1701_set_sysclk, | |
490 | }; | |
491 | ||
7a79e94e BP |
492 | static int adau1701_i2c_probe(struct i2c_client *client, |
493 | const struct i2c_device_id *id) | |
631ed8a2 LPC |
494 | { |
495 | struct adau1701 *adau1701; | |
496 | int ret; | |
497 | ||
38b81c1d | 498 | adau1701 = devm_kzalloc(&client->dev, sizeof(*adau1701), GFP_KERNEL); |
631ed8a2 LPC |
499 | if (!adau1701) |
500 | return -ENOMEM; | |
501 | ||
502 | i2c_set_clientdata(client, adau1701); | |
503 | ret = snd_soc_register_codec(&client->dev, &adau1701_codec_drv, | |
504 | &adau1701_dai, 1); | |
631ed8a2 LPC |
505 | return ret; |
506 | } | |
507 | ||
7a79e94e | 508 | static int adau1701_i2c_remove(struct i2c_client *client) |
631ed8a2 LPC |
509 | { |
510 | snd_soc_unregister_codec(&client->dev); | |
631ed8a2 LPC |
511 | return 0; |
512 | } | |
513 | ||
514 | static const struct i2c_device_id adau1701_i2c_id[] = { | |
515 | { "adau1701", 0 }, | |
516 | { } | |
517 | }; | |
518 | MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id); | |
519 | ||
520 | static struct i2c_driver adau1701_i2c_driver = { | |
521 | .driver = { | |
522 | .name = "adau1701", | |
523 | .owner = THIS_MODULE, | |
524 | }, | |
525 | .probe = adau1701_i2c_probe, | |
7a79e94e | 526 | .remove = adau1701_i2c_remove, |
631ed8a2 LPC |
527 | .id_table = adau1701_i2c_id, |
528 | }; | |
529 | ||
beb22de0 | 530 | module_i2c_driver(adau1701_i2c_driver); |
631ed8a2 LPC |
531 | |
532 | MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver"); | |
533 | MODULE_AUTHOR("Cliff Cai <cliff.cai@analog.com>"); | |
534 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
535 | MODULE_LICENSE("GPL"); |