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796d2ca8 RP |
1 | /* |
2 | * ak4535.c -- AK4535 ALSA Soc Audio driver | |
3 | * | |
4 | * Copyright 2005 Openedhand Ltd. | |
5 | * | |
6 | * Author: Richard Purdie <richard@openedhand.com> | |
7 | * | |
8 | * Based on wm8753.c by Liam Girdwood | |
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> | |
a1fa9213 | 21 | #include <linux/regmap.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
796d2ca8 RP |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
796d2ca8 RP |
27 | #include <sound/initval.h> |
28 | ||
29 | #include "ak4535.h" | |
30 | ||
796d2ca8 RP |
31 | /* codec private data */ |
32 | struct ak4535_priv { | |
a1fa9213 | 33 | struct regmap *regmap; |
796d2ca8 RP |
34 | unsigned int sysclk; |
35 | }; | |
36 | ||
37 | /* | |
38 | * ak4535 register cache | |
39 | */ | |
a1fa9213 MB |
40 | static const struct reg_default ak4535_reg_defaults[] = { |
41 | { 0, 0x00 }, | |
42 | { 1, 0x80 }, | |
43 | { 2, 0x00 }, | |
44 | { 3, 0x03 }, | |
45 | { 4, 0x02 }, | |
46 | { 5, 0x00 }, | |
47 | { 6, 0x11 }, | |
48 | { 7, 0x01 }, | |
49 | { 8, 0x00 }, | |
50 | { 9, 0x40 }, | |
51 | { 10, 0x36 }, | |
52 | { 11, 0x10 }, | |
53 | { 12, 0x00 }, | |
54 | { 13, 0x00 }, | |
55 | { 14, 0x57 }, | |
796d2ca8 RP |
56 | }; |
57 | ||
a1fa9213 MB |
58 | static bool ak4535_volatile(struct device *dev, unsigned int reg) |
59 | { | |
60 | switch (reg) { | |
61 | case AK4535_STATUS: | |
62 | return true; | |
63 | default: | |
64 | return false; | |
65 | } | |
66 | } | |
67 | ||
796d2ca8 RP |
68 | static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"}; |
69 | static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"}; | |
70 | static const char *ak4535_hp_out[] = {"Stereo", "Mono"}; | |
71 | static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"}; | |
72 | static const char *ak4535_mic_select[] = {"Internal", "External"}; | |
73 | ||
74 | static const struct soc_enum ak4535_enum[] = { | |
75 | SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain), | |
76 | SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out), | |
77 | SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out), | |
78 | SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp), | |
79 | SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select), | |
80 | }; | |
81 | ||
82 | static const struct snd_kcontrol_new ak4535_snd_controls[] = { | |
83 | SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0), | |
84 | SOC_ENUM("Mono 1 Output", ak4535_enum[1]), | |
85 | SOC_ENUM("Mono 1 Gain", ak4535_enum[0]), | |
86 | SOC_ENUM("Headphone Output", ak4535_enum[2]), | |
87 | SOC_ENUM("Playback Deemphasis", ak4535_enum[3]), | |
88 | SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0), | |
89 | SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0), | |
90 | SOC_ENUM("Mic Select", ak4535_enum[4]), | |
91 | SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0), | |
92 | SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0), | |
93 | SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0), | |
94 | SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0), | |
95 | SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0), | |
96 | SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0), | |
97 | SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0), | |
98 | SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1), | |
99 | SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1), | |
