xref: /openbmc/linux/sound/soc/codecs/wm8991.c (revision ba61bb17)
1 /*
2  * wm8991.c  --  WM8991 ALSA Soc Audio driver
3  *
4  * Copyright 2007-2010 Wolfson Microelectronics PLC.
5  * Author: Graeme Gregory
6  *         Graeme.Gregory@wolfsonmicro.com
7  *
8  *  This program is free software; you can redistribute  it and/or modify it
9  *  under  the terms of  the GNU General  Public License as published by the
10  *  Free Software Foundation;  either version 2 of the  License, or (at your
11  *  option) any later version.
12  */
13 
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/delay.h>
19 #include <linux/pm.h>
20 #include <linux/i2c.h>
21 #include <linux/regmap.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/initval.h>
29 #include <sound/tlv.h>
30 #include <asm/div64.h>
31 
32 #include "wm8991.h"
33 
34 struct wm8991_priv {
35 	struct regmap *regmap;
36 	unsigned int pcmclk;
37 };
38 
39 static const struct reg_default wm8991_reg_defaults[] = {
40 	{  1, 0x0000 },     /* R1  - Power Management (1) */
41 	{  2, 0x6000 },     /* R2  - Power Management (2) */
42 	{  3, 0x0000 },     /* R3  - Power Management (3) */
43 	{  4, 0x4050 },     /* R4  - Audio Interface (1) */
44 	{  5, 0x4000 },     /* R5  - Audio Interface (2) */
45 	{  6, 0x01C8 },     /* R6  - Clocking (1) */
46 	{  7, 0x0000 },     /* R7  - Clocking (2) */
47 	{  8, 0x0040 },     /* R8  - Audio Interface (3) */
48 	{  9, 0x0040 },     /* R9  - Audio Interface (4) */
49 	{ 10, 0x0004 },     /* R10 - DAC CTRL */
50 	{ 11, 0x00C0 },     /* R11 - Left DAC Digital Volume */
51 	{ 12, 0x00C0 },     /* R12 - Right DAC Digital Volume */
52 	{ 13, 0x0000 },     /* R13 - Digital Side Tone */
53 	{ 14, 0x0100 },     /* R14 - ADC CTRL */
54 	{ 15, 0x00C0 },     /* R15 - Left ADC Digital Volume */
55 	{ 16, 0x00C0 },     /* R16 - Right ADC Digital Volume */
56 
57 	{ 18, 0x0000 },     /* R18 - GPIO CTRL 1 */
58 	{ 19, 0x1000 },     /* R19 - GPIO1 & GPIO2 */
59 	{ 20, 0x1010 },     /* R20 - GPIO3 & GPIO4 */
60 	{ 21, 0x1010 },     /* R21 - GPIO5 & GPIO6 */
61 	{ 22, 0x8000 },     /* R22 - GPIOCTRL 2 */
62 	{ 23, 0x0800 },     /* R23 - GPIO_POL */
63 	{ 24, 0x008B },     /* R24 - Left Line Input 1&2 Volume */
64 	{ 25, 0x008B },     /* R25 - Left Line Input 3&4 Volume */
65 	{ 26, 0x008B },     /* R26 - Right Line Input 1&2 Volume */
66 	{ 27, 0x008B },     /* R27 - Right Line Input 3&4 Volume */
67 	{ 28, 0x0000 },     /* R28 - Left Output Volume */
68 	{ 29, 0x0000 },     /* R29 - Right Output Volume */
69 	{ 30, 0x0066 },     /* R30 - Line Outputs Volume */
70 	{ 31, 0x0022 },     /* R31 - Out3/4 Volume */
71 	{ 32, 0x0079 },     /* R32 - Left OPGA Volume */
72 	{ 33, 0x0079 },     /* R33 - Right OPGA Volume */
73 	{ 34, 0x0003 },     /* R34 - Speaker Volume */
74 	{ 35, 0x0003 },     /* R35 - ClassD1 */
75 
76 	{ 37, 0x0100 },     /* R37 - ClassD3 */
77 
78 	{ 39, 0x0000 },     /* R39 - Input Mixer1 */
79 	{ 40, 0x0000 },     /* R40 - Input Mixer2 */
80 	{ 41, 0x0000 },     /* R41 - Input Mixer3 */
81 	{ 42, 0x0000 },     /* R42 - Input Mixer4 */
82 	{ 43, 0x0000 },     /* R43 - Input Mixer5 */
83 	{ 44, 0x0000 },     /* R44 - Input Mixer6 */
84 	{ 45, 0x0000 },     /* R45 - Output Mixer1 */
85 	{ 46, 0x0000 },     /* R46 - Output Mixer2 */
86 	{ 47, 0x0000 },     /* R47 - Output Mixer3 */
87 	{ 48, 0x0000 },     /* R48 - Output Mixer4 */
88 	{ 49, 0x0000 },     /* R49 - Output Mixer5 */
89 	{ 50, 0x0000 },     /* R50 - Output Mixer6 */
90 	{ 51, 0x0180 },     /* R51 - Out3/4 Mixer */
91 	{ 52, 0x0000 },     /* R52 - Line Mixer1 */
92 	{ 53, 0x0000 },     /* R53 - Line Mixer2 */
93 	{ 54, 0x0000 },     /* R54 - Speaker Mixer */
94 	{ 55, 0x0000 },     /* R55 - Additional Control */
95 	{ 56, 0x0000 },     /* R56 - AntiPOP1 */
96 	{ 57, 0x0000 },     /* R57 - AntiPOP2 */
97 	{ 58, 0x0000 },     /* R58 - MICBIAS */
98 
99 	{ 60, 0x0008 },     /* R60 - PLL1 */
100 	{ 61, 0x0031 },     /* R61 - PLL2 */
101 	{ 62, 0x0026 },     /* R62 - PLL3 */
102 };
103 
104 static bool wm8991_volatile(struct device *dev, unsigned int reg)
105 {
106 	switch (reg) {
107 	case WM8991_RESET:
108 		return true;
109 	default:
110 		return false;
111 	}
112 }
113 
114 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_pga_tlv, -1650, 150, 0);
115 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(out_mix_tlv, -2100, 300, 0);
116 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_pga_tlv,
117 	0x00, 0x2f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(SNDRV_CTL_TLVD_DB_GAIN_MUTE, 0, 1),
118 	0x30, 0x7f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-7300, 100, 0),
119 );
120 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_dac_tlv,
121 	0x00, 0xbf, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
122 	0xc0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
123 );
124 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(in_adc_tlv,
125 	0x00, 0xef, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
126 	0xf0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(17625, 0, 0),
127 );
128 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_sidetone_tlv,
129 	0x00, 0x0c, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-3600, 300, 0),
130 	0x0d, 0x0f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
131 );
132 
133 static int wm899x_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
134 				      struct snd_ctl_elem_value *ucontrol)
135 {
136 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
137 	int reg = kcontrol->private_value & 0xff;
138 	int ret;
139 	u16 val;
140 
141 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
142 	if (ret < 0)
143 		return ret;
144 
145 	/* now hit the volume update bits (always bit 8) */
146 	val = snd_soc_component_read32(component, reg);
147 	return snd_soc_component_write(component, reg, val | 0x0100);
148 }
149 
150 static const char *wm8991_digital_sidetone[] =
151 {"None", "Left ADC", "Right ADC", "Reserved"};
152 
153 static SOC_ENUM_SINGLE_DECL(wm8991_left_digital_sidetone_enum,
154 			    WM8991_DIGITAL_SIDE_TONE,
155 			    WM8991_ADC_TO_DACL_SHIFT,
156 			    wm8991_digital_sidetone);
157 
158 static SOC_ENUM_SINGLE_DECL(wm8991_right_digital_sidetone_enum,
