Commit | Line | Data |
---|---|---|
bd6d4177 MA |
1 | /* |
2 | * wm8711.c -- WM8711 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2006 Wolfson Microelectronics | |
5 | * | |
9a185b9a | 6 | * Author: Mike Arthur <Mike.Arthur@wolfsonmicro.com> |
bd6d4177 MA |
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> |
1552c8f6 | 24 | #include <linux/of_device.h> |
bd6d4177 MA |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.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 | 36 | enum snd_soc_control_type bus_type; |
bd6d4177 MA |
37 | unsigned int sysclk; |
38 | }; | |
39 | ||
40 | /* | |
41 | * wm8711 register cache | |
42 | * We can't read the WM8711 register space when we are | |
43 | * using 2 wire for device control, so we cache them instead. | |
44 | * There is no point in caching the reset register | |
45 | */ | |
46 | static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { | |
47 | 0x0079, 0x0079, 0x000a, 0x0008, | |
48 | 0x009f, 0x000a, 0x0000, 0x0000 | |
49 | }; | |
50 | ||
d97d2e35 | 51 | #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) |
bd6d4177 | 52 | |
b5ab887e MB |
53 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); |
54 | ||
bd6d4177 MA |
55 | static const struct snd_kcontrol_new wm8711_snd_controls[] = { |
56 | ||
b5ab887e MB |
57 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V, |
58 | 0, 127, 0, out_tlv), | |
bd6d4177 MA |
59 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V, |
60 | 7, 1, 0), | |
61 | ||
62 | }; | |
63 | ||
bd6d4177 MA |
64 | /* Output Mixer */ |
65 | static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = { | |
66 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0), | |
67 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8711_APANA, 4, 1, 0), | |
68 | }; | |
69 | ||
70 | static const struct snd_soc_dapm_widget wm8711_dapm_widgets[] = { | |
71 | SND_SOC_DAPM_MIXER("Output Mixer", WM8711_PWR, 4, 1, | |
72 | &wm8711_output_mixer_controls[0], | |
73 | ARRAY_SIZE(wm8711_output_mixer_controls)), | |
74 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8711_PWR, 3, 1), | |
75 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
76 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
77 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
78 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
79 | }; | |
80 | ||
20314000 | 81 | static const struct snd_soc_dapm_route wm8711_intercon[] = { |
bd6d4177 MA |
82 | /* output mixer */ |
83 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
84 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
85 | ||
86 | /* outputs */ | |
87 | {"RHPOUT", NULL, "Output Mixer"}, | |
88 | {"ROUT", NULL, "Output Mixer"}, | |
89 | {"LHPOUT", NULL, "Output Mixer"}, | |
90 | {"LOUT", NULL, "Output Mixer"}, | |
91 | }; | |
92 | ||
bd6d4177 MA |
93 | struct _coeff_div { |
94 | u32 mclk; | |
95 | u32 rate; | |
96 | u16 fs; | |
97 | u8 sr:4; | |
98 | u8 bosr:1; | |
99 | u8 usb:1; | |
100 | }; | |
101 | ||
102 | /* codec mclk clock divider coefficients */ | |
103 | static const struct _coeff_div coeff_div[] = { | |
104 | /* 48k */ | |
105 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
106 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
107 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
108 | ||
109 | /* 32k */ | |
110 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
111 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
112 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, | |
113 | ||
114 | /* 8k */ | |
115 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
