xref: /openbmc/linux/sound/soc/codecs/wm8991.c (revision 48ca54e3)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * wm8991.c  --  WM8991 ALSA Soc Audio driver
4  *
5  * Copyright 2007-2010 Wolfson Microelectronics PLC.
6  * Author: Graeme Gregory
7  *         Graeme.Gregory@wolfsonmicro.com
8  */
9 
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/pm.h>
16 #include <linux/i2c.h>
17 #include <linux/regmap.h>
18 #include <linux/slab.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc.h>
23 #include <sound/soc-dapm.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 #include <asm/div64.h>
27 
28 #include "wm8991.h"
29 
30 struct wm8991_priv {
31 	struct regmap *regmap;
32 	unsigned int pcmclk;
33 };
34 
35 static const struct reg_default wm8991_reg_defaults[] = {
36 	{  1, 0x0000 },     /* R1  - Power Management (1) */
37 	{  2, 0x6000 },     /* R2  - Power Management (2) */
38 	{  3, 0x0000 },     /* R3  - Power Management (3) */
39 	{  4, 0x4050 },     /* R4  - Audio Interface (1) */
40 	{  5, 0x4000 },     /* R5  - Audio Interface (2) */
41 	{  6, 0x01C8 },     /* R6  - Clocking (1) */
42 	{  7, 0x0000 },     /* R7  - Clocking (2) */
43 	{  8, 0x0040 },     /* R8  - Audio Interface (3) */
44 	{  9, 0x0040 },     /* R9  - Audio Interface (4) */
45 	{ 10, 0x0004 },     /* R10 - DAC CTRL */
46 	{ 11, 0x00C0 },     /* R11 - Left DAC Digital Volume */
47 	{ 12, 0x00C0 },     /* R12 - Right DAC Digital Volume */
48 	{ 13, 0x0000 },     /* R13 - Digital Side Tone */
49 	{ 14, 0x0100 },     /* R14 - ADC CTRL */
50 	{ 15, 0x00C0 },     /* R15 - Left ADC Digital Volume */
51 	{ 16, 0x00C0 },     /* R16 - Right ADC Digital Volume */
52 
53 	{ 18, 0x0000 },     /* R18 - GPIO CTRL 1 */
54 	{ 19, 0x1000 },     /* R19 - GPIO1 & GPIO2 */
55 	{ 20, 0x1010 },     /* R20 - GPIO3 & GPIO4 */
56 	{ 21, 0x1010 },     /* R21 - GPIO5 & GPIO6 */
57 	{ 22, 0x8000 },     /* R22 - GPIOCTRL 2 */
58 	{ 23, 0x0800 },     /* R23 - GPIO_POL */
59 	{ 24, 0x008B },     /* R24 - Left Line Input 1&2 Volume */
60 	{ 25, 0x008B },     /* R25 - Left Line Input 3&4 Volume */
61 	{ 26, 0x008B },     /* R26 - Right Line Input 1&2 Volume */
62 	{ 27, 0x008B },     /* R27 - Right Line Input 3&4 Volume */
63 	{ 28, 0x0000 },     /* R28 - Left Output Volume */
64 	{ 29, 0x0000 },     /* R29 - Right Output Volume */
65 	{ 30, 0x0066 },     /* R30 - Line Outputs Volume */
66 	{ 31, 0x0022 },     /* R31 - Out3/4 Volume */
67 	{ 32, 0x0079 },     /* R32 - Left OPGA Volume */
68 	{ 33, 0x0079 },     /* R33 - Right OPGA Volume */
69 	{ 34, 0x0003 },     /* R34 - Speaker Volume */
70 	{ 35, 0x0003 },     /* R35 - ClassD1 */
71 
72 	{ 37, 0x0100 },     /* R37 - ClassD3 */
73 
74 	{ 39, 0x0000 },     /* R39 - Input Mixer1 */
75 	{ 40, 0x0000 },     /* R40 - Input Mixer2 */
76 	{ 41, 0x0000 },     /* R41 - Input Mixer3 */
77 	{ 42, 0x0000 },     /* R42 - Input Mixer4 */
78 	{ 43, 0x0000 },     /* R43 - Input Mixer5 */
79 	{ 44, 0x0000 },     /* R44 - Input Mixer6 */
80 	{ 45, 0x0000 },     /* R45 - Output Mixer1 */
81 	{ 46, 0x0000 },     /* R46 - Output Mixer2 */
82 	{ 47, 0x0000 },     /* R47 - Output Mixer3 */
83 	{ 48, 0x0000 },     /* R48 - Output Mixer4 */
84 	{ 49, 0x0000 },     /* R49 - Output Mixer5 */
85 	{ 50, 0x0000 },     /* R50 - Output Mixer6 */
86 	{ 51, 0x0180 },     /* R51 - Out3/4 Mixer */
87 	{ 52, 0x0000 },     /* R52 - Line Mixer1 */
88 	{ 53, 0x0000 },     /* R53 - Line Mixer2 */
89 	{ 54, 0x0000 },     /* R54 - Speaker Mixer */
90 	{ 55, 0x0000 },     /* R55 - Additional Control */
91 	{ 56, 0x0000 },     /* R56 - AntiPOP1 */
92 	{ 57, 0x0000 },     /* R57 - AntiPOP2 */
93 	{ 58, 0x0000 },     /* R58 - MICBIAS */
94 
95 	{ 60, 0x0008 },     /* R60 - PLL1 */
96 	{ 61, 0x0031 },     /* R61 - PLL2 */
97 	{ 62, 0x0026 },     /* R62 - PLL3 */
98 };
99 
100 static bool wm8991_volatile(struct device *dev, unsigned int reg)
101 {
102 	switch (reg) {
103 	case WM8991_RESET:
104 		return true;
105 	default:
106 		return false;
107 	}
108 }
109 
110 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_pga_tlv, -1650, 150, 0);
111 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(out_mix_tlv, -2100, 300, 0);
112 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_pga_tlv,
113 	0x00, 0x2f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(SNDRV_CTL_TLVD_DB_GAIN_MUTE, 0, 1),
114 	0x30, 0x7f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-7300, 100, 0),
115 );
116 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_dac_tlv,
117 	0x00, 0xbf, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
118 	0xc0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
119 );
120 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(in_adc_tlv,
121 	0x00, 0xef, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-71625, 375, 1),
122 	0xf0, 0xff, SNDRV_CTL_TLVD_DB_SCALE_ITEM(17625, 0, 0),
123 );
124 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(out_sidetone_tlv,
125 	0x00, 0x0c, SNDRV_CTL_TLVD_DB_SCALE_ITEM(-3600, 300, 0),
126 	0x0d, 0x0f, SNDRV_CTL_TLVD_DB_SCALE_ITEM(0, 0, 0),
127 );
128 
129 static int wm899x_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
130 				      struct snd_ctl_elem_value *ucontrol)
131 {
132 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
133 	int reg = kcontrol->private_value & 0xff;
134 	int ret;
135 	u16 val;
136 
137 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
138 	if (ret < 0)
139 		return ret;
140 
141 	/* now hit the volume update bits (always bit 8) */
142 	val = snd_soc_component_read(component, reg);
143 	return snd_soc_component_write(component, reg, val | 0x0100);
144 }
145 
146 static const char *wm8991_digital_sidetone[] =
147 {"None", "Left ADC", "Right ADC", "Reserved"};
148 
149 static SOC_ENUM_SINGLE_DECL(wm8991_left_digital_sidetone_enum,
150 			    WM8991_DIGITAL_SIDE_TONE,
151 			    WM8991_ADC_TO_DACL_SHIFT,
152 			    wm8991_digital_sidetone);
153 
154 static SOC_ENUM_SINGLE_DECL(wm8991_right_digital_sidetone_enum,
155 			    WM8991_DIGITAL_SIDE_TONE,
156 			    WM8991_ADC_TO_DACR_SHIFT,
157 			    wm8991_digital_sidetone);
158 
