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6
7#include <linux/module.h>
8#include <linux/errno.h>
9#include <linux/device.h>
10#include <linux/i2c.h>
11#include <linux/pm_runtime.h>
12#include <linux/regmap.h>
13#include <linux/slab.h>
14#include <linux/gpio/consumer.h>
15#include <linux/regulator/consumer.h>
16#include <linux/delay.h>
17
18#include <sound/pcm.h>
19#include <sound/pcm_params.h>
20#include <sound/soc.h>
21#include <sound/soc-dapm.h>
22#include <sound/tlv.h>
23
24#include "tas2562.h"
25
26#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
27 SNDRV_PCM_FORMAT_S32_LE)
28
29
30
31
32
33static const unsigned int float_vol_db_lookup[] = {
340x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
350x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
360x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
370x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
380x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
390x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
400x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
410x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
420x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
430x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
440x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
45};
46
47struct tas2562_data {
48 struct snd_soc_component *component;
49 struct gpio_desc *sdz_gpio;
50 struct regmap *regmap;
51 struct device *dev;
52 struct i2c_client *client;
53 int v_sense_slot;
54 int i_sense_slot;
55 int volume_lvl;
56};
57
58enum tas256x_model {
59 TAS2562,
60 TAS2563,
61};
62
63static int tas2562_set_bias_level(struct snd_soc_component *component,
64 enum snd_soc_bias_level level)
65{
66 struct tas2562_data *tas2562 =
67 snd_soc_component_get_drvdata(component);
68
69 switch (level) {
70 case SND_SOC_BIAS_ON:
71 snd_soc_component_update_bits(component,
72 TAS2562_PWR_CTRL,
73 TAS2562_MODE_MASK, TAS2562_ACTIVE);
74 break;
75 case SND_SOC_BIAS_STANDBY:
76 case SND_SOC_BIAS_PREPARE:
77 snd_soc_component_update_bits(component,
78 TAS2562_PWR_CTRL,
79 TAS2562_MODE_MASK, TAS2562_MUTE);
80 break;
81 case SND_SOC_BIAS_OFF:
82 snd_soc_component_update_bits(component,
83 TAS2562_PWR_CTRL,
84 TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
85 break;
86
87 default:
88 dev_err(tas2562->dev,
89 "wrong power level setting %d\n", level);
90 return -EINVAL;
91 }
92
93 return 0;
94}
95
96static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
97{
98 int samp_rate;
99 int ramp_rate;
100
101 switch (samplerate) {
102 case 7350:
103 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
104 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
105 break;
106 case 8000:
107 ramp_rate = 0;
108 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
109 break;
110 case 14700:
111 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
112 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
113 break;
114 case 16000:
115 ramp_rate = 0;
116 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
117 break;
118 case 22050:
119 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
120 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
121 break;
122 case 24000:
123 ramp_rate = 0;
124 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
125 break;
126 case 29400:
127 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
128 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
129 break;
130 case 32000:
131 ramp_rate = 0;
132 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
133 break;
134 case 44100:
135 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
136 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
137 break;
138 case 48000:
139 ramp_rate = 0;
140 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
141 break;
142 case 88200:
143 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
144 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
145 break;
146 case 96000:
147 ramp_rate = 0;
148 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
149 break;
150 case 176400:
151 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
152 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
153 break;
154 case 192000:
155 ramp_rate = 0;
156 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
157 break;
158 default:
159 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
160 __func__, samplerate);
161 return -EINVAL;
162 }
163
164 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
165 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
166 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
167 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
168
169 return 0;
170}
171
172static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
173 unsigned int tx_mask, unsigned int rx_mask,
174 int slots, int slot_width)
175{
176 struct snd_soc_component *component = dai->component;
177 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
178 int left_slot, right_slot;
179 int slots_cfg;
