xref: /openbmc/linux/sound/soc/codecs/wm8990.c (revision 4a44a19b)
1 /*
2  * wm8990.c  --  WM8990 ALSA Soc Audio driver
3  *
4  * Copyright 2008 Wolfson Microelectronics PLC.
5  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
6  *
7  *  This program is free software; you can redistribute  it and/or modify it
8  *  under  the terms of  the GNU General  Public License as published by the
9  *  Free Software Foundation;  either version 2 of the  License, or (at your
10  *  option) any later version.
11  */
12 
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
18 #include <linux/pm.h>
19 #include <linux/i2c.h>
20 #include <linux/regmap.h>
21 #include <linux/slab.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/initval.h>
27 #include <sound/tlv.h>
28 #include <asm/div64.h>
29 
30 #include "wm8990.h"
31 
32 /* codec private data */
33 struct wm8990_priv {
34 	struct regmap *regmap;
35 	unsigned int sysclk;
36 	unsigned int pcmclk;
37 };
38 
39 static bool wm8990_volatile_register(struct device *dev, unsigned int reg)
40 {
41 	switch (reg) {
42 	case WM8990_RESET:
43 		return 1;
44 	default:
45 		return 0;
46 	}
47 }
48 
49 static const struct reg_default wm8990_reg_defaults[] = {
50 	{  1, 0x0000 },     /* R1  - Power Management (1) */
51 	{  2, 0x6000 },     /* R2  - Power Management (2) */
52 	{  3, 0x0000 },     /* R3  - Power Management (3) */
53 	{  4, 0x4050 },     /* R4  - Audio Interface (1) */
54 	{  5, 0x4000 },     /* R5  - Audio Interface (2) */
55 	{  6, 0x01C8 },     /* R6  - Clocking (1) */
56 	{  7, 0x0000 },     /* R7  - Clocking (2) */
57 	{  8, 0x0040 },     /* R8  - Audio Interface (3) */
58 	{  9, 0x0040 },     /* R9  - Audio Interface (4) */
59 	{ 10, 0x0004 },     /* R10 - DAC CTRL */
60 	{ 11, 0x00C0 },     /* R11 - Left DAC Digital Volume */
61 	{ 12, 0x00C0 },     /* R12 - Right DAC Digital Volume */
62 	{ 13, 0x0000 },     /* R13 - Digital Side Tone */
63 	{ 14, 0x0100 },     /* R14 - ADC CTRL */
64 	{ 15, 0x00C0 },     /* R15 - Left ADC Digital Volume */
65 	{ 16, 0x00C0 },     /* R16 - Right ADC Digital Volume */
66 
67 	{ 18, 0x0000 },     /* R18 - GPIO CTRL 1 */
68 	{ 19, 0x1000 },     /* R19 - GPIO1 & GPIO2 */
69 	{ 20, 0x1010 },     /* R20 - GPIO3 & GPIO4 */
70 	{ 21, 0x1010 },     /* R21 - GPIO5 & GPIO6 */
71 	{ 22, 0x8000 },     /* R22 - GPIOCTRL 2 */
72 	{ 23, 0x0800 },     /* R23 - GPIO_POL */
73 	{ 24, 0x008B },     /* R24 - Left Line Input 1&2 Volume */
74 	{ 25, 0x008B },     /* R25 - Left Line Input 3&4 Volume */
75 	{ 26, 0x008B },     /* R26 - Right Line Input 1&2 Volume */
76 	{ 27, 0x008B },     /* R27 - Right Line Input 3&4 Volume */
77 	{ 28, 0x0000 },     /* R28 - Left Output Volume */
78 	{ 29, 0x0000 },     /* R29 - Right Output Volume */
79 	{ 30, 0x0066 },     /* R30 - Line Outputs Volume */
80 	{ 31, 0x0022 },     /* R31 - Out3/4 Volume */
81 	{ 32, 0x0079 },     /* R32 - Left OPGA Volume */
82 	{ 33, 0x0079 },     /* R33 - Right OPGA Volume */
83 	{ 34, 0x0003 },     /* R34 - Speaker Volume */
84 	{ 35, 0x0003 },     /* R35 - ClassD1 */
85 
86 	{ 37, 0x0100 },     /* R37 - ClassD3 */
87 	{ 38, 0x0079 },     /* R38 - ClassD4 */
88 	{ 39, 0x0000 },     /* R39 - Input Mixer1 */
89 	{ 40, 0x0000 },     /* R40 - Input Mixer2 */
90 	{ 41, 0x0000 },     /* R41 - Input Mixer3 */
91 	{ 42, 0x0000 },     /* R42 - Input Mixer4 */
92 	{ 43, 0x0000 },     /* R43 - Input Mixer5 */
93 	{ 44, 0x0000 },     /* R44 - Input Mixer6 */
94 	{ 45, 0x0000 },     /* R45 - Output Mixer1 */
95 	{ 46, 0x0000 },     /* R46 - Output Mixer2 */
96 	{ 47, 0x0000 },     /* R47 - Output Mixer3 */
97 	{ 48, 0x0000 },     /* R48 - Output Mixer4 */
98 	{ 49, 0x0000 },     /* R49 - Output Mixer5 */
99 	{ 50, 0x0000 },     /* R50 - Output Mixer6 */
100 	{ 51, 0x0180 },     /* R51 - Out3/4 Mixer */
101 	{ 52, 0x0000 },     /* R52 - Line Mixer1 */
102 	{ 53, 0x0000 },     /* R53 - Line Mixer2 */
103 	{ 54, 0x0000 },     /* R54 - Speaker Mixer */
104 	{ 55, 0x0000 },     /* R55 - Additional Control */
105 	{ 56, 0x0000 },     /* R56 - AntiPOP1 */
106 	{ 57, 0x0000 },     /* R57 - AntiPOP2 */
107 	{ 58, 0x0000 },     /* R58 - MICBIAS */
108 
109 	{ 60, 0x0008 },     /* R60 - PLL1 */
110 	{ 61, 0x0031 },     /* R61 - PLL2 */
111 	{ 62, 0x0026 },     /* R62 - PLL3 */
112 };
113 
114 #define wm8990_reset(c) snd_soc_write(c, WM8990_RESET, 0)
115 
116 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 600, 0);
117 
118 static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1650, 3000, 0);
119 
120 static const DECLARE_TLV_DB_SCALE(out_mix_tlv, 0, -2100, 0);
121 
122 static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -7300, 600, 0);
123 
124 static const DECLARE_TLV_DB_SCALE(out_omix_tlv, -600, 0, 0);
125 
126 static const DECLARE_TLV_DB_SCALE(out_dac_tlv, -7163, 0, 0);
127 
128 static const DECLARE_TLV_DB_SCALE(in_adc_tlv, -7163, 1763, 0);
129 
130 static const DECLARE_TLV_DB_SCALE(out_sidetone_tlv, -3600, 0, 0);
131 
132 static int wm899x_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
133 	struct snd_ctl_elem_value *ucontrol)
134 {
135 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
136 	struct soc_mixer_control *mc =
137 		(struct soc_mixer_control *)kcontrol->private_value;
138 	int reg = mc->reg;
139 	int ret;
140 	u16 val;
141 
142 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
143 	if (ret < 0)
144 		return ret;
145 
146 	/* now hit the volume update bits (always bit 8) */
147 	val = snd_soc_read(codec, reg);
148 	return snd_soc_write(codec, reg, val | 0x0100);
149 }
150 
151 #define SOC_WM899X_OUTPGA_SINGLE_R_TLV(xname, reg, shift, max, invert,\
152 	tlv_array) \
153 	SOC_SINGLE_EXT_TLV(xname, reg, shift, max, invert, \
154 		snd_soc_get_volsw, wm899x_outpga_put_volsw_vu, tlv_array)
155 
156 
157 static const char *wm8990_digital_sidetone[] =
158 	{"None", "Left ADC", "Right ADC", "Reserved"};
159 
160 static SOC_ENUM_SINGLE_DECL(wm8990_left_digital_sidetone_enum,
161 			    WM8990_DIGITAL_SIDE_TONE,
162 			    WM8990_ADC_TO_DACL_SHIFT,
163 			    wm8990_digital_sidetone);
164 
165 static SOC_ENUM_SINGLE_DECL(wm8990_right_digital_sidetone_enum,
166 			    WM8990_DIGITAL_SIDE_TONE,
167 			    WM8990_ADC_TO_DACR_SHIFT,
168 			    wm8990_digital_sidetone);