159 static const char *wm8991_adcmode[] =
160 {"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
161 
162 static SOC_ENUM_SINGLE_DECL(wm8991_right_adcmode_enum,
163 			    WM8991_ADC_CTRL,
164 			    WM8991_ADC_HPF_CUT_SHIFT,
165 			    wm8991_adcmode);
166 
167 static const struct snd_kcontrol_new wm8991_snd_controls[] = {
168 	/* INMIXL */
169 	SOC_SINGLE("LIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L12MNBST_BIT, 1, 0),
170 	SOC_SINGLE("LIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L34MNBST_BIT, 1, 0),
171 	/* INMIXR */
172 	SOC_SINGLE("RIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R12MNBST_BIT, 1, 0),
173 	SOC_SINGLE("RIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R34MNBST_BIT, 1, 0),
174 
175 	/* LOMIX */
176 	SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER3,
177 		WM8991_LLI3LOVOL_SHIFT, WM8991_LLI3LOVOL_MASK, 1, out_mix_tlv),
178 	SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
179 		WM8991_LR12LOVOL_SHIFT, WM8991_LR12LOVOL_MASK, 1, out_mix_tlv),
180 	SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
181 		WM8991_LL12LOVOL_SHIFT, WM8991_LL12LOVOL_MASK, 1, out_mix_tlv),
182 	SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER5,
183 		WM8991_LRI3LOVOL_SHIFT, WM8991_LRI3LOVOL_MASK, 1, out_mix_tlv),
184 	SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
185 		WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
186 	SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
187 		WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
188 
189 	/* ROMIX */
190 	SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER4,
191 		WM8991_RRI3ROVOL_SHIFT, WM8991_RRI3ROVOL_MASK, 1, out_mix_tlv),
192 	SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
193 		WM8991_RL12ROVOL_SHIFT, WM8991_RL12ROVOL_MASK, 1, out_mix_tlv),
194 	SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
195 		WM8991_RR12ROVOL_SHIFT, WM8991_RR12ROVOL_MASK, 1, out_mix_tlv),
196 	SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER6,
197 		WM8991_RLI3ROVOL_SHIFT, WM8991_RLI3ROVOL_MASK, 1, out_mix_tlv),
198 	SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
199 		WM8991_RLBROVOL_SHIFT, WM8991_RLBROVOL_MASK, 1, out_mix_tlv),
200 	SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
201 		WM8991_RRBROVOL_SHIFT, WM8991_RRBROVOL_MASK, 1, out_mix_tlv),
202 
203 	/* LOUT */
204 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8991_LEFT_OUTPUT_VOLUME,
205 		WM8991_LOUTVOL_SHIFT, WM8991_LOUTVOL_MASK, 0, out_pga_tlv),
206 	SOC_SINGLE("LOUT ZC", WM8991_LEFT_OUTPUT_VOLUME, WM8991_LOZC_BIT, 1, 0),
207 
208 	/* ROUT */
209 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8991_RIGHT_OUTPUT_VOLUME,
210 		WM8991_ROUTVOL_SHIFT, WM8991_ROUTVOL_MASK, 0, out_pga_tlv),
211 	SOC_SINGLE("ROUT ZC", WM8991_RIGHT_OUTPUT_VOLUME, WM8991_ROZC_BIT, 1, 0),
212 
213 	/* LOPGA */
214 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8991_LEFT_OPGA_VOLUME,
215 		WM8991_LOPGAVOL_SHIFT, WM8991_LOPGAVOL_MASK, 0, out_pga_tlv),
216 	SOC_SINGLE("LOPGA ZC Switch", WM8991_LEFT_OPGA_VOLUME,
217 		WM8991_LOPGAZC_BIT, 1, 0),
218 
219 	/* ROPGA */
220 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8991_RIGHT_OPGA_VOLUME,
221 		WM8991_ROPGAVOL_SHIFT, WM8991_ROPGAVOL_MASK, 0, out_pga_tlv),
222 	SOC_SINGLE("ROPGA ZC Switch", WM8991_RIGHT_OPGA_VOLUME,
223 		WM8991_ROPGAZC_BIT, 1, 0),
224 
225 	SOC_SINGLE("LON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
226 		WM8991_LONMUTE_BIT, 1, 0),
227 	SOC_SINGLE("LOP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
228 		WM8991_LOPMUTE_BIT, 1, 0),
229 	SOC_SINGLE("LOP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
230 		WM8991_LOATTN_BIT, 1, 0),
231 	SOC_SINGLE("RON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
232 		WM8991_RONMUTE_BIT, 1, 0),
233 	SOC_SINGLE("ROP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
234 		WM8991_ROPMUTE_BIT, 1, 0),
235 	SOC_SINGLE("ROP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
236 		WM8991_ROATTN_BIT, 1, 0),
237 
238 	SOC_SINGLE("OUT3 Mute Switch", WM8991_OUT3_4_VOLUME,
239 		WM8991_OUT3MUTE_BIT, 1, 0),
240 	SOC_SINGLE("OUT3 Attenuation Switch", WM8991_OUT3_4_VOLUME,
241 		WM8991_OUT3ATTN_BIT, 1, 0),
242 
243 	SOC_SINGLE("OUT4 Mute Switch", WM8991_OUT3_4_VOLUME,
244 		WM8991_OUT4MUTE_BIT, 1, 0),
245 	SOC_SINGLE("OUT4 Attenuation Switch", WM8991_OUT3_4_VOLUME,
246 		WM8991_OUT4ATTN_BIT, 1, 0),
247 
248 	SOC_SINGLE("Speaker Mode Switch", WM8991_CLASSD1,
249 		WM8991_CDMODE_BIT, 1, 0),
250 
251 	SOC_SINGLE("Speaker Output Attenuation Volume", WM8991_SPEAKER_VOLUME,
252 		WM8991_SPKVOL_SHIFT, WM8991_SPKVOL_MASK, 0),
253 	SOC_SINGLE("Speaker DC Boost Volume", WM8991_CLASSD3,
254 		WM8991_DCGAIN_SHIFT, WM8991_DCGAIN_MASK, 0),
255 	SOC_SINGLE("Speaker AC Boost Volume", WM8991_CLASSD3,
256 		WM8991_ACGAIN_SHIFT, WM8991_ACGAIN_MASK, 0),
257 
258 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
259 		WM8991_LEFT_DAC_DIGITAL_VOLUME,
260 		WM8991_DACL_VOL_SHIFT,
261 		WM8991_DACL_VOL_MASK,
262 		0,
263 		out_dac_tlv),
264 
265 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
266 		WM8991_RIGHT_DAC_DIGITAL_VOLUME,
267 		WM8991_DACR_VOL_SHIFT,
268 		WM8991_DACR_VOL_MASK,
269 		0,
270 		out_dac_tlv),
271 
272 	SOC_ENUM("Left Digital Sidetone", wm8991_left_digital_sidetone_enum),
273 	SOC_ENUM("Right Digital Sidetone", wm8991_right_digital_sidetone_enum),
274 
275 	SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
276 		WM8991_ADCL_DAC_SVOL_SHIFT, WM8991_ADCL_DAC_SVOL_MASK, 0,
277 		out_sidetone_tlv),
278 	SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
279 		WM8991_ADCR_DAC_SVOL_SHIFT, WM8991_ADCR_DAC_SVOL_MASK, 0,
280 		out_sidetone_tlv),
281 
282 	SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8991_ADC_CTRL,
283 		WM8991_ADC_HPF_ENA_BIT, 1, 0),
284 
285 	SOC_ENUM("ADC HPF Mode", wm8991_right_adcmode_enum),
286 
287 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
288 		WM8991_LEFT_ADC_DIGITAL_VOLUME,
289 		WM8991_ADCL_VOL_SHIFT,
290 		WM8991_ADCL_VOL_MASK,
291 		0,
292 		in_adc_tlv),
293 
294 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
295 		WM8991_RIGHT_ADC_DIGITAL_VOLUME,
