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40e0aa64 RP |
1 | /* |
2 | * wm8731.c -- WM8731 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2005 Openedhand Ltd. | |
656baaeb | 5 | * Copyright 2006-12 Wolfson Microelectronics, plc |
40e0aa64 RP |
6 | * |
7 | * Author: Richard Purdie <richard@openedhand.com> | |
8 | * | |
9 | * Based on wm8753.c by Liam Girdwood | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/i2c.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
05d448e2 | 23 | #include <linux/regmap.h> |
7dea7c01 | 24 | #include <linux/regulator/consumer.h> |
d2a40355 | 25 | #include <linux/spi/spi.h> |
a7f96e4d | 26 | #include <linux/of_device.h> |
a51ff30f | 27 | #include <linux/mutex.h> |
99d42234 | 28 | #include <linux/clk.h> |
40e0aa64 RP |
29 | #include <sound/core.h> |
30 | #include <sound/pcm.h> | |
31 | #include <sound/pcm_params.h> | |
32 | #include <sound/soc.h> | |
40e0aa64 | 33 | #include <sound/initval.h> |
d00efa64 | 34 | #include <sound/tlv.h> |
40e0aa64 RP |
35 | |
36 | #include "wm8731.h" | |
37 | ||
7dea7c01 MB |
38 | #define WM8731_NUM_SUPPLIES 4 |
39 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
40 | "AVDD", | |
41 | "HPVDD", | |
42 | "DCVDD", | |
43 | "DBVDD", | |
44 | }; | |
45 | ||
b36d61d4 FM |
46 | /* codec private data */ |
47 | struct wm8731_priv { | |
05d448e2 | 48 | struct regmap *regmap; |
99d42234 | 49 | struct clk *mclk; |
7dea7c01 | 50 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
0890c2b7 | 51 | const struct snd_pcm_hw_constraint_list *constraints; |
b36d61d4 | 52 | unsigned int sysclk; |
9745e824 | 53 | int sysclk_type; |
dd31b310 MB |
54 | int playback_fs; |
55 | bool deemph; | |
a51ff30f LPC |
56 | |
57 | struct mutex lock; | |
b36d61d4 FM |
58 | }; |
59 | ||
a8035c8f | 60 | |
40e0aa64 RP |
61 | /* |
62 | * wm8731 register cache | |
40e0aa64 | 63 | */ |
05d448e2 MB |
64 | static const struct reg_default wm8731_reg_defaults[] = { |
65 | { 0, 0x0097 }, | |
66 | { 1, 0x0097 }, | |
67 | { 2, 0x0079 }, | |
68 | { 3, 0x0079 }, | |
69 | { 4, 0x000a }, | |
70 | { 5, 0x0008 }, | |
71 | { 6, 0x009f }, | |
72 | { 7, 0x000a }, | |
73 | { 8, 0x0000 }, | |
74 | { 9, 0x0000 }, | |
40e0aa64 RP |
75 | }; |
76 | ||
05d448e2 MB |
77 | static bool wm8731_volatile(struct device *dev, unsigned int reg) |
78 | { | |
79 | return reg == WM8731_RESET; | |
80 | } | |
81 | ||
6702dfcc | 82 | #define wm8731_reset(m) regmap_write(m, WM8731_RESET, 0) |
40e0aa64 RP |
83 | |
84 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
59f72970 | 85 | |
9e74b14a TI |
86 | static SOC_ENUM_SINGLE_DECL(wm8731_insel_enum, |
87 | WM8731_APANA, 2, wm8731_input_select); | |
59f72970 | 88 | |
dd31b310 MB |
89 | static int wm8731_deemph[] = { 0, 32000, 44100, 48000 }; |
90 | ||
91 | static int wm8731_set_deemph(struct snd_soc_codec *codec) | |
92 | { | |
93 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
94 | int val, i, best; | |
95 | ||
96 | /* If we're using deemphasis select the nearest available sample | |
97 | * rate. | |
98 | */ | |
99 | if (wm8731->deemph) { | |
100 | best = 1; | |
101 | for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) { | |
102 | if (abs(wm8731_deemph[i] - wm8731->playback_fs) < | |
103 | abs(wm8731_deemph[best] - wm8731->playback_fs)) | |
104 | best = i; | |
105 | } | |
106 | ||
107 | val = best << 1; | |
108 | } else { | |
109 | best = 0; | |
110 | val = 0; | |
111 | } | |
112 | ||
113 | dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n", | |
114 | best, wm8731_deemph[best]); | |
115 | ||
116 | return snd_soc_update_bits(codec, WM8731_APDIGI, 0x6, val); | |
117 | } | |
118 | ||
119 | static int wm8731_get_deemph(struct snd_kcontrol *kcontrol, | |
120 | struct snd_ctl_elem_value *ucontrol) | |
121 | { | |
