1 // SPDX-License-Identifier: GPL-2.0-or-later
2 //
3 // File:         sound/soc/codecs/ssm2602.c
4 // Author:       Cliff Cai <Cliff.Cai@analog.com>
5 //
6 // Created:      Tue June 06 2008
7 // Description:  Driver for ssm2602 sound chip
8 //
9 // Modified:
10 //               Copyright 2008 Analog Devices Inc.
11 //
12 // Bugs:         Enter bugs at http://blackfin.uclinux.org/
13 
14 #include <linux/delay.h>
15 #include <linux/module.h>
16 #include <linux/regmap.h>
17 #include <linux/slab.h>
18 
19 #include <sound/pcm.h>
20 #include <sound/pcm_params.h>
21 #include <sound/soc.h>
22 #include <sound/tlv.h>
23 
24 #include "ssm2602.h"
25 
26 /* codec private data */
27 struct ssm2602_priv {
28 	unsigned int sysclk;
29 	const struct snd_pcm_hw_constraint_list *sysclk_constraints;
30 
31 	struct regmap *regmap;
32 
33 	enum ssm2602_type type;
34 	unsigned int clk_out_pwr;
35 };
36 
37 /*
38  * ssm2602 register cache
39  * We can't read the ssm2602 register space when we are
40  * using 2 wire for device control, so we cache them instead.
41  * There is no point in caching the reset register
42  */
43 static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
44 	{ .reg = 0x00, .def = 0x0097 },
45 	{ .reg = 0x01, .def = 0x0097 },
46 	{ .reg = 0x02, .def = 0x0079 },
47 	{ .reg = 0x03, .def = 0x0079 },
48 	{ .reg = 0x04, .def = 0x000a },
49 	{ .reg = 0x05, .def = 0x0008 },
50 	{ .reg = 0x06, .def = 0x009f },
51 	{ .reg = 0x07, .def = 0x000a },
52 	{ .reg = 0x08, .def = 0x0000 },
53 	{ .reg = 0x09, .def = 0x0000 }
54 };
55 
56 
57 /*Appending several "None"s just for OSS mixer use*/
58 static const char *ssm2602_input_select[] = {
59 	"Line", "Mic",
60 };
61 
62 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
63 
64 static const struct soc_enum ssm2602_enum[] = {
65 	SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
66 			ssm2602_input_select),
67 	SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
68 			ssm2602_deemph),
69 };
70 
71 static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
72 	0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
73 	48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
74 );
75 
76 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
77 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
78 
79 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
80 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
81 	ssm260x_inpga_tlv),
82 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
83 
84 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
85 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
86 
87 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
88 };
89 
90 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
91 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
92 	0, 127, 0, ssm260x_outmix_tlv),
93 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
94 	7, 1, 0),
95 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
96 	ssm260x_sidetone_tlv),
97 
98 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
99 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
100 };
101 
102 /* Output Mixer */
103 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
104 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
105 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
106 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
107 };
108 
109 static const struct snd_kcontrol_new mic_ctl =
110 	SOC_DAPM_SINGLE("Switch", SSM2602_APANA, 1, 1, 1);
111 
112 /* Input mux */
113 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
114 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
115 
ssm2602_mic_switch_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)116 static int ssm2602_mic_switch_event(struct snd_soc_dapm_widget *w,
117 				struct snd_kcontrol *kcontrol, int event)
118 {
119 	/*
120 	 * According to the ssm2603 data sheet (control register sequencing),
121 	 * the digital core should be activated only after all necessary bits
122 	 * in the power register are enabled, and a delay determined by the
123 	 * decoupling capacitor on the VMID pin has passed. If the digital core
124 	 * is activated too early, or even before the ADC is powered up, audible
125 	 * artifacts appear at the beginning and end of the recorded signal.
126 	 *
127 	 * In practice, audible artifacts disappear well over 500 ms.
