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Commit | Line | Data |
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bd6d4177 MA |
1 | /* |
2 | * wm8711.c -- WM8711 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2006 Wolfson Microelectronics | |
5 | * | |
6 | * Author: Mike Arthur <linux@wolfsonmicro.com> | |
7 | * | |
8 | * Based on wm8731.c by Richard Purdie | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
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> | |
21 | #include <linux/platform_device.h> | |
bb262767 | 22 | #include <linux/spi/spi.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
bd6d4177 MA |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
b5ab887e | 28 | #include <sound/tlv.h> |
bd6d4177 MA |
29 | #include <sound/initval.h> |
30 | ||
31 | #include "wm8711.h" | |
32 | ||
bd6d4177 MA |
33 | /* codec private data */ |
34 | struct wm8711_priv { | |
f0fba2ad | 35 | enum snd_soc_control_type bus_type; |
bd6d4177 MA |
36 | unsigned int sysclk; |
37 | }; | |
38 | ||
39 | /* | |
40 | * wm8711 register cache | |
41 | * We can't read the WM8711 register space when we are | |
42 | * using 2 wire for device control, so we cache them instead. | |
43 | * There is no point in caching the reset register | |
44 | */ | |
45 | static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { | |
46 | 0x0079, 0x0079, 0x000a, 0x0008, | |
47 | 0x009f, 0x000a, 0x0000, 0x0000 | |
48 | }; | |
49 | ||
d97d2e35 | 50 | #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) |
bd6d4177 | 51 | |
b5ab887e MB |
52 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
53 | ||
bd6d4177 MA |
54 | static const struct snd_kcontrol_new wm8711_snd_controls[] = { |
55 | ||
b5ab887e MB |
56 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, |
57 | 0, 127, 0, out_tlv), | |
bd6d4177 MA |
58 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, |
59 | 7, 1, 0), | |
60 | ||
61 | }; | |
62 | ||
bd6d4177 MA |
63 | /* Output Mixer */ |
64 | static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { | |
65 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), | |
66 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), | |
67 | }; | |
68 | ||
69 | static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { | |
70 | SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, | |
71 | &wm8711_output_mixer_controls[0], | |
72 | ARRAY_SIZE(wm8711_output_mixer_controls)), | |
73 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), | |
74 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
75 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
76 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
77 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
78 | }; | |
79 | ||
20314000 | 80 | static const struct snd_soc_dapm_route wm8711_intercon[] = { |
bd6d4177 MA |
81 | /* output mixer */ |
82 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
83 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
84 | ||
85 | /* outputs */ | |
86 | {"RHPOUT", NULL, "Output Mixer"}, | |
87 | {"ROUT", NULL, "Output Mixer"}, | |
88 | {"LHPOUT", NULL, "Output Mixer"}, | |
89 | {"LOUT", NULL, "Output Mixer"}, | |
90 | }; | |
91 | ||
bd6d4177 MA |
92 | struct _coeff_div { |
93 | u32 mclk; | |
94 | u32 rate; | |
95 | u16 fs; | |
96 | u8 sr:4; | |
97 | u8 bosr:1; | |
98 | u8 usb:1; | |
99 | }; | |
100 | ||
101 | /* codec mclk clock divider coefficients */ | |
102 | static const struct _coeff_div coeff_div[] = { | |
103 | /* 48k */ | |
104 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
105 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
106 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
107 | ||
108 | /* 32k */ | |
