Commit | Line | Data |
---|---|---|
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> |
924914ee | 22 | #include <linux/spi/spi.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
924914ee MB |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
924914ee MB |
28 | #include <sound/initval.h> |
29 | #include <sound/tlv.h> | |
30 | ||
31 | #include "wm8776.h" | |
32 | ||
fdd48f9d MB |
33 | enum wm8776_chip_type { |
34 | WM8775 = 1, | |
35 | WM8776, | |
36 | }; | |
37 | ||
924914ee MB |
38 | /* codec private data */ |
39 | struct wm8776_priv { | |
f0fba2ad | 40 | enum snd_soc_control_type control_type; |
924914ee MB |
41 | int sysclk[2]; |
42 | }; | |
43 | ||
924914ee MB |
44 | static const u16 wm8776_reg[WM8776_CACHEREGNUM] = { |
45 | 0x79, 0x79, 0x79, 0xff, 0xff, /* 4 */ | |
46 | 0xff, 0x00, 0x90, 0x00, 0x00, /* 9 */ | |
47 | 0x22, 0x22, 0x22, 0x08, 0xcf, /* 14 */ | |
48 | 0xcf, 0x7b, 0x00, 0x32, 0x00, /* 19 */ | |
49 | 0xa6, 0x01, 0x01 | |
50 | }; | |
51 | ||
924914ee MB |
52 | static int wm8776_reset(struct snd_soc_codec *codec) |
53 | { | |
35b1207b | 54 | return snd_soc_write(codec, WM8776_RESET, 0); |
924914ee MB |
55 | } |
56 | ||
57 | static const DECLARE_TLV_DB_SCALE(hp_tlv, -12100, 100, 1); | |
58 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); | |
59 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -10350, 50, 1); | |
60 | ||
61 | static const struct snd_kcontrol_new wm8776_snd_controls[] = { | |
62 | SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8776_HPLVOL, WM8776_HPRVOL, | |
63 | 0, 127, 0, hp_tlv), | |
64 | SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8776_DACLVOL, WM8776_DACRVOL, | |
65 | 0, 255, 0, dac_tlv), | |
66 | SOC_SINGLE("Digital Playback ZC Switch", WM8776_DACCTRL1, 0, 1, 0), | |
67 | ||
68 | SOC_SINGLE("Deemphasis Switch", WM8776_DACCTRL2, 0, 1, 0), | |
69 | ||
70 | SOC_DOUBLE_R_TLV("Capture Volume", WM8776_ADCLVOL, WM8776_ADCRVOL, | |
71 | 0, 255, 0, adc_tlv), | |
72 | SOC_DOUBLE("Capture Switch", WM8776_ADCMUX, 7, 6, 1, 1), | |
73 | SOC_DOUBLE_R("Capture ZC Switch", WM8776_ADCLVOL, WM8776_ADCRVOL, 8, 1, 0), | |
74 | SOC_SINGLE("Capture HPF Switch", WM8776_ADCIFCTRL, 8, 1, 1), | |
75 | }; | |
76 | ||
77 | static const struct snd_kcontrol_new inmix_controls[] = { | |
78 | SOC_DAPM_SINGLE("AIN1 Switch", WM8776_ADCMUX, 0, 1, 0), | |
79 | SOC_DAPM_SINGLE("AIN2 Switch", WM8776_ADCMUX, 1, 1, 0), | |
80 | SOC_DAPM_SINGLE("AIN3 Switch", WM8776_ADCMUX, 2, 1, 0), | |
81 | SOC_DAPM_SINGLE("AIN4 Switch", WM8776_ADCMUX, 3, 1, 0), | |
82 | SOC_DAPM_SINGLE("AIN5 Switch", WM8776_ADCMUX, 4, 1, 0), | |
83 | }; | |
84 | ||
85 | static const struct snd_kcontrol_new outmix_controls[] = { | |
86 | SOC_DAPM_SINGLE("DAC Switch", WM8776_OUTMUX, 0, 1, 0), | |
87 | SOC_DAPM_SINGLE("AUX Switch", WM8776_OUTMUX, 1, 1, 0), | |
88 | SOC_DAPM_SINGLE("Bypass Switch", WM8776_OUTMUX, 2, 1, 0), | |
89 | }; | |
90 | ||
91 | static const struct snd_soc_dapm_widget wm8776_dapm_widgets[] = { | |
92 | SND_SOC_DAPM_INPUT("AUX"), | |
924914ee MB |
93 | |
94 | SND_SOC_DAPM_INPUT("AIN1"), | |
95 | SND_SOC_DAPM_INPUT("AIN2"), | |
96 | SND_SOC_DAPM_INPUT("AIN3"), | |
97 | SND_SOC_DAPM_INPUT("AIN4"), | |
98 | SND_SOC_DAPM_INPUT("AIN5"), | |
99 | ||
