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Richard Purdie796d2ca2008-06-23 14:51:28 +01001/*
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>
Mark Browna1fa9212012-02-16 23:03:44 -080021#include <linux/regmap.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090022#include <linux/slab.h>
Richard Purdie796d2ca2008-06-23 14:51:28 +010023#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/soc.h>
Richard Purdie796d2ca2008-06-23 14:51:28 +010027#include <sound/initval.h>
28
29#include "ak4535.h"
30
Richard Purdie796d2ca2008-06-23 14:51:28 +010031/* codec private data */
32struct ak4535_priv {
Mark Browna1fa9212012-02-16 23:03:44 -080033 struct regmap *regmap;
Richard Purdie796d2ca2008-06-23 14:51:28 +010034 unsigned int sysclk;
35};
36
37/*
38 * ak4535 register cache
39 */
Mark Browna1fa9212012-02-16 23:03:44 -080040static 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 },
Richard Purdie796d2ca2008-06-23 14:51:28 +010056};
57
Mark Browna1fa9212012-02-16 23:03:44 -080058static 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
Richard Purdie796d2ca2008-06-23 14:51:28 +010068static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
69static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
70static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
71static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"};
72static const char *ak4535_mic_select[] = {"Internal", "External"};
73
74static 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
82static 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
Richard Purdie796d2ca2008-06-23 14:51:28 +0100104/* Mono 1 Mixer */
105static 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 */
111static 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 */
118static 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 */
124static const struct snd_kcontrol_new ak4535_input_mux_control =
125 SOC_DAPM_ENUM("Input Select", ak4535_enum[4]);
126
127/* HP L switch */
128static const struct snd_kcontrol_new ak4535_hpl_control =
129 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1);
130
131/* HP R switch */
132static const struct snd_kcontrol_new ak4535_hpr_control =
133 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1);
134
135/* mono 2 switch */
136static const struct snd_kcontrol_new ak4535_mono2_control =
137 SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0);
138
139/* Line out switch */
140static const struct snd_kcontrol_new ak4535_line_control =
141 SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0);
142
143/* ak4535 dapm widgets */
144static 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
Lu Guanqunb63c9632011-03-30 21:53:07 +0800194static const struct snd_soc_dapm_route ak4535_audio_map[] = {
Richard Purdie796d2ca2008-06-23 14:51:28 +0100195 /*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
Liam Girdwoode550e172008-07-07 16:07:52 +0100251static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
Richard Purdie796d2ca2008-06-23 14:51:28 +0100252 int clk_id, unsigned int freq, int dir)
253{
254 struct snd_soc_codec *codec = codec_dai->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900255 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100256
257 ak4535->sysclk = freq;
258 return 0;
259}
260
261static int ak4535_hw_params(struct snd_pcm_substream *substream,
Mark Browndee89c42008-11-18 22:11:38 +0000262 struct snd_pcm_hw_params *params,
263 struct snd_soc_dai *dai)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100264{
265 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000266 struct snd_soc_codec *codec = rtd->codec;
Mark Brownb2c812e2010-04-14 15:35:19 +0900267 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
Axel Lin3b184502011-10-06 10:11:51 +0800268 u8 mode2 = snd_soc_read(codec, AK4535_MODE2) & ~(0x3 << 5);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100269 int rate = params_rate(params), fs = 256;
270
271 if (rate)
272 fs = ak4535->sysclk / rate;
273
274 /* set fs */
275 switch (fs) {
276 case 1024:
277 mode2 |= (0x2 << 5);
278 break;
279 case 512:
280 mode2 |= (0x1 << 5);
281 break;
282 case 256:
283 break;
284 }
285
286 /* set rate */
Axel Lin3b184502011-10-06 10:11:51 +0800287 snd_soc_write(codec, AK4535_MODE2, mode2);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100288 return 0;
289}
290
Liam Girdwoode550e172008-07-07 16:07:52 +0100291static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
Richard Purdie796d2ca2008-06-23 14:51:28 +0100292 unsigned int fmt)
293{
294 struct snd_soc_codec *codec = codec_dai->codec;
295 u8 mode1 = 0;
296
297 /* interface format */
298 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
299 case SND_SOC_DAIFMT_I2S:
