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> | |
28 | #include <sound/soc-dapm.h> | |
b5ab887e | 29 | #include <sound/tlv.h> |
bd6d4177 MA |
30 | #include <sound/initval.h> |
31 | ||
32 | #include "wm8711.h" | |
33 | ||
bd6d4177 MA |
34 | /* codec private data */ |
35 | struct wm8711_priv { | |
f0fba2ad LG |
36 | enum snd_soc_control_type bus_type; |
37 | void *control_data; | |
318b0b8d | 38 | u16 reg_cache[WM8711_CACHEREGNUM]; |
bd6d4177 MA |
39 | unsigned int sysclk; |
40 | }; | |
41 | ||
42 | /* | |
43 | * wm8711 register cache | |
44 | * We can't read the WM8711 register space when we are | |
45 | * using 2 wire for device control, so we cache them instead. | |
46 | * There is no point in caching the reset register | |
47 | */ | |
48 | static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { | |
49 | 0x0079, 0x0079, 0x000a, 0x0008, | |
50 | 0x009f, 0x000a, 0x0000, 0x0000 | |
51 | }; | |
52 | ||
d97d2e35 | 53 | #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) |
bd6d4177 | 54 | |
b5ab887e MB |
55 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
56 | ||
bd6d4177 MA |
57 | static const struct snd_kcontrol_new wm8711_snd_controls[] = { |
58 | ||
b5ab887e MB |
59 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, |
60 | 0, 127, 0, out_tlv), | |
bd6d4177 MA |
61 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, |
62 | 7, 1, 0), | |
63 | ||
64 | }; | |
65 | ||
bd6d4177 MA |
66 | /* Output Mixer */ |
67 | static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { | |
68 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), | |
69 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), | |
70 | }; | |
71 | ||
72 | static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { | |
73 | SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, | |
74 | &wm8711_output_mixer_controls[0], | |
75 | ARRAY_SIZE(wm8711_output_mixer_controls)), | |
76 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), | |
77 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
78 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
79 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
80 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
81 | }; | |
82 | ||
83 | static const struct snd_soc_dapm_route intercon[] = { | |
84 | /* output mixer */ | |
85 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
86 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
87 | ||
88 | /* outputs */ | |
89 | {"RHPOUT", NULL, "Output Mixer"}, | |
90 | {"ROUT", NULL, "Output Mixer"}, | |
91 | {"LHPOUT", NULL, "Output Mixer"}, | |
92 | {"LOUT", NULL, "Output Mixer"}, | |
93 | }; | |
94 | ||
95 | static int wm8711_add_widgets(struct snd_soc_codec *codec) | |
96 | { | |
97 | snd_soc_dapm_new_controls(codec, wm8711_dapm_widgets, | |
98 | ARRAY_SIZE(wm8711_dapm_widgets)); | |
99 | ||
100 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); | |
101 | ||
bd6d4177 MA |
102 | return 0; |
103 | } | |
104 | ||
105 | struct _coeff_div { | |
106 | u32 mclk; | |
107 | u32 rate; | |
108 | u16 fs; | |
109 | u8 sr:4; | |
110 | u8 bosr:1; | |
111 | u8 usb:1; | |
112 | }; | |
113 | ||
114 | /* codec mclk clock divider coefficients */ | |
115 | static const struct _coeff_div coeff_div[] = { | |
116 | /* 48k */ | |
117 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
118 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
119 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
120 | ||
121 | /* 32k */ | |
122 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
123 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
124 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, | |