128 	 */
129 	msleep(500);
130 
131 	return 0;
132 }
133 
134 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
135 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
136 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
137 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
138 
139 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
140 
141 SND_SOC_DAPM_OUTPUT("LOUT"),
142 SND_SOC_DAPM_OUTPUT("ROUT"),
143 SND_SOC_DAPM_INPUT("RLINEIN"),
144 SND_SOC_DAPM_INPUT("LLINEIN"),
145 };
146 
147 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
148 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
149 	ssm260x_output_mixer_controls,
150 	ARRAY_SIZE(ssm260x_output_mixer_controls)),
151 
152 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
153 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
154 
155 SND_SOC_DAPM_SWITCH_E("Mic Switch", SSM2602_APANA, 1, 1, &mic_ctl,
156 		ssm2602_mic_switch_event, SND_SOC_DAPM_PRE_PMU),
157 
158 SND_SOC_DAPM_OUTPUT("LHPOUT"),
159 SND_SOC_DAPM_OUTPUT("RHPOUT"),
160 SND_SOC_DAPM_INPUT("MICIN"),
161 };
162 
163 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
164 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
165 	ssm260x_output_mixer_controls,
166 	ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
167 };
168 
169 static const struct snd_soc_dapm_route ssm260x_routes[] = {
170 	{"DAC", NULL, "Digital Core Power"},
171 	{"ADC", NULL, "Digital Core Power"},
172 
173 	{"Output Mixer", "Line Bypass Switch", "Line Input"},
174 	{"Output Mixer", "HiFi Playback Switch", "DAC"},
175 
176 	{"ROUT", NULL, "Output Mixer"},
177 	{"LOUT", NULL, "Output Mixer"},
178 
179 	{"Line Input", NULL, "LLINEIN"},
180 	{"Line Input", NULL, "RLINEIN"},
181 };
182 
183 static const struct snd_soc_dapm_route ssm2602_routes[] = {
184 	{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
185 
186 	{"RHPOUT", NULL, "Output Mixer"},
187 	{"LHPOUT", NULL, "Output Mixer"},
188 
189 	{"Input Mux", "Line", "Line Input"},
190 	{"Input Mux", "Mic", "Mic Switch"},
191 	{"ADC", NULL, "Input Mux"},
192 
193 	{"Mic Switch", NULL, "Mic Bias"},
194 
195 	{"Mic Bias", NULL, "MICIN"},
196 };
197 
198 static const struct snd_soc_dapm_route ssm2604_routes[] = {
199 	{"ADC", NULL, "Line Input"},
200 };
201 
202 static const unsigned int ssm2602_rates_12288000[] = {
203 	8000, 16000, 32000, 48000, 96000,
204 };
205 
206 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
207 	.list = ssm2602_rates_12288000,
208 	.count = ARRAY_SIZE(ssm2602_rates_12288000),
209 };
210 
211 static const unsigned int ssm2602_rates_11289600[] = {
212 	8000, 11025, 22050, 44100, 88200,
213 };
214 
215 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
216 	.list = ssm2602_rates_11289600,
217 	.count = ARRAY_SIZE(ssm2602_rates_11289600),
218 };
219 
220 struct ssm2602_coeff {
221 	u32 mclk;
222 	u32 rate;
223 	u8 srate;
224 };
225 
226 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
227 
228 /* codec mclk clock coefficients */
229 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
230 	/* 48k */
231 	{12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
232 	{18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
233 	{12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
234 
235 	/* 32k */
236 	{12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
237 	{18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
238 	{12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
239 
240 	/* 16k */
241 	{12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
242 	{18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
243 	{12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
244 
245 	/* 8k */
246 	{12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
247 	{18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
248 	{11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
249 	{16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
250 	{12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
251 
252 	/* 96k */
253 	{12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
254 	{18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
255 	{12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
256 
257 	/* 11.025k */
258 	{11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
