xref: /openbmc/linux/sound/soc/codecs/cs42l73.c (revision b830f94f)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * cs42l73.c  --  CS42L73 ALSA Soc Audio driver
4  *
5  * Copyright 2011 Cirrus Logic, Inc.
6  *
7  * Authors: Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>
8  *	    Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>
9  */
10 
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/delay.h>
16 #include <linux/of_gpio.h>
17 #include <linux/pm.h>
18 #include <linux/i2c.h>
19 #include <linux/regmap.h>
20 #include <linux/slab.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25 #include <sound/soc-dapm.h>
26 #include <sound/initval.h>
27 #include <sound/tlv.h>
28 #include <sound/cs42l73.h>
29 #include "cs42l73.h"
30 
31 struct sp_config {
32 	u8 spc, mmcc, spfs;
33 	u32 srate;
34 };
35 struct  cs42l73_private {
36 	struct cs42l73_platform_data pdata;
37 	struct sp_config config[3];
38 	struct regmap *regmap;
39 	u32 sysclk;
40 	u8 mclksel;
41 	u32 mclk;
42 	int shutdwn_delay;
43 };
44 
45 static const struct reg_default cs42l73_reg_defaults[] = {
46 	{ 6, 0xF1 },	/* r06	- Power Ctl 1 */
47 	{ 7, 0xDF },	/* r07	- Power Ctl 2 */
48 	{ 8, 0x3F },	/* r08	- Power Ctl 3 */
49 	{ 9, 0x50 },	/* r09	- Charge Pump Freq */
50 	{ 10, 0x53 },	/* r0A	- Output Load MicBias Short Detect */
51 	{ 11, 0x00 },	/* r0B	- DMIC Master Clock Ctl */
52 	{ 12, 0x00 },	/* r0C	- Aux PCM Ctl */
53 	{ 13, 0x15 },	/* r0D	- Aux PCM Master Clock Ctl */
54 	{ 14, 0x00 },	/* r0E	- Audio PCM Ctl */
55 	{ 15, 0x15 },	/* r0F	- Audio PCM Master Clock Ctl */
56 	{ 16, 0x00 },	/* r10	- Voice PCM Ctl */
57 	{ 17, 0x15 },	/* r11	- Voice PCM Master Clock Ctl */
58 	{ 18, 0x00 },	/* r12	- Voice/Aux Sample Rate */
59 	{ 19, 0x06 },	/* r13	- Misc I/O Path Ctl */
60 	{ 20, 0x00 },	/* r14	- ADC Input Path Ctl */
61 	{ 21, 0x00 },	/* r15	- MICA Preamp, PGA Volume */
62 	{ 22, 0x00 },	/* r16	- MICB Preamp, PGA Volume */
63 	{ 23, 0x00 },	/* r17	- Input Path A Digital Volume */
64 	{ 24, 0x00 },	/* r18	- Input Path B Digital Volume */
65 	{ 25, 0x00 },	/* r19	- Playback Digital Ctl */
66 	{ 26, 0x00 },	/* r1A	- HP/LO Left Digital Volume */
67 	{ 27, 0x00 },	/* r1B	- HP/LO Right Digital Volume */
68 	{ 28, 0x00 },	/* r1C	- Speakerphone Digital Volume */
69 	{ 29, 0x00 },	/* r1D	- Ear/SPKLO Digital Volume */
70 	{ 30, 0x00 },	/* r1E	- HP Left Analog Volume */
71 	{ 31, 0x00 },	/* r1F	- HP Right Analog Volume */
72 	{ 32, 0x00 },	/* r20	- LO Left Analog Volume */
73 	{ 33, 0x00 },	/* r21	- LO Right Analog Volume */
74 	{ 34, 0x00 },	/* r22	- Stereo Input Path Advisory Volume */
75 	{ 35, 0x00 },	/* r23	- Aux PCM Input Advisory Volume */
76 	{ 36, 0x00 },	/* r24	- Audio PCM Input Advisory Volume */
77 	{ 37, 0x00 },	/* r25	- Voice PCM Input Advisory Volume */
78 	{ 38, 0x00 },	/* r26	- Limiter Attack Rate HP/LO */
79 	{ 39, 0x7F },	/* r27	- Limter Ctl, Release Rate HP/LO */
80 	{ 40, 0x00 },	/* r28	- Limter Threshold HP/LO */
81 	{ 41, 0x00 },	/* r29	- Limiter Attack Rate Speakerphone */
82 	{ 42, 0x3F },	/* r2A	- Limter Ctl, Release Rate Speakerphone */
83 	{ 43, 0x00 },	/* r2B	- Limter Threshold Speakerphone */
84 	{ 44, 0x00 },	/* r2C	- Limiter Attack Rate Ear/SPKLO */
85 	{ 45, 0x3F },	/* r2D	- Limter Ctl, Release Rate Ear/SPKLO */
86 	{ 46, 0x00 },	/* r2E	- Limter Threshold Ear/SPKLO */
87 	{ 47, 0x00 },	/* r2F	- ALC Enable, Attack Rate Left/Right */
88 	{ 48, 0x3F },	/* r30	- ALC Release Rate Left/Right */
89 	{ 49, 0x00 },	/* r31	- ALC Threshold Left/Right */
90 	{ 50, 0x00 },	/* r32	- Noise Gate Ctl Left/Right */
91 	{ 51, 0x00 },	/* r33	- ALC/NG Misc Ctl */
92 	{ 52, 0x18 },	/* r34	- Mixer Ctl */
93 	{ 53, 0x3F },	/* r35	- HP/LO Left Mixer Input Path Volume */
94 	{ 54, 0x3F },	/* r36	- HP/LO Right Mixer Input Path Volume */
95 	{ 55, 0x3F },	/* r37	- HP/LO Left Mixer Aux PCM Volume */
96 	{ 56, 0x3F },	/* r38	- HP/LO Right Mixer Aux PCM Volume */
97 	{ 57, 0x3F },	/* r39	- HP/LO Left Mixer Audio PCM Volume */
98 	{ 58, 0x3F },	/* r3A	- HP/LO Right Mixer Audio PCM Volume */
99 	{ 59, 0x3F },	/* r3B	- HP/LO Left Mixer Voice PCM Mono Volume */
100 	{ 60, 0x3F },	/* r3C	- HP/LO Right Mixer Voice PCM Mono Volume */
101 	{ 61, 0x3F },	/* r3D	- Aux PCM Left Mixer Input Path Volume */
102 	{ 62, 0x3F },	/* r3E	- Aux PCM Right Mixer Input Path Volume */
103 	{ 63, 0x3F },	/* r3F	- Aux PCM Left Mixer Volume */
104 	{ 64, 0x3F },	/* r40	- Aux PCM Left Mixer Volume */
105 	{ 65, 0x3F },	/* r41	- Aux PCM Left Mixer Audio PCM L Volume */
106 	{ 66, 0x3F },	/* r42	- Aux PCM Right Mixer Audio PCM R Volume */
107 	{ 67, 0x3F },	/* r43	- Aux PCM Left Mixer Voice PCM Volume */
108 	{ 68, 0x3F },	/* r44	- Aux PCM Right Mixer Voice PCM Volume */
109 	{ 69, 0x3F },	/* r45	- Audio PCM Left Input Path Volume */
110 	{ 70, 0x3F },	/* r46	- Audio PCM Right Input Path Volume */
111 	{ 71, 0x3F },	/* r47	- Audio PCM Left Mixer Aux PCM L Volume */
112 	{ 72, 0x3F },	/* r48	- Audio PCM Right Mixer Aux PCM R Volume */
113 	{ 73, 0x3F },	/* r49	- Audio PCM Left Mixer Volume */
114 	{ 74, 0x3F },	/* r4A	- Audio PCM Right Mixer Volume */
115 	{ 75, 0x3F },	/* r4B	- Audio PCM Left Mixer Voice PCM Volume */
116 	{ 76, 0x3F },	/* r4C	- Audio PCM Right Mixer Voice PCM Volume */
117 	{ 77, 0x3F },	/* r4D	- Voice PCM Left Input Path Volume */
118 	{ 78, 0x3F },	/* r4E	- Voice PCM Right Input Path Volume */
119 	{ 79, 0x3F },	/* r4F	- Voice PCM Left Mixer Aux PCM L Volume */
