xref: /openbmc/linux/sound/soc/codecs/rt1015.c (revision 70a59dd8)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // rt1015.c  --  RT1015 ALSA SoC audio amplifier driver
4 //
5 // Copyright 2019 Realtek Semiconductor Corp.
6 //
7 // Author: Jack Yu <jack.yu@realtek.com>
8 //
9 //
10 
11 #include <linux/acpi.h>
12 #include <linux/delay.h>
13 #include <linux/firmware.h>
14 #include <linux/fs.h>
15 #include <linux/gpio.h>
16 #include <linux/i2c.h>
17 #include <linux/init.h>
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/platform_device.h>
21 #include <linux/pm.h>
22 #include <linux/regmap.h>
23 #include <sound/core.h>
24 #include <sound/initval.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/soc.h>
29 #include <sound/tlv.h>
30 
31 #include "rl6231.h"
32 #include "rt1015.h"
33 
34 static const struct reg_default rt1015_reg[] = {
35 	{ 0x0000, 0x0000 },
36 	{ 0x0004, 0xa000 },
37 	{ 0x0006, 0x0003 },
38 	{ 0x000a, 0x081e },
39 	{ 0x000c, 0x0006 },
40 	{ 0x000e, 0x0000 },
41 	{ 0x0010, 0x0000 },
42 	{ 0x0012, 0x0000 },
43 	{ 0x0014, 0x0000 },
44 	{ 0x0016, 0x0000 },
45 	{ 0x0018, 0x0000 },
46 	{ 0x0020, 0x8000 },
47 	{ 0x0022, 0x8043 },
48 	{ 0x0076, 0x0000 },
49 	{ 0x0078, 0x0000 },
50 	{ 0x007a, 0x0002 },
51 	{ 0x007c, 0x10ec },
52 	{ 0x007d, 0x1015 },
53 	{ 0x00f0, 0x5000 },
54 	{ 0x00f2, 0x004c },
55 	{ 0x00f3, 0xecfe },
56 	{ 0x00f4, 0x0000 },
57 	{ 0x00f6, 0x0400 },
58 	{ 0x0100, 0x0028 },
59 	{ 0x0102, 0xff02 },
60 	{ 0x0104, 0xa213 },
61 	{ 0x0106, 0x200c },
62 	{ 0x010c, 0x0000 },
63 	{ 0x010e, 0x0058 },
64 	{ 0x0111, 0x0200 },
65 	{ 0x0112, 0x0400 },
66 	{ 0x0114, 0x0022 },
67 	{ 0x0116, 0x0000 },
68 	{ 0x0118, 0x0000 },
69 	{ 0x011a, 0x0123 },
70 	{ 0x011c, 0x4567 },
71 	{ 0x0300, 0x203d },
72 	{ 0x0302, 0x001e },
73 	{ 0x0311, 0x0000 },
74 	{ 0x0313, 0x6014 },
75 	{ 0x0314, 0x00a2 },
76 	{ 0x031a, 0x00a0 },
77 	{ 0x031c, 0x001f },
78 	{ 0x031d, 0xffff },
79 	{ 0x031e, 0x0000 },
80 	{ 0x031f, 0x0000 },
81 	{ 0x0320, 0x0000 },
82 	{ 0x0321, 0x0000 },
83 	{ 0x0322, 0xd7df },
84 	{ 0x0328, 0x10b2 },
85 	{ 0x0329, 0x0175 },
86 	{ 0x032a, 0x36ad },
87 	{ 0x032b, 0x7e55 },
88 	{ 0x032c, 0x0520 },
89 	{ 0x032d, 0xaa00 },
90 	{ 0x032e, 0x570e },
91 	{ 0x0330, 0xe180 },
92 	{ 0x0332, 0x0034 },
93 	{ 0x0334, 0x0001 },
94 	{ 0x0336, 0x0010 },
95 	{ 0x0338, 0x0000 },
96 	{ 0x04fa, 0x0030 },
97 	{ 0x04fc, 0x35c8 },
98 	{ 0x04fe, 0x0800 },
99 	{ 0x0500, 0x0400 },
100 	{ 0x0502, 0x1000 },
101 	{ 0x0504, 0x0000 },
102 	{ 0x0506, 0x04ff },
103 	{ 0x0508, 0x0010 },
104 	{ 0x050a, 0x001a },
105 	{ 0x0519, 0x1c68 },
106 	{ 0x051a, 0x0ccc },
107 	{ 0x051b, 0x0666 },
108 	{ 0x051d, 0x0000 },
109 	{ 0x051f, 0x0000 },
110 	{ 0x0536, 0x061c },
111 	{ 0x0538, 0x0000 },
112 	{ 0x053a, 0x0000 },
113 	{ 0x053c, 0x0000 },
114 	{ 0x053d, 0x0000 },
115 	{ 0x053e, 0x0000 },
116 	{ 0x053f, 0x0000 },
117 	{ 0x0540, 0x0000 },
118 	{ 0x0541, 0x0000 },
119 	{ 0x0542, 0x0000 },
120 	{ 0x0543, 0x0000 },
121 	{ 0x0544, 0x0000 },
122 	{ 0x0568, 0x0000 },
123 	{ 0x056a, 0x0000 },
124 	{ 0x1000, 0x0040 },
125 	{ 0x1002, 0x5405 },
126 	{ 0x1006, 0x5515 },
127 	{ 0x1007, 0x05f7 },
128 	{ 0x1009, 0x0b0a },
129 	{ 0x100a, 0x00ef },
130 	{ 0x100d, 0x0003 },
131 	{ 0x1010, 0xa433 },
132 	{ 0x1020, 0x0000 },
133 	{ 0x1200, 0x5a01 },
134 	{ 0x1202, 0x6524 },
135 	{ 0x1204, 0x1f00 },
136 	{ 0x1206, 0x0000 },
137 	{ 0x1208, 0x0000 },
138 	{ 0x120a, 0x0000 },
139 	{ 0x120c, 0x0000 },
140 	{ 0x120e, 0x0000 },
141 	{ 0x1210, 0x0000 },
142 	{ 0x1212, 0x0000 },
143 	{ 0x1300, 0x10a1 },
144 	{ 0x1302, 0x12ff },
145 	{ 0x1304, 0x0400 },
146 	{ 0x1305, 0x0844 },
147 	{ 0x1306, 0x4611 },
148 	{ 0x1308, 0x555e },
149 	{ 0x130a, 0x0000 },
150 	{ 0x130c, 0x2000 },
151 	{ 0x130e, 0x0100 },
152 	{ 0x130f, 0x0001 },
153 	{ 0x1310, 0x0000 },
154 	{ 0x1312, 0x0000 },
155 	{ 0x1314, 0x0000 },
156 	{ 0x1316, 0x0000 },
157 	{ 0x1318, 0x0000 },
158 	{ 0x131a, 0x0000 },
159 	{ 0x1322, 0x0029 },
160 	{ 0x1323, 0x4a52 },
161 	{ 0x1324, 0x002c },
162 	{ 0x1325, 0x0b02 },
163 	{ 0x1326, 0x002d },
164 	{ 0x1327, 0x6b5a },
165 	{ 0x1328, 0x002e },
166 	{ 0x1329, 0xcbb2 },
167 	{ 0x132a, 0x0030 },
168 	{ 0x132b, 0x2c0b },
169 	{ 0x1330, 0x0031 },
170 	{ 0x1331, 0x8c63 },