169 
170 static const char *wm8990_adcmode[] =
171 	{"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
172 
173 static SOC_ENUM_SINGLE_DECL(wm8990_right_adcmode_enum,
174 			    WM8990_ADC_CTRL,
175 			    WM8990_ADC_HPF_CUT_SHIFT,
176 			    wm8990_adcmode);
177 
178 static const struct snd_kcontrol_new wm8990_snd_controls[] = {
179 /* INMIXL */
180 SOC_SINGLE("LIN12 PGA Boost", WM8990_INPUT_MIXER3, WM8990_L12MNBST_BIT, 1, 0),
181 SOC_SINGLE("LIN34 PGA Boost", WM8990_INPUT_MIXER3, WM8990_L34MNBST_BIT, 1, 0),
182 /* INMIXR */
183 SOC_SINGLE("RIN12 PGA Boost", WM8990_INPUT_MIXER3, WM8990_R12MNBST_BIT, 1, 0),
184 SOC_SINGLE("RIN34 PGA Boost", WM8990_INPUT_MIXER3, WM8990_R34MNBST_BIT, 1, 0),
185 
186 /* LOMIX */
187 SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8990_OUTPUT_MIXER3,
188 	WM8990_LLI3LOVOL_SHIFT, WM8990_LLI3LOVOL_MASK, 1, out_mix_tlv),
189 SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8990_OUTPUT_MIXER3,
190 	WM8990_LR12LOVOL_SHIFT, WM8990_LR12LOVOL_MASK, 1, out_mix_tlv),
191 SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8990_OUTPUT_MIXER3,
192 	WM8990_LL12LOVOL_SHIFT, WM8990_LL12LOVOL_MASK, 1, out_mix_tlv),
193 SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8990_OUTPUT_MIXER5,
194 	WM8990_LRI3LOVOL_SHIFT, WM8990_LRI3LOVOL_MASK, 1, out_mix_tlv),
195 SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8990_OUTPUT_MIXER5,
196 	WM8990_LRBLOVOL_SHIFT, WM8990_LRBLOVOL_MASK, 1, out_mix_tlv),
197 SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8990_OUTPUT_MIXER5,
198 	WM8990_LRBLOVOL_SHIFT, WM8990_LRBLOVOL_MASK, 1, out_mix_tlv),
199 
200 /* ROMIX */
201 SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8990_OUTPUT_MIXER4,
202 	WM8990_RRI3ROVOL_SHIFT, WM8990_RRI3ROVOL_MASK, 1, out_mix_tlv),
203 SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8990_OUTPUT_MIXER4,
204 	WM8990_RL12ROVOL_SHIFT, WM8990_RL12ROVOL_MASK, 1, out_mix_tlv),
205 SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8990_OUTPUT_MIXER4,
206 	WM8990_RR12ROVOL_SHIFT, WM8990_RR12ROVOL_MASK, 1, out_mix_tlv),
207 SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8990_OUTPUT_MIXER6,
208 	WM8990_RLI3ROVOL_SHIFT, WM8990_RLI3ROVOL_MASK, 1, out_mix_tlv),
209 SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8990_OUTPUT_MIXER6,
210 	WM8990_RLBROVOL_SHIFT, WM8990_RLBROVOL_MASK, 1, out_mix_tlv),
211 SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8990_OUTPUT_MIXER6,
212 	WM8990_RRBROVOL_SHIFT, WM8990_RRBROVOL_MASK, 1, out_mix_tlv),
213 
214 /* LOUT */
215 SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8990_LEFT_OUTPUT_VOLUME,
216 	WM8990_LOUTVOL_SHIFT, WM8990_LOUTVOL_MASK, 0, out_pga_tlv),
217 SOC_SINGLE("LOUT ZC", WM8990_LEFT_OUTPUT_VOLUME, WM8990_LOZC_BIT, 1, 0),
218 
219 /* ROUT */
220 SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8990_RIGHT_OUTPUT_VOLUME,
221 	WM8990_ROUTVOL_SHIFT, WM8990_ROUTVOL_MASK, 0, out_pga_tlv),
222 SOC_SINGLE("ROUT ZC", WM8990_RIGHT_OUTPUT_VOLUME, WM8990_ROZC_BIT, 1, 0),
223 
224 /* LOPGA */
225 SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8990_LEFT_OPGA_VOLUME,
226 	WM8990_LOPGAVOL_SHIFT, WM8990_LOPGAVOL_MASK, 0, out_pga_tlv),
227 SOC_SINGLE("LOPGA ZC Switch", WM8990_LEFT_OPGA_VOLUME,
228 	WM8990_LOPGAZC_BIT, 1, 0),
229 
230 /* ROPGA */
231 SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8990_RIGHT_OPGA_VOLUME,
232 	WM8990_ROPGAVOL_SHIFT, WM8990_ROPGAVOL_MASK, 0, out_pga_tlv),
233 SOC_SINGLE("ROPGA ZC Switch", WM8990_RIGHT_OPGA_VOLUME,
234 	WM8990_ROPGAZC_BIT, 1, 0),
235 
236 SOC_SINGLE("LON Mute Switch", WM8990_LINE_OUTPUTS_VOLUME,
237 	WM8990_LONMUTE_BIT, 1, 0),
238 SOC_SINGLE("LOP Mute Switch", WM8990_LINE_OUTPUTS_VOLUME,
239 	WM8990_LOPMUTE_BIT, 1, 0),
240 SOC_SINGLE("LOP Attenuation Switch", WM8990_LINE_OUTPUTS_VOLUME,
241 	WM8990_LOATTN_BIT, 1, 0),
242 SOC_SINGLE("RON Mute Switch", WM8990_LINE_OUTPUTS_VOLUME,
243 	WM8990_RONMUTE_BIT, 1, 0),
244 SOC_SINGLE("ROP Mute Switch", WM8990_LINE_OUTPUTS_VOLUME,
245 	WM8990_ROPMUTE_BIT, 1, 0),
246 SOC_SINGLE("ROP Attenuation Switch", WM8990_LINE_OUTPUTS_VOLUME,
247 	WM8990_ROATTN_BIT, 1, 0),
248 
249 SOC_SINGLE("OUT3 Mute Switch", WM8990_OUT3_4_VOLUME,
250 	WM8990_OUT3MUTE_BIT, 1, 0),
251 SOC_SINGLE("OUT3 Attenuation Switch", WM8990_OUT3_4_VOLUME,
252 	WM8990_OUT3ATTN_BIT, 1, 0),
253 
254 SOC_SINGLE("OUT4 Mute Switch", WM8990_OUT3_4_VOLUME,
255 	WM8990_OUT4MUTE_BIT, 1, 0),
256 SOC_SINGLE("OUT4 Attenuation Switch", WM8990_OUT3_4_VOLUME,
257 	WM8990_OUT4ATTN_BIT, 1, 0),
258 
259 SOC_SINGLE("Speaker Mode Switch", WM8990_CLASSD1,
260 	WM8990_CDMODE_BIT, 1, 0),
261 
262 SOC_SINGLE("Speaker Output Attenuation Volume", WM8990_SPEAKER_VOLUME,
263 	WM8990_SPKATTN_SHIFT, WM8990_SPKATTN_MASK, 0),
264 SOC_SINGLE("Speaker DC Boost Volume", WM8990_CLASSD3,
265 	WM8990_DCGAIN_SHIFT, WM8990_DCGAIN_MASK, 0),
266 SOC_SINGLE("Speaker AC Boost Volume", WM8990_CLASSD3,
267 	WM8990_ACGAIN_SHIFT, WM8990_ACGAIN_MASK, 0),
268 SOC_SINGLE_TLV("Speaker Volume", WM8990_CLASSD4,
269 	WM8990_SPKVOL_SHIFT, WM8990_SPKVOL_MASK, 0, out_pga_tlv),
270 SOC_SINGLE("Speaker ZC Switch", WM8990_CLASSD4,
271 	WM8990_SPKZC_SHIFT, WM8990_SPKZC_MASK, 0),
272 
273 SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
274 	WM8990_LEFT_DAC_DIGITAL_VOLUME,
275 	WM8990_DACL_VOL_SHIFT,
276 	WM8990_DACL_VOL_MASK,
277 	0,
278 	out_dac_tlv),
279 
280 SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
281 	WM8990_RIGHT_DAC_DIGITAL_VOLUME,
282 	WM8990_DACR_VOL_SHIFT,
283 	WM8990_DACR_VOL_MASK,
284 	0,
285 	out_dac_tlv),
286 
287 SOC_ENUM("Left Digital Sidetone", wm8990_left_digital_sidetone_enum),
288 SOC_ENUM("Right Digital Sidetone", wm8990_right_digital_sidetone_enum),
289 
290 SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8990_DIGITAL_SIDE_TONE,
291 	WM8990_ADCL_DAC_SVOL_SHIFT, WM8990_ADCL_DAC_SVOL_MASK, 0,
292 	out_sidetone_tlv),
293 SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8990_DIGITAL_SIDE_TONE,
294 	WM8990_ADCR_DAC_SVOL_SHIFT, WM8990_ADCR_DAC_SVOL_MASK, 0,
295 	out_sidetone_tlv),
296 
297 SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8990_ADC_CTRL,
298 	WM8990_ADC_HPF_ENA_BIT, 1, 0),
299 
300 SOC_ENUM("ADC HPF Mode", wm8990_right_adcmode_enum),
301 
