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4fa89346 DM |
1 | /* |
2 | * TAS5086 ASoC codec driver | |
3 | * | |
4 | * Copyright (c) 2013 Daniel Mack <zonque@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * TODO: | |
17 | * - implement DAPM and input muxing | |
18 | * - implement modulation limit | |
19 | * - implement non-default PWM start | |
20 | * | |
21 | * Note that this chip has a very unusual register layout, specifically | |
22 | * because the registers are of unequal size, and multi-byte registers | |
23 | * require bulk writes to take effect. Regmap does not support that kind | |
24 | * of devices. | |
25 | * | |
26 | * Currently, the driver does not touch any of the registers >= 0x20, so | |
27 | * it doesn't matter because the entire map can be accessed as 8-bit | |
28 | * array. In case more features will be added in the future | |
29 | * that require access to higher registers, the entire regmap H/W I/O | |
30 | * routines have to be open-coded. | |
31 | */ | |
32 | ||
33 | #include <linux/module.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/gpio.h> | |
37 | #include <linux/i2c.h> | |
38 | #include <linux/regmap.h> | |
39 | #include <linux/spi/spi.h> | |
285d00c1 | 40 | #include <linux/of.h> |
4fa89346 DM |
41 | #include <linux/of_device.h> |
42 | #include <linux/of_gpio.h> | |
43 | #include <sound/pcm.h> | |
44 | #include <sound/pcm_params.h> | |
45 | #include <sound/soc.h> | |
46 | #include <sound/tlv.h> | |
47 | #include <sound/tas5086.h> | |
48 | ||
49 | #define TAS5086_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ | |
50 | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
51 | SNDRV_PCM_FMTBIT_S24_3LE) | |
52 | ||
53 | #define TAS5086_PCM_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ | |
54 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \ | |
55 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | \ | |
56 | SNDRV_PCM_RATE_192000) | |
57 | ||
58 | /* | |
59 | * TAS5086 registers | |
60 | */ | |
61 | #define TAS5086_CLOCK_CONTROL 0x00 /* Clock control register */ | |
62 | #define TAS5086_CLOCK_RATE(val) (val << 5) | |
63 | #define TAS5086_CLOCK_RATE_MASK (0x7 << 5) | |
64 | #define TAS5086_CLOCK_RATIO(val) (val << 2) | |
65 | #define TAS5086_CLOCK_RATIO_MASK (0x7 << 2) | |
66 | #define TAS5086_CLOCK_SCLK_RATIO_48 (1 << 1) | |
67 | #define TAS5086_CLOCK_VALID (1 << 0) | |
68 | ||
69 | #define TAS5086_DEEMPH_MASK 0x03 | |
70 | #define TAS5086_SOFT_MUTE_ALL 0x3f | |
71 | ||
72 | #define TAS5086_DEV_ID 0x01 /* Device ID register */ | |
73 | #define TAS5086_ERROR_STATUS 0x02 /* Error status register */ | |
74 | #define TAS5086_SYS_CONTROL_1 0x03 /* System control register 1 */ | |
75 | #define TAS5086_SERIAL_DATA_IF 0x04 /* Serial data interface register */ | |
76 | #define TAS5086_SYS_CONTROL_2 0x05 /* System control register 2 */ | |
77 | #define TAS5086_SOFT_MUTE 0x06 /* Soft mute register */ | |
78 | #define TAS5086_MASTER_VOL 0x07 /* Master volume */ | |
79 | #define TAS5086_CHANNEL_VOL(X) (0x08 + (X)) /* Channel 1-6 volume */ | |
80 | #define TAS5086_VOLUME_CONTROL 0x09 /* Volume control register */ | |
81 | #define TAS5086_MOD_LIMIT 0x10 /* Modulation limit register */ | |
82 | #define TAS5086_PWM_START 0x18 /* PWM start register */ | |
83 | #define TAS5086_SURROUND 0x19 /* Surround register */ | |
84 | #define TAS5086_SPLIT_CAP_CHARGE 0x1a /* Split cap charge period register */ | |
85 | #define TAS5086_OSC_TRIM 0x1b /* Oscillator trim register */ | |
86 | #define TAS5086_BKNDERR 0x1c | |
8892d479 DM |
87 | #define TAS5086_INPUT_MUX 0x20 |
88 | #define TAS5086_PWM_OUTPUT_MUX 0x25 | |
89 | ||
90 | #define TAS5086_MAX_REGISTER TAS5086_PWM_OUTPUT_MUX | |
4fa89346 | 91 | |
79b23b56 DM |
92 | #define TAS5086_PWM_START_MIDZ_FOR_START_1 (1 << 7) |
93 | #define TAS5086_PWM_START_MIDZ_FOR_START_2 (1 << 6) | |
94 | #define TAS5086_PWM_START_CHANNEL_MASK (0x3f) | |
95 | ||
4fa89346 DM |
96 | /* |
97 | * Default TAS5086 power-up configuration | |
98 | */ | |
99 | static const struct reg_default tas5086_reg_defaults[] = { | |
100 | { 0x00, 0x6c }, | |
101 | { 0x01, 0x03 }, | |
102 | { 0x02, 0x00 }, | |
103 | { 0x03, 0xa0 }, | |
104 | { 0x04, 0x05 }, | |
105 | { 0x05, 0x60 }, | |
106 | { 0x06, 0x00 }, | |
107 | { 0x07, 0xff }, | |
108 | { 0x08, 0x30 }, | |
109 | { 0x09, 0x30 }, | |
110 | { 0x0a, 0x30 }, | |
111 | { 0x0b, 0x30 }, | |
112 | { 0x0c, 0x30 }, | |
113 | { 0x0d, 0x30 }, | |
114 | { 0x0e, 0xb1 }, | |
115 | { 0x0f, 0x00 }, | |
116 | { 0x10, 0x02 }, | |
117 | { 0x11, 0x00 }, | |
118 | { 0x12, 0x00 }, | |