300 mode1 = 0x0002;
301 break;
302 case SND_SOC_DAIFMT_LEFT_J:
303 mode1 = 0x0001;
304 break;
305 default:
306 return -EINVAL;
307 }
308
309 /* use 32 fs for BCLK to save power */
310 mode1 |= 0x4;
311
Axel Lin3b184502011-10-06 10:11:51 +0800312 snd_soc_write(codec, AK4535_MODE1, mode1);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100313 return 0;
314}
315
Liam Girdwoode550e172008-07-07 16:07:52 +0100316static int ak4535_mute(struct snd_soc_dai *dai, int mute)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100317{
318 struct snd_soc_codec *codec = dai->codec;
Axel Lin3b184502011-10-06 10:11:51 +0800319 u16 mute_reg = snd_soc_read(codec, AK4535_DAC);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100320 if (!mute)
Axel Lin3b184502011-10-06 10:11:51 +0800321 snd_soc_write(codec, AK4535_DAC, mute_reg & ~0x20);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100322 else
Axel Lin3b184502011-10-06 10:11:51 +0800323 snd_soc_write(codec, AK4535_DAC, mute_reg | 0x20);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100324 return 0;
325}
326
327static int ak4535_set_bias_level(struct snd_soc_codec *codec,
328 enum snd_soc_bias_level level)
329{
Richard Purdie796d2ca2008-06-23 14:51:28 +0100330 switch (level) {
331 case SND_SOC_BIAS_ON:
Axel Lin3b184502011-10-06 10:11:51 +0800332 snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100333 break;
334 case SND_SOC_BIAS_PREPARE:
Axel Lin3b184502011-10-06 10:11:51 +0800335 snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0x20);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100336 break;
337 case SND_SOC_BIAS_STANDBY:
Axel Lin3b184502011-10-06 10:11:51 +0800338 snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0x80);
339 snd_soc_update_bits(codec, AK4535_PM2, 0x80, 0);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100340 break;
341 case SND_SOC_BIAS_OFF:
Axel Lin3b184502011-10-06 10:11:51 +0800342 snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100343 break;
344 }
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200345 codec->dapm.bias_level = level;
Richard Purdie796d2ca2008-06-23 14:51:28 +0100346 return 0;
347}
348
349#define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
350 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
351 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
352
Lars-Peter Clausen85e76522011-11-23 11:40:40 +0100353static const struct snd_soc_dai_ops ak4535_dai_ops = {
Eric Miao6335d052009-03-03 09:41:00 +0800354 .hw_params = ak4535_hw_params,
355 .set_fmt = ak4535_set_dai_fmt,
356 .digital_mute = ak4535_mute,
357 .set_sysclk = ak4535_set_dai_sysclk,
358};
359
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000360static struct snd_soc_dai_driver ak4535_dai = {
361 .name = "ak4535-hifi",
Richard Purdie796d2ca2008-06-23 14:51:28 +0100362 .playback = {
363 .stream_name = "Playback",
364 .channels_min = 1,
365 .channels_max = 2,
366 .rates = AK4535_RATES,
367 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
368 .capture = {
369 .stream_name = "Capture",
370 .channels_min = 1,
371 .channels_max = 2,
372 .rates = AK4535_RATES,
373 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
Eric Miao6335d052009-03-03 09:41:00 +0800374 .ops = &ak4535_dai_ops,
Richard Purdie796d2ca2008-06-23 14:51:28 +0100375};
Richard Purdie796d2ca2008-06-23 14:51:28 +0100376
Lars-Peter Clausen84b315e2011-12-02 10:18:28 +0100377static int ak4535_suspend(struct snd_soc_codec *codec)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100378{
Richard Purdie796d2ca2008-06-23 14:51:28 +0100379 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
380 return 0;
381}
382
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000383static int ak4535_resume(struct snd_soc_codec *codec)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100384{
Axel Lin3b184502011-10-06 10:11:51 +0800385 snd_soc_cache_sync(codec);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100386 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100387 return 0;
388}
389
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000390static int ak4535_probe(struct snd_soc_codec *codec)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100391{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000392 struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec);
Axel Lin3b184502011-10-06 10:11:51 +0800393 int ret;
Richard Purdie796d2ca2008-06-23 14:51:28 +0100394
Mark Browna1fa9212012-02-16 23:03:44 -0800395 codec->control_data = ak4535->regmap;
396 ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
Axel Lin3b184502011-10-06 10:11:51 +0800397 if (ret < 0) {
398 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
399 return ret;
