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15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/timer.h>
18#include <linux/interrupt.h>
19#include <linux/platform_device.h>
20#include <linux/i2c.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/soc.h>
24#include <sound/tlv.h>
25
26#include <asm/mach-types.h>
27#include <asm/hardware/scoop.h>
28#include <mach/regs-clock.h>
29#include <mach/regs-gpio.h>
30#include <mach/hardware.h>
31#include <linux/io.h>
32#include <mach/spi-gpio.h>
33
34#include <plat/regs-iis.h>
35
36#include "../codecs/wm8753.h"
37#include "lm4857.h"
38#include "dma.h"
39#include "s3c24xx-i2s.h"
40
41
42#define NEO_AUDIO_OFF 0
43#define NEO_GSM_CALL_AUDIO_HANDSET 1
44#define NEO_GSM_CALL_AUDIO_HEADSET 2
45#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3
46#define NEO_STEREO_TO_SPEAKERS 4
47#define NEO_STEREO_TO_HEADPHONES 5
48#define NEO_CAPTURE_HANDSET 6
49#define NEO_CAPTURE_HEADSET 7
50#define NEO_CAPTURE_BLUETOOTH 8
51
52static struct snd_soc_card neo1973;
53static struct i2c_client *i2c;
54
55static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
56 struct snd_pcm_hw_params *params)
57{
58 struct snd_soc_pcm_runtime *rtd = substream->private_data;
59 struct snd_soc_dai *codec_dai = rtd->codec_dai;
60 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
61 unsigned int pll_out = 0, bclk = 0;
62 int ret = 0;
63 unsigned long iis_clkrate;
64
65 pr_debug("Entered %s\n", __func__);
66
67 iis_clkrate = s3c24xx_i2s_get_clockrate();
68
69 switch (params_rate(params)) {
70 case 8000:
71 case 16000:
72 pll_out = 12288000;
73 break;
74 case 48000:
75 bclk = WM8753_BCLK_DIV_4;
76 pll_out = 12288000;
77 break;
78 case 96000:
79 bclk = WM8753_BCLK_DIV_2;
80 pll_out = 12288000;
81 break;
82 case 11025:
83 bclk = WM8753_BCLK_DIV_16;
84 pll_out = 11289600;
85 break;
86 case 22050:
87 bclk = WM8753_BCLK_DIV_8;
88 pll_out = 11289600;
89 break;
90 case 44100:
91 bclk = WM8753_BCLK_DIV_4;
92 pll_out = 11289600;
93 break;
94 case 88200:
95 bclk = WM8753_BCLK_DIV_2;
96 pll_out = 11289600;
97 break;
98 }
99
100
101 ret = snd_soc_dai_set_fmt(codec_dai,
102 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
103 SND_SOC_DAIFMT_CBM_CFM);
104 if (ret < 0)
105 return ret;
106
107
108 ret = snd_soc_dai_set_fmt(cpu_dai,
109 SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
110 SND_SOC_DAIFMT_CBM_CFM);
111 if (ret < 0)
112 return ret;
113
114
115 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
116 SND_SOC_CLOCK_IN);
117 if (ret < 0)
118 return ret;
119
120
121 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
122 S3C2410_IISMOD_32FS);
123 if (ret < 0)
124 return ret;
125
126
127 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
128 if (ret < 0)
129 return ret;
130
131
132 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
133 S3C24XX_PRESCALE(4, 4));
134 if (ret < 0)
135 return ret;
136
137
138 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
139 iis_clkrate / 4, pll_out);
140 if (ret < 0)
141 return ret;
142
143 return 0;
144}
145
146static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
147{
148 struct snd_soc_pcm_runtime *rtd = substream->private_data;
149 struct snd_soc_dai *codec_dai = rtd->codec_dai;
150
151 pr_debug("Entered %s\n", __func__);
152
153
154 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
155}
156
157
158
159
160static struct snd_soc_ops neo1973_hifi_ops = {
161 .hw_params = neo1973_hifi_hw_params,
162 .hw_free = neo1973_hifi_hw_free,
163};
164
165static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
166 struct snd_pcm_hw_params *params)
167{
168 struct snd_soc_pcm_runtime *rtd = substream->private_data;
169 struct snd_soc_dai *codec_dai = rtd->codec_dai;