159 			    WM8991_DIGITAL_SIDE_TONE,
160 			    WM8991_ADC_TO_DACR_SHIFT,
161 			    wm8991_digital_sidetone);
162 
163 static const char *wm8991_adcmode[] =
164 {"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
165 
166 static SOC_ENUM_SINGLE_DECL(wm8991_right_adcmode_enum,
167 			    WM8991_ADC_CTRL,
168 			    WM8991_ADC_HPF_CUT_SHIFT,
169 			    wm8991_adcmode);
170 
171 static const struct snd_kcontrol_new wm8991_snd_controls[] = {
172 	/* INMIXL */
173 	SOC_SINGLE("LIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L12MNBST_BIT, 1, 0),
174 	SOC_SINGLE("LIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L34MNBST_BIT, 1, 0),
175 	/* INMIXR */
176 	SOC_SINGLE("RIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R12MNBST_BIT, 1, 0),
177 	SOC_SINGLE("RIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R34MNBST_BIT, 1, 0),
178 
179 	/* LOMIX */
180 	SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER3,
181 		WM8991_LLI3LOVOL_SHIFT, WM8991_LLI3LOVOL_MASK, 1, out_mix_tlv),
182 	SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
183 		WM8991_LR12LOVOL_SHIFT, WM8991_LR12LOVOL_MASK, 1, out_mix_tlv),
184 	SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
185 		WM8991_LL12LOVOL_SHIFT, WM8991_LL12LOVOL_MASK, 1, out_mix_tlv),
186 	SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER5,
187 		WM8991_LRI3LOVOL_SHIFT, WM8991_LRI3LOVOL_MASK, 1, out_mix_tlv),
188 	SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
189 		WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
190 	SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
191 		WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
192 
193 	/* ROMIX */
194 	SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER4,
195 		WM8991_RRI3ROVOL_SHIFT, WM8991_RRI3ROVOL_MASK, 1, out_mix_tlv),
196 	SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
197 		WM8991_RL12ROVOL_SHIFT, WM8991_RL12ROVOL_MASK, 1, out_mix_tlv),
198 	SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
199 		WM8991_RR12ROVOL_SHIFT, WM8991_RR12ROVOL_MASK, 1, out_mix_tlv),
200 	SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER6,
201 		WM8991_RLI3ROVOL_SHIFT, WM8991_RLI3ROVOL_MASK, 1, out_mix_tlv),
202 	SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
203 		WM8991_RLBROVOL_SHIFT, WM8991_RLBROVOL_MASK, 1, out_mix_tlv),
204 	SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
205 		WM8991_RRBROVOL_SHIFT, WM8991_RRBROVOL_MASK, 1, out_mix_tlv),
206 
207 	/* LOUT */
208 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8991_LEFT_OUTPUT_VOLUME,
209 		WM8991_LOUTVOL_SHIFT, WM8991_LOUTVOL_MASK, 0, out_pga_tlv),
210 	SOC_SINGLE("LOUT ZC", WM8991_LEFT_OUTPUT_VOLUME, WM8991_LOZC_BIT, 1, 0),
211 
212 	/* ROUT */
213 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8991_RIGHT_OUTPUT_VOLUME,
214 		WM8991_ROUTVOL_SHIFT, WM8991_ROUTVOL_MASK, 0, out_pga_tlv),
215 	SOC_SINGLE("ROUT ZC", WM8991_RIGHT_OUTPUT_VOLUME, WM8991_ROZC_BIT, 1, 0),
216 
217 	/* LOPGA */
218 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8991_LEFT_OPGA_VOLUME,
219 		WM8991_LOPGAVOL_SHIFT, WM8991_LOPGAVOL_MASK, 0, out_pga_tlv),
220 	SOC_SINGLE("LOPGA ZC Switch", WM8991_LEFT_OPGA_VOLUME,
221 		WM8991_LOPGAZC_BIT, 1, 0),
222 
223 	/* ROPGA */
224 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8991_RIGHT_OPGA_VOLUME,
225 		WM8991_ROPGAVOL_SHIFT, WM8991_ROPGAVOL_MASK, 0, out_pga_tlv),
226 	SOC_SINGLE("ROPGA ZC Switch", WM8991_RIGHT_OPGA_VOLUME,
227 		WM8991_ROPGAZC_BIT, 1, 0),
228 
229 	SOC_SINGLE("LON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
230 		WM8991_LONMUTE_BIT, 1, 0),
231 	SOC_SINGLE("LOP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
232 		WM8991_LOPMUTE_BIT, 1, 0),
233 	SOC_SINGLE("LOP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
234 		WM8991_LOATTN_BIT, 1, 0),
235 	SOC_SINGLE("RON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
236 		WM8991_RONMUTE_BIT, 1, 0),
237 	SOC_SINGLE("ROP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
238 		WM8991_ROPMUTE_BIT, 1, 0),
239 	SOC_SINGLE("ROP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
240 		WM8991_ROATTN_BIT, 1, 0),
241 
242 	SOC_SINGLE("OUT3 Mute Switch", WM8991_OUT3_4_VOLUME,
243 		WM8991_OUT3MUTE_BIT, 1, 0),
244 	SOC_SINGLE("OUT3 Attenuation Switch", WM8991_OUT3_4_VOLUME,
245 		WM8991_OUT3ATTN_BIT, 1, 0),
246 
247 	SOC_SINGLE("OUT4 Mute Switch", WM8991_OUT3_4_VOLUME,
248 		WM8991_OUT4MUTE_BIT, 1, 0),
249 	SOC_SINGLE("OUT4 Attenuation Switch", WM8991_OUT3_4_VOLUME,
250 		WM8991_OUT4ATTN_BIT, 1, 0),
251 
252 	SOC_SINGLE("Speaker Mode Switch", WM8991_CLASSD1,
253 		WM8991_CDMODE_BIT, 1, 0),
254 
255 	SOC_SINGLE("Speaker Output Attenuation Volume", WM8991_SPEAKER_VOLUME,
256 		WM8991_SPKVOL_SHIFT, WM8991_SPKVOL_MASK, 0),
257 	SOC_SINGLE("Speaker DC Boost Volume", WM8991_CLASSD3,
258 		WM8991_DCGAIN_SHIFT, WM8991_DCGAIN_MASK, 0),
259 	SOC_SINGLE("Speaker AC Boost Volume", WM8991_CLASSD3,
260 		WM8991_ACGAIN_SHIFT, WM8991_ACGAIN_MASK, 0),
261 
262 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
263 		WM8991_LEFT_DAC_DIGITAL_VOLUME,
264 		WM8991_DACL_VOL_SHIFT,
265 		WM8991_DACL_VOL_MASK,
266 		0,
267 		out_dac_tlv),
268 
269 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
270 		WM8991_RIGHT_DAC_DIGITAL_VOLUME,
271 		WM8991_DACR_VOL_SHIFT,
272 		WM8991_DACR_VOL_MASK,
273 		0,
274 		out_dac_tlv),
275 
276 	SOC_ENUM("Left Digital Sidetone", wm8991_left_digital_sidetone_enum),
277 	SOC_ENUM("Right Digital Sidetone", wm8991_right_digital_sidetone_enum),
278 
279 	SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
280 		WM8991_ADCL_DAC_SVOL_SHIFT, WM8991_ADCL_DAC_SVOL_MASK, 0,
281 		out_sidetone_tlv),
282 	SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
283 		WM8991_ADCR_DAC_SVOL_SHIFT, WM8991_ADCR_DAC_SVOL_MASK, 0,
284 		out_sidetone_tlv),
285 
286 	SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8991_ADC_CTRL,
287 		WM8991_ADC_HPF_ENA_BIT, 1, 0),
288 
289 	SOC_ENUM("ADC HPF Mode", wm8991_right_adcmode_enum),
290 
291 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
292 		WM8991_LEFT_ADC_DIGITAL_VOLUME,
293 		WM8991_ADCL_VOL_SHIFT,
294 		WM8991_ADCL_VOL_MASK,
295 		0,
296 		in_adc_tlv),
297 
298 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