259 	{16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
260 	{12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
261 
262 	/* 22.05k */
263 	{11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
264 	{16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
265 	{12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
266 
267 	/* 44.1k */
268 	{11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
269 	{16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
270 	{12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
271 
272 	/* 88.2k */
273 	{11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
274 	{16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
275 	{12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
276 };
277 
ssm2602_get_coeff(int mclk,int rate)278 static inline int ssm2602_get_coeff(int mclk, int rate)
279 {
280 	int i;
281 
282 	for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
283 		if (ssm2602_coeff_table[i].rate == rate &&
284 			ssm2602_coeff_table[i].mclk == mclk)
285 			return ssm2602_coeff_table[i].srate;
286 	}
287 	return -EINVAL;
288 }
289 
ssm2602_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)290 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
291 	struct snd_pcm_hw_params *params,
292 	struct snd_soc_dai *dai)
293 {
294 	struct snd_soc_component *component = dai->component;
295 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
296 	int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
297 	unsigned int iface;
298 
299 	if (srate < 0)
300 		return srate;
301 
302 	regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
303 
304 	/* bit size */
305 	switch (params_width(params)) {
306 	case 16:
307 		iface = 0x0;
308 		break;
309 	case 20:
310 		iface = 0x4;
311 		break;
312 	case 24:
313 		iface = 0x8;
314 		break;
315 	case 32:
316 		iface = 0xc;
317 		break;
318 	default:
319 		return -EINVAL;
320 	}
321 	regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
322 		IFACE_AUDIO_DATA_LEN, iface);
323 	return 0;
324 }
325 
ssm2602_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)326 static int ssm2602_startup(struct snd_pcm_substream *substream,
327 			   struct snd_soc_dai *dai)
328 {
329 	struct snd_soc_component *component = dai->component;
330 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
331 
332 	if (ssm2602->sysclk_constraints) {
333 		snd_pcm_hw_constraint_list(substream->runtime, 0,
334 				   SNDRV_PCM_HW_PARAM_RATE,
335 				   ssm2602->sysclk_constraints);
336 	}
337 
338 	return 0;
339 }
340 
ssm2602_mute(struct snd_soc_dai * dai,int mute,int direction)341 static int ssm2602_mute(struct snd_soc_dai *dai, int mute, int direction)
342 {
343 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(dai->component);
344 
345 	if (mute)
346 		regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
347 				    APDIGI_ENABLE_DAC_MUTE,
348 				    APDIGI_ENABLE_DAC_MUTE);
349 	else
350 		regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
351 				    APDIGI_ENABLE_DAC_MUTE, 0);
352 	return 0;
353 }
354 
ssm2602_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)355 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
356 		int clk_id, unsigned int freq, int dir)
357 {
358 	struct snd_soc_component *component = codec_dai->component;
359 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
360 
361 	if (dir == SND_SOC_CLOCK_IN) {
362 		if (clk_id != SSM2602_SYSCLK)
363 			return -EINVAL;
364 
365 		switch (freq) {
366 		case 12288000:
367 		case 18432000:
368 			ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
369 			break;
370 		case 11289600:
371 		case 16934400:
372 			ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
373 			break;
374 		case 12000000:
375 			ssm2602->sysclk_constraints = NULL;
376 			break;
377 		default:
378 			return -EINVAL;
379 		}
380 		ssm2602->sysclk = freq;
381 	} else {
382 		unsigned int mask;
383 
384 		switch (clk_id) {
385 		case SSM2602_CLK_CLKOUT:
386 			mask = PWR_CLK_OUT_PDN;
387 			break;
388 		case SSM2602_CLK_XTO:
389 			mask = PWR_OSC_PDN;
390 			break;
391 		default:
392 			return -EINVAL;
393 		}
394 
395 		if (freq == 0)
396 			ssm2602->clk_out_pwr |= mask;
397 		else
398 			ssm2602->clk_out_pwr &= ~mask;
