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b886d83c | 1 | // SPDX-License-Identifier: GPL-2.0-only |
2aceefef IM |
2 | /* |
3 | * wm9705.c -- ALSA Soc WM9705 codec support | |
4 | * | |
5 | * Copyright 2008 Ian Molton <spyro@f2s.com> | |
2aceefef IM |
6 | */ |
7 | ||
8 | #include <linux/init.h> | |
5a0e3ad6 | 9 | #include <linux/slab.h> |
aaafcfed | 10 | #include <linux/mfd/wm97xx.h> |
2aceefef IM |
11 | #include <linux/module.h> |
12 | #include <linux/kernel.h> | |
13 | #include <linux/device.h> | |
206964e8 | 14 | #include <linux/regmap.h> |
2aceefef IM |
15 | #include <sound/core.h> |
16 | #include <sound/pcm.h> | |
17 | #include <sound/ac97_codec.h> | |
aaafcfed RJ |
18 | #include <sound/ac97/codec.h> |
19 | #include <sound/ac97/compat.h> | |
2aceefef IM |
20 | #include <sound/initval.h> |
21 | #include <sound/soc.h> | |
2aceefef | 22 | |
6e0b73a0 LPC |
23 | #define WM9705_VENDOR_ID 0x574d4c05 |
24 | #define WM9705_VENDOR_ID_MASK 0xffffffff | |
25 | ||
c6e46e52 RJ |
26 | struct wm9705_priv { |
27 | struct snd_ac97 *ac97; | |
aaafcfed | 28 | struct wm97xx_platform_data *mfd_pdata; |
c6e46e52 RJ |
29 | }; |
30 | ||
206964e8 LPC |
31 | static const struct reg_default wm9705_reg_defaults[] = { |
32 | { 0x02, 0x8000 }, | |
33 | { 0x04, 0x8000 }, | |
34 | { 0x06, 0x8000 }, | |
35 | { 0x0a, 0x8000 }, | |
36 | { 0x0c, 0x8008 }, | |
37 | { 0x0e, 0x8008 }, | |
38 | { 0x10, 0x8808 }, | |
39 | { 0x12, 0x8808 }, | |
40 | { 0x14, 0x8808 }, | |
41 | { 0x16, 0x8808 }, | |
42 | { 0x18, 0x8808 }, | |
43 | { 0x1a, 0x0000 }, | |
44 | { 0x1c, 0x8000 }, | |
45 | { 0x20, 0x0000 }, | |
46 | { 0x22, 0x0000 }, | |
47 | { 0x26, 0x000f }, | |
48 | { 0x28, 0x0605 }, | |
49 | { 0x2a, 0x0000 }, | |
50 | { 0x2c, 0xbb80 }, | |
51 | { 0x32, 0xbb80 }, | |
52 | { 0x34, 0x2000 }, | |
53 | { 0x5a, 0x0000 }, | |
54 | { 0x5c, 0x0000 }, | |
55 | { 0x72, 0x0808 }, | |
56 | { 0x74, 0x0000 }, | |
57 | { 0x76, 0x0006 }, | |
58 | { 0x78, 0x0000 }, | |
59 | { 0x7a, 0x0000 }, | |
60 | }; | |
61 | ||
62 | static const struct regmap_config wm9705_regmap_config = { | |
63 | .reg_bits = 16, | |
64 | .reg_stride = 2, | |
65 | .val_bits = 16, | |
66 | .max_register = 0x7e, | |
67 | .cache_type = REGCACHE_RBTREE, | |
68 | ||
69 | .volatile_reg = regmap_ac97_default_volatile, | |
70 | ||
71 | .reg_defaults = wm9705_reg_defaults, | |
72 | .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), | |
2aceefef IM |
73 | }; |
74 | ||
75 | static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = { | |
76 | SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), | |
77 | SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), | |
78 | SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), | |
79 | SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), | |
80 | SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), | |
81 | SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), | |
82 | SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), | |
83 | SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), | |
84 | SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1), | |
85 | SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1), | |
86 | SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1), | |
87 | SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1), | |
88 | SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1), | |