171 	{ 0x1332, 0x0032 },
172 	{ 0x1333, 0xecbb },
173 	{ 0x1334, 0x0034 },
174 	{ 0x1335, 0x4d13 },
175 	{ 0x1336, 0x0037 },
176 	{ 0x1337, 0x0dc3 },
177 	{ 0x1338, 0x003d },
178 	{ 0x1339, 0xef7b },
179 	{ 0x133a, 0x0044 },
180 	{ 0x133b, 0xd134 },
181 	{ 0x133c, 0x0047 },
182 	{ 0x133d, 0x91e4 },
183 	{ 0x133e, 0x004d },
184 	{ 0x133f, 0xc370 },
185 	{ 0x1340, 0x0053 },
186 	{ 0x1341, 0xf4fd },
187 	{ 0x1342, 0x0060 },
188 	{ 0x1343, 0x5816 },
189 	{ 0x1344, 0x006c },
190 	{ 0x1345, 0xbb2e },
191 	{ 0x1346, 0x0072 },
192 	{ 0x1347, 0xecbb },
193 	{ 0x1348, 0x0076 },
194 	{ 0x1349, 0x5d97 },
195 };
196 
197 static bool rt1015_volatile_register(struct device *dev, unsigned int reg)
198 {
199 	switch (reg) {
200 	case RT1015_RESET:
201 	case RT1015_CLK_DET:
202 	case RT1015_SIL_DET:
203 	case RT1015_VER_ID:
204 	case RT1015_VENDOR_ID:
205 	case RT1015_DEVICE_ID:
206 	case RT1015_PRO_ALT:
207 	case RT1015_DAC3:
208 	case RT1015_VBAT_TEST_OUT1:
209 	case RT1015_VBAT_TEST_OUT2:
210 	case RT1015_VBAT_PROT_ATT:
211 	case RT1015_VBAT_DET_CODE:
212 	case RT1015_SMART_BST_CTRL1:
213 	case RT1015_SPK_DC_DETECT1:
214 	case RT1015_SPK_DC_DETECT4:
215 	case RT1015_SPK_DC_DETECT5:
216 	case RT1015_DC_CALIB_CLSD1:
217 	case RT1015_DC_CALIB_CLSD5:
218 	case RT1015_DC_CALIB_CLSD6:
219 	case RT1015_DC_CALIB_CLSD7:
220 	case RT1015_DC_CALIB_CLSD8:
221 	case RT1015_S_BST_TIMING_INTER1:
222 	case RT1015_OSCK_STA:
223 	case RT1015_MONO_DYNA_CTRL1:
224 	case RT1015_MONO_DYNA_CTRL5:
225 		return true;
226 
227 	default:
228 		return false;
229 	}
230 }
231 
232 static bool rt1015_readable_register(struct device *dev, unsigned int reg)
233 {
234 	switch (reg) {
235 	case RT1015_RESET:
236 	case RT1015_CLK2:
237 	case RT1015_CLK3:
238 	case RT1015_PLL1:
239 	case RT1015_PLL2:
240 	case RT1015_DUM_RW1:
241 	case RT1015_DUM_RW2:
242 	case RT1015_DUM_RW3:
243 	case RT1015_DUM_RW4:
244 	case RT1015_DUM_RW5:
245 	case RT1015_DUM_RW6:
246 	case RT1015_CLK_DET:
247 	case RT1015_SIL_DET:
248 	case RT1015_CUSTOMER_ID:
249 	case RT1015_PCODE_FWVER:
250 	case RT1015_VER_ID:
251 	case RT1015_VENDOR_ID:
252 	case RT1015_DEVICE_ID:
253 	case RT1015_PAD_DRV1:
254 	case RT1015_PAD_DRV2:
255 	case RT1015_GAT_BOOST:
256 	case RT1015_PRO_ALT:
257 	case RT1015_OSCK_STA:
258 	case RT1015_MAN_I2C:
259 	case RT1015_DAC1:
260 	case RT1015_DAC2:
261 	case RT1015_DAC3:
262 	case RT1015_ADC1:
263 	case RT1015_ADC2:
264 	case RT1015_TDM_MASTER:
265 	case RT1015_TDM_TCON:
266 	case RT1015_TDM1_1:
267 	case RT1015_TDM1_2:
268 	case RT1015_TDM1_3:
269 	case RT1015_TDM1_4:
270 	case RT1015_TDM1_5:
271 	case RT1015_MIXER1:
272 	case RT1015_MIXER2:
273 	case RT1015_ANA_PROTECT1:
274 	case RT1015_ANA_CTRL_SEQ1:
275 	case RT1015_ANA_CTRL_SEQ2:
276 	case RT1015_VBAT_DET_DEB:
277 	case RT1015_VBAT_VOLT_DET1:
278 	case RT1015_VBAT_VOLT_DET2:
279 	case RT1015_VBAT_TEST_OUT1:
280 	case RT1015_VBAT_TEST_OUT2:
281 	case RT1015_VBAT_PROT_ATT:
282 	case RT1015_VBAT_DET_CODE:
283 	case RT1015_PWR1:
284 	case RT1015_PWR4:
285 	case RT1015_PWR5:
286 	case RT1015_PWR6:
287 	case RT1015_PWR7:
288 	case RT1015_PWR8:
289 	case RT1015_PWR9:
290 	case RT1015_CLASSD_SEQ:
291 	case RT1015_SMART_BST_CTRL1:
292 	case RT1015_SMART_BST_CTRL2:
293 	case RT1015_ANA_CTRL1:
294 	case RT1015_ANA_CTRL2:
295 	case RT1015_PWR_STATE_CTRL:
296 	case RT1015_MONO_DYNA_CTRL:
297 	case RT1015_MONO_DYNA_CTRL1:
298 	case RT1015_MONO_DYNA_CTRL2:
299 	case RT1015_MONO_DYNA_CTRL3:
300 	case RT1015_MONO_DYNA_CTRL4:
301 	case RT1015_MONO_DYNA_CTRL5:
302 	case RT1015_SPK_VOL:
303 	case RT1015_SHORT_DETTOP1:
304 	case RT1015_SHORT_DETTOP2:
305 	case RT1015_SPK_DC_DETECT1:
306 	case RT1015_SPK_DC_DETECT2:
307 	case RT1015_SPK_DC_DETECT3:
308 	case RT1015_SPK_DC_DETECT4:
309 	case RT1015_SPK_DC_DETECT5:
310 	case RT1015_BAT_RPO_STEP1:
311 	case RT1015_BAT_RPO_STEP2:
312 	case RT1015_BAT_RPO_STEP3:
313 	case RT1015_BAT_RPO_STEP4:
314 	case RT1015_BAT_RPO_STEP5:
315 	case RT1015_BAT_RPO_STEP6:
316 	case RT1015_BAT_RPO_STEP7:
317 	case RT1015_BAT_RPO_STEP8:
318 	case RT1015_BAT_RPO_STEP9:
319 	case RT1015_BAT_RPO_STEP10:
320 	case RT1015_BAT_RPO_STEP11:
321 	case RT1015_BAT_RPO_STEP12:
322 	case RT1015_SPREAD_SPEC1:
