1 // SPDX-License-Identifier: GPL-2.0
2 // Driver for the Texas Instruments TAS2780 Mono
3 // Audio amplifier
4 // Copyright (C) 2022 Texas Instruments Inc.
5
6 #include <linux/module.h>
7 #include <linux/err.h>
8 #include <linux/pm.h>
9 #include <linux/i2c.h>
10 #include <linux/gpio.h>
11 #include <linux/gpio/consumer.h>
12 #include <linux/regmap.h>
13 #include <linux/of.h>
14 #include <sound/soc.h>
15 #include <sound/pcm.h>
16 #include <sound/pcm_params.h>
17 #include <sound/tlv.h>
18
19 #include "tas2780.h"
20
21 struct tas2780_priv {
22 struct snd_soc_component *component;
23 struct gpio_desc *reset_gpio;
24 struct regmap *regmap;
25 struct device *dev;
26 int v_sense_slot;
27 int i_sense_slot;
28 };
29
30 static void tas2780_reset(struct tas2780_priv *tas2780)
31 {
32 int ret = 0;
33
34 if (tas2780->reset_gpio) {
35 gpiod_set_value_cansleep(tas2780->reset_gpio, 0);
36 usleep_range(2000, 2050);
37 gpiod_set_value_cansleep(tas2780->reset_gpio, 1);
38 usleep_range(2000, 2050);
39 }
40
41 ret = snd_soc_component_write(tas2780->component, TAS2780_SW_RST,
42 TAS2780_RST);
43 if (ret)
44 dev_err(tas2780->dev, "%s:errCode:0x%x Reset error!\n",
45 __func__, ret);
46 }
47
48 #ifdef CONFIG_PM
49 static int tas2780_codec_suspend(struct snd_soc_component *component)
50 {
51 struct tas2780_priv *tas2780 =
52 snd_soc_component_get_drvdata(component);
53 int ret = 0;
54
55 ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,
56 TAS2780_PWR_CTRL_MASK, TAS2780_PWR_CTRL_SHUTDOWN);
57 if (ret < 0) {
58 dev_err(tas2780->dev, "%s:errCode:0x%0x:power down error\n",
59 __func__, ret);
60 goto err;
61 }
62 ret = 0;
63 regcache_cache_only(tas2780->regmap, true);
64 regcache_mark_dirty(tas2780->regmap);
65 err:
66 return ret;
67 }
68
69 static int tas2780_codec_resume(struct snd_soc_component *component)
70 {
71 struct tas2780_priv *tas2780 =
72 snd_soc_component_get_drvdata(component);
73 int ret;
74
75 ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,
76 TAS2780_PWR_CTRL_MASK, TAS2780_PWR_CTRL_ACTIVE);
77
78 if (ret < 0) {
79 dev_err(tas2780->dev, "%s:errCode:0x%0x:power down error\n",
80 __func__, ret);
81 goto err;
82 }
83 regcache_cache_only(tas2780->regmap, false);
84 ret = regcache_sync(tas2780->regmap);
85 err:
86 return ret;
87 }
88 #endif
89
90 static const char * const tas2780_ASI1_src[] = {
91 "I2C offset", "Left", "Right", "LeftRightDiv2",
92 };
93
94 static SOC_ENUM_SINGLE_DECL(
95 tas2780_ASI1_src_enum, TAS2780_TDM_CFG2, 4, tas2780_ASI1_src);
96
97 static const struct snd_kcontrol_new tas2780_asi1_mux =
98 SOC_DAPM_ENUM("ASI1 Source", tas2780_ASI1_src_enum);
99
100 static const struct snd_kcontrol_new isense_switch =
101 SOC_DAPM_SINGLE("Switch", TAS2780_PWR_CTRL,
102 TAS2780_ISENSE_POWER_EN, 1, 1);
103 static const struct snd_kcontrol_new vsense_switch =
104 SOC_DAPM_SINGLE("Switch", TAS2780_PWR_CTRL,
105 TAS2780_VSENSE_POWER_EN, 1, 1);
106
107 static const struct snd_soc_dapm_widget tas2780_dapm_widgets[] = {
108 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