120 	{ 80, 0x3F },	/* r50	- Voice PCM Right Mixer Aux PCM R Volume */
121 	{ 81, 0x3F },	/* r51	- Voice PCM Left Mixer Audio PCM L Volume */
122 	{ 82, 0x3F },	/* r52	- Voice PCM Right Mixer Audio PCM R Volume */
123 	{ 83, 0x3F },	/* r53	- Voice PCM Left Mixer Voice PCM Volume */
124 	{ 84, 0x3F },	/* r54	- Voice PCM Right Mixer Voice PCM Volume */
125 	{ 85, 0xAA },	/* r55	- Mono Mixer Ctl */
126 	{ 86, 0x3F },	/* r56	- SPK Mono Mixer Input Path Volume */
127 	{ 87, 0x3F },	/* r57	- SPK Mono Mixer Aux PCM Mono/L/R Volume */
128 	{ 88, 0x3F },	/* r58	- SPK Mono Mixer Audio PCM Mono/L/R Volume */
129 	{ 89, 0x3F },	/* r59	- SPK Mono Mixer Voice PCM Mono Volume */
130 	{ 90, 0x3F },	/* r5A	- SPKLO Mono Mixer Input Path Mono Volume */
131 	{ 91, 0x3F },	/* r5B	- SPKLO Mono Mixer Aux Mono/L/R Volume */
132 	{ 92, 0x3F },	/* r5C	- SPKLO Mono Mixer Audio Mono/L/R Volume */
133 	{ 93, 0x3F },	/* r5D	- SPKLO Mono Mixer Voice Mono Volume */
134 	{ 94, 0x00 },	/* r5E	- Interrupt Mask 1 */
135 	{ 95, 0x00 },	/* r5F	- Interrupt Mask 2 */
136 };
137 
138 static bool cs42l73_volatile_register(struct device *dev, unsigned int reg)
139 {
140 	switch (reg) {
141 	case CS42L73_IS1:
142 	case CS42L73_IS2:
143 		return true;
144 	default:
145 		return false;
146 	}
147 }
148 
149 static bool cs42l73_readable_register(struct device *dev, unsigned int reg)
150 {
151 	switch (reg) {
152 	case CS42L73_DEVID_AB ... CS42L73_DEVID_E:
153 	case CS42L73_REVID ... CS42L73_IM2:
154 		return true;
155 	default:
156 		return false;
157 	}
158 }
159 
160 static const DECLARE_TLV_DB_RANGE(hpaloa_tlv,
161 	0, 13, TLV_DB_SCALE_ITEM(-7600, 200, 0),
162 	14, 75, TLV_DB_SCALE_ITEM(-4900, 100, 0)
163 );
164 
165 static DECLARE_TLV_DB_SCALE(adc_boost_tlv, 0, 2500, 0);
166 
167 static DECLARE_TLV_DB_SCALE(hl_tlv, -10200, 50, 0);
168 
169 static DECLARE_TLV_DB_SCALE(ipd_tlv, -9600, 100, 0);
170 
171 static DECLARE_TLV_DB_SCALE(micpga_tlv, -600, 50, 0);
172 
173 static const DECLARE_TLV_DB_RANGE(limiter_tlv,
174 	0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0),
175 	3, 7, TLV_DB_SCALE_ITEM(-1200, 300, 0)
176 );
177 
178 static const DECLARE_TLV_DB_SCALE(attn_tlv, -6300, 100, 1);
179 
180 static const char * const cs42l73_pgaa_text[] = { "Line A", "Mic 1" };
181 static const char * const cs42l73_pgab_text[] = { "Line B", "Mic 2" };
182 
183 static SOC_ENUM_SINGLE_DECL(pgaa_enum,
184 			    CS42L73_ADCIPC, 3,
185 			    cs42l73_pgaa_text);
186 
187 static SOC_ENUM_SINGLE_DECL(pgab_enum,
188 			    CS42L73_ADCIPC, 7,
189 			    cs42l73_pgab_text);
190 
191 static const struct snd_kcontrol_new pgaa_mux =
192 	SOC_DAPM_ENUM("Left Analog Input Capture Mux", pgaa_enum);
193 
194 static const struct snd_kcontrol_new pgab_mux =
195 	SOC_DAPM_ENUM("Right Analog Input Capture Mux", pgab_enum);
196 
197 static const struct snd_kcontrol_new input_left_mixer[] = {
198 	SOC_DAPM_SINGLE("ADC Left Input", CS42L73_PWRCTL1,
199 			5, 1, 1),
200 	SOC_DAPM_SINGLE("DMIC Left Input", CS42L73_PWRCTL1,
201 			4, 1, 1),
202 };
203 
204 static const struct snd_kcontrol_new input_right_mixer[] = {
205 	SOC_DAPM_SINGLE("ADC Right Input", CS42L73_PWRCTL1,
206 			7, 1, 1),
207 	SOC_DAPM_SINGLE("DMIC Right Input", CS42L73_PWRCTL1,
208 			6, 1, 1),
209 };
210 
211 static const char * const cs42l73_ng_delay_text[] = {
212 	"50ms", "100ms", "150ms", "200ms" };
213 
214 static SOC_ENUM_SINGLE_DECL(ng_delay_enum,
215 			    CS42L73_NGCAB, 0,
216 			    cs42l73_ng_delay_text);
217 
218 static const char * const cs42l73_mono_mix_texts[] = {
219 	"Left", "Right", "Mono Mix"};
220 
221 static const unsigned int cs42l73_mono_mix_values[] = { 0, 1, 2 };
222 
223 static const struct soc_enum spk_asp_enum =
224 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 6, 3,
225 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
226 			      cs42l73_mono_mix_texts,
227 			      cs42l73_mono_mix_values);
228 
229 static const struct snd_kcontrol_new spk_asp_mixer =
230 	SOC_DAPM_ENUM("Route", spk_asp_enum);
231 
232 static const struct soc_enum spk_xsp_enum =
233 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 4, 3,
234 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
235 			      cs42l73_mono_mix_texts,
236 			      cs42l73_mono_mix_values);
237 
238 static const struct snd_kcontrol_new spk_xsp_mixer =
239 	SOC_DAPM_ENUM("Route", spk_xsp_enum);
240 
241 static const struct soc_enum esl_asp_enum =
242 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 2, 3,
243 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
244 			      cs42l73_mono_mix_texts,
245 			      cs42l73_mono_mix_values);
246 
247 static const struct snd_kcontrol_new esl_asp_mixer =
248 	SOC_DAPM_ENUM("Route", esl_asp_enum);
249 
250 static const struct soc_enum esl_xsp_enum =
251 	SOC_VALUE_ENUM_SINGLE(CS42L73_MMIXCTL, 0, 3,
252 			      ARRAY_SIZE(cs42l73_mono_mix_texts),
253 			      cs42l73_mono_mix_texts,
254 			      cs42l73_mono_mix_values);
255 
256 static const struct snd_kcontrol_new esl_xsp_mixer =
257 	SOC_DAPM_ENUM("Route", esl_xsp_enum);
258 
259 static const char * const cs42l73_ip_swap_text[] = {
260 	"Stereo", "Mono A", "Mono B", "Swap A-B"};
261 
262 static SOC_ENUM_SINGLE_DECL(ip_swap_enum,
263 			    CS42L73_MIOPC, 6,
264 			    cs42l73_ip_swap_text);
265 
266 static const char * const cs42l73_spo_mixer_text[] = {"Mono", "Stereo"};
267 
268 static SOC_ENUM_SINGLE_DECL(vsp_output_mux_enum,
269 			    CS42L73_MIXERCTL, 5,
