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 | ||
80 | static const struct snd_soc_dapm_route intercon[] = { | |
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 | ||
92 | static int wm8711_add_widgets(struct snd_soc_codec *codec) | |
93 | { | |
ce6120cc | 94 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
bd6d4177 | 95 | |
ce6120cc LG |
96 | snd_soc_dapm_new_controls(dapm, wm8711_dapm_widgets, |
97 | ARRAY_SIZE(wm8711_dapm_widgets)); | |
98 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
bd6d4177 | 99 | |
bd6d4177 MA |
100 | return 0; |
101 | } | |
102 | ||
103 | struct _coeff_div { | |
104 | u32 mclk; | |
105 | u32 rate; | |
106 | u16 fs; | |
107 | u8 sr:4; | |
108 | u8 bosr:1; | |
109 | u8 usb:1; | |
110 | }; | |
111 | ||
112 | /* codec mclk clock divider coefficients */ | |
113 | static const struct _coeff_div coeff_div[] = { | |
114 | /* 48k */ | |
115 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
116 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
117 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
118 | ||
119 | /* 32k */ | |
120 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
121 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
122 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, | |
123 | ||
124 | /* 8k */ | |
125 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
126 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
127 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
128 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
129 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
130 | ||
131 | /* 96k */ | |
132 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
133 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
134 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
135 | ||
136 | /* 44.1k */ | |
137 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
138 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
139 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
140 | ||
141 | /* 88.2k */ | |
142 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
143 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
144 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
145 | }; | |
146 | ||
147 | static inline int get_coeff(int mclk, int rate) | |
148 | { | |
149 | int i; | |
150 | ||
151 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
152 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
153 | return i; | |
154 | } | |
155 | return 0; | |
156 | } | |
157 | ||
158 | static int wm8711_hw_params(struct snd_pcm_substream *substream, | |
159 | struct snd_pcm_hw_params *params, | |
160 | struct snd_soc_dai *dai) | |
161 | { | |
162 | struct snd_soc_codec *codec = dai->codec; | |
f0fba2ad | 163 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
d97d2e35 | 164 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; |
bd6d4177 MA |
165 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
166 | u16 srate = (coeff_div[i].sr << 2) | | |
167 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
168 | ||
d97d2e35 | 169 | snd_soc_write(codec, WM8711_SRATE, srate); |
bd6d4177 MA |
170 | |
171 | /* bit size */ | |
172 | switch (params_format(params)) { | |
173 | case SNDRV_PCM_FORMAT_S16_LE: | |
174 | break; | |
175 | case SNDRV_PCM_FORMAT_S20_3LE: | |
176 | iface |= 0x0004; | |
177 | break; | |
178 | case SNDRV_PCM_FORMAT_S24_LE: | |
179 | iface |= 0x0008; | |
180 | break; | |
181 | } | |
182 | ||
d97d2e35 | 183 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
184 | return 0; |
185 | } | |
186 | ||
187 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, | |
188 | struct snd_soc_dai *dai) | |
189 | { | |
190 | struct snd_soc_codec *codec = dai->codec; | |
191 | ||
192 | /* set active */ | |
d97d2e35 | 193 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
bd6d4177 MA |
194 | |
195 | return 0; | |
196 | } | |
197 | ||