299 		WM8991_RIGHT_ADC_DIGITAL_VOLUME,
300 		WM8991_ADCR_VOL_SHIFT,
301 		WM8991_ADCR_VOL_MASK,
302 		0,
303 		in_adc_tlv),
304 
305 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
306 		WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
307 		WM8991_LIN12VOL_SHIFT,
308 		WM8991_LIN12VOL_MASK,
309 		0,
310 		in_pga_tlv),
311 
312 	SOC_SINGLE("LIN12 ZC Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
313 		WM8991_LI12ZC_BIT, 1, 0),
314 
315 	SOC_SINGLE("LIN12 Mute Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
316 		WM8991_LI12MUTE_BIT, 1, 0),
317 
318 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
319 		WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
320 		WM8991_LIN34VOL_SHIFT,
321 		WM8991_LIN34VOL_MASK,
322 		0,
323 		in_pga_tlv),
324 
325 	SOC_SINGLE("LIN34 ZC Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
326 		WM8991_LI34ZC_BIT, 1, 0),
327 
328 	SOC_SINGLE("LIN34 Mute Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
329 		WM8991_LI34MUTE_BIT, 1, 0),
330 
331 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
332 		WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
333 		WM8991_RIN12VOL_SHIFT,
334 		WM8991_RIN12VOL_MASK,
335 		0,
336 		in_pga_tlv),
337 
338 	SOC_SINGLE("RIN12 ZC Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
339 		WM8991_RI12ZC_BIT, 1, 0),
340 
341 	SOC_SINGLE("RIN12 Mute Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
342 		WM8991_RI12MUTE_BIT, 1, 0),
343 
344 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
345 		WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
346 		WM8991_RIN34VOL_SHIFT,
347 		WM8991_RIN34VOL_MASK,
348 		0,
349 		in_pga_tlv),
350 
351 	SOC_SINGLE("RIN34 ZC Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
352 		WM8991_RI34ZC_BIT, 1, 0),
353 
354 	SOC_SINGLE("RIN34 Mute Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
355 		WM8991_RI34MUTE_BIT, 1, 0),
356 };
357 
358 /*
359  * _DAPM_ Controls
360  */
361 static int outmixer_event(struct snd_soc_dapm_widget *w,
362 			  struct snd_kcontrol *kcontrol, int event)
363 {
364 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
365 	u32 reg_shift = kcontrol->private_value & 0xfff;
366 	int ret = 0;
367 	u16 reg;
368 
369 	switch (reg_shift) {
370 	case WM8991_SPEAKER_MIXER | (WM8991_LDSPK_BIT << 8):
371 		reg = snd_soc_component_read32(component, WM8991_OUTPUT_MIXER1);
372 		if (reg & WM8991_LDLO) {
373 			printk(KERN_WARNING
374 			       "Cannot set as Output Mixer 1 LDLO Set\n");
375 			ret = -1;
376 		}
377 		break;
378 
379 	case WM8991_SPEAKER_MIXER | (WM8991_RDSPK_BIT << 8):
380 		reg = snd_soc_component_read32(component, WM8991_OUTPUT_MIXER2);
381 		if (reg & WM8991_RDRO) {
382 			printk(KERN_WARNING
383 			       "Cannot set as Output Mixer 2 RDRO Set\n");
384 			ret = -1;
385 		}
386 		break;
387 
388 	case WM8991_OUTPUT_MIXER1 | (WM8991_LDLO_BIT << 8):
389 		reg = snd_soc_component_read32(component, WM8991_SPEAKER_MIXER);
390 		if (reg & WM8991_LDSPK) {
391 			printk(KERN_WARNING
392 			       "Cannot set as Speaker Mixer LDSPK Set\n");
393 			ret = -1;
394 		}
395 		break;
396 
397 	case WM8991_OUTPUT_MIXER2 | (WM8991_RDRO_BIT << 8):
398 		reg = snd_soc_component_read32(component, WM8991_SPEAKER_MIXER);
399 		if (reg & WM8991_RDSPK) {
400 			printk(KERN_WARNING
401 			       "Cannot set as Speaker Mixer RDSPK Set\n");
402 			ret = -1;
403 		}
404 		break;
405 	}
406 
407 	return ret;
408 }
409 
410 /* INMIX dB values */
411 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_mix_tlv, -1200, 300, 1);
412 
413 /* Left In PGA Connections */
414 static const struct snd_kcontrol_new wm8991_dapm_lin12_pga_controls[] = {
415 	SOC_DAPM_SINGLE("LIN1 Switch", WM8991_INPUT_MIXER2, WM8991_LMN1_BIT, 1, 0),
416 	SOC_DAPM_SINGLE("LIN2 Switch", WM8991_INPUT_MIXER2, WM8991_LMP2_BIT, 1, 0),
417 };
418 
419 static const struct snd_kcontrol_new wm8991_dapm_lin34_pga_controls[] = {
420 	SOC_DAPM_SINGLE("LIN3 Switch", WM8991_INPUT_MIXER2, WM8991_LMN3_BIT, 1, 0),
421 	SOC_DAPM_SINGLE("LIN4 Switch", WM8991_INPUT_MIXER2, WM8991_LMP4_BIT, 1, 0),
422 };
423 
424 /* Right In PGA Connections */
425 static const struct snd_kcontrol_new wm8991_dapm_rin12_pga_controls[] = {
426 	SOC_DAPM_SINGLE("RIN1 Switch", WM8991_INPUT_MIXER2, WM8991_RMN1_BIT, 1, 0),
427 	SOC_DAPM_SINGLE("RIN2 Switch", WM8991_INPUT_MIXER2, WM8991_RMP2_BIT, 1, 0),
428 };
429 
430 static const struct snd_kcontrol_new wm8991_dapm_rin34_pga_controls[] = {
431 	SOC_DAPM_SINGLE("RIN3 Switch", WM8991_INPUT_MIXER2, WM8991_RMN3_BIT, 1, 0),
432 	SOC_DAPM_SINGLE("RIN4 Switch", WM8991_INPUT_MIXER2, WM8991_RMP4_BIT, 1, 0),
433 };
434 
435 /* INMIXL */
436 static const struct snd_kcontrol_new wm8991_dapm_inmixl_controls[] = {
437 	SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8991_INPUT_MIXER3,
438 		WM8991_LDBVOL_SHIFT, WM8991_LDBVOL_MASK, 0, in_mix_tlv),
439 	SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8991_INPUT_MIXER5, WM8991_LI2BVOL_SHIFT,
440 		7, 0, in_mix_tlv),
441 	SOC_DAPM_SINGLE("LINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
442 		1, 0),
443 	SOC_DAPM_SINGLE("LINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
444 		1, 0),
445 };
446 
447 /* INMIXR */
448 static const struct snd_kcontrol_new wm8991_dapm_inmixr_controls[] = {
449 	SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8991_INPUT_MIXER4,
450 		WM8991_RDBVOL_SHIFT, WM8991_RDBVOL_MASK, 0, in_mix_tlv),
451 	SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8991_INPUT_MIXER6, WM8991_RI2BVOL_SHIFT,
452 		7, 0, in_mix_tlv),
453 	SOC_DAPM_SINGLE("RINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
454 		1, 0),
455 	SOC_DAPM_SINGLE("RINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
456 		1, 0),
457 };
458 
459 /* AINLMUX */
460 static const char *wm8991_ainlmux[] =
461 {"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
462 
463 static SOC_ENUM_SINGLE_DECL(wm8991_ainlmux_enum,
464 			    WM8991_INPUT_MIXER1, WM8991_AINLMODE_SHIFT,
465 			    wm8991_ainlmux);
466 
467 static const struct snd_kcontrol_new wm8991_dapm_ainlmux_controls =
468 	SOC_DAPM_ENUM("Route", wm8991_ainlmux_enum);
469 
470 /* DIFFINL */
471 
472 /* AINRMUX */