109 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
110 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
111 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, | |
112 | ||
113 | /* 8k */ | |
114 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
115 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
116 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
117 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
118 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
119 | ||
120 | /* 96k */ | |
121 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
122 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
123 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
124 | ||
125 | /* 44.1k */ | |
126 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
127 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
128 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
129 | ||
130 | /* 88.2k */ | |
131 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
132 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
133 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
134 | }; | |
135 | ||
136 | static inline int get_coeff(int mclk, int rate) | |
137 | { | |
138 | int i; | |
139 | ||
140 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
141 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
142 | return i; | |
143 | } | |
144 | return 0; | |
145 | } | |
146 | ||
147 | static int wm8711_hw_params(struct snd_pcm_substream *substream, | |
148 | struct snd_pcm_hw_params *params, | |
149 | struct snd_soc_dai *dai) | |
150 | { | |
151 | struct snd_soc_codec *codec = dai->codec; | |
f0fba2ad | 152 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
d97d2e35 | 153 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; |
bd6d4177 MA |
154 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
155 | u16 srate = (coeff_div[i].sr << 2) | | |
156 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
157 | ||
d97d2e35 | 158 | snd_soc_write(codec, WM8711_SRATE, srate); |
bd6d4177 MA |
159 | |
160 | /* bit size */ | |
161 | switch (params_format(params)) { | |
162 | case SNDRV_PCM_FORMAT_S16_LE: | |
163 | break; | |
164 | case SNDRV_PCM_FORMAT_S20_3LE: | |
165 | iface |= 0x0004; | |
166 | break; | |
167 | case SNDRV_PCM_FORMAT_S24_LE: | |
168 | iface |= 0x0008; | |
169 | break; | |
170 | } | |
171 | ||
d97d2e35 | 172 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
173 | return 0; |
174 | } | |
175 | ||
176 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, | |
177 | struct snd_soc_dai *dai) | |
178 | { | |
179 | struct snd_soc_codec *codec = dai->codec; | |
180 | ||
181 | /* set active */ | |
d97d2e35 | 182 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
bd6d4177 MA |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
187 | static void wm8711_shutdown(struct snd_pcm_substream *substream, | |
188 | struct snd_soc_dai *dai) | |
189 | { | |
190 | struct snd_soc_codec *codec = dai->codec; | |
191 | ||
192 | /* deactivate */ | |
193 | if (!codec->active) { | |
194 | udelay(50); | |
d97d2e35 | 195 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
196 | } |
197 | } | |
198 | ||
199 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) | |
200 | { | |
201 | struct snd_soc_codec *codec = dai->codec; | |
d97d2e35 | 202 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
bd6d4177 MA |
203 | |
204 | if (mute) | |
d97d2e35 | 205 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
bd6d4177 | 206 | else |
d97d2e35 | 207 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
bd6d4177 MA |
208 | |
209 | return 0; | |
210 | } | |
211 | ||
212 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
213 | int clk_id, unsigned int freq, int dir) | |