ea53bf77 | 122 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
dd31b310 MB |
123 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
124 | ||
bd14016f | 125 | ucontrol->value.integer.value[0] = wm8731->deemph; |
dd31b310 MB |
126 | |
127 | return 0; | |
128 | } | |
129 | ||
130 | static int wm8731_put_deemph(struct snd_kcontrol *kcontrol, | |
131 | struct snd_ctl_elem_value *ucontrol) | |
132 | { | |
ea53bf77 | 133 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
dd31b310 | 134 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
523bade2 | 135 | unsigned int deemph = ucontrol->value.integer.value[0]; |
dd31b310 MB |
136 | int ret = 0; |
137 | ||
138 | if (deemph > 1) | |
139 | return -EINVAL; | |
140 | ||
a51ff30f | 141 | mutex_lock(&wm8731->lock); |
dd31b310 MB |
142 | if (wm8731->deemph != deemph) { |
143 | wm8731->deemph = deemph; | |
59f72970 | 144 | |
dd31b310 MB |
145 | wm8731_set_deemph(codec); |
146 | ||
147 | ret = 1; | |
148 | } | |
a51ff30f | 149 | mutex_unlock(&wm8731->lock); |
dd31b310 MB |
150 | |
151 | return ret; | |
152 | } | |
40e0aa64 | 153 | |
d00efa64 MB |
154 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
155 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
156 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
d921184e | 157 | static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0); |
d00efa64 | 158 | |
40e0aa64 RP |
159 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
160 | ||
d00efa64 MB |
161 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
162 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
163 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
164 | 7, 1, 0), | |
40e0aa64 | 165 | |
d00efa64 MB |
166 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
167 | in_tlv), | |
40e0aa64 RP |
168 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
169 | ||
d921184e | 170 | SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv), |
ef38ed88 | 171 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 172 | |
d00efa64 MB |
173 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
174 | sidetone_tlv), | |
40e0aa64 RP |
175 | |
176 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
177 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
178 | ||
dd31b310 MB |
179 | SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, |
180 | wm8731_get_deemph, wm8731_put_deemph), | |
40e0aa64 RP |
181 | }; |
182 | ||
40e0aa64 RP |
183 | /* Output Mixer */ |
184 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
185 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
186 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
187 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
188 | }; | |
189 | ||
190 | /* Input mux */ | |
191 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
59f72970 | 192 | SOC_DAPM_ENUM("Input Select", wm8731_insel_enum); |
40e0aa64 RP |
193 | |
194 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
8a27bd9a | 195 | SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 0, NULL, 0), |
9745e824 | 196 | SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0), |
40e0aa64 RP |
197 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, |
198 | &wm8731_output_mixer_controls[0], | |
199 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
200 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
201 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
202 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
203 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
204 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
205 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
206 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
207 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
