xref: /linux/sound/soc/codecs/cs42l73.c (revision e21f9e2e862e9eb3dd64eaddb6256b3e5098660f)
1 /*
2  * cs42l73.c  --  CS42L73 ALSA Soc Audio driver
3  *
4  * Copyright 2011 Cirrus Logic, Inc.
5  *
6  * Authors: Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>
7  *	    Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  */
14 
15 #include <linux/module.h>
16 #include <linux/moduleparam.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/delay.h>
20 #include <linux/of_gpio.h>
21 #include <linux/pm.h>
22 #include <linux/i2c.h>
23 #include <linux/regmap.h>
24 #include <linux/slab.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
30 #include <sound/initval.h>
31 #include <sound/tlv.h>
32 #include <sound/cs42l73.h>
33 #include "cs42l73.h"
34 
35 struct sp_config {
36 	u8 spc, mmcc, spfs;
37 	u32 srate;
38 };
39 struct  cs42l73_private {
40 	struct cs42l73_platform_data pdata;
41 	struct sp_config config[3];
42 	struct regmap *regmap;
43 	u32 sysclk;
44 	u8 mclksel;
45 	u32 mclk;
46 	int shutdwn_delay;
47 };
48 
49 static const struct reg_default cs42l73_reg_defaults[] = {
50 	{ 6, 0xF1 },	/* r06	- Power Ctl 1 */
51 	{ 7, 0xDF },	/* r07	- Power Ctl 2 */
52 	{ 8, 0x3F },	/* r08	- Power Ctl 3 */
53 	{ 9, 0x50 },	/* r09	- Charge Pump Freq */
54 	{ 10, 0x53 },	/* r0A	- Output Load MicBias Short Detect */
55 	{ 11, 0x00 },	/* r0B	- DMIC Master Clock Ctl */
56 	{ 12, 0x00 },	/* r0C	- Aux PCM Ctl */
57 	{ 13, 0x15 },	/* r0D	- Aux PCM Master Clock Ctl */
58 	{ 14, 0x00 },	/* r0E	- Audio PCM Ctl */
59 	{ 15, 0x15 },	/* r0F	- Audio PCM Master Clock Ctl */
60 	{ 16, 0x00 },	/* r10	- Voice PCM Ctl */
61 	{ 17, 0x15 },	/* r11	- Voice PCM Master Clock Ctl */
62 	{ 18, 0x00 },	/* r12	- Voice/Aux Sample Rate */
63 	{ 19, 0x06 },	/* r13	- Misc I/O Path Ctl */
64 	{ 20, 0x00 },	/* r14	- ADC Input Path Ctl */
65 	{ 21, 0x00 },	/* r15	- MICA Preamp, PGA Volume */
66 	{ 22, 0x00 },	/* r16	- MICB Preamp, PGA Volume */
67 	{ 23, 0x00 },	/* r17	- Input Path A Digital Volume */
68 	{ 24, 0x00 },	/* r18	- Input Path B Digital Volume */
69 	{ 25, 0x00 },	/* r19	- Playback Digital Ctl */
70 	{ 26, 0x00 },	/* r1A	- HP/LO Left Digital Volume */
71 	{ 27, 0x00 },	/* r1B	- HP/LO Right Digital Volume */
72 	{ 28, 0x00 },	/* r1C	- Speakerphone Digital Volume */
73 	{ 29, 0x00 },	/* r1D	- Ear/SPKLO Digital Volume */
74 	{ 30, 0x00 },	/* r1E	- HP Left Analog Volume */
75 	{ 31, 0x00 },	/* r1F	- HP Right Analog Volume */
76 	{ 32, 0x00 },	/* r20	- LO Left Analog Volume */
77 	{ 33, 0x00 },	/* r21	- LO Right Analog Volume */
78 	{ 34, 0x00 },	/* r22	- Stereo Input Path Advisory Volume */
79 	{ 35, 0x00 },	/* r23	- Aux PCM Input Advisory Volume */
80 	{ 36, 0x00 },	/* r24	- Audio PCM Input Advisory Volume */
81 	{ 37, 0x00 },	/* r25	- Voice PCM Input Advisory Volume */
82 	{ 38, 0x00 },	/* r26	- Limiter Attack Rate HP/LO */
83 	{ 39, 0x7F },	/* r27	- Limter Ctl, Release Rate HP/LO */
84 	{ 40, 0x00 },	/* r28	- Limter Threshold HP/LO */
85 	{ 41, 0x00 },	/* r29	- Limiter Attack Rate Speakerphone */
86 	{ 42, 0x3F },	/* r2A	- Limter Ctl, Release Rate Speakerphone */
87 	{ 43, 0x00 },	/* r2B	- Limter Threshold Speakerphone */
88 	{ 44, 0x00 },	/* r2C	- Limiter Attack Rate Ear/SPKLO */
89 	{ 45, 0x3F },	/* r2D	- Limter Ctl, Release Rate Ear/SPKLO */
90 	{ 46, 0x00 },	/* r2E	- Limter Threshold Ear/SPKLO */
91 	{ 47, 0x00 },	/* r2F	- ALC Enable, Attack Rate Left/Right */
92 	{ 48, 0x3F },	/* r30	- ALC Release Rate Left/Right */
93 	{ 49, 0x00 },	/* r31	- ALC Threshold Left/Right */
94 	{ 50, 0x00 },	/* r32	- Noise Gate Ctl Left/Right */
95 	{ 51, 0x00 },	/* r33	- ALC/NG Misc Ctl */
96 	{ 52, 0x18 },	/* r34	- Mixer Ctl */
97 	{ 53, 0x3F },	/* r35	- HP/LO Left Mixer Input Path Volume */
98 	{ 54, 0x3F },	/* r36	- HP/LO Right Mixer Input Path Volume */
99 	{ 55, 0x3F },	/* r37	- HP/LO Left Mixer Aux PCM Volume */
100 	{ 56, 0x3F },	/* r38	- HP/LO Right Mixer Aux PCM Volume */
101 	{ 57, 0x3F },	/* r39	- HP/LO Left Mixer Audio PCM Volume */
102 	{ 58, 0x3F },	/* r3A	- HP/LO Right Mixer Audio PCM Volume */
103 	{ 59, 0x3F },	/* r3B	- HP/LO Left Mixer Voice PCM Mono Volume */
104 	{ 60, 0x3F },	/* r3C	- HP/LO Right Mixer Voice PCM Mono Volume */
105 	{ 61, 0x3F },	/* r3D	- Aux PCM Left Mixer Input Path Volume */
106 	{ 62, 0x3F },	/* r3E	- Aux PCM Right Mixer Input Path Volume */
107 	{ 63, 0x3F },	/* r3F	- Aux PCM Left Mixer Volume */
108 	{ 64, 0x3F },	/* r40	- Aux PCM Left Mixer Volume */
109 	{ 65, 0x3F },	/* r41	- Aux PCM Left Mixer Audio PCM L Volume */
110 	{ 66, 0x3F },	/* r42	- Aux PCM Right Mixer Audio PCM R Volume */
111 	{ 67, 0x3F },	/* r43	- Aux PCM Left Mixer Voice PCM Volume */
112 	{ 68, 0x3F },	/* r44	- Aux PCM Right Mixer Voice PCM Volume */
113 	{ 69, 0x3F },	/* r45	- Audio PCM Left Input Path Volume */
114 	{ 70, 0x3F },	/* r46	- Audio PCM Right Input Path Volume */
115 	{ 71, 0x3F },	/* r47	- Audio PCM Left Mixer Aux PCM L Volume */
116 	{ 72, 0x3F },	/* r48	- Audio PCM Right Mixer Aux PCM R Volume */
117 	{ 73, 0x3F },	/* r49	- Audio PCM Left Mixer Volume */
118 	{ 74, 0x3F },	/* r4A	- Audio PCM Right Mixer Volume */
119 	{ 75, 0x3F },	/* r4B	- Audio PCM Left Mixer Voice PCM Volume */
120 	{ 76, 0x3F },	/* r4C	- Audio PCM Right Mixer Voice PCM Volume */
121 	{ 77, 0x3F },	/* r4D	- Voice PCM Left Input Path Volume */
122 	{ 78, 0x3F },	/* r4E	- Voice PCM Right Input Path Volume */
123 	{ 79, 0x3F },	/* r4F	- Voice PCM Left Mixer Aux PCM L Volume */