116 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
117 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
118 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
119 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
120 | ||
121 | /* 96k */ | |
122 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
123 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
124 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
125 | ||
126 | /* 44.1k */ | |
127 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
128 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
129 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
130 | ||
131 | /* 88.2k */ | |
132 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
133 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
134 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
135 | }; | |
136 | ||
137 | static inline int get_coeff(int mclk, int rate) | |
138 | { | |
139 | int i; | |
140 | ||
141 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
142 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
143 | return i; | |
144 | } | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int wm8711_hw_params(struct snd_pcm_substream *substream, | |
149 | struct snd_pcm_hw_params *params, | |
150 | struct snd_soc_dai *dai) | |
151 | { | |
152 | struct snd_soc_codec *codec = dai->codec; | |
f0fba2ad | 153 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
04c57163 | 154 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfff3; |
bd6d4177 MA |
155 | int i = get_coeff(wm8711->sysclk, params_rate(params)); |
156 | u16 srate = (coeff_div[i].sr << 2) | | |
157 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
158 | ||
d97d2e35 | 159 | snd_soc_write(codec, WM8711_SRATE, srate); |
bd6d4177 MA |
160 | |
161 | /* bit size */ | |
162 | switch (params_format(params)) { | |
163 | case SNDRV_PCM_FORMAT_S16_LE: | |
164 | break; | |
165 | case SNDRV_PCM_FORMAT_S20_3LE: | |
166 | iface |= 0x0004; | |
167 | break; | |
168 | case SNDRV_PCM_FORMAT_S24_LE: | |
169 | iface |= 0x0008; | |
170 | break; | |
171 | } | |
172 | ||
d97d2e35 | 173 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
174 | return 0; |
175 | } | |
176 | ||
177 | static int wm8711_pcm_prepare(struct snd_pcm_substream *substream, | |
178 | struct snd_soc_dai *dai) | |
179 | { | |
180 | struct snd_soc_codec *codec = dai->codec; | |
181 | ||
182 | /* set active */ | |
d97d2e35 | 183 | snd_soc_write(codec, WM8711_ACTIVE, 0x0001); |
bd6d4177 MA |
184 | |
185 | return 0; | |
186 | } | |
187 | ||
188 | static void wm8711_shutdown(struct snd_pcm_substream *substream, | |
189 | struct snd_soc_dai *dai) | |
190 | { | |
191 | struct snd_soc_codec *codec = dai->codec; | |
192 | ||
193 | /* deactivate */ | |
194 | if (!codec->active) { | |
195 | udelay(50); | |
d97d2e35 | 196 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
197 | } |
198 | } | |
199 | ||
200 | static int wm8711_mute(struct snd_soc_dai *dai, int mute) | |
201 | { | |
202 | struct snd_soc_codec *codec = dai->codec; | |
d97d2e35 | 203 | u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7; |
bd6d4177 MA |
204 | |
205 | if (mute) | |
d97d2e35 | 206 | snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8); |
bd6d4177 | 207 | else |
d97d2e35 | 208 | snd_soc_write(codec, WM8711_APDIGI, mute_reg); |
bd6d4177 MA |
209 | |
210 | return 0; | |
211 | } | |
212 | ||
213 | static int wm8711_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
214 | int clk_id, unsigned int freq, int dir) | |
215 | { | |
216 | struct snd_soc_codec *codec = codec_dai->codec; | |
