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1// SPDX-License-Identifier: GPL-2.0-only
2//
3// aw88261.c -- AW88261 ALSA SoC Audio driver
4//
5// Copyright (c) 2023 awinic Technology CO., LTD
6//
7// Author: Jimmy Zhang <zhangjianming@awinic.com>
8// Author: Weidong Wang <wangweidong.a@awinic.com>
9//
10
11#include <linux/i2c.h>
12#include <linux/firmware.h>
13#include <linux/regmap.h>
14#include <sound/soc.h>
15#include "aw88261.h"
16#include "aw88395/aw88395_data_type.h"
17#include "aw88395/aw88395_device.h"
18
19static const struct regmap_config aw88261_remap_config = {
20 .val_bits = 16,
21 .reg_bits = 8,
22 .max_register = AW88261_REG_MAX,
23 .reg_format_endian = REGMAP_ENDIAN_LITTLE,
24 .val_format_endian = REGMAP_ENDIAN_BIG,
25};
26
27static void aw88261_dev_set_volume(struct aw_device *aw_dev, unsigned int value)
28{
29 struct aw_volume_desc *vol_desc = &aw_dev->volume_desc;
30 unsigned int real_value, volume;
31 unsigned int reg_value;
32
33 volume = min((value + vol_desc->init_volume), (unsigned int)AW88261_MUTE_VOL);
34 real_value = DB_TO_REG_VAL(volume);
35
36 regmap_read(aw_dev->regmap, AW88261_SYSCTRL2_REG, ®_value);
37
38 real_value = (real_value | (reg_value & AW88261_VOL_START_MASK));
39
40 dev_dbg(aw_dev->dev, "value 0x%x , real_value:0x%x", value, real_value);
41
42 regmap_write(aw_dev->regmap, AW88261_SYSCTRL2_REG, real_value);
43}
44
45static void aw88261_dev_fade_in(struct aw_device *aw_dev)
46{
47 struct aw_volume_desc *desc = &aw_dev->volume_desc;
48 int fade_in_vol = desc->ctl_volume;
49 int fade_step = aw_dev->fade_step;
50 int i;
51
52 if (fade_step == 0 || aw_dev->fade_in_time == 0) {
53 aw88261_dev_set_volume(aw_dev, fade_in_vol);
54 return;
55 }
56
57 for (i = AW88261_MUTE_VOL; i >= fade_in_vol; i -= fade_step) {
58 aw88261_dev_set_volume(aw_dev, i);
59 usleep_range(aw_dev->fade_in_time,
60 aw_dev->fade_in_time + 10);
61 }
62
63 if (i != fade_in_vol)
64 aw88261_dev_set_volume(aw_dev, fade_in_vol);
65}
66
67static void aw88261_dev_fade_out(struct aw_device *aw_dev)
68{
69 struct aw_volume_desc *desc = &aw_dev->volume_desc;
70 int fade_step = aw_dev->fade_step;
71 int i;
72
73 if (fade_step == 0 || aw_dev->fade_out_time == 0) {
74 aw88261_dev_set_volume(aw_dev, AW88261_MUTE_VOL);
75 return;
76 }
77
78 for (i = desc->ctl_volume; i <= AW88261_MUTE_VOL; i += fade_step) {
79 aw88261_dev_set_volume(aw_dev, i);
80 usleep_range(aw_dev->fade_out_time, aw_dev->fade_out_time + 10);
81 }
82
83 if (i != AW88261_MUTE_VOL) {
84 aw88261_dev_set_volume(aw_dev, AW88261_MUTE_VOL);
85 usleep_range(aw_dev->fade_out_time, aw_dev->fade_out_time + 10);
86 }
87}
88
89static void aw88261_dev_i2s_tx_enable(struct aw_device *aw_dev, bool flag)
90{
91 if (flag)
92 regmap_update_bits(aw_dev->regmap, AW88261_I2SCFG1_REG,
93 ~AW88261_I2STXEN_MASK, AW88261_I2STXEN_ENABLE_VALUE);
94 else
95 regmap_update_bits(aw_dev->regmap, AW88261_I2SCFG1_REG,
96 ~AW88261_I2STXEN_MASK, AW88261_I2STXEN_DISABLE_VALUE);
97}
98
99static void aw88261_dev_pwd(struct aw_device *aw_dev, bool pwd)
100{
101 if (pwd)
102 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
103 ~AW88261_PWDN_MASK, AW88261_PWDN_POWER_DOWN_VALUE);
104 else
105 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
106 ~AW88261_PWDN_MASK, AW88261_PWDN_WORKING_VALUE);
107}
108
109static void aw88261_dev_amppd(struct aw_device *aw_dev, bool amppd)
110{
111 if (amppd)
112 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
113 ~AW88261_AMPPD_MASK, AW88261_AMPPD_POWER_DOWN_VALUE);
114 else
115 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
116 ~AW88261_AMPPD_MASK, AW88261_AMPPD_WORKING_VALUE);
117}
118
119static void aw88261_dev_mute(struct aw_device *aw_dev, bool is_mute)
120{
121 if (is_mute) {
122 aw88261_dev_fade_out(aw_dev);
123 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
124 ~AW88261_HMUTE_MASK, AW88261_HMUTE_ENABLE_VALUE);
125 } else {
126 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
127 ~AW88261_HMUTE_MASK, AW88261_HMUTE_DISABLE_VALUE);
128 aw88261_dev_fade_in(aw_dev);
129 }
130}
131
132static void aw88261_dev_clear_int_status(struct aw_device *aw_dev)
133{
134 unsigned int int_status;
135
136 /* read int status and clear */
137 regmap_read(aw_dev->regmap, AW88261_SYSINT_REG, &int_status);
138 /* make sure int status is clear */
139 regmap_read(aw_dev->regmap, AW88261_SYSINT_REG, &int_status);
140
141 dev_dbg(aw_dev->dev, "read interrupt reg = 0x%04x", int_status);
142}
143
144static int aw88261_dev_get_iis_status(struct aw_device *aw_dev)
145{
146 unsigned int reg_val;
147 int ret;