270 			    cs42l73_spo_mixer_text);
271 
272 static SOC_ENUM_SINGLE_DECL(xsp_output_mux_enum,
273 			    CS42L73_MIXERCTL, 4,
274 			    cs42l73_spo_mixer_text);
275 
276 static const struct snd_kcontrol_new vsp_output_mux =
277 	SOC_DAPM_ENUM("Route", vsp_output_mux_enum);
278 
279 static const struct snd_kcontrol_new xsp_output_mux =
280 	SOC_DAPM_ENUM("Route", xsp_output_mux_enum);
281 
282 static const struct snd_kcontrol_new hp_amp_ctl =
283 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 0, 1, 1);
284 
285 static const struct snd_kcontrol_new lo_amp_ctl =
286 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 1, 1, 1);
287 
288 static const struct snd_kcontrol_new spk_amp_ctl =
289 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 2, 1, 1);
290 
291 static const struct snd_kcontrol_new spklo_amp_ctl =
292 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 4, 1, 1);
293 
294 static const struct snd_kcontrol_new ear_amp_ctl =
295 	SOC_DAPM_SINGLE("Switch", CS42L73_PWRCTL3, 3, 1, 1);
296 
297 static const struct snd_kcontrol_new cs42l73_snd_controls[] = {
298 	SOC_DOUBLE_R_SX_TLV("Headphone Analog Playback Volume",
299 			CS42L73_HPAAVOL, CS42L73_HPBAVOL, 0,
300 			0x41, 0x4B, hpaloa_tlv),
301 
302 	SOC_DOUBLE_R_SX_TLV("LineOut Analog Playback Volume", CS42L73_LOAAVOL,
303 			CS42L73_LOBAVOL, 0, 0x41, 0x4B, hpaloa_tlv),
304 
305 	SOC_DOUBLE_R_SX_TLV("Input PGA Analog Volume", CS42L73_MICAPREPGAAVOL,
306 			CS42L73_MICBPREPGABVOL, 0, 0x34,
307 			0x24, micpga_tlv),
308 
309 	SOC_DOUBLE_R("MIC Preamp Switch", CS42L73_MICAPREPGAAVOL,
310 			CS42L73_MICBPREPGABVOL, 6, 1, 1),
311 
312 	SOC_DOUBLE_R_SX_TLV("Input Path Digital Volume", CS42L73_IPADVOL,
313 			CS42L73_IPBDVOL, 0, 0xA0, 0x6C, ipd_tlv),
314 
315 	SOC_DOUBLE_R_SX_TLV("HL Digital Playback Volume",
316 			CS42L73_HLADVOL, CS42L73_HLBDVOL,
317 			0, 0x34, 0xE4, hl_tlv),
318 
319 	SOC_SINGLE_TLV("ADC A Boost Volume",
320 			CS42L73_ADCIPC, 2, 0x01, 1, adc_boost_tlv),
321 
322 	SOC_SINGLE_TLV("ADC B Boost Volume",
323 		       CS42L73_ADCIPC, 6, 0x01, 1, adc_boost_tlv),
324 
325 	SOC_SINGLE_SX_TLV("Speakerphone Digital Volume",
326 			    CS42L73_SPKDVOL, 0, 0x34, 0xE4, hl_tlv),
327 
328 	SOC_SINGLE_SX_TLV("Ear Speaker Digital Volume",
329 			    CS42L73_ESLDVOL, 0, 0x34, 0xE4, hl_tlv),
330 
331 	SOC_DOUBLE_R("Headphone Analog Playback Switch", CS42L73_HPAAVOL,
332 			CS42L73_HPBAVOL, 7, 1, 1),
333 
334 	SOC_DOUBLE_R("LineOut Analog Playback Switch", CS42L73_LOAAVOL,
335 			CS42L73_LOBAVOL, 7, 1, 1),
336 	SOC_DOUBLE("Input Path Digital Switch", CS42L73_ADCIPC, 0, 4, 1, 1),
337 	SOC_DOUBLE("HL Digital Playback Switch", CS42L73_PBDC, 0,
338 			1, 1, 1),
339 	SOC_SINGLE("Speakerphone Digital Playback Switch", CS42L73_PBDC, 2, 1,
340 			1),
341 	SOC_SINGLE("Ear Speaker Digital Playback Switch", CS42L73_PBDC, 3, 1,
342 			1),
343 
344 	SOC_SINGLE("PGA Soft-Ramp Switch", CS42L73_MIOPC, 3, 1, 0),
345 	SOC_SINGLE("Analog Zero Cross Switch", CS42L73_MIOPC, 2, 1, 0),
346 	SOC_SINGLE("Digital Soft-Ramp Switch", CS42L73_MIOPC, 1, 1, 0),
347 	SOC_SINGLE("Analog Output Soft-Ramp Switch", CS42L73_MIOPC, 0, 1, 0),
348 
349 	SOC_DOUBLE("ADC Signal Polarity Switch", CS42L73_ADCIPC, 1, 5, 1,
350 			0),
351 
352 	SOC_SINGLE("HL Limiter Attack Rate", CS42L73_LIMARATEHL, 0, 0x3F,
353 			0),
354 	SOC_SINGLE("HL Limiter Release Rate", CS42L73_LIMRRATEHL, 0,
355 			0x3F, 0),
356 
357 
358 	SOC_SINGLE("HL Limiter Switch", CS42L73_LIMRRATEHL, 7, 1, 0),
359 	SOC_SINGLE("HL Limiter All Channels Switch", CS42L73_LIMRRATEHL, 6, 1,
360 			0),
361 
362 	SOC_SINGLE_TLV("HL Limiter Max Threshold Volume", CS42L73_LMAXHL, 5, 7,
363 			1, limiter_tlv),
364 
365 	SOC_SINGLE_TLV("HL Limiter Cushion Volume", CS42L73_LMAXHL, 2, 7, 1,
366 			limiter_tlv),
367 
368 	SOC_SINGLE("SPK Limiter Attack Rate Volume", CS42L73_LIMARATESPK, 0,
369 			0x3F, 0),
370 	SOC_SINGLE("SPK Limiter Release Rate Volume", CS42L73_LIMRRATESPK, 0,
371 			0x3F, 0),
372 	SOC_SINGLE("SPK Limiter Switch", CS42L73_LIMRRATESPK, 7, 1, 0),
373 	SOC_SINGLE("SPK Limiter All Channels Switch", CS42L73_LIMRRATESPK,
374 			6, 1, 0),
375 	SOC_SINGLE_TLV("SPK Limiter Max Threshold Volume", CS42L73_LMAXSPK, 5,
376 			7, 1, limiter_tlv),
377 
378 	SOC_SINGLE_TLV("SPK Limiter Cushion Volume", CS42L73_LMAXSPK, 2, 7, 1,
379 			limiter_tlv),
380 
381 	SOC_SINGLE("ESL Limiter Attack Rate Volume", CS42L73_LIMARATEESL, 0,
382 			0x3F, 0),
383 	SOC_SINGLE("ESL Limiter Release Rate Volume", CS42L73_LIMRRATEESL, 0,
384 			0x3F, 0),
385 	SOC_SINGLE("ESL Limiter Switch", CS42L73_LIMRRATEESL, 7, 1, 0),
386 	SOC_SINGLE_TLV("ESL Limiter Max Threshold Volume", CS42L73_LMAXESL, 5,
387 			7, 1, limiter_tlv),
388 
389 	SOC_SINGLE_TLV("ESL Limiter Cushion Volume", CS42L73_LMAXESL, 2, 7, 1,
390 			limiter_tlv),
391 
392 	SOC_SINGLE("ALC Attack Rate Volume", CS42L73_ALCARATE, 0, 0x3F, 0),
393 	SOC_SINGLE("ALC Release Rate Volume", CS42L73_ALCRRATE, 0, 0x3F, 0),
394 	SOC_DOUBLE("ALC Switch", CS42L73_ALCARATE, 6, 7, 1, 0),
395 	SOC_SINGLE_TLV("ALC Max Threshold Volume", CS42L73_ALCMINMAX, 5, 7, 0,
396 			limiter_tlv),
397 	SOC_SINGLE_TLV("ALC Min Threshold Volume", CS42L73_ALCMINMAX, 2, 7, 0,
398 			limiter_tlv),
399 
400 	SOC_DOUBLE("NG Enable Switch", CS42L73_NGCAB, 6, 7, 1, 0),
401 	SOC_SINGLE("NG Boost Switch", CS42L73_NGCAB, 5, 1, 0),
402 	/*
403 	    NG Threshold depends on NG_BOOTSAB, which selects
404 	    between two threshold scales in decibels.