296 		WM8991_ADCR_VOL_SHIFT,
297 		WM8991_ADCR_VOL_MASK,
298 		0,
299 		in_adc_tlv),
300 
301 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
302 		WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
303 		WM8991_LIN12VOL_SHIFT,
304 		WM8991_LIN12VOL_MASK,
305 		0,
306 		in_pga_tlv),
307 
308 	SOC_SINGLE("LIN12 ZC Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
309 		WM8991_LI12ZC_BIT, 1, 0),
310 
311 	SOC_SINGLE("LIN12 Mute Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
312 		WM8991_LI12MUTE_BIT, 1, 0),
313 
314 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
315 		WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
316 		WM8991_LIN34VOL_SHIFT,
317 		WM8991_LIN34VOL_MASK,
318 		0,
319 		in_pga_tlv),
320 
321 	SOC_SINGLE("LIN34 ZC Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
322 		WM8991_LI34ZC_BIT, 1, 0),
323 
324 	SOC_SINGLE("LIN34 Mute Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
325 		WM8991_LI34MUTE_BIT, 1, 0),
326 
327 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
328 		WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
329 		WM8991_RIN12VOL_SHIFT,
330 		WM8991_RIN12VOL_MASK,
331 		0,
332 		in_pga_tlv),
333 
334 	SOC_SINGLE("RIN12 ZC Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
335 		WM8991_RI12ZC_BIT, 1, 0),
336 
337 	SOC_SINGLE("RIN12 Mute Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
338 		WM8991_RI12MUTE_BIT, 1, 0),
339 
340 	SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
341 		WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
342 		WM8991_RIN34VOL_SHIFT,
343 		WM8991_RIN34VOL_MASK,
344 		0,
345 		in_pga_tlv),
346 
347 	SOC_SINGLE("RIN34 ZC Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
348 		WM8991_RI34ZC_BIT, 1, 0),
349 
350 	SOC_SINGLE("RIN34 Mute Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
351 		WM8991_RI34MUTE_BIT, 1, 0),
352 };
353 
354 /*
355  * _DAPM_ Controls
356  */
357 static int outmixer_event(struct snd_soc_dapm_widget *w,
358 			  struct snd_kcontrol *kcontrol, int event)
359 {
360 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
361 	u32 reg_shift = kcontrol->private_value & 0xfff;
362 	int ret = 0;
363 	u16 reg;
364 
365 	switch (reg_shift) {
366 	case WM8991_SPEAKER_MIXER | (WM8991_LDSPK_BIT << 8):
367 		reg = snd_soc_component_read(component, WM8991_OUTPUT_MIXER1);
368 		if (reg & WM8991_LDLO) {
369 			printk(KERN_WARNING
370 			       "Cannot set as Output Mixer 1 LDLO Set\n");
371 			ret = -1;
372 		}
373 		break;
374 
375 	case WM8991_SPEAKER_MIXER | (WM8991_RDSPK_BIT << 8):
376 		reg = snd_soc_component_read(component, WM8991_OUTPUT_MIXER2);
377 		if (reg & WM8991_RDRO) {
378 			printk(KERN_WARNING
379 			       "Cannot set as Output Mixer 2 RDRO Set\n");
380 			ret = -1;
381 		}
382 		break;
383 
384 	case WM8991_OUTPUT_MIXER1 | (WM8991_LDLO_BIT << 8):
385 		reg = snd_soc_component_read(component, WM8991_SPEAKER_MIXER);
386 		if (reg & WM8991_LDSPK) {
387 			printk(KERN_WARNING
388 			       "Cannot set as Speaker Mixer LDSPK Set\n");
389 			ret = -1;
390 		}
391 		break;
392 
393 	case WM8991_OUTPUT_MIXER2 | (WM8991_RDRO_BIT << 8):
394 		reg = snd_soc_component_read(component, WM8991_SPEAKER_MIXER);
395 		if (reg & WM8991_RDSPK) {
396 			printk(KERN_WARNING
397 			       "Cannot set as Speaker Mixer RDSPK Set\n");
398 			ret = -1;
399 		}
400 		break;
401 	}
402 
403 	return ret;
404 }
405 
406 /* INMIX dB values */
407 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(in_mix_tlv, -1200, 300, 1);
408 
409 /* Left In PGA Connections */
410 static const struct snd_kcontrol_new wm8991_dapm_lin12_pga_controls[] = {
411 	SOC_DAPM_SINGLE("LIN1 Switch", WM8991_INPUT_MIXER2, WM8991_LMN1_BIT, 1, 0),
412 	SOC_DAPM_SINGLE("LIN2 Switch", WM8991_INPUT_MIXER2, WM8991_LMP2_BIT, 1, 0),
413 };
414 
415 static const struct snd_kcontrol_new wm8991_dapm_lin34_pga_controls[] = {
416 	SOC_DAPM_SINGLE("LIN3 Switch", WM8991_INPUT_MIXER2, WM8991_LMN3_BIT, 1, 0),
417 	SOC_DAPM_SINGLE("LIN4 Switch", WM8991_INPUT_MIXER2, WM8991_LMP4_BIT, 1, 0),
418 };
419 
420 /* Right In PGA Connections */
421 static const struct snd_kcontrol_new wm8991_dapm_rin12_pga_controls[] = {
422 	SOC_DAPM_SINGLE("RIN1 Switch", WM8991_INPUT_MIXER2, WM8991_RMN1_BIT, 1, 0),
423 	SOC_DAPM_SINGLE("RIN2 Switch", WM8991_INPUT_MIXER2, WM8991_RMP2_BIT, 1, 0),
424 };
425 
426 static const struct snd_kcontrol_new wm8991_dapm_rin34_pga_controls[] = {
427 	SOC_DAPM_SINGLE("RIN3 Switch", WM8991_INPUT_MIXER2, WM8991_RMN3_BIT, 1, 0),
428 	SOC_DAPM_SINGLE("RIN4 Switch", WM8991_INPUT_MIXER2, WM8991_RMP4_BIT, 1, 0),
429 };
430 
431 /* INMIXL */
432 static const struct snd_kcontrol_new wm8991_dapm_inmixl_controls[] = {
433 	SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8991_INPUT_MIXER3,
434 		WM8991_LDBVOL_SHIFT, WM8991_LDBVOL_MASK, 0, in_mix_tlv),
435 	SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8991_INPUT_MIXER5, WM8991_LI2BVOL_SHIFT,
436 		7, 0, in_mix_tlv),
437 	SOC_DAPM_SINGLE("LINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
438 		1, 0),
439 	SOC_DAPM_SINGLE("LINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
440 		1, 0),
441 };
442 
443 /* INMIXR */
444 static const struct snd_kcontrol_new wm8991_dapm_inmixr_controls[] = {
445 	SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8991_INPUT_MIXER4,
446 		WM8991_RDBVOL_SHIFT, WM8991_RDBVOL_MASK, 0, in_mix_tlv),
447 	SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8991_INPUT_MIXER6, WM8991_RI2BVOL_SHIFT,
448 		7, 0, in_mix_tlv),
449 	SOC_DAPM_SINGLE("RINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
450 		1, 0),
451 	SOC_DAPM_SINGLE("RINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
452 		1, 0),
453 };
454 
455 /* AINLMUX */
456 static const char *wm8991_ainlmux[] =
457 {"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
458 
459 static SOC_ENUM_SINGLE_DECL(wm8991_ainlmux_enum,
460 			    WM8991_INPUT_MIXER1, WM8991_AINLMODE_SHIFT,
461 			    wm8991_ainlmux);
462 
463 static const struct snd_kcontrol_new wm8991_dapm_ainlmux_controls =
464 	SOC_DAPM_ENUM("Route", wm8991_ainlmux_enum);
465 
