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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/wm8996.c

Version: ~ [ linux-5.19-rc3 ] ~ [ linux-5.18.5 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.48 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.123 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.199 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.248 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.284 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.319 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * wm8996.c - WM8996 audio codec interface
  3  *
  4  * Copyright 2011-2 Wolfson Microelectronics PLC.
  5  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
  6  *
  7  *  This program is free software; you can redistribute  it and/or modify it
  8  *  under  the terms of  the GNU General  Public License as published by the
  9  *  Free Software Foundation;  either version 2 of the  License, or (at your
 10  *  option) any later version.
 11  */
 12 
 13 #include <linux/module.h>
 14 #include <linux/moduleparam.h>
 15 #include <linux/init.h>
 16 #include <linux/completion.h>
 17 #include <linux/delay.h>
 18 #include <linux/pm.h>
 19 #include <linux/gcd.h>
 20 #include <linux/gpio.h>
 21 #include <linux/i2c.h>
 22 #include <linux/regmap.h>
 23 #include <linux/regulator/consumer.h>
 24 #include <linux/slab.h>
 25 #include <linux/workqueue.h>
 26 #include <sound/core.h>
 27 #include <sound/jack.h>
 28 #include <sound/pcm.h>
 29 #include <sound/pcm_params.h>
 30 #include <sound/soc.h>
 31 #include <sound/initval.h>
 32 #include <sound/tlv.h>
 33 #include <trace/events/asoc.h>
 34 
 35 #include <sound/wm8996.h>
 36 #include "wm8996.h"
 37 
 38 #define WM8996_AIFS 2
 39 
 40 #define HPOUT1L 1
 41 #define HPOUT1R 2
 42 #define HPOUT2L 4
 43 #define HPOUT2R 8
 44 
 45 #define WM8996_NUM_SUPPLIES 3
 46 static const char *wm8996_supply_names[WM8996_NUM_SUPPLIES] = {
 47         "DBVDD",
 48         "AVDD1",
 49         "AVDD2",
 50 };
 51 
 52 struct wm8996_priv {
 53         struct device *dev;
 54         struct regmap *regmap;
 55         struct snd_soc_codec *codec;
 56 
 57         int ldo1ena;
 58 
 59         int sysclk;
 60         int sysclk_src;
 61 
 62         int fll_src;
 63         int fll_fref;
 64         int fll_fout;
 65 
 66         struct completion fll_lock;
 67 
 68         u16 dcs_pending;
 69         struct completion dcs_done;
 70 
 71         u16 hpout_ena;
 72         u16 hpout_pending;
 73 
 74         struct regulator_bulk_data supplies[WM8996_NUM_SUPPLIES];
 75         struct notifier_block disable_nb[WM8996_NUM_SUPPLIES];
 76         int bg_ena;
 77 
 78         struct wm8996_pdata pdata;
 79 
 80         int rx_rate[WM8996_AIFS];
 81         int bclk_rate[WM8996_AIFS];
 82 
 83         /* Platform dependant ReTune mobile configuration */
 84         int num_retune_mobile_texts;
 85         const char **retune_mobile_texts;
 86         int retune_mobile_cfg[2];
 87         struct soc_enum retune_mobile_enum;
 88 
 89         struct snd_soc_jack *jack;
 90         bool detecting;
 91         bool jack_mic;
 92         int jack_flips;
 93         wm8996_polarity_fn polarity_cb;
 94 
 95 #ifdef CONFIG_GPIOLIB
 96         struct gpio_chip gpio_chip;
 97 #endif
 98 };
 99 
100 /* We can't use the same notifier block for more than one supply and
101  * there's no way I can see to get from a callback to the caller
102  * except container_of().
103  */
104 #define WM8996_REGULATOR_EVENT(n) \
105 static int wm8996_regulator_event_##n(struct notifier_block *nb, \
106                                     unsigned long event, void *data)    \
107 { \
108         struct wm8996_priv *wm8996 = container_of(nb, struct wm8996_priv, \
109                                                   disable_nb[n]); \
110         if (event & REGULATOR_EVENT_DISABLE) { \
111                 regcache_mark_dirty(wm8996->regmap);    \
112         } \
113         return 0; \
114 }
115 
116 WM8996_REGULATOR_EVENT(0)
117 WM8996_REGULATOR_EVENT(1)
118 WM8996_REGULATOR_EVENT(2)
119 
120 static const struct reg_default wm8996_reg[] = {
121         { WM8996_POWER_MANAGEMENT_1, 0x0 },
122         { WM8996_POWER_MANAGEMENT_2, 0x0 },
123         { WM8996_POWER_MANAGEMENT_3, 0x0 },
124         { WM8996_POWER_MANAGEMENT_4, 0x0 },
125         { WM8996_POWER_MANAGEMENT_5, 0x0 },
126         { WM8996_POWER_MANAGEMENT_6, 0x0 },
127         { WM8996_POWER_MANAGEMENT_7, 0x10 },
128         { WM8996_POWER_MANAGEMENT_8, 0x0 },
129         { WM8996_LEFT_LINE_INPUT_VOLUME, 0x0 },
130         { WM8996_RIGHT_LINE_INPUT_VOLUME, 0x0 },
131         { WM8996_LINE_INPUT_CONTROL, 0x0 },
132         { WM8996_DAC1_HPOUT1_VOLUME, 0x88 },
133         { WM8996_DAC2_HPOUT2_VOLUME, 0x88 },
134         { WM8996_DAC1_LEFT_VOLUME, 0x2c0 },
135         { WM8996_DAC1_RIGHT_VOLUME, 0x2c0 },
136         { WM8996_DAC2_LEFT_VOLUME, 0x2c0 },
137         { WM8996_DAC2_RIGHT_VOLUME, 0x2c0 },
138         { WM8996_OUTPUT1_LEFT_VOLUME, 0x80 },
139         { WM8996_OUTPUT1_RIGHT_VOLUME, 0x80 },
140         { WM8996_OUTPUT2_LEFT_VOLUME, 0x80 },
141         { WM8996_OUTPUT2_RIGHT_VOLUME, 0x80 },
142         { WM8996_MICBIAS_1, 0x39 },
143         { WM8996_MICBIAS_2, 0x39 },
144         { WM8996_LDO_1, 0x3 },
145         { WM8996_LDO_2, 0x13 },
146         { WM8996_ACCESSORY_DETECT_MODE_1, 0x4 },
147         { WM8996_ACCESSORY_DETECT_MODE_2, 0x0 },
148         { WM8996_HEADPHONE_DETECT_1, 0x20 },
149         { WM8996_HEADPHONE_DETECT_2, 0x0 },
150         { WM8996_MIC_DETECT_1, 0x7600 },
151         { WM8996_MIC_DETECT_2, 0xbf },
152         { WM8996_CHARGE_PUMP_1, 0x1f25 },
153         { WM8996_CHARGE_PUMP_2, 0xab19 },
154         { WM8996_DC_SERVO_1, 0x0 },
155         { WM8996_DC_SERVO_3, 0x0 },
156         { WM8996_DC_SERVO_5, 0x2a2a },
157         { WM8996_DC_SERVO_6, 0x0 },
158         { WM8996_DC_SERVO_7, 0x0 },
159         { WM8996_ANALOGUE_HP_1, 0x0 },
160         { WM8996_ANALOGUE_HP_2, 0x0 },
161         { WM8996_CONTROL_INTERFACE_1, 0x8004 },
162         { WM8996_WRITE_SEQUENCER_CTRL_1, 0x0 },
163         { WM8996_WRITE_SEQUENCER_CTRL_2, 0x0 },
164         { WM8996_AIF_CLOCKING_1, 0x0 },
165         { WM8996_AIF_CLOCKING_2, 0x0 },
166         { WM8996_CLOCKING_1, 0x10 },
167         { WM8996_CLOCKING_2, 0x0 },
168         { WM8996_AIF_RATE, 0x83 },
169         { WM8996_FLL_CONTROL_1, 0x0 },
170         { WM8996_FLL_CONTROL_2, 0x0 },
171         { WM8996_FLL_CONTROL_3, 0x0 },
172         { WM8996_FLL_CONTROL_4, 0x5dc0 },
173         { WM8996_FLL_CONTROL_5, 0xc84 },
174         { WM8996_FLL_EFS_1, 0x0 },
175         { WM8996_FLL_EFS_2, 0x2 },
176         { WM8996_AIF1_CONTROL, 0x0 },
177         { WM8996_AIF1_BCLK, 0x0 },
178         { WM8996_AIF1_TX_LRCLK_1, 0x80 },
179         { WM8996_AIF1_TX_LRCLK_2, 0x8 },
180         { WM8996_AIF1_RX_LRCLK_1, 0x80 },
181         { WM8996_AIF1_RX_LRCLK_2, 0x0 },
182         { WM8996_AIF1TX_DATA_CONFIGURATION_1, 0x1818 },
183         { WM8996_AIF1TX_DATA_CONFIGURATION_2, 0 },
184         { WM8996_AIF1RX_DATA_CONFIGURATION, 0x1818 },
185         { WM8996_AIF1TX_CHANNEL_0_CONFIGURATION, 0x0 },
186         { WM8996_AIF1TX_CHANNEL_1_CONFIGURATION, 0x0 },
187         { WM8996_AIF1TX_CHANNEL_2_CONFIGURATION, 0x0 },
188         { WM8996_AIF1TX_CHANNEL_3_CONFIGURATION, 0x0 },
189         { WM8996_AIF1TX_CHANNEL_4_CONFIGURATION, 0x0 },
190         { WM8996_AIF1TX_CHANNEL_5_CONFIGURATION, 0x0 },
191         { WM8996_AIF1RX_CHANNEL_0_CONFIGURATION, 0x0 },
192         { WM8996_AIF1RX_CHANNEL_1_CONFIGURATION, 0x0 },
193         { WM8996_AIF1RX_CHANNEL_2_CONFIGURATION, 0x0 },
194         { WM8996_AIF1RX_CHANNEL_3_CONFIGURATION, 0x0 },
195         { WM8996_AIF1RX_CHANNEL_4_CONFIGURATION, 0x0 },
196         { WM8996_AIF1RX_CHANNEL_5_CONFIGURATION, 0x0 },
197         { WM8996_AIF1RX_MONO_CONFIGURATION, 0x0 },
198         { WM8996_AIF1TX_TEST, 0x7 },
199         { WM8996_AIF2_CONTROL, 0x0 },
200         { WM8996_AIF2_BCLK, 0x0 },
201         { WM8996_AIF2_TX_LRCLK_1, 0x80 },
202         { WM8996_AIF2_TX_LRCLK_2, 0x8 },
203         { WM8996_AIF2_RX_LRCLK_1, 0x80 },
204         { WM8996_AIF2_RX_LRCLK_2, 0x0 },
205         { WM8996_AIF2TX_DATA_CONFIGURATION_1, 0x1818 },
206         { WM8996_AIF2RX_DATA_CONFIGURATION, 0x1818 },
207         { WM8996_AIF2RX_DATA_CONFIGURATION, 0x0 },
208         { WM8996_AIF2TX_CHANNEL_0_CONFIGURATION, 0x0 },
209         { WM8996_AIF2TX_CHANNEL_1_CONFIGURATION, 0x0 },
210         { WM8996_AIF2RX_CHANNEL_0_CONFIGURATION, 0x0 },
211         { WM8996_AIF2RX_CHANNEL_1_CONFIGURATION, 0x0 },
212         { WM8996_AIF2RX_MONO_CONFIGURATION, 0x0 },
213         { WM8996_AIF2TX_TEST, 0x1 },
214         { WM8996_DSP1_TX_LEFT_VOLUME, 0xc0 },
215         { WM8996_DSP1_TX_RIGHT_VOLUME, 0xc0 },
216         { WM8996_DSP1_RX_LEFT_VOLUME, 0xc0 },
217         { WM8996_DSP1_RX_RIGHT_VOLUME, 0xc0 },
218         { WM8996_DSP1_TX_FILTERS, 0x2000 },
219         { WM8996_DSP1_RX_FILTERS_1, 0x200 },
220         { WM8996_DSP1_RX_FILTERS_2, 0x10 },
221         { WM8996_DSP1_DRC_1, 0x98 },
222         { WM8996_DSP1_DRC_2, 0x845 },
223         { WM8996_DSP1_RX_EQ_GAINS_1, 0x6318 },
224         { WM8996_DSP1_RX_EQ_GAINS_2, 0x6300 },
225         { WM8996_DSP1_RX_EQ_BAND_1_A, 0xfca },
226         { WM8996_DSP1_RX_EQ_BAND_1_B, 0x400 },
227         { WM8996_DSP1_RX_EQ_BAND_1_PG, 0xd8 },
228         { WM8996_DSP1_RX_EQ_BAND_2_A, 0x1eb5 },
229         { WM8996_DSP1_RX_EQ_BAND_2_B, 0xf145 },
230         { WM8996_DSP1_RX_EQ_BAND_2_C, 0xb75 },
231         { WM8996_DSP1_RX_EQ_BAND_2_PG, 0x1c5 },
232         { WM8996_DSP1_RX_EQ_BAND_3_A, 0x1c58 },
233         { WM8996_DSP1_RX_EQ_BAND_3_B, 0xf373 },
234         { WM8996_DSP1_RX_EQ_BAND_3_C, 0xa54 },
235         { WM8996_DSP1_RX_EQ_BAND_3_PG, 0x558 },
236         { WM8996_DSP1_RX_EQ_BAND_4_A, 0x168e },
237         { WM8996_DSP1_RX_EQ_BAND_4_B, 0xf829 },
238         { WM8996_DSP1_RX_EQ_BAND_4_C, 0x7ad },
239         { WM8996_DSP1_RX_EQ_BAND_4_PG, 0x1103 },
240         { WM8996_DSP1_RX_EQ_BAND_5_A, 0x564 },
241         { WM8996_DSP1_RX_EQ_BAND_5_B, 0x559 },
242         { WM8996_DSP1_RX_EQ_BAND_5_PG, 0x4000 },
243         { WM8996_DSP2_TX_LEFT_VOLUME, 0xc0 },
244         { WM8996_DSP2_TX_RIGHT_VOLUME, 0xc0 },
245         { WM8996_DSP2_RX_LEFT_VOLUME, 0xc0 },
246         { WM8996_DSP2_RX_RIGHT_VOLUME, 0xc0 },
247         { WM8996_DSP2_TX_FILTERS, 0x2000 },
248         { WM8996_DSP2_RX_FILTERS_1, 0x200 },
249         { WM8996_DSP2_RX_FILTERS_2, 0x10 },
250         { WM8996_DSP2_DRC_1, 0x98 },
251         { WM8996_DSP2_DRC_2, 0x845 },
252         { WM8996_DSP2_RX_EQ_GAINS_1, 0x6318 },
253         { WM8996_DSP2_RX_EQ_GAINS_2, 0x6300 },
254         { WM8996_DSP2_RX_EQ_BAND_1_A, 0xfca },
255         { WM8996_DSP2_RX_EQ_BAND_1_B, 0x400 },
256         { WM8996_DSP2_RX_EQ_BAND_1_PG, 0xd8 },
257         { WM8996_DSP2_RX_EQ_BAND_2_A, 0x1eb5 },
258         { WM8996_DSP2_RX_EQ_BAND_2_B, 0xf145 },
259         { WM8996_DSP2_RX_EQ_BAND_2_C, 0xb75 },
260         { WM8996_DSP2_RX_EQ_BAND_2_PG, 0x1c5 },
261         { WM8996_DSP2_RX_EQ_BAND_3_A, 0x1c58 },
262         { WM8996_DSP2_RX_EQ_BAND_3_B, 0xf373 },
263         { WM8996_DSP2_RX_EQ_BAND_3_C, 0xa54 },
264         { WM8996_DSP2_RX_EQ_BAND_3_PG, 0x558 },
265         { WM8996_DSP2_RX_EQ_BAND_4_A, 0x168e },
266         { WM8996_DSP2_RX_EQ_BAND_4_B, 0xf829 },
267         { WM8996_DSP2_RX_EQ_BAND_4_C, 0x7ad },
268         { WM8996_DSP2_RX_EQ_BAND_4_PG, 0x1103 },
269         { WM8996_DSP2_RX_EQ_BAND_5_A, 0x564 },
270         { WM8996_DSP2_RX_EQ_BAND_5_B, 0x559 },
271         { WM8996_DSP2_RX_EQ_BAND_5_PG, 0x4000 },
272         { WM8996_DAC1_MIXER_VOLUMES, 0x0 },
273         { WM8996_DAC1_LEFT_MIXER_ROUTING, 0x0 },
274         { WM8996_DAC1_RIGHT_MIXER_ROUTING, 0x0 },
275         { WM8996_DAC2_MIXER_VOLUMES, 0x0 },
276         { WM8996_DAC2_LEFT_MIXER_ROUTING, 0x0 },
277         { WM8996_DAC2_RIGHT_MIXER_ROUTING, 0x0 },
278         { WM8996_DSP1_TX_LEFT_MIXER_ROUTING, 0x0 },
279         { WM8996_DSP1_TX_RIGHT_MIXER_ROUTING, 0x0 },
280         { WM8996_DSP2_TX_LEFT_MIXER_ROUTING, 0x0 },
281         { WM8996_DSP2_TX_RIGHT_MIXER_ROUTING, 0x0 },
282         { WM8996_DSP_TX_MIXER_SELECT, 0x0 },
283         { WM8996_DAC_SOFTMUTE, 0x0 },
284         { WM8996_OVERSAMPLING, 0xd },
285         { WM8996_SIDETONE, 0x1040 },
286         { WM8996_GPIO_1, 0xa101 },
287         { WM8996_GPIO_2, 0xa101 },
288         { WM8996_GPIO_3, 0xa101 },
289         { WM8996_GPIO_4, 0xa101 },
290         { WM8996_GPIO_5, 0xa101 },
291         { WM8996_PULL_CONTROL_1, 0x0 },
292         { WM8996_PULL_CONTROL_2, 0x140 },
293         { WM8996_INTERRUPT_STATUS_1_MASK, 0x1f },
294         { WM8996_INTERRUPT_STATUS_2_MASK, 0x1ecf },
295         { WM8996_LEFT_PDM_SPEAKER, 0x0 },
296         { WM8996_RIGHT_PDM_SPEAKER, 0x1 },
297         { WM8996_PDM_SPEAKER_MUTE_SEQUENCE, 0x69 },
298         { WM8996_PDM_SPEAKER_VOLUME, 0x66 },
299 };
300 
301 static const DECLARE_TLV_DB_SCALE(inpga_tlv, 0, 100, 0);
302 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
303 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
304 static const DECLARE_TLV_DB_SCALE(out_digital_tlv, -1200, 150, 0);
305 static const DECLARE_TLV_DB_SCALE(out_tlv, -900, 75, 0);
306 static const DECLARE_TLV_DB_SCALE(spk_tlv, -900, 150, 0);
307 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
308 static const DECLARE_TLV_DB_SCALE(threedstereo_tlv, -1600, 183, 1);
309 
310 static const char *sidetone_hpf_text[] = {
311         "2.9kHz", "1.5kHz", "735Hz", "403Hz", "196Hz", "98Hz", "49Hz"
312 };
313 
314 static SOC_ENUM_SINGLE_DECL(sidetone_hpf,
315                             WM8996_SIDETONE, 7, sidetone_hpf_text);
316 
317 static const char *hpf_mode_text[] = {
318         "HiFi", "Custom", "Voice"
319 };
320 
321 static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_mode,
322                             WM8996_DSP1_TX_FILTERS, 3, hpf_mode_text);
323 
324 static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_mode,
325                             WM8996_DSP2_TX_FILTERS, 3, hpf_mode_text);
326 
327 static const char *hpf_cutoff_text[] = {
328         "50Hz", "75Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
329 };
330 
331 static SOC_ENUM_SINGLE_DECL(dsp1tx_hpf_cutoff,
332                             WM8996_DSP1_TX_FILTERS, 0, hpf_cutoff_text);
333 
334 static SOC_ENUM_SINGLE_DECL(dsp2tx_hpf_cutoff,
335                             WM8996_DSP2_TX_FILTERS, 0, hpf_cutoff_text);
336 
337 static void wm8996_set_retune_mobile(struct snd_soc_codec *codec, int block)
338 {
339         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
340         struct wm8996_pdata *pdata = &wm8996->pdata;
341         int base, best, best_val, save, i, cfg, iface;
342 
343         if (!wm8996->num_retune_mobile_texts)
344                 return;
345 
346         switch (block) {
347         case 0:
348                 base = WM8996_DSP1_RX_EQ_GAINS_1;
349                 if (snd_soc_read(codec, WM8996_POWER_MANAGEMENT_8) &
350                     WM8996_DSP1RX_SRC)
351                         iface = 1;
352                 else
353                         iface = 0;
354                 break;
355         case 1:
356                 base = WM8996_DSP1_RX_EQ_GAINS_2;
357                 if (snd_soc_read(codec, WM8996_POWER_MANAGEMENT_8) &
358                     WM8996_DSP2RX_SRC)
359                         iface = 1;
360                 else
361                         iface = 0;
362                 break;
363         default:
364                 return;
365         }
366 
367         /* Find the version of the currently selected configuration
368          * with the nearest sample rate. */
369         cfg = wm8996->retune_mobile_cfg[block];
370         best = 0;
371         best_val = INT_MAX;
372         for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
373                 if (strcmp(pdata->retune_mobile_cfgs[i].name,
374                            wm8996->retune_mobile_texts[cfg]) == 0 &&
375                     abs(pdata->retune_mobile_cfgs[i].rate
376                         - wm8996->rx_rate[iface]) < best_val) {
377                         best = i;
378                         best_val = abs(pdata->retune_mobile_cfgs[i].rate
379                                        - wm8996->rx_rate[iface]);
380                 }
381         }
382 
383         dev_dbg(codec->dev, "ReTune Mobile %d %s/%dHz for %dHz sample rate\n",
384                 block,
385                 pdata->retune_mobile_cfgs[best].name,
386                 pdata->retune_mobile_cfgs[best].rate,
387                 wm8996->rx_rate[iface]);
388 
389         /* The EQ will be disabled while reconfiguring it, remember the
390          * current configuration. 
