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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 | 15 | #include <linux/slab.h> |
04561eac DM |
16 | #include <linux/of.h> |
17 | #include <linux/of_gpio.h> | |
18 | #include <linux/of_device.h> | |
631ed8a2 LPC |
19 | #include <sound/core.h> |
20 | #include <sound/pcm.h> | |
21 | #include <sound/pcm_params.h> | |
22 | #include <sound/soc.h> | |
23 | ||
40216ce7 | 24 | #include "sigmadsp.h" |
631ed8a2 LPC |
25 | #include "adau1701.h" |
26 | ||
27 | #define ADAU1701_DSPCTRL 0x1c | |
28 | #define ADAU1701_SEROCTL 0x1e | |
29 | #define ADAU1701_SERICTL 0x1f | |
30 | ||
31 | #define ADAU1701_AUXNPOW 0x22 | |
32 | ||
33 | #define ADAU1701_OSCIPOW 0x26 | |
34 | #define ADAU1701_DACSET 0x27 | |
35 | ||
36 | #define ADAU1701_NUM_REGS 0x28 | |
37 | ||
38 | #define ADAU1701_DSPCTRL_CR (1 << 2) | |
39 | #define ADAU1701_DSPCTRL_DAM (1 << 3) | |
40 | #define ADAU1701_DSPCTRL_ADM (1 << 4) | |
41 | #define ADAU1701_DSPCTRL_SR_48 0x00 | |
42 | #define ADAU1701_DSPCTRL_SR_96 0x01 | |
43 | #define ADAU1701_DSPCTRL_SR_192 0x02 | |
44 | #define ADAU1701_DSPCTRL_SR_MASK 0x03 | |
45 | ||
46 | #define ADAU1701_SEROCTL_INV_LRCLK 0x2000 | |
47 | #define ADAU1701_SEROCTL_INV_BCLK 0x1000 | |
48 | #define ADAU1701_SEROCTL_MASTER 0x0800 | |
49 | ||
50 | #define ADAU1701_SEROCTL_OBF16 0x0000 | |
51 | #define ADAU1701_SEROCTL_OBF8 0x0200 | |
52 | #define ADAU1701_SEROCTL_OBF4 0x0400 | |
53 | #define ADAU1701_SEROCTL_OBF2 0x0600 | |
54 | #define ADAU1701_SEROCTL_OBF_MASK 0x0600 | |
55 | ||
56 | #define ADAU1701_SEROCTL_OLF1024 0x0000 | |
57 | #define ADAU1701_SEROCTL_OLF512 0x0080 | |
58 | #define ADAU1701_SEROCTL_OLF256 0x0100 | |
59 | #define ADAU1701_SEROCTL_OLF_MASK 0x0180 | |
60 | ||
61 | #define ADAU1701_SEROCTL_MSB_DEALY1 0x0000 | |
62 | #define ADAU1701_SEROCTL_MSB_DEALY0 0x0004 | |
63 | #define ADAU1701_SEROCTL_MSB_DEALY8 0x0008 | |
64 | #define ADAU1701_SEROCTL_MSB_DEALY12 0x000c | |
65 | #define ADAU1701_SEROCTL_MSB_DEALY16 0x0010 | |
66 | #define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c | |
67 | ||
68 | #define ADAU1701_SEROCTL_WORD_LEN_24 0x0000 | |
69 | #define ADAU1701_SEROCTL_WORD_LEN_20 0x0001 | |
70 | #define ADAU1701_SEROCTL_WORD_LEN_16 0x0010 | |
71 | #define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003 | |
72 | ||
73 | #define ADAU1701_AUXNPOW_VBPD 0x40 | |
74 | #define ADAU1701_AUXNPOW_VRPD 0x20 | |
75 | ||
76 | #define ADAU1701_SERICTL_I2S 0 | |
77 | #define ADAU1701_SERICTL_LEFTJ 1 | |
78 | #define ADAU1701_SERICTL_TDM 2 | |
79 | #define ADAU1701_SERICTL_RIGHTJ_24 3 | |
80 | #define ADAU1701_SERICTL_RIGHTJ_20 4 | |
81 | #define ADAU1701_SERICTL_RIGHTJ_18 5 | |
82 | #define ADAU1701_SERICTL_RIGHTJ_16 6 | |
83 | #define ADAU1701_SERICTL_MODE_MASK 7 | |
84 | #define ADAU1701_SERICTL_INV_BCLK BIT(3) | |
85 | #define ADAU1701_SERICTL_INV_LRCLK BIT(4) | |
86 | ||
87 | #define ADAU1701_OSCIPOW_OPD 0x04 | |
88 | #define ADAU1701_DACSET_DACINIT 1 | |
89 | ||
90 | #define ADAU1701_FIRMWARE "adau1701.bin" | |
91 | ||
92 | struct adau1701 { | |
f724ba3b | 93 | int gpio_nreset; |
631ed8a2 LPC |
94 | unsigned int dai_fmt; |
95 | }; | |
96 | ||
97 | static const struct snd_kcontrol_new adau1701_controls[] = { | |