109 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2780_asi1_mux),
110 SND_SOC_DAPM_SWITCH("ISENSE", TAS2780_PWR_CTRL,
111 TAS2780_ISENSE_POWER_EN, 1, &isense_switch),
112 SND_SOC_DAPM_SWITCH("VSENSE", TAS2780_PWR_CTRL,
113 TAS2780_VSENSE_POWER_EN, 1, &vsense_switch),
114 SND_SOC_DAPM_OUTPUT("OUT"),
115 SND_SOC_DAPM_SIGGEN("VMON"),
116 SND_SOC_DAPM_SIGGEN("IMON")
117 };
118
119 static const struct snd_soc_dapm_route tas2780_audio_map[] = {
120 {"ASI1 Sel", "I2C offset", "ASI1"},
121 {"ASI1 Sel", "Left", "ASI1"},
122 {"ASI1 Sel", "Right", "ASI1"},
123 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
124 {"OUT", NULL, "ASI1 Sel"},
125 {"ISENSE", "Switch", "IMON"},
126 {"VSENSE", "Switch", "VMON"},
127 };
128
129 static int tas2780_mute(struct snd_soc_dai *dai, int mute, int direction)
130 {
131 struct snd_soc_component *component = dai->component;
132 struct tas2780_priv *tas2780 =
133 snd_soc_component_get_drvdata(component);
134 int ret = 0;
135
136 ret = snd_soc_component_update_bits(component, TAS2780_PWR_CTRL,
137 TAS2780_PWR_CTRL_MASK,
138 mute ? TAS2780_PWR_CTRL_MUTE : 0);
139 if (ret < 0) {
140 dev_err(tas2780->dev, "%s: Failed to set powercontrol\n",
141 __func__);
142 goto err;
143 }
144 ret = 0;
145 err:
146 return ret;
147 }
148
149 static int tas2780_set_bitwidth(struct tas2780_priv *tas2780, int bitwidth)
150 {
151 struct snd_soc_component *component = tas2780->component;
152 int sense_en;
153 int val;
154 int ret;
155 int slot_size;
156
157 switch (bitwidth) {
158 case SNDRV_PCM_FORMAT_S16_LE:
159 ret = snd_soc_component_update_bits(component,
160 TAS2780_TDM_CFG2,
161 TAS2780_TDM_CFG2_RXW_MASK,
162 TAS2780_TDM_CFG2_RXW_16BITS);
163 slot_size = TAS2780_TDM_CFG2_RXS_16BITS;
164 break;
165 case SNDRV_PCM_FORMAT_S24_LE:
166 ret = snd_soc_component_update_bits(component,
167 TAS2780_TDM_CFG2,
168 TAS2780_TDM_CFG2_RXW_MASK,
169 TAS2780_TDM_CFG2_RXW_24BITS);
170 slot_size = TAS2780_TDM_CFG2_RXS_24BITS;
171 break;
172 case SNDRV_PCM_FORMAT_S32_LE:
173 ret = snd_soc_component_update_bits(component,
174 TAS2780_TDM_CFG2,
175 TAS2780_TDM_CFG2_RXW_MASK,
176 TAS2780_TDM_CFG2_RXW_32BITS);
177 slot_size = TAS2780_TDM_CFG2_RXS_32BITS;
178 break;
179
180 default:
181 ret = -EINVAL;
182 }
183
184 if (ret < 0) {
185 dev_err(tas2780->dev, "%s:errCode:0x%x set bitwidth error\n",
186 __func__, ret);
187 goto err;
188 }
189
190 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,
191 TAS2780_TDM_CFG2_RXS_MASK, slot_size);
192 if (ret < 0) {
193 dev_err(tas2780->dev,
194 "%s:errCode:0x%x set RX slot size error\n",
195 __func__, ret);
196 goto err;
197 }
198
199 val = snd_soc_component_read(tas2780->component, TAS2780_PWR_CTRL);
200 if (val < 0) {
201 dev_err(tas2780->dev, "%s:errCode:0x%x read PWR_CTRL error\n",
202 __func__, val);
203 ret = val;
204 goto err;
205 }
206
207 if (val & (1 << TAS2780_VSENSE_POWER_EN))
208 sense_en = 0;
209 else
210 sense_en = TAS2780_TDM_CFG5_VSNS_ENABLE;
211
212 ret = snd_soc_component_update_bits(tas2780->component,
213 TAS2780_TDM_CFG5, TAS2780_TDM_CFG5_VSNS_ENABLE, sense_en);