399 
400 		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
401 			PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
402 	}
403 
404 	return 0;
405 }
406 
ssm2602_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)407 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
408 		unsigned int fmt)
409 {
410 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(codec_dai->component);
411 	unsigned int iface = 0;
412 
413 	/* set master/slave audio interface */
414 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
415 	case SND_SOC_DAIFMT_CBM_CFM:
416 		iface |= 0x0040;
417 		break;
418 	case SND_SOC_DAIFMT_CBS_CFS:
419 		break;
420 	default:
421 		return -EINVAL;
422 	}
423 
424 	/* interface format */
425 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
426 	case SND_SOC_DAIFMT_I2S:
427 		iface |= 0x0002;
428 		break;
429 	case SND_SOC_DAIFMT_RIGHT_J:
430 		break;
431 	case SND_SOC_DAIFMT_LEFT_J:
432 		iface |= 0x0001;
433 		break;
434 	case SND_SOC_DAIFMT_DSP_A:
435 		iface |= 0x0013;
436 		break;
437 	case SND_SOC_DAIFMT_DSP_B:
438 		iface |= 0x0003;
439 		break;
440 	default:
441 		return -EINVAL;
442 	}
443 
444 	/* clock inversion */
445 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
446 	case SND_SOC_DAIFMT_NB_NF:
447 		break;
448 	case SND_SOC_DAIFMT_IB_IF:
449 		iface |= 0x0090;
450 		break;
451 	case SND_SOC_DAIFMT_IB_NF:
452 		iface |= 0x0080;
453 		break;
454 	case SND_SOC_DAIFMT_NB_IF:
455 		iface |= 0x0010;
456 		break;
457 	default:
458 		return -EINVAL;
459 	}
460 
461 	/* set iface */
462 	regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
463 	return 0;
464 }
465 
ssm2602_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)466 static int ssm2602_set_bias_level(struct snd_soc_component *component,
467 				 enum snd_soc_bias_level level)
468 {
469 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
470 
471 	switch (level) {
472 	case SND_SOC_BIAS_ON:
473 		/* vref/mid on, osc and clkout on if enabled */
474 		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
475 			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
476 			ssm2602->clk_out_pwr);
477 		break;
478 	case SND_SOC_BIAS_PREPARE:
479 		break;
480 	case SND_SOC_BIAS_STANDBY:
481 		/* everything off except vref/vmid, */
482 		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
483 			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
484 			PWR_CLK_OUT_PDN | PWR_OSC_PDN);
485 		break;
486 	case SND_SOC_BIAS_OFF:
487 		/* everything off */
488 		regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
489 			PWR_POWER_OFF, PWR_POWER_OFF);
490 		break;
491 
492 	}
493 	return 0;
494 }
495 
496 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
497 		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
498 		SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
499 		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
500 		SNDRV_PCM_RATE_96000)
501 
502 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
503 		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
504 
505 static const struct snd_soc_dai_ops ssm2602_dai_ops = {
506 	.startup	= ssm2602_startup,
507 	.hw_params	= ssm2602_hw_params,
508 	.mute_stream	= ssm2602_mute,
509 	.set_sysclk	= ssm2602_set_dai_sysclk,
510 	.set_fmt	= ssm2602_set_dai_fmt,
511 	.no_capture_mute = 1,
512 };
513 
514 static struct snd_soc_dai_driver ssm2602_dai = {
515 	.name = "ssm2602-hifi",
516 	.playback = {
517 		.stream_name = "Playback",
518 		.channels_min = 2,
519 		.channels_max = 2,
520 		.rates = SSM2602_RATES,
521 		.formats = SSM2602_FORMATS,},
522 	.capture = {
523 		.stream_name = "Capture",
524 		.channels_min = 2,
525 		.channels_max = 2,
526 		.rates = SSM2602_RATES,
527 		.formats = SSM2602_FORMATS,},
528 	.ops = &ssm2602_dai_ops,
529 	.symmetric_rate = 1,
530 	.symmetric_sample_bits = 1,
531 };
532 
ssm2602_resume(struct snd_soc_component * component)533 static int ssm2602_resume(struct snd_soc_component *component)
534 {
535 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
536 
537 	regcache_sync(ssm2602->regmap);
538 
539 	return 0;
540 }
541 
ssm2602_component_probe(struct snd_soc_component * component)542 static int ssm2602_component_probe(struct snd_soc_component *component)
543 {