214 | { | |
215 | struct snd_soc_codec *codec = codec_dai->codec; | |
f0fba2ad | 216 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
bd6d4177 MA |
217 | |
218 | switch (freq) { | |
219 | case 11289600: | |
220 | case 12000000: | |
221 | case 12288000: | |
222 | case 16934400: | |
223 | case 18432000: | |
224 | wm8711->sysclk = freq; | |
225 | return 0; | |
226 | } | |
227 | return -EINVAL; | |
228 | } | |
229 | ||
230 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
231 | unsigned int fmt) | |
232 | { | |
233 | struct snd_soc_codec *codec = codec_dai->codec; | |
234 | u16 iface = 0; | |
235 | ||
236 | /* set master/slave audio interface */ | |
237 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
238 | case SND_SOC_DAIFMT_CBM_CFM: | |
239 | iface |= 0x0040; | |
240 | break; | |
241 | case SND_SOC_DAIFMT_CBS_CFS: | |
242 | break; | |
243 | default: | |
244 | return -EINVAL; | |
245 | } | |
246 | ||
247 | /* interface format */ | |
248 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
249 | case SND_SOC_DAIFMT_I2S: | |
250 | iface |= 0x0002; | |
251 | break; | |
252 | case SND_SOC_DAIFMT_RIGHT_J: | |
253 | break; | |
254 | case SND_SOC_DAIFMT_LEFT_J: | |
255 | iface |= 0x0001; | |
256 | break; | |
257 | case SND_SOC_DAIFMT_DSP_A: | |
258 | iface |= 0x0003; | |
259 | break; | |
260 | case SND_SOC_DAIFMT_DSP_B: | |
261 | iface |= 0x0013; | |
262 | break; | |
263 | default: | |
264 | return -EINVAL; | |
265 | } | |
266 | ||
267 | /* clock inversion */ | |
268 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
269 | case SND_SOC_DAIFMT_NB_NF: | |
270 | break; | |
271 | case SND_SOC_DAIFMT_IB_IF: | |
272 | iface |= 0x0090; | |
273 | break; | |
274 | case SND_SOC_DAIFMT_IB_NF: | |
275 | iface |= 0x0080; | |
276 | break; | |
277 | case SND_SOC_DAIFMT_NB_IF: | |
278 | iface |= 0x0010; | |
279 | break; | |
280 | default: | |
281 | return -EINVAL; | |
282 | } | |
283 | ||
284 | /* set iface */ | |
d97d2e35 | 285 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
286 | return 0; |
287 | } | |
288 | ||
289 | ||
290 | static int wm8711_set_bias_level(struct snd_soc_codec *codec, | |
291 | enum snd_soc_bias_level level) | |
292 | { | |
d97d2e35 | 293 | u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; |
bd6d4177 MA |
294 | |
295 | switch (level) { | |
296 | case SND_SOC_BIAS_ON: | |
d97d2e35 | 297 | snd_soc_write(codec, WM8711_PWR, reg); |
bd6d4177 MA |
298 | break; |
299 | case SND_SOC_BIAS_PREPARE: | |
300 | break; | |
301 | case SND_SOC_BIAS_STANDBY: | |
d97d2e35 | 302 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
bd6d4177 MA |
303 | break; |
304 | case SND_SOC_BIAS_OFF: | |
d97d2e35 MB |
305 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
306 | snd_soc_write(codec, WM8711_PWR, 0xffff); | |
bd6d4177 MA |
307 | break; |
308 | } | |
ce6120cc | 309 | codec->dapm.bias_level = level; |
bd6d4177 MA |
310 | return 0; |
311 | } | |
312 | ||
431f7771 | 313 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
bd6d4177 MA |
314 | |
315 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
316 | SNDRV_PCM_FMTBIT_S24_LE) | |
317 | ||
318 | static struct snd_soc_dai_ops wm8711_ops = { | |
319 | .prepare = wm8711_pcm_prepare, | |
320 | .hw_params = wm8711_hw_params, | |
321 | .shutdown = wm8711_shutdown, | |
322 | .digital_mute = wm8711_mute, | |
323 | .set_sysclk = wm8711_set_dai_sysclk, | |
324 | .set_fmt = wm8711_set_dai_fmt, | |
325 | }; | |
326 | ||
f0fba2ad LG |
327 | static struct snd_soc_dai_driver wm8711_dai = { |
328 | .name = "wm8711-hifi", | |
bd6d4177 MA |
329 | .playback = { |
330 | .stream_name = "Playback", | |
331 | .channels_min = 1, | |
332 | .channels_max = 2, | |