124 	{ 80, 0x3F },	/* r50	- Voice PCM Right Mixer Aux PCM R Volume */
125 	{ 81, 0x3F },	/* r51	- Voice PCM Left Mixer Audio PCM L Volume */
126 	{ 82, 0x3F },	/* r52	- Voice PCM Right Mixer Audio PCM R Volume */
127 	{ 83, 0x3F },	/* r53	- Voice PCM Left Mixer Voice PCM Volume */
128 	{ 84, 0x3F },	/* r54	- Voice PCM Right Mixer Voice PCM Volume */
129 	{ 85, 0xAA },	/* r55	- Mono Mixer Ctl */
130 	{ 86, 0x3F },	/* r56	- SPK Mono Mixer Input Path Volume */
131 	{ 87, 0x3F },	/* r57	- SPK Mono Mixer Aux PCM Mono/L/R Volume */
132 	{ 88, 0x3F },	/* r58	- SPK Mono Mixer Audio PCM Mono/L/R Volume */
133 	{ 89, 0x3F },	/* r59	- SPK Mono Mixer Voice PCM Mono Volume */
134 	{ 90, 0x3F },	/* r5A	- SPKLO Mono Mixer Input Path Mono Volume */
135 	{ 91, 0x3F },	/* r5B	- SPKLO Mono Mixer Aux Mono/L/R Volume */
136 	{ 92, 0x3F },	/* r5C	- SPKLO Mono Mixer Audio Mono/L/R Volume */
137 	{ 93, 0x3F },	/* r5D	- SPKLO Mono Mixer Voice Mono Volume */
138 	{ 94, 0x00 },	/* r5E	- Interrupt Mask 1 */
139 	{ 95, 0x00 },	/* r5F	- Interrupt Mask 2 */
140 };
141 
142 static bool cs42l73_volatile_register(struct device *dev, unsigned int reg)
143 {
144 	switch (reg) {
145 	case CS42L73_IS1:
146 	case CS42L73_IS2:
147 		return true;
148 	default:
149 		return false;
150 	}
151 }
152 
153 static bool cs42l73_readable_register(struct device *dev, unsigned int reg)
154 {
155 	switch (reg) {
156 	case CS42L73_DEVID_AB ... CS42L73_DEVID_E:
157 	case CS42L73_REVID ... CS42L73_IM2:
158 		return true;
159 	default:
160 		return false;
161 	}
162 }
163 
164 static const DECLARE_TLV_DB_RANGE(hpaloa_tlv,
165 	0, 13, TLV_DB_SCALE_ITEM(-7600, 200, 0),
166 	14, 75, TLV_DB_SCALE_ITEM(-4900, 100, 0)
167 );
168 
169 static DECLARE_TLV_DB_SCALE(adc_boost_tlv, 0, 2500, 0);
170 
171 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0);
172 
173 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0);
174 
175 static DECLARE_TLV_DB_SCALE(micpga_tlv, -600, 50, 0);
176 
177 static const DECLARE_TLV_DB_RANGE(limiter_tlv,
178 	0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0),
179 	3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0)
180 );
181 
182 static const DECLARE_TLV_DB_SCALE(attn_tlv, -6300, 100, 1);
183 
184 static const char * const cs42l73_pgaa_text[] = { "Line A", "Mic 1" };
185 static const char * const cs42l73_pgab_text[] = { "Line B", "Mic 2" };
186 
187 static SOC_ENUM_SINGLE_DECL(pgaa_enum,
188 			    CS42L73_ADCIPC, 3,
189 			    cs42l73_pgaa_text);
190 
191 static SOC_ENUM_SINGLE_DECL(pgab_enum,
192 			    CS42L73_ADCIPC, 7,
193 			    cs42l73_pgab_text);
194 
195 static const struct snd_kcontrol_new pgaa_mux =
196 	SOC_DAPM_ENUM("Left Analog Input Capture Mux", pgaa_enum);
197 
198 static const struct snd_kcontrol_new pgab_mux =
199 	SOC_DAPM_ENUM("Right Analog Input Capture Mux", pgab_enum);
200 
201 static const struct snd_kcontrol_new input_left_mixer[] = {
202 	SOC_DAPM_SINGLE("ADC Left Input", CS42L73_PWRCTL1,
203 			5, 1, 1),
204 	SOC_DAPM_SINGLE("DMIC Left Input", CS42L73_PWRCTL1,
205 			4, 1, 1),
206 };
207 
208 static const struct snd_kcontrol_new input_right_mixer[] = {
209 	SOC_DAPM_SINGLE("ADC Right Input", CS42L73_PWRCTL1,
210 			7, 1, 1),
211 	SOC_DAPM_SINGLE("DMIC Right Input", CS42L73_PWRCTL1,
212 			6, 1, 1),
213 };
214 
215 static const char * const cs42l73_ng_delay_text[] = {
216 	"50ms", "100ms", "150ms", "200ms" };
217 
218 static SOC_ENUM_SINGLE_DECL(ng_delay_enum,
219 			    CS42L73_NGCAB, 0,
220 			    cs42l73_ng_delay_text);
221 
222 static const char * const cs42l73_mono_mix_texts[] = {
223 	"Left", "Right", "Mono Mix"};
224 
225 static const unsigned int cs42l73_mono_mix_values[] = { 0, 1, 2 };
226 
227 static const struct soc_enum spk_asp_enum =
228 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 6, 3,
229 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
230 			      cs42l73_mono_mix_texts,
231 			      cs42l73_mono_mix_values);
232 
233 static const struct snd_kcontrol_new spk_asp_mixer =
234 	SOC_DAPM_ENUM("Route", spk_asp_enum);
235 
236 static const struct soc_enum spk_xsp_enum =
237 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 4, 3,
238 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
239 			      cs42l73_mono_mix_texts,
240 			      cs42l73_mono_mix_values);
241 
242 static const struct snd_kcontrol_new spk_xsp_mixer =
243 	SOC_DAPM_ENUM("Route", spk_xsp_enum);
244 
245 static const struct soc_enum esl_asp_enum =
246 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 2, 3,
247 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
248 			      cs42l73_mono_mix_texts,
249 			      cs42l73_mono_mix_values);
250 
251 static const struct snd_kcontrol_new esl_asp_mixer =
252 	SOC_DAPM_ENUM("Route", esl_asp_enum);
253 
254 static const struct soc_enum esl_xsp_enum =
255 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 0, 3,
256 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
257 			      cs42l73_mono_mix_texts,
258 			      cs42l73_mono_mix_values);
259 
260 static const struct snd_kcontrol_new esl_xsp_mixer =
261 	SOC_DAPM_ENUM("Route", esl_xsp_enum);
262 
263 static const char * const cs42l73_ip_swap_text[] = {
264 	"Stereo", "Mono A", "Mono B", "Swap A-B"};
265 
266 static SOC_ENUM_SINGLE_DECL(ip_swap_enum,
267 			    CS42L73_MIOPC, 6,
268 			    cs42l73_ip_swap_text);
269 
270 static const char * const cs42l73_spo_mixer_text[] = {"Mono", "Stereo"};
271 
272 static SOC_ENUM_SINGLE_DECL(vsp_output_mux_enum,
273 			    CS42L73_MIXERCTL, 5,