400 }
Richard Purdie796d2ca2008-06-23 14:51:28 +0100401 /* power on device */
402 ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
403
Liam Girdwood022658b2012-02-03 17:43:09 +0000404 snd_soc_add_codec_controls(codec, ak4535_snd_controls,
Ian Molton3e8e1952009-01-09 00:23:21 +0000405 ARRAY_SIZE(ak4535_snd_controls));
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000406 return 0;
Richard Purdie796d2ca2008-06-23 14:51:28 +0100407}
408
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000409/* power down chip */
410static int ak4535_remove(struct snd_soc_codec *codec)
411{
412 ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF);
413 return 0;
414}
415
Mark Browna1fa9212012-02-16 23:03:44 -0800416static const struct regmap_config ak4535_regmap = {
417 .reg_bits = 8,
418 .val_bits = 8,
419
420 .max_register = AK4535_STATUS,
421 .volatile_reg = ak4535_volatile,
422
423 .cache_type = REGCACHE_RBTREE,
424 .reg_defaults = ak4535_reg_defaults,
425 .num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults),
426};
427
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000428static struct snd_soc_codec_driver soc_codec_dev_ak4535 = {
429 .probe = ak4535_probe,
430 .remove = ak4535_remove,
431 .suspend = ak4535_suspend,
432 .resume = ak4535_resume,
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000433 .set_bias_level = ak4535_set_bias_level,
Lu Guanqunb63c9632011-03-30 21:53:07 +0800434 .dapm_widgets = ak4535_dapm_widgets,
435 .num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets),
436 .dapm_routes = ak4535_audio_map,
437 .num_dapm_routes = ARRAY_SIZE(ak4535_audio_map),
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000438};
Richard Purdie796d2ca2008-06-23 14:51:28 +0100439
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000440static __devinit int ak4535_i2c_probe(struct i2c_client *i2c,
441 const struct i2c_device_id *id)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100442{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000443 struct ak4535_priv *ak4535;
Richard Purdie796d2ca2008-06-23 14:51:28 +0100444 int ret;
445
Axel Lin72464922011-12-20 14:38:09 +0800446 ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv),
447 GFP_KERNEL);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000448 if (ak4535 == NULL)
449 return -ENOMEM;
Richard Purdie796d2ca2008-06-23 14:51:28 +0100450
Mark Browna1fa9212012-02-16 23:03:44 -0800451 ak4535->regmap = regmap_init_i2c(i2c, &ak4535_regmap);
452 if (IS_ERR(ak4535->regmap)) {
453 ret = PTR_ERR(ak4535->regmap);
454 dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
455 return ret;
456 }
457
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000458 i2c_set_clientdata(i2c, ak4535);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000459
460 ret = snd_soc_register_codec(&i2c->dev,
461 &soc_codec_dev_ak4535, &ak4535_dai, 1);
Mark Browna1fa9212012-02-16 23:03:44 -0800462 if (ret != 0)
463 regmap_exit(ak4535->regmap);
464
Richard Purdie796d2ca2008-06-23 14:51:28 +0100465 return ret;
466}
467
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000468static __devexit int ak4535_i2c_remove(struct i2c_client *client)
Richard Purdie796d2ca2008-06-23 14:51:28 +0100469{
Mark Browna1fa9212012-02-16 23:03:44 -0800470 struct ak4535_priv *ak4535 = i2c_get_clientdata(client);
471
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000472 snd_soc_unregister_codec(&client->dev);
Mark Browna1fa9212012-02-16 23:03:44 -0800473 regmap_exit(ak4535->regmap);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100474 return 0;
475}
476
Jean Delvared28d2712008-09-01 18:46:59 +0100477static const struct i2c_device_id ak4535_i2c_id[] = {
478 { "ak4535", 0 },
479 { }
480};
481MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);
Richard Purdie796d2ca2008-06-23 14:51:28 +0100482
Richard Purdie796d2ca2008-06-23 14:51:28 +0100483static struct i2c_driver ak4535_i2c_driver = {
484 .driver = {
Mark Brownd69280b2012-02-16 22:52:19 -0800485 .name = "ak4535",
Richard Purdie796d2ca2008-06-23 14:51:28 +0100486 .owner = THIS_MODULE,
487 },
Jean Delvared28d2712008-09-01 18:46:59 +0100488 .probe = ak4535_i2c_probe,
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000489 .remove = __devexit_p(ak4535_i2c_remove),
Jean Delvared28d2712008-09-01 18:46:59 +0100490 .id_table = ak4535_i2c_id,
Richard Purdie796d2ca2008-06-23 14:51:28 +0100491};
Richard Purdie796d2ca2008-06-23 14:51:28 +0100492
Mark Brownb08c5762012-02-16 22:52:44 -0800493module_i2c_driver(ak4535_i2c_driver);
Mark Brown64089b82008-12-08 19:17:58 +0000494
Richard Purdie796d2ca2008-06-23 14:51:28 +0100495MODULE_DESCRIPTION("Soc AK4535 driver");
496MODULE_AUTHOR("Richard Purdie");
497MODULE_LICENSE("GPL");