544 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
545 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
546 	int ret;
547 
548 	regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
549 			    LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
550 	regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
551 			    ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
552 
553 	ret = snd_soc_add_component_controls(component, ssm2602_snd_controls,
554 			ARRAY_SIZE(ssm2602_snd_controls));
555 	if (ret)
556 		return ret;
557 
558 	ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
559 			ARRAY_SIZE(ssm2602_dapm_widgets));
560 	if (ret)
561 		return ret;
562 
563 	return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
564 			ARRAY_SIZE(ssm2602_routes));
565 }
566 
ssm2604_component_probe(struct snd_soc_component * component)567 static int ssm2604_component_probe(struct snd_soc_component *component)
568 {
569 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
570 	int ret;
571 
572 	ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
573 			ARRAY_SIZE(ssm2604_dapm_widgets));
574 	if (ret)
575 		return ret;
576 
577 	return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
578 			ARRAY_SIZE(ssm2604_routes));
579 }
580 
ssm260x_component_probe(struct snd_soc_component * component)581 static int ssm260x_component_probe(struct snd_soc_component *component)
582 {
583 	struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
584 	int ret;
585 
586 	ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
587 	if (ret < 0) {
588 		dev_err(component->dev, "Failed to issue reset: %d\n", ret);
589 		return ret;
590 	}
591 
592 	/* set the update bits */
593 	regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
594 			    LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
595 	regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
596 			    RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
597 	/*select Line in as default input*/
598 	regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
599 			APANA_ENABLE_MIC_BOOST);
600 
601 	switch (ssm2602->type) {
602 	case SSM2602:
603 		ret = ssm2602_component_probe(component);
604 		break;
605 	case SSM2604:
606 		ret = ssm2604_component_probe(component);
607 		break;
608 	}
609 
610 	return ret;
611 }
612 
613 static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
614 	.probe			= ssm260x_component_probe,
615 	.resume			= ssm2602_resume,
616 	.set_bias_level		= ssm2602_set_bias_level,
617 	.controls		= ssm260x_snd_controls,
618 	.num_controls		= ARRAY_SIZE(ssm260x_snd_controls),
619 	.dapm_widgets		= ssm260x_dapm_widgets,
620 	.num_dapm_widgets	= ARRAY_SIZE(ssm260x_dapm_widgets),
621 	.dapm_routes		= ssm260x_routes,
622 	.num_dapm_routes	= ARRAY_SIZE(ssm260x_routes),
623 	.suspend_bias_off	= 1,
624 	.idle_bias_on		= 1,
625 	.use_pmdown_time	= 1,
626 	.endianness		= 1,
627 	.non_legacy_dai_naming	= 1,
628 };
629 
ssm2602_register_volatile(struct device * dev,unsigned int reg)630 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
631 {
632 	return reg == SSM2602_RESET;
633 }
634 
635 const struct regmap_config ssm2602_regmap_config = {
636 	.val_bits = 9,
637 	.reg_bits = 7,
638 
639 	.max_register = SSM2602_RESET,
640 	.volatile_reg = ssm2602_register_volatile,
641 
642 	.cache_type = REGCACHE_RBTREE,
643 	.reg_defaults = ssm2602_reg,
644 	.num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
645 };
646 EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
647 
ssm2602_probe(struct device * dev,enum ssm2602_type type,struct regmap * regmap)648 int ssm2602_probe(struct device *dev, enum ssm2602_type type,
649 	struct regmap *regmap)
650 {
651 	struct ssm2602_priv *ssm2602;
652 
653 	if (IS_ERR(regmap))
654 		return PTR_ERR(regmap);
655 
656 	ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
657 	if (ssm2602 == NULL)
658 		return -ENOMEM;
659 
660 	dev_set_drvdata(dev, ssm2602);
661 	ssm2602->type = type;
662 	ssm2602->regmap = regmap;
663 
664 	return devm_snd_soc_register_component(dev, &soc_component_dev_ssm2602,
665 		&ssm2602_dai, 1);
666 }
667 EXPORT_SYMBOL_GPL(ssm2602_probe);
668 
669 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
670 MODULE_AUTHOR("Cliff Cai");
671 MODULE_LICENSE("GPL");
672