274 			    cs42l73_spo_mixer_text);
275 
276 static SOC_ENUM_SINGLE_DECL(xsp_output_mux_enum,
277 			    CS42L73_MIXERCTL, 4,
278 			    cs42l73_spo_mixer_text);
279 
280 static const struct snd_kcontrol_new vsp_output_mux =
281 	SOC_DAPM_ENUM("Route", vsp_output_mux_enum);
282 
283 static const struct snd_kcontrol_new xsp_output_mux =
284 	SOC_DAPM_ENUM("Route", xsp_output_mux_enum);
285 
286 static const struct snd_kcontrol_new hp_amp_ctl =
287 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 0, 1, 1);
288 
289 static const struct snd_kcontrol_new lo_amp_ctl =
290 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 1, 1, 1);
291 
292 static const struct snd_kcontrol_new spk_amp_ctl =
293 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 2, 1, 1);
294 
295 static const struct snd_kcontrol_new spklo_amp_ctl =
296 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 4, 1, 1);
297 
298 static const struct snd_kcontrol_new ear_amp_ctl =
299 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 3, 1, 1);
300 
301 static const struct snd_kcontrol_new cs42l73_snd_controls[] = {
302 	SOC_DOUBLE_R_SX_TLV("Headphone Analog Playback Volume",
303 			CS42L73_HPAAVOL, CS42L73_HPBAVOL, 0,
304 			0x41, 0x4B, hpaloa_tlv),
305 
306 	SOC_DOUBLE_R_SX_TLV("LineOut Analog Playback Volume", CS42L73_LOAAVOL,
307 			CS42L73_LOBAVOL, 0, 0x41, 0x4B, hpaloa_tlv),
308 
309 	SOC_DOUBLE_R_SX_TLV("Input PGA Analog Volume", CS42L73_MICAPREPGAAVOL,
310 			CS42L73_MICBPREPGABVOL, 0, 0x34,
311 			0x24, micpga_tlv),
312 
313 	SOC_DOUBLE_R("MIC Preamp Switch", CS42L73_MICAPREPGAAVOL,
314 			CS42L73_MICBPREPGABVOL, 6, 1, 1),
315 
316 	SOC_DOUBLE_R_SX_TLV("Input Path Digital Volume", CS42L73_IPADVOL,
317 			CS42L73_IPBDVOL, 0, 0xA0, 0x6C, ipd_tlv),
318 
319 	SOC_DOUBLE_R_SX_TLV("HL Digital Playback Volume",
320 			CS42L73_HLADVOL, CS42L73_HLBDVOL,
321 			0, 0x34, 0xE4, hl_tlv),
322 
323 	SOC_SINGLE_TLV("ADC A Boost Volume",
324 			CS42L73_ADCIPC, 2, 0x01, 1, adc_boost_tlv),
325 
326 	SOC_SINGLE_TLV("ADC B Boost Volume",
327 		       CS42L73_ADCIPC, 6, 0x01, 1, adc_boost_tlv),
328 
329 	SOC_SINGLE_SX_TLV("Speakerphone Digital Volume",
330 			    CS42L73_SPKDVOL, 0, 0x34, 0xE4, hl_tlv),
331 
332 	SOC_SINGLE_SX_TLV("Ear Speaker Digital Volume",
333 			    CS42L73_ESLDVOL, 0, 0x34, 0xE4, hl_tlv),
334 
335 	SOC_DOUBLE_R("Headphone Analog Playback Switch", CS42L73_HPAAVOL,
336 			CS42L73_HPBAVOL, 7, 1, 1),
337 
338 	SOC_DOUBLE_R("LineOut Analog Playback Switch", CS42L73_LOAAVOL,
339 			CS42L73_LOBAVOL, 7, 1, 1),
340 	SOC_DOUBLE("Input Path Digital Switch", CS42L73_ADCIPC, 0, 4, 1, 1),
341 	SOC_DOUBLE("HL Digital Playback Switch", CS42L73_PBDC, 0,
342 			1, 1, 1),
343 	SOC_SINGLE("Speakerphone Digital Playback Switch", CS42L73_PBDC, 2, 1,
344 			1),
345 	SOC_SINGLE("Ear Speaker Digital Playback Switch", CS42L73_PBDC, 3, 1,
346 			1),
347 
348 	SOC_SINGLE("PGA Soft-Ramp Switch", CS42L73_MIOPC, 3, 1, 0),
349 	SOC_SINGLE("Analog Zero Cross Switch", CS42L73_MIOPC, 2, 1, 0),
350 	SOC_SINGLE("Digital Soft-Ramp Switch", CS42L73_MIOPC, 1, 1, 0),
351 	SOC_SINGLE("Analog Output Soft-Ramp Switch", CS42L73_MIOPC, 0, 1, 0),
352 
353 	SOC_DOUBLE("ADC Signal Polarity Switch", CS42L73_ADCIPC, 1, 5, 1,
354 			0),
355 
356 	SOC_SINGLE("HL Limiter Attack Rate", CS42L73_LIMARATEHL, 0, 0x3F,
357 			0),
358 	SOC_SINGLE("HL Limiter Release Rate", CS42L73_LIMRRATEHL, 0,
359 			0x3F, 0),
360 
361 
362 	SOC_SINGLE("HL Limiter Switch", CS42L73_LIMRRATEHL, 7, 1, 0),
363 	SOC_SINGLE("HL Limiter All Channels Switch", CS42L73_LIMRRATEHL, 6, 1,
364 			0),
365 
366 	SOC_SINGLE_TLV("HL Limiter Max Threshold Volume", CS42L73_LMAXHL, 5, 7,
367 			1, limiter_tlv),
368 
369 	SOC_SINGLE_TLV("HL Limiter Cushion Volume", CS42L73_LMAXHL, 2, 7, 1,
370 			limiter_tlv),
371 
372 	SOC_SINGLE("SPK Limiter Attack Rate Volume", CS42L73_LIMARATESPK, 0,
373 			0x3F, 0),
374 	SOC_SINGLE("SPK Limiter Release Rate Volume", CS42L73_LIMRRATESPK, 0,
375 			0x3F, 0),
376 	SOC_SINGLE("SPK Limiter Switch", CS42L73_LIMRRATESPK, 7, 1, 0),
377 	SOC_SINGLE("SPK Limiter All Channels Switch", CS42L73_LIMRRATESPK,
378 			6, 1, 0),
379 	SOC_SINGLE_TLV("SPK Limiter Max Threshold Volume", CS42L73_LMAXSPK, 5,
380 			7, 1, limiter_tlv),
381 
382 	SOC_SINGLE_TLV("SPK Limiter Cushion Volume", CS42L73_LMAXSPK, 2, 7, 1,
383 			limiter_tlv),
384 
385 	SOC_SINGLE("ESL Limiter Attack Rate Volume", CS42L73_LIMARATEESL, 0,
386 			0x3F, 0),
387 	SOC_SINGLE("ESL Limiter Release Rate Volume", CS42L73_LIMRRATEESL, 0,
388 			0x3F, 0),
389 	SOC_SINGLE("ESL Limiter Switch", CS42L73_LIMRRATEESL, 7, 1, 0),
390 	SOC_SINGLE_TLV("ESL Limiter Max Threshold Volume", CS42L73_LMAXESL, 5,
391 			7, 1, limiter_tlv),
392 
393 	SOC_SINGLE_TLV("ESL Limiter Cushion Volume", CS42L73_LMAXESL, 2, 7, 1,
394 			limiter_tlv),
395 
396 	SOC_SINGLE("ALC Attack Rate Volume", CS42L73_ALCARATE, 0, 0x3F, 0),
397 	SOC_SINGLE("ALC Release Rate Volume", CS42L73_ALCRRATE, 0, 0x3F, 0),
398 	SOC_DOUBLE("ALC Switch", CS42L73_ALCARATE, 6, 7, 1, 0),
399 	SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L73_ALCMINMAX, 5, 7, 0,
400 			limiter_tlv),
401 	SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L73_ALCMINMAX, 2, 7, 0,
402 			limiter_tlv),
403 
404 	SOC_DOUBLE("NG Enable Switch", CS42L73_NGCAB, 6, 7, 1, 0),
405 	SOC_SINGLE("NG Boost Switch", CS42L73_NGCAB, 5, 1, 0),
406 	/*
407 	    NG Threshold depends on NG_BOOTSAB, which selects
408 	    between two threshold scales in decibels.