391          */
392         save = snd_soc_read(codec, base);
393         save &= WM8996_DSP1RX_EQ_ENA;
394 
395         for (i = 0; i < ARRAY_SIZE(pdata->retune_mobile_cfgs[best].regs); i++)
396                 snd_soc_update_bits(codec, base + i, 0xffff,
397                                     pdata->retune_mobile_cfgs[best].regs[i]);
398 
399         snd_soc_update_bits(codec, base, WM8996_DSP1RX_EQ_ENA, save);
400 }
401 
402 /* Icky as hell but saves code duplication */
403 static int wm8996_get_retune_mobile_block(const char *name)
404 {
405         if (strcmp(name, "DSP1 EQ Mode") == 0)
406                 return 0;
407         if (strcmp(name, "DSP2 EQ Mode") == 0)
408                 return 1;
409         return -EINVAL;
410 }
411 
412 static int wm8996_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
413                                          struct snd_ctl_elem_value *ucontrol)
414 {
415         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
416         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
417         struct wm8996_pdata *pdata = &wm8996->pdata;
418         int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
419         int value = ucontrol->value.integer.value[0];
420 
421         if (block < 0)
422                 return block;
423 
424         if (value >= pdata->num_retune_mobile_cfgs)
425                 return -EINVAL;
426 
427         wm8996->retune_mobile_cfg[block] = value;
428 
429         wm8996_set_retune_mobile(codec, block);
430 
431         return 0;
432 }
433 
434 static int wm8996_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
435                                          struct snd_ctl_elem_value *ucontrol)
436 {
437         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
438         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
439         int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
440 
441         if (block < 0)
442                 return block;
443         ucontrol->value.enumerated.item[0] = wm8996->retune_mobile_cfg[block];
444 
445         return 0;
446 }
447 
448 static const struct snd_kcontrol_new wm8996_snd_controls[] = {
449 SOC_DOUBLE_R_TLV("Capture Volume", WM8996_LEFT_LINE_INPUT_VOLUME,
450                  WM8996_RIGHT_LINE_INPUT_VOLUME, 0, 31, 0, inpga_tlv),
451 SOC_DOUBLE_R("Capture ZC Switch", WM8996_LEFT_LINE_INPUT_VOLUME,
452              WM8996_RIGHT_LINE_INPUT_VOLUME, 5, 1, 0),
453 
454 SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8996_DAC1_MIXER_VOLUMES,
455                0, 5, 24, 0, sidetone_tlv),
456 SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8996_DAC2_MIXER_VOLUMES,
457                0, 5, 24, 0, sidetone_tlv),
458 SOC_SINGLE("Sidetone LPF Switch", WM8996_SIDETONE, 12, 1, 0),
459 SOC_ENUM("Sidetone HPF Cut-off", sidetone_hpf),
460 SOC_SINGLE("Sidetone HPF Switch", WM8996_SIDETONE, 6, 1, 0),
461 
462 SOC_DOUBLE_R_TLV("DSP1 Capture Volume", WM8996_DSP1_TX_LEFT_VOLUME,
463                  WM8996_DSP1_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
464 SOC_DOUBLE_R_TLV("DSP2 Capture Volume", WM8996_DSP2_TX_LEFT_VOLUME,
465                  WM8996_DSP2_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
466 
467 SOC_SINGLE("DSP1 Capture Notch Filter Switch", WM8996_DSP1_TX_FILTERS,
468            13, 1, 0),
469 SOC_DOUBLE("DSP1 Capture HPF Switch", WM8996_DSP1_TX_FILTERS, 12, 11, 1, 0),
470 SOC_ENUM("DSP1 Capture HPF Mode", dsp1tx_hpf_mode),
471 SOC_ENUM("DSP1 Capture HPF Cutoff", dsp1tx_hpf_cutoff),
472 
473 SOC_SINGLE("DSP2 Capture Notch Filter Switch", WM8996_DSP2_TX_FILTERS,
474            13, 1, 0),
475 SOC_DOUBLE("DSP2 Capture HPF Switch", WM8996_DSP2_TX_FILTERS, 12, 11, 1, 0),
476 SOC_ENUM("DSP2 Capture HPF Mode", dsp2tx_hpf_mode),
477 SOC_ENUM("DSP2 Capture HPF Cutoff", dsp2tx_hpf_cutoff),
478 
479 SOC_DOUBLE_R_TLV("DSP1 Playback Volume", WM8996_DSP1_RX_LEFT_VOLUME,
480                  WM8996_DSP1_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
481 SOC_SINGLE("DSP1 Playback Switch", WM8996_DSP1_RX_FILTERS_1, 9, 1, 1),
482 
483 SOC_DOUBLE_R_TLV("DSP2 Playback Volume", WM8996_DSP2_RX_LEFT_VOLUME,
484                  WM8996_DSP2_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
485 SOC_SINGLE("DSP2 Playback Switch", WM8996_DSP2_RX_FILTERS_1, 9, 1, 1),
486 
487 SOC_DOUBLE_R_TLV("DAC1 Volume", WM8996_DAC1_LEFT_VOLUME,
488                  WM8996_DAC1_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
489 SOC_DOUBLE_R("DAC1 Switch", WM8996_DAC1_LEFT_VOLUME,
490              WM8996_DAC1_RIGHT_VOLUME, 9, 1, 1),
491 
492 SOC_DOUBLE_R_TLV("DAC2 Volume", WM8996_DAC2_LEFT_VOLUME,
493                  WM8996_DAC2_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
494 SOC_DOUBLE_R("DAC2 Switch", WM8996_DAC2_LEFT_VOLUME,
495              WM8996_DAC2_RIGHT_VOLUME, 9, 1, 1),
496 
497 SOC_SINGLE("Speaker High Performance Switch", WM8996_OVERSAMPLING, 3, 1, 0),
498 SOC_SINGLE("DMIC High Performance Switch", WM8996_OVERSAMPLING, 2, 1, 0),
499 SOC_SINGLE("ADC High Performance Switch", WM8996_OVERSAMPLING, 1, 1, 0),
500 SOC_SINGLE("DAC High Performance Switch", WM8996_OVERSAMPLING, 0, 1, 0),
501 
502 SOC_SINGLE("DAC Soft Mute Switch", WM8996_DAC_SOFTMUTE, 1, 1, 0),
503 SOC_SINGLE("DAC Slow Soft Mute Switch", WM8996_DAC_SOFTMUTE, 0, 1, 0),
504 
505 SOC_SINGLE("DSP1 3D Stereo Switch", WM8996_DSP1_RX_FILTERS_2, 8, 1, 0),
506 SOC_SINGLE("DSP2 3D Stereo Switch", WM8996_DSP2_RX_FILTERS_2, 8, 1, 0),
507 
508 SOC_SINGLE_TLV("DSP1 3D Stereo Volume", WM8996_DSP1_RX_FILTERS_2, 10, 15,
509                 0, threedstereo_tlv),
510 SOC_SINGLE_TLV("DSP2 3D Stereo Volume", WM8996_DSP2_RX_FILTERS_2, 10, 15,
511                 0, threedstereo_tlv),
512 
513 SOC_DOUBLE_TLV("Digital Output 1 Volume", WM8996_DAC1_HPOUT1_VOLUME, 0, 4,
514                8, 0, out_digital_tlv),
515 SOC_DOUBLE_TLV("Digital Output 2 Volume", WM8996_DAC2_HPOUT2_VOLUME, 0, 4,
516                8, 0, out_digital_tlv),
517 
518 SOC_DOUBLE_R_TLV("Output 1 Volume", WM8996_OUTPUT1_LEFT_VOLUME,
519                  WM8996_OUTPUT1_RIGHT_VOLUME, 0, 12, 0, out_tlv),
520 SOC_DOUBLE_R("Output 1 ZC Switch",  WM8996_OUTPUT1_LEFT_VOLUME,
521              WM8996_OUTPUT1_RIGHT_VOLUME, 7, 1, 0),
522 
523 SOC_DOUBLE_R_TLV("Output 2 Volume", WM8996_OUTPUT2_LEFT_VOLUME,
524                  WM8996_OUTPUT2_RIGHT_VOLUME, 0, 12, 0, out_tlv),
525 SOC_DOUBLE_R("Output 2 ZC Switch",  WM8996_OUTPUT2_LEFT_VOLUME,
526              WM8996_OUTPUT2_RIGHT_VOLUME, 7, 1, 0),
527 
528 SOC_DOUBLE_TLV("Speaker Volume", WM8996_PDM_SPEAKER_VOLUME, 0, 4, 8, 0,
529                spk_tlv),
530 SOC_DOUBLE_R("Speaker Switch", WM8996_LEFT_PDM_SPEAKER,
531              WM8996_RIGHT_PDM_SPEAKER, 3, 1, 1),
532 SOC_DOUBLE_R("Speaker ZC Switch", WM8996_LEFT_PDM_SPEAKER,
533              WM8996_RIGHT_PDM_SPEAKER, 2, 1, 0),
534 
535 SOC_SINGLE("DSP1 EQ Switch", WM8996_DSP1_RX_EQ_GAINS_1, 0, 1, 0),
536 SOC_SINGLE("DSP2 EQ Switch", WM8996_DSP2_RX_EQ_GAINS_1, 0, 1, 0),
537 
538 SOC_SINGLE("DSP1 DRC TXL Switch", WM8996_DSP1_DRC_1, 0, 1, 0),
539 SOC_SINGLE("DSP1 DRC TXR Switch", WM8996_DSP1_DRC_1, 1, 1, 0),
540 SOC_SINGLE("DSP1 DRC RX Switch", WM8996_DSP1_DRC_1, 2, 1, 0),
541 SND_SOC_BYTES_MASK("DSP1 DRC", WM8996_DSP1_DRC_1, 5,
542                    WM8996_DSP1RX_DRC_ENA | WM8996_DSP1TXL_DRC_ENA |
543                    WM8996_DSP1TXR_DRC_ENA),
544 
545 SOC_SINGLE("DSP2 DRC TXL Switch", WM8996_DSP2_DRC_1, 0, 1, 0),
546 SOC_SINGLE("DSP2 DRC TXR Switch", WM8996_DSP2_DRC_1, 1, 1, 0),
547 SOC_SINGLE("DSP2 DRC RX Switch", WM8996_DSP2_DRC_1, 2, 1, 0),
548 SND_SOC_BYTES_MASK("DSP2 DRC", WM8996_DSP2_DRC_1, 5,
549                    WM8996_DSP2RX_DRC_ENA | WM8996_DSP2TXL_DRC_ENA |
550                    WM8996_DSP2TXR_DRC_ENA),
551 };
552 
553 static const struct snd_kcontrol_new wm8996_eq_controls[] = {
554 SOC_SINGLE_TLV("DSP1 EQ B1 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 11, 31, 0,
555                eq_tlv),
556 SOC_SINGLE_TLV("DSP1 EQ B2 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 6, 31, 0,
557                eq_tlv),
558 SOC_SINGLE_TLV("DSP1 EQ B3 Volume", WM8996_DSP1_RX_EQ_GAINS_1, 1, 31, 0,
559                eq_tlv),
560 SOC_SINGLE_TLV("DSP1 EQ B4 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 11, 31, 0,
561                eq_tlv),
562 SOC_SINGLE_TLV("DSP1 EQ B5 Volume", WM8996_DSP1_RX_EQ_GAINS_2, 6, 31, 0,
563                eq_tlv),
564 
565 SOC_SINGLE_TLV("DSP2 EQ B1 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 11, 31, 0,
566                eq_tlv),
567 SOC_SINGLE_TLV("DSP2 EQ B2 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 6, 31, 0,
568                eq_tlv),
569 SOC_SINGLE_TLV("DSP2 EQ B3 Volume", WM8996_DSP2_RX_EQ_GAINS_1, 1, 31, 0,
570                eq_tlv),
571 SOC_SINGLE_TLV("DSP2 EQ B4 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 11, 31, 0,
572                eq_tlv),
573 SOC_SINGLE_TLV("DSP2 EQ B5 Volume", WM8996_DSP2_RX_EQ_GAINS_2, 6, 31, 0,
574                eq_tlv),
575 };
576 
577 static void wm8996_bg_enable(struct snd_soc_codec *codec)
578 {
579         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
580 
581         wm8996->bg_ena++;
582         if (wm8996->bg_ena == 1) {
583                 snd_soc_update_bits(codec, WM8996_POWER_MANAGEMENT_1,
584                                     WM8996_BG_ENA, WM8996_BG_ENA);
585                 msleep(2);
586         }
587 }
588 
589 static void wm8996_bg_disable(struct snd_soc_codec *codec)
590 {
591         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
592 
593         wm8996->bg_ena--;
594         if (!wm8996->bg_ena)
595                 snd_soc_update_bits(codec, WM8996_POWER_MANAGEMENT_1,
596                                     WM8996_BG_ENA, 0);
597 }
598 
599 static int bg_event(struct snd_soc_dapm_widget *w,
600                     struct snd_kcontrol *kcontrol, int event)
601 {
602         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
603         int ret = 0;
604 
605         switch (event) {
606         case SND_SOC_DAPM_PRE_PMU:
607                 wm8996_bg_enable(codec);
608                 break;
609         case SND_SOC_DAPM_POST_PMD:
610                 wm8996_bg_disable(codec);
611                 break;
612         default:
613                 WARN(1, "Invalid event %d\n", event);
614                 ret = -EINVAL;
615         }
616 
617         return ret;
618 }
619 
620 static int cp_event(struct snd_soc_dapm_widget *w,
621                     struct snd_kcontrol *kcontrol, int event)
622 {
623         switch (event) {
624         case SND_SOC_DAPM_POST_PMU:
625                 msleep(5);
626                 break;
627         default:
628                 WARN(1, "Invalid event %d\n", event);
629         }
630 
631         return 0;
632 }
633 
634 static int rmv_short_event(struct snd_soc_dapm_widget *w,
635                            struct snd_kcontrol *kcontrol, int event)
636 {
637         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
638         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
639 
640         /* Record which outputs we enabled */
641         switch (event) {
642         case SND_SOC_DAPM_PRE_PMD:
643                 wm8996->hpout_pending &= ~w->shift;
644                 break;
645         case SND_SOC_DAPM_PRE_PMU:
646                 wm8996->hpout_pending |= w->shift;
647                 break;
648         default:
649                 WARN(1, "Invalid event %d\n", event);
650                 return -EINVAL;
651         }
652 
653         return 0;
654 }
655 
656 static void wait_for_dc_servo(struct snd_soc_codec *codec, u16 mask)
657 {
658         struct i2c_client *i2c = to_i2c_client(codec->dev);
659         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
660         int ret;
661         unsigned long timeout = 200;
662 
663         snd_soc_write(codec, WM8996_DC_SERVO_2, mask);
664 
665         /* Use the interrupt if possible */
666         do {
667                 if (i2c->irq) {
668                         timeout = wait_for_completion_timeout(&wm8996->dcs_done,
669                                                               msecs_to_jiffies(200));
670                         if (timeout == 0)
671                                 dev_err(codec->dev, "DC servo timed out\n");
672 
673                 } else {
674                         msleep(1);
675                         timeout--;
676                 }
677 
678                 ret = snd_soc_read(codec, WM8996_DC_SERVO_2);
679                 dev_dbg(codec->dev, "DC servo state: %x\n", ret);
680         } while (timeout && ret & mask);
681 
682         if (timeout == 0)
683                 dev_err(codec->dev, "DC servo timed out for %x\n", mask);
684         else
685                 dev_dbg(codec->dev, "DC servo complete for %x\n", mask);
686 }
687 
688 static void wm8996_seq_notifier(struct snd_soc_dapm_context *dapm,
689                                 enum snd_soc_dapm_type event, int subseq)
690 {
691         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
692         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
693         u16 val, mask;
694 
695         /* Complete any pending DC servo starts */
696         if (wm8996->dcs_pending) {
697                 dev_dbg(codec->dev, "Starting DC servo for %x\n",
698                         wm8996->dcs_pending);
699 
700                 /* Trigger a startup sequence */
