xref: /openbmc/linux/sound/soc/codecs/wm8991.c (revision 3dc4b6fb)
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_read32(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_read32(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_read32(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_read32(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_read32(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 /* RXVOICE */
480 static const struct snd_kcontrol_new wm8991_dapm_rxvoice_controls[] = {
481 	SOC_DAPM_SINGLE_TLV("LIN4RXN", WM8991_INPUT_MIXER5, WM8991_LR4BVOL_SHIFT,
482 		WM8991_LR4BVOL_MASK, 0, in_mix_tlv),
483 	SOC_DAPM_SINGLE_TLV("RIN4RXP", WM8991_INPUT_MIXER6, WM8991_RL4BVOL_SHIFT,
484 		WM8991_RL4BVOL_MASK, 0, in_mix_tlv),
485 };
486 
487 /* LOMIX */
488 static const struct snd_kcontrol_new wm8991_dapm_lomix_controls[] = {
489 	SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
490 		WM8991_LRBLO_BIT, 1, 0),
491 	SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
492 		WM8991_LLBLO_BIT, 1, 0),
493 	SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
494 		WM8991_LRI3LO_BIT, 1, 0),
495 	SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
496 		WM8991_LLI3LO_BIT, 1, 0),
497 	SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
498 		WM8991_LR12LO_BIT, 1, 0),
499 	SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
500 		WM8991_LL12LO_BIT, 1, 0),
501 	SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8991_OUTPUT_MIXER1,
502 		WM8991_LDLO_BIT, 1, 0),
503 };
504 
505 /* ROMIX */
506 static const struct snd_kcontrol_new wm8991_dapm_romix_controls[] = {
507 	SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
508 		WM8991_RLBRO_BIT, 1, 0),
509 	SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
510 		WM8991_RRBRO_BIT, 1, 0),
511 	SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
512 		WM8991_RLI3RO_BIT, 1, 0),
513 	SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
514 		WM8991_RRI3RO_BIT, 1, 0),
515 	SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
516 		WM8991_RL12RO_BIT, 1, 0),
517 	SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
518 		WM8991_RR12RO_BIT, 1, 0),
519 	SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8991_OUTPUT_MIXER2,
520 		WM8991_RDRO_BIT, 1, 0),
521 };
522 
523 /* LONMIX */
524 static const struct snd_kcontrol_new wm8991_dapm_lonmix_controls[] = {
525 	SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
526 		WM8991_LLOPGALON_BIT, 1, 0),
527 	SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER1,
528 		WM8991_LROPGALON_BIT, 1, 0),
529 	SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8991_LINE_MIXER1,
530 		WM8991_LOPLON_BIT, 1, 0),
531 };
532 
533 /* LOPMIX */
534 static const struct snd_kcontrol_new wm8991_dapm_lopmix_controls[] = {
535 	SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER1,
536 		WM8991_LR12LOP_BIT, 1, 0),
537 	SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER1,
538 		WM8991_LL12LOP_BIT, 1, 0),
539 	SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
540 		WM8991_LLOPGALOP_BIT, 1, 0),
541 };
542 
543 /* RONMIX */
544 static const struct snd_kcontrol_new wm8991_dapm_ronmix_controls[] = {
545 	SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
546 		WM8991_RROPGARON_BIT, 1, 0),
547 	SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER2,
548 		WM8991_RLOPGARON_BIT, 1, 0),
549 	SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8991_LINE_MIXER2,
550 		WM8991_ROPRON_BIT, 1, 0),
551 };
552 
553 /* ROPMIX */
554 static const struct snd_kcontrol_new wm8991_dapm_ropmix_controls[] = {
555 	SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER2,
556 		WM8991_RL12ROP_BIT, 1, 0),
557 	SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER2,