214 if (ret < 0) {
215 dev_err(tas2780->dev, "%s:errCode:0x%x enable vSNS error\n",
216 __func__, ret);
217 goto err;
218 }
219
220 if (val & (1 << TAS2780_ISENSE_POWER_EN))
221 sense_en = 0;
222 else
223 sense_en = TAS2780_TDM_CFG6_ISNS_ENABLE;
224
225 ret = snd_soc_component_update_bits(tas2780->component,
226 TAS2780_TDM_CFG6, TAS2780_TDM_CFG6_ISNS_ENABLE, sense_en);
227 if (ret < 0) {
228 dev_err(tas2780->dev, "%s:errCode:0x%x enable iSNS error\n",
229 __func__, ret);
230 goto err;
231 }
232 ret = 0;
233 err:
234 return ret;
235 }
236
237 static int tas2780_set_samplerate(
238 struct tas2780_priv *tas2780, int samplerate)
239 {
240 struct snd_soc_component *component = tas2780->component;
241 int ramp_rate_val;
242 int ret;
243
244 switch (samplerate) {
245 case 48000:
246 ramp_rate_val = TAS2780_TDM_CFG0_SMP_48KHZ |
247 TAS2780_TDM_CFG0_44_1_48KHZ;
248 break;
249 case 44100:
250 ramp_rate_val = TAS2780_TDM_CFG0_SMP_44_1KHZ |
251 TAS2780_TDM_CFG0_44_1_48KHZ;
252 break;
253 case 96000:
254 ramp_rate_val = TAS2780_TDM_CFG0_SMP_48KHZ |
255 TAS2780_TDM_CFG0_88_2_96KHZ;
256 break;
257 case 88200:
258 ramp_rate_val = TAS2780_TDM_CFG0_SMP_44_1KHZ |
259 TAS2780_TDM_CFG0_88_2_96KHZ;
260 break;
261 default:
262 return -EINVAL;
263 }
264 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG0,
265 TAS2780_TDM_CFG0_SMP_MASK | TAS2780_TDM_CFG0_MASK,
266 ramp_rate_val);
267 if (ret < 0) {
268 dev_err(tas2780->dev,
269 "%s:errCode:0x%x Failed to set ramp_rate_val\n",
270 __func__, ret);
271 goto err;
272 }
273 ret = 0;
274 err:
275 return ret;
276 }
277
278 static int tas2780_hw_params(struct snd_pcm_substream *substream,
279 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
280 {
281 struct snd_soc_component *component = dai->component;
282 struct tas2780_priv *tas2780 =
283 snd_soc_component_get_drvdata(component);
284 int ret;
285
286 ret = tas2780_set_bitwidth(tas2780, params_format(params));
287 if (ret < 0)
288 return ret;
289
290 return tas2780_set_samplerate(tas2780, params_rate(params));
291 }
292
293 static int tas2780_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
294 {
295 struct snd_soc_component *component = dai->component;
296 struct tas2780_priv *tas2780 =
297 snd_soc_component_get_drvdata(component);
298 u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
299 int iface;
300 int ret = 0;
301
302 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
303 case SND_SOC_DAIFMT_NB_NF:
304 asi_cfg_1 = TAS2780_TDM_CFG1_RX_RISING;
305 break;
306 case SND_SOC_DAIFMT_IB_NF:
307 asi_cfg_1 = TAS2780_TDM_CFG1_RX_FALLING;
308 break;
309 default:
310 dev_err(tas2780->dev, "ASI format Inverse is not found\n");
311 return -EINVAL;
312 }
313
314 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG1,
315 TAS2780_TDM_CFG1_RX_MASK, asi_cfg_1);
316 if (ret < 0) {
317 dev_err(tas2780->dev,
318 "%s:errCode:0x%x Failed to set asi_cfg_1\n",
319 __func__, ret);
320 goto err;
321 }
322
323 if (((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S)
324 || ((fmt & SND_SOC_DAIFMT_FORMAT_MASK)