208 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
209 | SND_SOC_DAPM_INPUT("MICIN"), | |
210 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
211 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
212 | }; | |
213 | ||
9745e824 MB |
214 | static int wm8731_check_osc(struct snd_soc_dapm_widget *source, |
215 | struct snd_soc_dapm_widget *sink) | |
216 | { | |
d286b805 LPC |
217 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm); |
218 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
9745e824 | 219 | |
5a195b44 | 220 | return wm8731->sysclk_type == WM8731_SYSCLK_XTAL; |
9745e824 MB |
221 | } |
222 | ||
5e251aec | 223 | static const struct snd_soc_dapm_route wm8731_intercon[] = { |
9745e824 MB |
224 | {"DAC", NULL, "OSC", wm8731_check_osc}, |
225 | {"ADC", NULL, "OSC", wm8731_check_osc}, | |
8a27bd9a MB |
226 | {"DAC", NULL, "ACTIVE"}, |
227 | {"ADC", NULL, "ACTIVE"}, | |
9745e824 | 228 | |
40e0aa64 RP |
229 | /* output mixer */ |
230 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
231 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
232 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
233 | ||
234 | /* outputs */ | |
235 | {"RHPOUT", NULL, "Output Mixer"}, | |
236 | {"ROUT", NULL, "Output Mixer"}, | |
237 | {"LHPOUT", NULL, "Output Mixer"}, | |
238 | {"LOUT", NULL, "Output Mixer"}, | |
239 | ||
240 | /* input mux */ | |
241 | {"Input Mux", "Line In", "Line Input"}, | |
242 | {"Input Mux", "Mic", "Mic Bias"}, | |
243 | {"ADC", NULL, "Input Mux"}, | |
244 | ||
245 | /* inputs */ | |
246 | {"Line Input", NULL, "LLINEIN"}, | |
247 | {"Line Input", NULL, "RLINEIN"}, | |
248 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
249 | }; |
250 | ||
40e0aa64 RP |
251 | struct _coeff_div { |
252 | u32 mclk; | |
253 | u32 rate; | |
254 | u16 fs; | |
255 | u8 sr:4; | |
256 | u8 bosr:1; | |
257 | u8 usb:1; | |
258 | }; | |
259 | ||
260 | /* codec mclk clock divider coefficients */ | |
261 | static const struct _coeff_div coeff_div[] = { | |
262 | /* 48k */ | |
263 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
264 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
265 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
266 | ||
267 | /* 32k */ | |
268 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
269 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 270 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
271 | |
272 | /* 8k */ | |
273 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
274 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
275 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
276 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
277 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
278 | ||
279 | /* 96k */ | |
280 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
281 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
282 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
283 | ||
284 | /* 44.1k */ | |
285 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
286 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
287 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
288 | ||
289 | /* 88.2k */ | |
290 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
291 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
292 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
293 | }; | |
294 | ||
0890c2b7 RG |
295 | /* rates constraints */ |
296 | static const unsigned int wm8731_rates_12000000[] = { | |
297 | 8000, 32000, 44100, 48000, 96000, 88200, | |
298 | }; | |
299 | ||
300 | static const unsigned int wm8731_rates_12288000_18432000[] = { | |
301 | 8000, 32000, 48000, 96000, | |
302 | }; | |
303 | ||
304 | static const unsigned int wm8731_rates_11289600_16934400[] = { | |
305 | 8000, 44100, 88200, | |
306 | }; | |