119 | { 0x13, 0x00 }, | |
120 | { 0x14, 0x00 }, | |
121 | { 0x15, 0x00 }, | |
122 | { 0x16, 0x00 }, | |
123 | { 0x17, 0x00 }, | |
124 | { 0x18, 0x3f }, | |
125 | { 0x19, 0x00 }, | |
126 | { 0x1a, 0x18 }, | |
127 | { 0x1b, 0x82 }, | |
128 | { 0x1c, 0x05 }, | |
129 | }; | |
130 | ||
6b36d370 DM |
131 | static int tas5086_register_size(struct device *dev, unsigned int reg) |
132 | { | |
133 | switch (reg) { | |
9f24dc87 | 134 | case TAS5086_CLOCK_CONTROL ... TAS5086_BKNDERR: |
6b36d370 | 135 | return 1; |
8892d479 DM |
136 | case TAS5086_INPUT_MUX: |
137 | case TAS5086_PWM_OUTPUT_MUX: | |
138 | return 4; | |
6b36d370 DM |
139 | } |
140 | ||
141 | dev_err(dev, "Unsupported register address: %d\n", reg); | |
142 | return 0; | |
143 | } | |
144 | ||
4fa89346 DM |
145 | static bool tas5086_accessible_reg(struct device *dev, unsigned int reg) |
146 | { | |
8892d479 DM |
147 | switch (reg) { |
148 | case 0x0f: | |
149 | case 0x11 ... 0x17: | |
150 | case 0x1d ... 0x1f: | |
151 | return false; | |
152 | default: | |
153 | return true; | |
154 | } | |
4fa89346 DM |
155 | } |
156 | ||
157 | static bool tas5086_volatile_reg(struct device *dev, unsigned int reg) | |
158 | { | |
159 | switch (reg) { | |
160 | case TAS5086_DEV_ID: | |
161 | case TAS5086_ERROR_STATUS: | |
162 | return true; | |
163 | } | |
164 | ||
165 | return false; | |
166 | } | |
167 | ||
168 | static bool tas5086_writeable_reg(struct device *dev, unsigned int reg) | |
169 | { | |
170 | return tas5086_accessible_reg(dev, reg) && (reg != TAS5086_DEV_ID); | |
171 | } | |
172 | ||
6b36d370 DM |
173 | static int tas5086_reg_write(void *context, unsigned int reg, |
174 | unsigned int value) | |
175 | { | |
176 | struct i2c_client *client = context; | |
177 | unsigned int i, size; | |
178 | uint8_t buf[5]; | |
179 | int ret; | |
180 | ||
181 | size = tas5086_register_size(&client->dev, reg); | |
182 | if (size == 0) | |
183 | return -EINVAL; | |
184 | ||
185 | buf[0] = reg; | |
186 | ||
187 | for (i = size; i >= 1; --i) { | |
188 | buf[i] = value; | |
189 | value >>= 8; | |
190 | } | |
191 | ||
192 | ret = i2c_master_send(client, buf, size + 1); | |
193 | if (ret == size + 1) | |
194 | return 0; | |
195 | else if (ret < 0) | |
196 | return ret; | |
197 | else | |
198 | return -EIO; | |
199 | } | |
200 | ||
201 | static int tas5086_reg_read(void *context, unsigned int reg, | |
202 | unsigned int *value) | |
203 | { | |
204 | struct i2c_client *client = context; | |
205 | uint8_t send_buf, recv_buf[4]; | |
206 | struct i2c_msg msgs[2]; | |
207 | unsigned int size; | |
208 | unsigned int i; | |
209 | int ret; | |
210 | ||
211 | size = tas5086_register_size(&client->dev, reg); | |
212 | if (size == 0) | |
213 | return -EINVAL; | |
214 | ||
215 | send_buf = reg; | |
216 | ||
217 | msgs[0].addr = client->addr; | |
218 | msgs[0].len = sizeof(send_buf); | |
219 | msgs[0].buf = &send_buf; | |
220 | msgs[0].flags = 0; | |
221 | ||
222 | msgs[1].addr = client->addr; | |
223 | msgs[1].len = size; | |
224 | msgs[1].buf = recv_buf; | |
225 | msgs[1].flags = I2C_M_RD; | |
226 | ||
227 | ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); | |
228 | if (ret < 0) | |
229 | return ret; | |
230 | else if (ret != ARRAY_SIZE(msgs)) | |
231 | return -EIO; | |
232 | ||
233 | *value = 0; | |
234 | ||
235 | for (i = 0; i < size; i++) { | |
236 | *value <<= 8; | |
237 | *value |= recv_buf[i]; | |
238 | } | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
4fa89346 DM |
243 | struct tas5086_private { |
244 | struct regmap *regmap; | |
245 | unsigned int mclk, sclk; | |
246 | unsigned int format; | |
247 | bool deemph; | |
648c5382 DM |
248 | unsigned int charge_period; |
249 | unsigned int pwm_start_mid_z; | |
4fa89346 DM |
250 | /* Current sample rate for de-emphasis control */ |
251 | int rate; | |
252 | /* GPIO driving Reset pin, if any */ | |
253 | int gpio_nreset; | |
254 | }; | |
255 | ||
256 | static int tas5086_deemph[] = { 0, 32000, 44100, 48000 }; | |
257 | ||
258 | static int tas5086_set_deemph(struct snd_soc_codec *codec) | |
259 | { | |
260 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
261 | int i, val = 0; | |
262 | ||
263 | if (priv->deemph) | |
264 | for (i = 0; i < ARRAY_SIZE(tas5086_deemph); i++) | |
265 | if (tas5086_deemph[i] == priv->rate) | |
266 | val = i; | |
267 | ||
268 | return regmap_update_bits(priv->regmap, TAS5086_SYS_CONTROL_1, | |
269 | TAS5086_DEEMPH_MASK, val); | |
270 | } | |
271 | ||
272 | static int tas5086_get_deemph(struct snd_kcontrol *kcontrol, | |
273 | struct snd_ctl_elem_value *ucontrol) | |