148
149 ret = regmap_read(aw_dev->regmap, AW88261_SYSST_REG, ®_val);
150 if (ret)
151 return ret;
152 if ((reg_val & AW88261_BIT_PLL_CHECK) != AW88261_BIT_PLL_CHECK) {
153 dev_err(aw_dev->dev, "check pll lock fail,reg_val:0x%04x", reg_val);
154 return -EINVAL;
155 }
156
157 return ret;
158}
159
160static int aw88261_dev_check_mode1_pll(struct aw_device *aw_dev)
161{
162 int ret, i;
163
164 for (i = 0; i < AW88261_DEV_SYSST_CHECK_MAX; i++) {
165 ret = aw88261_dev_get_iis_status(aw_dev);
166 if (ret) {
167 dev_err(aw_dev->dev, "mode1 iis signal check error");
168 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
169 } else {
170 return ret;
171 }
172 }
173
174 return -EPERM;
175}
176
177static int aw88261_dev_check_mode2_pll(struct aw_device *aw_dev)
178{
179 unsigned int reg_val;
180 int ret, i;
181
182 ret = regmap_read(aw_dev->regmap, AW88261_PLLCTRL1_REG, ®_val);
183 if (ret)
184 return ret;
185
186 reg_val &= (~AW88261_CCO_MUX_MASK);
187 if (reg_val == AW88261_CCO_MUX_DIVIDED_VALUE) {
188 dev_dbg(aw_dev->dev, "CCO_MUX is already divider");
189 return -EPERM;
190 }
191
192 /* change mode2 */
193 ret = regmap_update_bits(aw_dev->regmap, AW88261_PLLCTRL1_REG,
194 ~AW88261_CCO_MUX_MASK, AW88261_CCO_MUX_DIVIDED_VALUE);
195 if (ret)
196 return ret;
197
198 for (i = 0; i < AW88261_DEV_SYSST_CHECK_MAX; i++) {
199 ret = aw88261_dev_get_iis_status(aw_dev);
200 if (ret) {
201 dev_err(aw_dev->dev, "mode2 iis signal check error");
202 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
203 } else {
204 break;
205 }
206 }
207
208 /* change mode1 */
209 ret = regmap_update_bits(aw_dev->regmap, AW88261_PLLCTRL1_REG,
210 ~AW88261_CCO_MUX_MASK, AW88261_CCO_MUX_BYPASS_VALUE);
211 if (ret == 0) {
212 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
213 for (i = 0; i < AW88261_DEV_SYSST_CHECK_MAX; i++) {
214 ret = aw88261_dev_check_mode1_pll(aw_dev);
215 if (ret) {
216 dev_err(aw_dev->dev, "mode2 switch to mode1, iis signal check error");
217 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
218 } else {
219 break;
220 }
221 }
222 }
223
224 return ret;
225}
226
227static int aw88261_dev_check_syspll(struct aw_device *aw_dev)
228{
229 int ret;
230
231 ret = aw88261_dev_check_mode1_pll(aw_dev);
232 if (ret) {
233 dev_dbg(aw_dev->dev, "mode1 check iis failed try switch to mode2 check");
234 ret = aw88261_dev_check_mode2_pll(aw_dev);
235 if (ret) {
236 dev_err(aw_dev->dev, "mode2 check iis failed");
237 return ret;
238 }
239 }
240
241 return ret;
242}
243
244static int aw88261_dev_check_sysst(struct aw_device *aw_dev)
245{
246 unsigned int check_val;
247 unsigned int reg_val;
248 int ret, i;
249
250 for (i = 0; i < AW88261_DEV_SYSST_CHECK_MAX; i++) {
251 ret = regmap_read(aw_dev->regmap, AW88261_SYSST_REG, ®_val);
252 if (ret)
253 return ret;
254
255 check_val = reg_val & (~AW88261_BIT_SYSST_CHECK_MASK)
256 & AW88261_BIT_SYSST_CHECK;
257 if (check_val != AW88261_BIT_SYSST_CHECK) {
258 dev_err(aw_dev->dev, "check sysst fail, reg_val=0x%04x, check:0x%x",
259 reg_val, AW88261_BIT_SYSST_CHECK);
260 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
261 } else {
262 return 0;
263 }
264 }
265
266 return -EPERM;
267}
268
269static void aw88261_dev_uls_hmute(struct aw_device *aw_dev, bool uls_hmute)
270{
271 if (uls_hmute)
272 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
273 ~AW88261_ULS_HMUTE_MASK,
274 AW88261_ULS_HMUTE_ENABLE_VALUE);
275 else
276 regmap_update_bits(aw_dev->regmap, AW88261_SYSCTRL_REG,
277 ~AW88261_ULS_HMUTE_MASK,
278 AW88261_ULS_HMUTE_DISABLE_VALUE);
279}
280
281static void aw88261_reg_force_set(struct aw88261 *aw88261)
282{
283 if (aw88261->frcset_en == AW88261_FRCSET_ENABLE) {
284 /* set FORCE_PWM */
285 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL3_REG,
286 AW88261_FORCE_PWM_MASK, AW88261_FORCE_PWM_FORCEMINUS_PWM_VALUE);
287 /* set BOOST_OS_WIDTH */
288 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL5_REG,
289 AW88261_BST_OS_WIDTH_MASK, AW88261_BST_OS_WIDTH_50NS_VALUE);
290 /* set BURST_LOOPR */
291 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL6_REG,
292 AW88261_BST_LOOPR_MASK, AW88261_BST_LOOPR_340K_VALUE);
293 /* set RSQN_DLY */
294 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL7_REG,
295 AW88261_RSQN_DLY_MASK, AW88261_RSQN_DLY_35NS_VALUE);
296 /* set BURST_SSMODE */
297 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL8_REG,
298 AW88261_BURST_SSMODE_MASK, AW88261_BURST_SSMODE_FAST_VALUE);
299 /* set BST_BURST */
300 regmap_update_bits(aw88261->regmap, AW88261_BSTCTRL9_REG,
301 AW88261_BST_BURST_MASK, AW88261_BST_BURST_30MA_VALUE);