98 | SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0), | |
99 | }; | |
100 | ||
101 | static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = { | |
102 | SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1), | |
103 | SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1), | |
104 | SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1), | |
105 | SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1), | |
106 | SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1), | |
107 | ||
108 | SND_SOC_DAPM_OUTPUT("OUT0"), | |
109 | SND_SOC_DAPM_OUTPUT("OUT1"), | |
110 | SND_SOC_DAPM_OUTPUT("OUT2"), | |
111 | SND_SOC_DAPM_OUTPUT("OUT3"), | |
112 | SND_SOC_DAPM_INPUT("IN0"), | |
113 | SND_SOC_DAPM_INPUT("IN1"), | |
114 | }; | |
115 | ||
116 | static const struct snd_soc_dapm_route adau1701_dapm_routes[] = { | |
117 | { "OUT0", NULL, "DAC0" }, | |
118 | { "OUT1", NULL, "DAC1" }, | |
119 | { "OUT2", NULL, "DAC2" }, | |
120 | { "OUT3", NULL, "DAC3" }, | |
121 | ||
122 | { "ADC", NULL, "IN0" }, | |
123 | { "ADC", NULL, "IN1" }, | |
124 | }; | |
125 | ||
126 | static unsigned int adau1701_register_size(struct snd_soc_codec *codec, | |
127 | unsigned int reg) | |
128 | { | |
129 | switch (reg) { | |
130 | case ADAU1701_DSPCTRL: | |
131 | case ADAU1701_SEROCTL: | |
132 | case ADAU1701_AUXNPOW: | |
133 | case ADAU1701_OSCIPOW: | |
134 | case ADAU1701_DACSET: | |
135 | return 2; | |
136 | case ADAU1701_SERICTL: | |
137 | return 1; | |
138 | } | |
139 | ||
140 | dev_err(codec->dev, "Unsupported register address: %d\n", reg); | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static int adau1701_write(struct snd_soc_codec *codec, unsigned int reg, | |
145 | unsigned int value) | |
146 | { | |
c2097409 | 147 | unsigned int i; |
631ed8a2 LPC |
148 | unsigned int size; |
149 | uint8_t buf[4]; | |
c2097409 | 150 | int ret; |
631ed8a2 LPC |
151 | |
152 | size = adau1701_register_size(codec, reg); | |
153 | if (size == 0) | |
154 | return -EINVAL; | |
155 | ||
156 | snd_soc_cache_write(codec, reg, value); | |
157 | ||
158 | buf[0] = 0x08; | |
159 | buf[1] = reg; | |
160 | ||
161 | for (i = size + 1; i >= 2; --i) { | |
162 | buf[i] = value; | |
163 | value >>= 8; | |
164 | } | |
165 | ||
166 | ret = i2c_master_send(to_i2c_client(codec->dev), buf, size + 2); | |
167 | if (ret == size + 2) | |
168 | return 0; | |
169 | else if (ret < 0) | |
170 | return ret; | |
171 | else | |
172 | return -EIO; | |
173 | } | |
174 | ||
175 | static unsigned int adau1701_read(struct snd_soc_codec *codec, unsigned int reg) | |
176 | { | |
177 | unsigned int value; | |
178 | unsigned int ret; | |
179 | ||
180 | ret = snd_soc_cache_read(codec, reg, &value); | |
181 | if (ret) | |
182 | return ret; | |
183 | ||
184 | return value; | |
185 | } | |
186 | ||
de9fc724 | 187 | static int adau1701_reset(struct snd_soc_codec *codec) |
631ed8a2 | 188 | { |
f724ba3b | 189 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); |
f724ba3b | 190 | struct i2c_client *client = to_i2c_client(codec->dev); |
de9fc724 | 191 | int ret; |
f724ba3b | 192 | |
de9fc724 DM |
193 | if (gpio_is_valid(adau1701->gpio_nreset)) { |
194 | gpio_set_value(adau1701->gpio_nreset, 0); | |
195 | /* minimum reset time is 20ns */ | |