274 | { | |
275 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
276 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
277 | ||
278 | ucontrol->value.enumerated.item[0] = priv->deemph; | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
283 | static int tas5086_put_deemph(struct snd_kcontrol *kcontrol, | |
284 | struct snd_ctl_elem_value *ucontrol) | |
285 | { | |
286 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
287 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
288 | ||
289 | priv->deemph = ucontrol->value.enumerated.item[0]; | |
290 | ||
291 | return tas5086_set_deemph(codec); | |
292 | } | |
293 | ||
294 | ||
295 | static int tas5086_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
296 | int clk_id, unsigned int freq, int dir) | |
297 | { | |
298 | struct snd_soc_codec *codec = codec_dai->codec; | |
299 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
300 | ||
301 | switch (clk_id) { | |
302 | case TAS5086_CLK_IDX_MCLK: | |
303 | priv->mclk = freq; | |
304 | break; | |
305 | case TAS5086_CLK_IDX_SCLK: | |
306 | priv->sclk = freq; | |
307 | break; | |
308 | } | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
313 | static int tas5086_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
314 | unsigned int format) | |
315 | { | |
316 | struct snd_soc_codec *codec = codec_dai->codec; | |
317 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
318 | ||
319 | /* The TAS5086 can only be slave to all clocks */ | |
320 | if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) { | |
321 | dev_err(codec->dev, "Invalid clocking mode\n"); | |
322 | return -EINVAL; | |
323 | } | |
324 | ||
325 | /* we need to refer to the data format from hw_params() */ | |
326 | priv->format = format; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | static const int tas5086_sample_rates[] = { | |
332 | 32000, 38000, 44100, 48000, 88200, 96000, 176400, 192000 | |
333 | }; | |
334 | ||
335 | static const int tas5086_ratios[] = { | |
336 | 64, 128, 192, 256, 384, 512 | |
337 | }; | |
338 | ||
339 | static int index_in_array(const int *array, int len, int needle) | |
340 | { | |
341 | int i; | |
342 | ||
343 | for (i = 0; i < len; i++) | |
344 | if (array[i] == needle) | |
345 | return i; | |
346 | ||
347 | return -ENOENT; | |
348 | } | |
349 | ||
350 | static int tas5086_hw_params(struct snd_pcm_substream *substream, | |
351 | struct snd_pcm_hw_params *params, | |
352 | struct snd_soc_dai *dai) | |
353 | { | |
354 | struct snd_soc_codec *codec = dai->codec; | |
355 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
28dbd161 | 356 | int val; |
4fa89346 DM |
357 | int ret; |
358 | ||
359 | priv->rate = params_rate(params); | |
360 | ||
361 | /* Look up the sample rate and refer to the offset in the list */ | |
362 | val = index_in_array(tas5086_sample_rates, | |
363 | ARRAY_SIZE(tas5086_sample_rates), priv->rate); | |
364 | ||
365 | if (val < 0) { | |
366 | dev_err(codec->dev, "Invalid sample rate\n"); | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, | |
371 | TAS5086_CLOCK_RATE_MASK, | |
372 | TAS5086_CLOCK_RATE(val)); | |
373 | if (ret < 0) | |
374 | return ret; | |
375 | ||
376 | /* MCLK / Fs ratio */ | |
377 | val = index_in_array(tas5086_ratios, ARRAY_SIZE(tas5086_ratios), | |
378 | priv->mclk / priv->rate); | |
379 | if (val < 0) { | |
380 | dev_err(codec->dev, "Inavlid MCLK / Fs ratio\n"); | |
381 | return -EINVAL; | |
382 | } | |
383 | ||
384 | ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, | |
385 | TAS5086_CLOCK_RATIO_MASK, | |
386 | TAS5086_CLOCK_RATIO(val)); | |
387 | if (ret < 0) | |
388 | return ret; | |
389 | ||
390 | ||
391 | ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, | |
392 | TAS5086_CLOCK_SCLK_RATIO_48, | |
393 | (priv->sclk == 48 * priv->rate) ? | |
394 | TAS5086_CLOCK_SCLK_RATIO_48 : 0); | |
395 | if (ret < 0) | |
396 | return ret; | |
397 | ||
398 | /* | |
399 | * The chip has a very unituitive register mapping and muxes information | |
400 | * about data format and sample depth into the same register, but not on | |
401 | * a logical bit-boundary. Hence, we have to refer to the format passed | |
402 | * in the set_dai_fmt() callback and set up everything from here. | |
403 | * | |
404 | * First, determine the 'base' value, using the format ... | |
405 | */ | |
406 | switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) { | |
407 | case SND_SOC_DAIFMT_RIGHT_J: | |
408 | val = 0x00; | |
409 | break; | |
410 | case SND_SOC_DAIFMT_I2S: | |
411 | val = 0x03; | |
412 | break; | |