307 | ||
308 | static const struct snd_pcm_hw_constraint_list wm8731_constraints_12000000 = { | |
309 | .list = wm8731_rates_12000000, | |
310 | .count = ARRAY_SIZE(wm8731_rates_12000000), | |
311 | }; | |
312 | ||
313 | static const | |
314 | struct snd_pcm_hw_constraint_list wm8731_constraints_12288000_18432000 = { | |
315 | .list = wm8731_rates_12288000_18432000, | |
316 | .count = ARRAY_SIZE(wm8731_rates_12288000_18432000), | |
317 | }; | |
318 | ||
319 | static const | |
320 | struct snd_pcm_hw_constraint_list wm8731_constraints_11289600_16934400 = { | |
321 | .list = wm8731_rates_11289600_16934400, | |
322 | .count = ARRAY_SIZE(wm8731_rates_11289600_16934400), | |
323 | }; | |
324 | ||
40e0aa64 RP |
325 | static inline int get_coeff(int mclk, int rate) |
326 | { | |
327 | int i; | |
328 | ||
329 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
330 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
331 | return i; | |
332 | } | |
333 | return 0; | |
334 | } | |
335 | ||
b36d61d4 | 336 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
337 | struct snd_pcm_hw_params *params, |
338 | struct snd_soc_dai *dai) | |
40e0aa64 | 339 | { |
f0fba2ad | 340 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 341 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 342 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
343 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
344 | u16 srate = (coeff_div[i].sr << 2) | | |
345 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 346 | |
dd31b310 MB |
347 | wm8731->playback_fs = params_rate(params); |
348 | ||
17a52fd6 | 349 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
350 | |
351 | /* bit size */ | |
dfb6778e MB |
352 | switch (params_width(params)) { |
353 | case 16: | |
b36d61d4 | 354 | break; |
dfb6778e | 355 | case 20: |
b36d61d4 FM |
356 | iface |= 0x0004; |
357 | break; | |
dfb6778e | 358 | case 24: |
b36d61d4 FM |
359 | iface |= 0x0008; |
360 | break; | |
361 | } | |
40e0aa64 | 362 | |
dd31b310 MB |
363 | wm8731_set_deemph(codec); |
364 | ||
17a52fd6 | 365 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 366 | return 0; |
40e0aa64 RP |
367 | } |
368 | ||
e550e17f | 369 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
370 | { |
371 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 372 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
373 | |
374 | if (mute) | |
17a52fd6 | 375 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 376 | else |
17a52fd6 | 377 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
378 | return 0; |
379 | } | |
380 | ||
e550e17f | 381 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
382 | int clk_id, unsigned int freq, int dir) |
383 | { | |
384 | struct snd_soc_codec *codec = codec_dai->codec; | |
fc31fda6 | 385 | struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); |
b2c812e2 | 386 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 | 387 | |
9745e824 MB |
388 | switch (clk_id) { |
389 | case WM8731_SYSCLK_XTAL: | |
390 | case WM8731_SYSCLK_MCLK: | |
99d42234 SW |
391 | if (wm8731->mclk && clk_set_rate(wm8731->mclk, freq)) |
392 | return -EINVAL; | |
9745e824 MB |
393 | wm8731->sysclk_type = clk_id; |
394 | break; | |
395 | default: | |
396 | return -EINVAL; | |
397 | } | |
398 | ||
b36d61d4 | 399 | switch (freq) { |
0890c2b7 RG |
400 | case 0: |
401 | wm8731->constraints = NULL; | |
402 | break; | |
b36d61d4 | 403 | case 12000000: |
0890c2b7 RG |
404 | wm8731->constraints = &wm8731_constraints_12000000; |
405 | break; | |
b36d61d4 | 406 | case 12288000: |
b36d61d4 | 407 | case 18432000: |
0890c2b7 RG |
408 | wm8731->constraints = &wm8731_constraints_12288000_18432000; |
409 | break; | |
410 | case 16934400: | |
411 | case 11289600: | |