302 SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
303 	WM8990_LEFT_ADC_DIGITAL_VOLUME,
304 	WM8990_ADCL_VOL_SHIFT,
305 	WM8990_ADCL_VOL_MASK,
306 	0,
307 	in_adc_tlv),
308 
309 SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
310 	WM8990_RIGHT_ADC_DIGITAL_VOLUME,
311 	WM8990_ADCR_VOL_SHIFT,
312 	WM8990_ADCR_VOL_MASK,
313 	0,
314 	in_adc_tlv),
315 
316 SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
317 	WM8990_LEFT_LINE_INPUT_1_2_VOLUME,
318 	WM8990_LIN12VOL_SHIFT,
319 	WM8990_LIN12VOL_MASK,
320 	0,
321 	in_pga_tlv),
322 
323 SOC_SINGLE("LIN12 ZC Switch", WM8990_LEFT_LINE_INPUT_1_2_VOLUME,
324 	WM8990_LI12ZC_BIT, 1, 0),
325 
326 SOC_SINGLE("LIN12 Mute Switch", WM8990_LEFT_LINE_INPUT_1_2_VOLUME,
327 	WM8990_LI12MUTE_BIT, 1, 0),
328 
329 SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
330 	WM8990_LEFT_LINE_INPUT_3_4_VOLUME,
331 	WM8990_LIN34VOL_SHIFT,
332 	WM8990_LIN34VOL_MASK,
333 	0,
334 	in_pga_tlv),
335 
336 SOC_SINGLE("LIN34 ZC Switch", WM8990_LEFT_LINE_INPUT_3_4_VOLUME,
337 	WM8990_LI34ZC_BIT, 1, 0),
338 
339 SOC_SINGLE("LIN34 Mute Switch", WM8990_LEFT_LINE_INPUT_3_4_VOLUME,
340 	WM8990_LI34MUTE_BIT, 1, 0),
341 
342 SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
343 	WM8990_RIGHT_LINE_INPUT_1_2_VOLUME,
344 	WM8990_RIN12VOL_SHIFT,
345 	WM8990_RIN12VOL_MASK,
346 	0,
347 	in_pga_tlv),
348 
349 SOC_SINGLE("RIN12 ZC Switch", WM8990_RIGHT_LINE_INPUT_1_2_VOLUME,
350 	WM8990_RI12ZC_BIT, 1, 0),
351 
352 SOC_SINGLE("RIN12 Mute Switch", WM8990_RIGHT_LINE_INPUT_1_2_VOLUME,
353 	WM8990_RI12MUTE_BIT, 1, 0),
354 
355 SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
356 	WM8990_RIGHT_LINE_INPUT_3_4_VOLUME,
357 	WM8990_RIN34VOL_SHIFT,
358 	WM8990_RIN34VOL_MASK,
359 	0,
360 	in_pga_tlv),
361 
362 SOC_SINGLE("RIN34 ZC Switch", WM8990_RIGHT_LINE_INPUT_3_4_VOLUME,
363 	WM8990_RI34ZC_BIT, 1, 0),
364 
365 SOC_SINGLE("RIN34 Mute Switch", WM8990_RIGHT_LINE_INPUT_3_4_VOLUME,
366 	WM8990_RI34MUTE_BIT, 1, 0),
367 
368 };
369 
370 /*
371  * _DAPM_ Controls
372  */
373 
374 static int outmixer_event(struct snd_soc_dapm_widget *w,
375 	struct snd_kcontrol *kcontrol, int event)
376 {
377 	u32 reg_shift = kcontrol->private_value & 0xfff;
378 	int ret = 0;
379 	u16 reg;
380 
381 	switch (reg_shift) {
382 	case WM8990_SPEAKER_MIXER | (WM8990_LDSPK_BIT << 8) :
383 		reg = snd_soc_read(w->codec, WM8990_OUTPUT_MIXER1);
384 		if (reg & WM8990_LDLO) {
385 			printk(KERN_WARNING
386 			"Cannot set as Output Mixer 1 LDLO Set\n");
387 			ret = -1;
388 		}
389 		break;
390 	case WM8990_SPEAKER_MIXER | (WM8990_RDSPK_BIT << 8):
391 		reg = snd_soc_read(w->codec, WM8990_OUTPUT_MIXER2);
392 		if (reg & WM8990_RDRO) {
393 			printk(KERN_WARNING
394 			"Cannot set as Output Mixer 2 RDRO Set\n");
395 			ret = -1;
396 		}
397 		break;
398 	case WM8990_OUTPUT_MIXER1 | (WM8990_LDLO_BIT << 8):
399 		reg = snd_soc_read(w->codec, WM8990_SPEAKER_MIXER);
400 		if (reg & WM8990_LDSPK) {
401 			printk(KERN_WARNING
402 			"Cannot set as Speaker Mixer LDSPK Set\n");
403 			ret = -1;
404 		}
405 		break;
406 	case WM8990_OUTPUT_MIXER2 | (WM8990_RDRO_BIT << 8):
407 		reg = snd_soc_read(w->codec, WM8990_SPEAKER_MIXER);
408 		if (reg & WM8990_RDSPK) {
409 			printk(KERN_WARNING
410 			"Cannot set as Speaker Mixer RDSPK Set\n");
411 			ret = -1;
412 		}
413 		break;
414 	}
415 
416 	return ret;
417 }
418 
419 /* INMIX dB values */
420 static const unsigned int in_mix_tlv[] = {
421 	TLV_DB_RANGE_HEAD(1),
422 	0, 7, TLV_DB_SCALE_ITEM(-1200, 600, 0),
423 };
424 
425 /* Left In PGA Connections */
426 static const struct snd_kcontrol_new wm8990_dapm_lin12_pga_controls[] = {
427 SOC_DAPM_SINGLE("LIN1 Switch", WM8990_INPUT_MIXER2, WM8990_LMN1_BIT, 1, 0),
428 SOC_DAPM_SINGLE("LIN2 Switch", WM8990_INPUT_MIXER2, WM8990_LMP2_BIT, 1, 0),
429 };
430 
431 static const struct snd_kcontrol_new wm8990_dapm_lin34_pga_controls[] = {
432 SOC_DAPM_SINGLE("LIN3 Switch", WM8990_INPUT_MIXER2, WM8990_LMN3_BIT, 1, 0),
433 SOC_DAPM_SINGLE("LIN4 Switch", WM8990_INPUT_MIXER2, WM8990_LMP4_BIT, 1, 0),
434 };
435 
436 /* Right In PGA Connections */
437 static const struct snd_kcontrol_new wm8990_dapm_rin12_pga_controls[] = {
438 SOC_DAPM_SINGLE("RIN1 Switch", WM8990_INPUT_MIXER2, WM8990_RMN1_BIT, 1, 0),
439 SOC_DAPM_SINGLE("RIN2 Switch", WM8990_INPUT_MIXER2, WM8990_RMP2_BIT, 1, 0),
440 };
441 
442 static const struct snd_kcontrol_new wm8990_dapm_rin34_pga_controls[] = {
443 SOC_DAPM_SINGLE("RIN3 Switch", WM8990_INPUT_MIXER2, WM8990_RMN3_BIT, 1, 0),
444 SOC_DAPM_SINGLE("RIN4 Switch", WM8990_INPUT_MIXER2, WM8990_RMP4_BIT, 1, 0),
445 };
446 
447 /* INMIXL */
448 static const struct snd_kcontrol_new wm8990_dapm_inmixl_controls[] = {
449 SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8990_INPUT_MIXER3,
450 	WM8990_LDBVOL_SHIFT, WM8990_LDBVOL_MASK, 0, in_mix_tlv),
451 SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8990_INPUT_MIXER5, WM8990_LI2BVOL_SHIFT,
452 	7, 0, in_mix_tlv),
453 SOC_DAPM_SINGLE("LINPGA12 Switch", WM8990_INPUT_MIXER3, WM8990_L12MNB_BIT,
454 	1, 0),
455 SOC_DAPM_SINGLE("LINPGA34 Switch", WM8990_INPUT_MIXER3, WM8990_L34MNB_BIT,
456 	1, 0),
457 };
458 
459 /* INMIXR */
460 static const struct snd_kcontrol_new wm8990_dapm_inmixr_controls[] = {
461 SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8990_INPUT_MIXER4,
462 	WM8990_RDBVOL_SHIFT, WM8990_RDBVOL_MASK, 0, in_mix_tlv),
463 SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8990_INPUT_MIXER6, WM8990_RI2BVOL_SHIFT,
464 	7, 0, in_mix_tlv),
465 SOC_DAPM_SINGLE("RINPGA12 Switch", WM8990_INPUT_MIXER3, WM8990_L12MNB_BIT,
466 	1, 0),
467 SOC_DAPM_SINGLE("RINPGA34 Switch", WM8990_INPUT_MIXER3, WM8990_L34MNB_BIT,
468 	1, 0),
469 };
470 
471 /* AINLMUX */
472 static const char *wm8990_ainlmux[] =
473 	{"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
474 
475 static SOC_ENUM_SINGLE_DECL(wm8990_ainlmux_enum,
476 			    WM8990_INPUT_MIXER1, WM8990_AINLMODE_SHIFT,
477 			    wm8990_ainlmux);
478 
479 static const struct snd_kcontrol_new wm8990_dapm_ainlmux_controls =
480 SOC_DAPM_ENUM("Route", wm8990_ainlmux_enum);
481 
482 /* DIFFINL */
483 
484 /* AINRMUX */
485 static const char *wm8990_ainrmux[] =
486 	{"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
487 
488 static SOC_ENUM_SINGLE_DECL(wm8990_ainrmux_enum,