323 	case RT1015_SPREAD_SPEC2:
324 	case RT1015_PAD_STATUS:
325 	case RT1015_PADS_PULLING_CTRL1:
326 	case RT1015_PADS_DRIVING:
327 	case RT1015_SYS_RST1:
328 	case RT1015_SYS_RST2:
329 	case RT1015_SYS_GATING1:
330 	case RT1015_TEST_MODE1:
331 	case RT1015_TEST_MODE2:
332 	case RT1015_TIMING_CTRL1:
333 	case RT1015_PLL_INT:
334 	case RT1015_TEST_OUT1:
335 	case RT1015_DC_CALIB_CLSD1:
336 	case RT1015_DC_CALIB_CLSD2:
337 	case RT1015_DC_CALIB_CLSD3:
338 	case RT1015_DC_CALIB_CLSD4:
339 	case RT1015_DC_CALIB_CLSD5:
340 	case RT1015_DC_CALIB_CLSD6:
341 	case RT1015_DC_CALIB_CLSD7:
342 	case RT1015_DC_CALIB_CLSD8:
343 	case RT1015_DC_CALIB_CLSD9:
344 	case RT1015_DC_CALIB_CLSD10:
345 	case RT1015_CLSD_INTERNAL1:
346 	case RT1015_CLSD_INTERNAL2:
347 	case RT1015_CLSD_INTERNAL3:
348 	case RT1015_CLSD_INTERNAL4:
349 	case RT1015_CLSD_INTERNAL5:
350 	case RT1015_CLSD_INTERNAL6:
351 	case RT1015_CLSD_INTERNAL7:
352 	case RT1015_CLSD_INTERNAL8:
353 	case RT1015_CLSD_INTERNAL9:
354 	case RT1015_CLSD_OCP_CTRL:
355 	case RT1015_VREF_LV:
356 	case RT1015_MBIAS1:
357 	case RT1015_MBIAS2:
358 	case RT1015_MBIAS3:
359 	case RT1015_MBIAS4:
360 	case RT1015_VREF_LV1:
361 	case RT1015_S_BST_TIMING_INTER1:
362 	case RT1015_S_BST_TIMING_INTER2:
363 	case RT1015_S_BST_TIMING_INTER3:
364 	case RT1015_S_BST_TIMING_INTER4:
365 	case RT1015_S_BST_TIMING_INTER5:
366 	case RT1015_S_BST_TIMING_INTER6:
367 	case RT1015_S_BST_TIMING_INTER7:
368 	case RT1015_S_BST_TIMING_INTER8:
369 	case RT1015_S_BST_TIMING_INTER9:
370 	case RT1015_S_BST_TIMING_INTER10:
371 	case RT1015_S_BST_TIMING_INTER11:
372 	case RT1015_S_BST_TIMING_INTER12:
373 	case RT1015_S_BST_TIMING_INTER13:
374 	case RT1015_S_BST_TIMING_INTER14:
375 	case RT1015_S_BST_TIMING_INTER15:
376 	case RT1015_S_BST_TIMING_INTER16:
377 	case RT1015_S_BST_TIMING_INTER17:
378 	case RT1015_S_BST_TIMING_INTER18:
379 	case RT1015_S_BST_TIMING_INTER19:
380 	case RT1015_S_BST_TIMING_INTER20:
381 	case RT1015_S_BST_TIMING_INTER21:
382 	case RT1015_S_BST_TIMING_INTER22:
383 	case RT1015_S_BST_TIMING_INTER23:
384 	case RT1015_S_BST_TIMING_INTER24:
385 	case RT1015_S_BST_TIMING_INTER25:
386 	case RT1015_S_BST_TIMING_INTER26:
387 	case RT1015_S_BST_TIMING_INTER27:
388 	case RT1015_S_BST_TIMING_INTER28:
389 	case RT1015_S_BST_TIMING_INTER29:
390 	case RT1015_S_BST_TIMING_INTER30:
391 	case RT1015_S_BST_TIMING_INTER31:
392 	case RT1015_S_BST_TIMING_INTER32:
393 	case RT1015_S_BST_TIMING_INTER33:
394 	case RT1015_S_BST_TIMING_INTER34:
395 	case RT1015_S_BST_TIMING_INTER35:
396 	case RT1015_S_BST_TIMING_INTER36:
397 		return true;
398 
399 	default:
400 		return false;
401 	}
402 }
403 
404 static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9525, 75, 0);
405 
406 static const char * const rt1015_din_source_select[] = {
407 	"Left",
408 	"Right",
409 	"Left + Right average",
410 };
411 
412 static SOC_ENUM_SINGLE_DECL(rt1015_mono_lr_sel, RT1015_PAD_DRV2, 4,
413 	rt1015_din_source_select);
414 
415 static const char * const rt1015_boost_mode[] = {
416 	"Bypass", "Adaptive", "Fixed Adaptive"
417 };
418 
419 static SOC_ENUM_SINGLE_DECL(rt1015_boost_mode_enum, 0, 0,
420 	rt1015_boost_mode);
421 
422 static int rt1015_boost_mode_get(struct snd_kcontrol *kcontrol,
423 		struct snd_ctl_elem_value *ucontrol)
424 {
425 	struct snd_soc_component *component =
426 		snd_soc_kcontrol_component(kcontrol);
427 	struct rt1015_priv *rt1015 =
428 		snd_soc_component_get_drvdata(component);
429 
430 	ucontrol->value.integer.value[0] = rt1015->boost_mode;
431 
432 	return 0;
433 }
434 
435 static int rt1015_boost_mode_put(struct snd_kcontrol *kcontrol,
436 		struct snd_ctl_elem_value *ucontrol)
437 {
438 	struct snd_soc_component *component =
439 		snd_soc_kcontrol_component(kcontrol);
440 	struct rt1015_priv *rt1015 =
441 		snd_soc_component_get_drvdata(component);
442 
443 	rt1015->boost_mode = ucontrol->value.integer.value[0];
444 
445 	switch (rt1015->boost_mode) {
446 	case BYPASS:
447 		snd_soc_component_update_bits(component,
448 			RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK |
449 			RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK,
450 			RT1015_ABST_REG_MODE | RT1015_ABST_FIX_TGT_DIS |