558 		WM8991_RR12ROP_BIT, 1, 0),
559 	SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
560 		WM8991_RROPGAROP_BIT, 1, 0),
561 };
562 
563 /* OUT3MIX */
564 static const struct snd_kcontrol_new wm8991_dapm_out3mix_controls[] = {
565 	SOC_DAPM_SINGLE("OUT3MIX LIN4RXN Bypass Switch", WM8991_OUT3_4_MIXER,
566 		WM8991_LI4O3_BIT, 1, 0),
567 	SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8991_OUT3_4_MIXER,
568 		WM8991_LPGAO3_BIT, 1, 0),
569 };
570 
571 /* OUT4MIX */
572 static const struct snd_kcontrol_new wm8991_dapm_out4mix_controls[] = {
573 	SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8991_OUT3_4_MIXER,
574 		WM8991_RPGAO4_BIT, 1, 0),
575 	SOC_DAPM_SINGLE("OUT4MIX RIN4RXP Bypass Switch", WM8991_OUT3_4_MIXER,
576 		WM8991_RI4O4_BIT, 1, 0),
577 };
578 
579 /* SPKMIX */
580 static const struct snd_kcontrol_new wm8991_dapm_spkmix_controls[] = {
581 	SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
582 		WM8991_LI2SPK_BIT, 1, 0),
583 	SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8991_SPEAKER_MIXER,
584 		WM8991_LB2SPK_BIT, 1, 0),
585 	SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8991_SPEAKER_MIXER,
586 		WM8991_LOPGASPK_BIT, 1, 0),
587 	SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8991_SPEAKER_MIXER,
588 		WM8991_LDSPK_BIT, 1, 0),
589 	SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8991_SPEAKER_MIXER,
590 		WM8991_RDSPK_BIT, 1, 0),
591 	SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8991_SPEAKER_MIXER,
592 		WM8991_ROPGASPK_BIT, 1, 0),
593 	SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8991_SPEAKER_MIXER,
594 		WM8991_RL12ROP_BIT, 1, 0),
595 	SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
596 		WM8991_RI2SPK_BIT, 1, 0),
597 };
598 
599 static const struct snd_soc_dapm_widget wm8991_dapm_widgets[] = {
600 	/* Input Side */
601 	/* Input Lines */
602 	SND_SOC_DAPM_INPUT("LIN1"),
603 	SND_SOC_DAPM_INPUT("LIN2"),
604 	SND_SOC_DAPM_INPUT("LIN3"),
605 	SND_SOC_DAPM_INPUT("LIN4RXN"),
606 	SND_SOC_DAPM_INPUT("RIN3"),
607 	SND_SOC_DAPM_INPUT("RIN4RXP"),
608 	SND_SOC_DAPM_INPUT("RIN1"),
609 	SND_SOC_DAPM_INPUT("RIN2"),
610 	SND_SOC_DAPM_INPUT("Internal ADC Source"),
611 
612 	SND_SOC_DAPM_SUPPLY("INL", WM8991_POWER_MANAGEMENT_2,
613 			    WM8991_AINL_ENA_BIT, 0, NULL, 0),
614 	SND_SOC_DAPM_SUPPLY("INR", WM8991_POWER_MANAGEMENT_2,
615 			    WM8991_AINR_ENA_BIT, 0, NULL, 0),
616 
617 	/* DACs */
618 	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8991_POWER_MANAGEMENT_2,
619 		WM8991_ADCL_ENA_BIT, 0),
620 	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8991_POWER_MANAGEMENT_2,
621 		WM8991_ADCR_ENA_BIT, 0),
622 
623 	/* Input PGAs */
624 	SND_SOC_DAPM_MIXER("LIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN12_ENA_BIT,
625 		0, &wm8991_dapm_lin12_pga_controls[0],
626 		ARRAY_SIZE(wm8991_dapm_lin12_pga_controls)),
627 	SND_SOC_DAPM_MIXER("LIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN34_ENA_BIT,
628 		0, &wm8991_dapm_lin34_pga_controls[0],
629 		ARRAY_SIZE(wm8991_dapm_lin34_pga_controls)),
630 	SND_SOC_DAPM_MIXER("RIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN12_ENA_BIT,
631 		0, &wm8991_dapm_rin12_pga_controls[0],
632 		ARRAY_SIZE(wm8991_dapm_rin12_pga_controls)),
633 	SND_SOC_DAPM_MIXER("RIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN34_ENA_BIT,
634 		0, &wm8991_dapm_rin34_pga_controls[0],
635 		ARRAY_SIZE(wm8991_dapm_rin34_pga_controls)),
636 
637 	/* INMIXL */
638 	SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
639 		&wm8991_dapm_inmixl_controls[0],
640 		ARRAY_SIZE(wm8991_dapm_inmixl_controls)),
641 
642 	/* AINLMUX */
643 	SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0,
644 		&wm8991_dapm_ainlmux_controls),
645 