89 | SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0), | |
927b0aea IM |
90 | SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0), |
91 | SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1), | |
2aceefef IM |
92 | }; |
93 | ||
94 | static const char *wm9705_mic[] = {"Mic 1", "Mic 2"}; | |
95 | static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC", | |
96 | "Line", "Stereo Mix", "Mono Mix", "Phone"}; | |
97 | ||
09981dcb TI |
98 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic, |
99 | AC97_GENERAL_PURPOSE, 8, wm9705_mic); | |
100 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l, | |
101 | AC97_REC_SEL, 8, wm9705_rec_sel); | |
102 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r, | |
103 | AC97_REC_SEL, 0, wm9705_rec_sel); | |
2aceefef IM |
104 | |
105 | /* Headphone Mixer */ | |
106 | static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = { | |
107 | SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1), | |
108 | SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1), | |
109 | SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1), | |
110 | SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1), | |
111 | SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1), | |
112 | }; | |
113 | ||
114 | /* Mic source */ | |
115 | static const struct snd_kcontrol_new wm9705_mic_src_controls = | |
116 | SOC_DAPM_ENUM("Route", wm9705_enum_mic); | |
117 | ||
118 | /* Capture source */ | |
119 | static const struct snd_kcontrol_new wm9705_capture_selectl_controls = | |
120 | SOC_DAPM_ENUM("Route", wm9705_enum_rec_l); | |
121 | static const struct snd_kcontrol_new wm9705_capture_selectr_controls = | |
122 | SOC_DAPM_ENUM("Route", wm9705_enum_rec_r); | |
123 | ||
124 | /* DAPM widgets */ | |
125 | static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = { | |
126 | SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0, | |
127 | &wm9705_mic_src_controls), | |
128 | SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0, | |
129 | &wm9705_capture_selectl_controls), | |
130 | SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0, | |
131 | &wm9705_capture_selectr_controls), | |
132 | SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", | |
133 | SND_SOC_NOPM, 0, 0), | |
134 | SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", | |
135 | SND_SOC_NOPM, 0, 0), | |
136 | SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0, | |
137 | &wm9705_hp_mixer_controls[0], | |
138 | ARRAY_SIZE(wm9705_hp_mixer_controls)), | |
139 | SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), | |
140 | SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0), | |
141 | SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0), | |
142 | SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
143 | SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
144 | SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
145 | SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
146 | SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
147 | SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
148 | SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
149 | SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
150 | SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