409 	    Set linear values for now ..
410 	*/
411 	SOC_SINGLE("NG Threshold", CS42L73_NGCAB, 2, 7, 0),
412 	SOC_ENUM("NG Delay", ng_delay_enum),
413 
414 	SOC_DOUBLE_R_TLV("XSP-IP Volume",
415 			CS42L73_XSPAIPAA, CS42L73_XSPBIPBA, 0, 0x3F, 1,
416 			attn_tlv),
417 	SOC_DOUBLE_R_TLV("XSP-XSP Volume",
418 			CS42L73_XSPAXSPAA, CS42L73_XSPBXSPBA, 0, 0x3F, 1,
419 			attn_tlv),
420 	SOC_DOUBLE_R_TLV("XSP-ASP Volume",
421 			CS42L73_XSPAASPAA, CS42L73_XSPAASPBA, 0, 0x3F, 1,
422 			attn_tlv),
423 	SOC_DOUBLE_R_TLV("XSP-VSP Volume",
424 			CS42L73_XSPAVSPMA, CS42L73_XSPBVSPMA, 0, 0x3F, 1,
425 			attn_tlv),
426 
427 	SOC_DOUBLE_R_TLV("ASP-IP Volume",
428 			CS42L73_ASPAIPAA, CS42L73_ASPBIPBA, 0, 0x3F, 1,
429 			attn_tlv),
430 	SOC_DOUBLE_R_TLV("ASP-XSP Volume",
431 			CS42L73_ASPAXSPAA, CS42L73_ASPBXSPBA, 0, 0x3F, 1,
432 			attn_tlv),
433 	SOC_DOUBLE_R_TLV("ASP-ASP Volume",
434 			CS42L73_ASPAASPAA, CS42L73_ASPBASPBA, 0, 0x3F, 1,
435 			attn_tlv),
436 	SOC_DOUBLE_R_TLV("ASP-VSP Volume",
437 			CS42L73_ASPAVSPMA, CS42L73_ASPBVSPMA, 0, 0x3F, 1,
438 			attn_tlv),
439 
440 	SOC_DOUBLE_R_TLV("VSP-IP Volume",
441 			CS42L73_VSPAIPAA, CS42L73_VSPBIPBA, 0, 0x3F, 1,
442 			attn_tlv),
443 	SOC_DOUBLE_R_TLV("VSP-XSP Volume",
444 			CS42L73_VSPAXSPAA, CS42L73_VSPBXSPBA, 0, 0x3F, 1,
445 			attn_tlv),
446 	SOC_DOUBLE_R_TLV("VSP-ASP Volume",
447 			CS42L73_VSPAASPAA, CS42L73_VSPBASPBA, 0, 0x3F, 1,
448 			attn_tlv),
449 	SOC_DOUBLE_R_TLV("VSP-VSP Volume",
450 			CS42L73_VSPAVSPMA, CS42L73_VSPBVSPMA, 0, 0x3F, 1,
451 			attn_tlv),
452 
453 	SOC_DOUBLE_R_TLV("HL-IP Volume",
454 			CS42L73_HLAIPAA, CS42L73_HLBIPBA, 0, 0x3F, 1,
455 			attn_tlv),
456 	SOC_DOUBLE_R_TLV("HL-XSP Volume",
457 			CS42L73_HLAXSPAA, CS42L73_HLBXSPBA, 0, 0x3F, 1,
458 			attn_tlv),
459 	SOC_DOUBLE_R_TLV("HL-ASP Volume",
460 			CS42L73_HLAASPAA, CS42L73_HLBASPBA, 0, 0x3F, 1,
461 			attn_tlv),
462 	SOC_DOUBLE_R_TLV("HL-VSP Volume",
463 			CS42L73_HLAVSPMA, CS42L73_HLBVSPMA, 0, 0x3F, 1,
464 			attn_tlv),
465 
466 	SOC_SINGLE_TLV("SPK-IP Mono Volume",
467 			CS42L73_SPKMIPMA, 0, 0x3F, 1, attn_tlv),
468 	SOC_SINGLE_TLV("SPK-XSP Mono Volume",
469 			CS42L73_SPKMXSPA, 0, 0x3F, 1, attn_tlv),
470 	SOC_SINGLE_TLV("SPK-ASP Mono Volume",
471 			CS42L73_SPKMASPA, 0, 0x3F, 1, attn_tlv),
472 	SOC_SINGLE_TLV("SPK-VSP Mono Volume",
473 			CS42L73_SPKMVSPMA, 0, 0x3F, 1, attn_tlv),
474 
475 	SOC_SINGLE_TLV("ESL-IP Mono Volume",
476 			CS42L73_ESLMIPMA, 0, 0x3F, 1, attn_tlv),
477 	SOC_SINGLE_TLV("ESL-XSP Mono Volume",
478 			CS42L73_ESLMXSPA, 0, 0x3F, 1, attn_tlv),
479 	SOC_SINGLE_TLV("ESL-ASP Mono Volume",
480 			CS42L73_ESLMASPA, 0, 0x3F, 1, attn_tlv),
481 	SOC_SINGLE_TLV("ESL-VSP Mono Volume",
482 			CS42L73_ESLMVSPMA, 0, 0x3F, 1, attn_tlv),
483 
484 	SOC_ENUM("IP Digital Swap/Mono Select", ip_swap_enum),
485 
486 	SOC_ENUM("VSPOUT Mono/Stereo Select", vsp_output_mux_enum),
487 	SOC_ENUM("XSPOUT Mono/Stereo Select", xsp_output_mux_enum),
488 };
489 
490 static int cs42l73_spklo_spk_amp_event(struct snd_soc_dapm_widget *w,
491 	struct snd_kcontrol *kcontrol, int event)
492 {
493 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
494 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
495 	switch (event) {
496 	case SND_SOC_DAPM_POST_PMD:
497 		/* 150 ms delay between setting PDN and MCLKDIS */
498 		priv->shutdwn_delay = 150;
499 		break;
500 	default:
501 		pr_err("Invalid event = 0x%x\n", event);
502 	}
503 	return 0;
504 }
505 
506 static int cs42l73_ear_amp_event(struct snd_soc_dapm_widget *w,
507 	struct snd_kcontrol *kcontrol, int event)
508 {
509 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
510 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
511 	switch (event) {
512 	case SND_SOC_DAPM_POST_PMD:
513 		/* 50 ms delay between setting PDN and MCLKDIS */
514 		if (priv->shutdwn_delay < 50)
515 			priv->shutdwn_delay = 50;
516 		break;
517 	default:
518 		pr_err("Invalid event = 0x%x\n", event);
519 	}
520 	return 0;
521 }
522 
523 
524 static int cs42l73_hp_amp_event(struct snd_soc_dapm_widget *w,
525 	struct snd_kcontrol *kcontrol, int event)
526 {
527 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
528 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
529 	switch (event) {
530 	case SND_SOC_DAPM_POST_PMD:
531 		/* 30 ms delay between setting PDN and MCLKDIS */
532 		if (priv->shutdwn_delay < 30)
533 			priv->shutdwn_delay = 30;
534 		break;
535 	default:
536 		pr_err("Invalid event = 0x%x\n", event);
537 	}
538 	return 0;
539 }
540 
541 static const struct snd_soc_dapm_widget cs42l73_dapm_widgets[] = {
542 	SND_SOC_DAPM_INPUT("DMICA"),
543 	SND_SOC_DAPM_INPUT("DMICB"),
544 	SND_SOC_DAPM_INPUT("LINEINA"),
545 	SND_SOC_DAPM_INPUT("LINEINB"),
546 	SND_SOC_DAPM_INPUT("MIC1"),
547 	SND_SOC_DAPM_SUPPLY("MIC1 Bias", CS42L73_PWRCTL2, 6, 1, NULL, 0),
548 	SND_SOC_DAPM_INPUT("MIC2"),
549 	SND_SOC_DAPM_SUPPLY("MIC2 Bias", CS42L73_PWRCTL2, 7, 1, NULL, 0),
550 
551 	SND_SOC_DAPM_AIF_OUT("XSPOUTL", NULL,  0,
552 			CS42L73_PWRCTL2, 1, 1),
553 	SND_SOC_DAPM_AIF_OUT("XSPOUTR", NULL,  0,
554 			CS42L73_PWRCTL2, 1, 1),
555 	SND_SOC_DAPM_AIF_OUT("ASPOUTL", NULL,  0,
556 			CS42L73_PWRCTL2, 3, 1),
557 	SND_SOC_DAPM_AIF_OUT("ASPOUTR", NULL,  0,
558 			CS42L73_PWRCTL2, 3, 1),
559 	SND_SOC_DAPM_AIF_OUT("VSPINOUT", NULL,  0,
560 			CS42L73_PWRCTL2, 4, 1),
561 
562 	SND_SOC_DAPM_PGA("PGA Left", SND_SOC_NOPM, 0, 0, NULL, 0),
563 	SND_SOC_DAPM_PGA("PGA Right", SND_SOC_NOPM, 0, 0, NULL, 0),
564 
565 	SND_SOC_DAPM_MUX("PGA Left Mux", SND_SOC_NOPM, 0, 0, &pgaa_mux),
566 	SND_SOC_DAPM_MUX("PGA Right Mux", SND_SOC_NOPM, 0, 0, &pgab_mux),
567 
568 	SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L73_PWRCTL1, 7, 1),
569 	SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L73_PWRCTL1, 5, 1),
570 	SND_SOC_DAPM_ADC("DMIC Left", NULL, CS42L73_PWRCTL1, 6, 1),
571 	SND_SOC_DAPM_ADC("DMIC Right", NULL, CS42L73_PWRCTL1, 4, 1),
572 
573 	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Left Capture", SND_SOC_NOPM,