196 | udelay(1); | |
197 | gpio_set_value(adau1701->gpio_nreset, 1); | |
198 | /* power-up time may be as long as 85ms */ | |
199 | mdelay(85); | |
200 | } | |
f724ba3b DM |
201 | |
202 | ret = process_sigma_firmware(client, ADAU1701_FIRMWARE); | |
203 | if (ret) { | |
204 | dev_warn(codec->dev, "Failed to load firmware\n"); | |
205 | return ret; | |
206 | } | |
207 | ||
208 | snd_soc_write(codec, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT); | |
de9fc724 | 209 | snd_soc_write(codec, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR); |
f724ba3b DM |
210 | |
211 | return 0; | |
631ed8a2 LPC |
212 | } |
213 | ||
214 | static int adau1701_set_capture_pcm_format(struct snd_soc_codec *codec, | |
215 | snd_pcm_format_t format) | |
216 | { | |
217 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
218 | unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK; | |
219 | unsigned int val; | |
220 | ||
221 | switch (format) { | |
222 | case SNDRV_PCM_FORMAT_S16_LE: | |
223 | val = ADAU1701_SEROCTL_WORD_LEN_16; | |
224 | break; | |
225 | case SNDRV_PCM_FORMAT_S20_3LE: | |
226 | val = ADAU1701_SEROCTL_WORD_LEN_20; | |
227 | break; | |
228 | case SNDRV_PCM_FORMAT_S24_LE: | |
229 | val = ADAU1701_SEROCTL_WORD_LEN_24; | |
230 | break; | |
231 | default: | |
232 | return -EINVAL; | |
233 | } | |
234 | ||
235 | if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) { | |
236 | switch (format) { | |
237 | case SNDRV_PCM_FORMAT_S16_LE: | |
238 | val |= ADAU1701_SEROCTL_MSB_DEALY16; | |
239 | break; | |
240 | case SNDRV_PCM_FORMAT_S20_3LE: | |
241 | val |= ADAU1701_SEROCTL_MSB_DEALY12; | |
242 | break; | |
243 | case SNDRV_PCM_FORMAT_S24_LE: | |
244 | val |= ADAU1701_SEROCTL_MSB_DEALY8; | |
245 | break; | |
246 | } | |
247 | mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK; | |
248 | } | |
249 | ||
250 | snd_soc_update_bits(codec, ADAU1701_SEROCTL, mask, val); | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | static int adau1701_set_playback_pcm_format(struct snd_soc_codec *codec, | |
256 | snd_pcm_format_t format) | |
257 | { | |
258 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
259 | unsigned int val; | |
260 | ||
261 | if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J) | |
262 | return 0; | |
263 | ||
264 | switch (format) { | |
265 | case SNDRV_PCM_FORMAT_S16_LE: | |
266 | val = ADAU1701_SERICTL_RIGHTJ_16; | |
267 | break; | |
268 | case SNDRV_PCM_FORMAT_S20_3LE: | |
269 | val = ADAU1701_SERICTL_RIGHTJ_20; | |
270 | break; | |
271 | case SNDRV_PCM_FORMAT_S24_LE: | |
272 | val = ADAU1701_SERICTL_RIGHTJ_24; | |
273 | break; | |
274 | default: | |
275 | return -EINVAL; | |
276 | } | |
277 | ||
278 | snd_soc_update_bits(codec, ADAU1701_SERICTL, | |
279 | ADAU1701_SERICTL_MODE_MASK, val); | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
284 | static int adau1701_hw_params(struct snd_pcm_substream *substream, | |
285 | struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) | |
286 | { | |
e6968a17 | 287 | struct snd_soc_codec *codec = dai->codec; |
631ed8a2 LPC |
288 | snd_pcm_format_t format; |
289 | unsigned int val; | |
290 | ||
291 | switch (params_rate(params)) { | |
292 | case 192000: | |
293 | val = ADAU1701_DSPCTRL_SR_192; | |