646 	/* INMIXR */
647 	SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
648 		&wm8991_dapm_inmixr_controls[0],
649 		ARRAY_SIZE(wm8991_dapm_inmixr_controls)),
650 
651 	/* AINRMUX */
652 	SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0,
653 		&wm8991_dapm_ainrmux_controls),
654 
655 	/* Output Side */
656 	/* DACs */
657 	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8991_POWER_MANAGEMENT_3,
658 		WM8991_DACL_ENA_BIT, 0),
659 	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8991_POWER_MANAGEMENT_3,
660 		WM8991_DACR_ENA_BIT, 0),
661 
662 	/* LOMIX */
663 	SND_SOC_DAPM_MIXER_E("LOMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOMIX_ENA_BIT,
664 		0, &wm8991_dapm_lomix_controls[0],
665 		ARRAY_SIZE(wm8991_dapm_lomix_controls),
666 		outmixer_event, SND_SOC_DAPM_PRE_REG),
667 
668 	/* LONMIX */
669 	SND_SOC_DAPM_MIXER("LONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LON_ENA_BIT, 0,
670 		&wm8991_dapm_lonmix_controls[0],
671 		ARRAY_SIZE(wm8991_dapm_lonmix_controls)),
672 
673 	/* LOPMIX */
674 	SND_SOC_DAPM_MIXER("LOPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOP_ENA_BIT, 0,
675 		&wm8991_dapm_lopmix_controls[0],
676 		ARRAY_SIZE(wm8991_dapm_lopmix_controls)),
677 
678 	/* OUT3MIX */
679 	SND_SOC_DAPM_MIXER("OUT3MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT3_ENA_BIT, 0,
680 		&wm8991_dapm_out3mix_controls[0],
681 		ARRAY_SIZE(wm8991_dapm_out3mix_controls)),
682 
683 	/* SPKMIX */
684 	SND_SOC_DAPM_MIXER_E("SPKMIX", WM8991_POWER_MANAGEMENT_1, WM8991_SPK_ENA_BIT, 0,
685 		&wm8991_dapm_spkmix_controls[0],
686 		ARRAY_SIZE(wm8991_dapm_spkmix_controls), outmixer_event,
687 		SND_SOC_DAPM_PRE_REG),
688 
689 	/* OUT4MIX */
690 	SND_SOC_DAPM_MIXER("OUT4MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT4_ENA_BIT, 0,
691 		&wm8991_dapm_out4mix_controls[0],
692 		ARRAY_SIZE(wm8991_dapm_out4mix_controls)),
693 
694 	/* ROPMIX */
695 	SND_SOC_DAPM_MIXER("ROPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROP_ENA_BIT, 0,
696 		&wm8991_dapm_ropmix_controls[0],
697 		ARRAY_SIZE(wm8991_dapm_ropmix_controls)),
698 
699 	/* RONMIX */
700 	SND_SOC_DAPM_MIXER("RONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_RON_ENA_BIT, 0,
701 		&wm8991_dapm_ronmix_controls[0],
702 		ARRAY_SIZE(wm8991_dapm_ronmix_controls)),
703 
704 	/* ROMIX */
705 	SND_SOC_DAPM_MIXER_E("ROMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROMIX_ENA_BIT,
706 		0, &wm8991_dapm_romix_controls[0],
707 		ARRAY_SIZE(wm8991_dapm_romix_controls),
708 		outmixer_event, SND_SOC_DAPM_PRE_REG),
709 
710 	/* LOUT PGA */
711 	SND_SOC_DAPM_PGA("LOUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_LOUT_ENA_BIT, 0,
712 		NULL, 0),
713 
714 	/* ROUT PGA */
715 	SND_SOC_DAPM_PGA("ROUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_ROUT_ENA_BIT, 0,
716 		NULL, 0),
717 
718 	/* LOPGA */
719 	SND_SOC_DAPM_PGA("LOPGA", WM8991_POWER_MANAGEMENT_3, WM8991_LOPGA_ENA_BIT, 0,
720 		NULL, 0),
721 
722 	/* ROPGA */
723 	SND_SOC_DAPM_PGA("ROPGA", WM8991_POWER_MANAGEMENT_3, WM8991_ROPGA_ENA_BIT, 0,
724 		NULL, 0),
725 
726 	/* MICBIAS */
727 	SND_SOC_DAPM_SUPPLY("MICBIAS", WM8991_POWER_MANAGEMENT_1,
728 			    WM8991_MICBIAS_ENA_BIT, 0, NULL, 0),
729 
730 	SND_SOC_DAPM_OUTPUT("LON"),
731 	SND_SOC_DAPM_OUTPUT("LOP"),
732 	SND_SOC_DAPM_OUTPUT("OUT3"),
733 	SND_SOC_DAPM_OUTPUT("LOUT"),
734 	SND_SOC_DAPM_OUTPUT("SPKN"),
735 	SND_SOC_DAPM_OUTPUT("SPKP"),
736 	SND_SOC_DAPM_OUTPUT("ROUT"),
737 	SND_SOC_DAPM_OUTPUT("OUT4"),
738 	SND_SOC_DAPM_OUTPUT("ROP"),
739 	SND_SOC_DAPM_OUTPUT("RON"),
740 	SND_SOC_DAPM_OUTPUT("OUT"),
741 
742 	SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
743 };
744 
745 static const struct snd_soc_dapm_route wm8991_dapm_routes[] = {