f0fba2ad | 217 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
bd6d4177 MA |
218 | |
219 | switch (freq) { | |
220 | case 11289600: | |
221 | case 12000000: | |
222 | case 12288000: | |
223 | case 16934400: | |
224 | case 18432000: | |
225 | wm8711->sysclk = freq; | |
226 | return 0; | |
227 | } | |
228 | return -EINVAL; | |
229 | } | |
230 | ||
231 | static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
232 | unsigned int fmt) | |
233 | { | |
234 | struct snd_soc_codec *codec = codec_dai->codec; | |
d558cfc3 | 235 | u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0x000c; |
bd6d4177 MA |
236 | |
237 | /* set master/slave audio interface */ | |
238 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
239 | case SND_SOC_DAIFMT_CBM_CFM: | |
240 | iface |= 0x0040; | |
241 | break; | |
242 | case SND_SOC_DAIFMT_CBS_CFS: | |
243 | break; | |
244 | default: | |
245 | return -EINVAL; | |
246 | } | |
247 | ||
248 | /* interface format */ | |
249 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
250 | case SND_SOC_DAIFMT_I2S: | |
251 | iface |= 0x0002; | |
252 | break; | |
253 | case SND_SOC_DAIFMT_RIGHT_J: | |
254 | break; | |
255 | case SND_SOC_DAIFMT_LEFT_J: | |
256 | iface |= 0x0001; | |
257 | break; | |
258 | case SND_SOC_DAIFMT_DSP_A: | |
259 | iface |= 0x0003; | |
260 | break; | |
261 | case SND_SOC_DAIFMT_DSP_B: | |
262 | iface |= 0x0013; | |
263 | break; | |
264 | default: | |
265 | return -EINVAL; | |
266 | } | |
267 | ||
268 | /* clock inversion */ | |
269 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
270 | case SND_SOC_DAIFMT_NB_NF: | |
271 | break; | |
272 | case SND_SOC_DAIFMT_IB_IF: | |
273 | iface |= 0x0090; | |
274 | break; | |
275 | case SND_SOC_DAIFMT_IB_NF: | |
276 | iface |= 0x0080; | |
277 | break; | |
278 | case SND_SOC_DAIFMT_NB_IF: | |
279 | iface |= 0x0010; | |
280 | break; | |
281 | default: | |
282 | return -EINVAL; | |
283 | } | |
284 | ||
285 | /* set iface */ | |
d97d2e35 | 286 | snd_soc_write(codec, WM8711_IFACE, iface); |
bd6d4177 MA |
287 | return 0; |
288 | } | |
289 | ||
bd6d4177 MA |
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: | |
960622da AL |
302 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) |
303 | snd_soc_cache_sync(codec); | |
304 | ||
d97d2e35 | 305 | snd_soc_write(codec, WM8711_PWR, reg | 0x0040); |
bd6d4177 MA |
306 | break; |
307 | case SND_SOC_BIAS_OFF: | |
d97d2e35 MB |
308 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
309 | snd_soc_write(codec, WM8711_PWR, 0xffff); | |
bd6d4177 MA |
310 | break; |
311 | } | |
ce6120cc | 312 | codec->dapm.bias_level = level; |
bd6d4177 MA |
313 | return 0; |
314 | } | |
315 | ||
431f7771 | 316 | #define WM8711_RATES SNDRV_PCM_RATE_8000_96000 |
bd6d4177 MA |
317 | |
318 | #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
319 | SNDRV_PCM_FMTBIT_S24_LE) | |
320 | ||
85e7652d | 321 | static const struct snd_soc_dai_ops wm8711_ops = { |
bd6d4177 MA |
322 | .prepare = wm8711_pcm_prepare, |
323 | .hw_params = wm8711_hw_params, | |
324 | .shutdown = wm8711_shutdown, | |
325 | .digital_mute = wm8711_mute, | |
326 | .set_sysclk = wm8711_set_dai_sysclk, | |
327 | .set_fmt = wm8711_set_dai_fmt, | |
328 | }; | |
329 | ||
f0fba2ad LG |
330 | static struct snd_soc_dai_driver wm8711_dai = { |
331 | .name = "wm8711-hifi", | |
bd6d4177 MA |
332 | .playback = { |
333 | .stream_name = "Playback", | |
334 | .channels_min = 1, | |
335 | .channels_max = 2, | |
336 | .rates = WM8711_RATES, | |
431f7771 MB |
337 | .formats = WM8711_FORMATS, |
338 | }, | |
bd6d4177 MA |
339 | .ops = &wm8711_ops, |
340 | }; | |