333 | .rates = WM8711_RATES, | |
431f7771 MB |
334 | .formats = WM8711_FORMATS, |
335 | }, | |
bd6d4177 MA |
336 | .ops = &wm8711_ops, |
337 | }; | |
bd6d4177 | 338 | |
f0fba2ad | 339 | static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) |
bd6d4177 | 340 | { |
d97d2e35 | 341 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
342 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
343 | return 0; | |
344 | } | |
345 | ||
f0fba2ad | 346 | static int wm8711_resume(struct snd_soc_codec *codec) |
bd6d4177 | 347 | { |
bd6d4177 MA |
348 | int i; |
349 | u8 data[2]; | |
350 | u16 *cache = codec->reg_cache; | |
351 | ||
352 | /* Sync reg_cache with the hardware */ | |
353 | for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) { | |
354 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
355 | data[1] = cache[i] & 0x00ff; | |
356 | codec->hw_write(codec->control_data, data, 2); | |
357 | } | |
358 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
29e189c2 | 359 | |
bd6d4177 MA |
360 | return 0; |
361 | } | |
362 | ||
f0fba2ad | 363 | static int wm8711_probe(struct snd_soc_codec *codec) |
bd6d4177 | 364 | { |
f0fba2ad LG |
365 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
366 | int ret, reg; | |
bd6d4177 | 367 | |
f0fba2ad | 368 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); |
d97d2e35 MB |
369 | if (ret < 0) { |
370 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 371 | return ret; |
d97d2e35 MB |
372 | } |
373 | ||
318b0b8d | 374 | ret = wm8711_reset(codec); |
bd6d4177 | 375 | if (ret < 0) { |
318b0b8d | 376 | dev_err(codec->dev, "Failed to issue reset\n"); |
f0fba2ad | 377 | return ret; |
bd6d4177 | 378 | } |
bd6d4177 | 379 | |
318b0b8d MB |
380 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
381 | ||
382 | /* Latch the update bits */ | |
d97d2e35 MB |
383 | reg = snd_soc_read(codec, WM8711_LOUT1V); |
384 | snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); | |
385 | reg = snd_soc_read(codec, WM8711_ROUT1V); | |
386 | snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); | |
318b0b8d | 387 | |
f0fba2ad LG |
388 | snd_soc_add_controls(codec, wm8711_snd_controls, |
389 | ARRAY_SIZE(wm8711_snd_controls)); | |
d97d2e35 | 390 | |
d97d2e35 | 391 | return ret; |
f0fba2ad | 392 | |
bd6d4177 MA |
393 | } |
394 | ||
f0fba2ad LG |
395 | /* power down chip */ |
396 | static int wm8711_remove(struct snd_soc_codec *codec) | |
bd6d4177 | 397 | { |
f0fba2ad LG |
398 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
399 | return 0; | |
bd6d4177 MA |
400 | } |
401 | ||
f0fba2ad LG |
402 | static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { |
403 | .probe = wm8711_probe, | |
404 | .remove = wm8711_remove, | |
405 | .suspend = wm8711_suspend, | |
406 | .resume = wm8711_resume, | |
407 | .set_bias_level = wm8711_set_bias_level, | |
e5eec34c | 408 | .reg_cache_size = ARRAY_SIZE(wm8711_reg), |
f0fba2ad LG |
409 | .reg_word_size = sizeof(u16), |
410 | .reg_cache_default = wm8711_reg, | |
20314000 LG |
411 | .dapm_widgets = wm8711_dapm_widgets, |
412 | .num_dapm_widgets = ARRAY_SIZE(wm8711_dapm_widgets), | |
413 | .dapm_routes = wm8711_intercon, | |
414 | .num_dapm_routes = ARRAY_SIZE(wm8711_intercon), | |
f0fba2ad LG |
415 | }; |
416 | ||
08aff8cd MB |
417 | #if defined(CONFIG_SPI_MASTER) |
418 | static int __devinit wm8711_spi_probe(struct spi_device *spi) | |
419 | { | |
08aff8cd | 420 | struct wm8711_priv *wm8711; |
f0fba2ad | 421 | int ret; |
08aff8cd MB |
422 | |
423 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
424 | if (wm8711 == NULL) | |
425 | return -ENOMEM; | |
426 | ||
f0fba2ad | 427 | spi_set_drvdata(spi, wm8711); |
f0fba2ad | 428 | wm8711->bus_type = SND_SOC_SPI; |
08aff8cd | 429 | |
