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924914ee MB |
1 | /* |
2 | * wm8776.c -- WM8776 ALSA SoC Audio driver | |
3 | * | |
656baaeb | 4 | * Copyright 2009-12 Wolfson Microelectronics plc |
924914ee MB |
5 | * |
6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * TODO: Input ALC/limiter support | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/pm.h> | |
20 | #include <linux/i2c.h> | |
b6de4315 | 21 | #include <linux/of_device.h> |
2cbde7ab | 22 | #include <linux/regmap.h> |
924914ee | 23 | #include <linux/spi/spi.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
924914ee MB |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
924914ee MB |
29 | #include <sound/initval.h> |
30 | #include <sound/tlv.h> | |
31 | ||
32 | #include "wm8776.h" | |
33 | ||
fdd48f9d MB |
34 | enum wm8776_chip_type { |
35 | WM8775 = 1, | |
36 | WM8776, | |
37 | }; | |
38 | ||
924914ee MB |
39 | /* codec private data */ |
40 | struct wm8776_priv { | |
2cbde7ab | 41 | struct regmap *regmap; |
924914ee MB |
42 | int sysclk[2]; |
43 | }; | |
44 | ||
2cbde7ab MB |
45 | static const struct reg_default wm8776_reg_defaults[] = { |
46 | { 0, 0x79 }, | |
47 | { 1, 0x79 }, | |
48 | { 2, 0x79 }, | |
49 | { 3, 0xff }, | |
50 | { 4, 0xff }, | |
51 | { 5, 0xff }, | |
52 | { 6, 0x00 }, | |
53 | { 7, 0x90 }, | |
54 | { 8, 0x00 }, | |
55 | { 9, 0x00 }, | |
56 | { 10, 0x22 }, | |
57 | { 11, 0x22 }, | |
58 | { 12, 0x22 }, | |
59 | { 13, 0x08 }, | |
60 | { 14, 0xcf }, | |
61 | { 15, 0xcf }, | |
62 | { 16, 0x7b }, | |
63 | { 17, 0x00 }, | |
64 | { 18, 0x32 }, | |
65 | { 19, 0x00 }, | |
66 | { 20, 0xa6 }, | |
67 | { 21, 0x01 }, | |
68 | { 22, 0x01 }, | |
924914ee MB |
69 | }; |
70 | ||
2cbde7ab MB |
71 | static bool wm8776_volatile(struct device *dev, unsigned int reg) |
72 | { | |
73 | switch (reg) { | |
74 | case WM8776_RESET: | |
75 | return true; | |
76 | default: | |
77 | return false; | |
78 | } | |
79 | } | |
80 | ||
924914ee MB |
81 | static int wm8776_reset(struct snd_soc_codec *codec) |
82 | { | |
35b1207b | 83 | return snd_soc_write(codec, WM8776_RESET, 0); |
924914ee MB |
84 | } |
85 | ||
86 | static const DECLARE_TLV_DB_SCALE(hp_tlv, -12100, 100, 1); | |
87 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); | |
88 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -10350, 50, 1); | |
89 | ||
90 | static const struct snd_kcontrol_new wm8776_snd_controls[] = { | |
91 | SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8776_HPLVOL, WM8776_HPRVOL, | |
92 | 0, 127, 0, hp_tlv), | |
93 | SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8776_DACLVOL, WM8776_DACRVOL, | |
94 | 0, 255, 0, dac_tlv), | |
95 | SOC_SINGLE("Digital Playback ZC Switch", WM8776_DACCTRL1, 0, 1, 0), | |
96 | ||
97 | SOC_SINGLE("Deemphasis Switch", WM8776_DACCTRL2, 0, 1, 0), | |
98 | ||
99 | SOC_DOUBLE_R_TLV("Capture Volume", WM8776_ADCLVOL, WM8776_ADCRVOL, | |
100 | 0, 255, 0, adc_tlv), | |
101 | SOC_DOUBLE("Capture Switch", WM8776_ADCMUX, 7, 6, 1, 1), | |
102 | SOC_DOUBLE_R("Capture ZC Switch", WM8776_ADCLVOL, WM8776_ADCRVOL, 8, 1, 0), | |
103 | SOC_SINGLE("Capture HPF Switch", WM8776_ADCIFCTRL, 8, 1, 1), | |
104 | }; | |
105 | ||
106 | static const struct snd_kcontrol_new inmix_controls[] = { | |
107 | SOC_DAPM_SINGLE("AIN1 Switch", WM8776_ADCMUX, 0, 1, 0), | |