489 			    WM8990_INPUT_MIXER1, WM8990_AINRMODE_SHIFT,
490 			    wm8990_ainrmux);
491 
492 static const struct snd_kcontrol_new wm8990_dapm_ainrmux_controls =
493 SOC_DAPM_ENUM("Route", wm8990_ainrmux_enum);
494 
495 /* RXVOICE */
496 static const struct snd_kcontrol_new wm8990_dapm_rxvoice_controls[] = {
497 SOC_DAPM_SINGLE_TLV("LIN4/RXN", WM8990_INPUT_MIXER5, WM8990_LR4BVOL_SHIFT,
498 			WM8990_LR4BVOL_MASK, 0, in_mix_tlv),
499 SOC_DAPM_SINGLE_TLV("RIN4/RXP", WM8990_INPUT_MIXER6, WM8990_RL4BVOL_SHIFT,
500 			WM8990_RL4BVOL_MASK, 0, in_mix_tlv),
501 };
502 
503 /* LOMIX */
504 static const struct snd_kcontrol_new wm8990_dapm_lomix_controls[] = {
505 SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8990_OUTPUT_MIXER1,
506 	WM8990_LRBLO_BIT, 1, 0),
507 SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8990_OUTPUT_MIXER1,
508 	WM8990_LLBLO_BIT, 1, 0),
509 SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8990_OUTPUT_MIXER1,
510 	WM8990_LRI3LO_BIT, 1, 0),
511 SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8990_OUTPUT_MIXER1,
512 	WM8990_LLI3LO_BIT, 1, 0),
513 SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8990_OUTPUT_MIXER1,
514 	WM8990_LR12LO_BIT, 1, 0),
515 SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8990_OUTPUT_MIXER1,
516 	WM8990_LL12LO_BIT, 1, 0),
517 SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8990_OUTPUT_MIXER1,
518 	WM8990_LDLO_BIT, 1, 0),
519 };
520 
521 /* ROMIX */
522 static const struct snd_kcontrol_new wm8990_dapm_romix_controls[] = {
523 SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8990_OUTPUT_MIXER2,
524 	WM8990_RLBRO_BIT, 1, 0),
525 SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8990_OUTPUT_MIXER2,
526 	WM8990_RRBRO_BIT, 1, 0),
527 SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8990_OUTPUT_MIXER2,
528 	WM8990_RLI3RO_BIT, 1, 0),
529 SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8990_OUTPUT_MIXER2,
530 	WM8990_RRI3RO_BIT, 1, 0),
531 SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8990_OUTPUT_MIXER2,
532 	WM8990_RL12RO_BIT, 1, 0),
533 SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8990_OUTPUT_MIXER2,
534 	WM8990_RR12RO_BIT, 1, 0),
535 SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8990_OUTPUT_MIXER2,
536 	WM8990_RDRO_BIT, 1, 0),
537 };
538 
539 /* LONMIX */
540 static const struct snd_kcontrol_new wm8990_dapm_lonmix_controls[] = {
541 SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8990_LINE_MIXER1,
542 	WM8990_LLOPGALON_BIT, 1, 0),
543 SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8990_LINE_MIXER1,
544 	WM8990_LROPGALON_BIT, 1, 0),
545 SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8990_LINE_MIXER1,
546 	WM8990_LOPLON_BIT, 1, 0),
547 };
548 
549 /* LOPMIX */
550 static const struct snd_kcontrol_new wm8990_dapm_lopmix_controls[] = {
551 SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8990_LINE_MIXER1,
552 	WM8990_LR12LOP_BIT, 1, 0),
553 SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8990_LINE_MIXER1,
554 	WM8990_LL12LOP_BIT, 1, 0),
555 SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8990_LINE_MIXER1,
556 	WM8990_LLOPGALOP_BIT, 1, 0),
557 };
558 
559 /* RONMIX */
560 static const struct snd_kcontrol_new wm8990_dapm_ronmix_controls[] = {
561 SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8990_LINE_MIXER2,
562 	WM8990_RROPGARON_BIT, 1, 0),
563 SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8990_LINE_MIXER2,
564 	WM8990_RLOPGARON_BIT, 1, 0),
565 SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8990_LINE_MIXER2,
566 	WM8990_ROPRON_BIT, 1, 0),
567 };
568 
569 /* ROPMIX */
570 static const struct snd_kcontrol_new wm8990_dapm_ropmix_controls[] = {
571 SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8990_LINE_MIXER2,
572 	WM8990_RL12ROP_BIT, 1, 0),
573 SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8990_LINE_MIXER2,
574 	WM8990_RR12ROP_BIT, 1, 0),
575 SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8990_LINE_MIXER2,
576 	WM8990_RROPGAROP_BIT, 1, 0),
577 };
578 
579 /* OUT3MIX */
580 static const struct snd_kcontrol_new wm8990_dapm_out3mix_controls[] = {
581 SOC_DAPM_SINGLE("OUT3MIX LIN4/RXP Bypass Switch", WM8990_OUT3_4_MIXER,
582 	WM8990_LI4O3_BIT, 1, 0),
583 SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8990_OUT3_4_MIXER,
584 	WM8990_LPGAO3_BIT, 1, 0),
585 };
586 
587 /* OUT4MIX */
588 static const struct snd_kcontrol_new wm8990_dapm_out4mix_controls[] = {
589 SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8990_OUT3_4_MIXER,
590 	WM8990_RPGAO4_BIT, 1, 0),
591 SOC_DAPM_SINGLE("OUT4MIX RIN4/RXP Bypass Switch", WM8990_OUT3_4_MIXER,
592 	WM8990_RI4O4_BIT, 1, 0),
593 };
594 
595 /* SPKMIX */
596 static const struct snd_kcontrol_new wm8990_dapm_spkmix_controls[] = {
597 SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8990_SPEAKER_MIXER,
598 	WM8990_LI2SPK_BIT, 1, 0),
599 SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8990_SPEAKER_MIXER,
600 	WM8990_LB2SPK_BIT, 1, 0),
601 SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8990_SPEAKER_MIXER,
602 	WM8990_LOPGASPK_BIT, 1, 0),
603 SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8990_SPEAKER_MIXER,
604 	WM8990_LDSPK_BIT, 1, 0),
605 SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8990_SPEAKER_MIXER,
606 	WM8990_RDSPK_BIT, 1, 0),
607 SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8990_SPEAKER_MIXER,
608 	WM8990_ROPGASPK_BIT, 1, 0),
609 SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8990_SPEAKER_MIXER,
610 	WM8990_RL12ROP_BIT, 1, 0),
611 SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8990_SPEAKER_MIXER,
612 	WM8990_RI2SPK_BIT, 1, 0),
613 };
614 
615 static const struct snd_soc_dapm_widget wm8990_dapm_widgets[] = {
616 /* Input Side */
617 /* Input Lines */
618 SND_SOC_DAPM_INPUT("LIN1"),
619 SND_SOC_DAPM_INPUT("LIN2"),
620 SND_SOC_DAPM_INPUT("LIN3"),
621 SND_SOC_DAPM_INPUT("LIN4/RXN"),
622 SND_SOC_DAPM_INPUT("RIN3"),
623 SND_SOC_DAPM_INPUT("RIN4/RXP"),
624 SND_SOC_DAPM_INPUT("RIN1"),
625 SND_SOC_DAPM_INPUT("RIN2"),
626 SND_SOC_DAPM_INPUT("Internal ADC Source"),
627 
628 SND_SOC_DAPM_SUPPLY("INL", WM8990_POWER_MANAGEMENT_2, WM8990_AINL_ENA_BIT, 0,
629 		    NULL, 0),
630 SND_SOC_DAPM_SUPPLY("INR", WM8990_POWER_MANAGEMENT_2, WM8990_AINR_ENA_BIT, 0,