574 			 0, 0, input_left_mixer,
575 			 ARRAY_SIZE(input_left_mixer)),
576 
577 	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Right Capture", SND_SOC_NOPM,
578 			0, 0, input_right_mixer,
579 			ARRAY_SIZE(input_right_mixer)),
580 
581 	SND_SOC_DAPM_MIXER("ASPL Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
582 	SND_SOC_DAPM_MIXER("ASPR Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
583 	SND_SOC_DAPM_MIXER("XSPL Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
584 	SND_SOC_DAPM_MIXER("XSPR Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
585 	SND_SOC_DAPM_MIXER("VSP Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
586 
587 	SND_SOC_DAPM_AIF_IN("XSPINL", NULL, 0,
588 				CS42L73_PWRCTL2, 0, 1),
589 	SND_SOC_DAPM_AIF_IN("XSPINR", NULL, 0,
590 				CS42L73_PWRCTL2, 0, 1),
591 	SND_SOC_DAPM_AIF_IN("XSPINM", NULL, 0,
592 				CS42L73_PWRCTL2, 0, 1),
593 
594 	SND_SOC_DAPM_AIF_IN("ASPINL", NULL, 0,
595 				CS42L73_PWRCTL2, 2, 1),
596 	SND_SOC_DAPM_AIF_IN("ASPINR", NULL, 0,
597 				CS42L73_PWRCTL2, 2, 1),
598 	SND_SOC_DAPM_AIF_IN("ASPINM", NULL, 0,
599 				CS42L73_PWRCTL2, 2, 1),
600 
601 	SND_SOC_DAPM_AIF_IN("VSPINOUT", NULL, 0,
602 				CS42L73_PWRCTL2, 4, 1),
603 
604 	SND_SOC_DAPM_MIXER("HL Left Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
605 	SND_SOC_DAPM_MIXER("HL Right Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
606 	SND_SOC_DAPM_MIXER("SPK Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
607 	SND_SOC_DAPM_MIXER("ESL Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
608 
609 	SND_SOC_DAPM_MUX("ESL-XSP Mux", SND_SOC_NOPM,
610 			 0, 0, &esl_xsp_mixer),
611 
612 	SND_SOC_DAPM_MUX("ESL-ASP Mux", SND_SOC_NOPM,
613 			 0, 0, &esl_asp_mixer),
614 
615 	SND_SOC_DAPM_MUX("SPK-ASP Mux", SND_SOC_NOPM,
616 			 0, 0, &spk_asp_mixer),
617 
618 	SND_SOC_DAPM_MUX("SPK-XSP Mux", SND_SOC_NOPM,
619 			 0, 0, &spk_xsp_mixer),
620 
621 	SND_SOC_DAPM_PGA("HL Left DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
622 	SND_SOC_DAPM_PGA("HL Right DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
623 	SND_SOC_DAPM_PGA("SPK DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
624 	SND_SOC_DAPM_PGA("ESL DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
625 
626 	SND_SOC_DAPM_SWITCH_E("HP Amp",  CS42L73_PWRCTL3, 0, 1,
627 			    &hp_amp_ctl, cs42l73_hp_amp_event,
628 			SND_SOC_DAPM_POST_PMD),
629 	SND_SOC_DAPM_SWITCH("LO Amp", CS42L73_PWRCTL3, 1, 1,
630 			    &lo_amp_ctl),
631 	SND_SOC_DAPM_SWITCH_E("SPK Amp", CS42L73_PWRCTL3, 2, 1,
632 			&spk_amp_ctl, cs42l73_spklo_spk_amp_event,
633 			SND_SOC_DAPM_POST_PMD),
634 	SND_SOC_DAPM_SWITCH_E("EAR Amp", CS42L73_PWRCTL3, 3, 1,
635 			    &ear_amp_ctl, cs42l73_ear_amp_event,
636 			SND_SOC_DAPM_POST_PMD),
637 	SND_SOC_DAPM_SWITCH_E("SPKLO Amp", CS42L73_PWRCTL3, 4, 1,
638 			    &spklo_amp_ctl, cs42l73_spklo_spk_amp_event,
639 			SND_SOC_DAPM_POST_PMD),
640 
641 	SND_SOC_DAPM_OUTPUT("HPOUTA"),
642 	SND_SOC_DAPM_OUTPUT("HPOUTB"),
643 	SND_SOC_DAPM_OUTPUT("LINEOUTA"),
644 	SND_SOC_DAPM_OUTPUT("LINEOUTB"),
645 	SND_SOC_DAPM_OUTPUT("EAROUT"),
646 	SND_SOC_DAPM_OUTPUT("SPKOUT"),
647 	SND_SOC_DAPM_OUTPUT("SPKLINEOUT"),
648 };
649 
650 static const struct snd_soc_dapm_route cs42l73_audio_map[] = {
651 
652 	/* SPKLO EARSPK Paths */
653 	{"EAROUT", NULL, "EAR Amp"},
654 	{"SPKLINEOUT", NULL, "SPKLO Amp"},
655 
656 	{"EAR Amp", "Switch", "ESL DAC"},
657 	{"SPKLO Amp", "Switch", "ESL DAC"},
658 
659 	{"ESL DAC", "ESL-ASP Mono Volume", "ESL Mixer"},
660 	{"ESL DAC", "ESL-XSP Mono Volume", "ESL Mixer"},
661 	{"ESL DAC", "ESL-VSP Mono Volume", "VSPINOUT"},
662 	/* Loopback */
663 	{"ESL DAC", "ESL-IP Mono Volume", "Input Left Capture"},
664 	{"ESL DAC", "ESL-IP Mono Volume", "Input Right Capture"},
665 
666 	{"ESL Mixer", NULL, "ESL-ASP Mux"},
667 	{"ESL Mixer", NULL, "ESL-XSP Mux"},
668 
669 	{"ESL-ASP Mux", "Left", "ASPINL"},
670 	{"ESL-ASP Mux", "Right", "ASPINR"},
671 	{"ESL-ASP Mux", "Mono Mix", "ASPINM"},
672 
673 	{"ESL-XSP Mux", "Left", "XSPINL"},
674 	{"ESL-XSP Mux", "Right", "XSPINR"},
675 	{"ESL-XSP Mux", "Mono Mix", "XSPINM"},
676 
677 	/* Speakerphone Paths */
678 	{"SPKOUT", NULL, "SPK Amp"},
679 	{"SPK Amp", "Switch", "SPK DAC"},
680 
681 	{"SPK DAC", "SPK-ASP Mono Volume", "SPK Mixer"},
682 	{"SPK DAC", "SPK-XSP Mono Volume", "SPK Mixer"},
683 	{"SPK DAC", "SPK-VSP Mono Volume", "VSPINOUT"},
684 	/* Loopback */
685 	{"SPK DAC", "SPK-IP Mono Volume", "Input Left Capture"},
686 	{"SPK DAC", "SPK-IP Mono Volume", "Input Right Capture"},
687 
688 	{"SPK Mixer", NULL, "SPK-ASP Mux"},
689 	{"SPK Mixer", NULL, "SPK-XSP Mux"},
690 
691 	{"SPK-ASP Mux", "Left", "ASPINL"},
692 	{"SPK-ASP Mux", "Mono Mix", "ASPINM"},
693 	{"SPK-ASP Mux", "Right", "ASPINR"},
694 
695 	{"SPK-XSP Mux", "Left", "XSPINL"},
696 	{"SPK-XSP Mux", "Mono Mix", "XSPINM"},
697 	{"SPK-XSP Mux", "Right", "XSPINR"},
698 
699 	/* HP LineOUT Paths */
700 	{"HPOUTA", NULL, "HP Amp"},
701 	{"HPOUTB", NULL, "HP Amp"},
702 	{"LINEOUTA", NULL, "LO Amp"},
703 	{"LINEOUTB", NULL, "LO Amp"},
704 
705 	{"HP Amp", "Switch", "HL Left DAC"},
706 	{"HP Amp", "Switch", "HL Right DAC"},
707 	{"LO Amp", "Switch", "HL Left DAC"},
708 	{"LO Amp", "Switch", "HL Right DAC"},
709 
710 	{"HL Left DAC", "HL-XSP Volume", "HL Left Mixer"},
711 	{"HL Right DAC", "HL-XSP Volume", "HL Right Mixer"},
712 	{"HL Left DAC", "HL-ASP Volume", "HL Left Mixer"},
713 	{"HL Right DAC", "HL-ASP Volume", "HL Right Mixer"},
714 	{"HL Left DAC", "HL-VSP Volume", "HL Left Mixer"},
715 	{"HL Right DAC", "HL-VSP Volume", "HL Right Mixer"},
716 	/* Loopback */
717 	{"HL Left DAC", "HL-IP Volume", "HL Left Mixer"},
718 	{"HL Right DAC", "HL-IP Volume", "HL Right Mixer"},
719 	{"HL Left Mixer", NULL, "Input Left Capture"},
720 	{"HL Right Mixer", NULL, "Input Right Capture"},
721 
722 	{"HL Left Mixer", NULL, "ASPINL"},
723 	{"HL Right Mixer", NULL, "ASPINR"},
724 	{"HL Left Mixer", NULL, "XSPINL"},
725 	{"HL Right Mixer", NULL, "XSPINR"},