405 	    Set linear values for now ..
406 	*/
407 	SOC_SINGLE("NG Threshold", CS42L73_NGCAB, 2, 7, 0),
408 	SOC_ENUM("NG Delay", ng_delay_enum),
409 
410 	SOC_DOUBLE_R_TLV("XSP-IP Volume",
411 			CS42L73_XSPAIPAA, CS42L73_XSPBIPBA, 0, 0x3F, 1,
412 			attn_tlv),
413 	SOC_DOUBLE_R_TLV("XSP-XSP Volume",
414 			CS42L73_XSPAXSPAA, CS42L73_XSPBXSPBA, 0, 0x3F, 1,
415 			attn_tlv),
416 	SOC_DOUBLE_R_TLV("XSP-ASP Volume",
417 			CS42L73_XSPAASPAA, CS42L73_XSPAASPBA, 0, 0x3F, 1,
418 			attn_tlv),
419 	SOC_DOUBLE_R_TLV("XSP-VSP Volume",
420 			CS42L73_XSPAVSPMA, CS42L73_XSPBVSPMA, 0, 0x3F, 1,
421 			attn_tlv),
422 
423 	SOC_DOUBLE_R_TLV("ASP-IP Volume",
424 			CS42L73_ASPAIPAA, CS42L73_ASPBIPBA, 0, 0x3F, 1,
425 			attn_tlv),
426 	SOC_DOUBLE_R_TLV("ASP-XSP Volume",
427 			CS42L73_ASPAXSPAA, CS42L73_ASPBXSPBA, 0, 0x3F, 1,
428 			attn_tlv),
429 	SOC_DOUBLE_R_TLV("ASP-ASP Volume",
430 			CS42L73_ASPAASPAA, CS42L73_ASPBASPBA, 0, 0x3F, 1,
431 			attn_tlv),
432 	SOC_DOUBLE_R_TLV("ASP-VSP Volume",
433 			CS42L73_ASPAVSPMA, CS42L73_ASPBVSPMA, 0, 0x3F, 1,
434 			attn_tlv),
435 
436 	SOC_DOUBLE_R_TLV("VSP-IP Volume",
437 			CS42L73_VSPAIPAA, CS42L73_VSPBIPBA, 0, 0x3F, 1,
438 			attn_tlv),
439 	SOC_DOUBLE_R_TLV("VSP-XSP Volume",
440 			CS42L73_VSPAXSPAA, CS42L73_VSPBXSPBA, 0, 0x3F, 1,
441 			attn_tlv),
442 	SOC_DOUBLE_R_TLV("VSP-ASP Volume",
443 			CS42L73_VSPAASPAA, CS42L73_VSPBASPBA, 0, 0x3F, 1,
444 			attn_tlv),
445 	SOC_DOUBLE_R_TLV("VSP-VSP Volume",
446 			CS42L73_VSPAVSPMA, CS42L73_VSPBVSPMA, 0, 0x3F, 1,
447 			attn_tlv),
448 
449 	SOC_DOUBLE_R_TLV("HL-IP Volume",
450 			CS42L73_HLAIPAA, CS42L73_HLBIPBA, 0, 0x3F, 1,
451 			attn_tlv),
452 	SOC_DOUBLE_R_TLV("HL-XSP Volume",
453 			CS42L73_HLAXSPAA, CS42L73_HLBXSPBA, 0, 0x3F, 1,
454 			attn_tlv),
455 	SOC_DOUBLE_R_TLV("HL-ASP Volume",
456 			CS42L73_HLAASPAA, CS42L73_HLBASPBA, 0, 0x3F, 1,
457 			attn_tlv),
458 	SOC_DOUBLE_R_TLV("HL-VSP Volume",
459 			CS42L73_HLAVSPMA, CS42L73_HLBVSPMA, 0, 0x3F, 1,
460 			attn_tlv),
461 
462 	SOC_SINGLE_TLV("SPK-IP Mono Volume",
463 			CS42L73_SPKMIPMA, 0, 0x3F, 1, attn_tlv),
464 	SOC_SINGLE_TLV("SPK-XSP Mono Volume",
465 			CS42L73_SPKMXSPA, 0, 0x3F, 1, attn_tlv),
466 	SOC_SINGLE_TLV("SPK-ASP Mono Volume",
467 			CS42L73_SPKMASPA, 0, 0x3F, 1, attn_tlv),
468 	SOC_SINGLE_TLV("SPK-VSP Mono Volume",
469 			CS42L73_SPKMVSPMA, 0, 0x3F, 1, attn_tlv),
470 
471 	SOC_SINGLE_TLV("ESL-IP Mono Volume",
472 			CS42L73_ESLMIPMA, 0, 0x3F, 1, attn_tlv),
473 	SOC_SINGLE_TLV("ESL-XSP Mono Volume",
474 			CS42L73_ESLMXSPA, 0, 0x3F, 1, attn_tlv),
475 	SOC_SINGLE_TLV("ESL-ASP Mono Volume",
476 			CS42L73_ESLMASPA, 0, 0x3F, 1, attn_tlv),
477 	SOC_SINGLE_TLV("ESL-VSP Mono Volume",
478 			CS42L73_ESLMVSPMA, 0, 0x3F, 1, attn_tlv),
479 
480 	SOC_ENUM("IP Digital Swap/Mono Select", ip_swap_enum),
481 
482 	SOC_ENUM("VSPOUT Mono/Stereo Select", vsp_output_mux_enum),
483 	SOC_ENUM("XSPOUT Mono/Stereo Select", xsp_output_mux_enum),
484 };
485 
486 static int cs42l73_spklo_spk_amp_event(struct snd_soc_dapm_widget *w,
487 	struct snd_kcontrol *kcontrol, int event)
488 {
489 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
490 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
491 	switch (event) {
492 	case SND_SOC_DAPM_POST_PMD:
493 		/* 150 ms delay between setting PDN and MCLKDIS */
494 		priv->shutdwn_delay = 150;
495 		break;
496 	default:
497 		pr_err("Invalid event = 0x%x\n", event);
498 	}
499 	return 0;
500 }
501 
502 static int cs42l73_ear_amp_event(struct snd_soc_dapm_widget *w,
503 	struct snd_kcontrol *kcontrol, int event)
504 {
505 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
506 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
507 	switch (event) {
508 	case SND_SOC_DAPM_POST_PMD:
509 		/* 50 ms delay between setting PDN and MCLKDIS */
510 		if (priv->shutdwn_delay < 50)
511 			priv->shutdwn_delay = 50;
512 		break;
513 	default:
514 		pr_err("Invalid event = 0x%x\n", event);
515 	}
516 	return 0;
517 }
518 
519 
520 static int cs42l73_hp_amp_event(struct snd_soc_dapm_widget *w,
521 	struct snd_kcontrol *kcontrol, int event)
522 {
523 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
524 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
525 	switch (event) {
526 	case SND_SOC_DAPM_POST_PMD:
527 		/* 30 ms delay between setting PDN and MCLKDIS */
528 		if (priv->shutdwn_delay < 30)
529 			priv->shutdwn_delay = 30;
530 		break;
531 	default:
532 		pr_err("Invalid event = 0x%x\n", event);
533 	}
534 	return 0;
535 }
536 
537 static const struct snd_soc_dapm_widget cs42l73_dapm_widgets[] = {
538 	SND_SOC_DAPM_INPUT("DMICA"),
539 	SND_SOC_DAPM_INPUT("DMICB"),
540 	SND_SOC_DAPM_INPUT("LINEINA"),
541 	SND_SOC_DAPM_INPUT("LINEINB"),
542 	SND_SOC_DAPM_INPUT("MIC1"),
543 	SND_SOC_DAPM_SUPPLY("MIC1 Bias", CS42L73_PWRCTL2, 6, 1, NULL, 0),
544 	SND_SOC_DAPM_INPUT("MIC2"),
545 	SND_SOC_DAPM_SUPPLY("MIC2 Bias", CS42L73_PWRCTL2, 7, 1, NULL, 0),
546 
547 	SND_SOC_DAPM_AIF_OUT("XSPOUTL", NULL,  0,
548 			CS42L73_PWRCTL2, 1, 1),
549 	SND_SOC_DAPM_AIF_OUT("XSPOUTR", NULL,  0,
550 			CS42L73_PWRCTL2, 1, 1),
551 	SND_SOC_DAPM_AIF_OUT("ASPOUTL", NULL,  0,
552 			CS42L73_PWRCTL2, 3, 1),
553 	SND_SOC_DAPM_AIF_OUT("ASPOUTR", NULL,  0,
554 			CS42L73_PWRCTL2, 3, 1),
555 	SND_SOC_DAPM_AIF_OUT("VSPINOUT", NULL,  0,
556 			CS42L73_PWRCTL2, 4, 1),
557 
558 	SND_SOC_DAPM_PGA("PGA Left", SND_SOC_NOPM, 0, 0, NULL, 0),
559 	SND_SOC_DAPM_PGA("PGA Right", SND_SOC_NOPM, 0, 0, NULL, 0),
560 
561 	SND_SOC_DAPM_MUX("PGA Left Mux", SND_SOC_NOPM, 0, 0, &pgaa_mux),
562 	SND_SOC_DAPM_MUX("PGA Right Mux", SND_SOC_NOPM, 0, 0, &pgab_mux),
563 
564 	SND_SOC_DAPM_ADC("ADC Left", NULL, CS42L73_PWRCTL1, 7, 1),
565 	SND_SOC_DAPM_ADC("ADC Right", NULL, CS42L73_PWRCTL1, 5, 1),
566 	SND_SOC_DAPM_ADC("DMIC Left", NULL, CS42L73_PWRCTL1, 6, 1),
567 	SND_SOC_DAPM_ADC("DMIC Right", NULL, CS42L73_PWRCTL1, 4, 1),
568 
569 	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Left Capture", SND_SOC_NOPM,
570 			 0, 0, input_left_mixer,