125 | ||
126 | /* 8k */ | |
127 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
128 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
129 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
130 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
131 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
132 | ||
133 | /* 96k */ | |
134 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
135 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
136 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
137 | ||
138 | /* 44.1k */ | |
139 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
140 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
141 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
142 | ||
143 | /* 88.2k */ | |
144 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
145 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
146 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
147 | }; | |
148 | ||
149 | static inline int get_coeff(int mclk, int rate) | |
150 | { | |
151 | int i; | |
152 | ||
153 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
154 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
155 | return i; | |
156 | } | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static int wm8711_hw_params(struct snd_pcm_substream *substream, | |
161 | struct snd_pcm_hw_params *params, | |
162 | struct snd_soc_dai *dai) | |
163 | { | |
164 | struct snd_soc_codec *codec = dai->codec; | |
f0fba2ad | 165 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
d97d2e35 | 166 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; |
bd6d4177 MA |
167 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
168 | u16 srate = (coeff_div[i].sr << 2) | | |
169 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
170 | ||
d97d2e35 | 171 | snd_soc_write(codec, WM8711_SRATE, srate); |
bd6d4177 MA |
172 | |
173 | /* bit size */ | |
174 | switch (params_format(params)) { | |
175 | case SNDRV_PCM_FORMAT_S16_LE: | |
176 | break; | |
177 | case SNDRV_PCM_FORMAT_S20_3LE: | |
178 | iface |= 0x0004; | |
179 | break; | |
180 | case SNDRV_PCM_FORMAT_S24_LE: | |
181 | iface |= 0x0008; | |
182 | break; | |
183 | } | |
184 | ||
d97d2e35 | 185 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
186 | return 0; |
187 | } | |
188 | ||
189 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, | |
190 | struct snd_soc_dai *dai) | |
191 | { | |
192 | struct snd_soc_codec *codec = dai->codec; | |
193 | ||
194 | /* set active */ | |
d97d2e35 | 195 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
bd6d4177 MA |
196 | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static void wm8711_shutdown(struct snd_pcm_substream *substream, | |
201 | struct snd_soc_dai *dai) | |
202 | { | |
203 | struct snd_soc_codec *codec = dai->codec; | |
204 | ||
205 | /* deactivate */ | |
206 | if (!codec->active) { | |
207 | udelay(50); | |
d97d2e35 | 208 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
209 | } |
210 | } | |
211 | ||
212 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) | |
213 | { | |
214 | struct snd_soc_codec *codec = dai->codec; | |
d97d2e35 | 215 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
bd6d4177 MA |
216 | |
217 | if (mute) | |
d97d2e35 | 218 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
bd6d4177 | 219 | else |
d97d2e35 | 220 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
bd6d4177 MA |
221 | |
222 | return 0; | |
223 | } | |
224 | ||
225 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
226 | int clk_id, unsigned int freq, int dir) | |
227 | { | |
228 | struct snd_soc_codec *codec = codec_dai->codec; | |