108 | SOC_DAPM_SINGLE("AIN2 Switch", WM8776_ADCMUX, 1, 1, 0), | |
109 | SOC_DAPM_SINGLE("AIN3 Switch", WM8776_ADCMUX, 2, 1, 0), | |
110 | SOC_DAPM_SINGLE("AIN4 Switch", WM8776_ADCMUX, 3, 1, 0), | |
111 | SOC_DAPM_SINGLE("AIN5 Switch", WM8776_ADCMUX, 4, 1, 0), | |
112 | }; | |
113 | ||
114 | static const struct snd_kcontrol_new outmix_controls[] = { | |
115 | SOC_DAPM_SINGLE("DAC Switch", WM8776_OUTMUX, 0, 1, 0), | |
116 | SOC_DAPM_SINGLE("AUX Switch", WM8776_OUTMUX, 1, 1, 0), | |
117 | SOC_DAPM_SINGLE("Bypass Switch", WM8776_OUTMUX, 2, 1, 0), | |
118 | }; | |
119 | ||
120 | static const struct snd_soc_dapm_widget wm8776_dapm_widgets[] = { | |
121 | SND_SOC_DAPM_INPUT("AUX"), | |
924914ee MB |
122 | |
123 | SND_SOC_DAPM_INPUT("AIN1"), | |
124 | SND_SOC_DAPM_INPUT("AIN2"), | |
125 | SND_SOC_DAPM_INPUT("AIN3"), | |
126 | SND_SOC_DAPM_INPUT("AIN4"), | |
127 | SND_SOC_DAPM_INPUT("AIN5"), | |
128 | ||
129 | SND_SOC_DAPM_MIXER("Input Mixer", WM8776_PWRDOWN, 6, 1, | |
130 | inmix_controls, ARRAY_SIZE(inmix_controls)), | |
131 | ||
132 | SND_SOC_DAPM_ADC("ADC", "Capture", WM8776_PWRDOWN, 1, 1), | |
133 | SND_SOC_DAPM_DAC("DAC", "Playback", WM8776_PWRDOWN, 2, 1), | |
134 | ||
135 | SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, | |
136 | outmix_controls, ARRAY_SIZE(outmix_controls)), | |
137 | ||
138 | SND_SOC_DAPM_PGA("Headphone PGA", WM8776_PWRDOWN, 3, 1, NULL, 0), | |
139 | ||
140 | SND_SOC_DAPM_OUTPUT("VOUT"), | |
141 | ||
142 | SND_SOC_DAPM_OUTPUT("HPOUTL"), | |
143 | SND_SOC_DAPM_OUTPUT("HPOUTR"), | |
144 | }; | |
145 | ||
146 | static const struct snd_soc_dapm_route routes[] = { | |
147 | { "Input Mixer", "AIN1 Switch", "AIN1" }, | |
148 | { "Input Mixer", "AIN2 Switch", "AIN2" }, | |
149 | { "Input Mixer", "AIN3 Switch", "AIN3" }, | |
150 | { "Input Mixer", "AIN4 Switch", "AIN4" }, | |
151 | { "Input Mixer", "AIN5 Switch", "AIN5" }, | |
152 | ||
153 | { "ADC", NULL, "Input Mixer" }, | |
154 | ||
155 | { "Output Mixer", "DAC Switch", "DAC" }, | |
156 | { "Output Mixer", "AUX Switch", "AUX" }, | |
157 | { "Output Mixer", "Bypass Switch", "Input Mixer" }, | |
158 | ||
159 | { "VOUT", NULL, "Output Mixer" }, | |
160 | ||
161 | { "Headphone PGA", NULL, "Output Mixer" }, | |
162 | ||
163 | { "HPOUTL", NULL, "Headphone PGA" }, | |
164 | { "HPOUTR", NULL, "Headphone PGA" }, | |
165 | }; | |
166 | ||
167 | static int wm8776_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
168 | { | |
169 | struct snd_soc_codec *codec = dai->codec; | |
170 | int reg, iface, master; | |
171 | ||
f0fba2ad | 172 | switch (dai->driver->id) { |
924914ee MB |
173 | case WM8776_DAI_DAC: |
174 | reg = WM8776_DACIFCTRL; | |
175 | master = 0x80; | |
176 | break; | |
177 | case WM8776_DAI_ADC: | |
178 | reg = WM8776_ADCIFCTRL; | |
179 | master = 0x100; | |
180 | break; | |
181 | default: | |
182 | return -EINVAL; | |
183 | } | |
184 | ||
185 | iface = 0; | |
186 | ||
187 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
188 | case SND_SOC_DAIFMT_CBM_CFM: | |
189 | break; | |
190 | case SND_SOC_DAIFMT_CBS_CFS: | |
191 | master = 0; | |
192 | break; | |
193 | default: | |
194 | return -EINVAL; | |
195 | } | |
196 | ||
197 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
198 | case SND_SOC_DAIFMT_I2S: | |
