1/*
2 * File:         sound/soc/codecs/ssm2602.c
3 * Author:       Cliff Cai <Cliff.Cai@analog.com>
4 *
5 * Created:      Tue June 06 2008
6 * Description:  Driver for ssm2602 sound chip
7 *
8 * Modified:
9 *               Copyright 2008 Analog Devices Inc.
10 *
11 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
27 */
28
29#include <linux/module.h>
30#include <linux/regmap.h>
31#include <linux/slab.h>
32
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35#include <sound/soc.h>
36#include <sound/tlv.h>
37
38#include "ssm2602.h"
39
40/* codec private data */
41struct ssm2602_priv {
42	unsigned int sysclk;
43	const struct snd_pcm_hw_constraint_list *sysclk_constraints;
44
45	struct regmap *regmap;
46
47	enum ssm2602_type type;
48	unsigned int clk_out_pwr;
49};
50
51/*
52 * ssm2602 register cache
53 * We can't read the ssm2602 register space when we are
54 * using 2 wire for device control, so we cache them instead.
55 * There is no point in caching the reset register
56 */
57static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
58	0x0097, 0x0097, 0x0079, 0x0079,
59	0x000a, 0x0008, 0x009f, 0x000a,
60	0x0000, 0x0000
61};
62
63
64/*Appending several "None"s just for OSS mixer use*/
65static const char *ssm2602_input_select[] = {
66	"Line", "Mic",
67};
68
69static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
70
71static const struct soc_enum ssm2602_enum[] = {
72	SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
73			ssm2602_input_select),
74	SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
75			ssm2602_deemph),
76};
77
78static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
79	0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
80	48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
81);
82
83static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
84static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
85
86static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
87SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
88	ssm260x_inpga_tlv),
89SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
90
91SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
92SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
93
94SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
95};
96
97static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
98SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
99	0, 127, 0, ssm260x_outmix_tlv),
100SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
101	7, 1, 0),
102SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
103	ssm260x_sidetone_tlv),
104
105SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
106SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
107SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
108};
109
110/* Output Mixer */
111static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
112SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
113SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
114SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
115};
116
117/* Input mux */
118static const struct snd_kcontrol_new ssm2602_input_mux_controls =
119SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
120
121static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
122SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
123SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
124SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
125
126SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
127
128SND_SOC_DAPM_OUTPUT("LOUT"),
129SND_SOC_DAPM_OUTPUT("ROUT"),
130SND_SOC_DAPM_INPUT("RLINEIN"),
131SND_SOC_DAPM_INPUT("LLINEIN"),
132};
133
134static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
135SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
136	ssm260x_output_mixer_controls,
137	ARRAY_SIZE(ssm260x_output_mixer_controls)),
138
139SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
140SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
141
142SND_SOC_DAPM_OUTPUT("LHPOUT"),
143SND_SOC_DAPM_OUTPUT("RHPOUT"),
144SND_SOC_DAPM_INPUT("MICIN"),
145};
146
147static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
148SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
149	ssm260x_output_mixer_controls,
150	ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
151};
152
153static const struct snd_soc_dapm_route ssm260x_routes[] = {
154	{"DAC", NULL, "Digital Core Power"},
155	{"ADC", NULL, "Digital Core Power"},
156
157	{"Output Mixer", "Line Bypass Switch", "Line Input"},
158	{"Output Mixer", "HiFi Playback Switch", "DAC"},
159
160	{"ROUT", NULL, "Output Mixer"},
161	{"LOUT", NULL, "Output Mixer"},