701                 wait_for_dc_servo(codec, wm8996->dcs_pending
702                                          << WM8996_DCS_TRIG_STARTUP_0_SHIFT);
703 
704                 wm8996->dcs_pending = 0;
705         }
706 
707         if (wm8996->hpout_pending != wm8996->hpout_ena) {
708                 dev_dbg(codec->dev, "Applying RMV_SHORTs %x->%x\n",
709                         wm8996->hpout_ena, wm8996->hpout_pending);
710 
711                 val = 0;
712                 mask = 0;
713                 if (wm8996->hpout_pending & HPOUT1L) {
714                         val |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP;
715                         mask |= WM8996_HPOUT1L_RMV_SHORT | WM8996_HPOUT1L_OUTP;
716                 } else {
717                         mask |= WM8996_HPOUT1L_RMV_SHORT |
718                                 WM8996_HPOUT1L_OUTP |
719                                 WM8996_HPOUT1L_DLY;
720                 }
721 
722                 if (wm8996->hpout_pending & HPOUT1R) {
723                         val |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP;
724                         mask |= WM8996_HPOUT1R_RMV_SHORT | WM8996_HPOUT1R_OUTP;
725                 } else {
726                         mask |= WM8996_HPOUT1R_RMV_SHORT |
727                                 WM8996_HPOUT1R_OUTP |
728                                 WM8996_HPOUT1R_DLY;
729                 }
730 
731                 snd_soc_update_bits(codec, WM8996_ANALOGUE_HP_1, mask, val);
732 
733                 val = 0;
734                 mask = 0;
735                 if (wm8996->hpout_pending & HPOUT2L) {
736                         val |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP;
737                         mask |= WM8996_HPOUT2L_RMV_SHORT | WM8996_HPOUT2L_OUTP;
738                 } else {
739                         mask |= WM8996_HPOUT2L_RMV_SHORT |
740                                 WM8996_HPOUT2L_OUTP |
741                                 WM8996_HPOUT2L_DLY;
742                 }
743 
744                 if (wm8996->hpout_pending & HPOUT2R) {
745                         val |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP;
746                         mask |= WM8996_HPOUT2R_RMV_SHORT | WM8996_HPOUT2R_OUTP;
747                 } else {
748                         mask |= WM8996_HPOUT2R_RMV_SHORT |
749                                 WM8996_HPOUT2R_OUTP |
750                                 WM8996_HPOUT2R_DLY;
751                 }
752 
753                 snd_soc_update_bits(codec, WM8996_ANALOGUE_HP_2, mask, val);
754 
755                 wm8996->hpout_ena = wm8996->hpout_pending;
756         }
757 }
758 
759 static int dcs_start(struct snd_soc_dapm_widget *w,
760                      struct snd_kcontrol *kcontrol, int event)
761 {
762         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
763         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
764 
765         switch (event) {
766         case SND_SOC_DAPM_POST_PMU:
767                 wm8996->dcs_pending |= 1 << w->shift;
768                 break;
769         default:
770                 WARN(1, "Invalid event %d\n", event);
771                 return -EINVAL;
772         }
773 
774         return 0;
775 }
776 
777 static const char *sidetone_text[] = {
778         "IN1", "IN2",
779 };
780 
781 static SOC_ENUM_SINGLE_DECL(left_sidetone_enum,
782                             WM8996_SIDETONE, 0, sidetone_text);
783 
784 static const struct snd_kcontrol_new left_sidetone =
785         SOC_DAPM_ENUM("Left Sidetone", left_sidetone_enum);
786 
787 static SOC_ENUM_SINGLE_DECL(right_sidetone_enum,
788                             WM8996_SIDETONE, 1, sidetone_text);
789 
790 static const struct snd_kcontrol_new right_sidetone =
791         SOC_DAPM_ENUM("Right Sidetone", right_sidetone_enum);
792 
793 static const char *spk_text[] = {
794         "DAC1L", "DAC1R", "DAC2L", "DAC2R"
795 };
796 
797 static SOC_ENUM_SINGLE_DECL(spkl_enum,
798                             WM8996_LEFT_PDM_SPEAKER, 0, spk_text);
799 
800 static const struct snd_kcontrol_new spkl_mux =
801         SOC_DAPM_ENUM("SPKL", spkl_enum);
802 
803 static SOC_ENUM_SINGLE_DECL(spkr_enum,
804                             WM8996_RIGHT_PDM_SPEAKER, 0, spk_text);
805 
806 static const struct snd_kcontrol_new spkr_mux =
807         SOC_DAPM_ENUM("SPKR", spkr_enum);
808 
809 static const char *dsp1rx_text[] = {
810         "AIF1", "AIF2"
811 };
812 
813 static SOC_ENUM_SINGLE_DECL(dsp1rx_enum,
814                             WM8996_POWER_MANAGEMENT_8, 0, dsp1rx_text);
815 
816 static const struct snd_kcontrol_new dsp1rx =
817         SOC_DAPM_ENUM("DSP1RX", dsp1rx_enum);
818 
819 static const char *dsp2rx_text[] = {
820          "AIF2", "AIF1"
821 };
822 
823 static SOC_ENUM_SINGLE_DECL(dsp2rx_enum,
824                             WM8996_POWER_MANAGEMENT_8, 4, dsp2rx_text);
825 
826 static const struct snd_kcontrol_new dsp2rx =
827         SOC_DAPM_ENUM("DSP2RX", dsp2rx_enum);
828 
829 static const char *aif2tx_text[] = {
830         "DSP2", "DSP1", "AIF1"
831 };
832 
833 static SOC_ENUM_SINGLE_DECL(aif2tx_enum,
834                             WM8996_POWER_MANAGEMENT_8, 6, aif2tx_text);
835 
836 static const struct snd_kcontrol_new aif2tx =
837         SOC_DAPM_ENUM("AIF2TX", aif2tx_enum);
838 
839 static const char *inmux_text[] = {
840         "ADC", "DMIC1", "DMIC2"
841 };
842 
843 static SOC_ENUM_SINGLE_DECL(in1_enum,
844                             WM8996_POWER_MANAGEMENT_7, 0, inmux_text);
845 
846 static const struct snd_kcontrol_new in1_mux =
847         SOC_DAPM_ENUM("IN1 Mux", in1_enum);
848 
849 static SOC_ENUM_SINGLE_DECL(in2_enum,
850                             WM8996_POWER_MANAGEMENT_7, 4, inmux_text);
851 
852 static const struct snd_kcontrol_new in2_mux =
853         SOC_DAPM_ENUM("IN2 Mux", in2_enum);
854 
855 static const struct snd_kcontrol_new dac2r_mix[] = {
856 SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING,
857                 5, 1, 0),
858 SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING,
859                 4, 1, 0),
860 SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 1, 1, 0),
861 SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_RIGHT_MIXER_ROUTING, 0, 1, 0),
862 };
863 
864 static const struct snd_kcontrol_new dac2l_mix[] = {
865 SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING,
866                 5, 1, 0),
867 SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC2_LEFT_MIXER_ROUTING,
868                 4, 1, 0),
869 SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 1, 1, 0),
870 SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC2_LEFT_MIXER_ROUTING, 0, 1, 0),
871 };
872 
873 static const struct snd_kcontrol_new dac1r_mix[] = {
874 SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING,
875                 5, 1, 0),
876 SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING,
877                 4, 1, 0),
878 SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 1, 1, 0),
879 SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_RIGHT_MIXER_ROUTING, 0, 1, 0),
880 };
881 
882 static const struct snd_kcontrol_new dac1l_mix[] = {
883 SOC_DAPM_SINGLE("Right Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING,
884                 5, 1, 0),
885 SOC_DAPM_SINGLE("Left Sidetone Switch", WM8996_DAC1_LEFT_MIXER_ROUTING,
886                 4, 1, 0),
887 SOC_DAPM_SINGLE("DSP2 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 1, 1, 0),
888 SOC_DAPM_SINGLE("DSP1 Switch", WM8996_DAC1_LEFT_MIXER_ROUTING, 0, 1, 0),
889 };
890 
891 static const struct snd_kcontrol_new dsp1txl[] = {
892 SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING,
893                 1, 1, 0),
894 SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_LEFT_MIXER_ROUTING,
895                 0, 1, 0),
896 };
897 
898 static const struct snd_kcontrol_new dsp1txr[] = {
899 SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING,
900                 1, 1, 0),
901 SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP1_TX_RIGHT_MIXER_ROUTING,
902                 0, 1, 0),
903 };
904 
905 static const struct snd_kcontrol_new dsp2txl[] = {
906 SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING,
907                 1, 1, 0),
908 SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_LEFT_MIXER_ROUTING,
909                 0, 1, 0),
910 };
911 
912 static const struct snd_kcontrol_new dsp2txr[] = {
913 SOC_DAPM_SINGLE("IN1 Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING,
914                 1, 1, 0),
915 SOC_DAPM_SINGLE("DAC Switch", WM8996_DSP2_TX_RIGHT_MIXER_ROUTING,
916                 0, 1, 0),
917 };
918 
919 
920 static const struct snd_soc_dapm_widget wm8996_dapm_widgets[] = {
921 SND_SOC_DAPM_INPUT("IN1LN"),
922 SND_SOC_DAPM_INPUT("IN1LP"),
923 SND_SOC_DAPM_INPUT("IN1RN"),
924 SND_SOC_DAPM_INPUT("IN1RP"),
925 
926 SND_SOC_DAPM_INPUT("IN2LN"),
927 SND_SOC_DAPM_INPUT("IN2LP"),
928 SND_SOC_DAPM_INPUT("IN2RN"),
929 SND_SOC_DAPM_INPUT("IN2RP"),
930 
931 SND_SOC_DAPM_INPUT("DMIC1DAT"),
932 SND_SOC_DAPM_INPUT("DMIC2DAT"),
933 
934 SND_SOC_DAPM_REGULATOR_SUPPLY("CPVDD", 20, 0),
935 SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, WM8996_AIF_CLOCKING_1, 0, 0, NULL, 0),
936 SND_SOC_DAPM_SUPPLY_S("SYSDSPCLK", 2, WM8996_CLOCKING_1, 1, 0, NULL, 0),
937 SND_SOC_DAPM_SUPPLY_S("AIFCLK", 2, WM8996_CLOCKING_1, 2, 0, NULL, 0),
938 SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8996_CHARGE_PUMP_1, 15, 0, cp_event,
939                       SND_SOC_DAPM_POST_PMU),
940 SND_SOC_DAPM_SUPPLY("Bandgap", SND_SOC_NOPM, 0, 0, bg_event,
941                     SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
942 SND_SOC_DAPM_SUPPLY("LDO2", WM8996_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
943 SND_SOC_DAPM_SUPPLY("MICB1 Audio", WM8996_MICBIAS_1, 4, 1, NULL, 0),
944 SND_SOC_DAPM_SUPPLY("MICB2 Audio", WM8996_MICBIAS_2, 4, 1, NULL, 0),
945 SND_SOC_DAPM_MICBIAS("MICB2", WM8996_POWER_MANAGEMENT_1, 9, 0),
946 SND_SOC_DAPM_MICBIAS("MICB1", WM8996_POWER_MANAGEMENT_1, 8, 0),
947 
948 SND_SOC_DAPM_PGA("IN1L PGA", WM8996_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
949 SND_SOC_DAPM_PGA("IN1R PGA", WM8996_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
950 
951 SND_SOC_DAPM_MUX("IN1L Mux", WM8996_POWER_MANAGEMENT_7, 2, 0, &in1_mux),
952 SND_SOC_DAPM_MUX("IN1R Mux", WM8996_POWER_MANAGEMENT_7, 3, 0, &in1_mux),
953 SND_SOC_DAPM_MUX("IN2L Mux", WM8996_POWER_MANAGEMENT_7, 6, 0, &in2_mux),
954 SND_SOC_DAPM_MUX("IN2R Mux", WM8996_POWER_MANAGEMENT_7, 7, 0, &in2_mux),
955 
956 SND_SOC_DAPM_SUPPLY("DMIC2", WM8996_POWER_MANAGEMENT_7, 9, 0, NULL, 0),
957 SND_SOC_DAPM_SUPPLY("DMIC1", WM8996_POWER_MANAGEMENT_7, 8, 0, NULL, 0),
958 
959 SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8996_POWER_MANAGEMENT_3, 5, 0),
960 SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8996_POWER_MANAGEMENT_3, 4, 0),
961 SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8996_POWER_MANAGEMENT_3, 3, 0),
962 SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8996_POWER_MANAGEMENT_3, 2, 0),
963 
964 SND_SOC_DAPM_ADC("ADCL", NULL, WM8996_POWER_MANAGEMENT_3, 1, 0),
965 SND_SOC_DAPM_ADC("ADCR", NULL, WM8996_POWER_MANAGEMENT_3, 0, 0),
966 
967 SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &left_sidetone),
968 SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &right_sidetone),
969 
970 SND_SOC_DAPM_AIF_IN("DSP2RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 11, 0),
971 SND_SOC_DAPM_AIF_IN("DSP2RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 10, 0),
972 SND_SOC_DAPM_AIF_IN("DSP1RXL", NULL, 0, WM8996_POWER_MANAGEMENT_3, 9, 0),
973 SND_SOC_DAPM_AIF_IN("DSP1RXR", NULL, 1, WM8996_POWER_MANAGEMENT_3, 8, 0),
974 
975 SND_SOC_DAPM_MIXER("DSP2TXL", WM8996_POWER_MANAGEMENT_5, 11, 0,
976                    dsp2txl, ARRAY_SIZE(dsp2txl)),
977 SND_SOC_DAPM_MIXER("DSP2TXR", WM8996_POWER_MANAGEMENT_5, 10, 0,
978                    dsp2txr, ARRAY_SIZE(dsp2txr)),
979 SND_SOC_DAPM_MIXER("DSP1TXL", WM8996_POWER_MANAGEMENT_5, 9, 0,
980                    dsp1txl, ARRAY_SIZE(dsp1txl)),
981 SND_SOC_DAPM_MIXER("DSP1TXR", WM8996_POWER_MANAGEMENT_5, 8, 0,
982                    dsp1txr, ARRAY_SIZE(dsp1txr)),
983 
984 SND_SOC_DAPM_MIXER("DAC2L Mixer", SND_SOC_NOPM, 0, 0,
985                    dac2l_mix, ARRAY_SIZE(dac2l_mix)),
986 SND_SOC_DAPM_MIXER("DAC2R Mixer", SND_SOC_NOPM, 0, 0,
987                    dac2r_mix, ARRAY_SIZE(dac2r_mix)),
988 SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0,
989                    dac1l_mix, ARRAY_SIZE(dac1l_mix)),
990 SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0,
991                    dac1r_mix, ARRAY_SIZE(dac1r_mix)),
992 
993 SND_SOC_DAPM_DAC("DAC2L", NULL, WM8996_POWER_MANAGEMENT_5, 3, 0),
994 SND_SOC_DAPM_DAC("DAC2R", NULL, WM8996_POWER_MANAGEMENT_5, 2, 0),
995 SND_SOC_DAPM_DAC("DAC1L", NULL, WM8996_POWER_MANAGEMENT_5, 1, 0),
996 SND_SOC_DAPM_DAC("DAC1R", NULL, WM8996_POWER_MANAGEMENT_5, 0, 0),
997 
998 SND_SOC_DAPM_AIF_IN("AIF2RX1", NULL, 0, WM8996_POWER_MANAGEMENT_4, 9, 0),
999 SND_SOC_DAPM_AIF_IN("AIF2RX0", NULL, 1, WM8996_POWER_MANAGEMENT_4, 8, 0),
1000 
1001 SND_SOC_DAPM_AIF_OUT("AIF2TX1", NULL, 0, WM8996_POWER_MANAGEMENT_6, 9, 0),
1002 SND_SOC_DAPM_AIF_OUT("AIF2TX0", NULL, 1, WM8996_POWER_MANAGEMENT_6, 8, 0),
1003 