726 	{"HL Left Mixer", NULL, "VSPINOUT"},
727 	{"HL Right Mixer", NULL, "VSPINOUT"},
728 
729 	{"ASPINL", NULL, "ASP Playback"},
730 	{"ASPINM", NULL, "ASP Playback"},
731 	{"ASPINR", NULL, "ASP Playback"},
732 	{"XSPINL", NULL, "XSP Playback"},
733 	{"XSPINM", NULL, "XSP Playback"},
734 	{"XSPINR", NULL, "XSP Playback"},
735 	{"VSPINOUT", NULL, "VSP Playback"},
736 
737 	/* Capture Paths */
738 	{"MIC1", NULL, "MIC1 Bias"},
739 	{"PGA Left Mux", "Mic 1", "MIC1"},
740 	{"MIC2", NULL, "MIC2 Bias"},
741 	{"PGA Right Mux", "Mic 2", "MIC2"},
742 
743 	{"PGA Left Mux", "Line A", "LINEINA"},
744 	{"PGA Right Mux", "Line B", "LINEINB"},
745 
746 	{"PGA Left", NULL, "PGA Left Mux"},
747 	{"PGA Right", NULL, "PGA Right Mux"},
748 
749 	{"ADC Left", NULL, "PGA Left"},
750 	{"ADC Right", NULL, "PGA Right"},
751 	{"DMIC Left", NULL, "DMICA"},
752 	{"DMIC Right", NULL, "DMICB"},
753 
754 	{"Input Left Capture", "ADC Left Input", "ADC Left"},
755 	{"Input Right Capture", "ADC Right Input", "ADC Right"},
756 	{"Input Left Capture", "DMIC Left Input", "DMIC Left"},
757 	{"Input Right Capture", "DMIC Right Input", "DMIC Right"},
758 
759 	/* Audio Capture */
760 	{"ASPL Output Mixer", NULL, "Input Left Capture"},
761 	{"ASPR Output Mixer", NULL, "Input Right Capture"},
762 
763 	{"ASPOUTL", "ASP-IP Volume", "ASPL Output Mixer"},
764 	{"ASPOUTR", "ASP-IP Volume", "ASPR Output Mixer"},
765 
766 	/* Auxillary Capture */
767 	{"XSPL Output Mixer", NULL, "Input Left Capture"},
768 	{"XSPR Output Mixer", NULL, "Input Right Capture"},
769 
770 	{"XSPOUTL", "XSP-IP Volume", "XSPL Output Mixer"},
771 	{"XSPOUTR", "XSP-IP Volume", "XSPR Output Mixer"},
772 
773 	{"XSPOUTL", NULL, "XSPL Output Mixer"},
774 	{"XSPOUTR", NULL, "XSPR Output Mixer"},
775 
776 	/* Voice Capture */
777 	{"VSP Output Mixer", NULL, "Input Left Capture"},
778 	{"VSP Output Mixer", NULL, "Input Right Capture"},
779 
780 	{"VSPINOUT", "VSP-IP Volume", "VSP Output Mixer"},
781 
782 	{"VSPINOUT", NULL, "VSP Output Mixer"},
783 
784 	{"ASP Capture", NULL, "ASPOUTL"},
785 	{"ASP Capture", NULL, "ASPOUTR"},
786 	{"XSP Capture", NULL, "XSPOUTL"},
787 	{"XSP Capture", NULL, "XSPOUTR"},
788 	{"VSP Capture", NULL, "VSPINOUT"},
789 };
790 
791 struct cs42l73_mclk_div {
792 	u32 mclk;
793 	u32 srate;
794 	u8 mmcc;
795 };
796 
797 static const struct cs42l73_mclk_div cs42l73_mclk_coeffs[] = {
798 	/* MCLK, Sample Rate, xMMCC[5:0] */
799 	{5644800, 11025, 0x30},
800 	{5644800, 22050, 0x20},
801 	{5644800, 44100, 0x10},
802 
803 	{6000000,  8000, 0x39},
804 	{6000000, 11025, 0x33},
805 	{6000000, 12000, 0x31},
806 	{6000000, 16000, 0x29},
807 	{6000000, 22050, 0x23},
808 	{6000000, 24000, 0x21},
809 	{6000000, 32000, 0x19},
810 	{6000000, 44100, 0x13},
811 	{6000000, 48000, 0x11},
812 
813 	{6144000,  8000, 0x38},
814 	{6144000, 12000, 0x30},
815 	{6144000, 16000, 0x28},
816 	{6144000, 24000, 0x20},
817 	{6144000, 32000, 0x18},
818 	{6144000, 48000, 0x10},
819 
820 	{6500000,  8000, 0x3C},
821 	{6500000, 11025, 0x35},
822 	{6500000, 12000, 0x34},
823 	{6500000, 16000, 0x2C},
824 	{6500000, 22050, 0x25},
825 	{6500000, 24000, 0x24},
826 	{6500000, 32000, 0x1C},
827 	{6500000, 44100, 0x15},
828 	{6500000, 48000, 0x14},
829 
830 	{6400000,  8000, 0x3E},
831 	{6400000, 11025, 0x37},
832 	{6400000, 12000, 0x36},
833 	{6400000, 16000, 0x2E},
834 	{6400000, 22050, 0x27},
835 	{6400000, 24000, 0x26},
836 	{6400000, 32000, 0x1E},
837 	{6400000, 44100, 0x17},
838 	{6400000, 48000, 0x16},
839 };
840 
841 struct cs42l73_mclkx_div {
842 	u32 mclkx;
843 	u8 ratio;
844 	u8 mclkdiv;
845 };
846 
847 static const struct cs42l73_mclkx_div cs42l73_mclkx_coeffs[] = {
848 	{5644800,  1, 0},	/* 5644800 */
849 	{6000000,  1, 0},	/* 6000000 */
850 	{6144000,  1, 0},	/* 6144000 */
851 	{11289600, 2, 2},	/* 5644800 */
852 	{12288000, 2, 2},	/* 6144000 */
853 	{12000000, 2, 2},	/* 6000000 */
854 	{13000000, 2, 2},	/* 6500000 */
855 	{19200000, 3, 3},	/* 6400000 */
856 	{24000000, 4, 4},	/* 6000000 */
857 	{26000000, 4, 4},	/* 6500000 */
858 	{38400000, 6, 5}	/* 6400000 */
859 };
860 
861 static int cs42l73_get_mclkx_coeff(int mclkx)
862 {
863 	int i;
864 
865 	for (i = 0; i < ARRAY_SIZE(cs42l73_mclkx_coeffs); i++) {
866 		if (cs42l73_mclkx_coeffs[i].mclkx == mclkx)
867 			return i;
868 	}
869 	return -EINVAL;
870 }
871 
872 static int cs42l73_get_mclk_coeff(int mclk, int srate)
873 {
874 	int i;
875 
876 	for (i = 0; i < ARRAY_SIZE(cs42l73_mclk_coeffs); i++) {
877 		if (cs42l73_mclk_coeffs[i].mclk == mclk &&
878 		    cs42l73_mclk_coeffs[i].srate == srate)
879 			return i;
880 	}
881 	return -EINVAL;
882 
883 }
884 
885 static int cs42l73_set_mclk(struct snd_soc_dai *dai, unsigned int freq)
886 {
887 	struct snd_soc_component *component = dai->component;
888 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
889 
890 	int mclkx_coeff;
891 	u32 mclk = 0;
892 	u8 dmmcc = 0;
893 
894 	/* MCLKX -> MCLK */
895 	mclkx_coeff = cs42l73_get_mclkx_coeff(freq);
896 	if (mclkx_coeff < 0)
897 		return mclkx_coeff;
898 
899 	mclk = cs42l73_mclkx_coeffs[mclkx_coeff].mclkx /
900 		cs42l73_mclkx_coeffs[mclkx_coeff].ratio;
901 
902 	dev_dbg(component->dev, "MCLK%u %u  <-> internal MCLK %u\n",
903 		 priv->mclksel + 1, cs42l73_mclkx_coeffs[mclkx_coeff].mclkx,
904 		 mclk);
905 
906 	dmmcc = (priv->mclksel << 4) |
907 		(cs42l73_mclkx_coeffs[mclkx_coeff].mclkdiv << 1);
908 
909 	snd_soc_component_write(component, CS42L73_DMMCC, dmmcc);
910 
911 	priv->sysclk = mclkx_coeff;
912 	priv->mclk = mclk;
913 
914 	return 0;
915 }
916 
917 static int cs42l73_set_sysclk(struct snd_soc_dai *dai,
918 			      int clk_id, unsigned int freq, int dir)
919 {
920 	struct snd_soc_component *component = dai->component;
921 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
922 
923 	switch (clk_id) {
924 	case CS42L73_CLKID_MCLK1:
925 		break;
926 	case CS42L73_CLKID_MCLK2:
927 		break;
928 	default:
929 		return -EINVAL;
930 	}
931 