f0fba2ad LG |
430 | ret = snd_soc_register_codec(&spi->dev, |
431 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
432 | if (ret < 0) | |
433 | kfree(wm8711); | |
434 | return ret; | |
08aff8cd MB |
435 | } |
436 | ||
437 | static int __devexit wm8711_spi_remove(struct spi_device *spi) | |
438 | { | |
f0fba2ad LG |
439 | snd_soc_unregister_codec(&spi->dev); |
440 | kfree(spi_get_drvdata(spi)); | |
08aff8cd MB |
441 | return 0; |
442 | } | |
443 | ||
08aff8cd MB |
444 | static struct spi_driver wm8711_spi_driver = { |
445 | .driver = { | |
f0fba2ad | 446 | .name = "wm8711-codec", |
08aff8cd MB |
447 | .owner = THIS_MODULE, |
448 | }, | |
449 | .probe = wm8711_spi_probe, | |
08aff8cd MB |
450 | .remove = __devexit_p(wm8711_spi_remove), |
451 | }; | |
452 | #endif /* CONFIG_SPI_MASTER */ | |
453 | ||
318b0b8d | 454 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 455 | static __devinit int wm8711_i2c_probe(struct i2c_client *client, |
318b0b8d | 456 | const struct i2c_device_id *id) |
bd6d4177 | 457 | { |
bd6d4177 | 458 | struct wm8711_priv *wm8711; |
f0fba2ad | 459 | int ret; |
bd6d4177 MA |
460 | |
461 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
318b0b8d | 462 | if (wm8711 == NULL) |
bd6d4177 | 463 | return -ENOMEM; |
bd6d4177 | 464 | |
f0fba2ad | 465 | i2c_set_clientdata(client, wm8711); |
f0fba2ad | 466 | wm8711->bus_type = SND_SOC_I2C; |
bd6d4177 | 467 | |
f0fba2ad LG |
468 | ret = snd_soc_register_codec(&client->dev, |
469 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
470 | if (ret < 0) | |
471 | kfree(wm8711); | |
472 | return ret; | |
318b0b8d | 473 | } |
bd6d4177 | 474 | |
318b0b8d MB |
475 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
476 | { | |
f0fba2ad LG |
477 | snd_soc_unregister_codec(&client->dev); |
478 | kfree(i2c_get_clientdata(client)); | |
bd6d4177 MA |
479 | return 0; |
480 | } | |
481 | ||
318b0b8d MB |
482 | static const struct i2c_device_id wm8711_i2c_id[] = { |
483 | { "wm8711", 0 }, | |
484 | { } | |
bd6d4177 | 485 | }; |
318b0b8d MB |
486 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
487 | ||
488 | static struct i2c_driver wm8711_i2c_driver = { | |
489 | .driver = { | |
f0fba2ad | 490 | .name = "wm8711-codec", |
318b0b8d MB |
491 | .owner = THIS_MODULE, |
492 | }, | |
493 | .probe = wm8711_i2c_probe, | |
494 | .remove = __devexit_p(wm8711_i2c_remove), | |
495 | .id_table = wm8711_i2c_id, | |
496 | }; | |
497 | #endif | |
bd6d4177 MA |
498 | |
499 | static int __init wm8711_modinit(void) | |
500 | { | |
318b0b8d MB |
501 | int ret; |
502 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
503 | ret = i2c_add_driver(&wm8711_i2c_driver); | |
504 | if (ret != 0) { | |
505 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", | |
506 | ret); | |
507 | } | |
08aff8cd MB |
508 | #endif |
509 | #if defined(CONFIG_SPI_MASTER) | |
bb262767 | 510 | ret = spi_register_driver(&wm8711_spi_driver); |
08aff8cd | 511 | if (ret != 0) { |
bb262767 | 512 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
08aff8cd MB |
513 | ret); |
514 | } | |
318b0b8d MB |
515 | #endif |
516 | return 0; | |
bd6d4177 MA |
517 | } |
518 | module_init(wm8711_modinit); | |
519 | ||
520 | static void __exit wm8711_exit(void) | |
521 | { | |
318b0b8d MB |
522 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
523 | i2c_del_driver(&wm8711_i2c_driver); | |
524 | #endif | |
08aff8cd | 525 | #if defined(CONFIG_SPI_MASTER) |
bb262767 | 526 | spi_unregister_driver(&wm8711_spi_driver); |
08aff8cd | 527 | #endif |
bd6d4177 MA |
528 | } |
529 | module_exit(wm8711_exit); | |
530 | ||
531 | MODULE_DESCRIPTION("ASoC WM8711 driver"); | |
532 | MODULE_AUTHOR("Mike Arthur"); | |
533 | MODULE_LICENSE("GPL"); |