466 /* DIFFINL */
467 
468 /* AINRMUX */
469 static const char *wm8991_ainrmux[] =
470 {"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
471 
472 static SOC_ENUM_SINGLE_DECL(wm8991_ainrmux_enum,
473 			    WM8991_INPUT_MIXER1, WM8991_AINRMODE_SHIFT,
474 			    wm8991_ainrmux);
475 
476 static const struct snd_kcontrol_new wm8991_dapm_ainrmux_controls =
477 	SOC_DAPM_ENUM("Route", wm8991_ainrmux_enum);
478 
479 /* LOMIX */
480 static const struct snd_kcontrol_new wm8991_dapm_lomix_controls[] = {
481 	SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
482 		WM8991_LRBLO_BIT, 1, 0),
483 	SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
484 		WM8991_LLBLO_BIT, 1, 0),
485 	SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
486 		WM8991_LRI3LO_BIT, 1, 0),
487 	SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
488 		WM8991_LLI3LO_BIT, 1, 0),
489 	SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
490 		WM8991_LR12LO_BIT, 1, 0),
491 	SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
492 		WM8991_LL12LO_BIT, 1, 0),
493 	SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8991_OUTPUT_MIXER1,
494 		WM8991_LDLO_BIT, 1, 0),
495 };
496 
497 /* ROMIX */
498 static const struct snd_kcontrol_new wm8991_dapm_romix_controls[] = {
499 	SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
500 		WM8991_RLBRO_BIT, 1, 0),
501 	SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
502 		WM8991_RRBRO_BIT, 1, 0),
503 	SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
504 		WM8991_RLI3RO_BIT, 1, 0),
505 	SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
506 		WM8991_RRI3RO_BIT, 1, 0),
507 	SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
508 		WM8991_RL12RO_BIT, 1, 0),
509 	SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
510 		WM8991_RR12RO_BIT, 1, 0),
511 	SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8991_OUTPUT_MIXER2,
512 		WM8991_RDRO_BIT, 1, 0),
513 };
514 
515 /* LONMIX */
516 static const struct snd_kcontrol_new wm8991_dapm_lonmix_controls[] = {
517 	SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
518 		WM8991_LLOPGALON_BIT, 1, 0),
519 	SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER1,
520 		WM8991_LROPGALON_BIT, 1, 0),
521 	SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8991_LINE_MIXER1,
522 		WM8991_LOPLON_BIT, 1, 0),
523 };
524 
525 /* LOPMIX */
526 static const struct snd_kcontrol_new wm8991_dapm_lopmix_controls[] = {
527 	SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER1,
528 		WM8991_LR12LOP_BIT, 1, 0),
529 	SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER1,
530 		WM8991_LL12LOP_BIT, 1, 0),
531 	SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
532 		WM8991_LLOPGALOP_BIT, 1, 0),
533 };
534 
535 /* RONMIX */
536 static const struct snd_kcontrol_new wm8991_dapm_ronmix_controls[] = {
537 	SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
538 		WM8991_RROPGARON_BIT, 1, 0),
539 	SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER2,
540 		WM8991_RLOPGARON_BIT, 1, 0),
541 	SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8991_LINE_MIXER2,
542 		WM8991_ROPRON_BIT, 1, 0),
543 };
544 
545 /* ROPMIX */
546 static const struct snd_kcontrol_new wm8991_dapm_ropmix_controls[] = {
547 	SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER2,
548 		WM8991_RL12ROP_BIT, 1, 0),
549 	SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER2,
550 		WM8991_RR12ROP_BIT, 1, 0),
551 	SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
552 		WM8991_RROPGAROP_BIT, 1, 0),
553 };
554 
555 /* OUT3MIX */
556 static const struct snd_kcontrol_new wm8991_dapm_out3mix_controls[] = {
557 	SOC_DAPM_SINGLE("OUT3MIX LIN4RXN Bypass Switch", WM8991_OUT3_4_MIXER,
558 		WM8991_LI4O3_BIT, 1, 0),
559 	SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8991_OUT3_4_MIXER,
560 		WM8991_LPGAO3_BIT, 1, 0),
561 };
562 
563 /* OUT4MIX */
564 static const struct snd_kcontrol_new wm8991_dapm_out4mix_controls[] = {
565 	SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8991_OUT3_4_MIXER,
566 		WM8991_RPGAO4_BIT, 1, 0),
567 	SOC_DAPM_SINGLE("OUT4MIX RIN4RXP Bypass Switch", WM8991_OUT3_4_MIXER,
568 		WM8991_RI4O4_BIT, 1, 0),
569 };
570 
571 /* SPKMIX */
572 static const struct snd_kcontrol_new wm8991_dapm_spkmix_controls[] = {
573 	SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
574 		WM8991_LI2SPK_BIT, 1, 0),
575 	SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8991_SPEAKER_MIXER,
576 		WM8991_LB2SPK_BIT, 1, 0),
577 	SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8991_SPEAKER_MIXER,
578 		WM8991_LOPGASPK_BIT, 1, 0),
579 	SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8991_SPEAKER_MIXER,
580 		WM8991_LDSPK_BIT, 1, 0),
581 	SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8991_SPEAKER_MIXER,
582 		WM8991_RDSPK_BIT, 1, 0),
583 	SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8991_SPEAKER_MIXER,
584 		WM8991_ROPGASPK_BIT, 1, 0),
585 	SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8991_SPEAKER_MIXER,
586 		WM8991_RL12ROP_BIT, 1, 0),
587 	SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
588 		WM8991_RI2SPK_BIT, 1, 0),
589 };
590 
591 static const struct snd_soc_dapm_widget wm8991_dapm_widgets[] = {
592 	/* Input Side */
593 	/* Input Lines */
594 	SND_SOC_DAPM_INPUT("LIN1"),
595 	SND_SOC_DAPM_INPUT("LIN2"),
596 	SND_SOC_DAPM_INPUT("LIN3"),
597 	SND_SOC_DAPM_INPUT("LIN4RXN"),
598 	SND_SOC_DAPM_INPUT("RIN3"),
599 	SND_SOC_DAPM_INPUT("RIN4RXP"),
600 	SND_SOC_DAPM_INPUT("RIN1"),
601 	SND_SOC_DAPM_INPUT("RIN2"),
602 	SND_SOC_DAPM_INPUT("Internal ADC Source"),
603 
604 	SND_SOC_DAPM_SUPPLY("INL", WM8991_POWER_MANAGEMENT_2,
605 			    WM8991_AINL_ENA_BIT, 0, NULL, 0),
606 	SND_SOC_DAPM_SUPPLY("INR", WM8991_POWER_MANAGEMENT_2,
607 			    WM8991_AINR_ENA_BIT, 0, NULL, 0),
608 
609 	/* DACs */
610 	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8991_POWER_MANAGEMENT_2,
611 		WM8991_ADCL_ENA_BIT, 0),
612 	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8991_POWER_MANAGEMENT_2,
613 		WM8991_ADCR_ENA_BIT, 0),
614 
615 	/* Input PGAs */
616 	SND_SOC_DAPM_MIXER("LIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN12_ENA_BIT,
