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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ad1980.c -- ALSA Soc AD1980 codec support
4 *
5 * Copyright: Analog Devices Inc.
6 * Author: Roy Huang <roy.huang@analog.com>
7 * Cliff Cai <cliff.cai@analog.com>
8 */
9
10/*
11 * WARNING:
12 *
13 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
14 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
15 * by ADI now.
16 */
17
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/device.h>
23#include <linux/regmap.h>
24#include <sound/core.h>
25#include <sound/pcm.h>
26#include <sound/ac97_codec.h>
27#include <sound/initval.h>
28#include <sound/soc.h>
29
30static const struct reg_default ad1980_reg_defaults[] = {
31 { 0x02, 0x8000 },
32 { 0x04, 0x8000 },
33 { 0x06, 0x8000 },
34 { 0x0c, 0x8008 },
35 { 0x0e, 0x8008 },
36 { 0x10, 0x8808 },
37 { 0x12, 0x8808 },
38 { 0x16, 0x8808 },
39 { 0x18, 0x8808 },
40 { 0x1a, 0x0000 },
41 { 0x1c, 0x8000 },
42 { 0x20, 0x0000 },
43 { 0x28, 0x03c7 },
44 { 0x2c, 0xbb80 },
45 { 0x2e, 0xbb80 },
46 { 0x30, 0xbb80 },
47 { 0x32, 0xbb80 },
48 { 0x36, 0x8080 },
49 { 0x38, 0x8080 },
50 { 0x3a, 0x2000 },
51 { 0x60, 0x0000 },
52 { 0x62, 0x0000 },
53 { 0x72, 0x0000 },
54 { 0x74, 0x1001 },
55 { 0x76, 0x0000 },
56};
57
58static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
59{
60 switch (reg) {
61 case AC97_RESET ... AC97_MASTER_MONO:
62 case AC97_PHONE ... AC97_CD:
63 case AC97_AUX ... AC97_GENERAL_PURPOSE:
64 case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
65 case AC97_SPDIF:
66 case AC97_CODEC_CLASS_REV:
67 case AC97_PCI_SVID:
68 case AC97_AD_CODEC_CFG:
69 case AC97_AD_JACK_SPDIF:
70 case AC97_AD_SERIAL_CFG:
71 case AC97_VENDOR_ID1:
72 case AC97_VENDOR_ID2:
73 return true;
74 default:
75 return false;
76 }
77}
78
79static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
80{
81 switch (reg) {
82 case AC97_VENDOR_ID1:
83 case AC97_VENDOR_ID2:
84 return false;
85 default:
86 return ad1980_readable_reg(dev, reg);
87 }
88}
89
90static const struct regmap_config ad1980_regmap_config = {
91 .reg_bits = 16,
92 .reg_stride = 2,
93 .val_bits = 16,
94 .max_register = 0x7e,
95 .cache_type = REGCACHE_MAPLE,
96
97 .volatile_reg = regmap_ac97_default_volatile,
98 .readable_reg = ad1980_readable_reg,
99 .writeable_reg = ad1980_writeable_reg,
100
101 .reg_defaults = ad1980_reg_defaults,
102 .num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
103};
104
105static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
106 "Stereo Mix", "Mono Mix", "Phone"};
107
108static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
109 AC97_REC_SEL, 8, 0, ad1980_rec_sel);
110
111static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
112SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
113SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
114
115SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
116SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
117
118SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
119SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
120
121SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
122SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
123
124SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
125SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
126
127SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
128SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
129
130SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
131SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
132
133SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
134SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
135
136SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
137SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
138
139SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
140SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
141
142SOC_ENUM("Capture Source", ad1980_cap_src),
143
144SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
145};
146
147static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
148SND_SOC_DAPM_INPUT("MIC1"),
149SND_SOC_DAPM_INPUT("MIC2"),
150SND_SOC_DAPM_INPUT("CD_L"),
151SND_SOC_DAPM_INPUT("CD_R"),
152SND_SOC_DAPM_INPUT("AUX_L"),
153SND_SOC_DAPM_INPUT("AUX_R"),
154SND_SOC_DAPM_INPUT("LINE_IN_L"),
155SND_SOC_DAPM_INPUT("LINE_IN_R"),
156
157SND_SOC_DAPM_OUTPUT("LFE_OUT"),
158SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
159SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
160SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
161SND_SOC_DAPM_OUTPUT("MONO_OUT"),
162SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
163SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
164};
165
166static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
167 { "Capture", NULL, "MIC1" },
168 { "Capture", NULL, "MIC2" },
169 { "Capture", NULL, "CD_L" },
170 { "Capture", NULL, "CD_R" },
171 { "Capture", NULL, "AUX_L" },
172 { "Capture", NULL, "AUX_R" },
173 { "Capture", NULL, "LINE_IN_L" },
174 { "Capture", NULL, "LINE_IN_R" },
175
176 { "LFE_OUT", NULL, "Playback" },
177 { "CENTER_OUT", NULL, "Playback" },
178 { "LINE_OUT_L", NULL, "Playback" },
179 { "LINE_OUT_R", NULL, "Playback" },
180 { "MONO_OUT", NULL, "Playback" },
181 { "HP_OUT_L", NULL, "Playback" },
182 { "HP_OUT_R", NULL, "Playback" },
183};
184
185static struct snd_soc_dai_driver ad1980_dai = {
186 .name = "ad1980-hifi",
187 .playback = {
188 .stream_name = "Playback",
189 .channels_min = 2,
190 .channels_max = 6,
191 .rates = SNDRV_PCM_RATE_48000,
192 .formats = SND_SOC_STD_AC97_FMTS, },
193 .capture = {
194 .stream_name = "Capture",
195 .channels_min = 2,
196 .channels_max = 2,
197 .rates = SNDRV_PCM_RATE_48000,
198 .formats = SND_SOC_STD_AC97_FMTS, },
199};
200
201#define AD1980_VENDOR_ID 0x41445300
202#define AD1980_VENDOR_MASK 0xffffff00
203
204static int ad1980_reset(struct snd_soc_component *component, int try_warm)
205{
206 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
207 unsigned int retry_cnt = 0;
208 int ret;
209
210 do {
211 ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
212 AD1980_VENDOR_MASK);
213 if (ret >= 0)
214 return 0;
215
216 /*
217 * Set bit 16slot in register 74h, then every slot will has only
218 * 16 bits. This command is sent out in 20bit mode, in which
219 * case the first nibble of data is eaten by the addr. (Tag is
220 * always 16 bit)
221 */
222 snd_soc_component_write(component, AC97_AD_SERIAL_CFG, 0x9900);
223
224 } while (retry_cnt++ < 10);
225
226 dev_err(component->dev, "Failed to reset: AC97 link error\n");
227
228 return -EIO;
229}
230
231static int ad1980_soc_probe(struct snd_soc_component *component)
232{
233 struct snd_ac97 *ac97;
234 struct regmap *regmap;
235 int ret;
236 u16 vendor_id2;
237 u16 ext_status;
238
239 ac97 = snd_soc_new_ac97_component(component, 0, 0);
240 if (IS_ERR(ac97)) {
241 ret = PTR_ERR(ac97);
242 dev_err(component->dev, "Failed to register AC97 component: %d\n", ret);
243 return ret;
244 }
245
246 regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);
247 if (IS_ERR(regmap)) {
248 ret = PTR_ERR(regmap);
249 goto err_free_ac97;
250 }
251
252 snd_soc_component_init_regmap(component, regmap);
253 snd_soc_component_set_drvdata(component, ac97);
254
255 ret = ad1980_reset(component, 0);
256 if (ret < 0)
257 goto reset_err;
258
259 vendor_id2 = snd_soc_component_read(component, AC97_VENDOR_ID2);
260 if (vendor_id2 == 0x5374) {
261 dev_warn(component->dev,
262 "Found AD1981 - only 2/2 IN/OUT Channels supported\n");
263 }
264
265 /* unmute captures and playbacks volume */
266 snd_soc_component_write(component, AC97_MASTER, 0x0000);
267 snd_soc_component_write(component, AC97_PCM, 0x0000);
268 snd_soc_component_write(component, AC97_REC_GAIN, 0x0000);
269 snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0x0000);
270 snd_soc_component_write(component, AC97_SURROUND_MASTER, 0x0000);
271
272 /*power on LFE/CENTER/Surround DACs*/
273 ext_status = snd_soc_component_read(component, AC97_EXTENDED_STATUS);
274 snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0x3800);
275
276 return 0;
277
278reset_err:
279 snd_soc_component_exit_regmap(component);
280err_free_ac97:
281 snd_soc_free_ac97_component(ac97);
282 return ret;
283}
284
285static void ad1980_soc_remove(struct snd_soc_component *component)
286{
287 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
288
289 snd_soc_component_exit_regmap(component);
290 snd_soc_free_ac97_component(ac97);
291}
292
293static const struct snd_soc_component_driver soc_component_dev_ad1980 = {
294 .probe = ad1980_soc_probe,
295 .remove = ad1980_soc_remove,
296 .controls = ad1980_snd_ac97_controls,
297 .num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls),
298 .dapm_widgets = ad1980_dapm_widgets,
299 .num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),