412 | wm8731->constraints = &wm8731_constraints_11289600_16934400; | |
9745e824 MB |
413 | break; |
414 | default: | |
415 | return -EINVAL; | |
b36d61d4 | 416 | } |
9745e824 | 417 | |
0890c2b7 RG |
418 | wm8731->sysclk = freq; |
419 | ||
fc31fda6 | 420 | snd_soc_dapm_sync(dapm); |
9745e824 MB |
421 | |
422 | return 0; | |
b36d61d4 FM |
423 | } |
424 | ||
425 | ||
e550e17f | 426 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
427 | unsigned int fmt) |
428 | { | |
429 | struct snd_soc_codec *codec = codec_dai->codec; | |
430 | u16 iface = 0; | |
40e0aa64 RP |
431 | |
432 | /* set master/slave audio interface */ | |
b36d61d4 | 433 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
434 | case SND_SOC_DAIFMT_CBM_CFM: |
435 | iface |= 0x0040; | |
436 | break; | |
437 | case SND_SOC_DAIFMT_CBS_CFS: | |
438 | break; | |
b36d61d4 FM |
439 | default: |
440 | return -EINVAL; | |
40e0aa64 | 441 | } |
40e0aa64 RP |
442 | |
443 | /* interface format */ | |
b36d61d4 | 444 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
445 | case SND_SOC_DAIFMT_I2S: |
446 | iface |= 0x0002; | |
447 | break; | |
448 | case SND_SOC_DAIFMT_RIGHT_J: | |
449 | break; | |
450 | case SND_SOC_DAIFMT_LEFT_J: | |
451 | iface |= 0x0001; | |
452 | break; | |
453 | case SND_SOC_DAIFMT_DSP_A: | |
b4af6ef9 | 454 | iface |= 0x0013; |
40e0aa64 RP |
455 | break; |
456 | case SND_SOC_DAIFMT_DSP_B: | |
b4af6ef9 | 457 | iface |= 0x0003; |
40e0aa64 | 458 | break; |
b36d61d4 FM |
459 | default: |
460 | return -EINVAL; | |
40e0aa64 RP |
461 | } |
462 | ||
463 | /* clock inversion */ | |
b36d61d4 | 464 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
465 | case SND_SOC_DAIFMT_NB_NF: |
466 | break; | |
467 | case SND_SOC_DAIFMT_IB_IF: | |
468 | iface |= 0x0090; | |
469 | break; | |
470 | case SND_SOC_DAIFMT_IB_NF: | |
471 | iface |= 0x0080; | |
472 | break; | |
473 | case SND_SOC_DAIFMT_NB_IF: | |
474 | iface |= 0x0010; | |
475 | break; | |
b36d61d4 FM |
476 | default: |
477 | return -EINVAL; | |
40e0aa64 RP |
478 | } |
479 | ||
480 | /* set iface */ | |
17a52fd6 | 481 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
482 | return 0; |
483 | } | |
484 | ||
0be9898a MB |
485 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
486 | enum snd_soc_bias_level level) | |
40e0aa64 | 487 | { |
06ae9988 | 488 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
9bf311fe | 489 | int ret; |
22d22ee5 | 490 | u16 reg; |
40e0aa64 | 491 | |
0be9898a MB |
492 | switch (level) { |
493 | case SND_SOC_BIAS_ON: | |
cef6daa9 FE |
494 | if (wm8731->mclk) { |
495 | ret = clk_prepare_enable(wm8731->mclk); | |
496 | if (ret) | |
497 | return ret; | |
498 | } | |
40e0aa64 | 499 | break; |
0be9898a | 500 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 501 | break; |
0be9898a | 502 | case SND_SOC_BIAS_STANDBY: |
fc31fda6 | 503 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { |
06ae9988 MB |
504 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
505 | wm8731->supplies); | |
506 | if (ret != 0) | |
507 | return ret; | |
508 | ||
05d448e2 | 509 | regcache_sync(wm8731->regmap); |
06ae9988 MB |
510 | } |
511 | ||
22d22ee5 | 512 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
513 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
514 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 515 | break; |
0be9898a | 516 | case SND_SOC_BIAS_OFF: |
99d42234 SW |
517 | if (wm8731->mclk) |
518 | clk_disable_unprepare(wm8731->mclk); | |
17a52fd6 | 519 | snd_soc_write(codec, WM8731_PWR, 0xffff); |
06ae9988 MB |
520 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
521 | wm8731->supplies); | |
05d448e2 | 522 | regcache_mark_dirty(wm8731->regmap); |
40e0aa64 RP |
523 | break; |
524 | } | |
40e0aa64 RP |
525 | return 0; |
526 | } | |
527 | ||
0890c2b7 RG |