413 | case SND_SOC_DAIFMT_LEFT_J: | |
414 | val = 0x06; | |
415 | break; | |
416 | default: | |
417 | dev_err(codec->dev, "Invalid DAI format\n"); | |
418 | return -EINVAL; | |
419 | } | |
420 | ||
421 | /* ... then add the offset for the sample bit depth. */ | |
422 | switch (params_format(params)) { | |
423 | case SNDRV_PCM_FORMAT_S16_LE: | |
424 | val += 0; | |
425 | break; | |
426 | case SNDRV_PCM_FORMAT_S20_3LE: | |
427 | val += 1; | |
428 | break; | |
429 | case SNDRV_PCM_FORMAT_S24_3LE: | |
430 | val += 2; | |
431 | break; | |
432 | default: | |
433 | dev_err(codec->dev, "Invalid bit width\n"); | |
434 | return -EINVAL; | |
1d198f26 | 435 | } |
4fa89346 DM |
436 | |
437 | ret = regmap_write(priv->regmap, TAS5086_SERIAL_DATA_IF, val); | |
438 | if (ret < 0) | |
439 | return ret; | |
440 | ||
441 | /* clock is considered valid now */ | |
442 | ret = regmap_update_bits(priv->regmap, TAS5086_CLOCK_CONTROL, | |
443 | TAS5086_CLOCK_VALID, TAS5086_CLOCK_VALID); | |
444 | if (ret < 0) | |
445 | return ret; | |
446 | ||
447 | return tas5086_set_deemph(codec); | |
448 | } | |
449 | ||
450 | static int tas5086_mute_stream(struct snd_soc_dai *dai, int mute, int stream) | |
451 | { | |
452 | struct snd_soc_codec *codec = dai->codec; | |
453 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
454 | unsigned int val = 0; | |
455 | ||
456 | if (mute) | |
457 | val = TAS5086_SOFT_MUTE_ALL; | |
458 | ||
459 | return regmap_write(priv->regmap, TAS5086_SOFT_MUTE, val); | |
460 | } | |
461 | ||
d5fd3ccc DM |
462 | static void tas5086_reset(struct tas5086_private *priv) |
463 | { | |
464 | if (gpio_is_valid(priv->gpio_nreset)) { | |
465 | /* Reset codec - minimum assertion time is 400ns */ | |
466 | gpio_direction_output(priv->gpio_nreset, 0); | |
467 | udelay(1); | |
468 | gpio_set_value(priv->gpio_nreset, 1); | |
469 | ||
470 | /* Codec needs ~15ms to wake up */ | |
471 | msleep(15); | |
472 | } | |
473 | } | |
474 | ||
475 | /* charge period values in microseconds */ | |
476 | static const int tas5086_charge_period[] = { | |
477 | 13000, 16900, 23400, 31200, 41600, 54600, 72800, 96200, | |
478 | 130000, 156000, 234000, 312000, 416000, 546000, 728000, 962000, | |
479 | 1300000, 169000, 2340000, 3120000, 4160000, 5460000, 7280000, 9620000, | |
480 | }; | |
481 | ||
482 | static int tas5086_init(struct device *dev, struct tas5086_private *priv) | |
483 | { | |
484 | int ret, i; | |
485 | ||
486 | /* | |
487 | * If any of the channels is configured to start in Mid-Z mode, | |
488 | * configure 'part 1' of the PWM starts to use Mid-Z, and tell | |
489 | * all configured mid-z channels to start start under 'part 1'. | |
490 | */ | |
491 | if (priv->pwm_start_mid_z) | |
492 | regmap_write(priv->regmap, TAS5086_PWM_START, | |
493 | TAS5086_PWM_START_MIDZ_FOR_START_1 | | |
494 | priv->pwm_start_mid_z); | |
495 | ||
496 | /* lookup and set split-capacitor charge period */ | |
497 | if (priv->charge_period == 0) { | |
498 | regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0); | |
499 | } else { | |
500 | i = index_in_array(tas5086_charge_period, | |
501 | ARRAY_SIZE(tas5086_charge_period), | |
502 | priv->charge_period); | |
503 | if (i >= 0) | |
504 | regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, | |
505 | i + 0x08); | |
506 | else | |
507 | dev_warn(dev, | |
508 | "Invalid split-cap charge period of %d ns.\n", | |
509 | priv->charge_period); | |
510 | } | |
511 | ||
512 | /* enable factory trim */ | |
513 | ret = regmap_write(priv->regmap, TAS5086_OSC_TRIM, 0x00); | |
514 | if (ret < 0) | |
515 | return ret; | |
516 | ||
517 | /* start all channels */ | |
518 | ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x20); | |
519 | if (ret < 0) | |
520 | return ret; | |
521 | ||
522 | /* mute all channels for now */ | |
523 | ret = regmap_write(priv->regmap, TAS5086_SOFT_MUTE, | |
524 | TAS5086_SOFT_MUTE_ALL); | |
525 | if (ret < 0) | |
526 | return ret; | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
4fa89346 DM |
531 | /* TAS5086 controls */ |
532 | static const DECLARE_TLV_DB_SCALE(tas5086_dac_tlv, -10350, 50, 1); | |
533 | ||
534 | static const struct snd_kcontrol_new tas5086_controls[] = { | |
535 | SOC_SINGLE_TLV("Master Playback Volume", TAS5086_MASTER_VOL, | |
536 | 0, 0xff, 1, tas5086_dac_tlv), | |
537 | SOC_DOUBLE_R_TLV("Channel 1/2 Playback Volume", | |
538 | TAS5086_CHANNEL_VOL(0), TAS5086_CHANNEL_VOL(1), | |
539 | 0, 0xff, 1, tas5086_dac_tlv), | |
540 | SOC_DOUBLE_R_TLV("Channel 3/4 Playback Volume", | |
541 | TAS5086_CHANNEL_VOL(2), TAS5086_CHANNEL_VOL(3), | |