932 	if ((cs42l73_set_mclk(dai, freq)) < 0) {
933 		dev_err(component->dev, "Unable to set MCLK for dai %s\n",
934 			dai->name);
935 		return -EINVAL;
936 	}
937 
938 	priv->mclksel = clk_id;
939 
940 	return 0;
941 }
942 
943 static int cs42l73_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
944 {
945 	struct snd_soc_component *component = codec_dai->component;
946 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
947 	u8 id = codec_dai->id;
948 	unsigned int inv, format;
949 	u8 spc, mmcc;
950 
951 	spc = snd_soc_component_read32(component, CS42L73_SPC(id));
952 	mmcc = snd_soc_component_read32(component, CS42L73_MMCC(id));
953 
954 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
955 	case SND_SOC_DAIFMT_CBM_CFM:
956 		mmcc |= CS42L73_MS_MASTER;
957 		break;
958 
959 	case SND_SOC_DAIFMT_CBS_CFS:
960 		mmcc &= ~CS42L73_MS_MASTER;
961 		break;
962 
963 	default:
964 		return -EINVAL;
965 	}
966 
967 	format = (fmt & SND_SOC_DAIFMT_FORMAT_MASK);
968 	inv = (fmt & SND_SOC_DAIFMT_INV_MASK);
969 
970 	switch (format) {
971 	case SND_SOC_DAIFMT_I2S:
972 		spc &= ~CS42L73_SPDIF_PCM;
973 		break;
974 	case SND_SOC_DAIFMT_DSP_A:
975 	case SND_SOC_DAIFMT_DSP_B:
976 		if (mmcc & CS42L73_MS_MASTER) {
977 			dev_err(component->dev,
978 				"PCM format in slave mode only\n");
979 			return -EINVAL;
980 		}
981 		if (id == CS42L73_ASP) {
982 			dev_err(component->dev,
983 				"PCM format is not supported on ASP port\n");
984 			return -EINVAL;
985 		}
986 		spc |= CS42L73_SPDIF_PCM;
987 		break;
988 	default:
989 		return -EINVAL;
990 	}
991 
992 	if (spc & CS42L73_SPDIF_PCM) {
993 		/* Clear PCM mode, clear PCM_BIT_ORDER bit for MSB->LSB */
994 		spc &= ~(CS42L73_PCM_MODE_MASK | CS42L73_PCM_BIT_ORDER);
995 		switch (format) {
996 		case SND_SOC_DAIFMT_DSP_B:
997 			if (inv == SND_SOC_DAIFMT_IB_IF)
998 				spc |= CS42L73_PCM_MODE0;
999 			if (inv == SND_SOC_DAIFMT_IB_NF)
1000 				spc |= CS42L73_PCM_MODE1;
1001 		break;
1002 		case SND_SOC_DAIFMT_DSP_A:
1003 			if (inv == SND_SOC_DAIFMT_IB_IF)
1004 				spc |= CS42L73_PCM_MODE1;
1005 			break;
1006 		default:
1007 			return -EINVAL;
1008 		}
1009 	}
1010 
1011 	priv->config[id].spc = spc;
1012 	priv->config[id].mmcc = mmcc;
1013 
1014 	return 0;
1015 }
1016 
1017 static const unsigned int cs42l73_asrc_rates[] = {
1018 	8000, 11025, 12000, 16000, 22050,
1019 	24000, 32000, 44100, 48000
1020 };
1021 
1022 static unsigned int cs42l73_get_xspfs_coeff(u32 rate)
1023 {
1024 	int i;
1025 	for (i = 0; i < ARRAY_SIZE(cs42l73_asrc_rates); i++) {
1026 		if (cs42l73_asrc_rates[i] == rate)
1027 			return i + 1;
1028 	}
1029 	return 0;		/* 0 = Don't know */
1030 }
1031 
1032 static void cs42l73_update_asrc(struct snd_soc_component *component, int id, int srate)
1033 {
1034 	u8 spfs = 0;
1035 
1036 	if (srate > 0)
1037 		spfs = cs42l73_get_xspfs_coeff(srate);
1038 
1039 	switch (id) {
1040 	case CS42L73_XSP:
1041 		snd_soc_component_update_bits(component, CS42L73_VXSPFS, 0x0f, spfs);
1042 	break;
1043 	case CS42L73_ASP:
1044 		snd_soc_component_update_bits(component, CS42L73_ASPC, 0x3c, spfs << 2);
1045 	break;
1046 	case CS42L73_VSP:
1047 		snd_soc_component_update_bits(component, CS42L73_VXSPFS, 0xf0, spfs << 4);
1048 	break;
1049 	default:
1050 	break;
1051 	}
1052 }
1053 
1054 static int cs42l73_pcm_hw_params(struct snd_pcm_substream *substream,
1055 				 struct snd_pcm_hw_params *params,
1056 				 struct snd_soc_dai *dai)
1057 {
1058 	struct snd_soc_component *component = dai->component;
1059 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
1060 	int id = dai->id;
1061 	int mclk_coeff;
1062 	int srate = params_rate(params);
1063 
1064 	if (priv->config[id].mmcc & CS42L73_MS_MASTER) {
1065 		/* CS42L73 Master */
1066 		/* MCLK -> srate */
1067 		mclk_coeff =
1068 		    cs42l73_get_mclk_coeff(priv->mclk, srate);
1069 
1070 		if (mclk_coeff < 0)
1071 			return -EINVAL;
1072 
1073 		dev_dbg(component->dev,
1074 			 "DAI[%d]: MCLK %u, srate %u, MMCC[5:0] = %x\n",
1075 			 id, priv->mclk, srate,
1076 			 cs42l73_mclk_coeffs[mclk_coeff].mmcc);
1077 
1078 		priv->config[id].mmcc &= 0xC0;
1079 		priv->config[id].mmcc |= cs42l73_mclk_coeffs[mclk_coeff].mmcc;
1080 		priv->config[id].spc &= 0xFC;
1081 		/* Use SCLK=64*Fs if internal MCLK >= 6.4MHz */
1082 		if (priv->mclk >= 6400000)
1083 			priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
1084 		else
1085 			priv->config[id].spc |= CS42L73_MCK_SCLK_MCLK;
1086 	} else {
1087 		/* CS42L73 Slave */
1088 		priv->config[id].spc &= 0xFC;
1089 		priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
1090 	}
1091 	/* Update ASRCs */
1092 	priv->config[id].srate = srate;
1093 
1094 	snd_soc_component_write(component, CS42L73_SPC(id), priv->config[id].spc);
1095 	snd_soc_component_write(component, CS42L73_MMCC(id), priv->config[id].mmcc);
1096 
1097 	cs42l73_update_asrc(component, id, srate);
1098 
1099 	return 0;
1100 }
1101 
1102 static int cs42l73_set_bias_level(struct snd_soc_component *component,
1103 				  enum snd_soc_bias_level level)
1104 {
1105 	struct cs42l73_private *cs42l73 = snd_soc_component_get_drvdata(component);
1106 
1107 	switch (level) {
1108 	case SND_SOC_BIAS_ON:
1109 		snd_soc_component_update_bits(component, CS42L73_DMMCC, CS42L73_MCLKDIS, 0);
1110 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 0);
1111 		break;
1112 
1113 	case SND_SOC_BIAS_PREPARE:
1114 		break;
1115 
1116 	case SND_SOC_BIAS_STANDBY:
1117 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1118 			regcache_cache_only(cs42l73->regmap, false);
1119 			regcache_sync(cs42l73->regmap);
1120 		}
1121 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 1);
1122 		break;
1123 
1124 	case SND_SOC_BIAS_OFF:
1125 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 1);
1126 		if (cs42l73->shutdwn_delay > 0) {
1127 			mdelay(cs42l73->shutdwn_delay);
1128 			cs42l73->shutdwn_delay = 0;
1129 		} else {
1130 			mdelay(15); /* Min amount of time requred to power
1131 				     * down.