1004 SND_SOC_DAPM_AIF_IN("AIF1RX5", NULL, 5, WM8996_POWER_MANAGEMENT_4, 5, 0),
1005 SND_SOC_DAPM_AIF_IN("AIF1RX4", NULL, 4, WM8996_POWER_MANAGEMENT_4, 4, 0),
1006 SND_SOC_DAPM_AIF_IN("AIF1RX3", NULL, 3, WM8996_POWER_MANAGEMENT_4, 3, 0),
1007 SND_SOC_DAPM_AIF_IN("AIF1RX2", NULL, 2, WM8996_POWER_MANAGEMENT_4, 2, 0),
1008 SND_SOC_DAPM_AIF_IN("AIF1RX1", NULL, 1, WM8996_POWER_MANAGEMENT_4, 1, 0),
1009 SND_SOC_DAPM_AIF_IN("AIF1RX0", NULL, 0, WM8996_POWER_MANAGEMENT_4, 0, 0),
1010 
1011 SND_SOC_DAPM_AIF_OUT("AIF1TX5", NULL, 5, WM8996_POWER_MANAGEMENT_6, 5, 0),
1012 SND_SOC_DAPM_AIF_OUT("AIF1TX4", NULL, 4, WM8996_POWER_MANAGEMENT_6, 4, 0),
1013 SND_SOC_DAPM_AIF_OUT("AIF1TX3", NULL, 3, WM8996_POWER_MANAGEMENT_6, 3, 0),
1014 SND_SOC_DAPM_AIF_OUT("AIF1TX2", NULL, 2, WM8996_POWER_MANAGEMENT_6, 2, 0),
1015 SND_SOC_DAPM_AIF_OUT("AIF1TX1", NULL, 1, WM8996_POWER_MANAGEMENT_6, 1, 0),
1016 SND_SOC_DAPM_AIF_OUT("AIF1TX0", NULL, 0, WM8996_POWER_MANAGEMENT_6, 0, 0),
1017 
1018 /* We route as stereo pairs so define some dummy widgets to squash
1019  * things down for now.  RXA = 0,1, RXB = 2,3 and so on */
1020 SND_SOC_DAPM_PGA("AIF1RXA", SND_SOC_NOPM, 0, 0, NULL, 0),
1021 SND_SOC_DAPM_PGA("AIF1RXB", SND_SOC_NOPM, 0, 0, NULL, 0),
1022 SND_SOC_DAPM_PGA("AIF1RXC", SND_SOC_NOPM, 0, 0, NULL, 0),
1023 SND_SOC_DAPM_PGA("AIF2RX", SND_SOC_NOPM, 0, 0, NULL, 0),
1024 SND_SOC_DAPM_PGA("DSP2TX", SND_SOC_NOPM, 0, 0, NULL, 0),
1025 
1026 SND_SOC_DAPM_MUX("DSP1RX", SND_SOC_NOPM, 0, 0, &dsp1rx),
1027 SND_SOC_DAPM_MUX("DSP2RX", SND_SOC_NOPM, 0, 0, &dsp2rx),
1028 SND_SOC_DAPM_MUX("AIF2TX", SND_SOC_NOPM, 0, 0, &aif2tx),
1029 
1030 SND_SOC_DAPM_MUX("SPKL", SND_SOC_NOPM, 0, 0, &spkl_mux),
1031 SND_SOC_DAPM_MUX("SPKR", SND_SOC_NOPM, 0, 0, &spkr_mux),
1032 SND_SOC_DAPM_PGA("SPKL PGA", WM8996_LEFT_PDM_SPEAKER, 4, 0, NULL, 0),
1033 SND_SOC_DAPM_PGA("SPKR PGA", WM8996_RIGHT_PDM_SPEAKER, 4, 0, NULL, 0),
1034 
1035 SND_SOC_DAPM_PGA_S("HPOUT2L PGA", 0, WM8996_POWER_MANAGEMENT_1, 7, 0, NULL, 0),
1036 SND_SOC_DAPM_PGA_S("HPOUT2L_DLY", 1, WM8996_ANALOGUE_HP_2, 5, 0, NULL, 0),
1037 SND_SOC_DAPM_PGA_S("HPOUT2L_DCS", 2, WM8996_DC_SERVO_1, 2, 0, dcs_start,
1038                    SND_SOC_DAPM_POST_PMU),
1039 SND_SOC_DAPM_PGA_S("HPOUT2L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2L, 0,
1040                    rmv_short_event,
1041                    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1042 
1043 SND_SOC_DAPM_PGA_S("HPOUT2R PGA", 0, WM8996_POWER_MANAGEMENT_1, 6, 0,NULL, 0),
1044 SND_SOC_DAPM_PGA_S("HPOUT2R_DLY", 1, WM8996_ANALOGUE_HP_2, 1, 0, NULL, 0),
1045 SND_SOC_DAPM_PGA_S("HPOUT2R_DCS", 2, WM8996_DC_SERVO_1, 3, 0, dcs_start,
1046                    SND_SOC_DAPM_POST_PMU),
1047 SND_SOC_DAPM_PGA_S("HPOUT2R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2R, 0,
1048                    rmv_short_event,
1049                    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1050 
1051 SND_SOC_DAPM_PGA_S("HPOUT1L PGA", 0, WM8996_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
1052 SND_SOC_DAPM_PGA_S("HPOUT1L_DLY", 1, WM8996_ANALOGUE_HP_1, 5, 0, NULL, 0),
1053 SND_SOC_DAPM_PGA_S("HPOUT1L_DCS", 2, WM8996_DC_SERVO_1, 0, 0, dcs_start,
1054                    SND_SOC_DAPM_POST_PMU),
1055 SND_SOC_DAPM_PGA_S("HPOUT1L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1L, 0,
1056                    rmv_short_event,
1057                    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1058 
1059 SND_SOC_DAPM_PGA_S("HPOUT1R PGA", 0, WM8996_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
1060 SND_SOC_DAPM_PGA_S("HPOUT1R_DLY", 1, WM8996_ANALOGUE_HP_1, 1, 0, NULL, 0),
1061 SND_SOC_DAPM_PGA_S("HPOUT1R_DCS", 2, WM8996_DC_SERVO_1, 1, 0, dcs_start,
1062                    SND_SOC_DAPM_POST_PMU),
1063 SND_SOC_DAPM_PGA_S("HPOUT1R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1R, 0,
1064                    rmv_short_event,
1065                    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1066 
1067 SND_SOC_DAPM_OUTPUT("HPOUT1L"),
1068 SND_SOC_DAPM_OUTPUT("HPOUT1R"),
1069 SND_SOC_DAPM_OUTPUT("HPOUT2L"),
1070 SND_SOC_DAPM_OUTPUT("HPOUT2R"),
1071 SND_SOC_DAPM_OUTPUT("SPKDAT"),
1072 };
1073 
1074 static const struct snd_soc_dapm_route wm8996_dapm_routes[] = {
1075         { "AIFCLK", NULL, "SYSCLK" },
1076         { "SYSDSPCLK", NULL, "SYSCLK" },
1077         { "Charge Pump", NULL, "SYSCLK" },
1078         { "Charge Pump", NULL, "CPVDD" },
1079 
1080         { "MICB1", NULL, "LDO2" },
1081         { "MICB1", NULL, "MICB1 Audio" },
1082         { "MICB1", NULL, "Bandgap" },
1083         { "MICB2", NULL, "LDO2" },
1084         { "MICB2", NULL, "MICB2 Audio" },
1085         { "MICB2", NULL, "Bandgap" },
1086 
1087         { "AIF1RX0", NULL, "AIF1 Playback" },
1088         { "AIF1RX1", NULL, "AIF1 Playback" },
1089         { "AIF1RX2", NULL, "AIF1 Playback" },
1090         { "AIF1RX3", NULL, "AIF1 Playback" },
1091         { "AIF1RX4", NULL, "AIF1 Playback" },
1092         { "AIF1RX5", NULL, "AIF1 Playback" },
1093 
1094         { "AIF2RX0", NULL, "AIF2 Playback" },
1095         { "AIF2RX1", NULL, "AIF2 Playback" },
1096 
1097         { "AIF1 Capture", NULL, "AIF1TX0" },
1098         { "AIF1 Capture", NULL, "AIF1TX1" },
1099         { "AIF1 Capture", NULL, "AIF1TX2" },
1100         { "AIF1 Capture", NULL, "AIF1TX3" },
1101         { "AIF1 Capture", NULL, "AIF1TX4" },
1102         { "AIF1 Capture", NULL, "AIF1TX5" },
1103 
1104         { "AIF2 Capture", NULL, "AIF2TX0" },
1105         { "AIF2 Capture", NULL, "AIF2TX1" },
1106 
1107         { "IN1L PGA", NULL, "IN2LN" },
1108         { "IN1L PGA", NULL, "IN2LP" },
1109         { "IN1L PGA", NULL, "IN1LN" },
1110         { "IN1L PGA", NULL, "IN1LP" },
1111         { "IN1L PGA", NULL, "Bandgap" },
1112 
1113         { "IN1R PGA", NULL, "IN2RN" },
1114         { "IN1R PGA", NULL, "IN2RP" },
1115         { "IN1R PGA", NULL, "IN1RN" },
1116         { "IN1R PGA", NULL, "IN1RP" },
1117         { "IN1R PGA", NULL, "Bandgap" },
1118 
1119         { "ADCL", NULL, "IN1L PGA" },
1120 
1121         { "ADCR", NULL, "IN1R PGA" },
1122 
1123         { "DMIC1L", NULL, "DMIC1DAT" },
1124         { "DMIC1R", NULL, "DMIC1DAT" },
1125         { "DMIC2L", NULL, "DMIC2DAT" },
1126         { "DMIC2R", NULL, "DMIC2DAT" },
1127 
1128         { "DMIC2L", NULL, "DMIC2" },
1129         { "DMIC2R", NULL, "DMIC2" },
1130         { "DMIC1L", NULL, "DMIC1" },
1131         { "DMIC1R", NULL, "DMIC1" },
1132 
1133         { "IN1L Mux", "ADC", "ADCL" },
1134         { "IN1L Mux", "DMIC1", "DMIC1L" },
1135         { "IN1L Mux", "DMIC2", "DMIC2L" },
1136 
1137         { "IN1R Mux", "ADC", "ADCR" },
1138         { "IN1R Mux", "DMIC1", "DMIC1R" },
1139         { "IN1R Mux", "DMIC2", "DMIC2R" },
1140 
1141         { "IN2L Mux", "ADC", "ADCL" },
1142         { "IN2L Mux", "DMIC1", "DMIC1L" },
1143         { "IN2L Mux", "DMIC2", "DMIC2L" },
1144 
1145         { "IN2R Mux", "ADC", "ADCR" },
1146         { "IN2R Mux", "DMIC1", "DMIC1R" },
1147         { "IN2R Mux", "DMIC2", "DMIC2R" },
1148 
1149         { "Left Sidetone", "IN1", "IN1L Mux" },
1150         { "Left Sidetone", "IN2", "IN2L Mux" },
1151 
1152         { "Right Sidetone", "IN1", "IN1R Mux" },
1153         { "Right Sidetone", "IN2", "IN2R Mux" },
1154 
1155         { "DSP1TXL", "IN1 Switch", "IN1L Mux" },
1156         { "DSP1TXR", "IN1 Switch", "IN1R Mux" },
1157 
1158         { "DSP2TXL", "IN1 Switch", "IN2L Mux" },
1159         { "DSP2TXR", "IN1 Switch", "IN2R Mux" },
1160 
1161         { "AIF1TX0", NULL, "DSP1TXL" },
1162         { "AIF1TX1", NULL, "DSP1TXR" },
1163         { "AIF1TX2", NULL, "DSP2TXL" },
1164         { "AIF1TX3", NULL, "DSP2TXR" },
1165         { "AIF1TX4", NULL, "AIF2RX0" },
1166         { "AIF1TX5", NULL, "AIF2RX1" },
1167 
1168         { "AIF1RX0", NULL, "AIFCLK" },
1169         { "AIF1RX1", NULL, "AIFCLK" },
1170         { "AIF1RX2", NULL, "AIFCLK" },
1171         { "AIF1RX3", NULL, "AIFCLK" },
1172         { "AIF1RX4", NULL, "AIFCLK" },
1173         { "AIF1RX5", NULL, "AIFCLK" },
1174 
1175         { "AIF2RX0", NULL, "AIFCLK" },
1176         { "AIF2RX1", NULL, "AIFCLK" },
1177 
1178         { "AIF1TX0", NULL, "AIFCLK" },
1179         { "AIF1TX1", NULL, "AIFCLK" },
1180         { "AIF1TX2", NULL, "AIFCLK" },
1181         { "AIF1TX3", NULL, "AIFCLK" },
1182         { "AIF1TX4", NULL, "AIFCLK" },
1183         { "AIF1TX5", NULL, "AIFCLK" },
1184 
1185         { "AIF2TX0", NULL, "AIFCLK" },
1186         { "AIF2TX1", NULL, "AIFCLK" },
1187 
1188         { "DSP1RXL", NULL, "SYSDSPCLK" },
1189         { "DSP1RXR", NULL, "SYSDSPCLK" },
1190         { "DSP2RXL", NULL, "SYSDSPCLK" },
1191         { "DSP2RXR", NULL, "SYSDSPCLK" },
1192         { "DSP1TXL", NULL, "SYSDSPCLK" },
1193         { "DSP1TXR", NULL, "SYSDSPCLK" },
1194         { "DSP2TXL", NULL, "SYSDSPCLK" },
1195         { "DSP2TXR", NULL, "SYSDSPCLK" },
1196 
1197         { "AIF1RXA", NULL, "AIF1RX0" },
1198         { "AIF1RXA", NULL, "AIF1RX1" },
1199         { "AIF1RXB", NULL, "AIF1RX2" },
1200         { "AIF1RXB", NULL, "AIF1RX3" },
1201         { "AIF1RXC", NULL, "AIF1RX4" },
1202         { "AIF1RXC", NULL, "AIF1RX5" },
1203 
1204         { "AIF2RX", NULL, "AIF2RX0" },
1205         { "AIF2RX", NULL, "AIF2RX1" },
1206 
1207         { "AIF2TX", "DSP2", "DSP2TX" },
1208         { "AIF2TX", "DSP1", "DSP1RX" },
1209         { "AIF2TX", "AIF1", "AIF1RXC" },
1210 
1211         { "DSP1RXL", NULL, "DSP1RX" },
1212         { "DSP1RXR", NULL, "DSP1RX" },
1213         { "DSP2RXL", NULL, "DSP2RX" },
1214         { "DSP2RXR", NULL, "DSP2RX" },
1215 
1216         { "DSP2TX", NULL, "DSP2TXL" },
1217         { "DSP2TX", NULL, "DSP2TXR" },
1218 
1219         { "DSP1RX", "AIF1", "AIF1RXA" },
1220         { "DSP1RX", "AIF2", "AIF2RX" },
1221 
1222         { "DSP2RX", "AIF1", "AIF1RXB" },
1223         { "DSP2RX", "AIF2", "AIF2RX" },
1224 
1225         { "DAC2L Mixer", "DSP2 Switch", "DSP2RXL" },
1226         { "DAC2L Mixer", "DSP1 Switch", "DSP1RXL" },
1227         { "DAC2L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1228         { "DAC2L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1229 
1230         { "DAC2R Mixer", "DSP2 Switch", "DSP2RXR" },
1231         { "DAC2R Mixer", "DSP1 Switch", "DSP1RXR" },
1232         { "DAC2R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1233         { "DAC2R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1234 
1235         { "DAC1L Mixer", "DSP2 Switch", "DSP2RXL" },
1236         { "DAC1L Mixer", "DSP1 Switch", "DSP1RXL" },
1237         { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1238         { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1239 
1240         { "DAC1R Mixer", "DSP2 Switch", "DSP2RXR" },
1241         { "DAC1R Mixer", "DSP1 Switch", "DSP1RXR" },
1242         { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1243         { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1244 
1245         { "DAC1L", NULL, "DAC1L Mixer" },
1246         { "DAC1R", NULL, "DAC1R Mixer" },
1247         { "DAC2L", NULL, "DAC2L Mixer" },
1248         { "DAC2R", NULL, "DAC2R Mixer" },
1249 
1250         { "HPOUT2L PGA", NULL, "Charge Pump" },
1251         { "HPOUT2L PGA", NULL, "Bandgap" },
1252         { "HPOUT2L PGA", NULL, "DAC2L" },
1253         { "HPOUT2L_DLY", NULL, "HPOUT2L PGA" },
1254         { "HPOUT2L_DCS", NULL, "HPOUT2L_DLY" },
1255         { "HPOUT2L_RMV_SHORT", NULL, "HPOUT2L_DCS" },
1256 
1257         { "HPOUT2R PGA", NULL, "Charge Pump" },
1258         { "HPOUT2R PGA", NULL, "Bandgap" },
1259         { "HPOUT2R PGA", NULL, "DAC2R" },
1260         { "HPOUT2R_DLY", NULL, "HPOUT2R PGA" },
1261         { "HPOUT2R_DCS", NULL, "HPOUT2R_DLY" },
1262         { "HPOUT2R_RMV_SHORT", NULL, "HPOUT2R_DCS" },
1263 
1264         { "HPOUT1L PGA", NULL, "Charge Pump" },
1265         { "HPOUT1L PGA", NULL, "Bandgap" },
1266         { "HPOUT1L PGA", NULL, "DAC1L" },
1267         { "HPOUT1L_DLY", NULL, "HPOUT1L PGA" },
1268         { "HPOUT1L_DCS", NULL, "HPOUT1L_DLY" },
1269         { "HPOUT1L_RMV_SHORT", NULL, "HPOUT1L_DCS" },
1270 
1271         { "HPOUT1R PGA", NULL, "Charge Pump" },
1272         { "HPOUT1R PGA", NULL, "Bandgap" },
1273         { "HPOUT1R PGA", NULL, "DAC1R" },
1274         { "HPOUT1R_DLY", NULL, "HPOUT1R PGA" },
1275         { "HPOUT1R_DCS", NULL, "HPOUT1R_DLY" },
1276         { "HPOUT1R_RMV_SHORT", NULL, "HPOUT1R_DCS" },
1277 
1278         { "HPOUT2L", NULL, "HPOUT2L_RMV_SHORT" },
1279         { "HPOUT2R", NULL, "HPOUT2R_RMV_SHORT" },
1280         { "HPOUT1L", NULL, "HPOUT1L_RMV_SHORT" },
1281         { "HPOUT1R", NULL, "HPOUT1R_RMV_SHORT" },
1282 
1283         { "SPKL", "DAC1L", "DAC1L" },
1284         { "SPKL", "DAC1R", "DAC1R" },
1285         { "SPKL", "DAC2L", "DAC2L" },
1286         { "SPKL", "DAC2R", "DAC2R" },
1287 
1288         { "SPKR", "DAC1L", "DAC1L" },
1289         { "SPKR", "DAC1R", "DAC1R" },
1290         { "SPKR", "DAC2L", "DAC2L" },
1291         { "SPKR", "DAC2R", "DAC2R" },
1292 
1293         { "SPKL PGA", NULL, "SPKL" },
1294         { "SPKR PGA", NULL, "SPKR" },
1295 
1296         { "SPKDAT", NULL, "SPKL PGA" },
1297         { "SPKDAT", NULL, "SPKR PGA" },
1298 };
1299 
1300 static bool wm8996_readable_register(struct device *dev, unsigned int reg)
1301 {
1302         /* Due to the sparseness of the register map the compiler
1303          * output from an explicit switch statement ends up being much
1304          * more efficient than a table.