300 .dapm_routes = ad1980_dapm_routes,
301 .num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),
302 .idle_bias_on = 1,
303 .use_pmdown_time = 1,
304 .endianness = 1,
305};
306
307static int ad1980_probe(struct platform_device *pdev)
308{
309 return devm_snd_soc_register_component(&pdev->dev,
310 &soc_component_dev_ad1980, &ad1980_dai, 1);
311}
312
313static struct platform_driver ad1980_codec_driver = {
314 .driver = {
315 .name = "ad1980",
316 },
317
318 .probe = ad1980_probe,
319};
320
321module_platform_driver(ad1980_codec_driver);
322
323MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
324MODULE_AUTHOR("Roy Huang, Cliff Cai");
325MODULE_LICENSE("GPL");
1/*
2 * ad1980.c -- ALSA Soc AD1980 codec support
3 *
4 * Copyright: Analog Device Inc.
5 * Author: Roy Huang <roy.huang@analog.com>
6 * Cliff Cai <cliff.cai@analog.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14/*
15 * WARNING:
16 *
17 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
18 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
19 * by ADI now.
20 */
21
22#include <linux/init.h>
23#include <linux/slab.h>
24#include <linux/module.h>
25#include <linux/kernel.h>
26#include <linux/device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/ac97_codec.h>
30#include <sound/initval.h>
31#include <sound/soc.h>
32
33#include "ad1980.h"
34
35/*
36 * AD1980 register cache
37 */
38static const u16 ad1980_reg[] = {
39 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
40 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
41 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
42 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
43 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
44 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
45 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
46 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
47 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
48 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
49 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
50 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
51 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
52 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
53 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
54 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
55};
56
57static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
58 "Stereo Mix", "Mono Mix", "Phone"};
59
60static const struct soc_enum ad1980_cap_src =
61 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);
62
63static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
64SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
65SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
66
67SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
68SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
69
70SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
71SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
72
73SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
74SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
75
76SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
77SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
78
79SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
80SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
81
82SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
83SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
84
85SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
86SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
87
88SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
89SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
90
91SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
92SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
93
94SOC_ENUM("Capture Source", ad1980_cap_src),
95
96SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
97};
98
99static unsigned int ac97_read(struct snd_soc_codec *codec,
100 unsigned int reg)
101{
102 u16 *cache = codec->reg_cache;
103
104 switch (reg) {
105 case AC97_RESET:
106 case AC97_INT_PAGING:
107 case AC97_POWERDOWN:
108 case AC97_EXTENDED_STATUS:
109 case AC97_VENDOR_ID1:
110 case AC97_VENDOR_ID2:
111 return soc_ac97_ops.read(codec->ac97, reg);
112 default:
113 reg = reg >> 1;
114
115 if (reg >= ARRAY_SIZE(ad1980_reg))
116 return -EINVAL;
117
118 return cache[reg];
119 }
120}
121
122static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