631 		    NULL, 0),
632 
633 /* DACs */
634 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8990_POWER_MANAGEMENT_2,
635 	WM8990_ADCL_ENA_BIT, 0),
636 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8990_POWER_MANAGEMENT_2,
637 	WM8990_ADCR_ENA_BIT, 0),
638 
639 /* Input PGAs */
640 SND_SOC_DAPM_MIXER("LIN12 PGA", WM8990_POWER_MANAGEMENT_2, WM8990_LIN12_ENA_BIT,
641 	0, &wm8990_dapm_lin12_pga_controls[0],
642 	ARRAY_SIZE(wm8990_dapm_lin12_pga_controls)),
643 SND_SOC_DAPM_MIXER("LIN34 PGA", WM8990_POWER_MANAGEMENT_2, WM8990_LIN34_ENA_BIT,
644 	0, &wm8990_dapm_lin34_pga_controls[0],
645 	ARRAY_SIZE(wm8990_dapm_lin34_pga_controls)),
646 SND_SOC_DAPM_MIXER("RIN12 PGA", WM8990_POWER_MANAGEMENT_2, WM8990_RIN12_ENA_BIT,
647 	0, &wm8990_dapm_rin12_pga_controls[0],
648 	ARRAY_SIZE(wm8990_dapm_rin12_pga_controls)),
649 SND_SOC_DAPM_MIXER("RIN34 PGA", WM8990_POWER_MANAGEMENT_2, WM8990_RIN34_ENA_BIT,
650 	0, &wm8990_dapm_rin34_pga_controls[0],
651 	ARRAY_SIZE(wm8990_dapm_rin34_pga_controls)),
652 
653 /* INMIXL */
654 SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
655 	&wm8990_dapm_inmixl_controls[0],
656 	ARRAY_SIZE(wm8990_dapm_inmixl_controls)),
657 
658 /* AINLMUX */
659 SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0, &wm8990_dapm_ainlmux_controls),
660 
661 /* INMIXR */
662 SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
663 	&wm8990_dapm_inmixr_controls[0],
664 	ARRAY_SIZE(wm8990_dapm_inmixr_controls)),
665 
666 /* AINRMUX */
667 SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0, &wm8990_dapm_ainrmux_controls),
668 
669 /* Output Side */
670 /* DACs */
671 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8990_POWER_MANAGEMENT_3,
672 	WM8990_DACL_ENA_BIT, 0),
673 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8990_POWER_MANAGEMENT_3,
674 	WM8990_DACR_ENA_BIT, 0),
675 
676 /* LOMIX */
677 SND_SOC_DAPM_MIXER_E("LOMIX", WM8990_POWER_MANAGEMENT_3, WM8990_LOMIX_ENA_BIT,
678 	0, &wm8990_dapm_lomix_controls[0],
679 	ARRAY_SIZE(wm8990_dapm_lomix_controls),
680 	outmixer_event, SND_SOC_DAPM_PRE_REG),
681 
682 /* LONMIX */
683 SND_SOC_DAPM_MIXER("LONMIX", WM8990_POWER_MANAGEMENT_3, WM8990_LON_ENA_BIT, 0,
684 	&wm8990_dapm_lonmix_controls[0],
685 	ARRAY_SIZE(wm8990_dapm_lonmix_controls)),
686 
687 /* LOPMIX */
688 SND_SOC_DAPM_MIXER("LOPMIX", WM8990_POWER_MANAGEMENT_3, WM8990_LOP_ENA_BIT, 0,
689 	&wm8990_dapm_lopmix_controls[0],
690 	ARRAY_SIZE(wm8990_dapm_lopmix_controls)),
691 
692 /* OUT3MIX */
693 SND_SOC_DAPM_MIXER("OUT3MIX", WM8990_POWER_MANAGEMENT_1, WM8990_OUT3_ENA_BIT, 0,
694 	&wm8990_dapm_out3mix_controls[0],
695 	ARRAY_SIZE(wm8990_dapm_out3mix_controls)),
696 
697 /* SPKMIX */
698 SND_SOC_DAPM_MIXER_E("SPKMIX", WM8990_POWER_MANAGEMENT_1, WM8990_SPK_ENA_BIT, 0,
699 	&wm8990_dapm_spkmix_controls[0],
700 	ARRAY_SIZE(wm8990_dapm_spkmix_controls), outmixer_event,
701 	SND_SOC_DAPM_PRE_REG),
702 
703 /* OUT4MIX */
704 SND_SOC_DAPM_MIXER("OUT4MIX", WM8990_POWER_MANAGEMENT_1, WM8990_OUT4_ENA_BIT, 0,
705 	&wm8990_dapm_out4mix_controls[0],
706 	ARRAY_SIZE(wm8990_dapm_out4mix_controls)),
707 
708 /* ROPMIX */
709 SND_SOC_DAPM_MIXER("ROPMIX", WM8990_POWER_MANAGEMENT_3, WM8990_ROP_ENA_BIT, 0,
710 	&wm8990_dapm_ropmix_controls[0],
711 	ARRAY_SIZE(wm8990_dapm_ropmix_controls)),
712 
713 /* RONMIX */
714 SND_SOC_DAPM_MIXER("RONMIX", WM8990_POWER_MANAGEMENT_3, WM8990_RON_ENA_BIT, 0,
715 	&wm8990_dapm_ronmix_controls[0],
716 	ARRAY_SIZE(wm8990_dapm_ronmix_controls)),
717 
718 /* ROMIX */
719 SND_SOC_DAPM_MIXER_E("ROMIX", WM8990_POWER_MANAGEMENT_3, WM8990_ROMIX_ENA_BIT,
720 	0, &wm8990_dapm_romix_controls[0],
721 	ARRAY_SIZE(wm8990_dapm_romix_controls),
722 	outmixer_event, SND_SOC_DAPM_PRE_REG),
723 
724 /* LOUT PGA */
725 SND_SOC_DAPM_PGA("LOUT PGA", WM8990_POWER_MANAGEMENT_1, WM8990_LOUT_ENA_BIT, 0,
726 	NULL, 0),
727 
728 /* ROUT PGA */
729 SND_SOC_DAPM_PGA("ROUT PGA", WM8990_POWER_MANAGEMENT_1, WM8990_ROUT_ENA_BIT, 0,
730 	NULL, 0),
731 
732 /* LOPGA */
733 SND_SOC_DAPM_PGA("LOPGA", WM8990_POWER_MANAGEMENT_3, WM8990_LOPGA_ENA_BIT, 0,
734 	NULL, 0),
735 
736 /* ROPGA */
737 SND_SOC_DAPM_PGA("ROPGA", WM8990_POWER_MANAGEMENT_3, WM8990_ROPGA_ENA_BIT, 0,
738 	NULL, 0),
739 
740 /* MICBIAS */
741 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8990_POWER_MANAGEMENT_1,
742 		    WM8990_MICBIAS_ENA_BIT, 0, NULL, 0),
743 
744 SND_SOC_DAPM_OUTPUT("LON"),
745 SND_SOC_DAPM_OUTPUT("LOP"),
746 SND_SOC_DAPM_OUTPUT("OUT3"),
747 SND_SOC_DAPM_OUTPUT("LOUT"),
748 SND_SOC_DAPM_OUTPUT("SPKN"),
749 SND_SOC_DAPM_OUTPUT("SPKP"),
750 SND_SOC_DAPM_OUTPUT("ROUT"),
751 SND_SOC_DAPM_OUTPUT("OUT4"),
752 SND_SOC_DAPM_OUTPUT("ROP"),
753 SND_SOC_DAPM_OUTPUT("RON"),
754 
755 SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
756 };
757 
758 static const struct snd_soc_dapm_route wm8990_dapm_routes[] = {
759 	/* Make DACs turn on when playing even if not mixed into any outputs */
760 	{"Internal DAC Sink", NULL, "Left DAC"},
761 	{"Internal DAC Sink", NULL, "Right DAC"},
762 
763 	/* Make ADCs turn on when recording even if not mixed from any inputs */
764 	{"Left ADC", NULL, "Internal ADC Source"},
765 	{"Right ADC", NULL, "Internal ADC Source"},
766 
767 	{"AINLMUX", NULL, "INL"},
768 	{"INMIXL", NULL, "INL"},
769 	{"AINRMUX", NULL, "INR"},
770 	{"INMIXR", NULL, "INR"},
771 
772 	/* Input Side */
773 	/* LIN12 PGA */
774 	{"LIN12 PGA", "LIN1 Switch", "LIN1"},
775 	{"LIN12 PGA", "LIN2 Switch", "LIN2"},
776 	/* LIN34 PGA */
777 	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
778 	{"LIN34 PGA", "LIN4 Switch", "LIN4/RXN"},
779 	/* INMIXL */
780 	{"INMIXL", "Record Left Volume", "LOMIX"},
781 	{"INMIXL", "LIN2 Volume", "LIN2"},
782 	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
783 	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
784 	/* AINLMUX */
785 	{"AINLMUX", "INMIXL Mix", "INMIXL"},
786 	{"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
787 	{"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
788 	{"AINLMUX", "RXVOICE Mix", "LIN4/RXN"},
789 	{"AINLMUX", "RXVOICE Mix", "RIN4/RXP"},
790 	/* ADC */
791 	{"Left ADC", NULL, "AINLMUX"},
792 
793 	/* RIN12 PGA */
794 	{"RIN12 PGA", "RIN1 Switch", "RIN1"},
795 	{"RIN12 PGA", "RIN2 Switch", "RIN2"},