162
163	{"Line Input", NULL, "LLINEIN"},
164	{"Line Input", NULL, "RLINEIN"},
165};
166
167static const struct snd_soc_dapm_route ssm2602_routes[] = {
168	{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
169
170	{"RHPOUT", NULL, "Output Mixer"},
171	{"LHPOUT", NULL, "Output Mixer"},
172
173	{"Input Mux", "Line", "Line Input"},
174	{"Input Mux", "Mic", "Mic Bias"},
175	{"ADC", NULL, "Input Mux"},
176
177	{"Mic Bias", NULL, "MICIN"},
178};
179
180static const struct snd_soc_dapm_route ssm2604_routes[] = {
181	{"ADC", NULL, "Line Input"},
182};
183
184static const unsigned int ssm2602_rates_12288000[] = {
185	8000, 16000, 32000, 48000, 96000,
186};
187
188static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
189	.list = ssm2602_rates_12288000,
190	.count = ARRAY_SIZE(ssm2602_rates_12288000),
191};
192
193static const unsigned int ssm2602_rates_11289600[] = {
194	8000, 11025, 22050, 44100, 88200,
195};
196
197static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
198	.list = ssm2602_rates_11289600,
199	.count = ARRAY_SIZE(ssm2602_rates_11289600),
200};
201
202struct ssm2602_coeff {
203	u32 mclk;
204	u32 rate;
205	u8 srate;
206};
207
208#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
209
210/* codec mclk clock coefficients */
211static const struct ssm2602_coeff ssm2602_coeff_table[] = {
212	/* 48k */
213	{12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
214	{18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
215	{12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
216
217	/* 32k */
218	{12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
219	{18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
220	{12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
221
222	/* 16k */
223	{12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
224	{18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
225	{12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
226
227	/* 8k */
228	{12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
229	{18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
230	{11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
231	{16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
232	{12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
233
234	/* 96k */
235	{12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
236	{18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
237	{12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
238
239	/* 11.025k */
240	{11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
241	{16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
242	{12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
243
244	/* 22.05k */
245	{11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
246	{16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
247	{12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
248
249	/* 44.1k */
250	{11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
251	{16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
252	{12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
253
254	/* 88.2k */
255	{11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
256	{16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
257	{12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
258};
259
260static inline int ssm2602_get_coeff(int mclk, int rate)
261{
262	int i;
263
264	for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
265		if (ssm2602_coeff_table[i].rate == rate &&
266			ssm2602_coeff_table[i].mclk == mclk)
267			return ssm2602_coeff_table[i].srate;
268	}
269	return -EINVAL;
270}
271
272static int ssm2602_hw_params(struct snd_pcm_substream *substream,
273	struct snd_pcm_hw_params *params,
274	struct snd_soc_dai *dai)
275{
276	struct snd_soc_codec *codec = dai->codec;
277	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
278	int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
279	unsigned int iface;
280
281	if (srate < 0)
282		return srate;
283
284	regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
285
286	/* bit size */
287	switch (params_width(params)) {
288	case 16:
289		iface = 0x0;
290		break;
291	case 20:
292		iface = 0x4;
293		break;
294	case 24:
295		iface = 0x8;
296		break;
297	case 32:
298		iface = 0xc;
299		break;
300	default:
301		return -EINVAL;
302	}
303	regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
304		IFACE_AUDIO_DATA_LEN, iface);
305	return 0;
306}
307
308static int ssm2602_startup(struct snd_pcm_substream *substream,
309			   struct snd_soc_dai *dai)
310{
311	struct snd_soc_codec *codec = dai->codec;
312	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