199 | iface |= 0x0002; | |
200 | break; | |
201 | case SND_SOC_DAIFMT_RIGHT_J: | |
202 | break; | |
203 | case SND_SOC_DAIFMT_LEFT_J: | |
204 | iface |= 0x0001; | |
205 | break; | |
924914ee MB |
206 | default: |
207 | return -EINVAL; | |
208 | } | |
209 | ||
210 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
211 | case SND_SOC_DAIFMT_NB_NF: | |
212 | break; | |
213 | case SND_SOC_DAIFMT_IB_IF: | |
214 | iface |= 0x00c; | |
215 | break; | |
216 | case SND_SOC_DAIFMT_IB_NF: | |
217 | iface |= 0x008; | |
218 | break; | |
219 | case SND_SOC_DAIFMT_NB_IF: | |
220 | iface |= 0x004; | |
221 | break; | |
222 | default: | |
223 | return -EINVAL; | |
224 | } | |
225 | ||
226 | /* Finally, write out the values */ | |
227 | snd_soc_update_bits(codec, reg, 0xf, iface); | |
228 | snd_soc_update_bits(codec, WM8776_MSTRCTRL, 0x180, master); | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int mclk_ratios[] = { | |
234 | 128, | |
235 | 192, | |
236 | 256, | |
237 | 384, | |
238 | 512, | |
239 | 768, | |
240 | }; | |
241 | ||
242 | static int wm8776_hw_params(struct snd_pcm_substream *substream, | |
243 | struct snd_pcm_hw_params *params, | |
244 | struct snd_soc_dai *dai) | |
245 | { | |
246 | struct snd_soc_codec *codec = dai->codec; | |
b2c812e2 | 247 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
924914ee MB |
248 | int iface_reg, iface; |
249 | int ratio_shift, master; | |
250 | int i; | |
251 | ||
f0fba2ad | 252 | switch (dai->driver->id) { |
924914ee MB |
253 | case WM8776_DAI_DAC: |
254 | iface_reg = WM8776_DACIFCTRL; | |
255 | master = 0x80; | |
256 | ratio_shift = 4; | |
257 | break; | |
258 | case WM8776_DAI_ADC: | |
259 | iface_reg = WM8776_ADCIFCTRL; | |
260 | master = 0x100; | |
261 | ratio_shift = 0; | |
262 | break; | |
263 | default: | |
264 | return -EINVAL; | |
265 | } | |
266 | ||
924914ee | 267 | /* Set word length */ |
0a3dcb50 | 268 | switch (params_width(params)) { |
d1dc698a TT |
269 | case 16: |
270 | iface = 0; | |
990fc3d0 | 271 | break; |
d1dc698a TT |
272 | case 20: |
273 | iface = 0x10; | |
924914ee | 274 | break; |
d1dc698a TT |
275 | case 24: |
276 | iface = 0x20; | |
924914ee | 277 | break; |
d1dc698a TT |
278 | case 32: |
279 | iface = 0x30; | |
924914ee | 280 | break; |
d1dc698a TT |
281 | default: |
282 | dev_err(codec->dev, "Unsupported sample size: %i\n", | |
0a3dcb50 | 283 | params_width(params)); |
d1dc698a | 284 | return -EINVAL; |
924914ee MB |
285 | } |
286 | ||
287 | /* Only need to set MCLK/LRCLK ratio if we're master */ | |
288 | if (snd_soc_read(codec, WM8776_MSTRCTRL) & master) { | |
289 | for (i = 0; i < ARRAY_SIZE(mclk_ratios); i++) { | |
f0fba2ad | 290 | if (wm8776->sysclk[dai->driver->id] / params_rate(params) |
924914ee MB |
291 | == mclk_ratios[i]) |
292 | break; | |
293 | } | |
294 | ||
295 | if (i == ARRAY_SIZE(mclk_ratios)) { | |
296 | dev_err(codec->dev, | |
297 | "Unable to configure MCLK ratio %d/%d\n", | |
f0fba2ad | 298 | wm8776->sysclk[dai->driver->id], params_rate(params)); |
924914ee MB |
299 | return -EINVAL; |
300 | } | |
301 | ||
302 | dev_dbg(codec->dev, "MCLK is %dfs\n", mclk_ratios[i]); | |
303 | ||
304 | snd_soc_update_bits(codec, WM8776_MSTRCTRL, | |
305 | 0x7 << ratio_shift, i << ratio_shift); | |
306 | } else { | |