100 | SND_SOC_DAPM_MIXER("Input Mixer", WM8776_PWRDOWN, 6, 1, | |
101 | inmix_controls, ARRAY_SIZE(inmix_controls)), | |
102 | ||
103 | SND_SOC_DAPM_ADC("ADC", "Capture", WM8776_PWRDOWN, 1, 1), | |
104 | SND_SOC_DAPM_DAC("DAC", "Playback", WM8776_PWRDOWN, 2, 1), | |
105 | ||
106 | SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, | |
107 | outmix_controls, ARRAY_SIZE(outmix_controls)), | |
108 | ||
109 | SND_SOC_DAPM_PGA("Headphone PGA", WM8776_PWRDOWN, 3, 1, NULL, 0), | |
110 | ||
111 | SND_SOC_DAPM_OUTPUT("VOUT"), | |
112 | ||
113 | SND_SOC_DAPM_OUTPUT("HPOUTL"), | |
114 | SND_SOC_DAPM_OUTPUT("HPOUTR"), | |
115 | }; | |
116 | ||
117 | static const struct snd_soc_dapm_route routes[] = { | |
118 | { "Input Mixer", "AIN1 Switch", "AIN1" }, | |
119 | { "Input Mixer", "AIN2 Switch", "AIN2" }, | |
120 | { "Input Mixer", "AIN3 Switch", "AIN3" }, | |
121 | { "Input Mixer", "AIN4 Switch", "AIN4" }, | |
122 | { "Input Mixer", "AIN5 Switch", "AIN5" }, | |
123 | ||
124 | { "ADC", NULL, "Input Mixer" }, | |
125 | ||
126 | { "Output Mixer", "DAC Switch", "DAC" }, | |
127 | { "Output Mixer", "AUX Switch", "AUX" }, | |
128 | { "Output Mixer", "Bypass Switch", "Input Mixer" }, | |
129 | ||
130 | { "VOUT", NULL, "Output Mixer" }, | |
131 | ||
132 | { "Headphone PGA", NULL, "Output Mixer" }, | |
133 | ||
134 | { "HPOUTL", NULL, "Headphone PGA" }, | |
135 | { "HPOUTR", NULL, "Headphone PGA" }, | |
136 | }; | |
137 | ||
138 | static int wm8776_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
139 | { | |
140 | struct snd_soc_codec *codec = dai->codec; | |
141 | int reg, iface, master; | |
142 | ||
f0fba2ad | 143 | switch (dai->driver->id) { |
924914ee MB |
144 | case WM8776_DAI_DAC: |
145 | reg = WM8776_DACIFCTRL; | |
146 | master = 0x80; | |
147 | break; | |
148 | case WM8776_DAI_ADC: | |
149 | reg = WM8776_ADCIFCTRL; | |
150 | master = 0x100; | |
151 | break; | |
152 | default: | |
153 | return -EINVAL; | |
154 | } | |
155 | ||
156 | iface = 0; | |
157 | ||
158 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
159 | case SND_SOC_DAIFMT_CBM_CFM: | |
160 | break; | |
161 | case SND_SOC_DAIFMT_CBS_CFS: | |
162 | master = 0; | |
163 | break; | |
164 | default: | |
165 | return -EINVAL; | |
166 | } | |
167 | ||
168 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
169 | case SND_SOC_DAIFMT_I2S: | |
170 | iface |= 0x0002; | |
171 | break; | |
172 | case SND_SOC_DAIFMT_RIGHT_J: | |
173 | break; | |
174 | case SND_SOC_DAIFMT_LEFT_J: | |
175 | iface |= 0x0001; | |
176 | break; | |
924914ee MB |
177 | default: |
178 | return -EINVAL; | |
179 | } | |
180 | ||
181 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
182 | case SND_SOC_DAIFMT_NB_NF: | |
183 | break; | |
184 | case SND_SOC_DAIFMT_IB_IF: | |
185 | iface |= 0x00c; | |
186 | break; | |
187 | case SND_SOC_DAIFMT_IB_NF: | |
188 | iface |= 0x008; | |
189 | break; | |
190 | case SND_SOC_DAIFMT_NB_IF: | |
191 | iface |= 0x004; | |
192 | break; | |
193 | default: | |
194 | return -EINVAL; | |
195 | } | |
196 | ||
197 | /* Finally, write out the values */ | |
198 | snd_soc_update_bits(codec, reg, 0xf, iface); | |
199 | snd_soc_update_bits(codec, WM8776_MSTRCTRL, 0x180, master); | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
204 | static int mclk_ratios[] = { | |