617 		0, &wm8991_dapm_lin12_pga_controls[0],
618 		ARRAY_SIZE(wm8991_dapm_lin12_pga_controls)),
619 	SND_SOC_DAPM_MIXER("LIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN34_ENA_BIT,
620 		0, &wm8991_dapm_lin34_pga_controls[0],
621 		ARRAY_SIZE(wm8991_dapm_lin34_pga_controls)),
622 	SND_SOC_DAPM_MIXER("RIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN12_ENA_BIT,
623 		0, &wm8991_dapm_rin12_pga_controls[0],
624 		ARRAY_SIZE(wm8991_dapm_rin12_pga_controls)),
625 	SND_SOC_DAPM_MIXER("RIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN34_ENA_BIT,
626 		0, &wm8991_dapm_rin34_pga_controls[0],
627 		ARRAY_SIZE(wm8991_dapm_rin34_pga_controls)),
628 
629 	/* INMIXL */
630 	SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
631 		&wm8991_dapm_inmixl_controls[0],
632 		ARRAY_SIZE(wm8991_dapm_inmixl_controls)),
633 
634 	/* AINLMUX */
635 	SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0,
636 		&wm8991_dapm_ainlmux_controls),
637 
638 	/* INMIXR */
639 	SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
640 		&wm8991_dapm_inmixr_controls[0],
641 		ARRAY_SIZE(wm8991_dapm_inmixr_controls)),
642 
643 	/* AINRMUX */
644 	SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0,
645 		&wm8991_dapm_ainrmux_controls),
646 
647 	/* Output Side */
648 	/* DACs */
649 	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8991_POWER_MANAGEMENT_3,
650 		WM8991_DACL_ENA_BIT, 0),
651 	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8991_POWER_MANAGEMENT_3,
652 		WM8991_DACR_ENA_BIT, 0),
653 
654 	/* LOMIX */
655 	SND_SOC_DAPM_MIXER_E("LOMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOMIX_ENA_BIT,
656 		0, &wm8991_dapm_lomix_controls[0],
657 		ARRAY_SIZE(wm8991_dapm_lomix_controls),
658 		outmixer_event, SND_SOC_DAPM_PRE_REG),
659 
660 	/* LONMIX */
661 	SND_SOC_DAPM_MIXER("LONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LON_ENA_BIT, 0,
662 		&wm8991_dapm_lonmix_controls[0],
663 		ARRAY_SIZE(wm8991_dapm_lonmix_controls)),
664 
665 	/* LOPMIX */
666 	SND_SOC_DAPM_MIXER("LOPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOP_ENA_BIT, 0,
667 		&wm8991_dapm_lopmix_controls[0],
668 		ARRAY_SIZE(wm8991_dapm_lopmix_controls)),
669 
670 	/* OUT3MIX */
671 	SND_SOC_DAPM_MIXER("OUT3MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT3_ENA_BIT, 0,
672 		&wm8991_dapm_out3mix_controls[0],
673 		ARRAY_SIZE(wm8991_dapm_out3mix_controls)),
674 
675 	/* SPKMIX */
676 	SND_SOC_DAPM_MIXER_E("SPKMIX", WM8991_POWER_MANAGEMENT_1, WM8991_SPK_ENA_BIT, 0,
677 		&wm8991_dapm_spkmix_controls[0],
678 		ARRAY_SIZE(wm8991_dapm_spkmix_controls), outmixer_event,
679 		SND_SOC_DAPM_PRE_REG),
680 
681 	/* OUT4MIX */
682 	SND_SOC_DAPM_MIXER("OUT4MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT4_ENA_BIT, 0,
683 		&wm8991_dapm_out4mix_controls[0],
684 		ARRAY_SIZE(wm8991_dapm_out4mix_controls)),
685 
686 	/* ROPMIX */
687 	SND_SOC_DAPM_MIXER("ROPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROP_ENA_BIT, 0,
688 		&wm8991_dapm_ropmix_controls[0],
689 		ARRAY_SIZE(wm8991_dapm_ropmix_controls)),
690 
691 	/* RONMIX */
692 	SND_SOC_DAPM_MIXER("RONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_RON_ENA_BIT, 0,
693 		&wm8991_dapm_ronmix_controls[0],
694 		ARRAY_SIZE(wm8991_dapm_ronmix_controls)),
695 
696 	/* ROMIX */
697 	SND_SOC_DAPM_MIXER_E("ROMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROMIX_ENA_BIT,
698 		0, &wm8991_dapm_romix_controls[0],
699 		ARRAY_SIZE(wm8991_dapm_romix_controls),
700 		outmixer_event, SND_SOC_DAPM_PRE_REG),
701 
702 	/* LOUT PGA */
703 	SND_SOC_DAPM_PGA("LOUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_LOUT_ENA_BIT, 0,
704 		NULL, 0),
705 
706 	/* ROUT PGA */
707 	SND_SOC_DAPM_PGA("ROUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_ROUT_ENA_BIT, 0,
708 		NULL, 0),
709 
710 	/* LOPGA */
711 	SND_SOC_DAPM_PGA("LOPGA", WM8991_POWER_MANAGEMENT_3, WM8991_LOPGA_ENA_BIT, 0,
712 		NULL, 0),
713 
714 	/* ROPGA */
715 	SND_SOC_DAPM_PGA("ROPGA", WM8991_POWER_MANAGEMENT_3, WM8991_ROPGA_ENA_BIT, 0,
716 		NULL, 0),
717 
718 	/* MICBIAS */
719 	SND_SOC_DAPM_SUPPLY("MICBIAS", WM8991_POWER_MANAGEMENT_1,
720 			    WM8991_MICBIAS_ENA_BIT, 0, NULL, 0),
721 
722 	SND_SOC_DAPM_OUTPUT("LON"),
723 	SND_SOC_DAPM_OUTPUT("LOP"),
724 	SND_SOC_DAPM_OUTPUT("OUT3"),
725 	SND_SOC_DAPM_OUTPUT("LOUT"),
726 	SND_SOC_DAPM_OUTPUT("SPKN"),
727 	SND_SOC_DAPM_OUTPUT("SPKP"),
728 	SND_SOC_DAPM_OUTPUT("ROUT"),
729 	SND_SOC_DAPM_OUTPUT("OUT4"),
730 	SND_SOC_DAPM_OUTPUT("ROP"),
731 	SND_SOC_DAPM_OUTPUT("RON"),
732 	SND_SOC_DAPM_OUTPUT("OUT"),
733 
734 	SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
735 };
736 
737 static const struct snd_soc_dapm_route wm8991_dapm_routes[] = {
738 	/* Make DACs turn on when playing even if not mixed into any outputs */
739 	{"Internal DAC Sink", NULL, "Left DAC"},
740 	{"Internal DAC Sink", NULL, "Right DAC"},
741 
742 	/* Make ADCs turn on when recording even if not mixed from any inputs */
743 	{"Left ADC", NULL, "Internal ADC Source"},
744 	{"Right ADC", NULL, "Internal ADC Source"},
745 
746 	/* Input Side */
747 	{"INMIXL", NULL, "INL"},
748 	{"AINLMUX", NULL, "INL"},
749 	{"INMIXR", NULL, "INR"},
750 	{"AINRMUX", NULL, "INR"},
751 	/* LIN12 PGA */
752 	{"LIN12 PGA", "LIN1 Switch", "LIN1"},
753 	{"LIN12 PGA", "LIN2 Switch", "LIN2"},
754 	/* LIN34 PGA */
755 	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
756 	{"LIN34 PGA", "LIN4 Switch", "LIN4RXN"},
757 	/* INMIXL */
758 	{"INMIXL", "Record Left Volume", "LOMIX"},
759 	{"INMIXL", "LIN2 Volume", "LIN2"},
760 	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
761 	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
762 	/* AINLMUX */
763 	{"AINLMUX", "INMIXL Mix", "INMIXL"},
764 	{"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
765 	{"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
766 	{"AINLMUX", "RXVOICE Mix", "LIN4RXN"},
767 	{"AINLMUX", "RXVOICE Mix", "RIN4RXP"},
768 	/* ADC */
769 	{"Left ADC", NULL, "AINLMUX"},
770 
771 	/* RIN12 PGA */
772 	{"RIN12 PGA", "RIN1 Switch", "RIN1"},
773 	{"RIN12 PGA", "RIN2 Switch", "RIN2"},