528 | static int wm8731_startup(struct snd_pcm_substream *substream, |
529 | struct snd_soc_dai *dai) | |
530 | { | |
531 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(dai->codec); | |
532 | ||
533 | if (wm8731->constraints) | |
534 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
535 | SNDRV_PCM_HW_PARAM_RATE, | |
536 | wm8731->constraints); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
e135443e | 541 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
542 | |
543 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
544 | SNDRV_PCM_FMTBIT_S24_LE) | |
545 | ||
85e7652d | 546 | static const struct snd_soc_dai_ops wm8731_dai_ops = { |
0890c2b7 | 547 | .startup = wm8731_startup, |
6335d055 | 548 | .hw_params = wm8731_hw_params, |
6335d055 EM |
549 | .digital_mute = wm8731_mute, |
550 | .set_sysclk = wm8731_set_dai_sysclk, | |
551 | .set_fmt = wm8731_set_dai_fmt, | |
552 | }; | |
553 | ||
f0fba2ad LG |
554 | static struct snd_soc_dai_driver wm8731_dai = { |
555 | .name = "wm8731-hifi", | |
40e0aa64 RP |
556 | .playback = { |
557 | .stream_name = "Playback", | |
558 | .channels_min = 1, | |
559 | .channels_max = 2, | |
b36d61d4 FM |
560 | .rates = WM8731_RATES, |
561 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
562 | .capture = { |
563 | .stream_name = "Capture", | |
564 | .channels_min = 1, | |
565 | .channels_max = 2, | |
b36d61d4 FM |
566 | .rates = WM8731_RATES, |
567 | .formats = WM8731_FORMATS,}, | |
6335d055 | 568 | .ops = &wm8731_dai_ops, |
4934482d | 569 | .symmetric_rates = 1, |
40e0aa64 | 570 | }; |
40e0aa64 | 571 | |
6702dfcc SK |
572 | static int wm8731_request_supplies(struct device *dev, |
573 | struct wm8731_priv *wm8731) | |
40e0aa64 | 574 | { |
f0fba2ad | 575 | int ret = 0, i; |
5998102b | 576 | |
7dea7c01 MB |
577 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
578 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
579 | ||
6702dfcc | 580 | ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(wm8731->supplies), |
7dea7c01 MB |
581 | wm8731->supplies); |
582 | if (ret != 0) { | |
6702dfcc | 583 | dev_err(dev, "Failed to request supplies: %d\n", ret); |
f0fba2ad | 584 | return ret; |
7dea7c01 MB |
585 | } |
586 | ||
587 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
588 | wm8731->supplies); | |
589 | if (ret != 0) { | |
6702dfcc | 590 | dev_err(dev, "Failed to enable supplies: %d\n", ret); |
3598aad5 | 591 | return ret; |
7dea7c01 MB |
592 | } |
593 | ||
6702dfcc SK |
594 | return 0; |
595 | } | |
596 | ||
597 | static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731) | |
598 | { | |
599 | int ret = 0; | |
600 | ||
601 | ret = wm8731_reset(wm8731->regmap); | |
519cf2df | 602 | if (ret < 0) { |
6702dfcc | 603 | dev_err(dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 604 | goto err_regulator_enable; |
519cf2df MB |
605 | } |
606 | ||
6702dfcc SK |
607 | /* Clear POWEROFF, keep everything else disabled */ |
608 | regmap_write(wm8731->regmap, WM8731_PWR, 0x7f); | |
5998102b MB |
609 | |
610 | /* Latch the update bits */ | |
6702dfcc SK |
611 | regmap_update_bits(wm8731->regmap, WM8731_LOUT1V, 0x100, 0); |
612 | regmap_update_bits(wm8731->regmap, WM8731_ROUT1V, 0x100, 0); | |
613 | regmap_update_bits(wm8731->regmap, WM8731_LINVOL, 0x100, 0); | |
614 | regmap_update_bits(wm8731->regmap, WM8731_RINVOL, 0x100, 0); | |
5998102b | 615 | |
ce3bdaa8 | 616 | /* Disable bypass path by default */ |
6702dfcc | 617 | regmap_update_bits(wm8731->regmap, WM8731_APANA, 0x8, 0); |
ce3bdaa8 | 618 | |
6702dfcc | 619 | regcache_mark_dirty(wm8731->regmap); |
fe5422fc | 620 | |
7dea7c01 | 621 | err_regulator_enable: |
6702dfcc | 622 | /* Regulators will be enabled by bias management */ |
7dea7c01 | 623 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