151 | SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0), | |
152 | SND_SOC_DAPM_OUTPUT("HPOUTL"), | |
153 | SND_SOC_DAPM_OUTPUT("HPOUTR"), | |
154 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
155 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
156 | SND_SOC_DAPM_OUTPUT("MONOOUT"), | |
157 | SND_SOC_DAPM_INPUT("PHONE"), | |
158 | SND_SOC_DAPM_INPUT("LINEINL"), | |
159 | SND_SOC_DAPM_INPUT("LINEINR"), | |
160 | SND_SOC_DAPM_INPUT("CDINL"), | |
161 | SND_SOC_DAPM_INPUT("CDINR"), | |
162 | SND_SOC_DAPM_INPUT("PCBEEP"), | |
163 | SND_SOC_DAPM_INPUT("MIC1"), | |
164 | SND_SOC_DAPM_INPUT("MIC2"), | |
165 | }; | |
166 | ||
167 | /* Audio map | |
168 | * WM9705 has no switches to disable the route from the inputs to the HP mixer | |
169 | * so in order to prevent active inputs from forcing the audio outputs to be | |
170 | * constantly enabled, we use the mutes on those inputs to simulate such | |
171 | * controls. | |
172 | */ | |
97a58d6e | 173 | static const struct snd_soc_dapm_route wm9705_audio_map[] = { |
2aceefef IM |
174 | /* HP mixer */ |
175 | {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"}, | |
176 | {"HP Mixer", "CD Playback Switch", "CD PGA"}, | |
177 | {"HP Mixer", "Mic Playback Switch", "Mic PGA"}, | |
178 | {"HP Mixer", "Phone Playback Switch", "Phone PGA"}, | |
179 | {"HP Mixer", "Line Playback Switch", "Line PGA"}, | |
180 | {"HP Mixer", NULL, "Left DAC"}, | |
181 | {"HP Mixer", NULL, "Right DAC"}, | |
182 | ||
183 | /* mono mixer */ | |
184 | {"Mono Mixer", NULL, "HP Mixer"}, | |
185 | ||
186 | /* outputs */ | |
187 | {"Headphone PGA", NULL, "HP Mixer"}, | |
188 | {"HPOUTL", NULL, "Headphone PGA"}, | |
189 | {"HPOUTR", NULL, "Headphone PGA"}, | |
190 | {"Line out PGA", NULL, "HP Mixer"}, | |
191 | {"LOUT", NULL, "Line out PGA"}, | |
192 | {"ROUT", NULL, "Line out PGA"}, | |
193 | {"Mono PGA", NULL, "Mono Mixer"}, | |
194 | {"MONOOUT", NULL, "Mono PGA"}, | |
195 | ||
196 | /* inputs */ | |
197 | {"CD PGA", NULL, "CDINL"}, | |
198 | {"CD PGA", NULL, "CDINR"}, | |
199 | {"Line PGA", NULL, "LINEINL"}, | |
200 | {"Line PGA", NULL, "LINEINR"}, | |
201 | {"Phone PGA", NULL, "PHONE"}, | |
202 | {"Mic Source", "Mic 1", "MIC1"}, | |
203 | {"Mic Source", "Mic 2", "MIC2"}, | |
204 | {"Mic PGA", NULL, "Mic Source"}, | |
205 | {"PCBEEP PGA", NULL, "PCBEEP"}, | |
206 | ||
207 | /* Left capture selector */ | |
208 | {"Left Capture Source", "Mic", "Mic Source"}, | |
209 | {"Left Capture Source", "CD", "CDINL"}, | |
210 | {"Left Capture Source", "Line", "LINEINL"}, | |
211 | {"Left Capture Source", "Stereo Mix", "HP Mixer"}, | |
212 | {"Left Capture Source", "Mono Mix", "HP Mixer"}, | |
213 | {"Left Capture Source", "Phone", "PHONE"}, | |
214 | ||
215 | /* Right capture source */ | |
216 | {"Right Capture Source", "Mic", "Mic Source"}, | |
217 | {"Right Capture Source", "CD", "CDINR"}, | |
218 | {"Right Capture Source", "Line", "LINEINR"}, | |
219 | {"Right Capture Source", "Stereo Mix", "HP Mixer"}, | |
220 | {"Right Capture Source", "Mono Mix", "HP Mixer"}, | |
221 | {"Right Capture Source", "Phone", "PHONE"}, | |
222 | ||
223 | {"ADC PGA", NULL, "Left Capture Source"}, | |
224 | {"ADC PGA", NULL, "Right Capture Source"}, | |
225 | ||
226 | /* ADC's */ | |
227 | {"Left ADC", NULL, "ADC PGA"}, | |
228 | {"Right ADC", NULL, "ADC PGA"}, | |
229 | }; | |
230 | ||
2aceefef IM |