746 	/* Make DACs turn on when playing even if not mixed into any outputs */
747 	{"Internal DAC Sink", NULL, "Left DAC"},
748 	{"Internal DAC Sink", NULL, "Right DAC"},
749 
750 	/* Make ADCs turn on when recording even if not mixed from any inputs */
751 	{"Left ADC", NULL, "Internal ADC Source"},
752 	{"Right ADC", NULL, "Internal ADC Source"},
753 
754 	/* Input Side */
755 	{"INMIXL", NULL, "INL"},
756 	{"AINLMUX", NULL, "INL"},
757 	{"INMIXR", NULL, "INR"},
758 	{"AINRMUX", NULL, "INR"},
759 	/* LIN12 PGA */
760 	{"LIN12 PGA", "LIN1 Switch", "LIN1"},
761 	{"LIN12 PGA", "LIN2 Switch", "LIN2"},
762 	/* LIN34 PGA */
763 	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
764 	{"LIN34 PGA", "LIN4 Switch", "LIN4RXN"},
765 	/* INMIXL */
766 	{"INMIXL", "Record Left Volume", "LOMIX"},
767 	{"INMIXL", "LIN2 Volume", "LIN2"},
768 	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
769 	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
770 	/* AINLMUX */
771 	{"AINLMUX", "INMIXL Mix", "INMIXL"},
772 	{"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
773 	{"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
774 	{"AINLMUX", "RXVOICE Mix", "LIN4RXN"},
775 	{"AINLMUX", "RXVOICE Mix", "RIN4RXP"},
776 	/* ADC */
777 	{"Left ADC", NULL, "AINLMUX"},
778 
779 	/* RIN12 PGA */
780 	{"RIN12 PGA", "RIN1 Switch", "RIN1"},
781 	{"RIN12 PGA", "RIN2 Switch", "RIN2"},
782 	/* RIN34 PGA */
783 	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
784 	{"RIN34 PGA", "RIN4 Switch", "RIN4RXP"},
785 	/* INMIXL */
786 	{"INMIXR", "Record Right Volume", "ROMIX"},
787 	{"INMIXR", "RIN2 Volume", "RIN2"},
788 	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
789 	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
790 	/* AINRMUX */
791 	{"AINRMUX", "INMIXR Mix", "INMIXR"},
792 	{"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
793 	{"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
794 	{"AINRMUX", "RXVOICE Mix", "LIN4RXN"},
795 	{"AINRMUX", "RXVOICE Mix", "RIN4RXP"},
796 	/* ADC */
797 	{"Right ADC", NULL, "AINRMUX"},
798 
799 	/* LOMIX */
800 	{"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
801 	{"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
802 	{"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
803 	{"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
804 	{"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
805 	{"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
806 	{"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
807 
808 	/* ROMIX */
809 	{"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
810 	{"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
811 	{"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
812 	{"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
813 	{"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
814 	{"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
815 	{"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
816 
817 	/* SPKMIX */
818 	{"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
819 	{"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
820 	{"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
821 	{"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
822 	{"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
823 	{"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
824 	{"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
825 	{"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
826 
827 	/* LONMIX */
828 	{"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
829 	{"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
830 	{"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
831 
832 	/* LOPMIX */
833 	{"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