313
314	if (ssm2602->sysclk_constraints) {
315		snd_pcm_hw_constraint_list(substream->runtime, 0,
316				   SNDRV_PCM_HW_PARAM_RATE,
317				   ssm2602->sysclk_constraints);
318	}
319
320	return 0;
321}
322
323static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
324{
325	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
326
327	if (mute)
328		regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
329				    APDIGI_ENABLE_DAC_MUTE,
330				    APDIGI_ENABLE_DAC_MUTE);
331	else
332		regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
333				    APDIGI_ENABLE_DAC_MUTE, 0);
334	return 0;
335}
336
337static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
338		int clk_id, unsigned int freq, int dir)
339{
340	struct snd_soc_codec *codec = codec_dai->codec;
341	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
342
343	if (dir == SND_SOC_CLOCK_IN) {
344		if (clk_id != SSM2602_SYSCLK)
345			return -EINVAL;
346
347		switch (freq) {
348		case 12288000:
349		case 18432000:
350			ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
351			break;
352		case 11289600:
353		case 16934400:
354			ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
355			break;
356		case 12000000:
357			ssm2602->sysclk_constraints = NULL;
358			break;
359		default:
360			return -EINVAL;
361		}
362		ssm2602->sysclk = freq;
363	} else {
364		unsigned int mask;
365
366		switch (clk_id) {
367		case SSM2602_CLK_CLKOUT:
368			mask = PWR_CLK_OUT_PDN;
369			break;
370		case SSM2602_CLK_XTO:
371			mask = PWR_OSC_PDN;
372			break;
373		default:
374			return -EINVAL;
375		}
376
377		if (freq == 0)
378			ssm2602->clk_out_pwr |= mask;
379		else
380			ssm2602->clk_out_pwr &= ~mask;
381
382		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
383			PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
384	}
385
386	return 0;
387}
388
389static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
390		unsigned int fmt)
391{
392	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
393	unsigned int iface = 0;
394
395	/* set master/slave audio interface */
396	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
397	case SND_SOC_DAIFMT_CBM_CFM:
398		iface |= 0x0040;
399		break;
400	case SND_SOC_DAIFMT_CBS_CFS:
401		break;
402	default:
403		return -EINVAL;
404	}
405
406	/* interface format */
407	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
408	case SND_SOC_DAIFMT_I2S:
409		iface |= 0x0002;
410		break;
411	case SND_SOC_DAIFMT_RIGHT_J:
412		break;
413	case SND_SOC_DAIFMT_LEFT_J:
414		iface |= 0x0001;
415		break;
416	case SND_SOC_DAIFMT_DSP_A:
417		iface |= 0x0013;
418		break;
419	case SND_SOC_DAIFMT_DSP_B:
420		iface |= 0x0003;
421		break;
422	default:
423		return -EINVAL;
424	}
425
426	/* clock inversion */
427	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
428	case SND_SOC_DAIFMT_NB_NF:
429		break;
430	case SND_SOC_DAIFMT_IB_IF:
431		iface |= 0x0090;
432		break;
433	case SND_SOC_DAIFMT_IB_NF:
434		iface |= 0x0080;
435		break;
436	case SND_SOC_DAIFMT_NB_IF:
437		iface |= 0x0010;
438		break;
439	default:
440		return -EINVAL;
441	}
442
443	/* set iface */
444	regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
445	return 0;
446}
447
448static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
449				 enum snd_soc_bias_level level)
450{
451	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
452
453	switch (level) {
454	case SND_SOC_BIAS_ON:
455		/* vref/mid on, osc and clkout on if enabled */
456		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
457			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
458			ssm2602->clk_out_pwr);
459		break;
460	case SND_SOC_BIAS_PREPARE:
461		break;
462	case SND_SOC_BIAS_STANDBY:
463		/* everything off except vref/vmid, */
464		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
465			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
466			PWR_CLK_OUT_PDN | PWR_OSC_PDN);
467		break;
468	case SND_SOC_BIAS_OFF:
469		/* everything off */
470		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
471			PWR_POWER_OFF, PWR_POWER_OFF);
472		break;
473
474	}
475	return 0;
476}
477
478#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
479		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
480		SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
481		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
482		SNDRV_PCM_RATE_96000)
483
484#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
485		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
486
487static const struct snd_soc_dai_ops ssm2602_dai_ops = {
488	.startup	= ssm2602_startup,
489	.hw_params	= ssm2602_hw_params,