1305          */
1306         switch (reg) {
1307         case WM8996_SOFTWARE_RESET:
1308         case WM8996_POWER_MANAGEMENT_1:
1309         case WM8996_POWER_MANAGEMENT_2:
1310         case WM8996_POWER_MANAGEMENT_3:
1311         case WM8996_POWER_MANAGEMENT_4:
1312         case WM8996_POWER_MANAGEMENT_5:
1313         case WM8996_POWER_MANAGEMENT_6:
1314         case WM8996_POWER_MANAGEMENT_7:
1315         case WM8996_POWER_MANAGEMENT_8:
1316         case WM8996_LEFT_LINE_INPUT_VOLUME:
1317         case WM8996_RIGHT_LINE_INPUT_VOLUME:
1318         case WM8996_LINE_INPUT_CONTROL:
1319         case WM8996_DAC1_HPOUT1_VOLUME:
1320         case WM8996_DAC2_HPOUT2_VOLUME:
1321         case WM8996_DAC1_LEFT_VOLUME:
1322         case WM8996_DAC1_RIGHT_VOLUME:
1323         case WM8996_DAC2_LEFT_VOLUME:
1324         case WM8996_DAC2_RIGHT_VOLUME:
1325         case WM8996_OUTPUT1_LEFT_VOLUME:
1326         case WM8996_OUTPUT1_RIGHT_VOLUME:
1327         case WM8996_OUTPUT2_LEFT_VOLUME:
1328         case WM8996_OUTPUT2_RIGHT_VOLUME:
1329         case WM8996_MICBIAS_1:
1330         case WM8996_MICBIAS_2:
1331         case WM8996_LDO_1:
1332         case WM8996_LDO_2:
1333         case WM8996_ACCESSORY_DETECT_MODE_1:
1334         case WM8996_ACCESSORY_DETECT_MODE_2:
1335         case WM8996_HEADPHONE_DETECT_1:
1336         case WM8996_HEADPHONE_DETECT_2:
1337         case WM8996_MIC_DETECT_1:
1338         case WM8996_MIC_DETECT_2:
1339         case WM8996_MIC_DETECT_3:
1340         case WM8996_CHARGE_PUMP_1:
1341         case WM8996_CHARGE_PUMP_2:
1342         case WM8996_DC_SERVO_1:
1343         case WM8996_DC_SERVO_2:
1344         case WM8996_DC_SERVO_3:
1345         case WM8996_DC_SERVO_5:
1346         case WM8996_DC_SERVO_6:
1347         case WM8996_DC_SERVO_7:
1348         case WM8996_DC_SERVO_READBACK_0:
1349         case WM8996_ANALOGUE_HP_1:
1350         case WM8996_ANALOGUE_HP_2:
1351         case WM8996_CHIP_REVISION:
1352         case WM8996_CONTROL_INTERFACE_1:
1353         case WM8996_WRITE_SEQUENCER_CTRL_1:
1354         case WM8996_WRITE_SEQUENCER_CTRL_2:
1355         case WM8996_AIF_CLOCKING_1:
1356         case WM8996_AIF_CLOCKING_2:
1357         case WM8996_CLOCKING_1:
1358         case WM8996_CLOCKING_2:
1359         case WM8996_AIF_RATE:
1360         case WM8996_FLL_CONTROL_1:
1361         case WM8996_FLL_CONTROL_2:
1362         case WM8996_FLL_CONTROL_3:
1363         case WM8996_FLL_CONTROL_4:
1364         case WM8996_FLL_CONTROL_5:
1365         case WM8996_FLL_CONTROL_6:
1366         case WM8996_FLL_EFS_1:
1367         case WM8996_FLL_EFS_2:
1368         case WM8996_AIF1_CONTROL:
1369         case WM8996_AIF1_BCLK:
1370         case WM8996_AIF1_TX_LRCLK_1:
1371         case WM8996_AIF1_TX_LRCLK_2:
1372         case WM8996_AIF1_RX_LRCLK_1:
1373         case WM8996_AIF1_RX_LRCLK_2:
1374         case WM8996_AIF1TX_DATA_CONFIGURATION_1:
1375         case WM8996_AIF1TX_DATA_CONFIGURATION_2:
1376         case WM8996_AIF1RX_DATA_CONFIGURATION:
1377         case WM8996_AIF1TX_CHANNEL_0_CONFIGURATION:
1378         case WM8996_AIF1TX_CHANNEL_1_CONFIGURATION:
1379         case WM8996_AIF1TX_CHANNEL_2_CONFIGURATION:
1380         case WM8996_AIF1TX_CHANNEL_3_CONFIGURATION:
1381         case WM8996_AIF1TX_CHANNEL_4_CONFIGURATION:
1382         case WM8996_AIF1TX_CHANNEL_5_CONFIGURATION:
1383         case WM8996_AIF1RX_CHANNEL_0_CONFIGURATION:
1384         case WM8996_AIF1RX_CHANNEL_1_CONFIGURATION:
1385         case WM8996_AIF1RX_CHANNEL_2_CONFIGURATION:
1386         case WM8996_AIF1RX_CHANNEL_3_CONFIGURATION:
1387         case WM8996_AIF1RX_CHANNEL_4_CONFIGURATION:
1388         case WM8996_AIF1RX_CHANNEL_5_CONFIGURATION:
1389         case WM8996_AIF1RX_MONO_CONFIGURATION:
1390         case WM8996_AIF1TX_TEST:
1391         case WM8996_AIF2_CONTROL:
1392         case WM8996_AIF2_BCLK:
1393         case WM8996_AIF2_TX_LRCLK_1:
1394         case WM8996_AIF2_TX_LRCLK_2:
1395         case WM8996_AIF2_RX_LRCLK_1:
1396         case WM8996_AIF2_RX_LRCLK_2:
1397         case WM8996_AIF2TX_DATA_CONFIGURATION_1:
1398         case WM8996_AIF2TX_DATA_CONFIGURATION_2:
1399         case WM8996_AIF2RX_DATA_CONFIGURATION:
1400         case WM8996_AIF2TX_CHANNEL_0_CONFIGURATION:
1401         case WM8996_AIF2TX_CHANNEL_1_CONFIGURATION:
1402         case WM8996_AIF2RX_CHANNEL_0_CONFIGURATION:
1403         case WM8996_AIF2RX_CHANNEL_1_CONFIGURATION:
1404         case WM8996_AIF2RX_MONO_CONFIGURATION:
1405         case WM8996_AIF2TX_TEST:
1406         case WM8996_DSP1_TX_LEFT_VOLUME:
1407         case WM8996_DSP1_TX_RIGHT_VOLUME:
1408         case WM8996_DSP1_RX_LEFT_VOLUME:
1409         case WM8996_DSP1_RX_RIGHT_VOLUME:
1410         case WM8996_DSP1_TX_FILTERS:
1411         case WM8996_DSP1_RX_FILTERS_1:
1412         case WM8996_DSP1_RX_FILTERS_2:
1413         case WM8996_DSP1_DRC_1:
1414         case WM8996_DSP1_DRC_2:
1415         case WM8996_DSP1_DRC_3:
1416         case WM8996_DSP1_DRC_4:
1417         case WM8996_DSP1_DRC_5:
1418         case WM8996_DSP1_RX_EQ_GAINS_1:
1419         case WM8996_DSP1_RX_EQ_GAINS_2:
1420         case WM8996_DSP1_RX_EQ_BAND_1_A:
1421         case WM8996_DSP1_RX_EQ_BAND_1_B:
1422         case WM8996_DSP1_RX_EQ_BAND_1_PG:
1423         case WM8996_DSP1_RX_EQ_BAND_2_A:
1424         case WM8996_DSP1_RX_EQ_BAND_2_B:
1425         case WM8996_DSP1_RX_EQ_BAND_2_C:
1426         case WM8996_DSP1_RX_EQ_BAND_2_PG:
1427         case WM8996_DSP1_RX_EQ_BAND_3_A:
1428         case WM8996_DSP1_RX_EQ_BAND_3_B:
1429         case WM8996_DSP1_RX_EQ_BAND_3_C:
1430         case WM8996_DSP1_RX_EQ_BAND_3_PG:
1431         case WM8996_DSP1_RX_EQ_BAND_4_A:
1432         case WM8996_DSP1_RX_EQ_BAND_4_B:
1433         case WM8996_DSP1_RX_EQ_BAND_4_C:
1434         case WM8996_DSP1_RX_EQ_BAND_4_PG:
1435         case WM8996_DSP1_RX_EQ_BAND_5_A:
1436         case WM8996_DSP1_RX_EQ_BAND_5_B:
1437         case WM8996_DSP1_RX_EQ_BAND_5_PG:
1438         case WM8996_DSP2_TX_LEFT_VOLUME:
1439         case WM8996_DSP2_TX_RIGHT_VOLUME:
1440         case WM8996_DSP2_RX_LEFT_VOLUME:
1441         case WM8996_DSP2_RX_RIGHT_VOLUME:
1442         case WM8996_DSP2_TX_FILTERS:
1443         case WM8996_DSP2_RX_FILTERS_1:
1444         case WM8996_DSP2_RX_FILTERS_2:
1445         case WM8996_DSP2_DRC_1:
1446         case WM8996_DSP2_DRC_2:
1447         case WM8996_DSP2_DRC_3:
1448         case WM8996_DSP2_DRC_4:
1449         case WM8996_DSP2_DRC_5:
1450         case WM8996_DSP2_RX_EQ_GAINS_1:
1451         case WM8996_DSP2_RX_EQ_GAINS_2:
1452         case WM8996_DSP2_RX_EQ_BAND_1_A:
1453         case WM8996_DSP2_RX_EQ_BAND_1_B:
1454         case WM8996_DSP2_RX_EQ_BAND_1_PG:
1455         case WM8996_DSP2_RX_EQ_BAND_2_A:
1456         case WM8996_DSP2_RX_EQ_BAND_2_B:
1457         case WM8996_DSP2_RX_EQ_BAND_2_C:
1458         case WM8996_DSP2_RX_EQ_BAND_2_PG:
1459         case WM8996_DSP2_RX_EQ_BAND_3_A:
1460         case WM8996_DSP2_RX_EQ_BAND_3_B:
1461         case WM8996_DSP2_RX_EQ_BAND_3_C:
1462         case WM8996_DSP2_RX_EQ_BAND_3_PG:
1463         case WM8996_DSP2_RX_EQ_BAND_4_A:
1464         case WM8996_DSP2_RX_EQ_BAND_4_B:
1465         case WM8996_DSP2_RX_EQ_BAND_4_C:
1466         case WM8996_DSP2_RX_EQ_BAND_4_PG:
1467         case WM8996_DSP2_RX_EQ_BAND_5_A:
1468         case WM8996_DSP2_RX_EQ_BAND_5_B:
1469         case WM8996_DSP2_RX_EQ_BAND_5_PG:
1470         case WM8996_DAC1_MIXER_VOLUMES:
1471         case WM8996_DAC1_LEFT_MIXER_ROUTING:
1472         case WM8996_DAC1_RIGHT_MIXER_ROUTING:
1473         case WM8996_DAC2_MIXER_VOLUMES:
1474         case WM8996_DAC2_LEFT_MIXER_ROUTING:
1475         case WM8996_DAC2_RIGHT_MIXER_ROUTING:
1476         case WM8996_DSP1_TX_LEFT_MIXER_ROUTING:
1477         case WM8996_DSP1_TX_RIGHT_MIXER_ROUTING:
1478         case WM8996_DSP2_TX_LEFT_MIXER_ROUTING:
1479         case WM8996_DSP2_TX_RIGHT_MIXER_ROUTING:
1480         case WM8996_DSP_TX_MIXER_SELECT:
1481         case WM8996_DAC_SOFTMUTE:
1482         case WM8996_OVERSAMPLING:
1483         case WM8996_SIDETONE:
1484         case WM8996_GPIO_1:
1485         case WM8996_GPIO_2:
1486         case WM8996_GPIO_3:
1487         case WM8996_GPIO_4:
1488         case WM8996_GPIO_5:
1489         case WM8996_PULL_CONTROL_1:
1490         case WM8996_PULL_CONTROL_2:
1491         case WM8996_INTERRUPT_STATUS_1:
1492         case WM8996_INTERRUPT_STATUS_2:
1493         case WM8996_INTERRUPT_RAW_STATUS_2:
1494         case WM8996_INTERRUPT_STATUS_1_MASK:
1495         case WM8996_INTERRUPT_STATUS_2_MASK:
1496         case WM8996_INTERRUPT_CONTROL:
1497         case WM8996_LEFT_PDM_SPEAKER:
1498         case WM8996_RIGHT_PDM_SPEAKER:
1499         case WM8996_PDM_SPEAKER_MUTE_SEQUENCE:
1500         case WM8996_PDM_SPEAKER_VOLUME:
1501                 return 1;
1502         default:
1503                 return 0;
1504         }
1505 }
1506 
1507 static bool wm8996_volatile_register(struct device *dev, unsigned int reg)
1508 {
1509         switch (reg) {
1510         case WM8996_SOFTWARE_RESET:
1511         case WM8996_CHIP_REVISION:
1512         case WM8996_LDO_1:
1513         case WM8996_LDO_2:
1514         case WM8996_INTERRUPT_STATUS_1:
1515         case WM8996_INTERRUPT_STATUS_2:
1516         case WM8996_INTERRUPT_RAW_STATUS_2:
1517         case WM8996_DC_SERVO_READBACK_0:
1518         case WM8996_DC_SERVO_2:
1519         case WM8996_DC_SERVO_6:
1520         case WM8996_DC_SERVO_7:
1521         case WM8996_FLL_CONTROL_6:
1522         case WM8996_MIC_DETECT_3:
1523         case WM8996_HEADPHONE_DETECT_1:
1524         case WM8996_HEADPHONE_DETECT_2:
1525                 return 1;
1526         default:
1527                 return 0;
1528         }
1529 }
1530 
1531 static const int bclk_divs[] = {
1532         1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
1533 };
1534 
1535 static void wm8996_update_bclk(struct snd_soc_codec *codec)
1536 {
1537         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
1538         int aif, best, cur_val, bclk_rate, bclk_reg, i;
1539 
1540         /* Don't bother if we're in a low frequency idle mode that
1541          * can't support audio.
1542          */
1543         if (wm8996->sysclk < 64000)
1544                 return;
1545 
1546         for (aif = 0; aif < WM8996_AIFS; aif++) {
1547                 switch (aif) {
1548                 case 0:
1549                         bclk_reg = WM8996_AIF1_BCLK;
1550                         break;
1551                 case 1:
1552                         bclk_reg = WM8996_AIF2_BCLK;
1553                         break;
1554                 }
1555 
1556                 bclk_rate = wm8996->bclk_rate[aif];
1557 
1558                 /* Pick a divisor for BCLK as close as we can get to ideal */
1559                 best = 0;
1560                 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1561                         cur_val = (wm8996->sysclk / bclk_divs[i]) - bclk_rate;
1562                         if (cur_val < 0) /* BCLK table is sorted */
1563                                 break;
1564                         best = i;
1565                 }
1566                 bclk_rate = wm8996->sysclk / bclk_divs[best];
1567                 dev_dbg(codec->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1568                         bclk_divs[best], bclk_rate);
1569 
1570                 snd_soc_update_bits(codec, bclk_reg,
1571                                     WM8996_AIF1_BCLK_DIV_MASK, best);
1572         }
1573 }
1574 
1575 static int wm8996_set_bias_level(struct snd_soc_codec *codec,
1576                                  enum snd_soc_bias_level level)
1577 {
1578         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
1579         int ret;
1580 
1581         switch (level) {
1582         case SND_SOC_BIAS_ON:
1583                 break;
1584         case SND_SOC_BIAS_PREPARE:
1585                 /* Put the MICBIASes into regulating mode */
1586                 snd_soc_update_bits(codec, WM8996_MICBIAS_1,
1587                                     WM8996_MICB1_MODE, 0);
1588                 snd_soc_update_bits(codec, WM8996_MICBIAS_2,
1589                                     WM8996_MICB2_MODE, 0);
1590                 break;
1591 
1592         case SND_SOC_BIAS_STANDBY:
1593                 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1594                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies),
1595                                                     wm8996->supplies);
1596                         if (ret != 0) {
1597                                 dev_err(codec->dev,
1598                                         "Failed to enable supplies: %d\n",
1599                                         ret);
1600                                 return ret;
1601                         }
1602 
1603                         if (wm8996->pdata.ldo_ena >= 0) {
1604                                 gpio_set_value_cansleep(wm8996->pdata.ldo_ena,
1605                                                         1);
1606                                 msleep(5);
1607                         }
1608 
1609                         regcache_cache_only(wm8996->regmap, false);
1610                         regcache_sync(wm8996->regmap);
1611                 }
1612 
1613                 /* Bypass the MICBIASes for lowest power */
1614                 snd_soc_update_bits(codec, WM8996_MICBIAS_1,
1615                                     WM8996_MICB1_MODE, WM8996_MICB1_MODE);
1616                 snd_soc_update_bits(codec, WM8996_MICBIAS_2,
1617                                     WM8996_MICB2_MODE, WM8996_MICB2_MODE);
1618                 break;
1619 
1620         case SND_SOC_BIAS_OFF:
1621                 regcache_cache_only(wm8996->regmap, true);
1622                 if (wm8996->pdata.ldo_ena >= 0) {
1623                         gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
1624                         regcache_cache_only(wm8996->regmap, true);
1625                 }
1626                 regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies),
1627                                        wm8996->supplies);
1628                 break;
1629         }
1630 
1631         return 0;
1632 }
1633 
1634 static int wm8996_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1635 {
1636         struct snd_soc_codec *codec = dai->codec;
1637         int aifctrl = 0;
1638         int bclk = 0;
1639         int lrclk_tx = 0;
1640         int lrclk_rx = 0;
1641         int aifctrl_reg, bclk_reg, lrclk_tx_reg, lrclk_rx_reg;
1642 
1643         switch (dai->id) {
1644         case 0:
1645                 aifctrl_reg = WM8996_AIF1_CONTROL;
1646                 bclk_reg = WM8996_AIF1_BCLK;
1647                 lrclk_tx_reg = WM8996_AIF1_TX_LRCLK_2;
1648                 lrclk_rx_reg = WM8996_AIF1_RX_LRCLK_2;
1649                 break;
1650         case 1:
1651                 aifctrl_reg = WM8996_AIF2_CONTROL;
1652                 bclk_reg = WM8996_AIF2_BCLK;
1653                 lrclk_tx_reg = WM8996_AIF2_TX_LRCLK_2;
1654                 lrclk_rx_reg = WM8996_AIF2_RX_LRCLK_2;
1655                 break;
1656         default:
1657                 WARN(1, "Invalid dai id %d\n", dai->id);
1658                 return -EINVAL;
1659         }
1660 
1661         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1662         case SND_SOC_DAIFMT_NB_NF:
1663                 break;
1664         case SND_SOC_DAIFMT_IB_NF:
1665                 bclk |= WM8996_AIF1_BCLK_INV;
1666                 break;
1667         case SND_SOC_DAIFMT_NB_IF:
1668                 lrclk_tx |= WM8996_AIF1TX_LRCLK_INV;
1669                 lrclk_rx |= WM8996_AIF1RX_LRCLK_INV;
1670                 break;
1671         case SND_SOC_DAIFMT_IB_IF:
1672                 bclk |= WM8996_AIF1_BCLK_INV;
1673                 lrclk_tx |= WM8996_AIF1TX_LRCLK_INV;
1674                 lrclk_rx |= WM8996_AIF1RX_LRCLK_INV;
1675                 break;
1676         }
1677 
1678         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1679         case SND_SOC_DAIFMT_CBS_CFS:
1680                 break;
1681         case SND_SOC_DAIFMT_CBS_CFM:
1682                 lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR;
1683                 lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR;
1684                 break;
1685         case SND_SOC_DAIFMT_CBM_CFS:
1686                 bclk |= WM8996_AIF1_BCLK_MSTR;
1687                 break;
1688         case SND_SOC_DAIFMT_CBM_CFM:
1689                 bclk |= WM8996_AIF1_BCLK_MSTR;
1690                 lrclk_tx |= WM8996_AIF1TX_LRCLK_MSTR;
1691                 lrclk_rx |= WM8996_AIF1RX_LRCLK_MSTR;
1692                 break;
1693         default:
1694                 return -EINVAL;
1695         }
1696 
1697         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1698         case SND_SOC_DAIFMT_DSP_A:
1699                 break;
1700         case SND_SOC_DAIFMT_DSP_B:
1701                 aifctrl |= 1;
1702                 break;
1703         case SND_SOC_DAIFMT_I2S:
1704                 aifctrl |= 2;
1705                 break;
1706         case SND_SOC_DAIFMT_LEFT_J:
1707                 aifctrl |= 3;
1708                 break;
1709         default:
1710                 return -EINVAL;
1711         }
1712 
1713         snd_soc_update_bits(codec, aifctrl_reg, WM8996_AIF1_FMT_MASK, aifctrl);
1714         snd_soc_update_bits(codec, bclk_reg,
1715                             WM8996_AIF1_BCLK_INV | WM8996_AIF1_BCLK_MSTR,
1716                             bclk);
1717         snd_soc_update_bits(codec, lrclk_tx_reg,
1718                             WM8996_AIF1TX_LRCLK_INV |
1719                             WM8996_AIF1TX_LRCLK_MSTR,
1720                             lrclk_tx);
1721         snd_soc_update_bits(codec, lrclk_rx_reg,
1722                             WM8996_AIF1RX_LRCLK_INV |
1723                             WM8996_AIF1RX_LRCLK_MSTR,
1724                             lrclk_rx);
1725 
1726         return 0;
1727 }
1728 
1729 static const int dsp_divs[] = {
1730         48000, 32000, 16000, 8000
1731 };
1732 
1733 static int wm8996_hw_params(struct snd_pcm_substream *substream,
1734                             struct snd_pcm_hw_params *params,
1735                             struct snd_soc_dai *dai)
1736 {
1737         struct snd_soc_codec *codec = dai->codec;
1738         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
1739         int bits, i, bclk_rate, best;
1740         int aifdata = 0;
1741         int lrclk = 0;
1742         int dsp = 0;
1743         int aifdata_reg, lrclk_reg, dsp_shift;
1744 
1745         switch (dai->id) {
1746         case 0:
1747                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
1748                     (snd_soc_read(codec, WM8996_GPIO_1)) & WM8996_GP1_FN_MASK) {
1749                         aifdata_reg = WM8996_AIF1RX_DATA_CONFIGURATION;