f0fba2ad | 229 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
bd6d4177 MA |
230 | |
231 | switch (freq) { | |
232 | case 11289600: | |
233 | case 12000000: | |
234 | case 12288000: | |
235 | case 16934400: | |
236 | case 18432000: | |
237 | wm8711->sysclk = freq; | |
238 | return 0; | |
239 | } | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
243 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
244 | unsigned int fmt) | |
245 | { | |
246 | struct snd_soc_codec *codec = codec_dai->codec; | |
247 | u16 iface = 0; | |
248 | ||
249 | /* set master/slave audio interface */ | |
250 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
251 | case SND_SOC_DAIFMT_CBM_CFM: | |
252 | iface |= 0x0040; | |
253 | break; | |
254 | case SND_SOC_DAIFMT_CBS_CFS: | |
255 | break; | |
256 | default: | |
257 | return -EINVAL; | |
258 | } | |
259 | ||
260 | /* interface format */ | |
261 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
262 | case SND_SOC_DAIFMT_I2S: | |
263 | iface |= 0x0002; | |
264 | break; | |
265 | case SND_SOC_DAIFMT_RIGHT_J: | |
266 | break; | |
267 | case SND_SOC_DAIFMT_LEFT_J: | |
268 | iface |= 0x0001; | |
269 | break; | |
270 | case SND_SOC_DAIFMT_DSP_A: | |
271 | iface |= 0x0003; | |
272 | break; | |
273 | case SND_SOC_DAIFMT_DSP_B: | |
274 | iface |= 0x0013; | |
275 | break; | |
276 | default: | |
277 | return -EINVAL; | |
278 | } | |
279 | ||
280 | /* clock inversion */ | |
281 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
282 | case SND_SOC_DAIFMT_NB_NF: | |
283 | break; | |
284 | case SND_SOC_DAIFMT_IB_IF: | |
285 | iface |= 0x0090; | |
286 | break; | |
287 | case SND_SOC_DAIFMT_IB_NF: | |
288 | iface |= 0x0080; | |
289 | break; | |
290 | case SND_SOC_DAIFMT_NB_IF: | |
291 | iface |= 0x0010; | |
292 | break; | |
293 | default: | |
294 | return -EINVAL; | |
295 | } | |
296 | ||
297 | /* set iface */ | |
d97d2e35 | 298 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
299 | return 0; |
300 | } | |
301 | ||
302 | ||
303 | static int wm8711_set_bias_level(struct snd_soc_codec *codec, | |
304 | enum snd_soc_bias_level level) | |
305 | { | |
d97d2e35 | 306 | u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; |
bd6d4177 MA |
307 | |
308 | switch (level) { | |
309 | case SND_SOC_BIAS_ON: | |
d97d2e35 | 310 | snd_soc_write(codec, WM8711_PWR, reg); |
bd6d4177 MA |
311 | break; |
312 | case SND_SOC_BIAS_PREPARE: | |
313 | break; | |
314 | case SND_SOC_BIAS_STANDBY: | |
d97d2e35 | 315 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
bd6d4177 MA |
316 | break; |
317 | case SND_SOC_BIAS_OFF: | |
d97d2e35 MB |
318 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
319 | snd_soc_write(codec, WM8711_PWR, 0xffff); | |
bd6d4177 MA |
320 | break; |
321 | } | |
322 | codec->bias_level = level; | |
323 | return 0; | |
324 | } | |
325 | ||
431f7771 | 326 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
bd6d4177 MA |
327 | |
328 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
329 | SNDRV_PCM_FMTBIT_S24_LE) | |
330 | ||
331 | static struct snd_soc_dai_ops wm8711_ops = { | |
332 | .prepare = wm8711_pcm_prepare, | |
333 | .hw_params = wm8711_hw_params, | |
334 | .shutdown = wm8711_shutdown, | |
335 | .digital_mute = wm8711_mute, | |
336 | .set_sysclk = wm8711_set_dai_sysclk, | |
337 | .set_fmt = wm8711_set_dai_fmt, | |
338 | }; | |
339 | ||
f0fba2ad LG |
340 | static struct snd_soc_dai_driver wm8711_dai = { |
341 | .name = "wm8711-hifi", | |
bd6d4177 MA |
342 | .playback = { |
343 | .stream_name = "Playback", | |
344 | .channels_min = 1, | |
345 | .channels_max = 2, | |
346 | .rates = WM8711_RATES, | |
431f7771 MB |
347 | .formats = WM8711_FORMATS, |