294 | break; | |
295 | case 96000: | |
296 | val = ADAU1701_DSPCTRL_SR_96; | |
297 | break; | |
298 | case 48000: | |
299 | val = ADAU1701_DSPCTRL_SR_48; | |
300 | break; | |
301 | default: | |
302 | return -EINVAL; | |
303 | } | |
304 | ||
305 | snd_soc_update_bits(codec, ADAU1701_DSPCTRL, | |
306 | ADAU1701_DSPCTRL_SR_MASK, val); | |
307 | ||
308 | format = params_format(params); | |
309 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
310 | return adau1701_set_playback_pcm_format(codec, format); | |
311 | else | |
312 | return adau1701_set_capture_pcm_format(codec, format); | |
313 | } | |
314 | ||
315 | static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
316 | unsigned int fmt) | |
317 | { | |
318 | struct snd_soc_codec *codec = codec_dai->codec; | |
319 | struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec); | |
320 | unsigned int serictl = 0x00, seroctl = 0x00; | |
321 | bool invert_lrclk; | |
322 | ||
323 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
324 | case SND_SOC_DAIFMT_CBM_CFM: | |
325 | /* master, 64-bits per sample, 1 frame per sample */ | |
326 | seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16 | |
327 | | ADAU1701_SEROCTL_OLF1024; | |
328 | break; | |
329 | case SND_SOC_DAIFMT_CBS_CFS: | |
330 | break; | |
331 | default: | |
332 | return -EINVAL; | |
333 | } | |
334 | ||
335 | /* clock inversion */ | |
336 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
337 | case SND_SOC_DAIFMT_NB_NF: | |
338 | invert_lrclk = false; | |
339 | break; | |
340 | case SND_SOC_DAIFMT_NB_IF: | |
341 | invert_lrclk = true; | |
342 | break; | |
343 | case SND_SOC_DAIFMT_IB_NF: | |
344 | invert_lrclk = false; | |
345 | serictl |= ADAU1701_SERICTL_INV_BCLK; | |
346 | seroctl |= ADAU1701_SEROCTL_INV_BCLK; | |
347 | break; | |
348 | case SND_SOC_DAIFMT_IB_IF: | |
349 | invert_lrclk = true; | |
350 | serictl |= ADAU1701_SERICTL_INV_BCLK; | |
351 | seroctl |= ADAU1701_SEROCTL_INV_BCLK; | |
352 | break; | |
353 | default: | |
354 | return -EINVAL; | |
355 | } | |
356 | ||
357 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
358 | case SND_SOC_DAIFMT_I2S: | |
359 | break; | |
360 | case SND_SOC_DAIFMT_LEFT_J: | |
361 | serictl |= ADAU1701_SERICTL_LEFTJ; | |
362 | seroctl |= ADAU1701_SEROCTL_MSB_DEALY0; | |
363 | invert_lrclk = !invert_lrclk; | |
364 | break; | |
365 | case SND_SOC_DAIFMT_RIGHT_J: | |
366 | serictl |= ADAU1701_SERICTL_RIGHTJ_24; | |
367 | seroctl |= ADAU1701_SEROCTL_MSB_DEALY8; | |
368 | invert_lrclk = !invert_lrclk; | |
369 | break; | |
370 | default: | |
371 | return -EINVAL; | |
372 | } | |
373 | ||
374 | if (invert_lrclk) { | |
375 | seroctl |= ADAU1701_SEROCTL_INV_LRCLK; | |
376 | serictl |= ADAU1701_SERICTL_INV_LRCLK; | |
377 | } | |
378 | ||
379 | adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; | |
380 | ||
381 | snd_soc_write(codec, ADAU1701_SERICTL, serictl); | |
382 | snd_soc_update_bits(codec, ADAU1701_SEROCTL, | |
383 | ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl); | |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
388 | static int adau1701_set_bias_level(struct snd_soc_codec *codec, | |
389 | enum snd_soc_bias_level level) | |
390 | { | |
391 | unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD; | |