307 | dev_dbg(codec->dev, "DAI in slave mode\n"); | |
308 | } | |
309 | ||
310 | snd_soc_update_bits(codec, iface_reg, 0x30, iface); | |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
315 | static int wm8776_mute(struct snd_soc_dai *dai, int mute) | |
316 | { | |
317 | struct snd_soc_codec *codec = dai->codec; | |
318 | ||
319 | return snd_soc_write(codec, WM8776_DACMUTE, !!mute); | |
320 | } | |
321 | ||
322 | static int wm8776_set_sysclk(struct snd_soc_dai *dai, | |
323 | int clk_id, unsigned int freq, int dir) | |
324 | { | |
325 | struct snd_soc_codec *codec = dai->codec; | |
b2c812e2 | 326 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
924914ee | 327 | |
22a7038c TI |
328 | if (WARN_ON(dai->driver->id >= ARRAY_SIZE(wm8776->sysclk))) |
329 | return -EINVAL; | |
924914ee | 330 | |
f0fba2ad | 331 | wm8776->sysclk[dai->driver->id] = freq; |
924914ee MB |
332 | |
333 | return 0; | |
334 | } | |
335 | ||
336 | static int wm8776_set_bias_level(struct snd_soc_codec *codec, | |
337 | enum snd_soc_bias_level level) | |
338 | { | |
2cbde7ab MB |
339 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
340 | ||
924914ee MB |
341 | switch (level) { |
342 | case SND_SOC_BIAS_ON: | |
343 | break; | |
344 | case SND_SOC_BIAS_PREPARE: | |
345 | break; | |
346 | case SND_SOC_BIAS_STANDBY: | |
265b8ac8 | 347 | if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { |
2cbde7ab | 348 | regcache_sync(wm8776->regmap); |
abe11d0a | 349 | |
924914ee MB |
350 | /* Disable the global powerdown; DAPM does the rest */ |
351 | snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 0); | |
352 | } | |
353 | ||
354 | break; | |
355 | case SND_SOC_BIAS_OFF: | |
356 | snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 1); | |
357 | break; | |
358 | } | |
359 | ||
924914ee MB |
360 | return 0; |
361 | } | |
362 | ||
924914ee MB |
363 | #define WM8776_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
364 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
365 | ||
85e7652d | 366 | static const struct snd_soc_dai_ops wm8776_dac_ops = { |
924914ee MB |
367 | .digital_mute = wm8776_mute, |
368 | .hw_params = wm8776_hw_params, | |
369 | .set_fmt = wm8776_set_fmt, | |
370 | .set_sysclk = wm8776_set_sysclk, | |
371 | }; | |
372 | ||
85e7652d | 373 | static const struct snd_soc_dai_ops wm8776_adc_ops = { |
924914ee MB |
374 | .hw_params = wm8776_hw_params, |
375 | .set_fmt = wm8776_set_fmt, | |
376 | .set_sysclk = wm8776_set_sysclk, | |
377 | }; | |
378 | ||
f0fba2ad | 379 | static struct snd_soc_dai_driver wm8776_dai[] = { |
924914ee | 380 | { |
f0fba2ad LG |
381 | .name = "wm8776-hifi-playback", |
382 | .id = WM8776_DAI_DAC, | |
924914ee MB |
383 | .playback = { |
384 | .stream_name = "Playback", | |
385 | .channels_min = 2, | |
386 | .channels_max = 2, | |
0016226d TT |
387 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
388 | .rate_min = 32000, | |
389 | .rate_max = 192000, | |
924914ee MB |
390 | .formats = WM8776_FORMATS, |
391 | }, | |
392 | .ops = &wm8776_dac_ops, | |
393 | }, | |
394 | { | |
f0fba2ad LG |
395 | .name = "wm8776-hifi-capture", |
396 | .id = WM8776_DAI_ADC, | |
924914ee MB |
397 | .capture = { |
398 | .stream_name = "Capture", | |
399 | .channels_min = 2, | |
400 | .channels_max = 2, | |