1132 				     */
1133 		}
1134 		snd_soc_component_update_bits(component, CS42L73_DMMCC, CS42L73_MCLKDIS, 1);
1135 		break;
1136 	}
1137 	return 0;
1138 }
1139 
1140 static int cs42l73_set_tristate(struct snd_soc_dai *dai, int tristate)
1141 {
1142 	struct snd_soc_component *component = dai->component;
1143 	int id = dai->id;
1144 
1145 	return snd_soc_component_update_bits(component, CS42L73_SPC(id), CS42L73_SP_3ST,
1146 				   tristate << 7);
1147 }
1148 
1149 static const struct snd_pcm_hw_constraint_list constraints_12_24 = {
1150 	.count  = ARRAY_SIZE(cs42l73_asrc_rates),
1151 	.list   = cs42l73_asrc_rates,
1152 };
1153 
1154 static int cs42l73_pcm_startup(struct snd_pcm_substream *substream,
1155 			       struct snd_soc_dai *dai)
1156 {
1157 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1158 					SNDRV_PCM_HW_PARAM_RATE,
1159 					&constraints_12_24);
1160 	return 0;
1161 }
1162 
1163 
1164 #define CS42L73_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1165 	SNDRV_PCM_FMTBIT_S24_LE)
1166 
1167 static const struct snd_soc_dai_ops cs42l73_ops = {
1168 	.startup = cs42l73_pcm_startup,
1169 	.hw_params = cs42l73_pcm_hw_params,
1170 	.set_fmt = cs42l73_set_dai_fmt,
1171 	.set_sysclk = cs42l73_set_sysclk,
1172 	.set_tristate = cs42l73_set_tristate,
1173 };
1174 
1175 static struct snd_soc_dai_driver cs42l73_dai[] = {
1176 	{
1177 		.name = "cs42l73-xsp",
1178 		.id = CS42L73_XSP,
1179 		.playback = {
1180 			.stream_name = "XSP Playback",
1181 			.channels_min = 1,
1182 			.channels_max = 2,
1183 			.rates = SNDRV_PCM_RATE_KNOT,
1184 			.formats = CS42L73_FORMATS,
1185 		},
1186 		.capture = {
1187 			.stream_name = "XSP Capture",
1188 			.channels_min = 1,
1189 			.channels_max = 2,
1190 			.rates = SNDRV_PCM_RATE_KNOT,
1191 			.formats = CS42L73_FORMATS,
1192 		},
1193 		.ops = &cs42l73_ops,
1194 		.symmetric_rates = 1,
1195 	 },
1196 	{
1197 		.name = "cs42l73-asp",
1198 		.id = CS42L73_ASP,
1199 		.playback = {
1200 			.stream_name = "ASP Playback",
1201 			.channels_min = 2,
1202 			.channels_max = 2,
1203 			.rates = SNDRV_PCM_RATE_KNOT,
1204 			.formats = CS42L73_FORMATS,
1205 		},
1206 		.capture = {
1207 			.stream_name = "ASP Capture",
1208 			.channels_min = 2,
1209 			.channels_max = 2,
1210 			.rates = SNDRV_PCM_RATE_KNOT,
1211 			.formats = CS42L73_FORMATS,
1212 		},
1213 		.ops = &cs42l73_ops,
1214 		.symmetric_rates = 1,
1215 	 },
1216 	{
1217 		.name = "cs42l73-vsp",
1218 		.id = CS42L73_VSP,
1219 		.playback = {
1220 			.stream_name = "VSP Playback",
1221 			.channels_min = 1,
1222 			.channels_max = 2,
1223 			.rates = SNDRV_PCM_RATE_KNOT,
1224 			.formats = CS42L73_FORMATS,
1225 		},
1226 		.capture = {
1227 			.stream_name = "VSP Capture",
1228 			.channels_min = 1,
1229 			.channels_max = 2,
1230 			.rates = SNDRV_PCM_RATE_KNOT,
1231 			.formats = CS42L73_FORMATS,
1232 		},
1233 		.ops = &cs42l73_ops,
1234 		.symmetric_rates = 1,
1235 	 }
1236 };
1237 
1238 static int cs42l73_probe(struct snd_soc_component *component)
1239 {
1240 	struct cs42l73_private *cs42l73 = snd_soc_component_get_drvdata(component);
1241 
1242 	/* Set Charge Pump Frequency */
1243 	if (cs42l73->pdata.chgfreq)
1244 		snd_soc_component_update_bits(component, CS42L73_CPFCHC,
1245 				    CS42L73_CHARGEPUMP_MASK,
1246 					cs42l73->pdata.chgfreq << 4);
1247 
1248 	/* MCLK1 as master clk */
1249 	cs42l73->mclksel = CS42L73_CLKID_MCLK1;
1250 	cs42l73->mclk = 0;
1251 
1252 	return 0;
1253 }
1254 
1255 static const struct snd_soc_component_driver soc_component_dev_cs42l73 = {
1256 	.probe			= cs42l73_probe,
1257 	.set_bias_level		= cs42l73_set_bias_level,
1258 	.controls		= cs42l73_snd_controls,
1259 	.num_controls		= ARRAY_SIZE(cs42l73_snd_controls),
1260 	.dapm_widgets		= cs42l73_dapm_widgets,
1261 	.num_dapm_widgets	= ARRAY_SIZE(cs42l73_dapm_widgets),
1262 	.dapm_routes		= cs42l73_audio_map,
1263 	.num_dapm_routes	= ARRAY_SIZE(cs42l73_audio_map),
1264 	.suspend_bias_off	= 1,
1265 	.idle_bias_on		= 1,
1266 	.use_pmdown_time	= 1,
1267 	.endianness		= 1,
1268 	.non_legacy_dai_naming	= 1,
1269 };
1270 
1271 static const struct regmap_config cs42l73_regmap = {
1272 	.reg_bits = 8,
1273 	.val_bits = 8,
1274 
1275 	.max_register = CS42L73_MAX_REGISTER,
1276 	.reg_defaults = cs42l73_reg_defaults,
1277 	.num_reg_defaults = ARRAY_SIZE(cs42l73_reg_defaults),
1278 	.volatile_reg = cs42l73_volatile_register,
1279 	.readable_reg = cs42l73_readable_register,
1280 	.cache_type = REGCACHE_RBTREE,
1281 };
1282 
1283 static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
1284 			     const struct i2c_device_id *id)
1285 {
1286 	struct cs42l73_private *cs42l73;
1287 	struct cs42l73_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
1288 	int ret;
1289 	unsigned int devid = 0;
1290 	unsigned int reg;
1291 	u32 val32;
1292 
1293 	cs42l73 = devm_kzalloc(&i2c_client->dev, sizeof(*cs42l73), GFP_KERNEL);
1294 	if (!cs42l73)
1295 		return -ENOMEM;
1296 
1297 	cs42l73->regmap = devm_regmap_init_i2c(i2c_client, &cs42l73_regmap);
1298 	if (IS_ERR(cs42l73->regmap)) {
1299 		ret = PTR_ERR(cs42l73->regmap);
1300 		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1301 		return ret;
1302 	}
1303 
1304 	if (pdata) {
1305 		cs42l73->pdata = *pdata;
1306 	} else {
1307 		pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata),
1308 				     GFP_KERNEL);
1309 		if (!pdata)
1310 			return -ENOMEM;
1311 
1312 		if (i2c_client->dev.of_node) {
1313 			if (of_property_read_u32(i2c_client->dev.of_node,
1314 				"chgfreq", &val32) >= 0)
1315 				pdata->chgfreq = val32;
1316 		}
1317 		pdata->reset_gpio = of_get_named_gpio(i2c_client->dev.of_node,
1318 						"reset-gpio", 0);
1319 		cs42l73->pdata = *pdata;
1320 	}
1321 
1322 	i2c_set_clientdata(i2c_client, cs42l73);
1323 
1324 	if (cs42l73->pdata.reset_gpio) {
1325 		ret = devm_gpio_request_one(&i2c_client->dev,
1326 					    cs42l73->pdata.reset_gpio,
1327 					    GPIOF_OUT_INIT_HIGH,
1328 					    "CS42L73 /RST");
1329 		if (ret < 0) {
1330 			dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
1331 				cs42l73->pdata.reset_gpio, ret);
1332 			return ret;
1333 		}
1334 		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0);
1335 		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 1);
1336 	}
1337 
1338 	/* initialize codec */
1339 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_AB, &reg);
1340 	devid = (reg & 0xFF) << 12;
1341 
1342 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_CD, &reg);
1343 	devid |= (reg & 0xFF) << 4;
1344 
1345 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_E, &reg);
1346 	devid |= (reg & 0xF0) >> 4;
1347 
1348 	if (devid != CS42L73_DEVID) {
1349 		ret = -ENODEV;
1350 		dev_err(&i2c_client->dev,
1351 			"CS42L73 Device ID (%X). Expected %X\n",
1352 			devid, CS42L73_DEVID);
1353 		return ret;
1354 	}
1355 
1356 	ret = regmap_read(cs42l73->regmap, CS42L73_REVID, &reg);
1357 	if (ret < 0) {
1358 		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
1359 		return ret;
1360 	}
1361 
1362 	dev_info(&i2c_client->dev,
1363 		 "Cirrus Logic CS42L73, Revision: %02X\n", reg & 0xFF);
1364 
1365 	ret = devm_snd_soc_register_component(&i2c_client->dev,
1366 			&soc_component_dev_cs42l73, cs42l73_dai,
1367 			ARRAY_SIZE(cs42l73_dai));
1368 	if (ret < 0)
1369 		return ret;
1370 	return 0;
1371 }
1372 
1373 static const struct of_device_id cs42l73_of_match[] = {
1374 	{ .compatible = "cirrus,cs42l73", },
1375 	{},
1376 };
1377 MODULE_DEVICE_TABLE(of, cs42l73_of_match);
1378 
1379 static const struct i2c_device_id cs42l73_id[] = {
1380 	{"cs42l73", 0},
1381 	{}
1382 };
1383 
1384 MODULE_DEVICE_TABLE(i2c, cs42l73_id);
1385 
1386 static struct i2c_driver cs42l73_i2c_driver = {
1387 	.driver = {
1388 		   .name = "cs42l73",
1389 		   .of_match_table = cs42l73_of_match,
1390 		   },
1391 	.id_table = cs42l73_id,
1392 	.probe = cs42l73_i2c_probe,
1393 
1394 };
1395 
1396 module_i2c_driver(cs42l73_i2c_driver);
1397 
1398 MODULE_DESCRIPTION("ASoC CS42L73 driver");
1399 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>");
1400 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
1401 MODULE_LICENSE("GPL");
1402