170 unsigned int pcmdiv = 0;
171 int ret = 0;
172 unsigned long iis_clkrate;
173
174 pr_debug("Entered %s\n", __func__);
175
176 iis_clkrate = s3c24xx_i2s_get_clockrate();
177
178 if (params_rate(params) != 8000)
179 return -EINVAL;
180 if (params_channels(params) != 1)
181 return -EINVAL;
182
183 pcmdiv = WM8753_PCM_DIV_6;
184
185
186
187 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
188 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
189 if (ret < 0)
190 return ret;
191
192
193 ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
194 SND_SOC_CLOCK_IN);
195 if (ret < 0)
196 return ret;
197
198
199 ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
200 if (ret < 0)
201 return ret;
202
203
204 ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
205 iis_clkrate / 4, 12288000);
206 if (ret < 0)
207 return ret;
208
209 return 0;
210}
211
212static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
213{
214 struct snd_soc_pcm_runtime *rtd = substream->private_data;
215 struct snd_soc_dai *codec_dai = rtd->codec_dai;
216
217 pr_debug("Entered %s\n", __func__);
218
219
220 return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
221}
222
223static struct snd_soc_ops neo1973_voice_ops = {
224 .hw_params = neo1973_voice_hw_params,
225 .hw_free = neo1973_voice_hw_free,
226};
227
228static int neo1973_scenario;
229
230static int neo1973_get_scenario(struct snd_kcontrol *kcontrol,
231 struct snd_ctl_elem_value *ucontrol)
232{
233 ucontrol->value.integer.value[0] = neo1973_scenario;
234 return 0;
235}
236
237static int set_scenario_endpoints(struct snd_soc_codec *codec, int scenario)
238{
239 struct snd_soc_dapm_context *dapm = &codec->dapm;
240
241 pr_debug("Entered %s\n", __func__);
242
243 switch (neo1973_scenario) {
244 case NEO_AUDIO_OFF:
245 snd_soc_dapm_disable_pin(dapm, "Audio Out");
246 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
247 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
248 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
249 snd_soc_dapm_disable_pin(dapm, "Call Mic");
250 break;
251 case NEO_GSM_CALL_AUDIO_HANDSET:
252 snd_soc_dapm_enable_pin(dapm, "Audio Out");
253 snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
254 snd_soc_dapm_enable_pin(dapm, "GSM Line In");
255 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
256 snd_soc_dapm_enable_pin(dapm, "Call Mic");
257 break;
258 case NEO_GSM_CALL_AUDIO_HEADSET:
259 snd_soc_dapm_enable_pin(dapm, "Audio Out");
260 snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
261 snd_soc_dapm_enable_pin(dapm, "GSM Line In");
262 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
263 snd_soc_dapm_disable_pin(dapm, "Call Mic");
264 break;
265 case NEO_GSM_CALL_AUDIO_BLUETOOTH:
266 snd_soc_dapm_disable_pin(dapm, "Audio Out");
267 snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
268 snd_soc_dapm_enable_pin(dapm, "GSM Line In");
269 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
270 snd_soc_dapm_disable_pin(dapm, "Call Mic");
271 break;
272 case NEO_STEREO_TO_SPEAKERS:
273 snd_soc_dapm_enable_pin(dapm, "Audio Out");
274 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
275 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
276 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
277 snd_soc_dapm_disable_pin(dapm, "Call Mic");
278 break;
279 case NEO_STEREO_TO_HEADPHONES:
280 snd_soc_dapm_enable_pin(dapm, "Audio Out");
281 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
282 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
283 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
284 snd_soc_dapm_disable_pin(dapm, "Call Mic");
285 break;
286 case NEO_CAPTURE_HANDSET:
287 snd_soc_dapm_disable_pin(dapm, "Audio Out");