774 	/* RIN34 PGA */
775 	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
776 	{"RIN34 PGA", "RIN4 Switch", "RIN4RXP"},
777 	/* INMIXL */
778 	{"INMIXR", "Record Right Volume", "ROMIX"},
779 	{"INMIXR", "RIN2 Volume", "RIN2"},
780 	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
781 	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
782 	/* AINRMUX */
783 	{"AINRMUX", "INMIXR Mix", "INMIXR"},
784 	{"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
785 	{"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
786 	{"AINRMUX", "RXVOICE Mix", "LIN4RXN"},
787 	{"AINRMUX", "RXVOICE Mix", "RIN4RXP"},
788 	/* ADC */
789 	{"Right ADC", NULL, "AINRMUX"},
790 
791 	/* LOMIX */
792 	{"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
793 	{"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
794 	{"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
795 	{"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
796 	{"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
797 	{"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
798 	{"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
799 
800 	/* ROMIX */
801 	{"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
802 	{"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
803 	{"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
804 	{"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
805 	{"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
806 	{"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
807 	{"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
808 
809 	/* SPKMIX */
810 	{"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
811 	{"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
812 	{"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
813 	{"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
814 	{"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
815 	{"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
816 	{"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
817 	{"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
818 
819 	/* LONMIX */
820 	{"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
821 	{"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
822 	{"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
823 
824 	/* LOPMIX */
825 	{"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
826 	{"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
827 	{"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
828 
829 	/* OUT3MIX */
830 	{"OUT3MIX", "OUT3MIX LIN4RXN Bypass Switch", "LIN4RXN"},
831 	{"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
832 
833 	/* OUT4MIX */
834 	{"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
835 	{"OUT4MIX", "OUT4MIX RIN4RXP Bypass Switch", "RIN4RXP"},
836 
837 	/* RONMIX */
838 	{"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
839 	{"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
840 	{"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
841 
842 	/* ROPMIX */
843 	{"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
844 	{"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
845 	{"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
846 
847 	/* Out Mixer PGAs */
848 	{"LOPGA", NULL, "LOMIX"},
849 	{"ROPGA", NULL, "ROMIX"},
850 
851 	{"LOUT PGA", NULL, "LOMIX"},
852 	{"ROUT PGA", NULL, "ROMIX"},
853 
854 	/* Output Pins */
855 	{"LON", NULL, "LONMIX"},
856 	{"LOP", NULL, "LOPMIX"},
857 	{"OUT", NULL, "OUT3MIX"},
858 	{"LOUT", NULL, "LOUT PGA"},
859 	{"SPKN", NULL, "SPKMIX"},
860 	{"ROUT", NULL, "ROUT PGA"},
861 	{"OUT4", NULL, "OUT4MIX"},
862 	{"ROP", NULL, "ROPMIX"},
863 	{"RON", NULL, "RONMIX"},
864 };
865 
866 /* PLL divisors */
867 struct _pll_div {
868 	u32 div2;
869 	u32 n;
870 	u32 k;
871 };
872 
873 /* The size in bits of the pll divide multiplied by 10
874  * to allow rounding later */
875 #define FIXED_PLL_SIZE ((1 << 16) * 10)
876 
877 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
878 			unsigned int source)
879 {
880 	u64 Kpart;
881 	unsigned int K, Ndiv, Nmod;
882 
883 
884 	Ndiv = target / source;
885 	if (Ndiv < 6) {
886 		source >>= 1;
887 		pll_div->div2 = 1;
888 		Ndiv = target / source;
889 	} else
890 		pll_div->div2 = 0;
891 
892 	if ((Ndiv < 6) || (Ndiv > 12))
893 		printk(KERN_WARNING
894 		       "WM8991 N value outwith recommended range! N = %d\n", Ndiv);
895 
896 	pll_div->n = Ndiv;
897 	Nmod = target % source;
898 	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
899 
900 	do_div(Kpart, source);
901 
902 	K = Kpart & 0xFFFFFFFF;
903 
904 	/* Check if we need to round */
905 	if ((K % 10) >= 5)
906 		K += 5;
907 
908 	/* Move down to proper range now rounding is done */
909 	K /= 10;
910 
911 	pll_div->k = K;
912 }
913 
914 static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
915 			      int pll_id, int src, unsigned int freq_in, unsigned int freq_out)
916 {
917 	u16 reg;
918 	struct snd_soc_component *component = codec_dai->component;
919 	struct _pll_div pll_div;
920 
921 	if (freq_in && freq_out) {
922 		pll_factors(&pll_div, freq_out * 4, freq_in);
923 
924 		/* Turn on PLL */
925 		reg = snd_soc_component_read(component, WM8991_POWER_MANAGEMENT_2);
926 		reg |= WM8991_PLL_ENA;
927 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
928 
929 		/* sysclk comes from PLL */
930 		reg = snd_soc_component_read(component, WM8991_CLOCKING_2);
931 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
932 
933 		/* set up N , fractional mode and pre-divisor if necessary */
934 		snd_soc_component_write(component, WM8991_PLL1, pll_div.n | WM8991_SDM |
935 			      (pll_div.div2 ? WM8991_PRESCALE : 0));
936 		snd_soc_component_write(component, WM8991_PLL2, (u8)(pll_div.k>>8));
937 		snd_soc_component_write(component, WM8991_PLL3, (u8)(pll_div.k & 0xFF));
938 	} else {
939 		/* Turn on PLL */
940 		reg = snd_soc_component_read(component, WM8991_POWER_MANAGEMENT_2);
941 		reg &= ~WM8991_PLL_ENA;
942 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
943 	}
944 	return 0;
945 }
946 
947 /*
948  * Set's ADC and Voice DAC format.