302 } else {
303 dev_dbg(aw88261->aw_pa->dev, "needn't set reg value");
304 }
305}
306
307static int aw88261_dev_get_icalk(struct aw_device *aw_dev, int16_t *icalk)
308{
309 u16 reg_icalk, reg_icalkl;
310 unsigned int reg_val;
311 int ret;
312
313 ret = regmap_read(aw_dev->regmap, AW88261_EFRH4_REG, ®_val);
314 if (ret)
315 return ret;
316
317 reg_icalk = reg_val & (~AW88261_EF_ISN_GESLP_H_MASK);
318
319 ret = regmap_read(aw_dev->regmap, AW88261_EFRL4_REG, ®_val);
320 if (ret)
321 return ret;
322
323 reg_icalkl = reg_val & (~AW88261_EF_ISN_GESLP_L_MASK);
324
325 reg_icalk = (reg_icalk >> AW88261_ICALK_SHIFT) & (reg_icalkl >> AW88261_ICALKL_SHIFT);
326
327 if (reg_icalk & (~AW88261_EF_ISN_GESLP_SIGN_MASK))
328 reg_icalk = reg_icalk | ~AW88261_EF_ISN_GESLP_NEG;
329
330 *icalk = (int16_t)reg_icalk;
331
332 return ret;
333}
334
335static int aw88261_dev_get_vcalk(struct aw_device *aw_dev, int16_t *vcalk)
336{
337 u16 reg_vcalk, reg_vcalkl;
338 unsigned int reg_val;
339 int ret;
340
341 ret = regmap_read(aw_dev->regmap, AW88261_EFRH3_REG, ®_val);
342 if (ret)
343 return ret;
344
345 reg_vcalk = (u16)reg_val & (~AW88261_EF_VSN_GESLP_H_MASK);
346
347 ret = regmap_read(aw_dev->regmap, AW88261_EFRL3_REG, ®_val);
348 if (ret)
349 return ret;
350
351 reg_vcalkl = (u16)reg_val & (~AW88261_EF_VSN_GESLP_L_MASK);
352
353 reg_vcalk = (reg_vcalk >> AW88261_VCALK_SHIFT) & (reg_vcalkl >> AW88261_VCALKL_SHIFT);
354
355 if (reg_vcalk & AW88261_EF_VSN_GESLP_SIGN_MASK)
356 reg_vcalk = reg_vcalk | (~AW88261_EF_VSN_GESLP_NEG);
357 *vcalk = (int16_t)reg_vcalk;
358
359 return ret;
360}
361
362static int aw88261_dev_set_vcalb(struct aw_device *aw_dev)
363{
364 int16_t icalk_val, vcalk_val;
365 int icalk, vcalk, vcalb;
366 u32 reg_val;
367 int ret;
368
369 ret = aw88261_dev_get_icalk(aw_dev, &icalk_val);
370 if (ret)
371 return ret;
372
373 ret = aw88261_dev_get_vcalk(aw_dev, &vcalk_val);
374 if (ret)
375 return ret;
376
377 icalk = AW88261_CABL_BASE_VALUE + AW88261_ICABLK_FACTOR * icalk_val;
378 vcalk = AW88261_CABL_BASE_VALUE + AW88261_VCABLK_FACTOR * vcalk_val;
379 if (!vcalk)
380 return -EINVAL;
381
382 vcalb = AW88261_VCAL_FACTOR * icalk / vcalk;
383 reg_val = (unsigned int)vcalb;
384
385 dev_dbg(aw_dev->dev, "icalk=%d, vcalk=%d, vcalb=%d, reg_val=0x%04x",
386 icalk, vcalk, vcalb, reg_val);
387 ret = regmap_write(aw_dev->regmap, AW88261_VSNTM1_REG, reg_val);
388
389 return ret;
390}
391
392static int aw88261_dev_reg_update(struct aw88261 *aw88261,
393 unsigned char *data, unsigned int len)
394{
395 struct aw_device *aw_dev = aw88261->aw_pa;
396 struct aw_volume_desc *vol_desc = &aw_dev->volume_desc;
397 unsigned int read_val, efcheck_val, read_vol;
398 int data_len, i, ret;
399 int16_t *reg_data;
400 u16 reg_val;
401 u8 reg_addr;
402
403 if (!len || !data) {
404 dev_err(aw_dev->dev, "reg data is null or len is 0");
405 return -EINVAL;
406 }
407
408 reg_data = (int16_t *)data;
409 data_len = len >> 1;
410
411 if (data_len & 0x1) {
412 dev_err(aw_dev->dev, "data len:%d unsupported", data_len);
413 return -EINVAL;
414 }
415
416 for (i = 0; i < data_len; i += 2) {
417 reg_addr = reg_data[i];
418 reg_val = reg_data[i + 1];
419
420 if (reg_addr == AW88261_SYSCTRL_REG) {
421 aw88261->amppd_st = reg_val & (~AW88261_AMPPD_MASK);
422 ret = regmap_read(aw_dev->regmap, reg_addr, &read_val);
423 if (ret)
424 break;
425
426 read_val &= (~AW88261_AMPPD_MASK) | (~AW88261_PWDN_MASK) |
427 (~AW88261_HMUTE_MASK);
428 reg_val &= (AW88261_AMPPD_MASK | AW88261_PWDN_MASK | AW88261_HMUTE_MASK);
429 reg_val |= read_val;
430
431 /* enable uls hmute */
432 reg_val &= AW88261_ULS_HMUTE_MASK;
433 reg_val |= AW88261_ULS_HMUTE_ENABLE_VALUE;
434 }
435
436 if (reg_addr == AW88261_DBGCTRL_REG) {
437 efcheck_val = reg_val & (~AW88261_EF_DBMD_MASK);
438 if (efcheck_val == AW88261_OR_VALUE)
439 aw88261->efuse_check = AW88261_EF_OR_CHECK;
440 else
441 aw88261->efuse_check = AW88261_EF_AND_CHECK;
442 }
443
444 /* i2stxen */
445 if (reg_addr == AW88261_I2SCTRL3_REG) {
446 /* close tx */
447 reg_val &= AW88261_I2STXEN_MASK;
448 reg_val |= AW88261_I2STXEN_DISABLE_VALUE;
449 }
450
451 if (reg_addr == AW88261_SYSCTRL2_REG) {
452 read_vol = (reg_val & (~AW88261_VOL_MASK)) >>
453 AW88261_VOL_START_BIT;
454 aw_dev->volume_desc.init_volume =
455 REG_VAL_TO_DB(read_vol);
456 }
457
458 if (reg_addr == AW88261_VSNTM1_REG)
459 continue;
460
461 ret = regmap_write(aw_dev->regmap, reg_addr, reg_val);
462 if (ret)
463 break;
464 }
465
466 ret = aw88261_dev_set_vcalb(aw_dev);
467 if (ret)
468 return ret;
469