1750                         lrclk_reg = WM8996_AIF1_RX_LRCLK_1;
1751                 } else {
1752                         aifdata_reg = WM8996_AIF1TX_DATA_CONFIGURATION_1;
1753                         lrclk_reg = WM8996_AIF1_TX_LRCLK_1;
1754                 }
1755                 dsp_shift = 0;
1756                 break;
1757         case 1:
1758                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
1759                     (snd_soc_read(codec, WM8996_GPIO_2)) & WM8996_GP2_FN_MASK) {
1760                         aifdata_reg = WM8996_AIF2RX_DATA_CONFIGURATION;
1761                         lrclk_reg = WM8996_AIF2_RX_LRCLK_1;
1762                 } else {
1763                         aifdata_reg = WM8996_AIF2TX_DATA_CONFIGURATION_1;
1764                         lrclk_reg = WM8996_AIF2_TX_LRCLK_1;
1765                 }
1766                 dsp_shift = WM8996_DSP2_DIV_SHIFT;
1767                 break;
1768         default:
1769                 WARN(1, "Invalid dai id %d\n", dai->id);
1770                 return -EINVAL;
1771         }
1772 
1773         bclk_rate = snd_soc_params_to_bclk(params);
1774         if (bclk_rate < 0) {
1775                 dev_err(codec->dev, "Unsupported BCLK rate: %d\n", bclk_rate);
1776                 return bclk_rate;
1777         }
1778 
1779         wm8996->bclk_rate[dai->id] = bclk_rate;
1780         wm8996->rx_rate[dai->id] = params_rate(params);
1781 
1782         /* Needs looking at for TDM */
1783         bits = params_width(params);
1784         if (bits < 0)
1785                 return bits;
1786         aifdata |= (bits << WM8996_AIF1TX_WL_SHIFT) | bits;
1787 
1788         best = 0;
1789         for (i = 0; i < ARRAY_SIZE(dsp_divs); i++) {
1790                 if (abs(dsp_divs[i] - params_rate(params)) <
1791                     abs(dsp_divs[best] - params_rate(params)))
1792                         best = i;
1793         }
1794         dsp |= i << dsp_shift;
1795 
1796         wm8996_update_bclk(codec);
1797 
1798         lrclk = bclk_rate / params_rate(params);
1799         dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1800                 lrclk, bclk_rate / lrclk);
1801 
1802         snd_soc_update_bits(codec, aifdata_reg,
1803                             WM8996_AIF1TX_WL_MASK |
1804                             WM8996_AIF1TX_SLOT_LEN_MASK,
1805                             aifdata);
1806         snd_soc_update_bits(codec, lrclk_reg, WM8996_AIF1RX_RATE_MASK,
1807                             lrclk);
1808         snd_soc_update_bits(codec, WM8996_AIF_CLOCKING_2,
1809                             WM8996_DSP1_DIV_MASK << dsp_shift, dsp);
1810 
1811         return 0;
1812 }
1813 
1814 static int wm8996_set_sysclk(struct snd_soc_dai *dai,
1815                 int clk_id, unsigned int freq, int dir)
1816 {
1817         struct snd_soc_codec *codec = dai->codec;
1818         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
1819         int lfclk = 0;
1820         int ratediv = 0;
1821         int sync = WM8996_REG_SYNC;
1822         int src;
1823         int old;
1824 
1825         if (freq == wm8996->sysclk && clk_id == wm8996->sysclk_src)
1826                 return 0;
1827 
1828         /* Disable SYSCLK while we reconfigure */
1829         old = snd_soc_read(codec, WM8996_AIF_CLOCKING_1) & WM8996_SYSCLK_ENA;
1830         snd_soc_update_bits(codec, WM8996_AIF_CLOCKING_1,
1831                             WM8996_SYSCLK_ENA, 0);
1832 
1833         switch (clk_id) {
1834         case WM8996_SYSCLK_MCLK1:
1835                 wm8996->sysclk = freq;
1836                 src = 0;
1837                 break;
1838         case WM8996_SYSCLK_MCLK2:
1839                 wm8996->sysclk = freq;
1840                 src = 1;
1841                 break;
1842         case WM8996_SYSCLK_FLL:
1843                 wm8996->sysclk = freq;
1844                 src = 2;
1845                 break;
1846         default:
1847                 dev_err(codec->dev, "Unsupported clock source %d\n", clk_id);
1848                 return -EINVAL;
1849         }
1850 
1851         switch (wm8996->sysclk) {
1852         case 5644800:
1853         case 6144000:
1854                 snd_soc_update_bits(codec, WM8996_AIF_RATE,
1855                                     WM8996_SYSCLK_RATE, 0);
1856                 break;
1857         case 22579200:
1858         case 24576000:
1859                 ratediv = WM8996_SYSCLK_DIV;
1860                 wm8996->sysclk /= 2;
1861         case 11289600:
1862         case 12288000:
1863                 snd_soc_update_bits(codec, WM8996_AIF_RATE,
1864                                     WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE);
1865                 break;
1866         case 32000:
1867         case 32768:
1868                 lfclk = WM8996_LFCLK_ENA;
1869                 sync = 0;
1870                 break;
1871         default:
1872                 dev_warn(codec->dev, "Unsupported clock rate %dHz\n",
1873                          wm8996->sysclk);
1874                 return -EINVAL;
1875         }
1876 
1877         wm8996_update_bclk(codec);
1878 
1879         snd_soc_update_bits(codec, WM8996_AIF_CLOCKING_1,
1880                             WM8996_SYSCLK_SRC_MASK | WM8996_SYSCLK_DIV_MASK,
1881                             src << WM8996_SYSCLK_SRC_SHIFT | ratediv);
1882         snd_soc_update_bits(codec, WM8996_CLOCKING_1, WM8996_LFCLK_ENA, lfclk);
1883         snd_soc_update_bits(codec, WM8996_CONTROL_INTERFACE_1,
1884                             WM8996_REG_SYNC, sync);
1885         snd_soc_update_bits(codec, WM8996_AIF_CLOCKING_1,
1886                             WM8996_SYSCLK_ENA, old);
1887 
1888         wm8996->sysclk_src = clk_id;
1889 
1890         return 0;
1891 }
1892 
1893 struct _fll_div {
1894         u16 fll_fratio;
1895         u16 fll_outdiv;
1896         u16 fll_refclk_div;
1897         u16 fll_loop_gain;
1898         u16 fll_ref_freq;
1899         u16 n;
1900         u16 theta;
1901         u16 lambda;
1902 };
1903 
1904 static struct {
1905         unsigned int min;
1906         unsigned int max;
1907         u16 fll_fratio;
1908         int ratio;
1909 } fll_fratios[] = {
1910         {       0,    64000, 4, 16 },
1911         {   64000,   128000, 3,  8 },
1912         {  128000,   256000, 2,  4 },
1913         {  256000,  1000000, 1,  2 },
1914         { 1000000, 13500000, 0,  1 },
1915 };
1916 
1917 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1918                        unsigned int Fout)
1919 {
1920         unsigned int target;
1921         unsigned int div;
1922         unsigned int fratio, gcd_fll;
1923         int i;
1924 
1925         /* Fref must be <=13.5MHz */
1926         div = 1;
1927         fll_div->fll_refclk_div = 0;
1928         while ((Fref / div) > 13500000) {
1929                 div *= 2;
1930                 fll_div->fll_refclk_div++;
1931 
1932                 if (div > 8) {
1933                         pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1934                                Fref);
1935                         return -EINVAL;
1936                 }
1937         }
1938 
1939         pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout);
1940 
1941         /* Apply the division for our remaining calculations */
1942         Fref /= div;
1943 
1944         if (Fref >= 3000000)
1945                 fll_div->fll_loop_gain = 5;
1946         else
1947                 fll_div->fll_loop_gain = 0;
1948 
1949         if (Fref >= 48000)
1950                 fll_div->fll_ref_freq = 0;
1951         else
1952                 fll_div->fll_ref_freq = 1;
1953 
1954         /* Fvco should be 90-100MHz; don't check the upper bound */
1955         div = 2;
1956         while (Fout * div < 90000000) {
1957                 div++;
1958                 if (div > 64) {
1959                         pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1960                                Fout);
1961                         return -EINVAL;
1962                 }
1963         }
1964         target = Fout * div;
1965         fll_div->fll_outdiv = div - 1;
1966 
1967         pr_debug("FLL Fvco=%dHz\n", target);
1968 
1969         /* Find an appropraite FLL_FRATIO and factor it out of the target */
1970         for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1971                 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1972                         fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1973                         fratio = fll_fratios[i].ratio;
1974                         break;
1975                 }
1976         }
1977         if (i == ARRAY_SIZE(fll_fratios)) {
1978                 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1979                 return -EINVAL;
1980         }
1981 
1982         fll_div->n = target / (fratio * Fref);
1983 
1984         if (target % Fref == 0) {
1985                 fll_div->theta = 0;
1986                 fll_div->lambda = 0;
1987         } else {
1988                 gcd_fll = gcd(target, fratio * Fref);
1989 
1990                 fll_div->theta = (target - (fll_div->n * fratio * Fref))
1991                         / gcd_fll;
1992                 fll_div->lambda = (fratio * Fref) / gcd_fll;
1993         }
1994 
1995         pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
1996                  fll_div->n, fll_div->theta, fll_div->lambda);
1997         pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
1998                  fll_div->fll_fratio, fll_div->fll_outdiv,
1999                  fll_div->fll_refclk_div);
2000 
2001         return 0;
2002 }
2003 
2004 static int wm8996_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
2005                           unsigned int Fref, unsigned int Fout)
2006 {
2007         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2008         struct i2c_client *i2c = to_i2c_client(codec->dev);
2009         struct _fll_div fll_div;
2010         unsigned long timeout, time_left;
2011         int ret, reg, retry;
2012 
2013         /* Any change? */
2014         if (source == wm8996->fll_src && Fref == wm8996->fll_fref &&
2015             Fout == wm8996->fll_fout)
2016                 return 0;
2017 
2018         if (Fout == 0) {
2019                 dev_dbg(codec->dev, "FLL disabled\n");
2020 
2021                 wm8996->fll_fref = 0;
2022                 wm8996->fll_fout = 0;
2023 
2024                 snd_soc_update_bits(codec, WM8996_FLL_CONTROL_1,
2025                                     WM8996_FLL_ENA, 0);
2026 
2027                 wm8996_bg_disable(codec);
2028 
2029                 return 0;
2030         }
2031 
2032         ret = fll_factors(&fll_div, Fref, Fout);
2033         if (ret != 0)
2034                 return ret;
2035 
2036         switch (source) {
2037         case WM8996_FLL_MCLK1:
2038                 reg = 0;
2039                 break;
2040         case WM8996_FLL_MCLK2:
2041                 reg = 1;
2042                 break;
2043         case WM8996_FLL_DACLRCLK1:
2044                 reg = 2;
2045                 break;
2046         case WM8996_FLL_BCLK1:
2047                 reg = 3;
2048                 break;
2049         default:
2050                 dev_err(codec->dev, "Unknown FLL source %d\n", ret);
2051                 return -EINVAL;
2052         }
2053 
2054         reg |= fll_div.fll_refclk_div << WM8996_FLL_REFCLK_DIV_SHIFT;
2055         reg |= fll_div.fll_ref_freq << WM8996_FLL_REF_FREQ_SHIFT;
2056 
2057         snd_soc_update_bits(codec, WM8996_FLL_CONTROL_5,
2058                             WM8996_FLL_REFCLK_DIV_MASK | WM8996_FLL_REF_FREQ |
2059                             WM8996_FLL_REFCLK_SRC_MASK, reg);
2060 
2061         reg = 0;
2062         if (fll_div.theta || fll_div.lambda)
2063                 reg |= WM8996_FLL_EFS_ENA | (3 << WM8996_FLL_LFSR_SEL_SHIFT);
2064         else
2065                 reg |= 1 << WM8996_FLL_LFSR_SEL_SHIFT;
2066         snd_soc_write(codec, WM8996_FLL_EFS_2, reg);
2067 
2068         snd_soc_update_bits(codec, WM8996_FLL_CONTROL_2,
2069                             WM8996_FLL_OUTDIV_MASK |
2070                             WM8996_FLL_FRATIO_MASK,
2071                             (fll_div.fll_outdiv << WM8996_FLL_OUTDIV_SHIFT) |
2072                             (fll_div.fll_fratio));
2073 
2074         snd_soc_write(codec, WM8996_FLL_CONTROL_3, fll_div.theta);
2075 
2076         snd_soc_update_bits(codec, WM8996_FLL_CONTROL_4,
2077                             WM8996_FLL_N_MASK | WM8996_FLL_LOOP_GAIN_MASK,
2078                             (fll_div.n << WM8996_FLL_N_SHIFT) |
2079                             fll_div.fll_loop_gain);
2080 
2081         snd_soc_write(codec, WM8996_FLL_EFS_1, fll_div.lambda);
2082 
2083         /* Enable the bandgap if it's not already enabled */
2084         ret = snd_soc_read(codec, WM8996_FLL_CONTROL_1);
2085         if (!(ret & WM8996_FLL_ENA))
2086                 wm8996_bg_enable(codec);
2087 
2088         /* Clear any pending completions (eg, from failed startups) */
2089         try_wait_for_completion(&wm8996->fll_lock);
2090 
2091         snd_soc_update_bits(codec, WM8996_FLL_CONTROL_1,
2092                             WM8996_FLL_ENA, WM8996_FLL_ENA);
2093 
2094         /* The FLL supports live reconfiguration - kick that in case we were
2095          * already enabled.
2096          */
2097         snd_soc_write(codec, WM8996_FLL_CONTROL_6, WM8996_FLL_SWITCH_CLK);
2098 
2099         /* Wait for the FLL to lock, using the interrupt if possible */
2100         if (Fref > 1000000)
2101                 timeout = usecs_to_jiffies(300);
2102         else
2103                 timeout = msecs_to_jiffies(2);
2104 
2105         /* Allow substantially longer if we've actually got the IRQ, poll
2106          * at a slightly higher rate if we don't.
2107          */
2108         if (i2c->irq)
2109                 timeout *= 10;
2110         else
2111                 /* ensure timeout of atleast 1 jiffies */
2112                 timeout = timeout/2 ? : 1;
2113 
2114         for (retry = 0; retry < 10; retry++) {
2115                 time_left = wait_for_completion_timeout(&wm8996->fll_lock,
2116                                                         timeout);
2117                 if (time_left != 0) {
2118                         WARN_ON(!i2c->irq);
2119                         ret = 1;
2120                         break;
2121                 }
2122 
2123                 ret = snd_soc_read(codec, WM8996_INTERRUPT_RAW_STATUS_2);
2124                 if (ret & WM8996_FLL_LOCK_STS)
2125                         break;
2126         }
2127         if (retry == 10) {
2128                 dev_err(codec->dev, "Timed out waiting for FLL\n");
2129                 ret = -ETIMEDOUT;
2130         }
2131 
2132         dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
2133 
2134         wm8996->fll_fref = Fref;
2135         wm8996->fll_fout = Fout;
2136         wm8996->fll_src = source;
2137 
2138         return ret;
2139 }
2140 
2141 #ifdef CONFIG_GPIOLIB
2142 static inline struct wm8996_priv *gpio_to_wm8996(struct gpio_chip *chip)
2143 {
2144         return container_of(chip, struct wm8996_priv, gpio_chip);
2145 }
2146 
2147 static void wm8996_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
2148 {
2149         struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
2150 
2151         regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2152                            WM8996_GP1_LVL, !!value << WM8996_GP1_LVL_SHIFT);
2153 }
2154 
2155 static int wm8996_gpio_direction_out(struct gpio_chip *chip,
2156                                      unsigned offset, int value)
2157 {
2158         struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
2159         int val;
2160 
2161         val = (1 << WM8996_GP1_FN_SHIFT) | (!!value << WM8996_GP1_LVL_SHIFT);
2162 
2163         return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2164                                   WM8996_GP1_FN_MASK | WM8996_GP1_DIR |
2165                                   WM8996_GP1_LVL, val);
2166 }
2167 
2168 static int wm8996_gpio_get(struct gpio_chip *chip, unsigned offset)
2169 {
2170         struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
2171         unsigned int reg;
2172         int ret;
2173 
2174         ret = regmap_read(wm8996->regmap, WM8996_GPIO_1 + offset, &reg);
2175         if (ret < 0)
2176                 return ret;
2177 
2178         return (reg & WM8996_GP1_LVL) != 0;
2179 }
2180 
2181 static int wm8996_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
2182 {
2183         struct wm8996_priv *wm8996 = gpio_to_wm8996(chip);
2184 
2185         return regmap_update_bits(wm8996->regmap, WM8996_GPIO_1 + offset,
2186                                   WM8996_GP1_FN_MASK | WM8996_GP1_DIR,
2187                                   (1 << WM8996_GP1_FN_SHIFT) |
2188                                   (1 << WM8996_GP1_DIR_SHIFT));
2189 }
2190 
2191 static struct gpio_chip wm8996_template_chip = {
2192         .label                  = "wm8996",
2193         .owner                  = THIS_MODULE,
2194         .direction_output       = wm8996_gpio_direction_out,
2195         .set                    = wm8996_gpio_set,
2196         .direction_input        = wm8996_gpio_direction_in,
2197         .get                    = wm8996_gpio_get,
2198         .can_sleep              = 1,
2199 };
2200 
2201 static void wm8996_init_gpio(struct wm8996_priv *wm8996)
2202 {
2203         int ret;
2204 
2205         wm8996->gpio_chip = wm8996_template_chip;
2206         wm8996->gpio_chip.ngpio = 5;
2207         wm8996->gpio_chip.dev = wm8996->dev;
2208 
2209         if (wm8996->pdata.gpio_base)
2210                 wm8996->gpio_chip.base = wm8996->pdata.gpio_base;
2211         else
2212                 wm8996->gpio_chip.base = -1;
2213 
2214         ret = gpiochip_add(&wm8996->gpio_chip);
2215         if (ret != 0)
2216                 dev_err(wm8996->dev, "Failed to add GPIOs: %d\n", ret);
2217 }
2218 
2219 static void wm8996_free_gpio(struct wm8996_priv *wm8996)
2220 {
2221         gpiochip_remove(&wm8996->gpio_chip);
2222 }
2223 #else
2224 static void wm8996_init_gpio(struct wm8996_priv *wm8996)
2225 {
2226 }
2227 
2228 static void wm8996_free_gpio(struct wm8996_priv *wm8996)
2229 {
2230 }
2231 #endif
2232 
2233 /**
2234  * wm8996_detect - Enable default WM8996 jack detection
2235  *
2236  * The WM8996 has advanced accessory detection support for headsets.
2237  * This function provides a default implementation which integrates
2238  * the majority of this functionality with minimal user configuration.
2239  *
2240  * This will detect headset, headphone and short circuit button and
2241  * will also detect inverted microphone ground connections and update
2242  * the polarity of the connections.