834 	{"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
835 	{"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
836 
837 	/* OUT3MIX */
838 	{"OUT3MIX", "OUT3MIX LIN4RXN Bypass Switch", "LIN4RXN"},
839 	{"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
840 
841 	/* OUT4MIX */
842 	{"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
843 	{"OUT4MIX", "OUT4MIX RIN4RXP Bypass Switch", "RIN4RXP"},
844 
845 	/* RONMIX */
846 	{"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
847 	{"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
848 	{"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
849 
850 	/* ROPMIX */
851 	{"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
852 	{"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
853 	{"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
854 
855 	/* Out Mixer PGAs */
856 	{"LOPGA", NULL, "LOMIX"},
857 	{"ROPGA", NULL, "ROMIX"},
858 
859 	{"LOUT PGA", NULL, "LOMIX"},
860 	{"ROUT PGA", NULL, "ROMIX"},
861 
862 	/* Output Pins */
863 	{"LON", NULL, "LONMIX"},
864 	{"LOP", NULL, "LOPMIX"},
865 	{"OUT", NULL, "OUT3MIX"},
866 	{"LOUT", NULL, "LOUT PGA"},
867 	{"SPKN", NULL, "SPKMIX"},
868 	{"ROUT", NULL, "ROUT PGA"},
869 	{"OUT4", NULL, "OUT4MIX"},
870 	{"ROP", NULL, "ROPMIX"},
871 	{"RON", NULL, "RONMIX"},
872 };
873 
874 /* PLL divisors */
875 struct _pll_div {
876 	u32 div2;
877 	u32 n;
878 	u32 k;
879 };
880 
881 /* The size in bits of the pll divide multiplied by 10
882  * to allow rounding later */
883 #define FIXED_PLL_SIZE ((1 << 16) * 10)
884 
885 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
886 			unsigned int source)
887 {
888 	u64 Kpart;
889 	unsigned int K, Ndiv, Nmod;
890 
891 
892 	Ndiv = target / source;
893 	if (Ndiv < 6) {
894 		source >>= 1;
895 		pll_div->div2 = 1;
896 		Ndiv = target / source;
897 	} else
898 		pll_div->div2 = 0;
899 
900 	if ((Ndiv < 6) || (Ndiv > 12))
901 		printk(KERN_WARNING
902 		       "WM8991 N value outwith recommended range! N = %d\n", Ndiv);
903 
904 	pll_div->n = Ndiv;
905 	Nmod = target % source;
906 	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
907 
908 	do_div(Kpart, source);
909 
910 	K = Kpart & 0xFFFFFFFF;
911 
912 	/* Check if we need to round */
913 	if ((K % 10) >= 5)
914 		K += 5;
915 
916 	/* Move down to proper range now rounding is done */
917 	K /= 10;
918 
919 	pll_div->k = K;
920 }
921 
922 static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
923 			      int pll_id, int src, unsigned int freq_in, unsigned int freq_out)
924 {
925 	u16 reg;
926 	struct snd_soc_component *component = codec_dai->component;
927 	struct _pll_div pll_div;
928 
929 	if (freq_in && freq_out) {
930 		pll_factors(&pll_div, freq_out * 4, freq_in);
931 
932 		/* Turn on PLL */
933 		reg = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_2);
934 		reg |= WM8991_PLL_ENA;
935 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
936 
937 		/* sysclk comes from PLL */
938 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2);
939 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
940 
941 		/* set up N , fractional mode and pre-divisor if necessary */
942 		snd_soc_component_write(component, WM8991_PLL1, pll_div.n | WM8991_SDM |
943 			      (pll_div.div2 ? WM8991_PRESCALE : 0));
944 		snd_soc_component_write(component, WM8991_PLL2, (u8)(pll_div.k>>8));
945 		snd_soc_component_write(component, WM8991_PLL3, (u8)(pll_div.k & 0xFF));
946 	} else {
947 		/* Turn on PLL */
948 		reg = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_2);
949 		reg &= ~WM8991_PLL_ENA;
950 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_2, reg);
951 	}
952 	return 0;
953 }
954 
955 /*
956  * Set's ADC and Voice DAC format.