100 | SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0), | |
101 | SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0), | |
102 | }; | |
103 | ||
796d2ca8 RP |
104 | /* Mono 1 Mixer */ |
105 | static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = { | |
106 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0), | |
107 | SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0), | |
108 | }; | |
109 | ||
110 | /* Stereo Mixer */ | |
111 | static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = { | |
112 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0), | |
113 | SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0), | |
114 | SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0), | |
115 | }; | |
116 | ||
117 | /* Input Mixer */ | |
118 | static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = { | |
119 | SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0), | |
120 | SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0), | |
121 | }; | |
122 | ||
123 | /* Input mux */ | |
124 | static const struct snd_kcontrol_new ak4535_input_mux_control = | |
125 | SOC_DAPM_ENUM("Input Select", ak4535_enum[4]); | |
126 | ||
127 | /* HP L switch */ | |
128 | static const struct snd_kcontrol_new ak4535_hpl_control = | |
129 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1); | |
130 | ||
131 | /* HP R switch */ | |
132 | static const struct snd_kcontrol_new ak4535_hpr_control = | |
133 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1); | |
134 | ||
135 | /* mono 2 switch */ | |
136 | static const struct snd_kcontrol_new ak4535_mono2_control = | |
137 | SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0); | |
138 | ||
139 | /* Line out switch */ | |
140 | static const struct snd_kcontrol_new ak4535_line_control = | |
141 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0); | |
142 | ||
143 | /* ak4535 dapm widgets */ | |
144 | static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = { | |
145 | SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, | |
146 | &ak4535_stereo_mixer_controls[0], | |
147 | ARRAY_SIZE(ak4535_stereo_mixer_controls)), | |
148 | SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, | |
149 | &ak4535_mono1_mixer_controls[0], | |
150 | ARRAY_SIZE(ak4535_mono1_mixer_controls)), | |
151 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, | |
152 | &ak4535_input_mixer_controls[0], | |
153 | ARRAY_SIZE(ak4535_input_mixer_controls)), | |
154 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
155 | &ak4535_input_mux_control), | |
156 | SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0), | |
157 | SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, | |
158 | &ak4535_mono2_control), | |
159 | /* speaker powersave bit */ | |
160 | SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0), | |
161 | SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0, | |
162 | &ak4535_line_control), | |
163 | SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0, | |
164 | &ak4535_hpl_control), | |
165 | SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0, | |
166 | &ak4535_hpr_control), | |
167 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
168 | SND_SOC_DAPM_OUTPUT("HPL"), | |
169 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
170 | SND_SOC_DAPM_OUTPUT("HPR"), | |
171 | SND_SOC_DAPM_OUTPUT("SPP"), | |
172 | SND_SOC_DAPM_OUTPUT("SPN"), | |
173 | SND_SOC_DAPM_OUTPUT("MOUT1"), | |
174 | SND_SOC_DAPM_OUTPUT("MOUT2"), | |
175 | SND_SOC_DAPM_OUTPUT("MICOUT"), | |