473 static const char *wm8991_ainrmux[] =
474 {"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
475 
476 static SOC_ENUM_SINGLE_DECL(wm8991_ainrmux_enum,
477 			    WM8991_INPUT_MIXER1, WM8991_AINRMODE_SHIFT,
478 			    wm8991_ainrmux);
479 
480 static const struct snd_kcontrol_new wm8991_dapm_ainrmux_controls =
481 	SOC_DAPM_ENUM("Route", wm8991_ainrmux_enum);
482 
483 /* RXVOICE */
484 static const struct snd_kcontrol_new wm8991_dapm_rxvoice_controls[] = {
485 	SOC_DAPM_SINGLE_TLV("LIN4RXN", WM8991_INPUT_MIXER5, WM8991_LR4BVOL_SHIFT,
486 		WM8991_LR4BVOL_MASK, 0, in_mix_tlv),
487 	SOC_DAPM_SINGLE_TLV("RIN4RXP", WM8991_INPUT_MIXER6, WM8991_RL4BVOL_SHIFT,
488 		WM8991_RL4BVOL_MASK, 0, in_mix_tlv),
489 };
490 
491 /* LOMIX */
492 static const struct snd_kcontrol_new wm8991_dapm_lomix_controls[] = {
493 	SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
494 		WM8991_LRBLO_BIT, 1, 0),
495 	SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
496 		WM8991_LLBLO_BIT, 1, 0),
497 	SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
498 		WM8991_LRI3LO_BIT, 1, 0),
499 	SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
500 		WM8991_LLI3LO_BIT, 1, 0),
501 	SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
502 		WM8991_LR12LO_BIT, 1, 0),
503 	SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
504 		WM8991_LL12LO_BIT, 1, 0),
505 	SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8991_OUTPUT_MIXER1,
506 		WM8991_LDLO_BIT, 1, 0),
507 };
508 
509 /* ROMIX */
510 static const struct snd_kcontrol_new wm8991_dapm_romix_controls[] = {
511 	SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
512 		WM8991_RLBRO_BIT, 1, 0),
513 	SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
514 		WM8991_RRBRO_BIT, 1, 0),
515 	SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
516 		WM8991_RLI3RO_BIT, 1, 0),
517 	SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
518 		WM8991_RRI3RO_BIT, 1, 0),
519 	SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
520 		WM8991_RL12RO_BIT, 1, 0),
521 	SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
522 		WM8991_RR12RO_BIT, 1, 0),
523 	SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8991_OUTPUT_MIXER2,
524 		WM8991_RDRO_BIT, 1, 0),
525 };
526 
527 /* LONMIX */
528 static const struct snd_kcontrol_new wm8991_dapm_lonmix_controls[] = {
529 	SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
530 		WM8991_LLOPGALON_BIT, 1, 0),
531 	SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER1,
532 		WM8991_LROPGALON_BIT, 1, 0),
533 	SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8991_LINE_MIXER1,
534 		WM8991_LOPLON_BIT, 1, 0),
535 };
536 
537 /* LOPMIX */
538 static const struct snd_kcontrol_new wm8991_dapm_lopmix_controls[] = {
539 	SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER1,
540 		WM8991_LR12LOP_BIT, 1, 0),
541 	SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER1,
542 		WM8991_LL12LOP_BIT, 1, 0),
543 	SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
544 		WM8991_LLOPGALOP_BIT, 1, 0),
545 };
546 
547 /* RONMIX */
548 static const struct snd_kcontrol_new wm8991_dapm_ronmix_controls[] = {
549 	SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
550 		WM8991_RROPGARON_BIT, 1, 0),
551 	SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER2,
552 		WM8991_RLOPGARON_BIT, 1, 0),
553 	SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8991_LINE_MIXER2,
554 		WM8991_ROPRON_BIT, 1, 0),
555 };
556 
557 /* ROPMIX */
558 static const struct snd_kcontrol_new wm8991_dapm_ropmix_controls[] = {
559 	SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER2,
560 		WM8991_RL12ROP_BIT, 1, 0),
561 	SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER2,
562 		WM8991_RR12ROP_BIT, 1, 0),
563 	SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
564 		WM8991_RROPGAROP_BIT, 1, 0),
565 };
566 
567 /* OUT3MIX */
568 static const struct snd_kcontrol_new wm8991_dapm_out3mix_controls[] = {
569 	SOC_DAPM_SINGLE("OUT3MIX LIN4RXN Bypass Switch", WM8991_OUT3_4_MIXER,
570 		WM8991_LI4O3_BIT, 1, 0),
571 	SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8991_OUT3_4_MIXER,
572 		WM8991_LPGAO3_BIT, 1, 0),
573 };
574 
575 /* OUT4MIX */
576 static const struct snd_kcontrol_new wm8991_dapm_out4mix_controls[] = {
577 	SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8991_OUT3_4_MIXER,
578 		WM8991_RPGAO4_BIT, 1, 0),
579 	SOC_DAPM_SINGLE("OUT4MIX RIN4RXP Bypass Switch", WM8991_OUT3_4_MIXER,
580 		WM8991_RI4O4_BIT, 1, 0),
581 };
582 
583 /* SPKMIX */
584 static const struct snd_kcontrol_new wm8991_dapm_spkmix_controls[] = {
585 	SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
586 		WM8991_LI2SPK_BIT, 1, 0),
587 	SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8991_SPEAKER_MIXER,
588 		WM8991_LB2SPK_BIT, 1, 0),
589 	SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8991_SPEAKER_MIXER,
590 		WM8991_LOPGASPK_BIT, 1, 0),
591 	SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8991_SPEAKER_MIXER,
592 		WM8991_LDSPK_BIT, 1, 0),
593 	SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8991_SPEAKER_MIXER,
594 		WM8991_RDSPK_BIT, 1, 0),
595 	SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8991_SPEAKER_MIXER,
596 		WM8991_ROPGASPK_BIT, 1, 0),
597 	SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8991_SPEAKER_MIXER,
598 		WM8991_RL12ROP_BIT, 1, 0),
599 	SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
600 		WM8991_RI2SPK_BIT, 1, 0),
601 };
602 
603 static const struct snd_soc_dapm_widget wm8991_dapm_widgets[] = {
604 	/* Input Side */
605 	/* Input Lines */
606 	SND_SOC_DAPM_INPUT("LIN1"),
607 	SND_SOC_DAPM_INPUT("LIN2"),
608 	SND_SOC_DAPM_INPUT("LIN3"),
609 	SND_SOC_DAPM_INPUT("LIN4RXN"),
610 	SND_SOC_DAPM_INPUT("RIN3"),
611 	SND_SOC_DAPM_INPUT("RIN4RXP"),
612 	SND_SOC_DAPM_INPUT("RIN1"),
613 	SND_SOC_DAPM_INPUT("RIN2"),
614 	SND_SOC_DAPM_INPUT("Internal ADC Source"),
615 
616 	SND_SOC_DAPM_SUPPLY("INL", WM8991_POWER_MANAGEMENT_2,
617 			    WM8991_AINL_ENA_BIT, 0, NULL, 0),
618 	SND_SOC_DAPM_SUPPLY("INR", WM8991_POWER_MANAGEMENT_2,
619 			    WM8991_AINR_ENA_BIT, 0, NULL, 0),
620 
621 	/* DACs */
622 	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8991_POWER_MANAGEMENT_2,
623 		WM8991_ADCL_ENA_BIT, 0),