571 			 ARRAY_SIZE(input_left_mixer)),
572 
573 	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Right Capture", SND_SOC_NOPM,
574 			0, 0, input_right_mixer,
575 			ARRAY_SIZE(input_right_mixer)),
576 
577 	SND_SOC_DAPM_MIXER("ASPL Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
578 	SND_SOC_DAPM_MIXER("ASPR Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
579 	SND_SOC_DAPM_MIXER("XSPL Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
580 	SND_SOC_DAPM_MIXER("XSPR Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
581 	SND_SOC_DAPM_MIXER("VSP Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
582 
583 	SND_SOC_DAPM_AIF_IN("XSPINL", NULL, 0,
584 				CS42L73_PWRCTL2, 0, 1),
585 	SND_SOC_DAPM_AIF_IN("XSPINR", NULL, 0,
586 				CS42L73_PWRCTL2, 0, 1),
587 	SND_SOC_DAPM_AIF_IN("XSPINM", NULL, 0,
588 				CS42L73_PWRCTL2, 0, 1),
589 
590 	SND_SOC_DAPM_AIF_IN("ASPINL", NULL, 0,
591 				CS42L73_PWRCTL2, 2, 1),
592 	SND_SOC_DAPM_AIF_IN("ASPINR", NULL, 0,
593 				CS42L73_PWRCTL2, 2, 1),
594 	SND_SOC_DAPM_AIF_IN("ASPINM", NULL, 0,
595 				CS42L73_PWRCTL2, 2, 1),
596 
597 	SND_SOC_DAPM_AIF_IN("VSPINOUT", NULL, 0,
598 				CS42L73_PWRCTL2, 4, 1),
599 
600 	SND_SOC_DAPM_MIXER("HL Left Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
601 	SND_SOC_DAPM_MIXER("HL Right Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
602 	SND_SOC_DAPM_MIXER("SPK Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
603 	SND_SOC_DAPM_MIXER("ESL Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
604 
605 	SND_SOC_DAPM_MUX("ESL-XSP Mux", SND_SOC_NOPM,
606 			 0, 0, &esl_xsp_mixer),
607 
608 	SND_SOC_DAPM_MUX("ESL-ASP Mux", SND_SOC_NOPM,
609 			 0, 0, &esl_asp_mixer),
610 
611 	SND_SOC_DAPM_MUX("SPK-ASP Mux", SND_SOC_NOPM,
612 			 0, 0, &spk_asp_mixer),
613 
614 	SND_SOC_DAPM_MUX("SPK-XSP Mux", SND_SOC_NOPM,
615 			 0, 0, &spk_xsp_mixer),
616 
617 	SND_SOC_DAPM_PGA("HL Left DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
618 	SND_SOC_DAPM_PGA("HL Right DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
619 	SND_SOC_DAPM_PGA("SPK DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
620 	SND_SOC_DAPM_PGA("ESL DAC", SND_SOC_NOPM, 0, 0, NULL, 0),
621 
622 	SND_SOC_DAPM_SWITCH_E("HP Amp",  CS42L73_PWRCTL3, 0, 1,
623 			    &hp_amp_ctl, cs42l73_hp_amp_event,
624 			SND_SOC_DAPM_POST_PMD),
625 	SND_SOC_DAPM_SWITCH("LO Amp", CS42L73_PWRCTL3, 1, 1,
626 			    &lo_amp_ctl),
627 	SND_SOC_DAPM_SWITCH_E("SPK Amp", CS42L73_PWRCTL3, 2, 1,
628 			&spk_amp_ctl, cs42l73_spklo_spk_amp_event,
629 			SND_SOC_DAPM_POST_PMD),
630 	SND_SOC_DAPM_SWITCH_E("EAR Amp", CS42L73_PWRCTL3, 3, 1,
631 			    &ear_amp_ctl, cs42l73_ear_amp_event,
632 			SND_SOC_DAPM_POST_PMD),
633 	SND_SOC_DAPM_SWITCH_E("SPKLO Amp", CS42L73_PWRCTL3, 4, 1,
634 			    &spklo_amp_ctl, cs42l73_spklo_spk_amp_event,
635 			SND_SOC_DAPM_POST_PMD),
636 
637 	SND_SOC_DAPM_OUTPUT("HPOUTA"),
638 	SND_SOC_DAPM_OUTPUT("HPOUTB"),
639 	SND_SOC_DAPM_OUTPUT("LINEOUTA"),
640 	SND_SOC_DAPM_OUTPUT("LINEOUTB"),
641 	SND_SOC_DAPM_OUTPUT("EAROUT"),
642 	SND_SOC_DAPM_OUTPUT("SPKOUT"),
643 	SND_SOC_DAPM_OUTPUT("SPKLINEOUT"),
644 };
645 
646 static const struct snd_soc_dapm_route cs42l73_audio_map[] = {
647 
648 	/* SPKLO EARSPK Paths */
649 	{"EAROUT", NULL, "EAR Amp"},
650 	{"SPKLINEOUT", NULL, "SPKLO Amp"},
651 
652 	{"EAR Amp", "Switch", "ESL DAC"},
653 	{"SPKLO Amp", "Switch", "ESL DAC"},
654 
655 	{"ESL DAC", "ESL-ASP Mono Volume", "ESL Mixer"},
656 	{"ESL DAC", "ESL-XSP Mono Volume", "ESL Mixer"},
657 	{"ESL DAC", "ESL-VSP Mono Volume", "VSPINOUT"},
658 	/* Loopback */
659 	{"ESL DAC", "ESL-IP Mono Volume", "Input Left Capture"},
660 	{"ESL DAC", "ESL-IP Mono Volume", "Input Right Capture"},
661 
662 	{"ESL Mixer", NULL, "ESL-ASP Mux"},
663 	{"ESL Mixer", NULL, "ESL-XSP Mux"},
664 
665 	{"ESL-ASP Mux", "Left", "ASPINL"},
666 	{"ESL-ASP Mux", "Right", "ASPINR"},
667 	{"ESL-ASP Mux", "Mono Mix", "ASPINM"},
668 
669 	{"ESL-XSP Mux", "Left", "XSPINL"},
670 	{"ESL-XSP Mux", "Right", "XSPINR"},
671 	{"ESL-XSP Mux", "Mono Mix", "XSPINM"},
672 
673 	/* Speakerphone Paths */
674 	{"SPKOUT", NULL, "SPK Amp"},
675 	{"SPK Amp", "Switch", "SPK DAC"},
676 
677 	{"SPK DAC", "SPK-ASP Mono Volume", "SPK Mixer"},
678 	{"SPK DAC", "SPK-XSP Mono Volume", "SPK Mixer"},
679 	{"SPK DAC", "SPK-VSP Mono Volume", "VSPINOUT"},
680 	/* Loopback */
681 	{"SPK DAC", "SPK-IP Mono Volume", "Input Left Capture"},
682 	{"SPK DAC", "SPK-IP Mono Volume", "Input Right Capture"},
683 
684 	{"SPK Mixer", NULL, "SPK-ASP Mux"},
685 	{"SPK Mixer", NULL, "SPK-XSP Mux"},
686 
687 	{"SPK-ASP Mux", "Left", "ASPINL"},
688 	{"SPK-ASP Mux", "Mono Mix", "ASPINM"},
689 	{"SPK-ASP Mux", "Right", "ASPINR"},
690 
691 	{"SPK-XSP Mux", "Left", "XSPINL"},
692 	{"SPK-XSP Mux", "Mono Mix", "XSPINM"},
693 	{"SPK-XSP Mux", "Right", "XSPINR"},
694 
695 	/* HP LineOUT Paths */
696 	{"HPOUTA", NULL, "HP Amp"},
697 	{"HPOUTB", NULL, "HP Amp"},
698 	{"LINEOUTA", NULL, "LO Amp"},
699 	{"LINEOUTB", NULL, "LO Amp"},
700 
701 	{"HP Amp", "Switch", "HL Left DAC"},
702 	{"HP Amp", "Switch", "HL Right DAC"},
703 	{"LO Amp", "Switch", "HL Left DAC"},
704 	{"LO Amp", "Switch", "HL Right DAC"},
705 
706 	{"HL Left DAC", "HL-XSP Volume", "HL Left Mixer"},
707 	{"HL Right DAC", "HL-XSP Volume", "HL Right Mixer"},
708 	{"HL Left DAC", "HL-ASP Volume", "HL Left Mixer"},
709 	{"HL Right DAC", "HL-ASP Volume", "HL Right Mixer"},
710 	{"HL Left DAC", "HL-VSP Volume", "HL Left Mixer"},
711 	{"HL Right DAC", "HL-VSP Volume", "HL Right Mixer"},
712 	/* Loopback */
713 	{"HL Left DAC", "HL-IP Volume", "HL Left Mixer"},
714 	{"HL Right DAC", "HL-IP Volume", "HL Right Mixer"},
715 	{"HL Left Mixer", NULL, "Input Left Capture"},
716 	{"HL Right Mixer", NULL, "Input Right Capture"},
717 
718 	{"HL Left Mixer", NULL, "ASPINL"},
719 	{"HL Right Mixer", NULL, "ASPINR"},
720 	{"HL Left Mixer", NULL, "XSPINL"},
721 	{"HL Right Mixer", NULL, "XSPINR"},
722 	{"HL Left Mixer", NULL, "VSPINOUT"},