451 			RT1015_BYPASS_SWRREG_BYPASS);
452 		break;
453 	case ADAPTIVE:
454 		snd_soc_component_update_bits(component,
455 			RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK |
456 			RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK,
457 			RT1015_ABST_AUTO_MODE | RT1015_ABST_FIX_TGT_DIS |
458 			RT1015_BYPASS_SWRREG_PASS);
459 		break;
460 	case FIXED_ADAPTIVE:
461 		snd_soc_component_update_bits(component,
462 			RT1015_SMART_BST_CTRL1, RT1015_ABST_AUTO_EN_MASK |
463 			RT1015_ABST_FIX_TGT_MASK | RT1015_BYPASS_SWR_REG_MASK,
464 			RT1015_ABST_AUTO_MODE | RT1015_ABST_FIX_TGT_EN |
465 			RT1015_BYPASS_SWRREG_PASS);
466 		break;
467 	default:
468 		dev_err(component->dev, "Unknown boost control.\n");
469 	}
470 
471 	return 0;
472 }
473 
474 static int rt1015_bypass_boost_get(struct snd_kcontrol *kcontrol,
475 		struct snd_ctl_elem_value *ucontrol)
476 {
477 	struct snd_soc_component *component =
478 		snd_soc_kcontrol_component(kcontrol);
479 	struct rt1015_priv *rt1015 =
480 		snd_soc_component_get_drvdata(component);
481 
482 	ucontrol->value.integer.value[0] = rt1015->bypass_boost;
483 
484 	return 0;
485 }
486 
487 static void rt1015_calibrate(struct rt1015_priv *rt1015)
488 {
489 	struct snd_soc_component *component = rt1015->component;
490 	struct regmap *regmap = rt1015->regmap;
491 
492 	snd_soc_dapm_mutex_lock(&component->dapm);
493 	regcache_cache_bypass(regmap, true);
494 
495 	regmap_write(regmap, RT1015_PWR1, 0xd7df);
496 	regmap_write(regmap, RT1015_PWR4, 0x00b2);
497 	regmap_write(regmap, RT1015_CLSD_INTERNAL8, 0x2008);
498 	regmap_write(regmap, RT1015_CLSD_INTERNAL9, 0x0140);
499 	regmap_write(regmap, RT1015_GAT_BOOST, 0x0efe);
500 	regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x000d);
501 	regmap_write(regmap, RT1015_PWR_STATE_CTRL, 0x000e);
502 	regmap_write(regmap, RT1015_DC_CALIB_CLSD1, 0x5a00);
503 	regmap_write(regmap, RT1015_DC_CALIB_CLSD1, 0x5a01);
504 	regmap_write(regmap, RT1015_DC_CALIB_CLSD1, 0x5a05);
505 	msleep(500);
506 	regmap_write(regmap, RT1015_PWR1, 0x0);
507 
508 	regcache_cache_bypass(regmap, false);
509 	regcache_mark_dirty(regmap);
510 	regcache_sync(regmap);
511 	snd_soc_dapm_mutex_unlock(&component->dapm);
512 }
513 
514 static int rt1015_bypass_boost_put(struct snd_kcontrol *kcontrol,
515 		struct snd_ctl_elem_value *ucontrol)
516 {
517 	struct snd_soc_component *component =
518 		snd_soc_kcontrol_component(kcontrol);
519 	struct rt1015_priv *rt1015 =
520 		snd_soc_component_get_drvdata(component);
521 
522 	if (!rt1015->dac_is_used) {
523 		rt1015->bypass_boost = ucontrol->value.integer.value[0];
524 		if (rt1015->bypass_boost == RT1015_Bypass_Boost &&
525 			!rt1015->cali_done) {
526 			rt1015_calibrate(rt1015);
527 			rt1015->cali_done = 1;
528 
529 			regmap_write(rt1015->regmap, RT1015_MONO_DYNA_CTRL, 0x0010);
530 		}
531 	} else
532 		dev_err(component->dev, "DAC is being used!\n");
533 
534 	return 0;
535 }
536 
537 static void rt1015_flush_work(struct work_struct *work)
538 {
539 	struct rt1015_priv *rt1015 = container_of(work, struct rt1015_priv,
540 						flush_work.work);
541 	struct snd_soc_component *component = rt1015->component;
542 	unsigned int val, i = 0, count = 20;
543 
544 	while (i < count) {
545 		usleep_range(1000, 1500);
546 		dev_dbg(component->dev, "Flush DAC (retry:%u)\n", i);
547 		regmap_read(rt1015->regmap, RT1015_CLK_DET, &val);
548 		if (val & 0x800)
549 			break;
550 		i++;
551 	}
552 
553 	regmap_write(rt1015->regmap, RT1015_SYS_RST1, 0x0597);
554 	regmap_write(rt1015->regmap, RT1015_SYS_RST1, 0x05f7);
555 	regmap_write(rt1015->regmap, RT1015_MAN_I2C, 0x0028);
556 
557 	if (val & 0x800)
558 		dev_dbg(component->dev, "Flush DAC completed.\n");
559 	else
560 		dev_warn(component->dev, "Fail to flush DAC data.\n");
561 }
562 
563 static const struct snd_kcontrol_new rt1015_snd_controls[] = {
564 	SOC_SINGLE_TLV("DAC Playback Volume", RT1015_DAC1, RT1015_DAC_VOL_SFT,
565 		127, 0, dac_vol_tlv),
566 	SOC_DOUBLE("DAC Playback Switch", RT1015_DAC3,
567 		RT1015_DA_MUTE_SFT, RT1015_DVOL_MUTE_FLAG_SFT, 1, 1),
568 	SOC_ENUM_EXT("Boost Mode", rt1015_boost_mode_enum,
569 		rt1015_boost_mode_get, rt1015_boost_mode_put),