205 | 128, | |
206 | 192, | |
207 | 256, | |
208 | 384, | |
209 | 512, | |
210 | 768, | |
211 | }; | |
212 | ||
213 | static int wm8776_hw_params(struct snd_pcm_substream *substream, | |
214 | struct snd_pcm_hw_params *params, | |
215 | struct snd_soc_dai *dai) | |
216 | { | |
217 | struct snd_soc_codec *codec = dai->codec; | |
b2c812e2 | 218 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
924914ee MB |
219 | int iface_reg, iface; |
220 | int ratio_shift, master; | |
221 | int i; | |
222 | ||
f0fba2ad | 223 | switch (dai->driver->id) { |
924914ee MB |
224 | case WM8776_DAI_DAC: |
225 | iface_reg = WM8776_DACIFCTRL; | |
226 | master = 0x80; | |
227 | ratio_shift = 4; | |
228 | break; | |
229 | case WM8776_DAI_ADC: | |
230 | iface_reg = WM8776_ADCIFCTRL; | |
231 | master = 0x100; | |
232 | ratio_shift = 0; | |
233 | break; | |
234 | default: | |
235 | return -EINVAL; | |
236 | } | |
237 | ||
924914ee | 238 | /* Set word length */ |
d1dc698a TT |
239 | switch (snd_pcm_format_width(params_format(params))) { |
240 | case 16: | |
241 | iface = 0; | |
990fc3d0 | 242 | break; |
d1dc698a TT |
243 | case 20: |
244 | iface = 0x10; | |
924914ee | 245 | break; |
d1dc698a TT |
246 | case 24: |
247 | iface = 0x20; | |
924914ee | 248 | break; |
d1dc698a TT |
249 | case 32: |
250 | iface = 0x30; | |
924914ee | 251 | break; |
d1dc698a TT |
252 | default: |
253 | dev_err(codec->dev, "Unsupported sample size: %i\n", | |
254 | snd_pcm_format_width(params_format(params))); | |
255 | return -EINVAL; | |
924914ee MB |
256 | } |
257 | ||
258 | /* Only need to set MCLK/LRCLK ratio if we're master */ | |
259 | if (snd_soc_read(codec, WM8776_MSTRCTRL) & master) { | |
260 | for (i = 0; i < ARRAY_SIZE(mclk_ratios); i++) { | |
f0fba2ad | 261 | if (wm8776->sysclk[dai->driver->id] / params_rate(params) |
924914ee MB |
262 | == mclk_ratios[i]) |
263 | break; | |
264 | } | |
265 | ||
266 | if (i == ARRAY_SIZE(mclk_ratios)) { | |
267 | dev_err(codec->dev, | |
268 | "Unable to configure MCLK ratio %d/%d\n", | |
f0fba2ad | 269 | wm8776->sysclk[dai->driver->id], params_rate(params)); |
924914ee MB |
270 | return -EINVAL; |
271 | } | |
272 | ||
273 | dev_dbg(codec->dev, "MCLK is %dfs\n", mclk_ratios[i]); | |
274 | ||
275 | snd_soc_update_bits(codec, WM8776_MSTRCTRL, | |
276 | 0x7 << ratio_shift, i << ratio_shift); | |
277 | } else { | |
278 | dev_dbg(codec->dev, "DAI in slave mode\n"); | |
279 | } | |
280 | ||
281 | snd_soc_update_bits(codec, iface_reg, 0x30, iface); | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | static int wm8776_mute(struct snd_soc_dai *dai, int mute) | |
287 | { | |
288 | struct snd_soc_codec *codec = dai->codec; | |
289 | ||
290 | return snd_soc_write(codec, WM8776_DACMUTE, !!mute); | |
291 | } | |
292 | ||
293 | static int wm8776_set_sysclk(struct snd_soc_dai *dai, | |
294 | int clk_id, unsigned int freq, int dir) | |
295 | { | |
296 | struct snd_soc_codec *codec = dai->codec; | |
b2c812e2 | 297 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
924914ee | 298 | |
f0fba2ad | 299 | BUG_ON(dai->driver->id >= ARRAY_SIZE(wm8776->sysclk)); |
924914ee | 300 | |
f0fba2ad | 301 | wm8776->sysclk[dai->driver->id] = freq; |
924914ee MB |
302 | |
303 | return 0; | |