723 	{"HL Right Mixer", NULL, "VSPINOUT"},
724 
725 	{"ASPINL", NULL, "ASP Playback"},
726 	{"ASPINM", NULL, "ASP Playback"},
727 	{"ASPINR", NULL, "ASP Playback"},
728 	{"XSPINL", NULL, "XSP Playback"},
729 	{"XSPINM", NULL, "XSP Playback"},
730 	{"XSPINR", NULL, "XSP Playback"},
731 	{"VSPINOUT", NULL, "VSP Playback"},
732 
733 	/* Capture Paths */
734 	{"MIC1", NULL, "MIC1 Bias"},
735 	{"PGA Left Mux", "Mic 1", "MIC1"},
736 	{"MIC2", NULL, "MIC2 Bias"},
737 	{"PGA Right Mux", "Mic 2", "MIC2"},
738 
739 	{"PGA Left Mux", "Line A", "LINEINA"},
740 	{"PGA Right Mux", "Line B", "LINEINB"},
741 
742 	{"PGA Left", NULL, "PGA Left Mux"},
743 	{"PGA Right", NULL, "PGA Right Mux"},
744 
745 	{"ADC Left", NULL, "PGA Left"},
746 	{"ADC Right", NULL, "PGA Right"},
747 	{"DMIC Left", NULL, "DMICA"},
748 	{"DMIC Right", NULL, "DMICB"},
749 
750 	{"Input Left Capture", "ADC Left Input", "ADC Left"},
751 	{"Input Right Capture", "ADC Right Input", "ADC Right"},
752 	{"Input Left Capture", "DMIC Left Input", "DMIC Left"},
753 	{"Input Right Capture", "DMIC Right Input", "DMIC Right"},
754 
755 	/* Audio Capture */
756 	{"ASPL Output Mixer", NULL, "Input Left Capture"},
757 	{"ASPR Output Mixer", NULL, "Input Right Capture"},
758 
759 	{"ASPOUTL", "ASP-IP Volume", "ASPL Output Mixer"},
760 	{"ASPOUTR", "ASP-IP Volume", "ASPR Output Mixer"},
761 
762 	/* Auxillary Capture */
763 	{"XSPL Output Mixer", NULL, "Input Left Capture"},
764 	{"XSPR Output Mixer", NULL, "Input Right Capture"},
765 
766 	{"XSPOUTL", "XSP-IP Volume", "XSPL Output Mixer"},
767 	{"XSPOUTR", "XSP-IP Volume", "XSPR Output Mixer"},
768 
769 	{"XSPOUTL", NULL, "XSPL Output Mixer"},
770 	{"XSPOUTR", NULL, "XSPR Output Mixer"},
771 
772 	/* Voice Capture */
773 	{"VSP Output Mixer", NULL, "Input Left Capture"},
774 	{"VSP Output Mixer", NULL, "Input Right Capture"},
775 
776 	{"VSPINOUT", "VSP-IP Volume", "VSP Output Mixer"},
777 
778 	{"VSPINOUT", NULL, "VSP Output Mixer"},
779 
780 	{"ASP Capture", NULL, "ASPOUTL"},
781 	{"ASP Capture", NULL, "ASPOUTR"},
782 	{"XSP Capture", NULL, "XSPOUTL"},
783 	{"XSP Capture", NULL, "XSPOUTR"},
784 	{"VSP Capture", NULL, "VSPINOUT"},
785 };
786 
787 struct cs42l73_mclk_div {
788 	u32 mclk;
789 	u32 srate;
790 	u8 mmcc;
791 };
792 
793 static const struct cs42l73_mclk_div cs42l73_mclk_coeffs[] = {
794 	/* MCLK, Sample Rate, xMMCC[5:0] */
795 	{5644800, 11025, 0x30},
796 	{5644800, 22050, 0x20},
797 	{5644800, 44100, 0x10},
798 
799 	{6000000,  8000, 0x39},
800 	{6000000, 11025, 0x33},
801 	{6000000, 12000, 0x31},
802 	{6000000, 16000, 0x29},
803 	{6000000, 22050, 0x23},
804 	{6000000, 24000, 0x21},
805 	{6000000, 32000, 0x19},
806 	{6000000, 44100, 0x13},
807 	{6000000, 48000, 0x11},
808 
809 	{6144000,  8000, 0x38},
810 	{6144000, 12000, 0x30},
811 	{6144000, 16000, 0x28},
812 	{6144000, 24000, 0x20},
813 	{6144000, 32000, 0x18},
814 	{6144000, 48000, 0x10},
815 
816 	{6500000,  8000, 0x3C},
817 	{6500000, 11025, 0x35},
818 	{6500000, 12000, 0x34},
819 	{6500000, 16000, 0x2C},
820 	{6500000, 22050, 0x25},
821 	{6500000, 24000, 0x24},
822 	{6500000, 32000, 0x1C},
823 	{6500000, 44100, 0x15},
824 	{6500000, 48000, 0x14},
825 
826 	{6400000,  8000, 0x3E},
827 	{6400000, 11025, 0x37},
828 	{6400000, 12000, 0x36},
829 	{6400000, 16000, 0x2E},
830 	{6400000, 22050, 0x27},
831 	{6400000, 24000, 0x26},
832 	{6400000, 32000, 0x1E},
833 	{6400000, 44100, 0x17},
834 	{6400000, 48000, 0x16},
835 };
836 
837 struct cs42l73_mclkx_div {
838 	u32 mclkx;
839 	u8 ratio;
840 	u8 mclkdiv;
841 };
842 
843 static const struct cs42l73_mclkx_div cs42l73_mclkx_coeffs[] = {
844 	{5644800,  1, 0},	/* 5644800 */
845 	{6000000,  1, 0},	/* 6000000 */
846 	{6144000,  1, 0},	/* 6144000 */
847 	{11289600, 2, 2},	/* 5644800 */
848 	{12288000, 2, 2},	/* 6144000 */
849 	{12000000, 2, 2},	/* 6000000 */
850 	{13000000, 2, 2},	/* 6500000 */
851 	{19200000, 3, 3},	/* 6400000 */
852 	{24000000, 4, 4},	/* 6000000 */
853 	{26000000, 4, 4},	/* 6500000 */
854 	{38400000, 6, 5}	/* 6400000 */
855 };
856 
857 static int cs42l73_get_mclkx_coeff(int mclkx)
858 {
859 	int i;
860 
861 	for (i = 0; i < ARRAY_SIZE(cs42l73_mclkx_coeffs); i++) {
862 		if (cs42l73_mclkx_coeffs[i].mclkx == mclkx)
863 			return i;
864 	}
865 	return -EINVAL;
866 }
867 
868 static int cs42l73_get_mclk_coeff(int mclk, int srate)
869 {
870 	int i;
871 
872 	for (i = 0; i < ARRAY_SIZE(cs42l73_mclk_coeffs); i++) {
873 		if (cs42l73_mclk_coeffs[i].mclk == mclk &&
874 		    cs42l73_mclk_coeffs[i].srate == srate)
875 			return i;
876 	}
877 	return -EINVAL;
878 
879 }
880 
881 static int cs42l73_set_mclk(struct snd_soc_dai *dai, unsigned int freq)
882 {
883 	struct snd_soc_component *component = dai->component;
884 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
885 
886 	int mclkx_coeff;
887 	u32 mclk = 0;
888 	u8 dmmcc = 0;
889 
890 	/* MCLKX -> MCLK */
891 	mclkx_coeff = cs42l73_get_mclkx_coeff(freq);
892 	if (mclkx_coeff < 0)
893 		return mclkx_coeff;
894 
895 	mclk = cs42l73_mclkx_coeffs[mclkx_coeff].mclkx /
896 		cs42l73_mclkx_coeffs[mclkx_coeff].ratio;
897 
898 	dev_dbg(component->dev, "MCLK%u %u  <-> internal MCLK %u\n",
899 		 priv->mclksel + 1, cs42l73_mclkx_coeffs[mclkx_coeff].mclkx,
900 		 mclk);
901 
902 	dmmcc = (priv->mclksel << 4) |
903 		(cs42l73_mclkx_coeffs[mclkx_coeff].mclkdiv << 1);
904 
905 	snd_soc_component_write(component, CS42L73_DMMCC, dmmcc);
906 
907 	priv->sysclk = mclkx_coeff;
908 	priv->mclk = mclk;
909 
910 	return 0;
911 }
912 
913 static int cs42l73_set_sysclk(struct snd_soc_dai *dai,
914 			      int clk_id, unsigned int freq, int dir)
915 {
916 	struct snd_soc_component *component = dai->component;
917 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
918 
919 	switch (clk_id) {
920 	case CS42L73_CLKID_MCLK1:
921 		break;
922 	case CS42L73_CLKID_MCLK2:
923 		break;
924 	default:
925 		return -EINVAL;
926 	}
927 
928 	if ((cs42l73_set_mclk(dai, freq)) < 0) {