470 if (aw_dev->prof_cur != aw_dev->prof_index)
471 vol_desc->ctl_volume = 0;
472
473 /* keep min volume */
474 aw88261_dev_set_volume(aw_dev, vol_desc->mute_volume);
475
476 return ret;
477}
478
479static int aw88261_dev_get_prof_name(struct aw_device *aw_dev, int index, char **prof_name)
480{
481 struct aw_prof_info *prof_info = &aw_dev->prof_info;
482 struct aw_prof_desc *prof_desc;
483
484 if ((index >= aw_dev->prof_info.count) || (index < 0)) {
485 dev_err(aw_dev->dev, "index[%d] overflow count[%d]",
486 index, aw_dev->prof_info.count);
487 return -EINVAL;
488 }
489
490 prof_desc = &aw_dev->prof_info.prof_desc[index];
491
492 *prof_name = prof_info->prof_name_list[prof_desc->id];
493
494 return 0;
495}
496
497static int aw88261_dev_get_prof_data(struct aw_device *aw_dev, int index,
498 struct aw_prof_desc **prof_desc)
499{
500 if ((index >= aw_dev->prof_info.count) || (index < 0)) {
501 dev_err(aw_dev->dev, "%s: index[%d] overflow count[%d]\n",
502 __func__, index, aw_dev->prof_info.count);
503 return -EINVAL;
504 }
505
506 *prof_desc = &aw_dev->prof_info.prof_desc[index];
507
508 return 0;
509}
510
511static int aw88261_dev_fw_update(struct aw88261 *aw88261)
512{
513 struct aw_device *aw_dev = aw88261->aw_pa;
514 struct aw_prof_desc *prof_index_desc;
515 struct aw_sec_data_desc *sec_desc;
516 char *prof_name;
517 int ret;
518
519 ret = aw88261_dev_get_prof_name(aw_dev, aw_dev->prof_index, &prof_name);
520 if (ret) {
521 dev_err(aw_dev->dev, "get prof name failed");
522 return -EINVAL;
523 }
524
525 dev_dbg(aw_dev->dev, "start update %s", prof_name);
526
527 ret = aw88261_dev_get_prof_data(aw_dev, aw_dev->prof_index, &prof_index_desc);
528 if (ret)
529 return ret;
530
531 /* update reg */
532 sec_desc = prof_index_desc->sec_desc;
533 ret = aw88261_dev_reg_update(aw88261, sec_desc[AW88395_DATA_TYPE_REG].data,
534 sec_desc[AW88395_DATA_TYPE_REG].len);
535 if (ret) {
536 dev_err(aw_dev->dev, "update reg failed");
537 return ret;
538 }
539
540 aw_dev->prof_cur = aw_dev->prof_index;
541
542 return ret;
543}
544
545static int aw88261_dev_start(struct aw88261 *aw88261)
546{
547 struct aw_device *aw_dev = aw88261->aw_pa;
548 int ret;
549
550 if (aw_dev->status == AW88261_DEV_PW_ON) {
551 dev_info(aw_dev->dev, "already power on");
552 return 0;
553 }
554
555 /* power on */
556 aw88261_dev_pwd(aw_dev, false);
557 usleep_range(AW88261_2000_US, AW88261_2000_US + 10);
558
559 ret = aw88261_dev_check_syspll(aw_dev);
560 if (ret) {
561 dev_err(aw_dev->dev, "pll check failed cannot start");
562 goto pll_check_fail;
563 }
564
565 /* amppd on */
566 aw88261_dev_amppd(aw_dev, false);
567 usleep_range(AW88261_1000_US, AW88261_1000_US + 50);
568
569 /* check i2s status */
570 ret = aw88261_dev_check_sysst(aw_dev);
571 if (ret) {
572 dev_err(aw_dev->dev, "sysst check failed");
573 goto sysst_check_fail;
574 }
575
576 /* enable tx feedback */
577 aw88261_dev_i2s_tx_enable(aw_dev, true);
578
579 if (aw88261->amppd_st)
580 aw88261_dev_amppd(aw_dev, true);
581
582 aw88261_reg_force_set(aw88261);
583
584 /* close uls mute */
585 aw88261_dev_uls_hmute(aw_dev, false);
586
587 /* close mute */
588 if (!aw88261->mute_st)
589 aw88261_dev_mute(aw_dev, false);
590
591 /* clear inturrupt */
592 aw88261_dev_clear_int_status(aw_dev);
593 aw_dev->status = AW88261_DEV_PW_ON;
594
595 return 0;
596
597sysst_check_fail:
598 aw88261_dev_i2s_tx_enable(aw_dev, false);
599 aw88261_dev_clear_int_status(aw_dev);
600 aw88261_dev_amppd(aw_dev, true);
601pll_check_fail:
602 aw88261_dev_pwd(aw_dev, true);
603 aw_dev->status = AW88261_DEV_PW_OFF;
604
605 return ret;
606}
607
608static int aw88261_dev_stop(struct aw_device *aw_dev)
609{
610 if (aw_dev->status == AW88261_DEV_PW_OFF) {
611 dev_info(aw_dev->dev, "already power off");
612 return 0;
613 }
614
615 aw_dev->status = AW88261_DEV_PW_OFF;
616
617 /* clear inturrupt */
618 aw88261_dev_clear_int_status(aw_dev);
619
620 aw88261_dev_uls_hmute(aw_dev, true);
621 /* set mute */
622 aw88261_dev_mute(aw_dev, true);
623
624 /* close tx feedback */
625 aw88261_dev_i2s_tx_enable(aw_dev, false);
626 usleep_range(AW88261_1000_US, AW88261_1000_US + 100);
627
628 /* enable amppd */
629 aw88261_dev_amppd(aw_dev, true);
630
631 /* set power down */
632 aw88261_dev_pwd(aw_dev, true);
633
634 return 0;
635}
636
637static int aw88261_reg_update(struct aw88261 *aw88261, bool force)
638{
639 struct aw_device *aw_dev = aw88261->aw_pa;
640 int ret;
641
642 if (force) {
643 ret = regmap_write(aw_dev->regmap,
644 AW88261_ID_REG, AW88261_SOFT_RESET_VALUE);
645 if (ret)
646 return ret;
647
648 ret = aw88261_dev_fw_update(aw88261);