490	.digital_mute	= ssm2602_mute,
491	.set_sysclk	= ssm2602_set_dai_sysclk,
492	.set_fmt	= ssm2602_set_dai_fmt,
493};
494
495static struct snd_soc_dai_driver ssm2602_dai = {
496	.name = "ssm2602-hifi",
497	.playback = {
498		.stream_name = "Playback",
499		.channels_min = 2,
500		.channels_max = 2,
501		.rates = SSM2602_RATES,
502		.formats = SSM2602_FORMATS,},
503	.capture = {
504		.stream_name = "Capture",
505		.channels_min = 2,
506		.channels_max = 2,
507		.rates = SSM2602_RATES,
508		.formats = SSM2602_FORMATS,},
509	.ops = &ssm2602_dai_ops,
510	.symmetric_rates = 1,
511	.symmetric_samplebits = 1,
512};
513
514static int ssm2602_resume(struct snd_soc_codec *codec)
515{
516	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
517
518	regcache_sync(ssm2602->regmap);
519
520	return 0;
521}
522
523static int ssm2602_codec_probe(struct snd_soc_codec *codec)
524{
525	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
526	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
527	int ret;
528
529	regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
530			    LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
531	regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
532			    ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
533
534	ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
535			ARRAY_SIZE(ssm2602_snd_controls));
536	if (ret)
537		return ret;
538
539	ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
540			ARRAY_SIZE(ssm2602_dapm_widgets));
541	if (ret)
542		return ret;
543
544	return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
545			ARRAY_SIZE(ssm2602_routes));
546}
547
548static int ssm2604_codec_probe(struct snd_soc_codec *codec)
549{
550	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
551	int ret;
552
553	ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
554			ARRAY_SIZE(ssm2604_dapm_widgets));
555	if (ret)
556		return ret;
557
558	return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
559			ARRAY_SIZE(ssm2604_routes));
560}
561
562static int ssm260x_codec_probe(struct snd_soc_codec *codec)
563{
564	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
565	int ret;
566
567	ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
568	if (ret < 0) {
569		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
570		return ret;
571	}
572
573	/* set the update bits */
574	regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
575			    LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
576	regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
577			    RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
578	/*select Line in as default input*/
579	regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
580			APANA_ENABLE_MIC_BOOST);
581
582	switch (ssm2602->type) {
583	case SSM2602:
584		ret = ssm2602_codec_probe(codec);
585		break;
586	case SSM2604:
587		ret = ssm2604_codec_probe(codec);
588		break;
589	}
590
591	return ret;
592}
593
594static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
595	.probe =	ssm260x_codec_probe,
596	.resume =	ssm2602_resume,
597	.set_bias_level = ssm2602_set_bias_level,
598	.suspend_bias_off = true,
599
600	.controls = ssm260x_snd_controls,
601	.num_controls = ARRAY_SIZE(ssm260x_snd_controls),
602	.dapm_widgets = ssm260x_dapm_widgets,
603	.num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
604	.dapm_routes = ssm260x_routes,
605	.num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
606};
607
608static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
609{
610	return reg == SSM2602_RESET;
611}
612
613const struct regmap_config ssm2602_regmap_config = {
614	.val_bits = 9,
615	.reg_bits = 7,
616
617	.max_register = SSM2602_RESET,
618	.volatile_reg = ssm2602_register_volatile,
619
620	.cache_type = REGCACHE_RBTREE,
621	.reg_defaults_raw = ssm2602_reg,
622	.num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg),
623};
624EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
625
626int ssm2602_probe(struct device *dev, enum ssm2602_type type,
627	struct regmap *regmap)
628{
629	struct ssm2602_priv *ssm2602;
630
631	if (IS_ERR(regmap))
632		return PTR_ERR(regmap);
633
634	ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
635	if (ssm2602 == NULL)
636		return -ENOMEM;
637
638	dev_set_drvdata(dev, ssm2602);
639	ssm2602->type = type;
640	ssm2602->regmap = regmap;
641
642	return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602,
643		&ssm2602_dai, 1);
644}
645EXPORT_SYMBOL_GPL(ssm2602_probe);
646
647MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
648MODULE_AUTHOR("Cliff Cai");
649MODULE_LICENSE("GPL");
650