957  */
958 static int wm8991_set_dai_fmt(struct snd_soc_dai *codec_dai,
959 			      unsigned int fmt)
960 {
961 	struct snd_soc_component *component = codec_dai->component;
962 	u16 audio1, audio3;
963 
964 	audio1 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_1);
965 	audio3 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_3);
966 
967 	/* set master/slave audio interface */
968 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
969 	case SND_SOC_DAIFMT_CBS_CFS:
970 		audio3 &= ~WM8991_AIF_MSTR1;
971 		break;
972 	case SND_SOC_DAIFMT_CBM_CFM:
973 		audio3 |= WM8991_AIF_MSTR1;
974 		break;
975 	default:
976 		return -EINVAL;
977 	}
978 
979 	audio1 &= ~WM8991_AIF_FMT_MASK;
980 
981 	/* interface format */
982 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
983 	case SND_SOC_DAIFMT_I2S:
984 		audio1 |= WM8991_AIF_TMF_I2S;
985 		audio1 &= ~WM8991_AIF_LRCLK_INV;
986 		break;
987 	case SND_SOC_DAIFMT_RIGHT_J:
988 		audio1 |= WM8991_AIF_TMF_RIGHTJ;
989 		audio1 &= ~WM8991_AIF_LRCLK_INV;
990 		break;
991 	case SND_SOC_DAIFMT_LEFT_J:
992 		audio1 |= WM8991_AIF_TMF_LEFTJ;
993 		audio1 &= ~WM8991_AIF_LRCLK_INV;
994 		break;
995 	case SND_SOC_DAIFMT_DSP_A:
996 		audio1 |= WM8991_AIF_TMF_DSP;
997 		audio1 &= ~WM8991_AIF_LRCLK_INV;
998 		break;
999 	case SND_SOC_DAIFMT_DSP_B:
1000 		audio1 |= WM8991_AIF_TMF_DSP | WM8991_AIF_LRCLK_INV;
1001 		break;
1002 	default:
1003 		return -EINVAL;
1004 	}
1005 
1006 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
1007 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_3, audio3);
1008 	return 0;
1009 }
1010 
1011 static int wm8991_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1012 				 int div_id, int div)
1013 {
1014 	struct snd_soc_component *component = codec_dai->component;
1015 	u16 reg;
1016 
1017 	switch (div_id) {
1018 	case WM8991_MCLK_DIV:
1019 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1020 		      ~WM8991_MCLK_DIV_MASK;
1021 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1022 		break;
1023 	case WM8991_DACCLK_DIV:
1024 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1025 		      ~WM8991_DAC_CLKDIV_MASK;
1026 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1027 		break;
1028 	case WM8991_ADCCLK_DIV:
1029 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_2) &
1030 		      ~WM8991_ADC_CLKDIV_MASK;
1031 		snd_soc_component_write(component, WM8991_CLOCKING_2, reg | div);
1032 		break;
1033 	case WM8991_BCLK_DIV:
1034 		reg = snd_soc_component_read32(component, WM8991_CLOCKING_1) &
1035 		      ~WM8991_BCLK_DIV_MASK;
1036 		snd_soc_component_write(component, WM8991_CLOCKING_1, reg | div);
1037 		break;
1038 	default:
1039 		return -EINVAL;
1040 	}
1041 
1042 	return 0;
1043 }
1044 
1045 /*
1046  * Set PCM DAI bit size and sample rate.
1047  */
1048 static int wm8991_hw_params(struct snd_pcm_substream *substream,
1049 			    struct snd_pcm_hw_params *params,
1050 			    struct snd_soc_dai *dai)
1051 {
1052 	struct snd_soc_component *component = dai->component;
1053 	u16 audio1 = snd_soc_component_read32(component, WM8991_AUDIO_INTERFACE_1);
1054 
1055 	audio1 &= ~WM8991_AIF_WL_MASK;
1056 	/* bit size */
1057 	switch (params_width(params)) {
1058 	case 16:
1059 		break;
1060 	case 20:
1061 		audio1 |= WM8991_AIF_WL_20BITS;
1062 		break;
1063 	case 24:
1064 		audio1 |= WM8991_AIF_WL_24BITS;
1065 		break;
1066 	case 32:
1067 		audio1 |= WM8991_AIF_WL_32BITS;
1068 		break;
1069 	}
1070 
1071 	snd_soc_component_write(component, WM8991_AUDIO_INTERFACE_1, audio1);
1072 	return 0;
1073 }
1074 
1075 static int wm8991_mute(struct snd_soc_dai *dai, int mute)
1076 {
1077 	struct snd_soc_component *component = dai->component;
1078 	u16 val;
1079 
1080 	val  = snd_soc_component_read32(component, WM8991_DAC_CTRL) & ~WM8991_DAC_MUTE;
1081 	if (mute)
1082 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1083 	else
1084 		snd_soc_component_write(component, WM8991_DAC_CTRL, val);
1085 	return 0;
1086 }
1087 
1088 static int wm8991_set_bias_level(struct snd_soc_component *component,
1089 				 enum snd_soc_bias_level level)
1090 {
1091 	struct wm8991_priv *wm8991 = snd_soc_component_get_drvdata(component);
1092 	u16 val;
1093 
1094 	switch (level) {
1095 	case SND_SOC_BIAS_ON:
1096 		break;