348 | }, | |
bd6d4177 MA |
349 | .ops = &wm8711_ops, |
350 | }; | |
bd6d4177 | 351 | |
f0fba2ad | 352 | static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) |
bd6d4177 | 353 | { |
d97d2e35 | 354 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
355 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
356 | return 0; | |
357 | } | |
358 | ||
f0fba2ad | 359 | static int wm8711_resume(struct snd_soc_codec *codec) |
bd6d4177 | 360 | { |
bd6d4177 MA |
361 | int i; |
362 | u8 data[2]; | |
363 | u16 *cache = codec->reg_cache; | |
364 | ||
365 | /* Sync reg_cache with the hardware */ | |
366 | for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) { | |
367 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
368 | data[1] = cache[i] & 0x00ff; | |
369 | codec->hw_write(codec->control_data, data, 2); | |
370 | } | |
371 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
29e189c2 | 372 | |
bd6d4177 MA |
373 | return 0; |
374 | } | |
375 | ||
f0fba2ad | 376 | static int wm8711_probe(struct snd_soc_codec *codec) |
bd6d4177 | 377 | { |
f0fba2ad LG |
378 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
379 | int ret, reg; | |
bd6d4177 | 380 | |
f0fba2ad LG |
381 | codec->control_data = wm8711->control_data; |
382 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); | |
d97d2e35 MB |
383 | if (ret < 0) { |
384 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 385 | return ret; |
d97d2e35 MB |
386 | } |
387 | ||
318b0b8d | 388 | ret = wm8711_reset(codec); |
bd6d4177 | 389 | if (ret < 0) { |
318b0b8d | 390 | dev_err(codec->dev, "Failed to issue reset\n"); |
f0fba2ad | 391 | return ret; |
bd6d4177 | 392 | } |
bd6d4177 | 393 | |
318b0b8d MB |
394 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
395 | ||
396 | /* Latch the update bits */ | |
d97d2e35 MB |
397 | reg = snd_soc_read(codec, WM8711_LOUT1V); |
398 | snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); | |
399 | reg = snd_soc_read(codec, WM8711_ROUT1V); | |
400 | snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); | |
318b0b8d | 401 | |
f0fba2ad LG |
402 | snd_soc_add_controls(codec, wm8711_snd_controls, |
403 | ARRAY_SIZE(wm8711_snd_controls)); | |
404 | wm8711_add_widgets(codec); | |
d97d2e35 | 405 | |
d97d2e35 | 406 | return ret; |
f0fba2ad | 407 | |
bd6d4177 MA |
408 | } |
409 | ||
f0fba2ad LG |
410 | /* power down chip */ |
411 | static int wm8711_remove(struct snd_soc_codec *codec) | |
bd6d4177 | 412 | { |
f0fba2ad LG |
413 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
414 | return 0; | |
bd6d4177 MA |
415 | } |
416 | ||
f0fba2ad LG |
417 | static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { |
418 | .probe = wm8711_probe, | |
419 | .remove = wm8711_remove, | |
420 | .suspend = wm8711_suspend, | |
421 | .resume = wm8711_resume, | |
422 | .set_bias_level = wm8711_set_bias_level, | |
423 | .reg_cache_size = sizeof(wm8711_reg), | |
424 | .reg_word_size = sizeof(u16), | |
425 | .reg_cache_default = wm8711_reg, | |
426 | }; | |
427 | ||
08aff8cd MB |
428 | #if defined(CONFIG_SPI_MASTER) |
429 | static int __devinit wm8711_spi_probe(struct spi_device *spi) | |
430 | { | |
08aff8cd | 431 | struct wm8711_priv *wm8711; |
f0fba2ad | 432 | int ret; |
08aff8cd MB |
433 | |
434 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
435 | if (wm8711 == NULL) | |
436 | return -ENOMEM; | |
437 | ||
f0fba2ad LG |
438 | spi_set_drvdata(spi, wm8711); |
439 | wm8711->control_data = spi; | |
440 | wm8711->bus_type = SND_SOC_SPI; | |
08aff8cd | 441 | |
f0fba2ad LG |
442 | ret = snd_soc_register_codec(&spi->dev, |
443 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