542 | 0, 0xff, 1, tas5086_dac_tlv), | |
543 | SOC_DOUBLE_R_TLV("Channel 5/6 Playback Volume", | |
544 | TAS5086_CHANNEL_VOL(4), TAS5086_CHANNEL_VOL(5), | |
545 | 0, 0xff, 1, tas5086_dac_tlv), | |
546 | SOC_SINGLE_BOOL_EXT("De-emphasis Switch", 0, | |
547 | tas5086_get_deemph, tas5086_put_deemph), | |
548 | }; | |
549 | ||
18710acd DM |
550 | /* Input mux controls */ |
551 | static const char *tas5086_dapm_sdin_texts[] = | |
552 | { | |
553 | "SDIN1-L", "SDIN1-R", "SDIN2-L", "SDIN2-R", | |
554 | "SDIN3-L", "SDIN3-R", "Ground (0)", "nc" | |
555 | }; | |
556 | ||
557 | static const struct soc_enum tas5086_dapm_input_mux_enum[] = { | |
558 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 20, 8, tas5086_dapm_sdin_texts), | |
559 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 16, 8, tas5086_dapm_sdin_texts), | |
560 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 12, 8, tas5086_dapm_sdin_texts), | |
561 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 8, 8, tas5086_dapm_sdin_texts), | |
562 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 4, 8, tas5086_dapm_sdin_texts), | |
563 | SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 0, 8, tas5086_dapm_sdin_texts), | |
564 | }; | |
565 | ||
566 | static const struct snd_kcontrol_new tas5086_dapm_input_mux_controls[] = { | |
567 | SOC_DAPM_ENUM("Channel 1 input", tas5086_dapm_input_mux_enum[0]), | |
568 | SOC_DAPM_ENUM("Channel 2 input", tas5086_dapm_input_mux_enum[1]), | |
569 | SOC_DAPM_ENUM("Channel 3 input", tas5086_dapm_input_mux_enum[2]), | |
570 | SOC_DAPM_ENUM("Channel 4 input", tas5086_dapm_input_mux_enum[3]), | |
571 | SOC_DAPM_ENUM("Channel 5 input", tas5086_dapm_input_mux_enum[4]), | |
572 | SOC_DAPM_ENUM("Channel 6 input", tas5086_dapm_input_mux_enum[5]), | |
573 | }; | |
574 | ||
575 | /* Output mux controls */ | |
576 | static const char *tas5086_dapm_channel_texts[] = | |
577 | { "Channel 1 Mux", "Channel 2 Mux", "Channel 3 Mux", | |
578 | "Channel 4 Mux", "Channel 5 Mux", "Channel 6 Mux" }; | |
579 | ||
580 | static const struct soc_enum tas5086_dapm_output_mux_enum[] = { | |
581 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 20, 6, tas5086_dapm_channel_texts), | |
582 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 16, 6, tas5086_dapm_channel_texts), | |
583 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 12, 6, tas5086_dapm_channel_texts), | |
584 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 8, 6, tas5086_dapm_channel_texts), | |
585 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 4, 6, tas5086_dapm_channel_texts), | |
586 | SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 0, 6, tas5086_dapm_channel_texts), | |
587 | }; | |
588 | ||
589 | static const struct snd_kcontrol_new tas5086_dapm_output_mux_controls[] = { | |
590 | SOC_DAPM_ENUM("PWM1 Output", tas5086_dapm_output_mux_enum[0]), | |
591 | SOC_DAPM_ENUM("PWM2 Output", tas5086_dapm_output_mux_enum[1]), | |
592 | SOC_DAPM_ENUM("PWM3 Output", tas5086_dapm_output_mux_enum[2]), | |
593 | SOC_DAPM_ENUM("PWM4 Output", tas5086_dapm_output_mux_enum[3]), | |
594 | SOC_DAPM_ENUM("PWM5 Output", tas5086_dapm_output_mux_enum[4]), | |
595 | SOC_DAPM_ENUM("PWM6 Output", tas5086_dapm_output_mux_enum[5]), | |
596 | }; | |
597 | ||
598 | static const struct snd_soc_dapm_widget tas5086_dapm_widgets[] = { | |
599 | SND_SOC_DAPM_INPUT("SDIN1-L"), | |
600 | SND_SOC_DAPM_INPUT("SDIN1-R"), | |
601 | SND_SOC_DAPM_INPUT("SDIN2-L"), | |
602 | SND_SOC_DAPM_INPUT("SDIN2-R"), | |
603 | SND_SOC_DAPM_INPUT("SDIN3-L"), | |
604 | SND_SOC_DAPM_INPUT("SDIN3-R"), | |
605 | SND_SOC_DAPM_INPUT("SDIN4-L"), | |
606 | SND_SOC_DAPM_INPUT("SDIN4-R"), | |
607 | ||
608 | SND_SOC_DAPM_OUTPUT("PWM1"), | |
609 | SND_SOC_DAPM_OUTPUT("PWM2"), | |
610 | SND_SOC_DAPM_OUTPUT("PWM3"), | |
611 | SND_SOC_DAPM_OUTPUT("PWM4"), | |
612 | SND_SOC_DAPM_OUTPUT("PWM5"), | |
613 | SND_SOC_DAPM_OUTPUT("PWM6"), | |
614 | ||
615 | SND_SOC_DAPM_MUX("Channel 1 Mux", SND_SOC_NOPM, 0, 0, | |
616 | &tas5086_dapm_input_mux_controls[0]), | |
617 | SND_SOC_DAPM_MUX("Channel 2 Mux", SND_SOC_NOPM, 0, 0, | |
618 | &tas5086_dapm_input_mux_controls[1]), | |
619 | SND_SOC_DAPM_MUX("Channel 3 Mux", SND_SOC_NOPM, 0, 0, | |
620 | &tas5086_dapm_input_mux_controls[2]), | |
621 | SND_SOC_DAPM_MUX("Channel 4 Mux", SND_SOC_NOPM, 0, 0, | |
622 | &tas5086_dapm_input_mux_controls[3]), | |
623 | SND_SOC_DAPM_MUX("Channel 5 Mux", SND_SOC_NOPM, 0, 0, | |
624 | &tas5086_dapm_input_mux_controls[4]), | |
625 | SND_SOC_DAPM_MUX("Channel 6 Mux", SND_SOC_NOPM, 0, 0, | |