624 	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8991_POWER_MANAGEMENT_2,
625 		WM8991_ADCR_ENA_BIT, 0),
626 
627 	/* Input PGAs */
628 	SND_SOC_DAPM_MIXER("LIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN12_ENA_BIT,
629 		0, &wm8991_dapm_lin12_pga_controls[0],
630 		ARRAY_SIZE(wm8991_dapm_lin12_pga_controls)),
631 	SND_SOC_DAPM_MIXER("LIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN34_ENA_BIT,
632 		0, &wm8991_dapm_lin34_pga_controls[0],
633 		ARRAY_SIZE(wm8991_dapm_lin34_pga_controls)),
634 	SND_SOC_DAPM_MIXER("RIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN12_ENA_BIT,
635 		0, &wm8991_dapm_rin12_pga_controls[0],
636 		ARRAY_SIZE(wm8991_dapm_rin12_pga_controls)),
637 	SND_SOC_DAPM_MIXER("RIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN34_ENA_BIT,
638 		0, &wm8991_dapm_rin34_pga_controls[0],
639 		ARRAY_SIZE(wm8991_dapm_rin34_pga_controls)),
640 
641 	/* INMIXL */
642 	SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
643 		&wm8991_dapm_inmixl_controls[0],
644 		ARRAY_SIZE(wm8991_dapm_inmixl_controls)),
645 
646 	/* AINLMUX */
647 	SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0,
648 		&wm8991_dapm_ainlmux_controls),
649 
650 	/* INMIXR */
651 	SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
652 		&wm8991_dapm_inmixr_controls[0],
653 		ARRAY_SIZE(wm8991_dapm_inmixr_controls)),
654 
655 	/* AINRMUX */
656 	SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0,
657 		&wm8991_dapm_ainrmux_controls),
658 
659 	/* Output Side */
660 	/* DACs */
661 	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8991_POWER_MANAGEMENT_3,
662 		WM8991_DACL_ENA_BIT, 0),
663 	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8991_POWER_MANAGEMENT_3,
664 		WM8991_DACR_ENA_BIT, 0),
665 
666 	/* LOMIX */
667 	SND_SOC_DAPM_MIXER_E("LOMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOMIX_ENA_BIT,
668 		0, &wm8991_dapm_lomix_controls[0],
669 		ARRAY_SIZE(wm8991_dapm_lomix_controls),
670 		outmixer_event, SND_SOC_DAPM_PRE_REG),
671 
672 	/* LONMIX */
673 	SND_SOC_DAPM_MIXER("LONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LON_ENA_BIT, 0,
674 		&wm8991_dapm_lonmix_controls[0],
675 		ARRAY_SIZE(wm8991_dapm_lonmix_controls)),
676 
677 	/* LOPMIX */
678 	SND_SOC_DAPM_MIXER("LOPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOP_ENA_BIT, 0,
679 		&wm8991_dapm_lopmix_controls[0],
680 		ARRAY_SIZE(wm8991_dapm_lopmix_controls)),
681 
682 	/* OUT3MIX */
683 	SND_SOC_DAPM_MIXER("OUT3MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT3_ENA_BIT, 0,
684 		&wm8991_dapm_out3mix_controls[0],
685 		ARRAY_SIZE(wm8991_dapm_out3mix_controls)),
686 
687 	/* SPKMIX */
688 	SND_SOC_DAPM_MIXER_E("SPKMIX", WM8991_POWER_MANAGEMENT_1, WM8991_SPK_ENA_BIT, 0,
689 		&wm8991_dapm_spkmix_controls[0],
690 		ARRAY_SIZE(wm8991_dapm_spkmix_controls), outmixer_event,
691 		SND_SOC_DAPM_PRE_REG),
692 
693 	/* OUT4MIX */
694 	SND_SOC_DAPM_MIXER("OUT4MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT4_ENA_BIT, 0,
695 		&wm8991_dapm_out4mix_controls[0],
696 		ARRAY_SIZE(wm8991_dapm_out4mix_controls)),
697 
698 	/* ROPMIX */
699 	SND_SOC_DAPM_MIXER("ROPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROP_ENA_BIT, 0,
700 		&wm8991_dapm_ropmix_controls[0],
701 		ARRAY_SIZE(wm8991_dapm_ropmix_controls)),
702 
703 	/* RONMIX */
704 	SND_SOC_DAPM_MIXER("RONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_RON_ENA_BIT, 0,
705 		&wm8991_dapm_ronmix_controls[0],
706 		ARRAY_SIZE(wm8991_dapm_ronmix_controls)),
707 
708 	/* ROMIX */
709 	SND_SOC_DAPM_MIXER_E("ROMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROMIX_ENA_BIT,
710 		0, &wm8991_dapm_romix_controls[0],
711 		ARRAY_SIZE(wm8991_dapm_romix_controls),
712 		outmixer_event, SND_SOC_DAPM_PRE_REG),
713 
714 	/* LOUT PGA */
715 	SND_SOC_DAPM_PGA("LOUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_LOUT_ENA_BIT, 0,
716 		NULL, 0),
717 
718 	/* ROUT PGA */
719 	SND_SOC_DAPM_PGA("ROUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_ROUT_ENA_BIT, 0,
720 		NULL, 0),
721 
722 	/* LOPGA */
723 	SND_SOC_DAPM_PGA("LOPGA", WM8991_POWER_MANAGEMENT_3, WM8991_LOPGA_ENA_BIT, 0,
724 		NULL, 0),
725 
726 	/* ROPGA */
727 	SND_SOC_DAPM_PGA("ROPGA", WM8991_POWER_MANAGEMENT_3, WM8991_ROPGA_ENA_BIT, 0,
728 		NULL, 0),
729 
730 	/* MICBIAS */
731 	SND_SOC_DAPM_SUPPLY("MICBIAS", WM8991_POWER_MANAGEMENT_1,
732 			    WM8991_MICBIAS_ENA_BIT, 0, NULL, 0),
733 
734 	SND_SOC_DAPM_OUTPUT("LON"),
735 	SND_SOC_DAPM_OUTPUT("LOP"),
736 	SND_SOC_DAPM_OUTPUT("OUT3"),
737 	SND_SOC_DAPM_OUTPUT("LOUT"),
738 	SND_SOC_DAPM_OUTPUT("SPKN"),
739 	SND_SOC_DAPM_OUTPUT("SPKP"),
740 	SND_SOC_DAPM_OUTPUT("ROUT"),
741 	SND_SOC_DAPM_OUTPUT("OUT4"),
742 	SND_SOC_DAPM_OUTPUT("ROP"),
743 	SND_SOC_DAPM_OUTPUT("RON"),
744 	SND_SOC_DAPM_OUTPUT("OUT"),
745 
746 	SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
747 };
748 
749 static const struct snd_soc_dapm_route wm8991_dapm_routes[] = {
750 	/* Make DACs turn on when playing even if not mixed into any outputs */
751 	{"Internal DAC Sink", NULL, "Left DAC"},
752 	{"Internal DAC Sink", NULL, "Right DAC"},
753 
754 	/* Make ADCs turn on when recording even if not mixed from any inputs */
755 	{"Left ADC", NULL, "Internal ADC Source"},
756 	{"Right ADC", NULL, "Internal ADC Source"},
757 
758 	/* Input Side */
759 	{"INMIXL", NULL, "INL"},
760 	{"AINLMUX", NULL, "INL"},
761 	{"INMIXR", NULL, "INR"},
762 	{"AINRMUX", NULL, "INR"},
763 	/* LIN12 PGA */
764 	{"LIN12 PGA", "LIN1 Switch", "LIN1"},
765 	{"LIN12 PGA", "LIN2 Switch", "LIN2"},
766 	/* LIN34 PGA */
767 	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
768 	{"LIN34 PGA", "LIN4 Switch", "LIN4RXN"},
769 	/* INMIXL */
770 	{"INMIXL", "Record Left Volume", "LOMIX"},
771 	{"INMIXL", "LIN2 Volume", "LIN2"},
772 	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
773 	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
774 	/* AINLMUX */
775 	{"AINLMUX", "INMIXL Mix", "INMIXL"},
776 	{"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
777 	{"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
778 	{"AINLMUX", "RXVOICE Mix", "LIN4RXN"},
779 	{"AINLMUX", "RXVOICE Mix", "RIN4RXP"},
780 	/* ADC */
781 	{"Left ADC", NULL, "AINLMUX"},