949  */
950 static int wm8991_set_dai_fmt(struct snd_soc_dai *codec_dai,
951 			      unsigned int fmt)
952 {
953 	struct snd_soc_component *component = codec_dai->component;
954 	u16 audio1, audio3;
955 
956 	audio1 = snd_soc_component_read(component, WM8991_AUDIO_INTERFACE_1);
957 	audio3 = snd_soc_component_read(component, WM8991_AUDIO_INTERFACE_3);
958 
959 	/* set master/slave audio interface */
960 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
961 	case SND_SOC_DAIFMT_CBS_CFS:
962 		audio3 &= ~WM8991_AIF_MSTR1;
963 		break;
964 	case SND_SOC_DAIFMT_CBM_CFM:
965 		audio3 |= WM8991_AIF_MSTR1;
966 		break;
967 	default:
968 		return -EINVAL;
969 	}
970 
971 	audio1 &= ~WM8991_AIF_FMT_MASK;
972 
973 	/* interface format */
974 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
975 	case SND_SOC_DAIFMT_I2S:
976 		audio1 |= WM8991_AIF_TMF_I2S;
977 		audio1 &= ~WM8991_AIF_LRCLK_INV;
978 		break;
979 	case SND_SOC_DAIFMT_RIGHT_J:
980 		audio1 |= WM8991_AIF_TMF_RIGHTJ;
981 		audio1 &= ~WM8991_AIF_LRCLK_INV;
982 		break;
983 	case SND_SOC_DAIFMT_LEFT_J:
984 		audio1 |= WM8991_AIF_TMF_LEFTJ;
985 		audio1 &= ~WM8991_AIF_LRCLK_INV;
986 		break;
987 	case SND_SOC_DAIFMT_DSP_A:
988 		audio1 |= WM8991_AIF_TMF_DSP;
989 		audio1 &= ~WM8991_AIF_LRCLK_INV;
990 		break;
991 	case SND_SOC_DAIFMT_DSP_B:
992 		audio1 |= WM8991_AIF_TMF_DSP | WM8991_AIF_LRCLK_INV;
993 		break;
994 	default:
995 		return -EINVAL;
996 	}
997 
998 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
999 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_3, audio3);
1000 	return 0;
1001 }
1002 
1003 static int wm8991_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1004 				 int div_id, int div)
1005 {
1006 	struct snd_soc_component *component = codec_dai->component;
1007 	u16 reg;
1008 
1009 	switch (div_id) {
1010 	case WM8991_MCLK_DIV:
1011 		reg = snd_soc_component_read(component, WM8991_CLOCKING_2) &
1012 		      ~WM8991_MCLK_DIV_MASK;
1013 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1014 		break;
1015 	case WM8991_DACCLK_DIV:
1016 		reg = snd_soc_component_read(component, WM8991_CLOCKING_2) &
1017 		      ~WM8991_DAC_CLKDIV_MASK;
1018 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1019 		break;
1020 	case WM8991_ADCCLK_DIV:
1021 		reg = snd_soc_component_read(component, WM8991_CLOCKING_2) &
1022 		      ~WM8991_ADC_CLKDIV_MASK;
1023 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1024 		break;
1025 	case WM8991_BCLK_DIV:
1026 		reg = snd_soc_component_read(component, WM8991_CLOCKING_1) &
1027 		      ~WM8991_BCLK_DIV_MASK;
1028 		snd_soc_component_write(component, WM8991_CLOCKING_1, reg | div);
1029 		break;
1030 	default:
1031 		return -EINVAL;
1032 	}
1033 
1034 	return 0;
1035 }
1036 
1037 /*
1038  * Set PCM DAI bit size and sample rate.
1039  */
1040 static int wm8991_hw_params(struct snd_pcm_substream *substream,
1041 			    struct snd_pcm_hw_params *params,
1042 			    struct snd_soc_dai *dai)
1043 {
1044 	struct snd_soc_component *component = dai->component;
1045 	u16 audio1 = snd_soc_component_read(component, WM8991_AUDIO_INTERFACE_1);
1046 
1047 	audio1 &= ~WM8991_AIF_WL_MASK;
1048 	/* bit size */
1049 	switch (params_width(params)) {
1050 	case 16:
1051 		break;
1052 	case 20:
1053 		audio1 |= WM8991_AIF_WL_20BITS;
1054 		break;
1055 	case 24:
1056 		audio1 |= WM8991_AIF_WL_24BITS;
1057 		break;
1058 	case 32:
1059 		audio1 |= WM8991_AIF_WL_32BITS;
1060 		break;
1061 	}
1062 
1063 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
1064 	return 0;
1065 }
1066 
1067 static int wm8991_mute(struct snd_soc_dai *dai, int mute, int direction)
1068 {
1069 	struct snd_soc_component *component = dai->component;
1070 	u16 val;
1071 
1072 	val  = snd_soc_component_read(component, WM8991_DAC_CTRL) & ~WM8991_DAC_MUTE;
1073 	if (mute)
1074 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1075 	else
1076 		snd_soc_component_write(component, WM8991_DAC_CTRL, val);
1077 	return 0;
1078 }
1079 
1080 static int wm8991_set_bias_level(struct snd_soc_component *component,
1081 				 enum snd_soc_bias_level level)
1082 {
1083 	struct wm8991_priv *wm8991 = snd_soc_component_get_drvdata(component);
1084 	u16 val;
1085 
1086 	switch (level) {
1087 	case SND_SOC_BIAS_ON:
1088 		break;
1089 
1090 	case SND_SOC_BIAS_PREPARE:
1091 		/* VMID=2*50k */
1092 		val = snd_soc_component_read(component, WM8991_POWER_MANAGEMENT_1) &
1093 		      ~WM8991_VMID_MODE_MASK;
1094 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x2);
1095 		break;
1096 
1097 	case SND_SOC_BIAS_STANDBY:
1098 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1099 			regcache_sync(wm8991->regmap);
1100 			/* Enable all output discharge bits */
1101 			snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1102 				      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1103 				      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1104 				      WM8991_DIS_ROUT);
1105 
1106 			/* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
1107 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1108 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1109 				      WM8991_VMIDTOG);
1110 
1111 			/* Delay to allow output caps to discharge */
1112 			msleep(300);
1113 
1114 			/* Disable VMIDTOG */
1115 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1116 				      WM8991_BUFDCOPEN | WM8991_POBCTRL);
1117 
1118 			/* disable all output discharge bits */
1119 			snd_soc_component_write(component, WM8991_ANTIPOP1, 0);
1120 
1121 			/* Enable outputs */
1122 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1b00);
1123 
1124 			msleep(50);
1125 
1126 			/* Enable VMID at 2x50k */
1127 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f02);
1128 
1129 			msleep(100);
1130 
1131 			/* Enable VREF */
1132 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1133 
1134 			msleep(600);
1135 
1136 			/* Enable BUFIOEN */
1137 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1138 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1139 				      WM8991_BUFIOEN);
1140 
1141 			/* Disable outputs */
1142 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x3);
1143 
1144 			/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1145 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_BUFIOEN);
1146 		}
1147 
1148 		/* VMID=2*250k */
1149 		val = snd_soc_component_read(component, WM8991_POWER_MANAGEMENT_1) &
1150 		      ~WM8991_VMID_MODE_MASK;
1151 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x4);
1152 		break;
1153 
1154 	case SND_SOC_BIAS_OFF:
1155 		/* Enable POBCTRL and SOFT_ST */
1156 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1157 			      WM8991_POBCTRL | WM8991_BUFIOEN);
1158 
1159 		/* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
1160 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1161 			      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1162 			      WM8991_BUFIOEN);
1163 
1164 		/* mute DAC */
1165 		val = snd_soc_component_read(component, WM8991_DAC_CTRL);
1166 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1167 
1168 		/* Enable any disabled outputs */
1169 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1170 
1171 		/* Disable VMID */
1172 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f01);
1173 
1174 		msleep(300);
1175 
1176 		/* Enable all output discharge bits */
1177 		snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1178 			      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1179 			      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1180 			      WM8991_DIS_ROUT);
1181 
1182 		/* Disable VREF */
1183 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x0);
1184 
1185 		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1186 		snd_soc_component_write(component, WM8991_ANTIPOP2, 0x0);
1187 		regcache_mark_dirty(wm8991->regmap);
1188 		break;
1189 	}
1190 
1191 	return 0;
1192 }
1193 
1194 #define WM8991_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1195 			SNDRV_PCM_FMTBIT_S24_LE)
1196 
1197 static const struct snd_soc_dai_ops wm8991_ops = {
1198 	.hw_params = wm8991_hw_params,
1199 	.mute_stream = wm8991_mute,
1200 	.set_fmt = wm8991_set_dai_fmt,
1201 	.set_clkdiv = wm8991_set_dai_clkdiv,
1202 	.set_pll = wm8991_set_dai_pll,
1203 	.no_capture_mute = 1,
1204 };
1205 
1206 /*
1207  * The WM8991 supports 2 different and mutually exclusive DAI
1208  * configurations.