626 | &tas5086_dapm_input_mux_controls[5]), | |
627 | ||
628 | SND_SOC_DAPM_MUX("PWM1 Mux", SND_SOC_NOPM, 0, 0, | |
629 | &tas5086_dapm_output_mux_controls[0]), | |
630 | SND_SOC_DAPM_MUX("PWM2 Mux", SND_SOC_NOPM, 0, 0, | |
631 | &tas5086_dapm_output_mux_controls[1]), | |
632 | SND_SOC_DAPM_MUX("PWM3 Mux", SND_SOC_NOPM, 0, 0, | |
633 | &tas5086_dapm_output_mux_controls[2]), | |
634 | SND_SOC_DAPM_MUX("PWM4 Mux", SND_SOC_NOPM, 0, 0, | |
635 | &tas5086_dapm_output_mux_controls[3]), | |
636 | SND_SOC_DAPM_MUX("PWM5 Mux", SND_SOC_NOPM, 0, 0, | |
637 | &tas5086_dapm_output_mux_controls[4]), | |
638 | SND_SOC_DAPM_MUX("PWM6 Mux", SND_SOC_NOPM, 0, 0, | |
639 | &tas5086_dapm_output_mux_controls[5]), | |
640 | }; | |
641 | ||
642 | static const struct snd_soc_dapm_route tas5086_dapm_routes[] = { | |
643 | /* SDIN inputs -> channel muxes */ | |
644 | { "Channel 1 Mux", "SDIN1-L", "SDIN1-L" }, | |
645 | { "Channel 1 Mux", "SDIN1-R", "SDIN1-R" }, | |
646 | { "Channel 1 Mux", "SDIN2-L", "SDIN2-L" }, | |
647 | { "Channel 1 Mux", "SDIN2-R", "SDIN2-R" }, | |
648 | { "Channel 1 Mux", "SDIN3-L", "SDIN3-L" }, | |
649 | { "Channel 1 Mux", "SDIN3-R", "SDIN3-R" }, | |
650 | ||
651 | { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" }, | |
652 | { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" }, | |
653 | { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" }, | |
654 | { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" }, | |
655 | { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" }, | |
656 | { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" }, | |
657 | ||
658 | { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" }, | |
659 | { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" }, | |
660 | { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" }, | |
661 | { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" }, | |
662 | { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" }, | |
663 | { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" }, | |
664 | ||
665 | { "Channel 3 Mux", "SDIN1-L", "SDIN1-L" }, | |
666 | { "Channel 3 Mux", "SDIN1-R", "SDIN1-R" }, | |
667 | { "Channel 3 Mux", "SDIN2-L", "SDIN2-L" }, | |
668 | { "Channel 3 Mux", "SDIN2-R", "SDIN2-R" }, | |
669 | { "Channel 3 Mux", "SDIN3-L", "SDIN3-L" }, | |
670 | { "Channel 3 Mux", "SDIN3-R", "SDIN3-R" }, | |
671 | ||
672 | { "Channel 4 Mux", "SDIN1-L", "SDIN1-L" }, | |
673 | { "Channel 4 Mux", "SDIN1-R", "SDIN1-R" }, | |
674 | { "Channel 4 Mux", "SDIN2-L", "SDIN2-L" }, | |
675 | { "Channel 4 Mux", "SDIN2-R", "SDIN2-R" }, | |
676 | { "Channel 4 Mux", "SDIN3-L", "SDIN3-L" }, | |
677 | { "Channel 4 Mux", "SDIN3-R", "SDIN3-R" }, | |
678 | ||
679 | { "Channel 5 Mux", "SDIN1-L", "SDIN1-L" }, | |
680 | { "Channel 5 Mux", "SDIN1-R", "SDIN1-R" }, | |
681 | { "Channel 5 Mux", "SDIN2-L", "SDIN2-L" }, | |
682 | { "Channel 5 Mux", "SDIN2-R", "SDIN2-R" }, | |
683 | { "Channel 5 Mux", "SDIN3-L", "SDIN3-L" }, | |
684 | { "Channel 5 Mux", "SDIN3-R", "SDIN3-R" }, | |
685 | ||
686 | { "Channel 6 Mux", "SDIN1-L", "SDIN1-L" }, | |
687 | { "Channel 6 Mux", "SDIN1-R", "SDIN1-R" }, | |
688 | { "Channel 6 Mux", "SDIN2-L", "SDIN2-L" }, | |
689 | { "Channel 6 Mux", "SDIN2-R", "SDIN2-R" }, | |
690 | { "Channel 6 Mux", "SDIN3-L", "SDIN3-L" }, | |
691 | { "Channel 6 Mux", "SDIN3-R", "SDIN3-R" }, | |
692 | ||
693 | /* Channel muxes -> PWM muxes */ | |
694 | { "PWM1 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
695 | { "PWM2 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
696 | { "PWM3 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
697 | { "PWM4 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
698 | { "PWM5 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
699 | { "PWM6 Mux", "Channel 1 Mux", "Channel 1 Mux" }, | |
700 | ||
701 | { "PWM1 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
702 | { "PWM2 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
703 | { "PWM3 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
704 | { "PWM4 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
705 | { "PWM5 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
706 | { "PWM6 Mux", "Channel 2 Mux", "Channel 2 Mux" }, | |
707 | ||
708 | { "PWM1 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
709 | { "PWM2 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
710 | { "PWM3 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
711 | { "PWM4 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
712 | { "PWM5 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
713 | { "PWM6 Mux", "Channel 3 Mux", "Channel 3 Mux" }, | |