782 
783 	/* RIN12 PGA */
784 	{"RIN12 PGA", "RIN1 Switch", "RIN1"},
785 	{"RIN12 PGA", "RIN2 Switch", "RIN2"},
786 	/* RIN34 PGA */
787 	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
788 	{"RIN34 PGA", "RIN4 Switch", "RIN4RXP"},
789 	/* INMIXL */
790 	{"INMIXR", "Record Right Volume", "ROMIX"},
791 	{"INMIXR", "RIN2 Volume", "RIN2"},
792 	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
793 	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
794 	/* AINRMUX */
795 	{"AINRMUX", "INMIXR Mix", "INMIXR"},
796 	{"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
797 	{"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
798 	{"AINRMUX", "RXVOICE Mix", "LIN4RXN"},
799 	{"AINRMUX", "RXVOICE Mix", "RIN4RXP"},
800 	/* ADC */
801 	{"Right ADC", NULL, "AINRMUX"},
802 
803 	/* LOMIX */
804 	{"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
805 	{"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
806 	{"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
807 	{"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
808 	{"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
809 	{"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
810 	{"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
811 
812 	/* ROMIX */
813 	{"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
814 	{"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
815 	{"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
816 	{"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
817 	{"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
818 	{"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
819 	{"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
820 
821 	/* SPKMIX */
822 	{"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
823 	{"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
824 	{"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
825 	{"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
826 	{"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
827 	{"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
828 	{"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
829 	{"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
830 
831 	/* LONMIX */
832 	{"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
833 	{"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
834 	{"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
835 
836 	/* LOPMIX */
837 	{"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
838 	{"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
839 	{"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
840 
841 	/* OUT3MIX */
842 	{"OUT3MIX", "OUT3MIX LIN4RXN Bypass Switch", "LIN4RXN"},
843 	{"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
844 
845 	/* OUT4MIX */
846 	{"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
847 	{"OUT4MIX", "OUT4MIX RIN4RXP Bypass Switch", "RIN4RXP"},
848 
849 	/* RONMIX */
850 	{"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
851 	{"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
852 	{"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
853 
854 	/* ROPMIX */
855 	{"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
856 	{"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
857 	{"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
858 
859 	/* Out Mixer PGAs */
860 	{"LOPGA", NULL, "LOMIX"},
861 	{"ROPGA", NULL, "ROMIX"},
862 
863 	{"LOUT PGA", NULL, "LOMIX"},
864 	{"ROUT PGA", NULL, "ROMIX"},
865 
866 	/* Output Pins */
867 	{"LON", NULL, "LONMIX"},
868 	{"LOP", NULL, "LOPMIX"},
869 	{"OUT", NULL, "OUT3MIX"},
870 	{"LOUT", NULL, "LOUT PGA"},
871 	{"SPKN", NULL, "SPKMIX"},
872 	{"ROUT", NULL, "ROUT PGA"},
873 	{"OUT4", NULL, "OUT4MIX"},
874 	{"ROP", NULL, "ROPMIX"},
875 	{"RON", NULL, "RONMIX"},
876 };
877 
878 /* PLL divisors */
879 struct _pll_div {
880 	u32 div2;
881 	u32 n;
882 	u32 k;
883 };
884 
885 /* The size in bits of the pll divide multiplied by 10
886  * to allow rounding later */
887 #define FIXED_PLL_SIZE ((1 << 16) * 10)
888 
889 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
890 			unsigned int source)
891 {
892 	u64 Kpart;
893 	unsigned int K, Ndiv, Nmod;
894 
895 
896 	Ndiv = target / source;
897 	if (Ndiv < 6) {
898 		source >>= 1;
899 		pll_div->div2 = 1;
900 		Ndiv = target / source;
901 	} else
902 		pll_div->div2 = 0;
903 
904 	if ((Ndiv < 6) || (Ndiv > 12))
905 		printk(KERN_WARNING
906 		       "WM8991 N value outwith recommended range! N = %d\n", Ndiv);
907 
908 	pll_div->n = Ndiv;
909 	Nmod = target % source;
910 	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
911 
912 	do_div(Kpart, source);
913 
914 	K = Kpart & 0xFFFFFFFF;
915 
916 	/* Check if we need to round */
917 	if ((K % 10) >= 5)
918 		K += 5;
919 
920 	/* Move down to proper range now rounding is done */
921 	K /= 10;
922 
923 	pll_div->k = K;
924 }
925 
926 static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
927 			      int pll_id, int src, unsigned int freq_in, unsigned int freq_out)
928 {
929 	u16 reg;
930 	struct snd_soc_component *component = codec_dai->component;
931 	struct _pll_div pll_div;
932 
933 	if (freq_in && freq_out) {
934 		pll_factors(&pll_div, freq_out * 4, freq_in);
935 
936 		/* Turn on PLL */
937 		reg = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_2);
938 		reg |= WM8991_PLL_ENA;
939 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
940 
941 		/* sysclk comes from PLL */
942 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2);
943 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
944 
945 		/* set up N , fractional mode and pre-divisor if necessary */
946 		snd_soc_component_write(component, WM8991_PLL1, pll_div.n | WM8991_SDM |
947 			      (pll_div.div2 ? WM8991_PRESCALE : 0));
948 		snd_soc_component_write(component, WM8991_PLL2, (u8)(pll_div.k>>8));
949 		snd_soc_component_write(component, WM8991_PLL3, (u8)(pll_div.k & 0xFF));
950 	} else {
951 		/* Turn on PLL */
952 		reg = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_2);
953 		reg &= ~WM8991_PLL_ENA;
954 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
955 	}
956 	return 0;
957 }
958 
959 /*
960  * Set's ADC and Voice DAC format.