288 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
289 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
290 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
291 snd_soc_dapm_enable_pin(dapm, "Call Mic");
292 break;
293 case NEO_CAPTURE_HEADSET:
294 snd_soc_dapm_disable_pin(dapm, "Audio Out");
295 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
296 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
297 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
298 snd_soc_dapm_disable_pin(dapm, "Call Mic");
299 break;
300 case NEO_CAPTURE_BLUETOOTH:
301 snd_soc_dapm_disable_pin(dapm, "Audio Out");
302 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
303 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
304 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
305 snd_soc_dapm_disable_pin(dapm, "Call Mic");
306 break;
307 default:
308 snd_soc_dapm_disable_pin(dapm, "Audio Out");
309 snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
310 snd_soc_dapm_disable_pin(dapm, "GSM Line In");
311 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
312 snd_soc_dapm_disable_pin(dapm, "Call Mic");
313 }
314
315 snd_soc_dapm_sync(dapm);
316
317 return 0;
318}
319
320static int neo1973_set_scenario(struct snd_kcontrol *kcontrol,
321 struct snd_ctl_elem_value *ucontrol)
322{
323 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
324
325 pr_debug("Entered %s\n", __func__);
326
327 if (neo1973_scenario == ucontrol->value.integer.value[0])
328 return 0;
329
330 neo1973_scenario = ucontrol->value.integer.value[0];
331 set_scenario_endpoints(codec, neo1973_scenario);
332 return 1;
333}
334
335static u8 lm4857_regs[4] = {0x00, 0x40, 0x80, 0xC0};
336
337static void lm4857_write_regs(void)
338{
339 pr_debug("Entered %s\n", __func__);
340
341 if (i2c_master_send(i2c, lm4857_regs, 4) != 4)
342 printk(KERN_ERR "lm4857: i2c write failed\n");
343}
344
345static int lm4857_get_reg(struct snd_kcontrol *kcontrol,
346 struct snd_ctl_elem_value *ucontrol)
347{
348 struct soc_mixer_control *mc =
349 (struct soc_mixer_control *)kcontrol->private_value;
350 int reg = mc->reg;
351 int shift = mc->shift;
352 int mask = mc->max;
353
354 pr_debug("Entered %s\n", __func__);
355
356 ucontrol->value.integer.value[0] = (lm4857_regs[reg] >> shift) & mask;
357 return 0;
358}
359
360static int lm4857_set_reg(struct snd_kcontrol *kcontrol,
361 struct snd_ctl_elem_value *ucontrol)
362{
363 struct soc_mixer_control *mc =
364 (struct soc_mixer_control *)kcontrol->private_value;
365 int reg = mc->reg;
366 int shift = mc->shift;
367 int mask = mc->max;
368
369 if (((lm4857_regs[reg] >> shift) & mask) ==
370 ucontrol->value.integer.value[0])
371 return 0;
372
373 lm4857_regs[reg] &= ~(mask << shift);
374 lm4857_regs[reg] |= ucontrol->value.integer.value[0] << shift;
375 lm4857_write_regs();
376 return 1;
377}
378
379static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
380 struct snd_ctl_elem_value *ucontrol)
381{
382 u8 value = lm4857_regs[LM4857_CTRL] & 0x0F;
383
384 pr_debug("Entered %s\n", __func__);
385
386 if (value)
387 value -= 5;
388
389 ucontrol->value.integer.value[0] = value;
390 return 0;
391}
392
393static int lm4857_set_mode(struct snd_kcontrol *kcontrol,
394 struct snd_ctl_elem_value *ucontrol)
395{
396 u8 value = ucontrol->value.integer.value[0];
397
398 pr_debug("Entered %s\n", __func__);
399
400 if (value)
401 value += 5;
402
403 if ((lm4857_regs[LM4857_CTRL] & 0x0F) == value)
404 return 0;
405
406 lm4857_regs[LM4857_CTRL] &= 0xF0;
407 lm4857_regs[LM4857_CTRL] |= value;
408 lm4857_write_regs();
409 return 1;
410}
411
412static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
413 SND_SOC_DAPM_LINE("Audio Out", NULL),