649 if (ret)
650 return ret;
651 } else {
652 if (aw_dev->prof_cur != aw_dev->prof_index) {
653 ret = aw88261_dev_fw_update(aw88261);
654 if (ret)
655 return ret;
656 } else {
657 ret = 0;
658 }
659 }
660
661 aw_dev->prof_cur = aw_dev->prof_index;
662
663 return ret;
664}
665
666static void aw88261_start_pa(struct aw88261 *aw88261)
667{
668 int ret, i;
669
670 for (i = 0; i < AW88261_START_RETRIES; i++) {
671 ret = aw88261_reg_update(aw88261, aw88261->phase_sync);
672 if (ret) {
673 dev_err(aw88261->aw_pa->dev, "fw update failed, cnt:%d\n", i);
674 continue;
675 }
676 ret = aw88261_dev_start(aw88261);
677 if (ret) {
678 dev_err(aw88261->aw_pa->dev, "aw88261 device start failed. retry = %d", i);
679 continue;
680 } else {
681 dev_info(aw88261->aw_pa->dev, "start success\n");
682 break;
683 }
684 }
685}
686
687static void aw88261_startup_work(struct work_struct *work)
688{
689 struct aw88261 *aw88261 =
690 container_of(work, struct aw88261, start_work.work);
691
692 mutex_lock(&aw88261->lock);
693 aw88261_start_pa(aw88261);
694 mutex_unlock(&aw88261->lock);
695}
696
697static void aw88261_start(struct aw88261 *aw88261, bool sync_start)
698{
699 if (aw88261->aw_pa->fw_status != AW88261_DEV_FW_OK)
700 return;
701
702 if (aw88261->aw_pa->status == AW88261_DEV_PW_ON)
703 return;
704
705 if (sync_start == AW88261_SYNC_START)
706 aw88261_start_pa(aw88261);
707 else
708 queue_delayed_work(system_wq,
709 &aw88261->start_work,
710 AW88261_START_WORK_DELAY_MS);
711}
712
713static struct snd_soc_dai_driver aw88261_dai[] = {
714 {
715 .name = "aw88261-aif",
716 .id = 1,
717 .playback = {
718 .stream_name = "Speaker_Playback",
719 .channels_min = 1,
720 .channels_max = 2,
721 .rates = AW88261_RATES,
722 .formats = AW88261_FORMATS,
723 },
724 .capture = {
725 .stream_name = "Speaker_Capture",
726 .channels_min = 1,
727 .channels_max = 2,
728 .rates = AW88261_RATES,
729 .formats = AW88261_FORMATS,
730 },
731 },
732};
733
734static int aw88261_get_fade_in_time(struct snd_kcontrol *kcontrol,
735 struct snd_ctl_elem_value *ucontrol)
736{
737 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
738 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
739 struct aw_device *aw_dev = aw88261->aw_pa;
740
741 ucontrol->value.integer.value[0] = aw_dev->fade_in_time;
742
743 return 0;
744}
745
746static int aw88261_set_fade_in_time(struct snd_kcontrol *kcontrol,
747 struct snd_ctl_elem_value *ucontrol)
748{
749 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
750 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
751 struct soc_mixer_control *mc =
752 (struct soc_mixer_control *)kcontrol->private_value;
753 struct aw_device *aw_dev = aw88261->aw_pa;
754 int time;
755
756 time = ucontrol->value.integer.value[0];
757
758 if (time < mc->min || time > mc->max)
759 return -EINVAL;
760
761 if (time != aw_dev->fade_in_time) {
762 aw_dev->fade_in_time = time;
763 return 1;
764 }
765
766 return 0;
767}
768
769static int aw88261_get_fade_out_time(struct snd_kcontrol *kcontrol,
770 struct snd_ctl_elem_value *ucontrol)
771{
772 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
773 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
774 struct aw_device *aw_dev = aw88261->aw_pa;
775
776 ucontrol->value.integer.value[0] = aw_dev->fade_out_time;
777
778 return 0;
779}
780
781static int aw88261_set_fade_out_time(struct snd_kcontrol *kcontrol,
782 struct snd_ctl_elem_value *ucontrol)
783{
784 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
785 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
786 struct soc_mixer_control *mc =
787 (struct soc_mixer_control *)kcontrol->private_value;
788 struct aw_device *aw_dev = aw88261->aw_pa;
789 int time;
790
791 time = ucontrol->value.integer.value[0];
792 if (time < mc->min || time > mc->max)
793 return -EINVAL;
794
795 if (time != aw_dev->fade_out_time) {
796 aw_dev->fade_out_time = time;
797 return 1;
798 }
799
800 return 0;
801}
802
803static int aw88261_dev_set_profile_index(struct aw_device *aw_dev, int index)
804{
805 /* check the index whether is valid */
806 if ((index >= aw_dev->prof_info.count) || (index < 0))
807 return -EINVAL;
808 /* check the index whether change */
809 if (aw_dev->prof_index == index)
810 return -EPERM;
811
812 aw_dev->prof_index = index;
813
814 return 0;
815}
816
817static int aw88261_profile_info(struct snd_kcontrol *kcontrol,
818 struct snd_ctl_elem_info *uinfo)
819{
820 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
821 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
822 char *prof_name, *name;