796 	/* RIN34 PGA */
797 	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
798 	{"RIN34 PGA", "RIN4 Switch", "RIN4/RXP"},
799 	/* INMIXL */
800 	{"INMIXR", "Record Right Volume", "ROMIX"},
801 	{"INMIXR", "RIN2 Volume", "RIN2"},
802 	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
803 	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
804 	/* AINRMUX */
805 	{"AINRMUX", "INMIXR Mix", "INMIXR"},
806 	{"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
807 	{"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
808 	{"AINRMUX", "RXVOICE Mix", "LIN4/RXN"},
809 	{"AINRMUX", "RXVOICE Mix", "RIN4/RXP"},
810 	/* ADC */
811 	{"Right ADC", NULL, "AINRMUX"},
812 
813 	/* LOMIX */
814 	{"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
815 	{"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
816 	{"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
817 	{"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
818 	{"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
819 	{"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
820 	{"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
821 
822 	/* ROMIX */
823 	{"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
824 	{"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
825 	{"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
826 	{"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
827 	{"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
828 	{"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
829 	{"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
830 
831 	/* SPKMIX */
832 	{"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
833 	{"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
834 	{"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
835 	{"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
836 	{"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
837 	{"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
838 	{"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
839 	{"SPKMIX", "SPKMIX Left DAC Switch", "Left DAC"},
840 
841 	/* LONMIX */
842 	{"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
843 	{"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
844 	{"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
845 
846 	/* LOPMIX */
847 	{"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
848 	{"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
849 	{"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
850 
851 	/* OUT3MIX */
852 	{"OUT3MIX", "OUT3MIX LIN4/RXP Bypass Switch", "LIN4/RXN"},
853 	{"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
854 
855 	/* OUT4MIX */
856 	{"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
857 	{"OUT4MIX", "OUT4MIX RIN4/RXP Bypass Switch", "RIN4/RXP"},
858 
859 	/* RONMIX */
860 	{"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
861 	{"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
862 	{"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
863 
864 	/* ROPMIX */
865 	{"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
866 	{"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
867 	{"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
868 
869 	/* Out Mixer PGAs */
870 	{"LOPGA", NULL, "LOMIX"},
871 	{"ROPGA", NULL, "ROMIX"},
872 
873 	{"LOUT PGA", NULL, "LOMIX"},
874 	{"ROUT PGA", NULL, "ROMIX"},
875 
876 	/* Output Pins */
877 	{"LON", NULL, "LONMIX"},
878 	{"LOP", NULL, "LOPMIX"},
879 	{"OUT3", NULL, "OUT3MIX"},
880 	{"LOUT", NULL, "LOUT PGA"},
881 	{"SPKN", NULL, "SPKMIX"},
882 	{"ROUT", NULL, "ROUT PGA"},
883 	{"OUT4", NULL, "OUT4MIX"},
884 	{"ROP", NULL, "ROPMIX"},
885 	{"RON", NULL, "RONMIX"},
886 };
887 
888 /* PLL divisors */
889 struct _pll_div {
890 	u32 div2;
891 	u32 n;
892 	u32 k;
893 };
894 
895 /* The size in bits of the pll divide multiplied by 10
896  * to allow rounding later */
897 #define FIXED_PLL_SIZE ((1 << 16) * 10)
898 
899 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
900 	unsigned int source)
901 {
902 	u64 Kpart;
903 	unsigned int K, Ndiv, Nmod;
904 
905 
906 	Ndiv = target / source;
907 	if (Ndiv < 6) {
908 		source >>= 1;
909 		pll_div->div2 = 1;
910 		Ndiv = target / source;
911 	} else
912 		pll_div->div2 = 0;
913 
914 	if ((Ndiv < 6) || (Ndiv > 12))
915 		printk(KERN_WARNING
916 		"WM8990 N value outwith recommended range! N = %u\n", Ndiv);
917 
918 	pll_div->n = Ndiv;
919 	Nmod = target % source;
920 	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
921 
922 	do_div(Kpart, source);
923 
924 	K = Kpart & 0xFFFFFFFF;
925 
926 	/* Check if we need to round */
927 	if ((K % 10) >= 5)
928 		K += 5;
929 
930 	/* Move down to proper range now rounding is done */
931 	K /= 10;
932 
933 	pll_div->k = K;
934 }
935 
936 static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
937 		int source, unsigned int freq_in, unsigned int freq_out)
938 {
939 	struct snd_soc_codec *codec = codec_dai->codec;
940 	struct _pll_div pll_div;
941 
942 	if (freq_in && freq_out) {
943 		pll_factors(&pll_div, freq_out * 4, freq_in);
944 
945 		/* Turn on PLL */
946 		snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
947 				    WM8990_PLL_ENA, WM8990_PLL_ENA);
948 
949 		/* sysclk comes from PLL */
950 		snd_soc_update_bits(codec, WM8990_CLOCKING_2,
951 				    WM8990_SYSCLK_SRC, WM8990_SYSCLK_SRC);
952 
953 		/* set up N , fractional mode and pre-divisor if necessary */
954 		snd_soc_write(codec, WM8990_PLL1, pll_div.n | WM8990_SDM |
955 			(pll_div.div2?WM8990_PRESCALE:0));
956 		snd_soc_write(codec, WM8990_PLL2, (u8)(pll_div.k>>8));
957 		snd_soc_write(codec, WM8990_PLL3, (u8)(pll_div.k & 0xFF));
958 	} else {
959 		/* Turn off PLL */
960 		snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
961 				    WM8990_PLL_ENA, 0);
962 	}
963 	return 0;
964 }
965 
966 /*
967  * Clock after PLL and dividers
968  */
969 static int wm8990_set_dai_sysclk(struct snd_soc_dai *codec_dai,
970 		int clk_id, unsigned int freq, int dir)
971 {
972 	struct snd_soc_codec *codec = codec_dai->codec;
973 	struct wm8990_priv *wm8990 = snd_soc_codec_get_drvdata(codec);
974 
975 	wm8990->sysclk = freq;
976 	return 0;
977 }
978 
979 /*
980  * Set's ADC and Voice DAC format.