570 	SOC_ENUM("Mono LR Select", rt1015_mono_lr_sel),
571 	SOC_SINGLE_EXT("Bypass Boost", SND_SOC_NOPM, 0, 1, 0,
572 		rt1015_bypass_boost_get, rt1015_bypass_boost_put),
573 };
574 
575 static int rt1015_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
576 			 struct snd_soc_dapm_widget *sink)
577 {
578 	struct snd_soc_component *component =
579 		snd_soc_dapm_to_component(source->dapm);
580 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
581 
582 	if (rt1015->sysclk_src == RT1015_SCLK_S_PLL)
583 		return 1;
584 	else
585 		return 0;
586 }
587 
588 static int r1015_dac_event(struct snd_soc_dapm_widget *w,
589 	struct snd_kcontrol *kcontrol, int event)
590 {
591 	struct snd_soc_component *component =
592 		snd_soc_dapm_to_component(w->dapm);
593 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
594 
595 	switch (event) {
596 	case SND_SOC_DAPM_PRE_PMU:
597 		rt1015->dac_is_used = 1;
598 		if (rt1015->bypass_boost == RT1015_Enable_Boost) {
599 			snd_soc_component_write(component,
600 				RT1015_SYS_RST1, 0x05f7);
601 			snd_soc_component_write(component,
602 				RT1015_GAT_BOOST, 0xacfe);
603 			snd_soc_component_write(component,
604 				RT1015_PWR9, 0xaa00);
605 			snd_soc_component_write(component,
606 				RT1015_GAT_BOOST, 0xecfe);
607 		} else {
608 			snd_soc_component_write(component,
609 				RT1015_SYS_RST1, 0x05f7);
610 			snd_soc_component_write(component,
611 				RT1015_PWR_STATE_CTRL, 0x026e);
612 		}
613 		break;
614 
615 	case SND_SOC_DAPM_POST_PMU:
616 		regmap_write(rt1015->regmap, RT1015_MAN_I2C, 0x00a8);
617 		break;
618 
619 	case SND_SOC_DAPM_POST_PMD:
620 		if (rt1015->bypass_boost == RT1015_Enable_Boost) {
621 			snd_soc_component_write(component,
622 				RT1015_PWR9, 0xa800);
623 			snd_soc_component_write(component,
624 				RT1015_SYS_RST1, 0x05f5);
625 		} else {
626 			snd_soc_component_write(component,
627 				RT1015_PWR_STATE_CTRL, 0x0268);
628 			snd_soc_component_write(component,
629 				RT1015_SYS_RST1, 0x05f5);
630 		}
631 		rt1015->dac_is_used = 0;
632 
633 		cancel_delayed_work_sync(&rt1015->flush_work);
634 		break;
635 
636 	default:
637 		break;
638 	}
639 	return 0;
640 }
641 
642 static int rt1015_amp_drv_event(struct snd_soc_dapm_widget *w,
643 	struct snd_kcontrol *kcontrol, int event)
644 {
645 	struct snd_soc_component *component =
646 		snd_soc_dapm_to_component(w->dapm);
647 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
648 
649 	switch (event) {
650 	case SND_SOC_DAPM_POST_PMU:
651 		if (rt1015->hw_config == RT1015_HW_28)
652 			schedule_delayed_work(&rt1015->flush_work, msecs_to_jiffies(10));
653 		break;
654 	default:
655 		break;
656 	}
657 	return 0;
658 }
659 
660 static const struct snd_soc_dapm_widget rt1015_dapm_widgets[] = {
661 	SND_SOC_DAPM_SUPPLY("LDO2", RT1015_PWR1, RT1015_PWR_LDO2_BIT, 0,
662 		NULL, 0),
663 	SND_SOC_DAPM_SUPPLY("INT RC CLK", RT1015_PWR1, RT1015_PWR_INTCLK_BIT,
664 		0, NULL, 0),
665 	SND_SOC_DAPM_SUPPLY("ISENSE", RT1015_PWR1, RT1015_PWR_ISENSE_BIT, 0,
666 		NULL, 0),
667 	SND_SOC_DAPM_SUPPLY("VSENSE", RT1015_PWR1, RT1015_PWR_VSENSE_BIT, 0,
668 		NULL, 0),
669 	SND_SOC_DAPM_SUPPLY("PLL", RT1015_PWR1, RT1015_PWR_PLL_BIT, 0,
670 		NULL, 0),
671 	SND_SOC_DAPM_SUPPLY("BG1 BG2", RT1015_PWR1, RT1015_PWR_BG_1_2_BIT, 0,
672 		NULL, 0),
673 	SND_SOC_DAPM_SUPPLY("MBIAS BG", RT1015_PWR1, RT1015_PWR_MBIAS_BG_BIT, 0,
674 		NULL, 0),
675 	SND_SOC_DAPM_SUPPLY("VBAT", RT1015_PWR1, RT1015_PWR_VBAT_BIT, 0, NULL,
676 		0),
677 	SND_SOC_DAPM_SUPPLY("MBIAS", RT1015_PWR1, RT1015_PWR_MBIAS_BIT, 0,
678 		NULL, 0),
679 	SND_SOC_DAPM_SUPPLY("ADCV", RT1015_PWR1, RT1015_PWR_ADCV_BIT, 0, NULL,
680 		0),
681 	SND_SOC_DAPM_SUPPLY("MIXERV", RT1015_PWR1, RT1015_PWR_MIXERV_BIT, 0,
682 		NULL, 0),
683 	SND_SOC_DAPM_SUPPLY("SUMV", RT1015_PWR1, RT1015_PWR_SUMV_BIT, 0, NULL,
684 		0),
685 	SND_SOC_DAPM_SUPPLY("VREFLV", RT1015_PWR1, RT1015_PWR_VREFLV_BIT, 0,
686 		NULL, 0),
687 
688 	SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0),
689 	SND_SOC_DAPM_DAC_E("DAC", NULL, RT1015_PWR1, RT1015_PWR_DAC_BIT, 0,
690 		r1015_dac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
691 		SND_SOC_DAPM_POST_PMD),
692 
693 	SND_SOC_DAPM_OUT_DRV_E("Amp Drv", SND_SOC_NOPM, 0, 0, NULL, 0,