929 		dev_err(component->dev, "Unable to set MCLK for dai %s\n",
930 			dai->name);
931 		return -EINVAL;
932 	}
933 
934 	priv->mclksel = clk_id;
935 
936 	return 0;
937 }
938 
939 static int cs42l73_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
940 {
941 	struct snd_soc_component *component = codec_dai->component;
942 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
943 	u8 id = codec_dai->id;
944 	unsigned int inv, format;
945 	u8 spc, mmcc;
946 
947 	spc = snd_soc_component_read32(component, CS42L73_SPC(id));
948 	mmcc = snd_soc_component_read32(component, CS42L73_MMCC(id));
949 
950 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
951 	case SND_SOC_DAIFMT_CBM_CFM:
952 		mmcc |= CS42L73_MS_MASTER;
953 		break;
954 
955 	case SND_SOC_DAIFMT_CBS_CFS:
956 		mmcc &= ~CS42L73_MS_MASTER;
957 		break;
958 
959 	default:
960 		return -EINVAL;
961 	}
962 
963 	format = (fmt & SND_SOC_DAIFMT_FORMAT_MASK);
964 	inv = (fmt & SND_SOC_DAIFMT_INV_MASK);
965 
966 	switch (format) {
967 	case SND_SOC_DAIFMT_I2S:
968 		spc &= ~CS42L73_SPDIF_PCM;
969 		break;
970 	case SND_SOC_DAIFMT_DSP_A:
971 	case SND_SOC_DAIFMT_DSP_B:
972 		if (mmcc & CS42L73_MS_MASTER) {
973 			dev_err(component->dev,
974 				"PCM format in slave mode only\n");
975 			return -EINVAL;
976 		}
977 		if (id == CS42L73_ASP) {
978 			dev_err(component->dev,
979 				"PCM format is not supported on ASP port\n");
980 			return -EINVAL;
981 		}
982 		spc |= CS42L73_SPDIF_PCM;
983 		break;
984 	default:
985 		return -EINVAL;
986 	}
987 
988 	if (spc & CS42L73_SPDIF_PCM) {
989 		/* Clear PCM mode, clear PCM_BIT_ORDER bit for MSB->LSB */
990 		spc &= ~(CS42L73_PCM_MODE_MASK | CS42L73_PCM_BIT_ORDER);
991 		switch (format) {
992 		case SND_SOC_DAIFMT_DSP_B:
993 			if (inv == SND_SOC_DAIFMT_IB_IF)
994 				spc |= CS42L73_PCM_MODE0;
995 			if (inv == SND_SOC_DAIFMT_IB_NF)
996 				spc |= CS42L73_PCM_MODE1;
997 		break;
998 		case SND_SOC_DAIFMT_DSP_A:
999 			if (inv == SND_SOC_DAIFMT_IB_IF)
1000 				spc |= CS42L73_PCM_MODE1;
1001 			break;
1002 		default:
1003 			return -EINVAL;
1004 		}
1005 	}
1006 
1007 	priv->config[id].spc = spc;
1008 	priv->config[id].mmcc = mmcc;
1009 
1010 	return 0;
1011 }
1012 
1013 static const unsigned int cs42l73_asrc_rates[] = {
1014 	8000, 11025, 12000, 16000, 22050,
1015 	24000, 32000, 44100, 48000
1016 };
1017 
1018 static unsigned int cs42l73_get_xspfs_coeff(u32 rate)
1019 {
1020 	int i;
1021 	for (i = 0; i < ARRAY_SIZE(cs42l73_asrc_rates); i++) {
1022 		if (cs42l73_asrc_rates[i] == rate)
1023 			return i + 1;
1024 	}
1025 	return 0;		/* 0 = Don't know */
1026 }
1027 
1028 static void cs42l73_update_asrc(struct snd_soc_component *component, int id, int srate)
1029 {
1030 	u8 spfs = 0;
1031 
1032 	if (srate > 0)
1033 		spfs = cs42l73_get_xspfs_coeff(srate);
1034 
1035 	switch (id) {
1036 	case CS42L73_XSP:
1037 		snd_soc_component_update_bits(component, CS42L73_VXSPFS, 0x0f, spfs);
1038 	break;
1039 	case CS42L73_ASP:
1040 		snd_soc_component_update_bits(component, CS42L73_ASPC, 0x3c, spfs << 2);
1041 	break;
1042 	case CS42L73_VSP:
1043 		snd_soc_component_update_bits(component, CS42L73_VXSPFS, 0xf0, spfs << 4);
1044 	break;
1045 	default:
1046 	break;
1047 	}
1048 }
1049 
1050 static int cs42l73_pcm_hw_params(struct snd_pcm_substream *substream,
1051 				 struct snd_pcm_hw_params *params,
1052 				 struct snd_soc_dai *dai)
1053 {
1054 	struct snd_soc_component *component = dai->component;
1055 	struct cs42l73_private *priv = snd_soc_component_get_drvdata(component);
1056 	int id = dai->id;
1057 	int mclk_coeff;
1058 	int srate = params_rate(params);
1059 
1060 	if (priv->config[id].mmcc & CS42L73_MS_MASTER) {
1061 		/* CS42L73 Master */
1062 		/* MCLK -> srate */
1063 		mclk_coeff =
1064 		    cs42l73_get_mclk_coeff(priv->mclk, srate);
1065 
1066 		if (mclk_coeff < 0)
1067 			return -EINVAL;
1068 
1069 		dev_dbg(component->dev,
1070 			 "DAI[%d]: MCLK %u, srate %u, MMCC[5:0] = %x\n",
1071 			 id, priv->mclk, srate,
1072 			 cs42l73_mclk_coeffs[mclk_coeff].mmcc);
1073 
1074 		priv->config[id].mmcc &= 0xC0;
1075 		priv->config[id].mmcc |= cs42l73_mclk_coeffs[mclk_coeff].mmcc;
1076 		priv->config[id].spc &= 0xFC;
1077 		/* Use SCLK=64*Fs if internal MCLK >= 6.4MHz */
1078 		if (priv->mclk >= 6400000)
1079 			priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
1080 		else
1081 			priv->config[id].spc |= CS42L73_MCK_SCLK_MCLK;
1082 	} else {
1083 		/* CS42L73 Slave */
1084 		priv->config[id].spc &= 0xFC;
1085 		priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
1086 	}
1087 	/* Update ASRCs */
1088 	priv->config[id].srate = srate;
1089 
1090 	snd_soc_component_write(component, CS42L73_SPC(id), priv->config[id].spc);
1091 	snd_soc_component_write(component, CS42L73_MMCC(id), priv->config[id].mmcc);
1092 
1093 	cs42l73_update_asrc(component, id, srate);
1094 
1095 	return 0;
1096 }
1097 
1098 static int cs42l73_set_bias_level(struct snd_soc_component *component,
1099 				  enum snd_soc_bias_level level)
1100 {
1101 	struct cs42l73_private *cs42l73 = snd_soc_component_get_drvdata(component);
1102 
1103 	switch (level) {
1104 	case SND_SOC_BIAS_ON:
1105 		snd_soc_component_update_bits(component, CS42L73_DMMCC, CS42L73_MCLKDIS, 0);
1106 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 0);
1107 		break;
1108 
1109 	case SND_SOC_BIAS_PREPARE:
1110 		break;
1111 
1112 	case SND_SOC_BIAS_STANDBY:
1113 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1114 			regcache_cache_only(cs42l73->regmap, false);
1115 			regcache_sync(cs42l73->regmap);
1116 		}
1117 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 1);
1118 		break;
1119 
1120 	case SND_SOC_BIAS_OFF:
1121 		snd_soc_component_update_bits(component, CS42L73_PWRCTL1, CS42L73_PDN, 1);
1122 		if (cs42l73->shutdwn_delay > 0) {
1123 			mdelay(cs42l73->shutdwn_delay);
1124 			cs42l73->shutdwn_delay = 0;
1125 		} else {
1126 			mdelay(15); /* Min amount of time requred to power
1127 				     * down.