231 | static int ac97_prepare(struct snd_pcm_substream *substream, |
232 | struct snd_soc_dai *dai) | |
233 | { | |
28f89849 | 234 | struct snd_soc_component *component = dai->component; |
2aceefef | 235 | int reg; |
2aceefef | 236 | |
28f89849 | 237 | snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x1, 0x1); |
2aceefef IM |
238 | |
239 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
240 | reg = AC97_PCM_FRONT_DAC_RATE; | |
241 | else | |
242 | reg = AC97_PCM_LR_ADC_RATE; | |
243 | ||
28f89849 | 244 | return snd_soc_component_write(component, reg, substream->runtime->rate); |
2aceefef IM |
245 | } |
246 | ||
247 | #define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \ | |
248 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ | |
249 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ | |
250 | SNDRV_PCM_RATE_48000) | |
251 | ||
85e7652d | 252 | static const struct snd_soc_dai_ops wm9705_dai_ops = { |
6335d055 EM |
253 | .prepare = ac97_prepare, |
254 | }; | |
255 | ||
f0fba2ad | 256 | static struct snd_soc_dai_driver wm9705_dai[] = { |
2aceefef | 257 | { |
f0fba2ad | 258 | .name = "wm9705-hifi", |
2aceefef IM |
259 | .playback = { |
260 | .stream_name = "HiFi Playback", | |
261 | .channels_min = 1, | |
262 | .channels_max = 2, | |
263 | .rates = WM9705_AC97_RATES, | |
33f503c9 | 264 | .formats = SND_SOC_STD_AC97_FMTS, |
2aceefef IM |
265 | }, |
266 | .capture = { | |
267 | .stream_name = "HiFi Capture", | |
268 | .channels_min = 1, | |
269 | .channels_max = 2, | |
270 | .rates = WM9705_AC97_RATES, | |
33f503c9 | 271 | .formats = SND_SOC_STD_AC97_FMTS, |
2aceefef | 272 | }, |
6335d055 | 273 | .ops = &wm9705_dai_ops, |
2aceefef IM |
274 | }, |
275 | { | |
f0fba2ad | 276 | .name = "wm9705-aux", |
2aceefef IM |
277 | .playback = { |
278 | .stream_name = "Aux Playback", | |
279 | .channels_min = 1, | |
280 | .channels_max = 1, | |
281 | .rates = WM9705_AC97_RATES, | |
282 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
283 | }, | |
284 | } | |
285 | }; | |
2aceefef | 286 | |
0a11b168 | 287 | #ifdef CONFIG_PM |
28f89849 | 288 | static int wm9705_soc_suspend(struct snd_soc_component *component) |
0a11b168 | 289 | { |
28f89849 KM |
290 | regcache_cache_bypass(component->regmap, true); |
291 | snd_soc_component_write(component, AC97_POWERDOWN, 0xffff); | |
292 | regcache_cache_bypass(component->regmap, false); | |
0a11b168 MB |
293 | |
294 | return 0; | |
295 | } | |
296 | ||
28f89849 | 297 | static int wm9705_soc_resume(struct snd_soc_component *component) |
0a11b168 | 298 | { |
28f89849 | 299 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
206964e8 | 300 | int ret; |
0a11b168 | 301 | |
c6e46e52 | 302 | ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID, |
6e0b73a0 | 303 | WM9705_VENDOR_ID_MASK); |
9cf766f6 | 304 | if (ret < 0) |
0a11b168 | 305 | return ret; |
0a11b168 | 306 | |
28f89849 | 307 | snd_soc_component_cache_sync(component); |
0a11b168 MB |
308 | |
309 | return 0; | |
310 | } | |
311 | #else | |
312 | #define wm9705_soc_suspend NULL | |
313 | #define wm9705_soc_resume NULL | |
314 | #endif | |
315 | ||
28f89849 | 316 | static int wm9705_soc_probe(struct snd_soc_component *component) |
2aceefef | 317 | { |
28f89849 | 318 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
206964e8 | 319 | struct regmap *regmap; |
2aceefef | 320 | |