823 int count, ret;
824
825 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
826 uinfo->count = 1;
827
828 count = aw88261->aw_pa->prof_info.count;
829 if (count <= 0) {
830 uinfo->value.enumerated.items = 0;
831 return 0;
832 }
833
834 uinfo->value.enumerated.items = count;
835
836 if (uinfo->value.enumerated.item >= count)
837 uinfo->value.enumerated.item = count - 1;
838
839 name = uinfo->value.enumerated.name;
840 count = uinfo->value.enumerated.item;
841
842 ret = aw88261_dev_get_prof_name(aw88261->aw_pa, count, &prof_name);
843 if (ret) {
844 strscpy(uinfo->value.enumerated.name, "null",
845 strlen("null") + 1);
846 return 0;
847 }
848
849 strscpy(name, prof_name, sizeof(uinfo->value.enumerated.name));
850
851 return 0;
852}
853
854static int aw88261_profile_get(struct snd_kcontrol *kcontrol,
855 struct snd_ctl_elem_value *ucontrol)
856{
857 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
858 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
859
860 ucontrol->value.integer.value[0] = aw88261->aw_pa->prof_index;
861
862 return 0;
863}
864
865static int aw88261_profile_set(struct snd_kcontrol *kcontrol,
866 struct snd_ctl_elem_value *ucontrol)
867{
868 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
869 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
870 int ret;
871
872 /* pa stop or stopping just set profile */
873 mutex_lock(&aw88261->lock);
874 ret = aw88261_dev_set_profile_index(aw88261->aw_pa, ucontrol->value.integer.value[0]);
875 if (ret) {
876 dev_dbg(codec->dev, "profile index does not change");
877 mutex_unlock(&aw88261->lock);
878 return 0;
879 }
880
881 if (aw88261->aw_pa->status) {
882 aw88261_dev_stop(aw88261->aw_pa);
883 aw88261_start(aw88261, AW88261_SYNC_START);
884 }
885
886 mutex_unlock(&aw88261->lock);
887
888 return 1;
889}
890
891static int aw88261_volume_get(struct snd_kcontrol *kcontrol,
892 struct snd_ctl_elem_value *ucontrol)
893{
894 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
895 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
896 struct aw_volume_desc *vol_desc = &aw88261->aw_pa->volume_desc;
897
898 ucontrol->value.integer.value[0] = vol_desc->ctl_volume;
899
900 return 0;
901}
902
903static int aw88261_volume_set(struct snd_kcontrol *kcontrol,
904 struct snd_ctl_elem_value *ucontrol)
905{
906 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
907 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
908 struct aw_volume_desc *vol_desc = &aw88261->aw_pa->volume_desc;
909 struct soc_mixer_control *mc =
910 (struct soc_mixer_control *)kcontrol->private_value;
911 int value;
912
913 value = ucontrol->value.integer.value[0];
914
915 if (value < mc->min || value > mc->max)
916 return -EINVAL;
917
918 if (vol_desc->ctl_volume != value) {
919 vol_desc->ctl_volume = value;
920 aw88261_dev_set_volume(aw88261->aw_pa, vol_desc->ctl_volume);
921
922 return 1;
923 }
924
925 return 0;
926}
927
928static int aw88261_get_fade_step(struct snd_kcontrol *kcontrol,
929 struct snd_ctl_elem_value *ucontrol)
930{
931 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
932 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
933
934 ucontrol->value.integer.value[0] = aw88261->aw_pa->fade_step;
935
936 return 0;
937}
938
939static int aw88261_set_fade_step(struct snd_kcontrol *kcontrol,
940 struct snd_ctl_elem_value *ucontrol)
941{
942 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
943 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec);
944 struct soc_mixer_control *mc =
945 (struct soc_mixer_control *)kcontrol->private_value;
946 int value;
947
948 value = ucontrol->value.integer.value[0];
949 if (value < mc->min || value > mc->max)
950 return -EINVAL;
951
952 if (aw88261->aw_pa->fade_step != value) {
953 aw88261->aw_pa->fade_step = value;
954 return 1;
955 }
956
957 return 0;
958}
959
960static const struct snd_kcontrol_new aw88261_controls[] = {
961 SOC_SINGLE_EXT("PCM Playback Volume", AW88261_SYSCTRL2_REG,
962 6, AW88261_MUTE_VOL, 0, aw88261_volume_get,
963 aw88261_volume_set),
964 SOC_SINGLE_EXT("Fade Step", 0, 0, AW88261_MUTE_VOL, 0,
965 aw88261_get_fade_step, aw88261_set_fade_step),
966 SOC_SINGLE_EXT("Volume Ramp Up Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN,
967 aw88261_get_fade_in_time, aw88261_set_fade_in_time),
968 SOC_SINGLE_EXT("Volume Ramp Down Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN,
969 aw88261_get_fade_out_time, aw88261_set_fade_out_time),
970 AW88261_PROFILE_EXT("Profile Set", aw88261_profile_info,
971 aw88261_profile_get, aw88261_profile_set),