961  */
962 static int wm8991_set_dai_fmt(struct snd_soc_dai *codec_dai,
963 			      unsigned int fmt)
964 {
965 	struct snd_soc_component *component = codec_dai->component;
966 	u16 audio1, audio3;
967 
968 	audio1 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_1);
969 	audio3 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_3);
970 
971 	/* set master/slave audio interface */
972 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
973 	case SND_SOC_DAIFMT_CBS_CFS:
974 		audio3 &= ~WM8991_AIF_MSTR1;
975 		break;
976 	case SND_SOC_DAIFMT_CBM_CFM:
977 		audio3 |= WM8991_AIF_MSTR1;
978 		break;
979 	default:
980 		return -EINVAL;
981 	}
982 
983 	audio1 &= ~WM8991_AIF_FMT_MASK;
984 
985 	/* interface format */
986 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
987 	case SND_SOC_DAIFMT_I2S:
988 		audio1 |= WM8991_AIF_TMF_I2S;
989 		audio1 &= ~WM8991_AIF_LRCLK_INV;
990 		break;
991 	case SND_SOC_DAIFMT_RIGHT_J:
992 		audio1 |= WM8991_AIF_TMF_RIGHTJ;
993 		audio1 &= ~WM8991_AIF_LRCLK_INV;
994 		break;
995 	case SND_SOC_DAIFMT_LEFT_J:
996 		audio1 |= WM8991_AIF_TMF_LEFTJ;
997 		audio1 &= ~WM8991_AIF_LRCLK_INV;
998 		break;
999 	case SND_SOC_DAIFMT_DSP_A:
1000 		audio1 |= WM8991_AIF_TMF_DSP;
1001 		audio1 &= ~WM8991_AIF_LRCLK_INV;
1002 		break;
1003 	case SND_SOC_DAIFMT_DSP_B:
1004 		audio1 |= WM8991_AIF_TMF_DSP | WM8991_AIF_LRCLK_INV;
1005 		break;
1006 	default:
1007 		return -EINVAL;
1008 	}
1009 
1010 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
1011 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_3, audio3);
1012 	return 0;
1013 }
1014 
1015 static int wm8991_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1016 				 int div_id, int div)
1017 {
1018 	struct snd_soc_component *component = codec_dai->component;
1019 	u16 reg;
1020 
1021 	switch (div_id) {
1022 	case WM8991_MCLK_DIV:
1023 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1024 		      ~WM8991_MCLK_DIV_MASK;
1025 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1026 		break;
1027 	case WM8991_DACCLK_DIV:
1028 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1029 		      ~WM8991_DAC_CLKDIV_MASK;
1030 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1031 		break;
1032 	case WM8991_ADCCLK_DIV:
1033 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1034 		      ~WM8991_ADC_CLKDIV_MASK;
1035 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1036 		break;
1037 	case WM8991_BCLK_DIV:
1038 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_1) &
1039 		      ~WM8991_BCLK_DIV_MASK;
1040 		snd_soc_component_write(component, WM8991_CLOCKING_1, reg | div);
1041 		break;
1042 	default:
1043 		return -EINVAL;
1044 	}
1045 
1046 	return 0;
1047 }
1048 
1049 /*
1050  * Set PCM DAI bit size and sample rate.
1051  */
1052 static int wm8991_hw_params(struct snd_pcm_substream *substream,
1053 			    struct snd_pcm_hw_params *params,
1054 			    struct snd_soc_dai *dai)
1055 {
1056 	struct snd_soc_component *component = dai->component;
1057 	u16 audio1 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_1);
1058 
1059 	audio1 &= ~WM8991_AIF_WL_MASK;
1060 	/* bit size */
1061 	switch (params_width(params)) {
1062 	case 16:
1063 		break;
1064 	case 20:
1065 		audio1 |= WM8991_AIF_WL_20BITS;
1066 		break;
1067 	case 24:
1068 		audio1 |= WM8991_AIF_WL_24BITS;
1069 		break;
1070 	case 32:
1071 		audio1 |= WM8991_AIF_WL_32BITS;
1072 		break;
1073 	}
1074 
1075 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
1076 	return 0;
1077 }
1078 
1079 static int wm8991_mute(struct snd_soc_dai *dai, int mute)
1080 {
1081 	struct snd_soc_component *component = dai->component;
1082 	u16 val;
1083 
1084 	val  = snd_soc_component_read32(component, WM8991_DAC_CTRL) & ~WM8991_DAC_MUTE;
1085 	if (mute)
1086 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1087 	else
1088 		snd_soc_component_write(component, WM8991_DAC_CTRL, val);
1089 	return 0;
1090 }
1091 
1092 static int wm8991_set_bias_level(struct snd_soc_component *component,
1093 				 enum snd_soc_bias_level level)
1094 {
1095 	struct wm8991_priv *wm8991 = snd_soc_component_get_drvdata(component);
1096 	u16 val;
1097 
1098 	switch (level) {
1099 	case SND_SOC_BIAS_ON:
1100 		break;
1101 
1102 	case SND_SOC_BIAS_PREPARE:
1103 		/* VMID=2*50k */
1104 		val = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_1) &
1105 		      ~WM8991_VMID_MODE_MASK;
1106 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x2);
1107 		break;
1108 
1109 	case SND_SOC_BIAS_STANDBY:
1110 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1111 			regcache_sync(wm8991->regmap);
1112 			/* Enable all output discharge bits */
1113 			snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1114 				      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1115 				      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1116 				      WM8991_DIS_ROUT);
1117 
1118 			/* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
1119 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1120 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1121 				      WM8991_VMIDTOG);
1122 
1123 			/* Delay to allow output caps to discharge */
1124 			msleep(300);
1125 
1126 			/* Disable VMIDTOG */
1127 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1128 				      WM8991_BUFDCOPEN | WM8991_POBCTRL);
1129 
1130 			/* disable all output discharge bits */
1131 			snd_soc_component_write(component, WM8991_ANTIPOP1, 0);
1132 
1133 			/* Enable outputs */
1134 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1b00);
1135 
1136 			msleep(50);
1137 
1138 			/* Enable VMID at 2x50k */
1139 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f02);
1140 
1141 			msleep(100);
1142 
1143 			/* Enable VREF */
1144 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1145 
1146 			msleep(600);
1147 
1148 			/* Enable BUFIOEN */
1149 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1150 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1151 				      WM8991_BUFIOEN);
1152 
1153 			/* Disable outputs */
1154 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x3);
1155 
1156 			/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1157 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_BUFIOEN);
1158 		}
1159 
1160 		/* VMID=2*250k */
1161 		val = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_1) &
1162 		      ~WM8991_VMID_MODE_MASK;
1163 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x4);
1164 		break;
1165 
1166 	case SND_SOC_BIAS_OFF:
1167 		/* Enable POBCTRL and SOFT_ST */
1168 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1169 			      WM8991_POBCTRL | WM8991_BUFIOEN);
1170 
1171 		/* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
1172 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1173 			      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1174 			      WM8991_BUFIOEN);
1175 
1176 		/* mute DAC */
1177 		val = snd_soc_component_read32(component, WM8991_DAC_CTRL);
1178 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1179 
1180 		/* Enable any disabled outputs */
1181 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1182 
1183 		/* Disable VMID */
1184 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f01);
1185 
1186 		msleep(300);
1187 
1188 		/* Enable all output discharge bits */
1189 		snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1190 			      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1191 			      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1192 			      WM8991_DIS_ROUT);
1193 
1194 		/* Disable VREF */
1195 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x0);
1196 
1197 		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1198 		snd_soc_component_write(component, WM8991_ANTIPOP2, 0x0);
1199 		regcache_mark_dirty(wm8991->regmap);
1200 		break;
1201 	}
1202 
1203 	return 0;
1204 }
1205 
1206 #define WM8991_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1207 			SNDRV_PCM_FMTBIT_S24_LE)
1208 
1209 static const struct snd_soc_dai_ops wm8991_ops = {
1210 	.hw_params = wm8991_hw_params,
1211 	.digital_mute = wm8991_mute,
1212 	.set_fmt = wm8991_set_dai_fmt,
1213 	.set_clkdiv = wm8991_set_dai_clkdiv,
1214 	.set_pll = wm8991_set_dai_pll
1215 };
1216 
1217 /*
1218  * The WM8991 supports 2 different and mutually exclusive DAI
1219  * configurations.