414 SND_SOC_DAPM_LINE("GSM Line Out", NULL),
415 SND_SOC_DAPM_LINE("GSM Line In", NULL),
416 SND_SOC_DAPM_MIC("Headset Mic", NULL),
417 SND_SOC_DAPM_MIC("Call Mic", NULL),
418};
419
420
421static const struct snd_soc_dapm_route dapm_routes[] = {
422
423
424 {"Audio Out", NULL, "LOUT1"},
425 {"Audio Out", NULL, "ROUT1"},
426
427
428 {"GSM Line Out", NULL, "MONO1"},
429 {"GSM Line Out", NULL, "MONO2"},
430 {"RXP", NULL, "GSM Line In"},
431 {"RXN", NULL, "GSM Line In"},
432
433
434 {"MIC1", NULL, "Mic Bias"},
435 {"Mic Bias", NULL, "Headset Mic"},
436
437
438 {"MIC2", NULL, "Mic Bias"},
439 {"MIC2N", NULL, "Mic Bias"},
440 {"Mic Bias", NULL, "Call Mic"},
441
442
443 {"ACIN", NULL, "ACOP"},
444};
445
446static const char *lm4857_mode[] = {
447 "Off",
448 "Call Speaker",
449 "Stereo Speakers",
450 "Stereo Speakers + Headphones",
451 "Headphones"
452};
453
454static const struct soc_enum lm4857_mode_enum[] = {
455 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lm4857_mode), lm4857_mode),
456};
457
458static const char *neo_scenarios[] = {
459 "Off",
460 "GSM Handset",
461 "GSM Headset",
462 "GSM Bluetooth",
463 "Speakers",
464 "Headphones",
465 "Capture Handset",
466 "Capture Headset",
467 "Capture Bluetooth"
468};
469
470static const struct soc_enum neo_scenario_enum[] = {
471 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios),
472};
473
474static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
475static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
476
477static const struct snd_kcontrol_new wm8753_neo1973_controls[] = {
478 SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
479 lm4857_get_reg, lm4857_set_reg, stereo_tlv),
480 SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
481 lm4857_get_reg, lm4857_set_reg, stereo_tlv),
482 SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
483 lm4857_get_reg, lm4857_set_reg, mono_tlv),
484 SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0],
485 lm4857_get_mode, lm4857_set_mode),
486 SOC_ENUM_EXT("Neo Mode", neo_scenario_enum[0],
487 neo1973_get_scenario, neo1973_set_scenario),
488 SOC_SINGLE_EXT("Amp Spk 3D Playback Switch", LM4857_LVOL, 5, 1, 0,
489 lm4857_get_reg, lm4857_set_reg),
490 SOC_SINGLE_EXT("Amp HP 3d Playback Switch", LM4857_RVOL, 5, 1, 0,
491 lm4857_get_reg, lm4857_set_reg),
492 SOC_SINGLE_EXT("Amp Fast Wakeup Playback Switch", LM4857_CTRL, 5, 1, 0,
493 lm4857_get_reg, lm4857_set_reg),
494 SOC_SINGLE_EXT("Amp Earpiece 6dB Playback Switch", LM4857_CTRL, 4, 1, 0,
495 lm4857_get_reg, lm4857_set_reg),
496};
497
498
499
500
501
502
503static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
504{
505 struct snd_soc_codec *codec = rtd->codec;
506 struct snd_soc_dapm_context *dapm = &codec->dapm;
507 int err;
508
509 pr_debug("Entered %s\n", __func__);
510
511
512 snd_soc_dapm_nc_pin(dapm, "LOUT2");
513 snd_soc_dapm_nc_pin(dapm, "ROUT2");
514 snd_soc_dapm_nc_pin(dapm, "OUT3");
515 snd_soc_dapm_nc_pin(dapm, "OUT4");
516 snd_soc_dapm_nc_pin(dapm, "LINE1");
517 snd_soc_dapm_nc_pin(dapm, "LINE2");
518
519
520 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
521 ARRAY_SIZE(wm8753_dapm_widgets));
522
523
524 set_scenario_endpoints(codec, NEO_AUDIO_OFF);
525
526
527 err = snd_soc_add_controls(codec, wm8753_neo1973_controls,
528 ARRAY_SIZE(8753_neo1973_controls));
529 if (err < 0)
530 return err;
531
532
533 err = snd_soc_dapm_add_routes(dapm, dapm_routes,
534 ARRAY_SIZE(dapm_routes));
535
536 snd_soc_dapm_sync(dapm);
537 return 0;
538}
539
540
541
542
543static struct snd_soc_dai bt_dai = {
544 .name = "bluetooth-dai",
545 .playback = {
546 .channels_min = 1,
547 .channels_max = 1,
548 .rates = SNDRV_PCM_RATE_8000,
549 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