1128 				     */
1129 		}
1130 		snd_soc_component_update_bits(component, CS42L73_DMMCC, CS42L73_MCLKDIS, 1);
1131 		break;
1132 	}
1133 	return 0;
1134 }
1135 
1136 static int cs42l73_set_tristate(struct snd_soc_dai *dai, int tristate)
1137 {
1138 	struct snd_soc_component *component = dai->component;
1139 	int id = dai->id;
1140 
1141 	return snd_soc_component_update_bits(component, CS42L73_SPC(id), CS42L73_SP_3ST,
1142 				   tristate << 7);
1143 }
1144 
1145 static const struct snd_pcm_hw_constraint_list constraints_12_24 = {
1146 	.count  = ARRAY_SIZE(cs42l73_asrc_rates),
1147 	.list   = cs42l73_asrc_rates,
1148 };
1149 
1150 static int cs42l73_pcm_startup(struct snd_pcm_substream *substream,
1151 			       struct snd_soc_dai *dai)
1152 {
1153 	snd_pcm_hw_constraint_list(substream->runtime, 0,
1154 					SNDRV_PCM_HW_PARAM_RATE,
1155 					&constraints_12_24);
1156 	return 0;
1157 }
1158 
1159 
1160 #define CS42L73_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1161 	SNDRV_PCM_FMTBIT_S24_LE)
1162 
1163 static const struct snd_soc_dai_ops cs42l73_ops = {
1164 	.startup = cs42l73_pcm_startup,
1165 	.hw_params = cs42l73_pcm_hw_params,
1166 	.set_fmt = cs42l73_set_dai_fmt,
1167 	.set_sysclk = cs42l73_set_sysclk,
1168 	.set_tristate = cs42l73_set_tristate,
1169 };
1170 
1171 static struct snd_soc_dai_driver cs42l73_dai[] = {
1172 	{
1173 		.name = "cs42l73-xsp",
1174 		.id = CS42L73_XSP,
1175 		.playback = {
1176 			.stream_name = "XSP Playback",
1177 			.channels_min = 1,
1178 			.channels_max = 2,
1179 			.rates = SNDRV_PCM_RATE_KNOT,
1180 			.formats = CS42L73_FORMATS,
1181 		},
1182 		.capture = {
1183 			.stream_name = "XSP Capture",
1184 			.channels_min = 1,
1185 			.channels_max = 2,
1186 			.rates = SNDRV_PCM_RATE_KNOT,
1187 			.formats = CS42L73_FORMATS,
1188 		},
1189 		.ops = &cs42l73_ops,
1190 		.symmetric_rates = 1,
1191 	 },
1192 	{
1193 		.name = "cs42l73-asp",
1194 		.id = CS42L73_ASP,
1195 		.playback = {
1196 			.stream_name = "ASP Playback",
1197 			.channels_min = 2,
1198 			.channels_max = 2,
1199 			.rates = SNDRV_PCM_RATE_KNOT,
1200 			.formats = CS42L73_FORMATS,
1201 		},
1202 		.capture = {
1203 			.stream_name = "ASP Capture",
1204 			.channels_min = 2,
1205 			.channels_max = 2,
1206 			.rates = SNDRV_PCM_RATE_KNOT,
1207 			.formats = CS42L73_FORMATS,
1208 		},
1209 		.ops = &cs42l73_ops,
1210 		.symmetric_rates = 1,
1211 	 },
1212 	{
1213 		.name = "cs42l73-vsp",
1214 		.id = CS42L73_VSP,
1215 		.playback = {
1216 			.stream_name = "VSP Playback",
1217 			.channels_min = 1,
1218 			.channels_max = 2,
1219 			.rates = SNDRV_PCM_RATE_KNOT,
1220 			.formats = CS42L73_FORMATS,
1221 		},
1222 		.capture = {
1223 			.stream_name = "VSP Capture",
1224 			.channels_min = 1,
1225 			.channels_max = 2,
1226 			.rates = SNDRV_PCM_RATE_KNOT,
1227 			.formats = CS42L73_FORMATS,
1228 		},
1229 		.ops = &cs42l73_ops,
1230 		.symmetric_rates = 1,
1231 	 }
1232 };
1233 
1234 static int cs42l73_probe(struct snd_soc_component *component)
1235 {
1236 	struct cs42l73_private *cs42l73 = snd_soc_component_get_drvdata(component);
1237 
1238 	/* Set Charge Pump Frequency */
1239 	if (cs42l73->pdata.chgfreq)
1240 		snd_soc_component_update_bits(component, CS42L73_CPFCHC,
1241 				    CS42L73_CHARGEPUMP_MASK,
1242 					cs42l73->pdata.chgfreq << 4);
1243 
1244 	/* MCLK1 as master clk */
1245 	cs42l73->mclksel = CS42L73_CLKID_MCLK1;
1246 	cs42l73->mclk = 0;
1247 
1248 	return 0;
1249 }
1250 
1251 static const struct snd_soc_component_driver soc_component_dev_cs42l73 = {
1252 	.probe			= cs42l73_probe,
1253 	.set_bias_level		= cs42l73_set_bias_level,
1254 	.controls		= cs42l73_snd_controls,
1255 	.num_controls		= ARRAY_SIZE(cs42l73_snd_controls),
1256 	.dapm_widgets		= cs42l73_dapm_widgets,
1257 	.num_dapm_widgets	= ARRAY_SIZE(cs42l73_dapm_widgets),
1258 	.dapm_routes		= cs42l73_audio_map,
1259 	.num_dapm_routes	= ARRAY_SIZE(cs42l73_audio_map),
1260 	.suspend_bias_off	= 1,
1261 	.idle_bias_on		= 1,
1262 	.use_pmdown_time	= 1,
1263 	.endianness		= 1,
1264 	.non_legacy_dai_naming	= 1,
1265 };
1266 
1267 static const struct regmap_config cs42l73_regmap = {
1268 	.reg_bits = 8,
1269 	.val_bits = 8,
1270 
1271 	.max_register = CS42L73_MAX_REGISTER,
1272 	.reg_defaults = cs42l73_reg_defaults,
1273 	.num_reg_defaults = ARRAY_SIZE(cs42l73_reg_defaults),
1274 	.volatile_reg = cs42l73_volatile_register,
1275 	.readable_reg = cs42l73_readable_register,
1276 	.cache_type = REGCACHE_RBTREE,
1277 };
1278 
1279 static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
1280 			     const struct i2c_device_id *id)
1281 {
1282 	struct cs42l73_private *cs42l73;
1283 	struct cs42l73_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
1284 	int ret;
1285 	unsigned int devid = 0;
1286 	unsigned int reg;
1287 	u32 val32;
1288 
1289 	cs42l73 = devm_kzalloc(&i2c_client->dev, sizeof(*cs42l73), GFP_KERNEL);
1290 	if (!cs42l73)
1291 		return -ENOMEM;
1292 
1293 	cs42l73->regmap = devm_regmap_init_i2c(i2c_client, &cs42l73_regmap);
1294 	if (IS_ERR(cs42l73->regmap)) {
1295 		ret = PTR_ERR(cs42l73->regmap);
1296 		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
1297 		return ret;
1298 	}
1299 
1300 	if (pdata) {
1301 		cs42l73->pdata = *pdata;
1302 	} else {
1303 		pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata),
1304 				     GFP_KERNEL);
1305 		if (!pdata)
1306 			return -ENOMEM;
1307 
1308 		if (i2c_client->dev.of_node) {
1309 			if (of_property_read_u32(i2c_client->dev.of_node,
1310 				"chgfreq", &val32) >= 0)
1311 				pdata->chgfreq = val32;
1312 		}
1313 		pdata->reset_gpio = of_get_named_gpio(i2c_client->dev.of_node,
1314 						"reset-gpio", 0);
1315 		cs42l73->pdata = *pdata;
1316 	}
1317 
1318 	i2c_set_clientdata(i2c_client, cs42l73);
1319 
1320 	if (cs42l73->pdata.reset_gpio) {
1321 		ret = devm_gpio_request_one(&i2c_client->dev,
1322 					    cs42l73->pdata.reset_gpio,
1323 					    GPIOF_OUT_INIT_HIGH,
1324 					    "CS42L73 /RST");
1325 		if (ret < 0) {
1326 			dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
1327 				cs42l73->pdata.reset_gpio, ret);
1328 			return ret;
1329 		}
1330 		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0);
1331 		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 1);
1332 	}
1333 
1334 	/* initialize codec */
1335 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_AB, &reg);
1336 	devid = (reg & 0xFF) << 12;
1337 
1338 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_CD, &reg);
1339 	devid |= (reg & 0xFF) << 4;
1340 
1341 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_E, &reg);
1342 	devid |= (reg & 0xF0) >> 4;
1343 
1344 	if (devid != CS42L73_DEVID) {
1345 		ret = -ENODEV;
1346 		dev_err(&i2c_client->dev,
1347 			"CS42L73 Device ID (%X). Expected %X\n",
1348 			devid, CS42L73_DEVID);
1349 		return ret;
1350 	}
1351 
1352 	ret = regmap_read(cs42l73->regmap, CS42L73_REVID, &reg);
1353 	if (ret < 0) {
1354 		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
1355 		return ret;
1356 	}
1357 
1358 	dev_info(&i2c_client->dev,
1359 		 "Cirrus Logic CS42L73, Revision: %02X\n", reg & 0xFF);
1360 
1361 	ret = devm_snd_soc_register_component(&i2c_client->dev,
1362 			&soc_component_dev_cs42l73, cs42l73_dai,
1363 			ARRAY_SIZE(cs42l73_dai));
1364 	if (ret < 0)
1365 		return ret;
1366 	return 0;
1367 }
1368 
1369 static const struct of_device_id cs42l73_of_match[] = {
1370 	{ .compatible = "cirrus,cs42l73", },
1371 	{},
1372 };
1373 MODULE_DEVICE_TABLE(of, cs42l73_of_match);
1374 
1375 static const struct i2c_device_id cs42l73_id[] = {
1376 	{"cs42l73", 0},
1377 	{}
1378 };
1379 
1380 MODULE_DEVICE_TABLE(i2c, cs42l73_id);
1381 
1382 static struct i2c_driver cs42l73_i2c_driver = {
1383 	.driver = {
1384 		   .name = "cs42l73",
1385 		   .of_match_table = cs42l73_of_match,
1386 		   },
1387 	.id_table = cs42l73_id,
1388 	.probe = cs42l73_i2c_probe,
1389 
1390 };
1391 
1392 module_i2c_driver(cs42l73_i2c_driver);
1393 
1394 MODULE_DESCRIPTION("ASoC CS42L73 driver");
1395 MODULE_AUTHOR("Georgi Vlaev, Nucleus Systems Ltd, <joe@nucleusys.com>");
1396 MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
1397 MODULE_LICENSE("GPL");
1398