176 | SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0), | |
177 | SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0), | |
178 | SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0), | |
179 | SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0), | |
180 | SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0), | |
181 | SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0), | |
182 | SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0), | |
183 | SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0), | |
184 | ||
185 | SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0), | |
186 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0), | |
187 | SND_SOC_DAPM_INPUT("MICIN"), | |
188 | SND_SOC_DAPM_INPUT("MICEXT"), | |
189 | SND_SOC_DAPM_INPUT("AUX"), | |
190 | SND_SOC_DAPM_INPUT("MIN"), | |
191 | SND_SOC_DAPM_INPUT("AIN"), | |
192 | }; | |
193 | ||
b63c963d | 194 | static const struct snd_soc_dapm_route ak4535_audio_map[] = { |
796d2ca8 RP |
195 | /*stereo mixer */ |
196 | {"Stereo Mixer", "Playback Switch", "DAC"}, | |
197 | {"Stereo Mixer", "Mic Sidetone Switch", "Mic"}, | |
198 | {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, | |
199 | ||
200 | /* mono1 mixer */ | |
201 | {"Mono1 Mixer", "Mic Sidetone Switch", "Mic"}, | |
202 | {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, | |
203 | ||
204 | /* Mic */ | |
205 | {"Mic", NULL, "AIN"}, | |
206 | {"Input Mux", "Internal", "Mic Int Bias"}, | |
207 | {"Input Mux", "External", "Mic Ext Bias"}, | |
208 | {"Mic Int Bias", NULL, "MICIN"}, | |
209 | {"Mic Ext Bias", NULL, "MICEXT"}, | |
210 | {"MICOUT", NULL, "Input Mux"}, | |
211 | ||
212 | /* line out */ | |
213 | {"LOUT", NULL, "Line Out Enable"}, | |
214 | {"ROUT", NULL, "Line Out Enable"}, | |
215 | {"Line Out Enable", "Switch", "Line Out"}, | |
216 | {"Line Out", NULL, "Stereo Mixer"}, | |
217 | ||
218 | /* mono1 out */ | |
219 | {"MOUT1", NULL, "Mono Out"}, | |
220 | {"Mono Out", NULL, "Mono1 Mixer"}, | |
221 | ||
222 | /* left HP */ | |
223 | {"HPL", NULL, "Left HP Enable"}, | |
224 | {"Left HP Enable", "Switch", "HP L Amp"}, | |
225 | {"HP L Amp", NULL, "Stereo Mixer"}, | |
226 | ||
227 | /* right HP */ | |
228 | {"HPR", NULL, "Right HP Enable"}, | |
229 | {"Right HP Enable", "Switch", "HP R Amp"}, | |
230 | {"HP R Amp", NULL, "Stereo Mixer"}, | |
231 | ||
232 | /* speaker */ | |
233 | {"SPP", NULL, "Speaker Enable"}, | |
234 | {"SPN", NULL, "Speaker Enable"}, | |
235 | {"Speaker Enable", "Switch", "Spk Amp"}, | |
236 | {"Spk Amp", NULL, "MIN"}, | |
237 | ||
238 | /* mono 2 */ | |
239 | {"MOUT2", NULL, "Mono 2 Enable"}, | |
240 | {"Mono 2 Enable", "Switch", "Stereo Mixer"}, | |
241 | ||
242 | /* Aux In */ | |
243 | {"Aux In", NULL, "AUX"}, | |
244 | ||
245 | /* ADC */ | |
246 | {"ADC", NULL, "Input Mixer"}, | |
247 | {"Input Mixer", "Mic Capture Switch", "Mic"}, | |
248 | {"Input Mixer", "Aux Capture Switch", "Aux In"}, | |
249 | }; | |
250 | ||
e550e17f | 251 | static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
252 | int clk_id, unsigned int freq, int dir) |
253 | { | |
254 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 255 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
796d2ca8 RP |
256 | |
257 | ak4535->sysclk = freq; | |
258 | return 0; | |
259 | } | |
260 | ||
261 | static int ak4535_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
262 | struct snd_pcm_hw_params *params, |
263 | struct snd_soc_dai *dai) | |
796d2ca8 | 264 | { |