972};
973
974static int aw88261_playback_event(struct snd_soc_dapm_widget *w,
975 struct snd_kcontrol *k, int event)
976{
977 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
978 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
979
980 mutex_lock(&aw88261->lock);
981 switch (event) {
982 case SND_SOC_DAPM_PRE_PMU:
983 aw88261_start(aw88261, AW88261_ASYNC_START);
984 break;
985 case SND_SOC_DAPM_POST_PMD:
986 aw88261_dev_stop(aw88261->aw_pa);
987 break;
988 default:
989 break;
990 }
991 mutex_unlock(&aw88261->lock);
992
993 return 0;
994}
995
996static const struct snd_soc_dapm_widget aw88261_dapm_widgets[] = {
997 /* playback */
998 SND_SOC_DAPM_AIF_IN_E("AIF_RX", "Speaker_Playback", 0, 0, 0, 0,
999 aw88261_playback_event,
1000 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
1001 SND_SOC_DAPM_OUTPUT("DAC Output"),
1002
1003 /* capture */
1004 SND_SOC_DAPM_AIF_OUT("AIF_TX", "Speaker_Capture", 0, SND_SOC_NOPM, 0, 0),
1005 SND_SOC_DAPM_INPUT("ADC Input"),
1006};
1007
1008static const struct snd_soc_dapm_route aw88261_audio_map[] = {
1009 {"DAC Output", NULL, "AIF_RX"},
1010 {"AIF_TX", NULL, "ADC Input"},
1011};
1012
1013static int aw88261_frcset_check(struct aw88261 *aw88261)
1014{
1015 unsigned int reg_val;
1016 u16 temh, teml, tem;
1017 int ret;
1018
1019 ret = regmap_read(aw88261->regmap, AW88261_EFRH3_REG, ®_val);
1020 if (ret)
1021 return ret;
1022 temh = ((u16)reg_val & (~AW88261_TEMH_MASK));
1023
1024 ret = regmap_read(aw88261->regmap, AW88261_EFRL3_REG, ®_val);
1025 if (ret)
1026 return ret;
1027 teml = ((u16)reg_val & (~AW88261_TEML_MASK));
1028
1029 if (aw88261->efuse_check == AW88261_EF_OR_CHECK)
1030 tem = (temh | teml);
1031 else
1032 tem = (temh & teml);
1033
1034 if (tem == AW88261_DEFAULT_CFG)
1035 aw88261->frcset_en = AW88261_FRCSET_ENABLE;
1036 else
1037 aw88261->frcset_en = AW88261_FRCSET_DISABLE;
1038
1039 dev_dbg(aw88261->aw_pa->dev, "tem is 0x%04x, frcset_en is %d",
1040 tem, aw88261->frcset_en);
1041
1042 return ret;
1043}
1044
1045static int aw88261_dev_init(struct aw88261 *aw88261, struct aw_container *aw_cfg)
1046{
1047 struct aw_device *aw_dev = aw88261->aw_pa;
1048 int ret;
1049
1050 ret = aw88395_dev_cfg_load(aw_dev, aw_cfg);
1051 if (ret) {
1052 dev_err(aw_dev->dev, "aw_dev acf parse failed");
1053 return -EINVAL;
1054 }
1055
1056 ret = regmap_write(aw_dev->regmap, AW88261_ID_REG, AW88261_SOFT_RESET_VALUE);
1057 if (ret)
1058 return ret;
1059
1060 aw_dev->fade_in_time = AW88261_500_US;
1061 aw_dev->fade_out_time = AW88261_500_US;
1062 aw_dev->prof_cur = AW88261_INIT_PROFILE;
1063 aw_dev->prof_index = AW88261_INIT_PROFILE;
1064
1065 ret = aw88261_dev_fw_update(aw88261);
1066 if (ret) {
1067 dev_err(aw_dev->dev, "fw update failed ret = %d\n", ret);
1068 return ret;
1069 }
1070
1071 ret = aw88261_frcset_check(aw88261);
1072 if (ret) {
1073 dev_err(aw_dev->dev, "aw88261_frcset_check ret = %d\n", ret);
1074 return ret;
1075 }
1076
1077 aw88261_dev_clear_int_status(aw_dev);
1078
1079 aw88261_dev_uls_hmute(aw_dev, true);
1080
1081 aw88261_dev_mute(aw_dev, true);
1082
1083 aw88261_dev_i2s_tx_enable(aw_dev, false);
1084
1085 usleep_range(AW88261_1000_US, AW88261_1000_US + 100);
1086
1087 aw88261_dev_amppd(aw_dev, true);
1088
1089 aw88261_dev_pwd(aw_dev, true);
1090
1091 return 0;
1092}
1093
1094static int aw88261_request_firmware_file(struct aw88261 *aw88261)
1095{
1096 const struct firmware *cont = NULL;
1097 int ret;
1098
1099 aw88261->aw_pa->fw_status = AW88261_DEV_FW_FAILED;
1100
1101 ret = request_firmware(&cont, AW88261_ACF_FILE, aw88261->aw_pa->dev);
1102 if (ret)
1103 return dev_err_probe(aw88261->aw_pa->dev, ret,
1104 "load [%s] failed!", AW88261_ACF_FILE);
1105
1106 dev_info(aw88261->aw_pa->dev, "loaded %s - size: %zu\n",
1107 AW88261_ACF_FILE, cont ? cont->size : 0);
1108
1109 aw88261->aw_cfg = devm_kzalloc(aw88261->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL);
1110 if (!aw88261->aw_cfg) {
1111 release_firmware(cont);
1112 return -ENOMEM;
1113 }
1114 aw88261->aw_cfg->len = (int)cont->size;
1115 memcpy(aw88261->aw_cfg->data, cont->data, cont->size);
1116 release_firmware(cont);
1117
1118 ret = aw88395_dev_load_acf_check(aw88261->aw_pa, aw88261->aw_cfg);
1119 if (ret) {
1120 dev_err(aw88261->aw_pa->dev, "load [%s] failed !", AW88261_ACF_FILE);
1121 return ret;
1122 }
1123
1124 mutex_lock(&aw88261->lock);
1125 /* aw device init */
1126 ret = aw88261_dev_init(aw88261, aw88261->aw_cfg);
1127 if (ret)
1128 dev_err(aw88261->aw_pa->dev, "dev init failed");
1129 mutex_unlock(&aw88261->lock);
1130
1131 return ret;
1132}
1133