304 | } | |
305 | ||
306 | static int wm8776_set_bias_level(struct snd_soc_codec *codec, | |
307 | enum snd_soc_bias_level level) | |
308 | { | |
309 | switch (level) { | |
310 | case SND_SOC_BIAS_ON: | |
311 | break; | |
312 | case SND_SOC_BIAS_PREPARE: | |
313 | break; | |
314 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 315 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
abe11d0a AL |
316 | snd_soc_cache_sync(codec); |
317 | ||
924914ee MB |
318 | /* Disable the global powerdown; DAPM does the rest */ |
319 | snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 0); | |
320 | } | |
321 | ||
322 | break; | |
323 | case SND_SOC_BIAS_OFF: | |
324 | snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 1); | |
325 | break; | |
326 | } | |
327 | ||
ce6120cc | 328 | codec->dapm.bias_level = level; |
924914ee MB |
329 | return 0; |
330 | } | |
331 | ||
924914ee MB |
332 | #define WM8776_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
333 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
334 | ||
85e7652d | 335 | static const struct snd_soc_dai_ops wm8776_dac_ops = { |
924914ee MB |
336 | .digital_mute = wm8776_mute, |
337 | .hw_params = wm8776_hw_params, | |
338 | .set_fmt = wm8776_set_fmt, | |
339 | .set_sysclk = wm8776_set_sysclk, | |
340 | }; | |
341 | ||
85e7652d | 342 | static const struct snd_soc_dai_ops wm8776_adc_ops = { |
924914ee MB |
343 | .hw_params = wm8776_hw_params, |
344 | .set_fmt = wm8776_set_fmt, | |
345 | .set_sysclk = wm8776_set_sysclk, | |
346 | }; | |
347 | ||
f0fba2ad | 348 | static struct snd_soc_dai_driver wm8776_dai[] = { |
924914ee | 349 | { |
f0fba2ad LG |
350 | .name = "wm8776-hifi-playback", |
351 | .id = WM8776_DAI_DAC, | |
924914ee MB |
352 | .playback = { |
353 | .stream_name = "Playback", | |
354 | .channels_min = 2, | |
355 | .channels_max = 2, | |
0016226d TT |
356 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
357 | .rate_min = 32000, | |
358 | .rate_max = 192000, | |
924914ee MB |
359 | .formats = WM8776_FORMATS, |
360 | }, | |
361 | .ops = &wm8776_dac_ops, | |
362 | }, | |
363 | { | |
f0fba2ad LG |
364 | .name = "wm8776-hifi-capture", |
365 | .id = WM8776_DAI_ADC, | |
924914ee MB |
366 | .capture = { |
367 | .stream_name = "Capture", | |
368 | .channels_min = 2, | |
369 | .channels_max = 2, | |
0016226d TT |
370 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
371 | .rate_min = 32000, | |
372 | .rate_max = 96000, | |
924914ee MB |
373 | .formats = WM8776_FORMATS, |
374 | }, | |
375 | .ops = &wm8776_adc_ops, | |
376 | }, | |
377 | }; | |
924914ee MB |
378 | |
379 | #ifdef CONFIG_PM | |
84b315ee | 380 | static int wm8776_suspend(struct snd_soc_codec *codec) |
924914ee | 381 | { |
924914ee MB |
382 | wm8776_set_bias_level(codec, SND_SOC_BIAS_OFF); |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
f0fba2ad | 387 | static int wm8776_resume(struct snd_soc_codec *codec) |
924914ee | 388 | { |
924914ee | 389 | wm8776_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
924914ee MB |
390 | return 0; |
391 | } | |
392 | #else | |
393 | #define wm8776_suspend NULL | |
394 | #define wm8776_resume NULL | |
395 | #endif | |
396 | ||
f0fba2ad | 397 | static int wm8776_probe(struct snd_soc_codec *codec) |
924914ee | 398 | { |