392 | ||
393 | switch (level) { | |
394 | case SND_SOC_BIAS_ON: | |
395 | break; | |
396 | case SND_SOC_BIAS_PREPARE: | |
397 | break; | |
398 | case SND_SOC_BIAS_STANDBY: | |
399 | /* Enable VREF and VREF buffer */ | |
400 | snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, 0x00); | |
401 | break; | |
402 | case SND_SOC_BIAS_OFF: | |
403 | /* Disable VREF and VREF buffer */ | |
404 | snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, mask); | |
405 | break; | |
406 | } | |
407 | ||
408 | codec->dapm.bias_level = level; | |
409 | return 0; | |
410 | } | |
411 | ||
412 | static int adau1701_digital_mute(struct snd_soc_dai *dai, int mute) | |
413 | { | |
414 | struct snd_soc_codec *codec = dai->codec; | |
415 | unsigned int mask = ADAU1701_DSPCTRL_DAM; | |
416 | unsigned int val; | |
417 | ||
418 | if (mute) | |
419 | val = 0; | |
420 | else | |
421 | val = mask; | |
422 | ||
423 | snd_soc_update_bits(codec, ADAU1701_DSPCTRL, mask, val); | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
428 | static int adau1701_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
21326db1 | 429 | int source, unsigned int freq, int dir) |
631ed8a2 LPC |
430 | { |
431 | unsigned int val; | |
432 | ||
433 | switch (clk_id) { | |
434 | case ADAU1701_CLK_SRC_OSC: | |
435 | val = 0x0; | |
436 | break; | |
437 | case ADAU1701_CLK_SRC_MCLK: | |
438 | val = ADAU1701_OSCIPOW_OPD; | |
439 | break; | |
440 | default: | |
441 | return -EINVAL; | |
442 | } | |
443 | ||
444 | snd_soc_update_bits(codec, ADAU1701_OSCIPOW, ADAU1701_OSCIPOW_OPD, val); | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | #define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \ | |
450 | SNDRV_PCM_RATE_192000) | |
451 | ||
452 | #define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
453 | SNDRV_PCM_FMTBIT_S24_LE) | |
454 | ||
890754a8 | 455 | static const struct snd_soc_dai_ops adau1701_dai_ops = { |
631ed8a2 LPC |
456 | .set_fmt = adau1701_set_dai_fmt, |
457 | .hw_params = adau1701_hw_params, | |
458 | .digital_mute = adau1701_digital_mute, | |
459 | }; | |
460 | ||
461 | static struct snd_soc_dai_driver adau1701_dai = { | |
462 | .name = "adau1701", | |
463 | .playback = { | |
464 | .stream_name = "Playback", | |
465 | .channels_min = 2, | |
466 | .channels_max = 8, | |
467 | .rates = ADAU1701_RATES, | |
468 | .formats = ADAU1701_FORMATS, | |
469 | }, | |
470 | .capture = { | |
471 | .stream_name = "Capture", | |
472 | .channels_min = 2, | |
473 | .channels_max = 8, | |
474 | .rates = ADAU1701_RATES, | |
475 | .formats = ADAU1701_FORMATS, | |
476 | }, | |
477 | .ops = &adau1701_dai_ops, | |
478 | .symmetric_rates = 1, | |
479 | }; | |
480 | ||
04561eac DM |
481 | #ifdef CONFIG_OF |
482 | static const struct of_device_id adau1701_dt_ids[] = { | |
483 | { .compatible = "adi,adau1701", }, | |
484 | { } | |
485 | }; | |
486 | MODULE_DEVICE_TABLE(of, adau1701_dt_ids); | |
487 | #endif | |
488 | ||
631ed8a2 LPC |
489 | static int adau1701_probe(struct snd_soc_codec *codec) |
490 | { | |
491 | int ret; | |
492 | ||
f724ba3b | 493 | codec->control_data = to_i2c_client(codec->dev); |
631ed8a2 | 494 | |
de9fc724 | 495 | ret = adau1701_reset(codec); |
631ed8a2 | 496 | if (ret) |