981  */
982 static int wm8990_set_dai_fmt(struct snd_soc_dai *codec_dai,
983 		unsigned int fmt)
984 {
985 	struct snd_soc_codec *codec = codec_dai->codec;
986 	u16 audio1, audio3;
987 
988 	audio1 = snd_soc_read(codec, WM8990_AUDIO_INTERFACE_1);
989 	audio3 = snd_soc_read(codec, WM8990_AUDIO_INTERFACE_3);
990 
991 	/* set master/slave audio interface */
992 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
993 	case SND_SOC_DAIFMT_CBS_CFS:
994 		audio3 &= ~WM8990_AIF_MSTR1;
995 		break;
996 	case SND_SOC_DAIFMT_CBM_CFM:
997 		audio3 |= WM8990_AIF_MSTR1;
998 		break;
999 	default:
1000 		return -EINVAL;
1001 	}
1002 
1003 	audio1 &= ~WM8990_AIF_FMT_MASK;
1004 
1005 	/* interface format */
1006 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1007 	case SND_SOC_DAIFMT_I2S:
1008 		audio1 |= WM8990_AIF_TMF_I2S;
1009 		audio1 &= ~WM8990_AIF_LRCLK_INV;
1010 		break;
1011 	case SND_SOC_DAIFMT_RIGHT_J:
1012 		audio1 |= WM8990_AIF_TMF_RIGHTJ;
1013 		audio1 &= ~WM8990_AIF_LRCLK_INV;
1014 		break;
1015 	case SND_SOC_DAIFMT_LEFT_J:
1016 		audio1 |= WM8990_AIF_TMF_LEFTJ;
1017 		audio1 &= ~WM8990_AIF_LRCLK_INV;
1018 		break;
1019 	case SND_SOC_DAIFMT_DSP_A:
1020 		audio1 |= WM8990_AIF_TMF_DSP;
1021 		audio1 &= ~WM8990_AIF_LRCLK_INV;
1022 		break;
1023 	case SND_SOC_DAIFMT_DSP_B:
1024 		audio1 |= WM8990_AIF_TMF_DSP | WM8990_AIF_LRCLK_INV;
1025 		break;
1026 	default:
1027 		return -EINVAL;
1028 	}
1029 
1030 	snd_soc_write(codec, WM8990_AUDIO_INTERFACE_1, audio1);
1031 	snd_soc_write(codec, WM8990_AUDIO_INTERFACE_3, audio3);
1032 	return 0;
1033 }
1034 
1035 static int wm8990_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1036 		int div_id, int div)
1037 {
1038 	struct snd_soc_codec *codec = codec_dai->codec;
1039 
1040 	switch (div_id) {
1041 	case WM8990_MCLK_DIV:
1042 		snd_soc_update_bits(codec, WM8990_CLOCKING_2,
1043 				    WM8990_MCLK_DIV_MASK, div);
1044 		break;
1045 	case WM8990_DACCLK_DIV:
1046 		snd_soc_update_bits(codec, WM8990_CLOCKING_2,
1047 				    WM8990_DAC_CLKDIV_MASK, div);
1048 		break;
1049 	case WM8990_ADCCLK_DIV:
1050 		snd_soc_update_bits(codec, WM8990_CLOCKING_2,
1051 				    WM8990_ADC_CLKDIV_MASK, div);
1052 		break;
1053 	case WM8990_BCLK_DIV:
1054 		snd_soc_update_bits(codec, WM8990_CLOCKING_1,
1055 				    WM8990_BCLK_DIV_MASK, div);
1056 		break;
1057 	default:
1058 		return -EINVAL;
1059 	}
1060 
1061 	return 0;
1062 }
1063 
1064 /*
1065  * Set PCM DAI bit size and sample rate.
1066  */
1067 static int wm8990_hw_params(struct snd_pcm_substream *substream,
1068 			    struct snd_pcm_hw_params *params,
1069 			    struct snd_soc_dai *dai)
1070 {
1071 	struct snd_soc_codec *codec = dai->codec;
1072 	u16 audio1 = snd_soc_read(codec, WM8990_AUDIO_INTERFACE_1);
1073 
1074 	audio1 &= ~WM8990_AIF_WL_MASK;
1075 	/* bit size */
1076 	switch (params_width(params)) {
1077 	case 16:
1078 		break;
1079 	case 20:
1080 		audio1 |= WM8990_AIF_WL_20BITS;
1081 		break;
1082 	case 24:
1083 		audio1 |= WM8990_AIF_WL_24BITS;
1084 		break;
1085 	case 32:
1086 		audio1 |= WM8990_AIF_WL_32BITS;
1087 		break;
1088 	}
1089 
1090 	snd_soc_write(codec, WM8990_AUDIO_INTERFACE_1, audio1);
1091 	return 0;
1092 }
1093 
1094 static int wm8990_mute(struct snd_soc_dai *dai, int mute)
1095 {
1096 	struct snd_soc_codec *codec = dai->codec;
1097 	u16 val;
1098 
1099 	val  = snd_soc_read(codec, WM8990_DAC_CTRL) & ~WM8990_DAC_MUTE;
1100 
1101 	if (mute)
1102 		snd_soc_write(codec, WM8990_DAC_CTRL, val | WM8990_DAC_MUTE);
1103 	else
1104 		snd_soc_write(codec, WM8990_DAC_CTRL, val);
1105 
1106 	return 0;
1107 }
1108 
1109 static int wm8990_set_bias_level(struct snd_soc_codec *codec,
1110 	enum snd_soc_bias_level level)
1111 {
1112 	struct wm8990_priv *wm8990 = snd_soc_codec_get_drvdata(codec);
1113 	int ret;
1114 
1115 	switch (level) {
1116 	case SND_SOC_BIAS_ON:
1117 		break;
1118 
1119 	case SND_SOC_BIAS_PREPARE:
1120 		/* VMID=2*50k */
1121 		snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
1122 				    WM8990_VMID_MODE_MASK, 0x2);
1123 		break;
1124 
1125 	case SND_SOC_BIAS_STANDBY:
1126 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1127 			ret = regcache_sync(wm8990->regmap);
1128 			if (ret < 0) {
1129 				dev_err(codec->dev, "Failed to sync cache: %d\n", ret);
1130 				return ret;
1131 			}
1132 
1133 			/* Enable all output discharge bits */
1134 			snd_soc_write(codec, WM8990_ANTIPOP1, WM8990_DIS_LLINE |
1135 				WM8990_DIS_RLINE | WM8990_DIS_OUT3 |
1136 				WM8990_DIS_OUT4 | WM8990_DIS_LOUT |
1137 				WM8990_DIS_ROUT);
1138 
1139 			/* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
1140 			snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_SOFTST |
1141 				     WM8990_BUFDCOPEN | WM8990_POBCTRL |
1142 				     WM8990_VMIDTOG);
1143 
1144 			/* Delay to allow output caps to discharge */
1145 			msleep(300);
1146 
1147 			/* Disable VMIDTOG */
1148 			snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_SOFTST |
1149 				     WM8990_BUFDCOPEN | WM8990_POBCTRL);
1150 
1151 			/* disable all output discharge bits */
1152 			snd_soc_write(codec, WM8990_ANTIPOP1, 0);
1153 
1154 			/* Enable outputs */
1155 			snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1b00);
1156 
1157 			msleep(50);
1158 
1159 			/* Enable VMID at 2x50k */
1160 			snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f02);
1161 
1162 			msleep(100);
1163 
1164 			/* Enable VREF */
1165 			snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f03);
1166 
1167 			msleep(600);
1168 
1169 			/* Enable BUFIOEN */
1170 			snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_SOFTST |
1171 				     WM8990_BUFDCOPEN | WM8990_POBCTRL |
1172 				     WM8990_BUFIOEN);
1173 
1174 			/* Disable outputs */
1175 			snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x3);
1176 
1177 			/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1178 			snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_BUFIOEN);
1179 
1180 			/* Enable workaround for ADC clocking issue. */
1181 			snd_soc_write(codec, WM8990_EXT_ACCESS_ENA, 0x2);
1182 			snd_soc_write(codec, WM8990_EXT_CTL1, 0xa003);
1183 			snd_soc_write(codec, WM8990_EXT_ACCESS_ENA, 0);
1184 		}
1185 
1186 		/* VMID=2*250k */
1187 		snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
1188 				    WM8990_VMID_MODE_MASK, 0x4);
1189 		break;
1190 
1191 	case SND_SOC_BIAS_OFF:
1192 		/* Enable POBCTRL and SOFT_ST */
1193 		snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_SOFTST |
1194 			WM8990_POBCTRL | WM8990_BUFIOEN);
1195 
1196 		/* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
1197 		snd_soc_write(codec, WM8990_ANTIPOP2, WM8990_SOFTST |
1198 			WM8990_BUFDCOPEN | WM8990_POBCTRL |
1199 			WM8990_BUFIOEN);
1200 
1201 		/* mute DAC */
1202 		snd_soc_update_bits(codec, WM8990_DAC_CTRL,
1203 				    WM8990_DAC_MUTE, WM8990_DAC_MUTE);
1204 
1205 		/* Enable any disabled outputs */
1206 		snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f03);
1207 
1208 		/* Disable VMID */
1209 		snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f01);
1210 
1211 		msleep(300);
1212 
1213 		/* Enable all output discharge bits */
1214 		snd_soc_write(codec, WM8990_ANTIPOP1, WM8990_DIS_LLINE |
1215 			WM8990_DIS_RLINE | WM8990_DIS_OUT3 |
1216 			WM8990_DIS_OUT4 | WM8990_DIS_LOUT |
1217 			WM8990_DIS_ROUT);
1218 
1219 		/* Disable VREF */
1220 		snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x0);
1221 
1222 		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1223 		snd_soc_write(codec, WM8990_ANTIPOP2, 0x0);
1224 
1225 		regcache_mark_dirty(wm8990->regmap);
1226 		break;
1227 	}
1228 
1229 	codec->dapm.bias_level = level;
1230 	return 0;
1231 }
1232 
1233 #define WM8990_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1234 	SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
1235 	SNDRV_PCM_RATE_48000)
1236 
1237 #define WM8990_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1238 	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1239 
1240 /*
1241  * The WM8990 supports 2 different and mutually exclusive DAI
1242  * configurations.