325 == SND_SOC_DAIFMT_DSP_A)){
326 iface = TAS2780_TDM_CFG2_SCFG_I2S;
327 tdm_rx_start_slot = 1;
328 } else {
329 if (((fmt & SND_SOC_DAIFMT_FORMAT_MASK)
330 == SND_SOC_DAIFMT_DSP_B)
331 || ((fmt & SND_SOC_DAIFMT_FORMAT_MASK)
332 == SND_SOC_DAIFMT_LEFT_J)) {
333 iface = TAS2780_TDM_CFG2_SCFG_LEFT_J;
334 tdm_rx_start_slot = 0;
335 } else {
336 dev_err(tas2780->dev,
337 "%s:DAI Format is not found, fmt=0x%x\n",
338 __func__, fmt);
339 ret = -EINVAL;
340 goto err;
341 }
342 }
343 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG1,
344 TAS2780_TDM_CFG1_MASK,
345 (tdm_rx_start_slot << TAS2780_TDM_CFG1_51_SHIFT));
346 if (ret < 0) {
347 dev_err(tas2780->dev,
348 "%s:errCode:0x%x Failed to set tdm_rx_start_slot\n",
349 __func__, ret);
350 goto err;
351 }
352
353 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,
354 TAS2780_TDM_CFG2_SCFG_MASK, iface);
355 if (ret < 0) {
356 dev_err(tas2780->dev, "%s:errCode:0x%x Failed to set iface\n",
357 __func__, ret);
358 goto err;
359 }
360 ret = 0;
361 err:
362 return ret;
363 }
364
365 static int tas2780_set_dai_tdm_slot(struct snd_soc_dai *dai,
366 unsigned int tx_mask,
367 unsigned int rx_mask,
368 int slots, int slot_width)
369 {
370 struct snd_soc_component *component = dai->component;
371 struct tas2780_priv *tas2780 =
372 snd_soc_component_get_drvdata(component);
373 int left_slot, right_slot;
374 int slots_cfg;
375 int slot_size;
376 int ret = 0;
377
378 if (tx_mask == 0 || rx_mask != 0)
379 return -EINVAL;
380
381 left_slot = __ffs(tx_mask);
382 tx_mask &= ~(1 << left_slot);
383 if (tx_mask == 0) {
384 right_slot = left_slot;
385 } else {
386 right_slot = __ffs(tx_mask);
387 tx_mask &= ~(1 << right_slot);
388 }
389
390 if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
391 return -EINVAL;
392
393 slots_cfg = (right_slot << TAS2780_TDM_CFG3_RXS_SHIFT) | left_slot;
394 ret = snd_soc_component_write(component, TAS2780_TDM_CFG3, slots_cfg);
395 if (ret) {
396 dev_err(tas2780->dev,
397 "%s:errCode:0x%x Failed to set slots_cfg\n",
398 __func__, ret);
399 goto err;
400 }
401
402 switch (slot_width) {
403 case 16:
404 slot_size = TAS2780_TDM_CFG2_RXS_16BITS;
405 break;
406 case 24:
407 slot_size = TAS2780_TDM_CFG2_RXS_24BITS;
408 break;
409 case 32:
410 slot_size = TAS2780_TDM_CFG2_RXS_32BITS;
411 break;
412 default:
413 ret = -EINVAL;
414 goto err;
415 }
416
417 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG2,
418 TAS2780_TDM_CFG2_RXS_MASK, slot_size);
419 if (ret < 0) {
420 dev_err(tas2780->dev,
421 "%s:errCode:0x%x Failed to set slot_size\n",
422 __func__, ret);
423 goto err;
424 }
425
426 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG5,
427 TAS2780_TDM_CFG5_50_MASK, tas2780->v_sense_slot);
428 if (ret < 0) {
429 dev_err(tas2780->dev,
430 "%s:errCode:0x%x Failed to set v_sense_slot\n",
431 __func__, ret);
432 goto err;
433 }
434
435 ret = snd_soc_component_update_bits(component, TAS2780_TDM_CFG6,
436 TAS2780_TDM_CFG6_50_MASK, tas2780->i_sense_slot);
437 if (ret < 0) {
438 dev_err(tas2780->dev,
439 "%s:errCode:0x%x Failed to set i_sense_slot\n",