1097 
1098 	case SND_SOC_BIAS_PREPARE:
1099 		/* VMID=2*50k */
1100 		val = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_1) &
1101 		      ~WM8991_VMID_MODE_MASK;
1102 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x2);
1103 		break;
1104 
1105 	case SND_SOC_BIAS_STANDBY:
1106 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1107 			regcache_sync(wm8991->regmap);
1108 			/* Enable all output discharge bits */
1109 			snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1110 				      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1111 				      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1112 				      WM8991_DIS_ROUT);
1113 
1114 			/* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
1115 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1116 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1117 				      WM8991_VMIDTOG);
1118 
1119 			/* Delay to allow output caps to discharge */
1120 			msleep(300);
1121 
1122 			/* Disable VMIDTOG */
1123 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1124 				      WM8991_BUFDCOPEN | WM8991_POBCTRL);
1125 
1126 			/* disable all output discharge bits */
1127 			snd_soc_component_write(component, WM8991_ANTIPOP1, 0);
1128 
1129 			/* Enable outputs */
1130 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1b00);
1131 
1132 			msleep(50);
1133 
1134 			/* Enable VMID at 2x50k */
1135 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f02);
1136 
1137 			msleep(100);
1138 
1139 			/* Enable VREF */
1140 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1141 
1142 			msleep(600);
1143 
1144 			/* Enable BUFIOEN */
1145 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1146 				      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1147 				      WM8991_BUFIOEN);
1148 
1149 			/* Disable outputs */
1150 			snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x3);
1151 
1152 			/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1153 			snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_BUFIOEN);
1154 		}
1155 
1156 		/* VMID=2*250k */
1157 		val = snd_soc_component_read32(component, WM8991_POWER_MANAGEMENT_1) &
1158 		      ~WM8991_VMID_MODE_MASK;
1159 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, val | 0x4);
1160 		break;
1161 
1162 	case SND_SOC_BIAS_OFF:
1163 		/* Enable POBCTRL and SOFT_ST */
1164 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1165 			      WM8991_POBCTRL | WM8991_BUFIOEN);
1166 
1167 		/* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
1168 		snd_soc_component_write(component, WM8991_ANTIPOP2, WM8991_SOFTST |
1169 			      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1170 			      WM8991_BUFIOEN);
1171 
1172 		/* mute DAC */
1173 		val = snd_soc_component_read32(component, WM8991_DAC_CTRL);
1174 		snd_soc_component_write(component, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1175 
1176 		/* Enable any disabled outputs */
1177 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1178 
1179 		/* Disable VMID */
1180 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x1f01);
1181 
1182 		msleep(300);
1183 
1184 		/* Enable all output discharge bits */
1185 		snd_soc_component_write(component, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1186 			      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1187 			      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1188 			      WM8991_DIS_ROUT);
1189 
1190 		/* Disable VREF */
1191 		snd_soc_component_write(component, WM8991_POWER_MANAGEMENT_1, 0x0);
1192 
1193 		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1194 		snd_soc_component_write(component, WM8991_ANTIPOP2, 0x0);
1195 		regcache_mark_dirty(wm8991->regmap);
1196 		break;
1197 	}
1198 
1199 	return 0;
1200 }
1201 
1202 #define WM8991_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1203 			SNDRV_PCM_FMTBIT_S24_LE)
1204 
1205 static const struct snd_soc_dai_ops wm8991_ops = {
1206 	.hw_params = wm8991_hw_params,
1207 	.digital_mute = wm8991_mute,
1208 	.set_fmt = wm8991_set_dai_fmt,
1209 	.set_clkdiv = wm8991_set_dai_clkdiv,
1210 	.set_pll = wm8991_set_dai_pll
1211 };
1212 
1213 /*
1214  * The WM8991 supports 2 different and mutually exclusive DAI
1215  * configurations.