1134static int aw88261_codec_probe(struct snd_soc_component *component)
1135{
1136 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
1137 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
1138 int ret;
1139
1140 INIT_DELAYED_WORK(&aw88261->start_work, aw88261_startup_work);
1141
1142 ret = aw88261_request_firmware_file(aw88261);
1143 if (ret)
1144 return dev_err_probe(aw88261->aw_pa->dev, ret,
1145 "aw88261_request_firmware_file failed\n");
1146
1147 /* add widgets */
1148 ret = snd_soc_dapm_new_controls(dapm, aw88261_dapm_widgets,
1149 ARRAY_SIZE(aw88261_dapm_widgets));
1150 if (ret)
1151 return ret;
1152
1153 /* add route */
1154 ret = snd_soc_dapm_add_routes(dapm, aw88261_audio_map,
1155 ARRAY_SIZE(aw88261_audio_map));
1156 if (ret)
1157 return ret;
1158
1159 ret = snd_soc_add_component_controls(component, aw88261_controls,
1160 ARRAY_SIZE(aw88261_controls));
1161
1162 return ret;
1163}
1164
1165static void aw88261_codec_remove(struct snd_soc_component *aw_codec)
1166{
1167 struct aw88261 *aw88261 = snd_soc_component_get_drvdata(aw_codec);
1168
1169 cancel_delayed_work_sync(&aw88261->start_work);
1170}
1171
1172static const struct snd_soc_component_driver soc_codec_dev_aw88261 = {
1173 .probe = aw88261_codec_probe,
1174 .remove = aw88261_codec_remove,
1175};
1176
1177static void aw88261_parse_channel_dt(struct aw88261 *aw88261)
1178{
1179 struct aw_device *aw_dev = aw88261->aw_pa;
1180 struct device_node *np = aw_dev->dev->of_node;
1181 u32 channel_value = AW88261_DEV_DEFAULT_CH;
1182
1183 of_property_read_u32(np, "awinic,audio-channel", &channel_value);
1184 aw88261->phase_sync = of_property_read_bool(np, "awinic,sync-flag");
1185
1186 aw_dev->channel = channel_value;
1187}
1188
1189static int aw88261_init(struct aw88261 **aw88261, struct i2c_client *i2c, struct regmap *regmap)
1190{
1191 struct aw_device *aw_dev;
1192 unsigned int chip_id;
1193 int ret;
1194
1195 /* read chip id */
1196 ret = regmap_read(regmap, AW88261_ID_REG, &chip_id);
1197 if (ret) {
1198 dev_err(&i2c->dev, "%s read chipid error. ret = %d", __func__, ret);
1199 return ret;
1200 }
1201 if (chip_id != AW88261_CHIP_ID) {
1202 dev_err(&i2c->dev, "unsupported device");
1203 return -ENXIO;
1204 }
1205
1206 dev_info(&i2c->dev, "chip id = %x\n", chip_id);
1207
1208 aw_dev = devm_kzalloc(&i2c->dev, sizeof(*aw_dev), GFP_KERNEL);
1209 if (!aw_dev)
1210 return -ENOMEM;
1211
1212 (*aw88261)->aw_pa = aw_dev;
1213 aw_dev->i2c = i2c;
1214 aw_dev->regmap = regmap;
1215 aw_dev->dev = &i2c->dev;
1216 aw_dev->chip_id = AW88261_CHIP_ID;
1217 aw_dev->acf = NULL;
1218 aw_dev->prof_info.prof_desc = NULL;
1219 aw_dev->prof_info.count = 0;
1220 aw_dev->prof_info.prof_type = AW88395_DEV_NONE_TYPE_ID;
1221 aw_dev->channel = 0;
1222 aw_dev->fw_status = AW88261_DEV_FW_FAILED;
1223 aw_dev->fade_step = AW88261_VOLUME_STEP_DB;
1224 aw_dev->volume_desc.ctl_volume = AW88261_VOL_DEFAULT_VALUE;
1225 aw_dev->volume_desc.mute_volume = AW88261_MUTE_VOL;
1226 aw88261_parse_channel_dt(*aw88261);
1227
1228 return ret;
1229}
1230
1231static int aw88261_i2c_probe(struct i2c_client *i2c)
1232{
1233 struct aw88261 *aw88261;
1234 int ret;
1235
1236 ret = i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C);
1237 if (!ret)
1238 return dev_err_probe(&i2c->dev, -ENXIO, "check_functionality failed");
1239
1240 aw88261 = devm_kzalloc(&i2c->dev, sizeof(*aw88261), GFP_KERNEL);
1241 if (!aw88261)
1242 return -ENOMEM;
1243
1244 mutex_init(&aw88261->lock);
1245
1246 i2c_set_clientdata(i2c, aw88261);
1247
1248 aw88261->regmap = devm_regmap_init_i2c(i2c, &aw88261_remap_config);
1249 if (IS_ERR(aw88261->regmap)) {
1250 ret = PTR_ERR(aw88261->regmap);
1251 return dev_err_probe(&i2c->dev, ret, "failed to init regmap: %d\n", ret);
1252 }
1253
1254 /* aw pa init */
1255 ret = aw88261_init(&aw88261, i2c, aw88261->regmap);
1256 if (ret)
1257 return ret;
1258
1259 ret = devm_snd_soc_register_component(&i2c->dev,
1260 &soc_codec_dev_aw88261,
1261 aw88261_dai, ARRAY_SIZE(aw88261_dai));
1262 if (ret)
1263 dev_err(&i2c->dev, "failed to register aw88261: %d", ret);
1264
1265 return ret;
1266}
1267
1268static const struct i2c_device_id aw88261_i2c_id[] = {
1269 { AW88261_I2C_NAME },
1270 { }
1271};
1272MODULE_DEVICE_TABLE(i2c, aw88261_i2c_id);
1273
1274static struct i2c_driver aw88261_i2c_driver = {
1275 .driver = {
1276 .name = AW88261_I2C_NAME,
1277 },
1278 .probe = aw88261_i2c_probe,
1279 .id_table = aw88261_i2c_id,
1280};
1281module_i2c_driver(aw88261_i2c_driver);
1282
1283MODULE_DESCRIPTION("ASoC AW88261 Smart PA Driver");
1284MODULE_LICENSE("GPL v2");