440 __func__, ret);
441 goto err;
442 }
443 ret = 0;
444 err:
445 return ret;
446 }
447
448 static const struct snd_soc_dai_ops tas2780_dai_ops = {
449 .mute_stream = tas2780_mute,
450 .hw_params = tas2780_hw_params,
451 .set_fmt = tas2780_set_fmt,
452 .set_tdm_slot = tas2780_set_dai_tdm_slot,
453 .no_capture_mute = 1,
454 };
455
456 #define TAS2780_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
457 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
458
459 #define TAS2780_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
460 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_88200)
461
462 static struct snd_soc_dai_driver tas2780_dai_driver[] = {
463 {
464 .name = "tas2780 ASI1",
465 .id = 0,
466 .playback = {
467 .stream_name = "ASI1 Playback",
468 .channels_min = 2,
469 .channels_max = 2,
470 .rates = TAS2780_RATES,
471 .formats = TAS2780_FORMATS,
472 },
473 .capture = {
474 .stream_name = "ASI1 Capture",
475 .channels_min = 1,
476 .channels_max = 2,
477 .rates = TAS2780_RATES,
478 .formats = TAS2780_FORMATS,
479 },
480 .ops = &tas2780_dai_ops,
481 .symmetric_rate = 1,
482 },
483 };
484
485 static int tas2780_codec_probe(struct snd_soc_component *component)
486 {
487 struct tas2780_priv *tas2780 =
488 snd_soc_component_get_drvdata(component);
489 int ret = 0;
490
491 tas2780->component = component;
492
493 tas2780_reset(tas2780);
494 ret = snd_soc_component_update_bits(component,
495 TAS2780_IC_CFG, TAS2780_IC_CFG_MASK,
496 TAS2780_IC_CFG_ENABLE);
497 if (ret < 0)
498 dev_err(tas2780->dev, "%s:errCode:0x%0x\n",
499 __func__, ret);
500
501 return ret;
502 }
503
504 static DECLARE_TLV_DB_SCALE(tas2780_digital_tlv, 1100, 50, 0);
505 static DECLARE_TLV_DB_SCALE(tas2780_playback_volume, -10000, 50, 0);
506
507 static const struct snd_kcontrol_new tas2780_snd_controls[] = {
508 SOC_SINGLE_TLV("Speaker Volume", TAS2780_DVC, 0,
509 TAS2780_DVC_MAX, 1, tas2780_playback_volume),
510 SOC_SINGLE_TLV("Amp Gain Volume", TAS2780_CHNL_0, 0, 0x14, 0,
511 tas2780_digital_tlv),
512 };
513
514 static const struct snd_soc_component_driver soc_component_driver_tas2780 = {
515 .probe = tas2780_codec_probe,
516 #ifdef CONFIG_PM
517 .suspend = tas2780_codec_suspend,
518 .resume = tas2780_codec_resume,
519 #endif
520 .controls = tas2780_snd_controls,
521 .num_controls = ARRAY_SIZE(tas2780_snd_controls),
522 .dapm_widgets = tas2780_dapm_widgets,
523 .num_dapm_widgets = ARRAY_SIZE(tas2780_dapm_widgets),
524 .dapm_routes = tas2780_audio_map,
525 .num_dapm_routes = ARRAY_SIZE(tas2780_audio_map),
526 .idle_bias_on = 1,
527 .endianness = 1,
528 };
529
530 static const struct reg_default tas2780_reg_defaults[] = {
531 { TAS2780_PAGE, 0x00 },
532 { TAS2780_SW_RST, 0x00 },
533 { TAS2780_PWR_CTRL, 0x1a },
534 { TAS2780_DVC, 0x00 },
535 { TAS2780_CHNL_0, 0x00 },
536 { TAS2780_TDM_CFG0, 0x09 },
537 { TAS2780_TDM_CFG1, 0x02 },
538 { TAS2780_TDM_CFG2, 0x0a },
539 { TAS2780_TDM_CFG3, 0x10 },
540 { TAS2780_TDM_CFG5, 0x42 },
541 };
542
543 static const struct regmap_range_cfg tas2780_regmap_ranges[] = {