198 | static void wm8711_shutdown(struct snd_pcm_substream *substream, | |
199 | struct snd_soc_dai *dai) | |
200 | { | |
201 | struct snd_soc_codec *codec = dai->codec; | |
202 | ||
203 | /* deactivate */ | |
204 | if (!codec->active) { | |
205 | udelay(50); | |
d97d2e35 | 206 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
207 | } |
208 | } | |
209 | ||
210 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) | |
211 | { | |
212 | struct snd_soc_codec *codec = dai->codec; | |
d97d2e35 | 213 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
bd6d4177 MA |
214 | |
215 | if (mute) | |
d97d2e35 | 216 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
bd6d4177 | 217 | else |
d97d2e35 | 218 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
bd6d4177 MA |
219 | |
220 | return 0; | |
221 | } | |
222 | ||
223 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
224 | int clk_id, unsigned int freq, int dir) | |
225 | { | |
226 | struct snd_soc_codec *codec = codec_dai->codec; | |
f0fba2ad | 227 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
bd6d4177 MA |
228 | |
229 | switch (freq) { | |
230 | case 11289600: | |
231 | case 12000000: | |
232 | case 12288000: | |
233 | case 16934400: | |
234 | case 18432000: | |
235 | wm8711->sysclk = freq; | |
236 | return 0; | |
237 | } | |
238 | return -EINVAL; | |
239 | } | |
240 | ||
241 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
242 | unsigned int fmt) | |
243 | { | |
244 | struct snd_soc_codec *codec = codec_dai->codec; | |
245 | u16 iface = 0; | |
246 | ||
247 | /* set master/slave audio interface */ | |
248 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
249 | case SND_SOC_DAIFMT_CBM_CFM: | |
250 | iface |= 0x0040; | |
251 | break; | |
252 | case SND_SOC_DAIFMT_CBS_CFS: | |
253 | break; | |
254 | default: | |
255 | return -EINVAL; | |
256 | } | |
257 | ||
258 | /* interface format */ | |
259 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
260 | case SND_SOC_DAIFMT_I2S: | |
261 | iface |= 0x0002; | |
262 | break; | |
263 | case SND_SOC_DAIFMT_RIGHT_J: | |
264 | break; | |
265 | case SND_SOC_DAIFMT_LEFT_J: | |
266 | iface |= 0x0001; | |
267 | break; | |
268 | case SND_SOC_DAIFMT_DSP_A: | |
269 | iface |= 0x0003; | |
270 | break; | |
271 | case SND_SOC_DAIFMT_DSP_B: | |
272 | iface |= 0x0013; | |
273 | break; | |
274 | default: | |
275 | return -EINVAL; | |
276 | } | |
277 | ||
278 | /* clock inversion */ | |
279 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
280 | case SND_SOC_DAIFMT_NB_NF: | |
281 | break; | |
282 | case SND_SOC_DAIFMT_IB_IF: | |
283 | iface |= 0x0090; | |
284 | break; | |
285 | case SND_SOC_DAIFMT_IB_NF: | |
286 | iface |= 0x0080; | |
287 | break; | |
288 | case SND_SOC_DAIFMT_NB_IF: | |
289 | iface |= 0x0010; | |
290 | break; | |
291 | default: | |
292 | return -EINVAL; | |
293 | } | |
294 | ||
295 | /* set iface */ | |
d97d2e35 | 296 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
297 | return 0; |
298 | } | |
299 | ||
300 | ||
301 | static int wm8711_set_bias_level(struct snd_soc_codec *codec, | |
302 | enum snd_soc_bias_level level) | |
303 | { | |
d97d2e35 | 304 | u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; |
bd6d4177 MA |
305 | |
306 | switch (level) { | |
307 | case SND_SOC_BIAS_ON: | |
d97d2e35 | 308 | snd_soc_write(codec, WM8711_PWR, reg); |
bd6d4177 MA |
309 | break; |
310 | case SND_SOC_BIAS_PREPARE: | |
311 | break; | |
312 | case SND_SOC_BIAS_STANDBY: | |
d97d2e35 | 313 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
bd6d4177 MA |
314 | break; |
315 | case SND_SOC_BIAS_OFF: | |
d97d2e35 MB |
316 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
317 | snd_soc_write(codec, WM8711_PWR, 0xffff); | |
bd6d4177 MA |
318 | break; |
319 | } | |
ce6120cc | 320 | codec->dapm.bias_level = level; |
bd6d4177 MA |
321 | return 0; |
322 | } | |
323 | ||
431f7771 | 324 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
bd6d4177 MA |
325 | |