1209  *
1210  * 1. ADC/DAC on Primary Interface
1211  * 2. ADC on Primary Interface/DAC on secondary
1212  */
1213 static struct snd_soc_dai_driver wm8991_dai = {
1214 	/* ADC/DAC on primary */
1215 	.name = "wm8991",
1216 	.id = 1,
1217 	.playback = {
1218 		.stream_name = "Playback",
1219 		.channels_min = 1,
1220 		.channels_max = 2,
1221 		.rates = SNDRV_PCM_RATE_8000_96000,
1222 		.formats = WM8991_FORMATS
1223 	},
1224 	.capture = {
1225 		.stream_name = "Capture",
1226 		.channels_min = 1,
1227 		.channels_max = 2,
1228 		.rates = SNDRV_PCM_RATE_8000_96000,
1229 		.formats = WM8991_FORMATS
1230 	},
1231 	.ops = &wm8991_ops
1232 };
1233 
1234 static const struct snd_soc_component_driver soc_component_dev_wm8991 = {
1235 	.set_bias_level		= wm8991_set_bias_level,
1236 	.controls		= wm8991_snd_controls,
1237 	.num_controls		= ARRAY_SIZE(wm8991_snd_controls),
1238 	.dapm_widgets		= wm8991_dapm_widgets,
1239 	.num_dapm_widgets	= ARRAY_SIZE(wm8991_dapm_widgets),
1240 	.dapm_routes		= wm8991_dapm_routes,
1241 	.num_dapm_routes	= ARRAY_SIZE(wm8991_dapm_routes),
1242 	.suspend_bias_off	= 1,
1243 	.idle_bias_on		= 1,
1244 	.use_pmdown_time	= 1,
1245 	.endianness		= 1,
1246 	.non_legacy_dai_naming	= 1,
1247 };
1248 
1249 static const struct regmap_config wm8991_regmap = {
1250 	.reg_bits = 8,
1251 	.val_bits = 16,
1252 
1253 	.max_register = WM8991_PLL3,
1254 	.volatile_reg = wm8991_volatile,
1255 	.reg_defaults = wm8991_reg_defaults,
1256 	.num_reg_defaults = ARRAY_SIZE(wm8991_reg_defaults),
1257 	.cache_type = REGCACHE_RBTREE,
1258 };
1259 
1260 static int wm8991_i2c_probe(struct i2c_client *i2c)
1261 {
1262 	struct wm8991_priv *wm8991;
1263 	unsigned int val;
1264 	int ret;
1265 
1266 	wm8991 = devm_kzalloc(&i2c->dev, sizeof(*wm8991), GFP_KERNEL);
1267 	if (!wm8991)
1268 		return -ENOMEM;
1269 
1270 	wm8991->regmap = devm_regmap_init_i2c(i2c, &wm8991_regmap);
1271 	if (IS_ERR(wm8991->regmap))
1272 		return PTR_ERR(wm8991->regmap);
1273 
1274 	i2c_set_clientdata(i2c, wm8991);
1275 
1276 	ret = regmap_read(wm8991->regmap, WM8991_RESET, &val);
1277 	if (ret != 0) {
1278 		dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);
1279 		return ret;
1280 	}
1281 	if (val != 0x8991) {
1282 		dev_err(&i2c->dev, "Device with ID %x is not a WM8991\n", val);
1283 		return -EINVAL;
1284 	}
1285 
1286 	ret = regmap_write(wm8991->regmap, WM8991_RESET, 0);
1287 	if (ret < 0) {
1288 		dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1289 		return ret;
1290 	}
1291 
1292 	regmap_update_bits(wm8991->regmap, WM8991_AUDIO_INTERFACE_4,
1293 			   WM8991_ALRCGPIO1, WM8991_ALRCGPIO1);
1294 
1295 	regmap_update_bits(wm8991->regmap, WM8991_GPIO1_GPIO2,
1296 			   WM8991_GPIO1_SEL_MASK, 1);
1297 
1298 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_1,
1299 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK,
1300 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK);
1301 
1302 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_2,
1303 			   WM8991_OPCLK_ENA, WM8991_OPCLK_ENA);
1304 
1305 	regmap_write(wm8991->regmap, WM8991_DAC_CTRL, 0);
1306 	regmap_write(wm8991->regmap, WM8991_LEFT_OUTPUT_VOLUME,
1307 		     0x50 | (1<<8));
1308 	regmap_write(wm8991->regmap, WM8991_RIGHT_OUTPUT_VOLUME,
1309 		     0x50 | (1<<8));
1310 
1311 	ret = devm_snd_soc_register_component(&i2c->dev,
1312 				     &soc_component_dev_wm8991, &wm8991_dai, 1);
1313 
1314 	return ret;
1315 }
1316 
1317 static const struct i2c_device_id wm8991_i2c_id[] = {
1318 	{ "wm8991", 0 },
1319 	{ }
1320 };
1321 MODULE_DEVICE_TABLE(i2c, wm8991_i2c_id);
1322 
1323 static struct i2c_driver wm8991_i2c_driver = {
1324 	.driver = {
1325 		.name = "wm8991",
1326 	},
1327 	.probe_new = wm8991_i2c_probe,
1328 	.id_table = wm8991_i2c_id,
1329 };
1330 
1331 module_i2c_driver(wm8991_i2c_driver);
1332 
1333 MODULE_DESCRIPTION("ASoC WM8991 driver");
1334 MODULE_AUTHOR("Graeme Gregory");
1335 MODULE_LICENSE("GPL");
1336