714 | ||
715 | { "PWM1 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
716 | { "PWM2 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
717 | { "PWM3 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
718 | { "PWM4 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
719 | { "PWM5 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
720 | { "PWM6 Mux", "Channel 4 Mux", "Channel 4 Mux" }, | |
721 | ||
722 | { "PWM1 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
723 | { "PWM2 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
724 | { "PWM3 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
725 | { "PWM4 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
726 | { "PWM5 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
727 | { "PWM6 Mux", "Channel 5 Mux", "Channel 5 Mux" }, | |
728 | ||
729 | { "PWM1 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
730 | { "PWM2 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
731 | { "PWM3 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
732 | { "PWM4 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
733 | { "PWM5 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
734 | { "PWM6 Mux", "Channel 6 Mux", "Channel 6 Mux" }, | |
735 | ||
736 | /* The PWM muxes are directly connected to the PWM outputs */ | |
737 | { "PWM1", NULL, "PWM1 Mux" }, | |
738 | { "PWM2", NULL, "PWM2 Mux" }, | |
739 | { "PWM3", NULL, "PWM3 Mux" }, | |
740 | { "PWM4", NULL, "PWM4 Mux" }, | |
741 | { "PWM5", NULL, "PWM5 Mux" }, | |
742 | { "PWM6", NULL, "PWM6 Mux" }, | |
743 | ||
744 | }; | |
745 | ||
4fa89346 DM |
746 | static const struct snd_soc_dai_ops tas5086_dai_ops = { |
747 | .hw_params = tas5086_hw_params, | |
748 | .set_sysclk = tas5086_set_dai_sysclk, | |
749 | .set_fmt = tas5086_set_dai_fmt, | |
750 | .mute_stream = tas5086_mute_stream, | |
751 | }; | |
752 | ||
753 | static struct snd_soc_dai_driver tas5086_dai = { | |
754 | .name = "tas5086-hifi", | |
755 | .playback = { | |
756 | .stream_name = "Playback", | |
757 | .channels_min = 2, | |
758 | .channels_max = 6, | |
759 | .rates = TAS5086_PCM_RATES, | |
760 | .formats = TAS5086_PCM_FORMATS, | |
761 | }, | |
762 | .ops = &tas5086_dai_ops, | |
763 | }; | |
764 | ||
765 | #ifdef CONFIG_PM | |
25c84cc1 DM |
766 | static int tas5086_soc_suspend(struct snd_soc_codec *codec) |
767 | { | |
768 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
769 | int ret; | |
770 | ||
771 | /* Shut down all channels */ | |
772 | ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x60); | |
773 | if (ret < 0) | |
774 | return ret; | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
4fa89346 DM |
779 | static int tas5086_soc_resume(struct snd_soc_codec *codec) |
780 | { | |
781 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
25c84cc1 DM |
782 | int ret; |
783 | ||
784 | tas5086_reset(priv); | |
785 | regcache_mark_dirty(priv->regmap); | |
786 | ||
787 | ret = tas5086_init(codec->dev, priv); | |
788 | if (ret < 0) | |
789 | return ret; | |
4fa89346 | 790 | |
25c84cc1 DM |
791 | ret = regcache_sync(priv->regmap); |
792 | if (ret < 0) | |
793 | return ret; | |
4fa89346 | 794 | |
25c84cc1 | 795 | return 0; |
4fa89346 DM |
796 | } |
797 | #else | |
25c84cc1 | 798 | #define tas5086_soc_suspend NULL |
4fa89346 DM |
799 | #define tas5086_soc_resume NULL |
800 | #endif /* CONFIG_PM */ | |
801 | ||
802 | #ifdef CONFIG_OF | |
803 | static const struct of_device_id tas5086_dt_ids[] = { | |
804 | { .compatible = "ti,tas5086", }, | |
805 | { } | |
806 | }; | |
807 | MODULE_DEVICE_TABLE(of, tas5086_dt_ids); | |
808 | #endif | |
809 | ||
4fa89346 DM |
810 | static int tas5086_probe(struct snd_soc_codec *codec) |
811 | { | |
812 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
4fa89346 DM |
813 | int i, ret; |
814 | ||
648c5382 DM |
815 | priv->pwm_start_mid_z = 0; |
816 | priv->charge_period = 1300000; /* hardware default is 1300 ms */ | |
817 | ||
4fa89346 DM |
818 | if (of_match_device(of_match_ptr(tas5086_dt_ids), codec->dev)) { |
819 | struct device_node *of_node = codec->dev->of_node; | |
d5fd3ccc | 820 | |
648c5382 DM |
821 | of_property_read_u32(of_node, "ti,charge-period", |
822 | &priv->charge_period); | |
79b23b56 DM |
823 | |
824 | for (i = 0; i < 6; i++) { | |
825 | char name[25]; | |
826 | ||
827 | snprintf(name, sizeof(name), | |
828 | "ti,mid-z-channel-%d", i + 1); | |
829 | ||
830 | if (of_get_property(of_node, name, NULL) != NULL) | |
648c5382 | 831 | priv->pwm_start_mid_z |= 1 << i; |
79b23b56 | 832 | } |
4fa89346 DM |
833 | } |