326 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
327 | SNDRV_PCM_FMTBIT_S24_LE) | |
328 | ||
329 | static struct snd_soc_dai_ops wm8711_ops = { | |
330 | .prepare = wm8711_pcm_prepare, | |
331 | .hw_params = wm8711_hw_params, | |
332 | .shutdown = wm8711_shutdown, | |
333 | .digital_mute = wm8711_mute, | |
334 | .set_sysclk = wm8711_set_dai_sysclk, | |
335 | .set_fmt = wm8711_set_dai_fmt, | |
336 | }; | |
337 | ||
f0fba2ad LG |
338 | static struct snd_soc_dai_driver wm8711_dai = { |
339 | .name = "wm8711-hifi", | |
bd6d4177 MA |
340 | .playback = { |
341 | .stream_name = "Playback", | |
342 | .channels_min = 1, | |
343 | .channels_max = 2, | |
344 | .rates = WM8711_RATES, | |
431f7771 MB |
345 | .formats = WM8711_FORMATS, |
346 | }, | |
bd6d4177 MA |
347 | .ops = &wm8711_ops, |
348 | }; | |
bd6d4177 | 349 | |
f0fba2ad | 350 | static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) |
bd6d4177 | 351 | { |
d97d2e35 | 352 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
353 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
354 | return 0; | |
355 | } | |
356 | ||
f0fba2ad | 357 | static int wm8711_resume(struct snd_soc_codec *codec) |
bd6d4177 | 358 | { |
bd6d4177 MA |
359 | int i; |
360 | u8 data[2]; | |
361 | u16 *cache = codec->reg_cache; | |
362 | ||
363 | /* Sync reg_cache with the hardware */ | |
364 | for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) { | |
365 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
366 | data[1] = cache[i] & 0x00ff; | |
367 | codec->hw_write(codec->control_data, data, 2); | |
368 | } | |
369 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
29e189c2 | 370 | |
bd6d4177 MA |
371 | return 0; |
372 | } | |
373 | ||
f0fba2ad | 374 | static int wm8711_probe(struct snd_soc_codec *codec) |
bd6d4177 | 375 | { |
f0fba2ad LG |
376 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
377 | int ret, reg; | |
bd6d4177 | 378 | |
f0fba2ad | 379 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); |
d97d2e35 MB |
380 | if (ret < 0) { |
381 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 382 | return ret; |
d97d2e35 MB |
383 | } |
384 | ||
318b0b8d | 385 | ret = wm8711_reset(codec); |
bd6d4177 | 386 | if (ret < 0) { |
318b0b8d | 387 | dev_err(codec->dev, "Failed to issue reset\n"); |
f0fba2ad | 388 | return ret; |
bd6d4177 | 389 | } |
bd6d4177 | 390 | |
318b0b8d MB |
391 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
392 | ||
393 | /* Latch the update bits */ | |
d97d2e35 MB |
394 | reg = snd_soc_read(codec, WM8711_LOUT1V); |
395 | snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); | |
396 | reg = snd_soc_read(codec, WM8711_ROUT1V); | |
397 | snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); | |
318b0b8d | 398 | |
f0fba2ad LG |
399 | snd_soc_add_controls(codec, wm8711_snd_controls, |
400 | ARRAY_SIZE(wm8711_snd_controls)); | |
401 | wm8711_add_widgets(codec); | |
d97d2e35 | 402 | |
d97d2e35 | 403 | return ret; |
f0fba2ad | 404 | |
bd6d4177 MA |
405 | } |
406 | ||
f0fba2ad LG |
407 | /* power down chip */ |
408 | static int wm8711_remove(struct snd_soc_codec *codec) | |
bd6d4177 | 409 | { |
f0fba2ad LG |
410 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
411 | return 0; | |
bd6d4177 MA |
412 | } |
413 | ||
f0fba2ad LG |
414 | static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { |
415 | .probe = wm8711_probe, | |
416 | .remove = wm8711_remove, | |
417 | .suspend = wm8711_suspend, | |
418 | .resume = wm8711_resume, | |
419 | .set_bias_level = wm8711_set_bias_level, | |
e5eec34c | 420 | .reg_cache_size = ARRAY_SIZE(wm8711_reg), |
f0fba2ad LG |
421 | .reg_word_size = sizeof(u16), |
422 | .reg_cache_default = wm8711_reg, | |
423 | }; | |
424 | ||
08aff8cd MB |
425 | #if defined(CONFIG_SPI_MASTER) |
426 | static int __devinit wm8711_spi_probe(struct spi_device *spi) | |
427 | { | |
08aff8cd | 428 | struct wm8711_priv *wm8711; |
f0fba2ad | 429 | int ret; |
08aff8cd MB |
430 | |