f724ba3b | 497 | return ret; |
631ed8a2 | 498 | |
631ed8a2 LPC |
499 | return 0; |
500 | } | |
501 | ||
502 | static struct snd_soc_codec_driver adau1701_codec_drv = { | |
503 | .probe = adau1701_probe, | |
504 | .set_bias_level = adau1701_set_bias_level, | |
eb3032f8 | 505 | .idle_bias_off = true, |
631ed8a2 LPC |
506 | |
507 | .reg_cache_size = ADAU1701_NUM_REGS, | |
508 | .reg_word_size = sizeof(u16), | |
509 | ||
510 | .controls = adau1701_controls, | |
511 | .num_controls = ARRAY_SIZE(adau1701_controls), | |
512 | .dapm_widgets = adau1701_dapm_widgets, | |
513 | .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets), | |
514 | .dapm_routes = adau1701_dapm_routes, | |
515 | .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes), | |
516 | ||
517 | .write = adau1701_write, | |
518 | .read = adau1701_read, | |
519 | ||
520 | .set_sysclk = adau1701_set_sysclk, | |
521 | }; | |
522 | ||
7a79e94e BP |
523 | static int adau1701_i2c_probe(struct i2c_client *client, |
524 | const struct i2c_device_id *id) | |
631ed8a2 LPC |
525 | { |
526 | struct adau1701 *adau1701; | |
04561eac DM |
527 | struct device *dev = &client->dev; |
528 | int gpio_nreset = -EINVAL; | |
631ed8a2 LPC |
529 | int ret; |
530 | ||
04561eac | 531 | adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL); |
631ed8a2 LPC |
532 | if (!adau1701) |
533 | return -ENOMEM; | |
534 | ||
04561eac DM |
535 | if (dev->of_node) { |
536 | gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0); | |
537 | if (gpio_nreset < 0 && gpio_nreset != -ENOENT) | |
538 | return gpio_nreset; | |
539 | } | |
540 | ||
541 | if (gpio_is_valid(gpio_nreset)) { | |
542 | ret = devm_gpio_request_one(dev, gpio_nreset, GPIOF_OUT_INIT_LOW, | |
543 | "ADAU1701 Reset"); | |
544 | if (ret < 0) | |
545 | return ret; | |
04561eac DM |
546 | } |
547 | ||
f724ba3b DM |
548 | adau1701->gpio_nreset = gpio_nreset; |
549 | ||
631ed8a2 LPC |
550 | i2c_set_clientdata(client, adau1701); |
551 | ret = snd_soc_register_codec(&client->dev, &adau1701_codec_drv, | |
552 | &adau1701_dai, 1); | |
631ed8a2 LPC |
553 | return ret; |
554 | } | |
555 | ||
7a79e94e | 556 | static int adau1701_i2c_remove(struct i2c_client *client) |
631ed8a2 LPC |
557 | { |
558 | snd_soc_unregister_codec(&client->dev); | |
631ed8a2 LPC |
559 | return 0; |
560 | } | |
561 | ||
562 | static const struct i2c_device_id adau1701_i2c_id[] = { | |
563 | { "adau1701", 0 }, | |
564 | { } | |
565 | }; | |
566 | MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id); | |
567 | ||
568 | static struct i2c_driver adau1701_i2c_driver = { | |
569 | .driver = { | |
570 | .name = "adau1701", | |
571 | .owner = THIS_MODULE, | |
04561eac | 572 | .of_match_table = of_match_ptr(adau1701_dt_ids), |
631ed8a2 LPC |
573 | }, |
574 | .probe = adau1701_i2c_probe, | |
7a79e94e | 575 | .remove = adau1701_i2c_remove, |
631ed8a2 LPC |
576 | .id_table = adau1701_i2c_id, |
577 | }; | |
578 | ||
beb22de0 | 579 | module_i2c_driver(adau1701_i2c_driver); |
631ed8a2 LPC |
580 | |
581 | MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver"); | |
582 | MODULE_AUTHOR("Cliff Cai <cliff.cai@analog.com>"); | |
583 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
584 | MODULE_LICENSE("GPL"); |