834 | ||
d5fd3ccc | 835 | ret = tas5086_init(codec->dev, priv); |
4fa89346 DM |
836 | if (ret < 0) |
837 | return ret; | |
838 | ||
839 | /* set master volume to 0 dB */ | |
840 | ret = regmap_write(priv->regmap, TAS5086_MASTER_VOL, 0x30); | |
841 | if (ret < 0) | |
842 | return ret; | |
843 | ||
4fa89346 DM |
844 | return 0; |
845 | } | |
846 | ||
847 | static int tas5086_remove(struct snd_soc_codec *codec) | |
848 | { | |
849 | struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec); | |
850 | ||
851 | if (gpio_is_valid(priv->gpio_nreset)) | |
852 | /* Set codec to the reset state */ | |
853 | gpio_set_value(priv->gpio_nreset, 0); | |
854 | ||
855 | return 0; | |
856 | }; | |
857 | ||
858 | static struct snd_soc_codec_driver soc_codec_dev_tas5086 = { | |
859 | .probe = tas5086_probe, | |
860 | .remove = tas5086_remove, | |
25c84cc1 | 861 | .suspend = tas5086_soc_suspend, |
4fa89346 DM |
862 | .resume = tas5086_soc_resume, |
863 | .controls = tas5086_controls, | |
864 | .num_controls = ARRAY_SIZE(tas5086_controls), | |
18710acd DM |
865 | .dapm_widgets = tas5086_dapm_widgets, |
866 | .num_dapm_widgets = ARRAY_SIZE(tas5086_dapm_widgets), | |
867 | .dapm_routes = tas5086_dapm_routes, | |
868 | .num_dapm_routes = ARRAY_SIZE(tas5086_dapm_routes), | |
4fa89346 DM |
869 | }; |
870 | ||
871 | static const struct i2c_device_id tas5086_i2c_id[] = { | |
872 | { "tas5086", 0 }, | |
873 | { } | |
874 | }; | |
875 | MODULE_DEVICE_TABLE(i2c, tas5086_i2c_id); | |
876 | ||
877 | static const struct regmap_config tas5086_regmap = { | |
878 | .reg_bits = 8, | |
8892d479 DM |
879 | .val_bits = 32, |
880 | .max_register = TAS5086_MAX_REGISTER, | |
4fa89346 DM |
881 | .reg_defaults = tas5086_reg_defaults, |
882 | .num_reg_defaults = ARRAY_SIZE(tas5086_reg_defaults), | |
883 | .cache_type = REGCACHE_RBTREE, | |
884 | .volatile_reg = tas5086_volatile_reg, | |
885 | .writeable_reg = tas5086_writeable_reg, | |
886 | .readable_reg = tas5086_accessible_reg, | |
6b36d370 DM |
887 | .reg_read = tas5086_reg_read, |
888 | .reg_write = tas5086_reg_write, | |
4fa89346 DM |
889 | }; |
890 | ||
891 | static int tas5086_i2c_probe(struct i2c_client *i2c, | |
892 | const struct i2c_device_id *id) | |
893 | { | |
894 | struct tas5086_private *priv; | |
895 | struct device *dev = &i2c->dev; | |
896 | int gpio_nreset = -EINVAL; | |
897 | int i, ret; | |
898 | ||
899 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); | |
900 | if (!priv) | |
901 | return -ENOMEM; | |
902 | ||
6b36d370 | 903 | priv->regmap = devm_regmap_init(dev, NULL, i2c, &tas5086_regmap); |
4fa89346 DM |
904 | if (IS_ERR(priv->regmap)) { |
905 | ret = PTR_ERR(priv->regmap); | |
906 | dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret); | |
907 | return ret; | |
908 | } | |
909 | ||
910 | i2c_set_clientdata(i2c, priv); | |
911 | ||
912 | if (of_match_device(of_match_ptr(tas5086_dt_ids), dev)) { | |
913 | struct device_node *of_node = dev->of_node; | |
914 | gpio_nreset = of_get_named_gpio(of_node, "reset-gpio", 0); | |
915 | } | |
916 | ||
917 | if (gpio_is_valid(gpio_nreset)) | |
918 | if (devm_gpio_request(dev, gpio_nreset, "TAS5086 Reset")) | |
919 | gpio_nreset = -EINVAL; | |
920 | ||
4fa89346 | 921 | priv->gpio_nreset = gpio_nreset; |
d5fd3ccc | 922 | tas5086_reset(priv); |
4fa89346 DM |
923 | |
924 | /* The TAS5086 always returns 0x03 in its TAS5086_DEV_ID register */ | |
925 | ret = regmap_read(priv->regmap, TAS5086_DEV_ID, &i); | |
926 | if (ret < 0) | |
927 | return ret; | |
928 | ||
929 | if (i != 0x3) { | |
930 | dev_err(dev, | |
931 | "Failed to identify TAS5086 codec (got %02x)\n", i); | |
932 | return -ENODEV; | |
933 | } | |
934 | ||
935 | return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_tas5086, | |
936 | &tas5086_dai, 1); | |
937 | } | |
938 | ||
939 | static int tas5086_i2c_remove(struct i2c_client *i2c) | |
940 | { | |
941 | snd_soc_unregister_codec(&i2c->dev); | |
942 | return 0; | |
943 | } | |
944 | ||
945 | static struct i2c_driver tas5086_i2c_driver = { | |
946 | .driver = { | |
947 | .name = "tas5086", | |
948 | .owner = THIS_MODULE, | |
949 | .of_match_table = of_match_ptr(tas5086_dt_ids), | |
950 | }, | |
951 | .id_table = tas5086_i2c_id, | |
952 | .probe = tas5086_i2c_probe, | |
953 | .remove = tas5086_i2c_remove, | |
954 | }; | |
955 | ||
c300d6de | 956 | module_i2c_driver(tas5086_i2c_driver); |
4fa89346 DM |
957 | |
958 | MODULE_AUTHOR("Daniel Mack <zonque@gmail.com>"); | |
959 | MODULE_DESCRIPTION("Texas Instruments TAS5086 ALSA SoC Codec Driver"); | |
960 | MODULE_LICENSE("GPL"); |