e6968a17 | 265 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 266 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
3b184503 | 267 | u8 mode2 = snd_soc_read(codec, AK4535_MODE2) & ~(0x3 << 5); |
796d2ca8 RP |
268 | int rate = params_rate(params), fs = 256; |
269 | ||
270 | if (rate) | |
271 | fs = ak4535->sysclk / rate; | |
272 | ||
273 | /* set fs */ | |
274 | switch (fs) { | |
275 | case 1024: | |
276 | mode2 |= (0x2 << 5); | |
277 | break; | |
278 | case 512: | |
279 | mode2 |= (0x1 << 5); | |
280 | break; | |
281 | case 256: | |
282 | break; | |
283 | } | |
284 | ||
285 | /* set rate */ | |
3b184503 | 286 | snd_soc_write(codec, AK4535_MODE2, mode2); |
796d2ca8 RP |
287 | return 0; |
288 | } | |
289 | ||
e550e17f | 290 | static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
291 | unsigned int fmt) |
292 | { | |
293 | struct snd_soc_codec *codec = codec_dai->codec; | |
294 | u8 mode1 = 0; | |
295 | ||
296 | /* interface format */ | |
297 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
298 | case SND_SOC_DAIFMT_I2S: | |
299 | mode1 = 0x0002; | |
300 | break; | |
301 | case SND_SOC_DAIFMT_LEFT_J: | |
302 | mode1 = 0x0001; | |
303 | break; | |
304 | default: | |
305 | return -EINVAL; | |
306 | } | |
307 | ||
308 | /* use 32 fs for BCLK to save power */ | |
309 | mode1 |= 0x4; | |
310 | ||
3b184503 | 311 | snd_soc_write(codec, AK4535_MODE1, mode1); |
796d2ca8 RP |
312 | return 0; |
313 | } | |
314 | ||
e550e17f | 315 | static int ak4535_mute(struct snd_soc_dai *dai, int mute) |
796d2ca8 RP |
316 | { |
317 | struct snd_soc_codec *codec = dai->codec; | |
3b184503 | 318 | u16 mute_reg = snd_soc_read(codec, AK4535_DAC); |
796d2ca8 | 319 | if (!mute) |
3b184503 | 320 | snd_soc_write(codec, AK4535_DAC, mute_reg & ~0x20); |
796d2ca8 | 321 | else |
3b184503 | 322 | snd_soc_write(codec, AK4535_DAC, mute_reg | 0x20); |
796d2ca8 RP |
323 | return 0; |
324 | } | |
325 | ||
326 | static int ak4535_set_bias_level(struct snd_soc_codec *codec, | |
327 | enum snd_soc_bias_level level) | |
328 | { | |
796d2ca8 RP |
329 | switch (level) { |
330 | case SND_SOC_BIAS_ON: | |
3b184503 | 331 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0); |
796d2ca8 RP |
332 | break; |
333 | case SND_SOC_BIAS_PREPARE: | |
3b184503 | 334 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0x20); |
796d2ca8 RP |
335 | break; |
336 | case SND_SOC_BIAS_STANDBY: | |
3b184503 AL |
337 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0x80); |
338 | snd_soc_update_bits(codec, AK4535_PM2, 0x80, 0); | |
796d2ca8 RP |
339 | break; |
340 | case SND_SOC_BIAS_OFF: | |
3b184503 | 341 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0); |
796d2ca8 RP |
342 | break; |
343 | } | |
796d2ca8 RP |
344 | return 0; |
345 | } | |
346 | ||
347 | #define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
348 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
349 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
350 | ||
85e7652d | 351 | static const struct snd_soc_dai_ops ak4535_dai_ops = { |
6335d055 EM |
352 | .hw_params = ak4535_hw_params, |
353 | .set_fmt = ak4535_set_dai_fmt, | |
354 | .digital_mute = ak4535_mute, | |
355 | .set_sysclk = ak4535_set_dai_sysclk, | |
356 | }; | |
357 | ||
f0fba2ad LG |
358 | static struct snd_soc_dai_driver ak4535_dai = { |
359 | .name = "ak4535-hifi", | |
796d2ca8 RP |
360 | .playback = { |
361 | .stream_name = "Playback", | |
362 | .channels_min = 1, | |
363 | .channels_max = 2, | |
364 | .rates = AK4535_RATES, | |
365 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