694 			rt1015_amp_drv_event, SND_SOC_DAPM_POST_PMU),
695 	SND_SOC_DAPM_OUTPUT("SPO"),
696 };
697 
698 static const struct snd_soc_dapm_route rt1015_dapm_routes[] = {
699 	{ "DAC", NULL, "AIFRX" },
700 	{ "DAC", NULL, "LDO2" },
701 	{ "DAC", NULL, "PLL", rt1015_is_sys_clk_from_pll},
702 	{ "DAC", NULL, "INT RC CLK" },
703 	{ "DAC", NULL, "ISENSE" },
704 	{ "DAC", NULL, "VSENSE" },
705 	{ "DAC", NULL, "BG1 BG2" },
706 	{ "DAC", NULL, "MBIAS BG" },
707 	{ "DAC", NULL, "VBAT" },
708 	{ "DAC", NULL, "MBIAS" },
709 	{ "DAC", NULL, "ADCV" },
710 	{ "DAC", NULL, "MIXERV" },
711 	{ "DAC", NULL, "SUMV" },
712 	{ "DAC", NULL, "VREFLV" },
713 	{ "Amp Drv", NULL, "DAC" },
714 	{ "SPO", NULL, "Amp Drv" },
715 };
716 
717 static int rt1015_hw_params(struct snd_pcm_substream *substream,
718 	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
719 {
720 	struct snd_soc_component *component = dai->component;
721 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
722 	int pre_div, bclk_ms, frame_size;
723 	unsigned int val_len = 0;
724 
725 	rt1015->lrck = params_rate(params);
726 	pre_div = rl6231_get_clk_info(rt1015->sysclk, rt1015->lrck);
727 	if (pre_div < 0) {
728 		dev_err(component->dev, "Unsupported clock rate\n");
729 		return -EINVAL;
730 	}
731 
732 	frame_size = snd_soc_params_to_frame_size(params);
733 	if (frame_size < 0) {
734 		dev_err(component->dev, "Unsupported frame size: %d\n",
735 			frame_size);
736 		return -EINVAL;
737 	}
738 
739 	bclk_ms = frame_size > 32;
740 	rt1015->bclk = rt1015->lrck * (32 << bclk_ms);
741 
742 	dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
743 				bclk_ms, pre_div, dai->id);
744 
745 	dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
746 				rt1015->lrck, pre_div, dai->id);
747 
748 	switch (params_width(params)) {
749 	case 16:
750 		break;
751 	case 20:
752 		val_len = RT1015_I2S_DL_20;
753 		break;
754 	case 24:
755 		val_len = RT1015_I2S_DL_24;
756 		break;
757 	case 8:
758 		val_len = RT1015_I2S_DL_8;
759 		break;
760 	default:
761 		return -EINVAL;
762 	}
763 
764 	snd_soc_component_update_bits(component, RT1015_TDM_MASTER,
765 		RT1015_I2S_DL_MASK, val_len);
766 	snd_soc_component_update_bits(component, RT1015_CLK2,
767 		RT1015_FS_PD_MASK, pre_div << RT1015_FS_PD_SFT);
768 
769 	return 0;
770 }
771 
772 static int rt1015_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
773 {
774 	struct snd_soc_component *component = dai->component;
775 	unsigned int reg_val = 0, reg_val2 = 0;
776 
777 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
778 	case SND_SOC_DAIFMT_CBM_CFM:
779 		reg_val |= RT1015_TCON_TDM_MS_M;
780 		break;
781 	case SND_SOC_DAIFMT_CBS_CFS:
782 		reg_val |= RT1015_TCON_TDM_MS_S;
783 		break;
784 	default:
785 		return -EINVAL;
786 	}
787 
788 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
789 	case SND_SOC_DAIFMT_NB_NF:
790 		break;
791 	case SND_SOC_DAIFMT_IB_NF:
792 		reg_val2 |= RT1015_TDM_INV_BCLK;
793 		break;
794 	default:
795 		return -EINVAL;
796 	}
797 
798 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
799 	case SND_SOC_DAIFMT_I2S:
800 		break;
801 
802 	case SND_SOC_DAIFMT_LEFT_J:
803 		reg_val |= RT1015_I2S_M_DF_LEFT;
804 		break;
805 
806 	case SND_SOC_DAIFMT_DSP_A:
807 		reg_val |= RT1015_I2S_M_DF_PCM_A;
808 		break;
809 
810 	case SND_SOC_DAIFMT_DSP_B:
811 		reg_val |= RT1015_I2S_M_DF_PCM_B;
812 		break;
813 
814 	default:
815 		return -EINVAL;
816 	}
817 
818 	snd_soc_component_update_bits(component, RT1015_TDM_MASTER,
819 			RT1015_TCON_TDM_MS_MASK | RT1015_I2S_M_DF_MASK,
820 			reg_val);
821 	snd_soc_component_update_bits(component, RT1015_TDM1_1,
822 			RT1015_TDM_INV_BCLK_MASK, reg_val2);
823 
824 	return 0;
825 }
826 
827 static int rt1015_set_component_sysclk(struct snd_soc_component *component,
828 		int clk_id, int source, unsigned int freq, int dir)
829 {
830 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
831 	unsigned int reg_val = 0;
832 
833 	if (freq == rt1015->sysclk && clk_id == rt1015->sysclk_src)
834 		return 0;
835 
836 	switch (clk_id) {
837 	case RT1015_SCLK_S_MCLK:
838 		reg_val |= RT1015_CLK_SYS_PRE_SEL_MCLK;
839 		break;
840 
841 	case RT1015_SCLK_S_PLL:
842 		reg_val |= RT1015_CLK_SYS_PRE_SEL_PLL;
843 		break;
844 
845 	default:
846 		dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
847 		return -EINVAL;
848 	}
849 
850 	rt1015->sysclk = freq;
851 	rt1015->sysclk_src = clk_id;
852 
853 	dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n",
854 		freq, clk_id);
855 
856 	snd_soc_component_update_bits(component, RT1015_CLK2,
857 			RT1015_CLK_SYS_PRE_SEL_MASK, reg_val);
858 
859 	return 0;
860 }
861 
862 static int rt1015_set_component_pll(struct snd_soc_component *component,
863 		int pll_id, int source, unsigned int freq_in,
864 		unsigned int freq_out)
865 {
866 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
867 	struct rl6231_pll_code pll_code;
868 	int ret;
869 
870 	if (!freq_in || !freq_out) {
871 		dev_dbg(component->dev, "PLL disabled\n");
872 
873 		rt1015->pll_in = 0;
874 		rt1015->pll_out = 0;
875 
876 		return 0;
877 	}
878 
879 	if (source == rt1015->pll_src && freq_in == rt1015->pll_in &&
880 		freq_out == rt1015->pll_out)
881 		return 0;
882 
883 	if (source == RT1015_PLL_S_BCLK) {
884 		if (rt1015->bclk_ratio == 0) {
885 			dev_err(component->dev,
886 				"Can not support bclk ratio as 0.\n");
887 			return -EINVAL;
888 		}
889 	}
890 
891 	switch (source) {
892 	case RT1015_PLL_S_MCLK:
893 		snd_soc_component_update_bits(component, RT1015_CLK2,
894 			RT1015_PLL_SEL_MASK, RT1015_PLL_SEL_PLL_SRC2);
895 		break;
896 
897 	case RT1015_PLL_S_BCLK:
898 		snd_soc_component_update_bits(component, RT1015_CLK2,
899 			RT1015_PLL_SEL_MASK, RT1015_PLL_SEL_BCLK);
900 		break;
901 
902 	default:
903 		dev_err(component->dev, "Unknown PLL Source %d\n", source);
904 		return -EINVAL;
905 	}
906 
907 	ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
908 	if (ret < 0) {
909 		dev_err(component->dev, "Unsupport input clock %d\n", freq_in);
910 		return ret;
911 	}
912 
913 	dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n",
914 		pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
915 		pll_code.n_code, pll_code.k_code);
916 
917 	snd_soc_component_write(component, RT1015_PLL1,
918 		(pll_code.m_bp ? 0 : pll_code.m_code) << RT1015_PLL_M_SFT |
919 		pll_code.m_bp << RT1015_PLL_M_BP_SFT | pll_code.n_code);
920 	snd_soc_component_write(component, RT1015_PLL2,
921 		pll_code.k_code);
922 
923 	rt1015->pll_in = freq_in;
924 	rt1015->pll_out = freq_out;
925 	rt1015->pll_src = source;
926 
927 	return 0;
928 }
929 
930 static int rt1015_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
931 {
932 	struct snd_soc_component *component = dai->component;
933 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
934 
935 	dev_dbg(component->dev, "%s ratio=%d\n", __func__, ratio);
936 
937 	rt1015->bclk_ratio = ratio;
938 
939 	if (ratio == 50) {
940 		dev_dbg(component->dev, "Unsupport bclk ratio\n");
941 		return -EINVAL;
942 	}
943 
944 	return 0;
945 }
946 
947 static int rt1015_probe(struct snd_soc_component *component)
948 {
949 	struct rt1015_priv *rt1015 =
950 		snd_soc_component_get_drvdata(component);
951 
952 	rt1015->component = component;
953 	rt1015->bclk_ratio = 0;
954 	rt1015->cali_done = 0;
955 	snd_soc_component_write(component, RT1015_BAT_RPO_STEP1, 0x061c);
956 
957 	INIT_DELAYED_WORK(&rt1015->flush_work, rt1015_flush_work);
958 
959 	return 0;
960 }
961 
962 static void rt1015_remove(struct snd_soc_component *component)
963 {
964 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
965 
966 	cancel_delayed_work_sync(&rt1015->flush_work);
967 	regmap_write(rt1015->regmap, RT1015_RESET, 0);
968 }
969 
970 #define RT1015_STEREO_RATES SNDRV_PCM_RATE_8000_192000
971 #define RT1015_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
972 			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
973 
974 static struct snd_soc_dai_ops rt1015_aif_dai_ops = {
975 	.hw_params = rt1015_hw_params,
976 	.set_fmt = rt1015_set_dai_fmt,
977 	.set_bclk_ratio = rt1015_set_bclk_ratio,
978 };
979 
980 static struct snd_soc_dai_driver rt1015_dai[] = {
981 	{
982 		.name = "rt1015-aif",
983 		.id = 0,
984 		.playback = {
985 			.stream_name = "AIF Playback",
986 			.channels_min = 1,
987 			.channels_max = 4,
988 			.rates = RT1015_STEREO_RATES,