1220  *
1221  * 1. ADC/DAC on Primary Interface
1222  * 2. ADC on Primary Interface/DAC on secondary
1223  */
1224 static struct snd_soc_dai_driver wm8991_dai = {
1225 	/* ADC/DAC on primary */
1226 	.name = "wm8991",
1227 	.id = 1,
1228 	.playback = {
1229 		.stream_name = "Playback",
1230 		.channels_min = 1,
1231 		.channels_max = 2,
1232 		.rates = SNDRV_PCM_RATE_8000_96000,
1233 		.formats = WM8991_FORMATS
1234 	},
1235 	.capture = {
1236 		.stream_name = "Capture",
1237 		.channels_min = 1,
1238 		.channels_max = 2,
1239 		.rates = SNDRV_PCM_RATE_8000_96000,
1240 		.formats = WM8991_FORMATS
1241 	},
1242 	.ops = &wm8991_ops
1243 };
1244 
1245 static const struct snd_soc_component_driver soc_component_dev_wm8991 = {
1246 	.set_bias_level		= wm8991_set_bias_level,
1247 	.controls		= wm8991_snd_controls,
1248 	.num_controls		= ARRAY_SIZE(wm8991_snd_controls),
1249 	.dapm_widgets		= wm8991_dapm_widgets,
1250 	.num_dapm_widgets	= ARRAY_SIZE(wm8991_dapm_widgets),
1251 	.dapm_routes		= wm8991_dapm_routes,
1252 	.num_dapm_routes	= ARRAY_SIZE(wm8991_dapm_routes),
1253 	.suspend_bias_off	= 1,
1254 	.idle_bias_on		= 1,
1255 	.use_pmdown_time	= 1,
1256 	.endianness		= 1,
1257 	.non_legacy_dai_naming	= 1,
1258 };
1259 
1260 static const struct regmap_config wm8991_regmap = {
1261 	.reg_bits = 8,
1262 	.val_bits = 16,
1263 
1264 	.max_register = WM8991_PLL3,
1265 	.volatile_reg = wm8991_volatile,
1266 	.reg_defaults = wm8991_reg_defaults,
1267 	.num_reg_defaults = ARRAY_SIZE(wm8991_reg_defaults),
1268 	.cache_type = REGCACHE_RBTREE,
1269 };
1270 
1271 static int wm8991_i2c_probe(struct i2c_client *i2c,
1272 			    const struct i2c_device_id *id)
1273 {
1274 	struct wm8991_priv *wm8991;
1275 	unsigned int val;
1276 	int ret;
1277 
1278 	wm8991 = devm_kzalloc(&i2c->dev, sizeof(*wm8991), GFP_KERNEL);
1279 	if (!wm8991)
1280 		return -ENOMEM;
1281 
1282 	wm8991->regmap = devm_regmap_init_i2c(i2c, &wm8991_regmap);
1283 	if (IS_ERR(wm8991->regmap))
1284 		return PTR_ERR(wm8991->regmap);
1285 
1286 	i2c_set_clientdata(i2c, wm8991);
1287 
1288 	ret = regmap_read(wm8991->regmap, WM8991_RESET, &val);
1289 	if (ret != 0) {
1290 		dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);
1291 		return ret;
1292 	}
1293 	if (val != 0x8991) {
1294 		dev_err(&i2c->dev, "Device with ID %x is not a WM8991\n", val);
1295 		return -EINVAL;
1296 	}
1297 
1298 	ret = regmap_write(wm8991->regmap, WM8991_RESET, 0);
1299 	if (ret < 0) {
1300 		dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1301 		return ret;
1302 	}
1303 
1304 	regmap_update_bits(wm8991->regmap, WM8991_AUDIO_INTERFACE_4,
1305 			   WM8991_ALRCGPIO1, WM8991_ALRCGPIO1);
1306 
1307 	regmap_update_bits(wm8991->regmap, WM8991_GPIO1_GPIO2,
1308 			   WM8991_GPIO1_SEL_MASK, 1);
1309 
1310 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_1,
1311 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK,
1312 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK);
1313 
1314 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_2,
1315 			   WM8991_OPCLK_ENA, WM8991_OPCLK_ENA);
1316 
1317 	regmap_write(wm8991->regmap, WM8991_DAC_CTRL, 0);
1318 	regmap_write(wm8991->regmap, WM8991_LEFT_OUTPUT_VOLUME,
1319 		     0x50 | (1<<8));
1320 	regmap_write(wm8991->regmap, WM8991_RIGHT_OUTPUT_VOLUME,
1321 		     0x50 | (1<<8));
1322 
1323 	ret = devm_snd_soc_register_component(&i2c->dev,
1324 				     &soc_component_dev_wm8991, &wm8991_dai, 1);
1325 
1326 	return ret;
1327 }
1328 
1329 static const struct i2c_device_id wm8991_i2c_id[] = {
1330 	{ "wm8991", 0 },
1331 	{ }
1332 };
1333 MODULE_DEVICE_TABLE(i2c, wm8991_i2c_id);
1334 
1335 static struct i2c_driver wm8991_i2c_driver = {
1336 	.driver = {
1337 		.name = "wm8991",
1338 	},
1339 	.probe = wm8991_i2c_probe,
1340 	.id_table = wm8991_i2c_id,
1341 };
1342 
1343 module_i2c_driver(wm8991_i2c_driver);
1344 
1345 MODULE_DESCRIPTION("ASoC WM8991 driver");
1346 MODULE_AUTHOR("Graeme Gregory");
1347 MODULE_LICENSE("GPL");
1348