f0fba2ad | 399 | struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); |
924914ee MB |
400 | int ret = 0; |
401 | ||
f0fba2ad LG |
402 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8776->control_type); |
403 | if (ret < 0) { | |
404 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
405 | return ret; | |
924914ee MB |
406 | } |
407 | ||
f0fba2ad | 408 | ret = wm8776_reset(codec); |
924914ee | 409 | if (ret < 0) { |
f0fba2ad LG |
410 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
411 | return ret; | |
924914ee MB |
412 | } |
413 | ||
f0fba2ad LG |
414 | wm8776_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
415 | ||
416 | /* Latch the update bits; right channel only since we always | |
417 | * update both. */ | |
418 | snd_soc_update_bits(codec, WM8776_HPRVOL, 0x100, 0x100); | |
419 | snd_soc_update_bits(codec, WM8776_DACRVOL, 0x100, 0x100); | |
420 | ||
924914ee | 421 | return ret; |
924914ee MB |
422 | } |
423 | ||
424 | /* power down chip */ | |
f0fba2ad | 425 | static int wm8776_remove(struct snd_soc_codec *codec) |
924914ee | 426 | { |
f0fba2ad | 427 | wm8776_set_bias_level(codec, SND_SOC_BIAS_OFF); |
924914ee MB |
428 | return 0; |
429 | } | |
430 | ||
f0fba2ad | 431 | static struct snd_soc_codec_driver soc_codec_dev_wm8776 = { |
924914ee MB |
432 | .probe = wm8776_probe, |
433 | .remove = wm8776_remove, | |
434 | .suspend = wm8776_suspend, | |
435 | .resume = wm8776_resume, | |
f0fba2ad | 436 | .set_bias_level = wm8776_set_bias_level, |
e5eec34c | 437 | .reg_cache_size = ARRAY_SIZE(wm8776_reg), |
f0fba2ad LG |
438 | .reg_word_size = sizeof(u16), |
439 | .reg_cache_default = wm8776_reg, | |
1db3c98e MB |
440 | |
441 | .controls = wm8776_snd_controls, | |
442 | .num_controls = ARRAY_SIZE(wm8776_snd_controls), | |
443 | .dapm_widgets = wm8776_dapm_widgets, | |
444 | .num_dapm_widgets = ARRAY_SIZE(wm8776_dapm_widgets), | |
445 | .dapm_routes = routes, | |
446 | .num_dapm_routes = ARRAY_SIZE(routes), | |
924914ee | 447 | }; |
924914ee | 448 | |
b6de4315 MB |
449 | static const struct of_device_id wm8776_of_match[] = { |
450 | { .compatible = "wlf,wm8776", }, | |
451 | { } | |
452 | }; | |
453 | MODULE_DEVICE_TABLE(of, wm8776_of_match); | |
454 | ||
924914ee | 455 | #if defined(CONFIG_SPI_MASTER) |
924914ee MB |
456 | static int __devinit wm8776_spi_probe(struct spi_device *spi) |
457 | { | |
924914ee | 458 | struct wm8776_priv *wm8776; |
f0fba2ad | 459 | int ret; |
924914ee | 460 | |
bf97ca9a MB |
461 | wm8776 = devm_kzalloc(&spi->dev, sizeof(struct wm8776_priv), |
462 | GFP_KERNEL); | |
924914ee MB |
463 | if (wm8776 == NULL) |
464 | return -ENOMEM; | |
465 | ||
f0fba2ad LG |
466 | wm8776->control_type = SND_SOC_SPI; |
467 | spi_set_drvdata(spi, wm8776); | |
924914ee | 468 | |
f0fba2ad LG |
469 | ret = snd_soc_register_codec(&spi->dev, |
470 | &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai)); | |
bf97ca9a | 471 | |
f0fba2ad | 472 | return ret; |
924914ee MB |
473 | } |
474 | ||
475 | static int __devexit wm8776_spi_remove(struct spi_device *spi) | |
476 | { | |
f0fba2ad | 477 | snd_soc_unregister_codec(&spi->dev); |
924914ee MB |
478 | return 0; |
479 | } | |
480 | ||
924914ee MB |
481 | static struct spi_driver wm8776_spi_driver = { |