366 | .capture = { | |
367 | .stream_name = "Capture", | |
368 | .channels_min = 1, | |
369 | .channels_max = 2, | |
370 | .rates = AK4535_RATES, | |
371 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
6335d055 | 372 | .ops = &ak4535_dai_ops, |
796d2ca8 | 373 | }; |
796d2ca8 | 374 | |
f0fba2ad | 375 | static int ak4535_resume(struct snd_soc_codec *codec) |
796d2ca8 | 376 | { |
3b184503 | 377 | snd_soc_cache_sync(codec); |
796d2ca8 RP |
378 | return 0; |
379 | } | |
380 | ||
a1fa9213 MB |
381 | static const struct regmap_config ak4535_regmap = { |
382 | .reg_bits = 8, | |
383 | .val_bits = 8, | |
384 | ||
385 | .max_register = AK4535_STATUS, | |
386 | .volatile_reg = ak4535_volatile, | |
387 | ||
388 | .cache_type = REGCACHE_RBTREE, | |
389 | .reg_defaults = ak4535_reg_defaults, | |
390 | .num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults), | |
391 | }; | |
392 | ||
f0fba2ad | 393 | static struct snd_soc_codec_driver soc_codec_dev_ak4535 = { |
f0fba2ad | 394 | .resume = ak4535_resume, |
f0fba2ad | 395 | .set_bias_level = ak4535_set_bias_level, |
93134842 LPC |
396 | .suspend_bias_off = true, |
397 | ||
4caab419 LPC |
398 | .controls = ak4535_snd_controls, |
399 | .num_controls = ARRAY_SIZE(ak4535_snd_controls), | |
b63c963d LG |
400 | .dapm_widgets = ak4535_dapm_widgets, |
401 | .num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets), | |
402 | .dapm_routes = ak4535_audio_map, | |
403 | .num_dapm_routes = ARRAY_SIZE(ak4535_audio_map), | |
f0fba2ad | 404 | }; |
796d2ca8 | 405 | |
7a79e94e BP |
406 | static int ak4535_i2c_probe(struct i2c_client *i2c, |
407 | const struct i2c_device_id *id) | |
796d2ca8 | 408 | { |
f0fba2ad | 409 | struct ak4535_priv *ak4535; |
796d2ca8 RP |
410 | int ret; |
411 | ||
7246492d AL |
412 | ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv), |
413 | GFP_KERNEL); | |
f0fba2ad LG |
414 | if (ak4535 == NULL) |
415 | return -ENOMEM; | |
796d2ca8 | 416 | |
77d19b10 | 417 | ak4535->regmap = devm_regmap_init_i2c(i2c, &ak4535_regmap); |
a1fa9213 MB |
418 | if (IS_ERR(ak4535->regmap)) { |
419 | ret = PTR_ERR(ak4535->regmap); | |
420 | dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); | |
421 | return ret; | |
422 | } | |
423 | ||
f0fba2ad | 424 | i2c_set_clientdata(i2c, ak4535); |
796d2ca8 | 425 | |
f0fba2ad LG |
426 | ret = snd_soc_register_codec(&i2c->dev, |
427 | &soc_codec_dev_ak4535, &ak4535_dai, 1); | |
a1fa9213 | 428 | |
796d2ca8 RP |
429 | return ret; |
430 | } | |
431 | ||
7a79e94e | 432 | static int ak4535_i2c_remove(struct i2c_client *client) |
796d2ca8 | 433 | { |
f0fba2ad | 434 | snd_soc_unregister_codec(&client->dev); |
796d2ca8 RP |
435 | return 0; |
436 | } | |
437 | ||
d28d2713 JD |
438 | static const struct i2c_device_id ak4535_i2c_id[] = { |
439 | { "ak4535", 0 }, | |
440 | { } | |
441 | }; | |
442 | MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); | |
796d2ca8 | 443 | |
796d2ca8 RP |
444 | static struct i2c_driver ak4535_i2c_driver = { |
445 | .driver = { | |
d69280be | 446 | .name = "ak4535", |
796d2ca8 RP |
447 | .owner = THIS_MODULE, |
448 | }, | |
d28d2713 | 449 | .probe = ak4535_i2c_probe, |
7a79e94e | 450 | .remove = ak4535_i2c_remove, |
d28d2713 | 451 | .id_table = ak4535_i2c_id, |
796d2ca8 | 452 | }; |
796d2ca8 | 453 | |
b08c5764 | 454 | module_i2c_driver(ak4535_i2c_driver); |
64089b84 | 455 | |
796d2ca8 RP |
456 | MODULE_DESCRIPTION("Soc AK4535 driver"); |
457 | MODULE_AUTHOR("Richard Purdie"); | |
458 | MODULE_LICENSE("GPL"); |