bd6d4177 | 341 | |
f0fba2ad | 342 | static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) |
bd6d4177 | 343 | { |
d97d2e35 | 344 | snd_soc_write(codec, WM8711_ACTIVE, 0x0); |
bd6d4177 MA |
345 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
346 | return 0; | |
347 | } | |
348 | ||
f0fba2ad | 349 | static int wm8711_resume(struct snd_soc_codec *codec) |
bd6d4177 | 350 | { |
bd6d4177 | 351 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
bd6d4177 MA |
352 | return 0; |
353 | } | |
354 | ||
f0fba2ad | 355 | static int wm8711_probe(struct snd_soc_codec *codec) |
bd6d4177 | 356 | { |
f0fba2ad | 357 | struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); |
d434bc32 | 358 | int ret; |
bd6d4177 | 359 | |
f0fba2ad | 360 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); |
d97d2e35 MB |
361 | if (ret < 0) { |
362 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 363 | return ret; |
d97d2e35 MB |
364 | } |
365 | ||
318b0b8d | 366 | ret = wm8711_reset(codec); |
bd6d4177 | 367 | if (ret < 0) { |
318b0b8d | 368 | dev_err(codec->dev, "Failed to issue reset\n"); |
f0fba2ad | 369 | return ret; |
bd6d4177 | 370 | } |
bd6d4177 | 371 | |
318b0b8d MB |
372 | wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
373 | ||
374 | /* Latch the update bits */ | |
11b9ce62 AL |
375 | snd_soc_update_bits(codec, WM8711_LOUT1V, 0x0100, 0x0100); |
376 | snd_soc_update_bits(codec, WM8711_ROUT1V, 0x0100, 0x0100); | |
318b0b8d | 377 | |
f0fba2ad LG |
378 | snd_soc_add_controls(codec, wm8711_snd_controls, |
379 | ARRAY_SIZE(wm8711_snd_controls)); | |
d97d2e35 | 380 | |
d97d2e35 | 381 | return ret; |
f0fba2ad | 382 | |
bd6d4177 MA |
383 | } |
384 | ||
f0fba2ad LG |
385 | /* power down chip */ |
386 | static int wm8711_remove(struct snd_soc_codec *codec) | |
bd6d4177 | 387 | { |
f0fba2ad LG |
388 | wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); |
389 | return 0; | |
bd6d4177 MA |
390 | } |
391 | ||
f0fba2ad LG |
392 | static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { |
393 | .probe = wm8711_probe, | |
394 | .remove = wm8711_remove, | |
395 | .suspend = wm8711_suspend, | |
396 | .resume = wm8711_resume, | |
397 | .set_bias_level = wm8711_set_bias_level, | |
e5eec34c | 398 | .reg_cache_size = ARRAY_SIZE(wm8711_reg), |
f0fba2ad LG |
399 | .reg_word_size = sizeof(u16), |
400 | .reg_cache_default = wm8711_reg, | |
20314000 LG |
401 | .dapm_widgets = wm8711_dapm_widgets, |
402 | .num_dapm_widgets = ARRAY_SIZE(wm8711_dapm_widgets), | |
403 | .dapm_routes = wm8711_intercon, | |
404 | .num_dapm_routes = ARRAY_SIZE(wm8711_intercon), | |
f0fba2ad LG |
405 | }; |
406 | ||
1552c8f6 MB |
407 | static const struct of_device_id wm8711_of_match[] = { |
408 | { .compatible = "wlf,wm8711", }, | |
409 | { } | |
410 | }; | |
411 | MODULE_DEVICE_TABLE(of, wm8711_of_match); | |
412 | ||
08aff8cd MB |
413 | #if defined(CONFIG_SPI_MASTER) |
414 | static int __devinit wm8711_spi_probe(struct spi_device *spi) | |
415 | { | |
08aff8cd | 416 | struct wm8711_priv *wm8711; |
f0fba2ad | 417 | int ret; |
08aff8cd MB |
418 | |
419 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
420 | if (wm8711 == NULL) | |
421 | return -ENOMEM; | |
422 | ||
f0fba2ad | 423 | spi_set_drvdata(spi, wm8711); |
f0fba2ad | 424 | wm8711->bus_type = SND_SOC_SPI; |
08aff8cd | 425 | |
f0fba2ad LG |
426 | ret = snd_soc_register_codec(&spi->dev, |
427 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
428 | if (ret < 0) | |
429 | kfree(wm8711); | |
430 | return ret; | |
08aff8cd MB |
431 | } |
432 | ||
433 | static int __devexit wm8711_spi_remove(struct spi_device *spi) | |