1216  *
1217  * 1. ADC/DAC on Primary Interface
1218  * 2. ADC on Primary Interface/DAC on secondary
1219  */
1220 static struct snd_soc_dai_driver wm8991_dai = {
1221 	/* ADC/DAC on primary */
1222 	.name = "wm8991",
1223 	.id = 1,
1224 	.playback = {
1225 		.stream_name = "Playback",
1226 		.channels_min = 1,
1227 		.channels_max = 2,
1228 		.rates = SNDRV_PCM_RATE_8000_96000,
1229 		.formats = WM8991_FORMATS
1230 	},
1231 	.capture = {
1232 		.stream_name = "Capture",
1233 		.channels_min = 1,
1234 		.channels_max = 2,
1235 		.rates = SNDRV_PCM_RATE_8000_96000,
1236 		.formats = WM8991_FORMATS
1237 	},
1238 	.ops = &wm8991_ops
1239 };
1240 
1241 static const struct snd_soc_component_driver soc_component_dev_wm8991 = {
1242 	.set_bias_level		= wm8991_set_bias_level,
1243 	.controls		= wm8991_snd_controls,
1244 	.num_controls		= ARRAY_SIZE(wm8991_snd_controls),
1245 	.dapm_widgets		= wm8991_dapm_widgets,
1246 	.num_dapm_widgets	= ARRAY_SIZE(wm8991_dapm_widgets),
1247 	.dapm_routes		= wm8991_dapm_routes,
1248 	.num_dapm_routes	= ARRAY_SIZE(wm8991_dapm_routes),
1249 	.suspend_bias_off	= 1,
1250 	.idle_bias_on		= 1,
1251 	.use_pmdown_time	= 1,
1252 	.endianness		= 1,
1253 	.non_legacy_dai_naming	= 1,
1254 };
1255 
1256 static const struct regmap_config wm8991_regmap = {
1257 	.reg_bits = 8,
1258 	.val_bits = 16,
1259 
1260 	.max_register = WM8991_PLL3,
1261 	.volatile_reg = wm8991_volatile,
1262 	.reg_defaults = wm8991_reg_defaults,
1263 	.num_reg_defaults = ARRAY_SIZE(wm8991_reg_defaults),
1264 	.cache_type = REGCACHE_RBTREE,
1265 };
1266 
1267 static int wm8991_i2c_probe(struct i2c_client *i2c,
1268 			    const struct i2c_device_id *id)
1269 {
1270 	struct wm8991_priv *wm8991;
1271 	unsigned int val;
1272 	int ret;
1273 
1274 	wm8991 = devm_kzalloc(&i2c->dev, sizeof(*wm8991), GFP_KERNEL);
1275 	if (!wm8991)
1276 		return -ENOMEM;
1277 
1278 	wm8991->regmap = devm_regmap_init_i2c(i2c, &wm8991_regmap);
1279 	if (IS_ERR(wm8991->regmap))
1280 		return PTR_ERR(wm8991->regmap);
1281 
1282 	i2c_set_clientdata(i2c, wm8991);
1283 
1284 	ret = regmap_read(wm8991->regmap, WM8991_RESET, &val);
1285 	if (ret != 0) {
1286 		dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);
1287 		return ret;
1288 	}
1289 	if (val != 0x8991) {
1290 		dev_err(&i2c->dev, "Device with ID %x is not a WM8991\n", val);
1291 		return -EINVAL;
1292 	}
1293 
1294 	ret = regmap_write(wm8991->regmap, WM8991_RESET, 0);
1295 	if (ret < 0) {
1296 		dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1297 		return ret;
1298 	}
1299 
1300 	regmap_update_bits(wm8991->regmap, WM8991_AUDIO_INTERFACE_4,
1301 			   WM8991_ALRCGPIO1, WM8991_ALRCGPIO1);
1302 
1303 	regmap_update_bits(wm8991->regmap, WM8991_GPIO1_GPIO2,
1304 			   WM8991_GPIO1_SEL_MASK, 1);
1305 
1306 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_1,
1307 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK,
1308 			   WM8991_VREF_ENA | WM8991_VMID_MODE_MASK);
1309 
1310 	regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_2,
1311 			   WM8991_OPCLK_ENA, WM8991_OPCLK_ENA);
1312 
1313 	regmap_write(wm8991->regmap, WM8991_DAC_CTRL, 0);
1314 	regmap_write(wm8991->regmap, WM8991_LEFT_OUTPUT_VOLUME,
1315 		     0x50 | (1<<8));
1316 	regmap_write(wm8991->regmap, WM8991_RIGHT_OUTPUT_VOLUME,
1317 		     0x50 | (1<<8));
1318 
1319 	ret = devm_snd_soc_register_component(&i2c->dev,
1320 				     &soc_component_dev_wm8991, &wm8991_dai, 1);
1321 
1322 	return ret;
1323 }
1324 
1325 static const struct i2c_device_id wm8991_i2c_id[] = {
1326 	{ "wm8991", 0 },
1327 	{ }
1328 };
1329 MODULE_DEVICE_TABLE(i2c, wm8991_i2c_id);
1330 
1331 static struct i2c_driver wm8991_i2c_driver = {
1332 	.driver = {
1333 		.name = "wm8991",
1334 	},
1335 	.probe = wm8991_i2c_probe,
1336 	.id_table = wm8991_i2c_id,
1337 };
1338 
1339 module_i2c_driver(wm8991_i2c_driver);
1340 
1341 MODULE_DESCRIPTION("ASoC WM8991 driver");
1342 MODULE_AUTHOR("Graeme Gregory");
1343 MODULE_LICENSE("GPL");
1344