0016226d TT |
401 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
402 | .rate_min = 32000, | |
403 | .rate_max = 96000, | |
924914ee MB |
404 | .formats = WM8776_FORMATS, |
405 | }, | |
406 | .ops = &wm8776_adc_ops, | |
407 | }, | |
408 | }; | |
924914ee | 409 | |
f0fba2ad | 410 | static int wm8776_probe(struct snd_soc_codec *codec) |
924914ee | 411 | { |
924914ee MB |
412 | int ret = 0; |
413 | ||
f0fba2ad | 414 | ret = wm8776_reset(codec); |
924914ee | 415 | if (ret < 0) { |
f0fba2ad LG |
416 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
417 | return ret; | |
924914ee MB |
418 | } |
419 | ||
f0fba2ad LG |
420 | /* Latch the update bits; right channel only since we always |
421 | * update both. */ | |
422 | snd_soc_update_bits(codec, WM8776_HPRVOL, 0x100, 0x100); | |
423 | snd_soc_update_bits(codec, WM8776_DACRVOL, 0x100, 0x100); | |
424 | ||
924914ee | 425 | return ret; |
924914ee MB |
426 | } |
427 | ||
f0fba2ad | 428 | static struct snd_soc_codec_driver soc_codec_dev_wm8776 = { |
924914ee | 429 | .probe = wm8776_probe, |
f0fba2ad | 430 | .set_bias_level = wm8776_set_bias_level, |
6c286afb | 431 | .suspend_bias_off = true, |
1db3c98e MB |
432 | |
433 | .controls = wm8776_snd_controls, | |
434 | .num_controls = ARRAY_SIZE(wm8776_snd_controls), | |
435 | .dapm_widgets = wm8776_dapm_widgets, | |
436 | .num_dapm_widgets = ARRAY_SIZE(wm8776_dapm_widgets), | |
437 | .dapm_routes = routes, | |
438 | .num_dapm_routes = ARRAY_SIZE(routes), | |
924914ee | 439 | }; |
924914ee | 440 | |
b6de4315 MB |
441 | static const struct of_device_id wm8776_of_match[] = { |
442 | { .compatible = "wlf,wm8776", }, | |
443 | { } | |
444 | }; | |
445 | MODULE_DEVICE_TABLE(of, wm8776_of_match); | |
446 | ||
2cbde7ab MB |
447 | static const struct regmap_config wm8776_regmap = { |
448 | .reg_bits = 7, | |
449 | .val_bits = 9, | |
450 | .max_register = WM8776_RESET, | |
451 | ||
452 | .reg_defaults = wm8776_reg_defaults, | |
453 | .num_reg_defaults = ARRAY_SIZE(wm8776_reg_defaults), | |
454 | .cache_type = REGCACHE_RBTREE, | |
455 | ||
456 | .volatile_reg = wm8776_volatile, | |
457 | }; | |
458 | ||
924914ee | 459 | #if defined(CONFIG_SPI_MASTER) |
7a79e94e | 460 | static int wm8776_spi_probe(struct spi_device *spi) |
924914ee | 461 | { |
924914ee | 462 | struct wm8776_priv *wm8776; |
f0fba2ad | 463 | int ret; |
924914ee | 464 | |
bf97ca9a MB |
465 | wm8776 = devm_kzalloc(&spi->dev, sizeof(struct wm8776_priv), |
466 | GFP_KERNEL); | |
924914ee MB |
467 | if (wm8776 == NULL) |
468 | return -ENOMEM; | |
469 | ||
2cbde7ab MB |
470 | wm8776->regmap = devm_regmap_init_spi(spi, &wm8776_regmap); |
471 | if (IS_ERR(wm8776->regmap)) | |
472 | return PTR_ERR(wm8776->regmap); | |
473 | ||
f0fba2ad | 474 | spi_set_drvdata(spi, wm8776); |
924914ee | 475 | |
f0fba2ad LG |
476 | ret = snd_soc_register_codec(&spi->dev, |
477 | &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai)); | |
bf97ca9a | 478 | |
f0fba2ad | 479 | return ret; |
924914ee MB |
480 | } |
481 | ||
7a79e94e | 482 | static int wm8776_spi_remove(struct spi_device *spi) |
924914ee | 483 | { |
f0fba2ad | 484 | snd_soc_unregister_codec(&spi->dev); |
924914ee MB |
485 | return 0; |
486 | } | |
487 | ||
924914ee MB |
488 | static struct spi_driver wm8776_spi_driver = { |