444 | if (ret < 0) | |
445 | kfree(wm8711); | |
446 | return ret; | |
08aff8cd MB |
447 | } |
448 | ||
449 | static int __devexit wm8711_spi_remove(struct spi_device *spi) | |
450 | { | |
f0fba2ad LG |
451 | snd_soc_unregister_codec(&spi->dev); |
452 | kfree(spi_get_drvdata(spi)); | |
08aff8cd MB |
453 | return 0; |
454 | } | |
455 | ||
08aff8cd MB |
456 | static struct spi_driver wm8711_spi_driver = { |
457 | .driver = { | |
f0fba2ad | 458 | .name = "wm8711-codec", |
08aff8cd MB |
459 | .bus = &spi_bus_type, |
460 | .owner = THIS_MODULE, | |
461 | }, | |
462 | .probe = wm8711_spi_probe, | |
08aff8cd MB |
463 | .remove = __devexit_p(wm8711_spi_remove), |
464 | }; | |
465 | #endif /* CONFIG_SPI_MASTER */ | |
466 | ||
318b0b8d | 467 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 468 | static __devinit int wm8711_i2c_probe(struct i2c_client *client, |
318b0b8d | 469 | const struct i2c_device_id *id) |
bd6d4177 | 470 | { |
bd6d4177 | 471 | struct wm8711_priv *wm8711; |
f0fba2ad | 472 | int ret; |
bd6d4177 MA |
473 | |
474 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
318b0b8d | 475 | if (wm8711 == NULL) |
bd6d4177 | 476 | return -ENOMEM; |
bd6d4177 | 477 | |
f0fba2ad LG |
478 | i2c_set_clientdata(client, wm8711); |
479 | wm8711->control_data = client; | |
480 | wm8711->bus_type = SND_SOC_I2C; | |
bd6d4177 | 481 | |
f0fba2ad LG |
482 | ret = snd_soc_register_codec(&client->dev, |
483 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
484 | if (ret < 0) | |
485 | kfree(wm8711); | |
486 | return ret; | |
318b0b8d | 487 | } |
bd6d4177 | 488 | |
318b0b8d MB |
489 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
490 | { | |
f0fba2ad LG |
491 | snd_soc_unregister_codec(&client->dev); |
492 | kfree(i2c_get_clientdata(client)); | |
bd6d4177 MA |
493 | return 0; |
494 | } | |
495 | ||
318b0b8d MB |
496 | static const struct i2c_device_id wm8711_i2c_id[] = { |
497 | { "wm8711", 0 }, | |
498 | { } | |
bd6d4177 | 499 | }; |
318b0b8d MB |
500 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
501 | ||
502 | static struct i2c_driver wm8711_i2c_driver = { | |
503 | .driver = { | |
f0fba2ad | 504 | .name = "wm8711-codec", |
318b0b8d MB |
505 | .owner = THIS_MODULE, |
506 | }, | |
507 | .probe = wm8711_i2c_probe, | |
508 | .remove = __devexit_p(wm8711_i2c_remove), | |
509 | .id_table = wm8711_i2c_id, | |
510 | }; | |
511 | #endif | |
bd6d4177 MA |
512 | |
513 | static int __init wm8711_modinit(void) | |
514 | { | |
318b0b8d MB |
515 | int ret; |
516 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
517 | ret = i2c_add_driver(&wm8711_i2c_driver); | |
518 | if (ret != 0) { | |
519 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", | |
520 | ret); | |
521 | } | |
08aff8cd MB |
522 | #endif |
523 | #if defined(CONFIG_SPI_MASTER) | |
bb262767 | 524 | ret = spi_register_driver(&wm8711_spi_driver); |
08aff8cd | 525 | if (ret != 0) { |
bb262767 | 526 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
08aff8cd MB |
527 | ret); |
528 | } | |
318b0b8d MB |
529 | #endif |
530 | return 0; | |
bd6d4177 MA |
531 | } |
532 | module_init(wm8711_modinit); | |
533 | ||
534 | static void __exit wm8711_exit(void) | |
535 | { | |
318b0b8d MB |
536 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
537 | i2c_del_driver(&wm8711_i2c_driver); | |
538 | #endif | |
08aff8cd | 539 | #if defined(CONFIG_SPI_MASTER) |
bb262767 | 540 | spi_unregister_driver(&wm8711_spi_driver); |
08aff8cd | 541 | #endif |
bd6d4177 MA |
542 | } |
543 | module_exit(wm8711_exit); | |
544 | ||
545 | MODULE_DESCRIPTION("ASoC WM8711 driver"); | |
546 | MODULE_AUTHOR("Mike Arthur"); | |
547 | MODULE_LICENSE("GPL"); |