2243  */
2244 int wm8996_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
2245                   wm8996_polarity_fn polarity_cb)
2246 {
2247         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2248         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
2249 
2250         wm8996->jack = jack;
2251         wm8996->detecting = true;
2252         wm8996->polarity_cb = polarity_cb;
2253         wm8996->jack_flips = 0;
2254 
2255         if (wm8996->polarity_cb)
2256                 wm8996->polarity_cb(codec, 0);
2257 
2258         /* Clear discarge to avoid noise during detection */
2259         snd_soc_update_bits(codec, WM8996_MICBIAS_1,
2260                             WM8996_MICB1_DISCH, 0);
2261         snd_soc_update_bits(codec, WM8996_MICBIAS_2,
2262                             WM8996_MICB2_DISCH, 0);
2263 
2264         /* LDO2 powers the microphones, SYSCLK clocks detection */
2265         snd_soc_dapm_mutex_lock(dapm);
2266 
2267         snd_soc_dapm_force_enable_pin_unlocked(dapm, "LDO2");
2268         snd_soc_dapm_force_enable_pin_unlocked(dapm, "SYSCLK");
2269 
2270         snd_soc_dapm_mutex_unlock(dapm);
2271 
2272         /* We start off just enabling microphone detection - even a
2273          * plain headphone will trigger detection.
2274          */
2275         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
2276                             WM8996_MICD_ENA, WM8996_MICD_ENA);
2277 
2278         /* Slowest detection rate, gives debounce for initial detection */
2279         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
2280                             WM8996_MICD_RATE_MASK,
2281                             WM8996_MICD_RATE_MASK);
2282 
2283         /* Enable interrupts and we're off */
2284         snd_soc_update_bits(codec, WM8996_INTERRUPT_STATUS_2_MASK,
2285                             WM8996_IM_MICD_EINT | WM8996_HP_DONE_EINT, 0);
2286 
2287         return 0;
2288 }
2289 EXPORT_SYMBOL_GPL(wm8996_detect);
2290 
2291 static void wm8996_hpdet_irq(struct snd_soc_codec *codec)
2292 {
2293         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
2294         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2295         int val, reg, report;
2296 
2297         /* Assume headphone in error conditions; we need to report
2298          * something or we stall our state machine.
2299          */
2300         report = SND_JACK_HEADPHONE;
2301 
2302         reg = snd_soc_read(codec, WM8996_HEADPHONE_DETECT_2);
2303         if (reg < 0) {
2304                 dev_err(codec->dev, "Failed to read HPDET status\n");
2305                 goto out;
2306         }
2307 
2308         if (!(reg & WM8996_HP_DONE)) {
2309                 dev_err(codec->dev, "Got HPDET IRQ but HPDET is busy\n");
2310                 goto out;
2311         }
2312 
2313         val = reg & WM8996_HP_LVL_MASK;
2314 
2315         dev_dbg(codec->dev, "HPDET measured %d ohms\n", val);
2316 
2317         /* If we've got high enough impedence then report as line,
2318          * otherwise assume headphone.
2319          */
2320         if (val >= 126)
2321                 report = SND_JACK_LINEOUT;
2322         else
2323                 report = SND_JACK_HEADPHONE;
2324 
2325 out:
2326         if (wm8996->jack_mic)
2327                 report |= SND_JACK_MICROPHONE;
2328 
2329         snd_soc_jack_report(wm8996->jack, report,
2330                             SND_JACK_LINEOUT | SND_JACK_HEADSET);
2331 
2332         wm8996->detecting = false;
2333 
2334         /* If the output isn't running re-clamp it */
2335         if (!(snd_soc_read(codec, WM8996_POWER_MANAGEMENT_1) &
2336               (WM8996_HPOUT1L_ENA | WM8996_HPOUT1R_RMV_SHORT)))
2337                 snd_soc_update_bits(codec, WM8996_ANALOGUE_HP_1,
2338                                     WM8996_HPOUT1L_RMV_SHORT |
2339                                     WM8996_HPOUT1R_RMV_SHORT, 0);
2340 
2341         /* Go back to looking at the microphone */
2342         snd_soc_update_bits(codec, WM8996_ACCESSORY_DETECT_MODE_1,
2343                             WM8996_JD_MODE_MASK, 0);
2344         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1, WM8996_MICD_ENA,
2345                             WM8996_MICD_ENA);
2346 
2347         snd_soc_dapm_disable_pin(dapm, "Bandgap");
2348         snd_soc_dapm_sync(dapm);
2349 }
2350 
2351 static void wm8996_hpdet_start(struct snd_soc_codec *codec)
2352 {
2353         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
2354 
2355         /* Unclamp the output, we can't measure while we're shorting it */
2356         snd_soc_update_bits(codec, WM8996_ANALOGUE_HP_1,
2357                             WM8996_HPOUT1L_RMV_SHORT |
2358                             WM8996_HPOUT1R_RMV_SHORT,
2359                             WM8996_HPOUT1L_RMV_SHORT |
2360                             WM8996_HPOUT1R_RMV_SHORT);
2361 
2362         /* We need bandgap for HPDET */
2363         snd_soc_dapm_force_enable_pin(dapm, "Bandgap");
2364         snd_soc_dapm_sync(dapm);
2365 
2366         /* Go into headphone detect left mode */
2367         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1, WM8996_MICD_ENA, 0);
2368         snd_soc_update_bits(codec, WM8996_ACCESSORY_DETECT_MODE_1,
2369                             WM8996_JD_MODE_MASK, 1);
2370 
2371         /* Trigger a measurement */
2372         snd_soc_update_bits(codec, WM8996_HEADPHONE_DETECT_1,
2373                             WM8996_HP_POLL, WM8996_HP_POLL);
2374 }
2375 
2376 static void wm8996_report_headphone(struct snd_soc_codec *codec)
2377 {
2378         dev_dbg(codec->dev, "Headphone detected\n");
2379         wm8996_hpdet_start(codec);
2380 
2381         /* Increase the detection rate a bit for responsiveness. */
2382         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
2383                             WM8996_MICD_RATE_MASK |
2384                             WM8996_MICD_BIAS_STARTTIME_MASK,
2385                             7 << WM8996_MICD_RATE_SHIFT |
2386                             7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2387 }
2388 
2389 static void wm8996_micd(struct snd_soc_codec *codec)
2390 {
2391         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2392         int val, reg;
2393 
2394         val = snd_soc_read(codec, WM8996_MIC_DETECT_3);
2395 
2396         dev_dbg(codec->dev, "Microphone event: %x\n", val);
2397 
2398         if (!(val & WM8996_MICD_VALID)) {
2399                 dev_warn(codec->dev, "Microphone detection state invalid\n");
2400                 return;
2401         }
2402 
2403         /* No accessory, reset everything and report removal */
2404         if (!(val & WM8996_MICD_STS)) {
2405                 dev_dbg(codec->dev, "Jack removal detected\n");
2406                 wm8996->jack_mic = false;
2407                 wm8996->detecting = true;
2408                 wm8996->jack_flips = 0;
2409                 snd_soc_jack_report(wm8996->jack, 0,
2410                                     SND_JACK_LINEOUT | SND_JACK_HEADSET |
2411                                     SND_JACK_BTN_0);
2412 
2413                 snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
2414                                     WM8996_MICD_RATE_MASK |
2415                                     WM8996_MICD_BIAS_STARTTIME_MASK,
2416                                     WM8996_MICD_RATE_MASK |
2417                                     9 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2418                 return;
2419         }
2420 
2421         /* If the measurement is very high we've got a microphone,
2422          * either we just detected one or if we already reported then
2423          * we've got a button release event.
2424          */
2425         if (val & 0x400) {
2426                 if (wm8996->detecting) {
2427                         dev_dbg(codec->dev, "Microphone detected\n");
2428                         wm8996->jack_mic = true;
2429                         wm8996_hpdet_start(codec);
2430 
2431                         /* Increase poll rate to give better responsiveness
2432                          * for buttons */
2433                         snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
2434                                             WM8996_MICD_RATE_MASK |
2435                                             WM8996_MICD_BIAS_STARTTIME_MASK,
2436                                             5 << WM8996_MICD_RATE_SHIFT |
2437                                             7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
2438                 } else {
2439                         dev_dbg(codec->dev, "Mic button up\n");
2440                         snd_soc_jack_report(wm8996->jack, 0, SND_JACK_BTN_0);
2441                 }
2442 
2443                 return;
2444         }
2445 
2446         /* If we detected a lower impedence during initial startup
2447          * then we probably have the wrong polarity, flip it.  Don't
2448          * do this for the lowest impedences to speed up detection of
2449          * plain headphones.  If both polarities report a low
2450          * impedence then give up and report headphones.
2451          */
2452         if (wm8996->detecting && (val & 0x3f0)) {
2453                 wm8996->jack_flips++;
2454 
2455                 if (wm8996->jack_flips > 1) {
2456                         wm8996_report_headphone(codec);
2457                         return;
2458                 }
2459 
2460                 reg = snd_soc_read(codec, WM8996_ACCESSORY_DETECT_MODE_2);
2461                 reg ^= WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC |
2462                         WM8996_MICD_BIAS_SRC;
2463                 snd_soc_update_bits(codec, WM8996_ACCESSORY_DETECT_MODE_2,
2464                                     WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC |
2465                                     WM8996_MICD_BIAS_SRC, reg);
2466 
2467                 if (wm8996->polarity_cb)
2468                         wm8996->polarity_cb(codec,
2469                                             (reg & WM8996_MICD_SRC) != 0);
2470 
2471                 dev_dbg(codec->dev, "Set microphone polarity to %d\n",
2472                         (reg & WM8996_MICD_SRC) != 0);
2473 
2474                 return;
2475         }
2476 
2477         /* Don't distinguish between buttons, just report any low
2478          * impedence as BTN_0.
2479          */
2480         if (val & 0x3fc) {
2481                 if (wm8996->jack_mic) {
2482                         dev_dbg(codec->dev, "Mic button detected\n");
2483                         snd_soc_jack_report(wm8996->jack, SND_JACK_BTN_0,
2484                                             SND_JACK_BTN_0);
2485                 } else if (wm8996->detecting) {
2486                         wm8996_report_headphone(codec);
2487                 }
2488         }
2489 }
2490 
2491 static irqreturn_t wm8996_irq(int irq, void *data)
2492 {
2493         struct snd_soc_codec *codec = data;
2494         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2495         int irq_val;
2496 
2497         irq_val = snd_soc_read(codec, WM8996_INTERRUPT_STATUS_2);
2498         if (irq_val < 0) {
2499                 dev_err(codec->dev, "Failed to read IRQ status: %d\n",
2500                         irq_val);
2501                 return IRQ_NONE;
2502         }
2503         irq_val &= ~snd_soc_read(codec, WM8996_INTERRUPT_STATUS_2_MASK);
2504 
2505         if (!irq_val)
2506                 return IRQ_NONE;
2507 
2508         snd_soc_write(codec, WM8996_INTERRUPT_STATUS_2, irq_val);
2509 
2510         if (irq_val & (WM8996_DCS_DONE_01_EINT | WM8996_DCS_DONE_23_EINT)) {
2511                 dev_dbg(codec->dev, "DC servo IRQ\n");
2512                 complete(&wm8996->dcs_done);
2513         }
2514 
2515         if (irq_val & WM8996_FIFOS_ERR_EINT)
2516                 dev_err(codec->dev, "Digital core FIFO error\n");
2517 
2518         if (irq_val & WM8996_FLL_LOCK_EINT) {
2519                 dev_dbg(codec->dev, "FLL locked\n");
2520                 complete(&wm8996->fll_lock);
2521         }
2522 
2523         if (irq_val & WM8996_MICD_EINT)
2524                 wm8996_micd(codec);
2525 
2526         if (irq_val & WM8996_HP_DONE_EINT)
2527                 wm8996_hpdet_irq(codec);
2528 
2529         return IRQ_HANDLED;
2530 }
2531 
2532 static irqreturn_t wm8996_edge_irq(int irq, void *data)
2533 {
2534         irqreturn_t ret = IRQ_NONE;
2535         irqreturn_t val;
2536 
2537         do {
2538                 val = wm8996_irq(irq, data);
2539                 if (val != IRQ_NONE)
2540                         ret = val;
2541         } while (val != IRQ_NONE);
2542 
2543         return ret;
2544 }
2545 
2546 static void wm8996_retune_mobile_pdata(struct snd_soc_codec *codec)
2547 {
2548         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2549         struct wm8996_pdata *pdata = &wm8996->pdata;
2550 
2551         struct snd_kcontrol_new controls[] = {
2552                 SOC_ENUM_EXT("DSP1 EQ Mode",
2553                              wm8996->retune_mobile_enum,
2554                              wm8996_get_retune_mobile_enum,
2555                              wm8996_put_retune_mobile_enum),
2556                 SOC_ENUM_EXT("DSP2 EQ Mode",
2557                              wm8996->retune_mobile_enum,
2558                              wm8996_get_retune_mobile_enum,
2559                              wm8996_put_retune_mobile_enum),
2560         };
2561         int ret, i, j;
2562         const char **t;
2563 
2564         /* We need an array of texts for the enum API but the number
2565          * of texts is likely to be less than the number of
2566          * configurations due to the sample rate dependency of the
2567          * configurations. */
2568         wm8996->num_retune_mobile_texts = 0;
2569         wm8996->retune_mobile_texts = NULL;
2570         for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
2571                 for (j = 0; j < wm8996->num_retune_mobile_texts; j++) {
2572                         if (strcmp(pdata->retune_mobile_cfgs[i].name,
2573                                    wm8996->retune_mobile_texts[j]) == 0)
2574                                 break;
2575                 }
2576 
2577                 if (j != wm8996->num_retune_mobile_texts)
2578                         continue;
2579 
2580                 /* Expand the array... */
2581                 t = krealloc(wm8996->retune_mobile_texts,
2582                              sizeof(char *) * 
2583                              (wm8996->num_retune_mobile_texts + 1),
2584                              GFP_KERNEL);
2585                 if (t == NULL)
2586                         continue;
2587 
2588                 /* ...store the new entry... */
2589                 t[wm8996->num_retune_mobile_texts] = 
2590                         pdata->retune_mobile_cfgs[i].name;
2591 
2592                 /* ...and remember the new version. */
2593                 wm8996->num_retune_mobile_texts++;
2594                 wm8996->retune_mobile_texts = t;
2595         }
2596 
2597         dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n",
2598                 wm8996->num_retune_mobile_texts);
2599 
2600         wm8996->retune_mobile_enum.items = wm8996->num_retune_mobile_texts;
2601         wm8996->retune_mobile_enum.texts = wm8996->retune_mobile_texts;
2602 
2603         ret = snd_soc_add_codec_controls(codec, controls, ARRAY_SIZE(controls));
2604         if (ret != 0)
2605                 dev_err(codec->dev,
2606                         "Failed to add ReTune Mobile controls: %d\n", ret);
2607 }
2608 
2609 static const struct regmap_config wm8996_regmap = {
2610         .reg_bits = 16,
2611         .val_bits = 16,
2612 
2613         .max_register = WM8996_MAX_REGISTER,
2614         .reg_defaults = wm8996_reg,
2615         .num_reg_defaults = ARRAY_SIZE(wm8996_reg),
2616         .volatile_reg = wm8996_volatile_register,
2617         .readable_reg = wm8996_readable_register,
2618         .cache_type = REGCACHE_RBTREE,
2619 };
2620 
2621 static int wm8996_probe(struct snd_soc_codec *codec)
2622 {
2623         int ret;
2624         struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
2625         struct i2c_client *i2c = to_i2c_client(codec->dev);
2626         int irq_flags;
2627 
2628         wm8996->codec = codec;
2629 
2630         init_completion(&wm8996->dcs_done);
2631         init_completion(&wm8996->fll_lock);
2632 
2633         if (wm8996->pdata.num_retune_mobile_cfgs)
2634                 wm8996_retune_mobile_pdata(codec);
2635         else
2636                 snd_soc_add_codec_controls(codec, wm8996_eq_controls,
2637                                      ARRAY_SIZE(wm8996_eq_controls));
2638 
2639         if (i2c->irq) {
2640                 if (wm8996->pdata.irq_flags)
2641                         irq_flags = wm8996->pdata.irq_flags;
2642                 else
2643                         irq_flags = IRQF_TRIGGER_LOW;
2644 
2645                 irq_flags |= IRQF_ONESHOT;
2646 
2647                 if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
2648                         ret = request_threaded_irq(i2c->irq, NULL,
2649                                                    wm8996_edge_irq,
2650                                                    irq_flags, "wm8996", codec);
2651                 else
2652                         ret = request_threaded_irq(i2c->irq, NULL, wm8996_irq,
2653                                                    irq_flags, "wm8996", codec);
2654 
2655                 if (ret == 0) {
2656                         /* Unmask the interrupt */
2657                         snd_soc_update_bits(codec, WM8996_INTERRUPT_CONTROL,
2658                                             WM8996_IM_IRQ, 0);
2659 
2660                         /* Enable error reporting and DC servo status */
2661                         snd_soc_update_bits(codec,
2662                                             WM8996_INTERRUPT_STATUS_2_MASK,
2663                                             WM8996_IM_DCS_DONE_23_EINT |
2664                                             WM8996_IM_DCS_DONE_01_EINT |
2665                                             WM8996_IM_FLL_LOCK_EINT |
2666                                             WM8996_IM_FIFOS_ERR_EINT,
2667                                             0);
2668                 } else {
2669                         dev_err(codec->dev, "Failed to request IRQ: %d\n",
2670                                 ret);
2671                         return ret;
2672                 }
2673         }
2674 
2675         return 0;
2676 }
2677 
2678 static int wm8996_remove(struct snd_soc_codec *codec)
2679 {
2680         struct i2c_client *i2c = to_i2c_client(codec->dev);
2681 
2682         snd_soc_update_bits(codec, WM8996_INTERRUPT_CONTROL,
2683                             WM8996_IM_IRQ, WM8996_IM_IRQ);
2684 
2685         if (i2c->irq)
2686                 free_irq(i2c->irq, codec);
2687 
2688         return 0;
2689 }
2690 
2691 static struct snd_soc_codec_driver soc_codec_dev_wm8996 = {
2692         .probe =        wm8996_probe,
2693         .remove =       wm8996_remove,
2694         .set_bias_level = wm8996_set_bias_level,
2695         .idle_bias_off  = true,
2696         .seq_notifier = wm8996_seq_notifier,
2697         .controls = wm8996_snd_controls,
2698         .num_controls = ARRAY_SIZE(wm8996_snd_controls),
2699         .dapm_widgets = wm8996_dapm_widgets,
2700         .num_dapm_widgets = ARRAY_SIZE(wm8996_dapm_widgets),
2701         .dapm_routes = wm8996_dapm_routes,
2702         .num_dapm_routes = ARRAY_SIZE(wm8996_dapm_routes),
2703         .set_pll = wm8996_set_fll,
2704 };
2705 
2706 #define WM8996_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