f0fba2ad | 624 | |
fe5422fc | 625 | return ret; |
a8035c8f MB |
626 | } |
627 | ||
f0fba2ad | 628 | static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { |
f0fba2ad | 629 | .set_bias_level = wm8731_set_bias_level, |
2081b2cf LPC |
630 | .suspend_bias_off = true, |
631 | ||
5e251aec MB |
632 | .dapm_widgets = wm8731_dapm_widgets, |
633 | .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), | |
634 | .dapm_routes = wm8731_intercon, | |
635 | .num_dapm_routes = ARRAY_SIZE(wm8731_intercon), | |
cb555318 MB |
636 | .controls = wm8731_snd_controls, |
637 | .num_controls = ARRAY_SIZE(wm8731_snd_controls), | |
f0fba2ad LG |
638 | }; |
639 | ||
a7f96e4d MB |
640 | static const struct of_device_id wm8731_of_match[] = { |
641 | { .compatible = "wlf,wm8731", }, | |
642 | { } | |
643 | }; | |
644 | ||
645 | MODULE_DEVICE_TABLE(of, wm8731_of_match); | |
646 | ||
05d448e2 MB |
647 | static const struct regmap_config wm8731_regmap = { |
648 | .reg_bits = 7, | |
649 | .val_bits = 9, | |
650 | ||
651 | .max_register = WM8731_RESET, | |
652 | .volatile_reg = wm8731_volatile, | |
05d448e2 MB |
653 | |
654 | .cache_type = REGCACHE_RBTREE, | |
655 | .reg_defaults = wm8731_reg_defaults, | |
656 | .num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults), | |
657 | }; | |
658 | ||
5998102b | 659 | #if defined(CONFIG_SPI_MASTER) |
7a79e94e | 660 | static int wm8731_spi_probe(struct spi_device *spi) |
5998102b | 661 | { |
5998102b | 662 | struct wm8731_priv *wm8731; |
f0fba2ad | 663 | int ret; |
5998102b | 664 | |
cea82d8a | 665 | wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL); |
5998102b MB |
666 | if (wm8731 == NULL) |
667 | return -ENOMEM; | |
668 | ||
99d42234 SW |
669 | wm8731->mclk = devm_clk_get(&spi->dev, "mclk"); |
670 | if (IS_ERR(wm8731->mclk)) { | |
671 | ret = PTR_ERR(wm8731->mclk); | |
672 | if (ret == -ENOENT) { | |
673 | wm8731->mclk = NULL; | |
674 | dev_warn(&spi->dev, "Assuming static MCLK\n"); | |
675 | } else { | |
676 | dev_err(&spi->dev, "Failed to get MCLK: %d\n", | |
677 | ret); | |
678 | return ret; | |
679 | } | |
680 | } | |
681 | ||
a51ff30f LPC |
682 | mutex_init(&wm8731->lock); |
683 | ||
6702dfcc SK |
684 | spi_set_drvdata(spi, wm8731); |
685 | ||
686 | ret = wm8731_request_supplies(&spi->dev, wm8731); | |
687 | if (ret != 0) | |
688 | return ret; | |
689 | ||
f1992dde | 690 | wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap); |
05d448e2 MB |
691 | if (IS_ERR(wm8731->regmap)) { |
692 | ret = PTR_ERR(wm8731->regmap); | |
693 | dev_err(&spi->dev, "Failed to allocate register map: %d\n", | |
694 | ret); | |
f1992dde | 695 | return ret; |
05d448e2 MB |
696 | } |
697 | ||
6702dfcc SK |
698 | ret = wm8731_hw_init(&spi->dev, wm8731); |
699 | if (ret != 0) | |
700 | return ret; | |
93b760b7 | 701 | |
f0fba2ad LG |
702 | ret = snd_soc_register_codec(&spi->dev, |
703 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
05d448e2 MB |
704 | if (ret != 0) { |
705 | dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); | |
f1992dde | 706 | return ret; |
05d448e2 MB |
707 | } |
708 | ||
709 | return 0; | |
5998102b MB |
710 | } |
711 | ||
7a79e94e | 712 | static int wm8731_spi_remove(struct spi_device *spi) |
5998102b | 713 | { |
f0fba2ad | 714 | snd_soc_unregister_codec(&spi->dev); |
5998102b MB |
715 | return 0; |
716 | } | |
717 | ||
718 | static struct spi_driver wm8731_spi_driver = { | |
719 | .driver = { | |
99b59f3c | 720 | .name = "wm8731", |
a7f96e4d | 721 | .of_match_table = wm8731_of_match, |
5998102b MB |
722 | }, |
723 | .probe = wm8731_spi_probe, | |
7a79e94e | 724 | .remove = wm8731_spi_remove, |
5998102b | 725 | }; |
a8035c8f MB |
726 | #endif /* CONFIG_SPI_MASTER */ |
727 | ||
b65ab73e | 728 | #if IS_ENABLED(CONFIG_I2C) |
7a79e94e BP |