544 {
545 .range_min = 0,
546 .range_max = 1 * 128,
547 .selector_reg = TAS2780_PAGE,
548 .selector_mask = 0xff,
549 .selector_shift = 0,
550 .window_start = 0,
551 .window_len = 128,
552 },
553 };
554
555 static const struct regmap_config tas2780_i2c_regmap = {
556 .reg_bits = 8,
557 .val_bits = 8,
558 .reg_defaults = tas2780_reg_defaults,
559 .num_reg_defaults = ARRAY_SIZE(tas2780_reg_defaults),
560 .cache_type = REGCACHE_RBTREE,
561 .ranges = tas2780_regmap_ranges,
562 .num_ranges = ARRAY_SIZE(tas2780_regmap_ranges),
563 .max_register = 1 * 128,
564 };
565
566 static int tas2780_parse_dt(struct device *dev, struct tas2780_priv *tas2780)
567 {
568 int ret = 0;
569
570 tas2780->reset_gpio = devm_gpiod_get_optional(tas2780->dev, "reset",
571 GPIOD_OUT_HIGH);
572 if (IS_ERR(tas2780->reset_gpio)) {
573 if (PTR_ERR(tas2780->reset_gpio) == -EPROBE_DEFER) {
574 tas2780->reset_gpio = NULL;
575 return -EPROBE_DEFER;
576 }
577 }
578
579 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
580 &tas2780->i_sense_slot);
581 if (ret)
582 tas2780->i_sense_slot = 0;
583
584 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
585 &tas2780->v_sense_slot);
586 if (ret)
587 tas2780->v_sense_slot = 2;
588
589 return 0;
590 }
591
592 static int tas2780_i2c_probe(struct i2c_client *client)
593 {
594 struct tas2780_priv *tas2780;
595 int result;
596
597 tas2780 = devm_kzalloc(&client->dev, sizeof(struct tas2780_priv),
598 GFP_KERNEL);
599 if (!tas2780)
600 return -ENOMEM;
601 tas2780->dev = &client->dev;
602 i2c_set_clientdata(client, tas2780);
603 dev_set_drvdata(&client->dev, tas2780);
604
605 tas2780->regmap = devm_regmap_init_i2c(client, &tas2780_i2c_regmap);
606 if (IS_ERR(tas2780->regmap)) {
607 result = PTR_ERR(tas2780->regmap);
608 dev_err(&client->dev, "Failed to allocate register map: %d\n",
609 result);
610 return result;
611 }
612
613 if (client->dev.of_node) {
614 result = tas2780_parse_dt(&client->dev, tas2780);
615 if (result) {
616 dev_err(tas2780->dev,
617 "%s: Failed to parse devicetree\n", __func__);
618 return result;
619 }
620 }
621
622 return devm_snd_soc_register_component(tas2780->dev,
623 &soc_component_driver_tas2780, tas2780_dai_driver,
624 ARRAY_SIZE(tas2780_dai_driver));
625 }
626
627 static const struct i2c_device_id tas2780_i2c_id[] = {
628 { "tas2780"},
629 { }
630 };
631 MODULE_DEVICE_TABLE(i2c, tas2780_i2c_id);
632
633 #if defined(CONFIG_OF)
634 static const struct of_device_id tas2780_of_match[] = {
635 { .compatible = "ti,tas2780" },
636 {},
637 };
638 MODULE_DEVICE_TABLE(of, tas2780_of_match);
639 #endif
640
641 static struct i2c_driver tas2780_i2c_driver = {
642 .driver = {
643 .name = "tas2780",
644 .of_match_table = of_match_ptr(tas2780_of_match),
645 },
646 .probe = tas2780_i2c_probe,
647 .id_table = tas2780_i2c_id,
648 };
649 module_i2c_driver(tas2780_i2c_driver);
650
651 MODULE_AUTHOR("Raphael Xu <raphael-xu@ti.com>");
652 MODULE_DESCRIPTION("TAS2780 I2C Smart Amplifier driver");
653 MODULE_LICENSE("GPL");
654
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