123 unsigned int val)
124{
125 u16 *cache = codec->reg_cache;
126
127 soc_ac97_ops.write(codec->ac97, reg, val);
128 reg = reg >> 1;
129 if (reg < ARRAY_SIZE(ad1980_reg))
130 cache[reg] = val;
131
132 return 0;
133}
134
135static struct snd_soc_dai_driver ad1980_dai = {
136 .name = "ad1980-hifi",
137 .ac97_control = 1,
138 .playback = {
139 .stream_name = "Playback",
140 .channels_min = 2,
141 .channels_max = 6,
142 .rates = SNDRV_PCM_RATE_48000,
143 .formats = SND_SOC_STD_AC97_FMTS, },
144 .capture = {
145 .stream_name = "Capture",
146 .channels_min = 2,
147 .channels_max = 2,
148 .rates = SNDRV_PCM_RATE_48000,
149 .formats = SND_SOC_STD_AC97_FMTS, },
150};
151EXPORT_SYMBOL_GPL(ad1980_dai);
152
153static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
154{
155 u16 retry_cnt = 0;
156
157retry:
158 if (try_warm && soc_ac97_ops.warm_reset) {
159 soc_ac97_ops.warm_reset(codec->ac97);
160 if (ac97_read(codec, AC97_RESET) == 0x0090)
161 return 1;
162 }
163
164 soc_ac97_ops.reset(codec->ac97);
165 /* Set bit 16slot in register 74h, then every slot will has only 16
166 * bits. This command is sent out in 20bit mode, in which case the
167 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
168 ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
169
170 if (ac97_read(codec, AC97_RESET) != 0x0090)
171 goto err;
172 return 0;
173
174err:
175 while (retry_cnt++ < 10)
176 goto retry;
177
178 printk(KERN_ERR "AD1980 AC97 reset failed\n");
179 return -EIO;
180}
181
182static int ad1980_soc_probe(struct snd_soc_codec *codec)
183{
184 int ret;
185 u16 vendor_id2;
186 u16 ext_status;
187
188 printk(KERN_INFO "AD1980 SoC Audio Codec\n");
189
190 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
191 if (ret < 0) {
192 printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
193 return ret;
194 }
195
196 ret = ad1980_reset(codec, 0);
197 if (ret < 0) {
198 printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
199 goto reset_err;
200 }
201
202 /* Read out vendor ID to make sure it is ad1980 */
203 if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
204 goto reset_err;
205
206 vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);
207
208 if (vendor_id2 != 0x5370) {
209 if (vendor_id2 != 0x5374)
210 goto reset_err;
211 else
212 printk(KERN_WARNING "ad1980: "
213 "Found AD1981 - only 2/2 IN/OUT Channels "
214 "supported\n");
215 }
216
217 /* unmute captures and playbacks volume */
218 ac97_write(codec, AC97_MASTER, 0x0000);
219 ac97_write(codec, AC97_PCM, 0x0000);
220 ac97_write(codec, AC97_REC_GAIN, 0x0000);
221 ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
222 ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);
223
224 /*power on LFE/CENTER/Surround DACs*/
225 ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
226 ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
227
228 snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
229 ARRAY_SIZE(ad1980_snd_ac97_controls));
230
231 return 0;
232
233reset_err:
234 snd_soc_free_ac97_codec(codec);
235 return ret;
236}
237
238static int ad1980_soc_remove(struct snd_soc_codec *codec)
239{
240 snd_soc_free_ac97_codec(codec);
241 return 0;
242}
243
244static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
245 .probe = ad1980_soc_probe,
246 .remove = ad1980_soc_remove,
247 .reg_cache_size = ARRAY_SIZE(ad1980_reg),
248 .reg_word_size = sizeof(u16),
249 .reg_cache_default = ad1980_reg,
250 .reg_cache_step = 2,
251 .write = ac97_write,
252 .read = ac97_read,
253};
254
255static __devinit int ad1980_probe(struct platform_device *pdev)
256{
257 return snd_soc_register_codec(&pdev->dev,
258 &soc_codec_dev_ad1980, &ad1980_dai, 1);
259}
260
261static int __devexit ad1980_remove(struct platform_device *pdev)
262{
263 snd_soc_unregister_codec(&pdev->dev);
264 return 0;
265}
266
267static struct platform_driver ad1980_codec_driver = {
268 .driver = {
269 .name = "ad1980",
270 .owner = THIS_MODULE,
271 },
272
273 .probe = ad1980_probe,
274 .remove = __devexit_p(ad1980_remove),
275};
276
277static int __init ad1980_init(void)
278{
279 return platform_driver_register(&ad1980_codec_driver);
280}
281module_init(ad1980_init);
282
283static void __exit ad1980_exit(void)
284{
285 platform_driver_unregister(&ad1980_codec_driver);
286}
287module_exit(ad1980_exit);
288
289MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
290MODULE_AUTHOR("Roy Huang, Cliff Cai");
291MODULE_LICENSE("GPL");