729 | static int wm8731_i2c_probe(struct i2c_client *i2c, |
730 | const struct i2c_device_id *id) | |
a8035c8f | 731 | { |
5998102b | 732 | struct wm8731_priv *wm8731; |
f0fba2ad | 733 | int ret; |
a8035c8f | 734 | |
f1992dde MB |
735 | wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv), |
736 | GFP_KERNEL); | |
5998102b MB |
737 | if (wm8731 == NULL) |
738 | return -ENOMEM; | |
739 | ||
99d42234 SW |
740 | wm8731->mclk = devm_clk_get(&i2c->dev, "mclk"); |
741 | if (IS_ERR(wm8731->mclk)) { | |
742 | ret = PTR_ERR(wm8731->mclk); | |
743 | if (ret == -ENOENT) { | |
744 | wm8731->mclk = NULL; | |
745 | dev_warn(&i2c->dev, "Assuming static MCLK\n"); | |
746 | } else { | |
747 | dev_err(&i2c->dev, "Failed to get MCLK: %d\n", | |
748 | ret); | |
749 | return ret; | |
750 | } | |
751 | } | |
752 | ||
8a6cf30b ML |
753 | mutex_init(&wm8731->lock); |
754 | ||
6702dfcc SK |
755 | i2c_set_clientdata(i2c, wm8731); |
756 | ||
757 | ret = wm8731_request_supplies(&i2c->dev, wm8731); | |
758 | if (ret != 0) | |
759 | return ret; | |
760 | ||
f1992dde | 761 | wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap); |
05d448e2 MB |
762 | if (IS_ERR(wm8731->regmap)) { |
763 | ret = PTR_ERR(wm8731->regmap); | |
764 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", | |
765 | ret); | |
f1992dde | 766 | return ret; |
05d448e2 MB |
767 | } |
768 | ||
6702dfcc SK |
769 | ret = wm8731_hw_init(&i2c->dev, wm8731); |
770 | if (ret != 0) | |
771 | return ret; | |
a8035c8f | 772 | |
05d448e2 | 773 | ret = snd_soc_register_codec(&i2c->dev, |
f0fba2ad | 774 | &soc_codec_dev_wm8731, &wm8731_dai, 1); |
05d448e2 MB |
775 | if (ret != 0) { |
776 | dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); | |
f1992dde | 777 | return ret; |
05d448e2 MB |
778 | } |
779 | ||
780 | return 0; | |
a8035c8f MB |
781 | } |
782 | ||
7a79e94e | 783 | static int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 784 | { |
f0fba2ad | 785 | snd_soc_unregister_codec(&client->dev); |
a8035c8f MB |
786 | return 0; |
787 | } | |
788 | ||
789 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
790 | { "wm8731", 0 }, | |
791 | { } | |
792 | }; | |
793 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
794 | ||
795 | static struct i2c_driver wm8731_i2c_driver = { | |
796 | .driver = { | |
99b59f3c | 797 | .name = "wm8731", |
a7f96e4d | 798 | .of_match_table = wm8731_of_match, |
a8035c8f MB |
799 | }, |
800 | .probe = wm8731_i2c_probe, | |
7a79e94e | 801 | .remove = wm8731_i2c_remove, |
a8035c8f MB |
802 | .id_table = wm8731_i2c_id, |
803 | }; | |
804 | #endif | |
805 | ||
c9b3a40f | 806 | static int __init wm8731_modinit(void) |
64089b84 | 807 | { |
f0fba2ad | 808 | int ret = 0; |
b65ab73e | 809 | #if IS_ENABLED(CONFIG_I2C) |
5998102b MB |
810 | ret = i2c_add_driver(&wm8731_i2c_driver); |
811 | if (ret != 0) { | |
812 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
813 | ret); | |
814 | } | |
815 | #endif | |
816 | #if defined(CONFIG_SPI_MASTER) | |
817 | ret = spi_register_driver(&wm8731_spi_driver); | |
818 | if (ret != 0) { | |
819 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
820 | ret); | |
821 | } | |
822 | #endif | |
f0fba2ad | 823 | return ret; |
64089b84 MB |
824 | } |
825 | module_init(wm8731_modinit); | |
826 | ||
827 | static void __exit wm8731_exit(void) | |
828 | { | |
b65ab73e | 829 | #if IS_ENABLED(CONFIG_I2C) |
5998102b MB |
830 | i2c_del_driver(&wm8731_i2c_driver); |
831 | #endif | |
832 | #if defined(CONFIG_SPI_MASTER) | |
833 | spi_unregister_driver(&wm8731_spi_driver); | |
834 | #endif | |
64089b84 MB |
835 | } |
836 | module_exit(wm8731_exit); | |
837 | ||
40e0aa64 RP |
838 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
839 | MODULE_AUTHOR("Richard Purdie"); | |
840 | MODULE_LICENSE("GPL"); |