434 | { | |
f0fba2ad LG |
435 | snd_soc_unregister_codec(&spi->dev); |
436 | kfree(spi_get_drvdata(spi)); | |
08aff8cd MB |
437 | return 0; |
438 | } | |
439 | ||
08aff8cd MB |
440 | static struct spi_driver wm8711_spi_driver = { |
441 | .driver = { | |
0473e61b | 442 | .name = "wm8711", |
08aff8cd | 443 | .owner = THIS_MODULE, |
1552c8f6 | 444 | .of_match_table = wm8711_of_match, |
08aff8cd MB |
445 | }, |
446 | .probe = wm8711_spi_probe, | |
08aff8cd MB |
447 | .remove = __devexit_p(wm8711_spi_remove), |
448 | }; | |
449 | #endif /* CONFIG_SPI_MASTER */ | |
450 | ||
318b0b8d | 451 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 452 | static __devinit int wm8711_i2c_probe(struct i2c_client *client, |
318b0b8d | 453 | const struct i2c_device_id *id) |
bd6d4177 | 454 | { |
bd6d4177 | 455 | struct wm8711_priv *wm8711; |
f0fba2ad | 456 | int ret; |
bd6d4177 MA |
457 | |
458 | wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); | |
318b0b8d | 459 | if (wm8711 == NULL) |
bd6d4177 | 460 | return -ENOMEM; |
bd6d4177 | 461 | |
f0fba2ad | 462 | i2c_set_clientdata(client, wm8711); |
f0fba2ad | 463 | wm8711->bus_type = SND_SOC_I2C; |
bd6d4177 | 464 | |
f0fba2ad LG |
465 | ret = snd_soc_register_codec(&client->dev, |
466 | &soc_codec_dev_wm8711, &wm8711_dai, 1); | |
467 | if (ret < 0) | |
468 | kfree(wm8711); | |
469 | return ret; | |
318b0b8d | 470 | } |
bd6d4177 | 471 | |
318b0b8d MB |
472 | static __devexit int wm8711_i2c_remove(struct i2c_client *client) |
473 | { | |
f0fba2ad LG |
474 | snd_soc_unregister_codec(&client->dev); |
475 | kfree(i2c_get_clientdata(client)); | |
bd6d4177 MA |
476 | return 0; |
477 | } | |
478 | ||
318b0b8d MB |
479 | static const struct i2c_device_id wm8711_i2c_id[] = { |
480 | { "wm8711", 0 }, | |
481 | { } | |
bd6d4177 | 482 | }; |
318b0b8d MB |
483 | MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); |
484 | ||
485 | static struct i2c_driver wm8711_i2c_driver = { | |
486 | .driver = { | |
0473e61b | 487 | .name = "wm8711", |
318b0b8d | 488 | .owner = THIS_MODULE, |
1552c8f6 | 489 | .of_match_table = wm8711_of_match, |
318b0b8d MB |
490 | }, |
491 | .probe = wm8711_i2c_probe, | |
492 | .remove = __devexit_p(wm8711_i2c_remove), | |
493 | .id_table = wm8711_i2c_id, | |
494 | }; | |
495 | #endif | |
bd6d4177 MA |
496 | |
497 | static int __init wm8711_modinit(void) | |
498 | { | |
318b0b8d MB |
499 | int ret; |
500 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
501 | ret = i2c_add_driver(&wm8711_i2c_driver); | |
502 | if (ret != 0) { | |
503 | printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", | |
504 | ret); | |
505 | } | |
08aff8cd MB |
506 | #endif |
507 | #if defined(CONFIG_SPI_MASTER) | |
bb262767 | 508 | ret = spi_register_driver(&wm8711_spi_driver); |
08aff8cd | 509 | if (ret != 0) { |
bb262767 | 510 | printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n", |
08aff8cd MB |
511 | ret); |
512 | } | |
318b0b8d MB |
513 | #endif |
514 | return 0; | |
bd6d4177 MA |
515 | } |
516 | module_init(wm8711_modinit); | |
517 | ||
518 | static void __exit wm8711_exit(void) | |
519 | { | |
318b0b8d MB |
520 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
521 | i2c_del_driver(&wm8711_i2c_driver); | |
522 | #endif | |
08aff8cd | 523 | #if defined(CONFIG_SPI_MASTER) |
bb262767 | 524 | spi_unregister_driver(&wm8711_spi_driver); |
08aff8cd | 525 | #endif |
bd6d4177 MA |
526 | } |
527 | module_exit(wm8711_exit); | |
528 | ||
529 | MODULE_DESCRIPTION("ASoC WM8711 driver"); | |
530 | MODULE_AUTHOR("Mike Arthur"); | |
531 | MODULE_LICENSE("GPL"); |