aaafcfed RJ |
321 | if (wm9705->mfd_pdata) { |
322 | wm9705->ac97 = wm9705->mfd_pdata->ac97; | |
323 | regmap = wm9705->mfd_pdata->regmap; | |
576ce407 | 324 | } else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) { |
28f89849 | 325 | wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID, |
aaafcfed RJ |
326 | WM9705_VENDOR_ID_MASK); |
327 | if (IS_ERR(wm9705->ac97)) { | |
28f89849 | 328 | dev_err(component->dev, "Failed to register AC97 codec\n"); |
aaafcfed RJ |
329 | return PTR_ERR(wm9705->ac97); |
330 | } | |
331 | ||
332 | regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config); | |
333 | if (IS_ERR(regmap)) { | |
28f89849 | 334 | snd_soc_free_ac97_component(wm9705->ac97); |
6bd25aae | 335 | return PTR_ERR(regmap); |
aaafcfed | 336 | } |
576ce407 AB |
337 | } else { |
338 | return -ENXIO; | |
206964e8 LPC |
339 | } |
340 | ||
28f89849 KM |
341 | snd_soc_component_set_drvdata(component, wm9705->ac97); |
342 | snd_soc_component_init_regmap(component, regmap); | |
2aceefef | 343 | |
2aceefef | 344 | return 0; |
2aceefef IM |
345 | } |
346 | ||
28f89849 | 347 | static void wm9705_soc_remove(struct snd_soc_component *component) |
2aceefef | 348 | { |
28f89849 | 349 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component); |
358a8bb5 | 350 | |
576ce407 | 351 | if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) { |
28f89849 KM |
352 | snd_soc_component_exit_regmap(component); |
353 | snd_soc_free_ac97_component(wm9705->ac97); | |
aaafcfed | 354 | } |
2aceefef IM |
355 | } |
356 | ||
28f89849 KM |
357 | static const struct snd_soc_component_driver soc_component_dev_wm9705 = { |
358 | .probe = wm9705_soc_probe, | |
359 | .remove = wm9705_soc_remove, | |
360 | .suspend = wm9705_soc_suspend, | |
361 | .resume = wm9705_soc_resume, | |
362 | .controls = wm9705_snd_ac97_controls, | |
363 | .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls), | |
364 | .dapm_widgets = wm9705_dapm_widgets, | |
365 | .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets), | |
366 | .dapm_routes = wm9705_audio_map, | |
367 | .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map), | |
368 | .idle_bias_on = 1, | |
369 | .use_pmdown_time = 1, | |
370 | .endianness = 1, | |
371 | .non_legacy_dai_naming = 1, | |
f0fba2ad LG |
372 | }; |
373 | ||
7a79e94e | 374 | static int wm9705_probe(struct platform_device *pdev) |
f0fba2ad | 375 | { |
c6e46e52 RJ |
376 | struct wm9705_priv *wm9705; |
377 | ||
378 | wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL); | |
379 | if (wm9705 == NULL) | |
380 | return -ENOMEM; | |
381 | ||
aaafcfed | 382 | wm9705->mfd_pdata = dev_get_platdata(&pdev->dev); |
c6e46e52 RJ |
383 | platform_set_drvdata(pdev, wm9705); |
384 | ||
28f89849 KM |
385 | return devm_snd_soc_register_component(&pdev->dev, |
386 | &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai)); | |
f0fba2ad LG |
387 | } |
388 | ||
389 | static struct platform_driver wm9705_codec_driver = { | |
390 | .driver = { | |
391 | .name = "wm9705-codec", | |
f0fba2ad LG |
392 | }, |
393 | ||
394 | .probe = wm9705_probe, | |
2aceefef | 395 | }; |
f0fba2ad | 396 | |
5bbcc3c0 | 397 | module_platform_driver(wm9705_codec_driver); |
2aceefef IM |
398 | |
399 | MODULE_DESCRIPTION("ASoC WM9705 driver"); | |
400 | MODULE_AUTHOR("Ian Molton"); | |
401 | MODULE_LICENSE("GPL v2"); |