550 .capture = {
551 .channels_min = 1,
552 .channels_max = 1,
553 .rates = SNDRV_PCM_RATE_8000,
554 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
555};
556
557static struct snd_soc_dai_link neo1973_dai[] = {
558{
559 .name = "WM8753",
560 .stream_name = "WM8753 HiFi",
561 .platform_name = "samsung-audio",
562 .cpu_dai_name = "s3c24xx-iis",
563 .codec_dai_name = "wm8753-hifi",
564 .codec_name = "wm8753-codec.0-001a",
565 .init = neo1973_wm8753_init,
566 .ops = &neo1973_hifi_ops,
567},
568{
569 .name = "Bluetooth",
570 .stream_name = "Voice",
571 .platform_name = "samsung-audio",
572 .cpu_dai_name = "bluetooth-dai",
573 .codec_dai_name = "wm8753-voice",
574 .codec_name = "wm8753-codec.0-001a",
575 .ops = &neo1973_voice_ops,
576},
577};
578
579static struct snd_soc_card neo1973 = {
580 .name = "neo1973",
581 .dai_link = neo1973_dai,
582 .num_links = ARRAY_SIZE(neo1973_dai),
583};
584
585static int lm4857_i2c_probe(struct i2c_client *client,
586 const struct i2c_device_id *id)
587{
588 pr_debug("Entered %s\n", __func__);
589
590 i2c = client;
591
592 lm4857_write_regs();
593 return 0;
594}
595
596static int lm4857_i2c_remove(struct i2c_client *client)
597{
598 pr_debug("Entered %s\n", __func__);
599
600 i2c = NULL;
601
602 return 0;
603}
604
605static u8 lm4857_state;
606
607static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
608{
609 pr_debug("Entered %s\n", __func__);
610
611 dev_dbg(&dev->dev, "lm4857_suspend\n");
612 lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
613 if (lm4857_state) {
614 lm4857_regs[LM4857_CTRL] &= 0xf0;
615 lm4857_write_regs();
616 }
617 return 0;
618}
619
620static int lm4857_resume(struct i2c_client *dev)
621{
622 pr_debug("Entered %s\n", __func__);
623
624 if (lm4857_state) {
625 lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
626 lm4857_write_regs();
627 }
628 return 0;
629}
630
631static void lm4857_shutdown(struct i2c_client *dev)
632{
633 pr_debug("Entered %s\n", __func__);
634
635 dev_dbg(&dev->dev, "lm4857_shutdown\n");
636 lm4857_regs[LM4857_CTRL] &= 0xf0;
637 lm4857_write_regs();
638}
639
640static const struct i2c_device_id lm4857_i2c_id[] = {
641 { "neo1973_lm4857", 0 },
642 { }
643};
644
645static struct i2c_driver lm4857_i2c_driver = {
646 .driver = {
647 .name = "LM4857 I2C Amp",
648 .owner = THIS_MODULE,
649 },
650 .suspend = lm4857_suspend,
651 .resume = lm4857_resume,
652 .shutdown = lm4857_shutdown,
653 .probe = lm4857_i2c_probe,
654 .remove = lm4857_i2c_remove,
655 .id_table = lm4857_i2c_id,
656};
657
658static struct platform_device *neo1973_snd_device;
659
660static int __init neo1973_init(void)
661{
662 int ret;
663
664 pr_debug("Entered %s\n", __func__);
665
666 if (!machine_is_neo1973_gta01()) {
667 printk(KERN_INFO
668 "Only GTA01 hardware supported by ASoC driver\n");
669 return -ENODEV;
670 }
671
672 neo1973_snd_device = platform_device_alloc("soc-audio", -1);
673 if (!neo1973_snd_device)
674 return -ENOMEM;
675
676 platform_set_drvdata(neo1973_snd_device, &neo1973);
677 ret = platform_device_add(neo1973_snd_device);
678
679 if (ret) {
680 platform_device_put(neo1973_snd_device);
681 return ret;
682 }
683
684 ret = i2c_add_driver(&lm4857_i2c_driver);
685
686 if (ret != 0)
687 platform_device_unregister(neo1973_snd_device);
688
689 return ret;
690}
691
692static void __exit neo1973_exit(void)
693{
694 pr_debug("Entered %s\n", __func__);
695
696 i2c_del_driver(&lm4857_i2c_driver);
697 platform_device_unregister(neo1973_snd_device);
698}
699
700module_init(neo1973_init);
701module_exit(neo1973_exit);
702
703
704MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
705MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973");
706MODULE_LICENSE("GPL");
707