2707                       SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
2708                       SNDRV_PCM_RATE_48000)
2709 #define WM8996_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
2710                         SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |\
2711                         SNDRV_PCM_FMTBIT_S32_LE)
2712 
2713 static const struct snd_soc_dai_ops wm8996_dai_ops = {
2714         .set_fmt = wm8996_set_fmt,
2715         .hw_params = wm8996_hw_params,
2716         .set_sysclk = wm8996_set_sysclk,
2717 };
2718 
2719 static struct snd_soc_dai_driver wm8996_dai[] = {
2720         {
2721                 .name = "wm8996-aif1",
2722                 .playback = {
2723                         .stream_name = "AIF1 Playback",
2724                         .channels_min = 1,
2725                         .channels_max = 6,
2726                         .rates = WM8996_RATES,
2727                         .formats = WM8996_FORMATS,
2728                         .sig_bits = 24,
2729                 },
2730                 .capture = {
2731                          .stream_name = "AIF1 Capture",
2732                          .channels_min = 1,
2733                          .channels_max = 6,
2734                          .rates = WM8996_RATES,
2735                          .formats = WM8996_FORMATS,
2736                          .sig_bits = 24,
2737                  },
2738                 .ops = &wm8996_dai_ops,
2739         },
2740         {
2741                 .name = "wm8996-aif2",
2742                 .playback = {
2743                         .stream_name = "AIF2 Playback",
2744                         .channels_min = 1,
2745                         .channels_max = 2,
2746                         .rates = WM8996_RATES,
2747                         .formats = WM8996_FORMATS,
2748                         .sig_bits = 24,
2749                 },
2750                 .capture = {
2751                          .stream_name = "AIF2 Capture",
2752                          .channels_min = 1,
2753                          .channels_max = 2,
2754                          .rates = WM8996_RATES,
2755                          .formats = WM8996_FORMATS,
2756                         .sig_bits = 24,
2757                  },
2758                 .ops = &wm8996_dai_ops,
2759         },
2760 };
2761 
2762 static int wm8996_i2c_probe(struct i2c_client *i2c,
2763                             const struct i2c_device_id *id)
2764 {
2765         struct wm8996_priv *wm8996;
2766         int ret, i;
2767         unsigned int reg;
2768 
2769         wm8996 = devm_kzalloc(&i2c->dev, sizeof(struct wm8996_priv),
2770                               GFP_KERNEL);
2771         if (wm8996 == NULL)
2772                 return -ENOMEM;
2773 
2774         i2c_set_clientdata(i2c, wm8996);
2775         wm8996->dev = &i2c->dev;
2776 
2777         if (dev_get_platdata(&i2c->dev))
2778                 memcpy(&wm8996->pdata, dev_get_platdata(&i2c->dev),
2779                        sizeof(wm8996->pdata));
2780 
2781         if (wm8996->pdata.ldo_ena > 0) {
2782                 ret = gpio_request_one(wm8996->pdata.ldo_ena,
2783                                        GPIOF_OUT_INIT_LOW, "WM8996 ENA");
2784                 if (ret < 0) {
2785                         dev_err(&i2c->dev, "Failed to request GPIO %d: %d\n",
2786                                 wm8996->pdata.ldo_ena, ret);
2787                         goto err;
2788                 }
2789         }
2790 
2791         for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++)
2792                 wm8996->supplies[i].supply = wm8996_supply_names[i];
2793 
2794         ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8996->supplies),
2795                                       wm8996->supplies);
2796         if (ret != 0) {
2797                 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
2798                 goto err_gpio;
2799         }
2800 
2801         wm8996->disable_nb[0].notifier_call = wm8996_regulator_event_0;
2802         wm8996->disable_nb[1].notifier_call = wm8996_regulator_event_1;
2803         wm8996->disable_nb[2].notifier_call = wm8996_regulator_event_2;
2804 
2805         /* This should really be moved into the regulator core */
2806         for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) {
2807                 ret = regulator_register_notifier(wm8996->supplies[i].consumer,
2808                                                   &wm8996->disable_nb[i]);
2809                 if (ret != 0) {
2810                         dev_err(&i2c->dev,
2811                                 "Failed to register regulator notifier: %d\n",
2812                                 ret);
2813                 }
2814         }
2815 
2816         ret = regulator_bulk_enable(ARRAY_SIZE(wm8996->supplies),
2817                                     wm8996->supplies);
2818         if (ret != 0) {
2819                 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
2820                 goto err_gpio;
2821         }
2822 
2823         if (wm8996->pdata.ldo_ena > 0) {
2824                 gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 1);
2825                 msleep(5);
2826         }
2827 
2828         wm8996->regmap = devm_regmap_init_i2c(i2c, &wm8996_regmap);
2829         if (IS_ERR(wm8996->regmap)) {
2830                 ret = PTR_ERR(wm8996->regmap);
2831                 dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
2832                 goto err_enable;
2833         }
2834 
2835         ret = regmap_read(wm8996->regmap, WM8996_SOFTWARE_RESET, &reg);
2836         if (ret < 0) {
2837                 dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret);
2838                 goto err_regmap;
2839         }
2840         if (reg != 0x8915) {
2841                 dev_err(&i2c->dev, "Device is not a WM8996, ID %x\n", reg);
2842                 ret = -EINVAL;
2843                 goto err_regmap;
2844         }
2845 
2846         ret = regmap_read(wm8996->regmap, WM8996_CHIP_REVISION, &reg);
2847         if (ret < 0) {
2848                 dev_err(&i2c->dev, "Failed to read device revision: %d\n",
2849                         ret);
2850                 goto err_regmap;
2851         }
2852 
2853         dev_info(&i2c->dev, "revision %c\n",
2854                  (reg & WM8996_CHIP_REV_MASK) + 'A');
2855 
2856         if (wm8996->pdata.ldo_ena > 0) {
2857                 gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
2858                 regcache_cache_only(wm8996->regmap, true);
2859         } else {
2860                 ret = regmap_write(wm8996->regmap, WM8996_SOFTWARE_RESET,
2861                                    0x8915);
2862                 if (ret != 0) {
2863                         dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
2864                         goto err_regmap;
2865                 }
2866         }
2867 
2868         regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies);
2869 
2870         /* Apply platform data settings */
2871         regmap_update_bits(wm8996->regmap, WM8996_LINE_INPUT_CONTROL,
2872                            WM8996_INL_MODE_MASK | WM8996_INR_MODE_MASK,
2873                            wm8996->pdata.inl_mode << WM8996_INL_MODE_SHIFT |
2874                            wm8996->pdata.inr_mode);
2875 
2876         for (i = 0; i < ARRAY_SIZE(wm8996->pdata.gpio_default); i++) {
2877                 if (!wm8996->pdata.gpio_default[i])
2878                         continue;
2879 
2880                 regmap_write(wm8996->regmap, WM8996_GPIO_1 + i,
2881                              wm8996->pdata.gpio_default[i] & 0xffff);
2882         }
2883 
2884         if (wm8996->pdata.spkmute_seq)
2885                 regmap_update_bits(wm8996->regmap,
2886                                    WM8996_PDM_SPEAKER_MUTE_SEQUENCE,
2887                                    WM8996_SPK_MUTE_ENDIAN |
2888                                    WM8996_SPK_MUTE_SEQ1_MASK,
2889                                    wm8996->pdata.spkmute_seq);
2890 
2891         regmap_update_bits(wm8996->regmap, WM8996_ACCESSORY_DETECT_MODE_2,
2892                            WM8996_MICD_BIAS_SRC | WM8996_HPOUT1FB_SRC |
2893                            WM8996_MICD_SRC, wm8996->pdata.micdet_def);
2894 
2895         /* Latch volume update bits */
2896         regmap_update_bits(wm8996->regmap, WM8996_LEFT_LINE_INPUT_VOLUME,
2897                            WM8996_IN1_VU, WM8996_IN1_VU);
2898         regmap_update_bits(wm8996->regmap, WM8996_RIGHT_LINE_INPUT_VOLUME,
2899                            WM8996_IN1_VU, WM8996_IN1_VU);
2900 
2901         regmap_update_bits(wm8996->regmap, WM8996_DAC1_LEFT_VOLUME,
2902                            WM8996_DAC1_VU, WM8996_DAC1_VU);
2903         regmap_update_bits(wm8996->regmap, WM8996_DAC1_RIGHT_VOLUME,
2904                            WM8996_DAC1_VU, WM8996_DAC1_VU);
2905         regmap_update_bits(wm8996->regmap, WM8996_DAC2_LEFT_VOLUME,
2906                            WM8996_DAC2_VU, WM8996_DAC2_VU);
2907         regmap_update_bits(wm8996->regmap, WM8996_DAC2_RIGHT_VOLUME,
2908                            WM8996_DAC2_VU, WM8996_DAC2_VU);
2909 
2910         regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_LEFT_VOLUME,
2911                            WM8996_DAC1_VU, WM8996_DAC1_VU);
2912         regmap_update_bits(wm8996->regmap, WM8996_OUTPUT1_RIGHT_VOLUME,
2913                            WM8996_DAC1_VU, WM8996_DAC1_VU);
2914         regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_LEFT_VOLUME,
2915                            WM8996_DAC2_VU, WM8996_DAC2_VU);
2916         regmap_update_bits(wm8996->regmap, WM8996_OUTPUT2_RIGHT_VOLUME,
2917                            WM8996_DAC2_VU, WM8996_DAC2_VU);
2918 
2919         regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_LEFT_VOLUME,
2920                            WM8996_DSP1TX_VU, WM8996_DSP1TX_VU);
2921         regmap_update_bits(wm8996->regmap, WM8996_DSP1_TX_RIGHT_VOLUME,
2922                            WM8996_DSP1TX_VU, WM8996_DSP1TX_VU);
2923         regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_LEFT_VOLUME,
2924                            WM8996_DSP2TX_VU, WM8996_DSP2TX_VU);
2925         regmap_update_bits(wm8996->regmap, WM8996_DSP2_TX_RIGHT_VOLUME,
2926                            WM8996_DSP2TX_VU, WM8996_DSP2TX_VU);
2927 
2928         regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_LEFT_VOLUME,
2929                            WM8996_DSP1RX_VU, WM8996_DSP1RX_VU);
2930         regmap_update_bits(wm8996->regmap, WM8996_DSP1_RX_RIGHT_VOLUME,
2931                            WM8996_DSP1RX_VU, WM8996_DSP1RX_VU);
2932         regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_LEFT_VOLUME,
2933                            WM8996_DSP2RX_VU, WM8996_DSP2RX_VU);
2934         regmap_update_bits(wm8996->regmap, WM8996_DSP2_RX_RIGHT_VOLUME,
2935                            WM8996_DSP2RX_VU, WM8996_DSP2RX_VU);
2936 
2937         /* No support currently for the underclocked TDM modes and
2938          * pick a default TDM layout with each channel pair working with
2939          * slots 0 and 1. */
2940         regmap_update_bits(wm8996->regmap,
2941                            WM8996_AIF1RX_CHANNEL_0_CONFIGURATION,
2942                            WM8996_AIF1RX_CHAN0_SLOTS_MASK |
2943                            WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2944                            1 << WM8996_AIF1RX_CHAN0_SLOTS_SHIFT | 0);
2945         regmap_update_bits(wm8996->regmap,
2946                            WM8996_AIF1RX_CHANNEL_1_CONFIGURATION,
2947                            WM8996_AIF1RX_CHAN1_SLOTS_MASK |
2948                            WM8996_AIF1RX_CHAN1_START_SLOT_MASK,
2949                            1 << WM8996_AIF1RX_CHAN1_SLOTS_SHIFT | 1);
2950         regmap_update_bits(wm8996->regmap,
2951                            WM8996_AIF1RX_CHANNEL_2_CONFIGURATION,
2952                            WM8996_AIF1RX_CHAN2_SLOTS_MASK |
2953                            WM8996_AIF1RX_CHAN2_START_SLOT_MASK,
2954                            1 << WM8996_AIF1RX_CHAN2_SLOTS_SHIFT | 0);
2955         regmap_update_bits(wm8996->regmap,
2956                            WM8996_AIF1RX_CHANNEL_3_CONFIGURATION,
2957                            WM8996_AIF1RX_CHAN3_SLOTS_MASK |
2958                            WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2959                            1 << WM8996_AIF1RX_CHAN3_SLOTS_SHIFT | 1);
2960         regmap_update_bits(wm8996->regmap,
2961                            WM8996_AIF1RX_CHANNEL_4_CONFIGURATION,
2962                            WM8996_AIF1RX_CHAN4_SLOTS_MASK |
2963                            WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2964                            1 << WM8996_AIF1RX_CHAN4_SLOTS_SHIFT | 0);
2965         regmap_update_bits(wm8996->regmap,
2966                            WM8996_AIF1RX_CHANNEL_5_CONFIGURATION,
2967                            WM8996_AIF1RX_CHAN5_SLOTS_MASK |
2968                            WM8996_AIF1RX_CHAN0_START_SLOT_MASK,
2969                            1 << WM8996_AIF1RX_CHAN5_SLOTS_SHIFT | 1);
2970 
2971         regmap_update_bits(wm8996->regmap,
2972                            WM8996_AIF2RX_CHANNEL_0_CONFIGURATION,
2973                            WM8996_AIF2RX_CHAN0_SLOTS_MASK |
2974                            WM8996_AIF2RX_CHAN0_START_SLOT_MASK,
2975                            1 << WM8996_AIF2RX_CHAN0_SLOTS_SHIFT | 0);
2976         regmap_update_bits(wm8996->regmap,
2977                            WM8996_AIF2RX_CHANNEL_1_CONFIGURATION,
2978                            WM8996_AIF2RX_CHAN1_SLOTS_MASK |
2979                            WM8996_AIF2RX_CHAN1_START_SLOT_MASK,
2980                            1 << WM8996_AIF2RX_CHAN1_SLOTS_SHIFT | 1);
2981 
2982         regmap_update_bits(wm8996->regmap,
2983                            WM8996_AIF1TX_CHANNEL_0_CONFIGURATION,
2984                            WM8996_AIF1TX_CHAN0_SLOTS_MASK |
2985                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2986                            1 << WM8996_AIF1TX_CHAN0_SLOTS_SHIFT | 0);
2987         regmap_update_bits(wm8996->regmap,
2988                            WM8996_AIF1TX_CHANNEL_1_CONFIGURATION,
2989                            WM8996_AIF1TX_CHAN1_SLOTS_MASK |
2990                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2991                            1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1);
2992         regmap_update_bits(wm8996->regmap,
2993                            WM8996_AIF1TX_CHANNEL_2_CONFIGURATION,
2994                            WM8996_AIF1TX_CHAN2_SLOTS_MASK |
2995                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
2996                            1 << WM8996_AIF1TX_CHAN2_SLOTS_SHIFT | 0);
2997         regmap_update_bits(wm8996->regmap,
2998                            WM8996_AIF1TX_CHANNEL_3_CONFIGURATION,
2999                            WM8996_AIF1TX_CHAN3_SLOTS_MASK |
3000                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
3001                            1 << WM8996_AIF1TX_CHAN3_SLOTS_SHIFT | 1);
3002         regmap_update_bits(wm8996->regmap,
3003                            WM8996_AIF1TX_CHANNEL_4_CONFIGURATION,
3004                            WM8996_AIF1TX_CHAN4_SLOTS_MASK |
3005                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
3006                            1 << WM8996_AIF1TX_CHAN4_SLOTS_SHIFT | 0);
3007         regmap_update_bits(wm8996->regmap,
3008                            WM8996_AIF1TX_CHANNEL_5_CONFIGURATION,
3009                            WM8996_AIF1TX_CHAN5_SLOTS_MASK |
3010                            WM8996_AIF1TX_CHAN0_START_SLOT_MASK,
3011                            1 << WM8996_AIF1TX_CHAN5_SLOTS_SHIFT | 1);
3012 
3013         regmap_update_bits(wm8996->regmap,
3014                            WM8996_AIF2TX_CHANNEL_0_CONFIGURATION,
3015                            WM8996_AIF2TX_CHAN0_SLOTS_MASK |
3016                            WM8996_AIF2TX_CHAN0_START_SLOT_MASK,
3017                            1 << WM8996_AIF2TX_CHAN0_SLOTS_SHIFT | 0);
3018         regmap_update_bits(wm8996->regmap,
3019                            WM8996_AIF1TX_CHANNEL_1_CONFIGURATION,
3020                            WM8996_AIF2TX_CHAN1_SLOTS_MASK |
3021                            WM8996_AIF2TX_CHAN1_START_SLOT_MASK,
3022                            1 << WM8996_AIF1TX_CHAN1_SLOTS_SHIFT | 1);
3023 
3024         /* If the TX LRCLK pins are not in LRCLK mode configure the
3025          * AIFs to source their clocks from the RX LRCLKs.
3026          */
3027         ret = regmap_read(wm8996->regmap, WM8996_GPIO_1, &reg);
3028         if (ret != 0) {
3029                 dev_err(&i2c->dev, "Failed to read GPIO1: %d\n", ret);
3030                 goto err_regmap;
3031         }
3032 
3033         if (reg & WM8996_GP1_FN_MASK)
3034                 regmap_update_bits(wm8996->regmap, WM8996_AIF1_TX_LRCLK_2,
3035                                    WM8996_AIF1TX_LRCLK_MODE,
3036                                    WM8996_AIF1TX_LRCLK_MODE);
3037 
3038         ret = regmap_read(wm8996->regmap, WM8996_GPIO_2, &reg);
3039         if (ret != 0) {
3040                 dev_err(&i2c->dev, "Failed to read GPIO2: %d\n", ret);
3041                 goto err_regmap;
3042         }
3043 
3044         if (reg & WM8996_GP2_FN_MASK)
3045                 regmap_update_bits(wm8996->regmap, WM8996_AIF2_TX_LRCLK_2,
3046                                    WM8996_AIF2TX_LRCLK_MODE,
3047                                    WM8996_AIF2TX_LRCLK_MODE);
3048 
3049         wm8996_init_gpio(wm8996);
3050 
3051         ret = snd_soc_register_codec(&i2c->dev,
3052                                      &soc_codec_dev_wm8996, wm8996_dai,
3053                                      ARRAY_SIZE(wm8996_dai));
3054         if (ret < 0)
3055                 goto err_gpiolib;
3056 
3057         return ret;
3058 
3059 err_gpiolib:
3060         wm8996_free_gpio(wm8996);
3061 err_regmap:
3062 err_enable:
3063         if (wm8996->pdata.ldo_ena > 0)
3064                 gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
3065         regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies);
3066 err_gpio:
3067         if (wm8996->pdata.ldo_ena > 0)
3068                 gpio_free(wm8996->pdata.ldo_ena);
3069 err:
3070 
3071         return ret;
3072 }
3073 
3074 static int wm8996_i2c_remove(struct i2c_client *client)
3075 {
3076         struct wm8996_priv *wm8996 = i2c_get_clientdata(client);
3077         int i;
3078 
3079         snd_soc_unregister_codec(&client->dev);
3080         wm8996_free_gpio(wm8996);
3081         if (wm8996->pdata.ldo_ena > 0) {
3082                 gpio_set_value_cansleep(wm8996->pdata.ldo_ena, 0);
3083                 gpio_free(wm8996->pdata.ldo_ena);
3084         }
3085         for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++)
3086                 regulator_unregister_notifier(wm8996->supplies[i].consumer,
3087                                               &wm8996->disable_nb[i]);
3088 
3089         return 0;
3090 }
3091 
3092 static const struct i2c_device_id wm8996_i2c_id[] = {
3093         { "wm8996", 0 },
3094         { }
3095 };
3096 MODULE_DEVICE_TABLE(i2c, wm8996_i2c_id);
3097 
3098 static struct i2c_driver wm8996_i2c_driver = {
3099         .driver = {
3100                 .name = "wm8996",
3101         },
3102         .probe =    wm8996_i2c_probe,
3103         .remove =   wm8996_i2c_remove,
3104         .id_table = wm8996_i2c_id,
3105 };
3106 
3107 module_i2c_driver(wm8996_i2c_driver);
3108 
3109 MODULE_DESCRIPTION("ASoC WM8996 driver");
3110 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
3111 MODULE_LICENSE("GPL");
3112 

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