989 			.formats = RT1015_FORMATS,
990 		},
991 		.ops = &rt1015_aif_dai_ops,
992 	}
993 };
994 
995 #ifdef CONFIG_PM
996 static int rt1015_suspend(struct snd_soc_component *component)
997 {
998 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
999 
1000 	regcache_cache_only(rt1015->regmap, true);
1001 	regcache_mark_dirty(rt1015->regmap);
1002 
1003 	return 0;
1004 }
1005 
1006 static int rt1015_resume(struct snd_soc_component *component)
1007 {
1008 	struct rt1015_priv *rt1015 = snd_soc_component_get_drvdata(component);
1009 
1010 	regcache_cache_only(rt1015->regmap, false);
1011 	regcache_sync(rt1015->regmap);
1012 	return 0;
1013 }
1014 #else
1015 #define rt1015_suspend NULL
1016 #define rt1015_resume NULL
1017 #endif
1018 
1019 static const struct snd_soc_component_driver soc_component_dev_rt1015 = {
1020 	.probe = rt1015_probe,
1021 	.remove = rt1015_remove,
1022 	.suspend = rt1015_suspend,
1023 	.resume = rt1015_resume,
1024 	.controls = rt1015_snd_controls,
1025 	.num_controls = ARRAY_SIZE(rt1015_snd_controls),
1026 	.dapm_widgets = rt1015_dapm_widgets,
1027 	.num_dapm_widgets = ARRAY_SIZE(rt1015_dapm_widgets),
1028 	.dapm_routes = rt1015_dapm_routes,
1029 	.num_dapm_routes = ARRAY_SIZE(rt1015_dapm_routes),
1030 	.set_sysclk = rt1015_set_component_sysclk,
1031 	.set_pll = rt1015_set_component_pll,
1032 	.use_pmdown_time	= 1,
1033 	.endianness		= 1,
1034 	.non_legacy_dai_naming	= 1,
1035 };
1036 
1037 static const struct regmap_config rt1015_regmap = {
1038 	.reg_bits = 16,
1039 	.val_bits = 16,
1040 	.max_register = RT1015_S_BST_TIMING_INTER36,
1041 	.volatile_reg = rt1015_volatile_register,
1042 	.readable_reg = rt1015_readable_register,
1043 	.cache_type = REGCACHE_RBTREE,
1044 	.reg_defaults = rt1015_reg,
1045 	.num_reg_defaults = ARRAY_SIZE(rt1015_reg),
1046 };
1047 
1048 static const struct i2c_device_id rt1015_i2c_id[] = {
1049 	{ "rt1015", 0 },
1050 	{ }
1051 };
1052 MODULE_DEVICE_TABLE(i2c, rt1015_i2c_id);
1053 
1054 #if defined(CONFIG_OF)
1055 static const struct of_device_id rt1015_of_match[] = {
1056 	{ .compatible = "realtek,rt1015", },
1057 	{},
1058 };
1059 MODULE_DEVICE_TABLE(of, rt1015_of_match);
1060 #endif
1061 
1062 #ifdef CONFIG_ACPI
1063 static struct acpi_device_id rt1015_acpi_match[] = {
1064 	{"10EC1015", 0,},
1065 	{},
1066 };
1067 MODULE_DEVICE_TABLE(acpi, rt1015_acpi_match);
1068 #endif
1069 
1070 static int rt1015_i2c_probe(struct i2c_client *i2c,
1071 	const struct i2c_device_id *id)
1072 {
1073 	struct rt1015_priv *rt1015;
1074 	int ret;
1075 	unsigned int val;
1076 
1077 	rt1015 = devm_kzalloc(&i2c->dev, sizeof(struct rt1015_priv),
1078 				GFP_KERNEL);
1079 	if (rt1015 == NULL)
1080 		return -ENOMEM;
1081 
1082 	i2c_set_clientdata(i2c, rt1015);
1083 
1084 	rt1015->regmap = devm_regmap_init_i2c(i2c, &rt1015_regmap);
1085 	if (IS_ERR(rt1015->regmap)) {
1086 		ret = PTR_ERR(rt1015->regmap);
1087 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1088 			ret);
1089 		return ret;
1090 	}
1091 
1092 	rt1015->hw_config = (i2c->addr == 0x29) ? RT1015_HW_29 : RT1015_HW_28;
1093 
1094 	regmap_read(rt1015->regmap, RT1015_DEVICE_ID, &val);
1095 	if ((val != RT1015_DEVICE_ID_VAL) && (val != RT1015_DEVICE_ID_VAL2)) {
1096 		dev_err(&i2c->dev,
1097 			"Device with ID register %x is not rt1015\n", val);
1098 		return -ENODEV;
1099 	}
1100 
1101 	return devm_snd_soc_register_component(&i2c->dev,
1102 		&soc_component_dev_rt1015,
1103 		rt1015_dai, ARRAY_SIZE(rt1015_dai));
1104 }
1105 
1106 static void rt1015_i2c_shutdown(struct i2c_client *client)
1107 {
1108 	struct rt1015_priv *rt1015 = i2c_get_clientdata(client);
1109 
1110 	regmap_write(rt1015->regmap, RT1015_RESET, 0);
1111 }
1112 
1113 static struct i2c_driver rt1015_i2c_driver = {
1114 	.driver = {
1115 		.name = "rt1015",
1116 		.of_match_table = of_match_ptr(rt1015_of_match),
1117 		.acpi_match_table = ACPI_PTR(rt1015_acpi_match),
1118 	},
1119 	.probe = rt1015_i2c_probe,
1120 	.shutdown = rt1015_i2c_shutdown,
1121 	.id_table = rt1015_i2c_id,
1122 };
1123 module_i2c_driver(rt1015_i2c_driver);
1124 
1125 MODULE_DESCRIPTION("ASoC RT1015 driver");
1126 MODULE_AUTHOR("Jack Yu <jack.yu@realtek.com>");
1127 MODULE_LICENSE("GPL v2");
1128