431 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
432 | if (wm8711 == NULL) | |
433 | return -ENOMEM; | |
434 | ||
f0fba2ad | 435 | spi_set_drvdata(spi, wm8711); |
f0fba2ad | 436 | wm8711->bus_type = SND_SOC_SPI; |
08aff8cd | 437 | |
f0fba2ad LG |
438 | ret = snd_soc_register_codec(&spi->dev, |
439 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
440 | if (ret < 0) | |
441 | kfree(wm8711); | |
442 | return ret; | |
08aff8cd MB |
443 | } |
444 | ||
445 | static int __devexit wm8711_spi_remove(struct spi_device *spi) | |
446 | { | |
f0fba2ad LG |
447 | snd_soc_unregister_codec(&spi->dev); |
448 | kfree(spi_get_drvdata(spi)); | |
08aff8cd MB |
449 | return 0; |
450 | } | |
451 | ||
08aff8cd MB |
452 | static struct spi_driver wm8711_spi_driver = { |
453 | .driver = { | |
f0fba2ad | 454 | .name = "wm8711-codec", |
08aff8cd MB |
455 | .owner = THIS_MODULE, |
456 | }, | |
457 | .probe = wm8711_spi_probe, | |
08aff8cd MB |
458 | .remove = __devexit_p(wm8711_spi_remove), |
459 | }; | |
460 | #endif /* CONFIG_SPI_MASTER */ | |
461 | ||
318b0b8d | 462 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 463 | static __devinit int wm8711_i2c_probe(struct i2c_client *client, |
318b0b8d | 464 | const struct i2c_device_id *id) |
bd6d4177 | 465 | { |
bd6d4177 | 466 | struct wm8711_priv *wm8711; |
f0fba2ad | 467 | int ret; |
bd6d4177 MA |
468 | |
469 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
318b0b8d | 470 | if (wm8711 == NULL) |
bd6d4177 | 471 | return -ENOMEM; |
bd6d4177 | 472 | |
f0fba2ad | 473 | i2c_set_clientdata(client, wm8711); |
f0fba2ad | 474 | wm8711->bus_type = SND_SOC_I2C; |
bd6d4177 | 475 | |
f0fba2ad LG |
476 | ret = snd_soc_register_codec(&client->dev, |
477 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
478 | if (ret < 0) | |
479 | kfree(wm8711); | |
480 | return ret; | |
318b0b8d | 481 | } |
bd6d4177 | 482 | |
318b0b8d MB |
483 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
484 | { | |
f0fba2ad LG |
485 | snd_soc_unregister_codec(&client->dev); |
486 | kfree(i2c_get_clientdata(client)); | |
bd6d4177 MA |
487 | return 0; |
488 | } | |
489 | ||
318b0b8d MB |
490 | static const struct i2c_device_id wm8711_i2c_id[] = { |
491 | { "wm8711", 0 }, | |
492 | { } | |
bd6d4177 | 493 | }; |
318b0b8d MB |
494 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
495 | ||
496 | static struct i2c_driver wm8711_i2c_driver = { | |
497 | .driver = { | |
f0fba2ad | 498 | .name = "wm8711-codec", |
318b0b8d MB |
499 | .owner = THIS_MODULE, |
500 | }, | |
501 | .probe = wm8711_i2c_probe, | |
502 | .remove = __devexit_p(wm8711_i2c_remove), | |
503 | .id_table = wm8711_i2c_id, | |
504 | }; | |
505 | #endif | |
bd6d4177 MA |
506 | |
507 | static int __init wm8711_modinit(void) | |
508 | { | |
318b0b8d MB |
509 | int ret; |
510 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
511 | ret = i2c_add_driver(&wm8711_i2c_driver); | |
512 | if (ret != 0) { | |
513 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", | |
514 | ret); | |
515 | } | |
08aff8cd MB |
516 | #endif |
517 | #if defined(CONFIG_SPI_MASTER) | |
bb262767 | 518 | ret = spi_register_driver(&wm8711_spi_driver); |
08aff8cd | 519 | if (ret != 0) { |
bb262767 | 520 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
08aff8cd MB |
521 | ret); |
522 | } | |
318b0b8d MB |
523 | #endif |
524 | return 0; | |
bd6d4177 MA |
525 | } |
526 | module_init(wm8711_modinit); | |
527 | ||
528 | static void __exit wm8711_exit(void) | |
529 | { | |
318b0b8d MB |
530 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
531 | i2c_del_driver(&wm8711_i2c_driver); | |
532 | #endif | |
08aff8cd | 533 | #if defined(CONFIG_SPI_MASTER) |
bb262767 | 534 | spi_unregister_driver(&wm8711_spi_driver); |
08aff8cd | 535 | #endif |
bd6d4177 MA |
536 | } |
537 | module_exit(wm8711_exit); | |
538 | ||
539 | MODULE_DESCRIPTION("ASoC WM8711 driver"); | |
540 | MODULE_AUTHOR("Mike Arthur"); | |
541 | MODULE_LICENSE("GPL"); |