482 | .driver = { | |
1e3ad571 | 483 | .name = "wm8776", |
924914ee | 484 | .owner = THIS_MODULE, |
b6de4315 | 485 | .of_match_table = wm8776_of_match, |
924914ee MB |
486 | }, |
487 | .probe = wm8776_spi_probe, | |
924914ee MB |
488 | .remove = __devexit_p(wm8776_spi_remove), |
489 | }; | |
490 | #endif /* CONFIG_SPI_MASTER */ | |
491 | ||
492 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
493 | static __devinit int wm8776_i2c_probe(struct i2c_client *i2c, | |
494 | const struct i2c_device_id *id) | |
495 | { | |
496 | struct wm8776_priv *wm8776; | |
f0fba2ad | 497 | int ret; |
924914ee | 498 | |
bf97ca9a MB |
499 | wm8776 = devm_kzalloc(&i2c->dev, sizeof(struct wm8776_priv), |
500 | GFP_KERNEL); | |
924914ee MB |
501 | if (wm8776 == NULL) |
502 | return -ENOMEM; | |
503 | ||
924914ee | 504 | i2c_set_clientdata(i2c, wm8776); |
f0fba2ad | 505 | wm8776->control_type = SND_SOC_I2C; |
924914ee | 506 | |
f0fba2ad LG |
507 | ret = snd_soc_register_codec(&i2c->dev, |
508 | &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai)); | |
bf97ca9a | 509 | |
f0fba2ad | 510 | return ret; |
924914ee MB |
511 | } |
512 | ||
513 | static __devexit int wm8776_i2c_remove(struct i2c_client *client) | |
514 | { | |
f0fba2ad | 515 | snd_soc_unregister_codec(&client->dev); |
924914ee MB |
516 | return 0; |
517 | } | |
518 | ||
924914ee | 519 | static const struct i2c_device_id wm8776_i2c_id[] = { |
fdd48f9d MB |
520 | { "wm8775", WM8775 }, |
521 | { "wm8776", WM8776 }, | |
924914ee MB |
522 | { } |
523 | }; | |
524 | MODULE_DEVICE_TABLE(i2c, wm8776_i2c_id); | |
525 | ||
526 | static struct i2c_driver wm8776_i2c_driver = { | |
527 | .driver = { | |
1e3ad571 | 528 | .name = "wm8776", |
924914ee | 529 | .owner = THIS_MODULE, |
b6de4315 | 530 | .of_match_table = wm8776_of_match, |
924914ee MB |
531 | }, |
532 | .probe = wm8776_i2c_probe, | |
533 | .remove = __devexit_p(wm8776_i2c_remove), | |
924914ee MB |
534 | .id_table = wm8776_i2c_id, |
535 | }; | |
536 | #endif | |
537 | ||
538 | static int __init wm8776_modinit(void) | |
539 | { | |
f0fba2ad | 540 | int ret = 0; |
924914ee MB |
541 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
542 | ret = i2c_add_driver(&wm8776_i2c_driver); | |
543 | if (ret != 0) { | |
f0fba2ad | 544 | printk(KERN_ERR "Failed to register wm8776 I2C driver: %d\n", |
924914ee MB |
545 | ret); |
546 | } | |
547 | #endif | |
548 | #if defined(CONFIG_SPI_MASTER) | |
549 | ret = spi_register_driver(&wm8776_spi_driver); | |
550 | if (ret != 0) { | |
f0fba2ad | 551 | printk(KERN_ERR "Failed to register wm8776 SPI driver: %d\n", |
924914ee MB |
552 | ret); |
553 | } | |
554 | #endif | |
f0fba2ad | 555 | return ret; |
924914ee MB |
556 | } |
557 | module_init(wm8776_modinit); | |
558 | ||
559 | static void __exit wm8776_exit(void) | |
560 | { | |
561 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
562 | i2c_del_driver(&wm8776_i2c_driver); | |
563 | #endif | |
564 | #if defined(CONFIG_SPI_MASTER) | |
565 | spi_unregister_driver(&wm8776_spi_driver); | |
566 | #endif | |
567 | } | |
568 | module_exit(wm8776_exit); | |
569 | ||
570 | MODULE_DESCRIPTION("ASoC WM8776 driver"); | |
571 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
572 | MODULE_LICENSE("GPL"); |