489 | .driver = { | |
1e3ad571 | 490 | .name = "wm8776", |
b6de4315 | 491 | .of_match_table = wm8776_of_match, |
924914ee MB |
492 | }, |
493 | .probe = wm8776_spi_probe, | |
7a79e94e | 494 | .remove = wm8776_spi_remove, |
924914ee MB |
495 | }; |
496 | #endif /* CONFIG_SPI_MASTER */ | |
497 | ||
1769267b | 498 | #if IS_ENABLED(CONFIG_I2C) |
7a79e94e BP |
499 | static int wm8776_i2c_probe(struct i2c_client *i2c, |
500 | const struct i2c_device_id *id) | |
924914ee MB |
501 | { |
502 | struct wm8776_priv *wm8776; | |
f0fba2ad | 503 | int ret; |
924914ee | 504 | |
bf97ca9a MB |
505 | wm8776 = devm_kzalloc(&i2c->dev, sizeof(struct wm8776_priv), |
506 | GFP_KERNEL); | |
924914ee MB |
507 | if (wm8776 == NULL) |
508 | return -ENOMEM; | |
509 | ||
2cbde7ab MB |
510 | wm8776->regmap = devm_regmap_init_i2c(i2c, &wm8776_regmap); |
511 | if (IS_ERR(wm8776->regmap)) | |
512 | return PTR_ERR(wm8776->regmap); | |
513 | ||
924914ee | 514 | i2c_set_clientdata(i2c, wm8776); |
924914ee | 515 | |
f0fba2ad LG |
516 | ret = snd_soc_register_codec(&i2c->dev, |
517 | &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai)); | |
bf97ca9a | 518 | |
f0fba2ad | 519 | return ret; |
924914ee MB |
520 | } |
521 | ||
7a79e94e | 522 | static int wm8776_i2c_remove(struct i2c_client *client) |
924914ee | 523 | { |
f0fba2ad | 524 | snd_soc_unregister_codec(&client->dev); |
924914ee MB |
525 | return 0; |
526 | } | |
527 | ||
924914ee | 528 | static const struct i2c_device_id wm8776_i2c_id[] = { |
fdd48f9d MB |
529 | { "wm8775", WM8775 }, |
530 | { "wm8776", WM8776 }, | |
924914ee MB |
531 | { } |
532 | }; | |
533 | MODULE_DEVICE_TABLE(i2c, wm8776_i2c_id); | |
534 | ||
535 | static struct i2c_driver wm8776_i2c_driver = { | |
536 | .driver = { | |
1e3ad571 | 537 | .name = "wm8776", |
b6de4315 | 538 | .of_match_table = wm8776_of_match, |
924914ee MB |
539 | }, |
540 | .probe = wm8776_i2c_probe, | |
7a79e94e | 541 | .remove = wm8776_i2c_remove, |
924914ee MB |
542 | .id_table = wm8776_i2c_id, |
543 | }; | |
544 | #endif | |
545 | ||
546 | static int __init wm8776_modinit(void) | |
547 | { | |
f0fba2ad | 548 | int ret = 0; |
1769267b | 549 | #if IS_ENABLED(CONFIG_I2C) |
924914ee MB |
550 | ret = i2c_add_driver(&wm8776_i2c_driver); |
551 | if (ret != 0) { | |
f0fba2ad | 552 | printk(KERN_ERR "Failed to register wm8776 I2C driver: %d\n", |
924914ee MB |
553 | ret); |
554 | } | |
555 | #endif | |
556 | #if defined(CONFIG_SPI_MASTER) | |
557 | ret = spi_register_driver(&wm8776_spi_driver); | |
558 | if (ret != 0) { | |
f0fba2ad | 559 | printk(KERN_ERR "Failed to register wm8776 SPI driver: %d\n", |
924914ee MB |
560 | ret); |
561 | } | |
562 | #endif | |
f0fba2ad | 563 | return ret; |
924914ee MB |
564 | } |
565 | module_init(wm8776_modinit); | |
566 | ||
567 | static void __exit wm8776_exit(void) | |
568 | { | |
1769267b | 569 | #if IS_ENABLED(CONFIG_I2C) |
924914ee MB |
570 | i2c_del_driver(&wm8776_i2c_driver); |
571 | #endif | |
572 | #if defined(CONFIG_SPI_MASTER) | |
573 | spi_unregister_driver(&wm8776_spi_driver); | |
574 | #endif | |
575 | } | |
576 | module_exit(wm8776_exit); | |
577 | ||
578 | MODULE_DESCRIPTION("ASoC WM8776 driver"); | |
579 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
580 | MODULE_LICENSE("GPL"); |