1243  *
1244  * 1. ADC/DAC on Primary Interface
1245  * 2. ADC on Primary Interface/DAC on secondary
1246  */
1247 static const struct snd_soc_dai_ops wm8990_dai_ops = {
1248 	.hw_params	= wm8990_hw_params,
1249 	.digital_mute	= wm8990_mute,
1250 	.set_fmt	= wm8990_set_dai_fmt,
1251 	.set_clkdiv	= wm8990_set_dai_clkdiv,
1252 	.set_pll	= wm8990_set_dai_pll,
1253 	.set_sysclk	= wm8990_set_dai_sysclk,
1254 };
1255 
1256 static struct snd_soc_dai_driver wm8990_dai = {
1257 /* ADC/DAC on primary */
1258 	.name = "wm8990-hifi",
1259 	.playback = {
1260 		.stream_name = "Playback",
1261 		.channels_min = 1,
1262 		.channels_max = 2,
1263 		.rates = WM8990_RATES,
1264 		.formats = WM8990_FORMATS,},
1265 	.capture = {
1266 		.stream_name = "Capture",
1267 		.channels_min = 1,
1268 		.channels_max = 2,
1269 		.rates = WM8990_RATES,
1270 		.formats = WM8990_FORMATS,},
1271 	.ops = &wm8990_dai_ops,
1272 };
1273 
1274 static int wm8990_suspend(struct snd_soc_codec *codec)
1275 {
1276 	wm8990_set_bias_level(codec, SND_SOC_BIAS_OFF);
1277 	return 0;
1278 }
1279 
1280 static int wm8990_resume(struct snd_soc_codec *codec)
1281 {
1282 	wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1283 	return 0;
1284 }
1285 
1286 /*
1287  * initialise the WM8990 driver
1288  * register the mixer and dsp interfaces with the kernel
1289  */
1290 static int wm8990_probe(struct snd_soc_codec *codec)
1291 {
1292 	wm8990_reset(codec);
1293 
1294 	/* charge output caps */
1295 	wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1296 
1297 	snd_soc_update_bits(codec, WM8990_AUDIO_INTERFACE_4,
1298 			    WM8990_ALRCGPIO1, WM8990_ALRCGPIO1);
1299 
1300 	snd_soc_update_bits(codec, WM8990_GPIO1_GPIO2,
1301 			    WM8990_GPIO1_SEL_MASK, 1);
1302 
1303 	snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
1304 			    WM8990_OPCLK_ENA, WM8990_OPCLK_ENA);
1305 
1306 	snd_soc_write(codec, WM8990_LEFT_OUTPUT_VOLUME, 0x50 | (1<<8));
1307 	snd_soc_write(codec, WM8990_RIGHT_OUTPUT_VOLUME, 0x50 | (1<<8));
1308 
1309 	return 0;
1310 }
1311 
1312 /* power down chip */
1313 static int wm8990_remove(struct snd_soc_codec *codec)
1314 {
1315 	wm8990_set_bias_level(codec, SND_SOC_BIAS_OFF);
1316 	return 0;
1317 }
1318 
1319 static struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
1320 	.probe =	wm8990_probe,
1321 	.remove =	wm8990_remove,
1322 	.suspend =	wm8990_suspend,
1323 	.resume =	wm8990_resume,
1324 	.set_bias_level = wm8990_set_bias_level,
1325 	.controls =	wm8990_snd_controls,
1326 	.num_controls = ARRAY_SIZE(wm8990_snd_controls),
1327 	.dapm_widgets = wm8990_dapm_widgets,
1328 	.num_dapm_widgets = ARRAY_SIZE(wm8990_dapm_widgets),
1329 	.dapm_routes =	wm8990_dapm_routes,
1330 	.num_dapm_routes = ARRAY_SIZE(wm8990_dapm_routes),
1331 };
1332 
1333 static const struct regmap_config wm8990_regmap = {
1334 	.reg_bits = 8,
1335 	.val_bits = 16,
1336 
1337 	.max_register = WM8990_PLL3,
1338 	.volatile_reg = wm8990_volatile_register,
1339 	.reg_defaults = wm8990_reg_defaults,
1340 	.num_reg_defaults = ARRAY_SIZE(wm8990_reg_defaults),
1341 	.cache_type = REGCACHE_RBTREE,
1342 };
1343 
1344 static int wm8990_i2c_probe(struct i2c_client *i2c,
1345 			    const struct i2c_device_id *id)
1346 {
1347 	struct wm8990_priv *wm8990;
1348 	int ret;
1349 
1350 	wm8990 = devm_kzalloc(&i2c->dev, sizeof(struct wm8990_priv),
1351 			      GFP_KERNEL);
1352 	if (wm8990 == NULL)
1353 		return -ENOMEM;
1354 
1355 	i2c_set_clientdata(i2c, wm8990);
1356 
1357 	ret = snd_soc_register_codec(&i2c->dev,
1358 			&soc_codec_dev_wm8990, &wm8990_dai, 1);
1359 
1360 	return ret;
1361 }
1362 
1363 static int wm8990_i2c_remove(struct i2c_client *client)
1364 {
1365 	snd_soc_unregister_codec(&client->dev);
1366 
1367 	return 0;
1368 }
1369 
1370 static const struct i2c_device_id wm8990_i2c_id[] = {
1371 	{ "wm8990", 0 },
1372 	{ }
1373 };
1374 MODULE_DEVICE_TABLE(i2c, wm8990_i2c_id);
1375 
1376 static struct i2c_driver wm8990_i2c_driver = {
1377 	.driver = {
1378 		.name = "wm8990",
1379 		.owner = THIS_MODULE,
1380 	},
1381 	.probe =    wm8990_i2c_probe,
1382 	.remove =   wm8990_i2c_remove,
1383 	.id_table = wm8990_i2c_id,
1384 };
1385 
1386 module_i2c_driver(wm8990_i2c_driver);
1387 
1388 MODULE_DESCRIPTION("ASoC WM8990 driver");
1389 MODULE_AUTHOR("Liam Girdwood");
1390 MODULE_LICENSE("GPL");
1391