180 int ret;
181
182 if (!tx_mask) {
183 dev_err(component->dev, "tx masks must not be 0\n");
184 return -EINVAL;
185 }
186
187 if (slots == 1) {
188 if (tx_mask != 1)
189 return -EINVAL;
190
191 left_slot = 0;
192 right_slot = 0;
193 } else {
194 left_slot = __ffs(tx_mask);
195 tx_mask &= ~(1 << left_slot);
196 if (tx_mask == 0) {
197 right_slot = left_slot;
198 } else {
199 right_slot = __ffs(tx_mask);
200 tx_mask &= ~(1 << right_slot);
201 }
202 }
203
204 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
205
206 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
207 if (ret < 0)
208 return ret;
209
210 switch (slot_width) {
211 case 16:
212 ret = snd_soc_component_update_bits(component,
213 TAS2562_TDM_CFG2,
214 TAS2562_TDM_CFG2_RXLEN_MASK,
215 TAS2562_TDM_CFG2_RXLEN_16B);
216 break;
217 case 24:
218 ret = snd_soc_component_update_bits(component,
219 TAS2562_TDM_CFG2,
220 TAS2562_TDM_CFG2_RXLEN_MASK,
221 TAS2562_TDM_CFG2_RXLEN_24B);
222 break;
223 case 32:
224 ret = snd_soc_component_update_bits(component,
225 TAS2562_TDM_CFG2,
226 TAS2562_TDM_CFG2_RXLEN_MASK,
227 TAS2562_TDM_CFG2_RXLEN_32B);
228 break;
229
230 case 0:
231
232 break;
233 default:
234 dev_err(tas2562->dev, "slot width not supported");
235 ret = -EINVAL;
236 }
237
238 if (ret < 0)
239 return ret;
240
241 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
242 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
243 tas2562->v_sense_slot);
244 if (ret < 0)
245 return ret;
246
247 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
248 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
249 tas2562->i_sense_slot);
250 if (ret < 0)
251 return ret;
252
253 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
254 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
255 tas2562->v_sense_slot);
256 if (ret < 0)
257 return ret;
258
259 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
260 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
261 tas2562->i_sense_slot);
262 if (ret < 0)
263 return ret;
264
265 return 0;
266}
267
268static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
269{
270 int ret;
271 int val;
272 int sense_en;
273
274 switch (bitwidth) {
275 case SNDRV_PCM_FORMAT_S16_LE:
276 snd_soc_component_update_bits(tas2562->component,
277 TAS2562_TDM_CFG2,
278 TAS2562_TDM_CFG2_RXWLEN_MASK,
279 TAS2562_TDM_CFG2_RXWLEN_16B);
280 break;
281 case SNDRV_PCM_FORMAT_S24_LE:
282 snd_soc_component_update_bits(tas2562->component,
283 TAS2562_TDM_CFG2,
284 TAS2562_TDM_CFG2_RXWLEN_MASK,
285 TAS2562_TDM_CFG2_RXWLEN_24B);
286 break;
287 case SNDRV_PCM_FORMAT_S32_LE:
288 snd_soc_component_update_bits(tas2562->component,
289 TAS2562_TDM_CFG2,
290 TAS2562_TDM_CFG2_RXWLEN_MASK,
291 TAS2562_TDM_CFG2_RXWLEN_32B);
292 break;
293
294 default:
295 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
296 return -EINVAL;
297 }
298
299 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
300 if (val < 0)
301 return val;
302
303 if (val & (1 << TAS2562_VSENSE_POWER_EN))
304 sense_en = 0;
305 else
306 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
307
308 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
309 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
310 if (ret < 0)
311 return ret;
312
313 if (val & (1 << TAS2562_ISENSE_POWER_EN))
314 sense_en = 0;
315 else
316 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
317
318 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
319 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
320 if (ret < 0)
321 return ret;
322
323 return 0;
324}
325
326static int tas2562_hw_params(struct snd_pcm_substream *substream,
327 struct snd_pcm_hw_params *params,
328 struct snd_soc_dai *dai)
329{
330 struct snd_soc_component *component = dai->component;
331 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
332 int ret;
333
334 ret = tas2562_set_bitwidth(tas2562, params_format(params));
335 if (ret) {
336 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
337 return ret;
338 }
339
340 ret = tas2562_set_samplerate(tas2562, params_rate(params));
341 if (ret)
342 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
343
344 return ret;
345}
346
347static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
348{
349 struct snd_soc_component *component = dai->component;
350 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
351 u8 asi_cfg_1 = 0;
352 u8 tdm_rx_start_slot = 0;
353 int ret;
354
355 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
356 case SND_SOC_DAIFMT_NB_NF:
357 asi_cfg_1 = 0;
358 break;
359 case SND_SOC_DAIFMT_IB_NF:
360 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
361 break;
362 default:
363 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
364 return -EINVAL;
365 }
366
367 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
368 TAS2562_TDM_CFG1_RX_EDGE_MASK,
369 asi_cfg_1);
370 if (ret < 0) {
371 dev_err(tas2562->dev, "Failed to set RX edge\n");
372 return ret;
373 }
374 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
375 case SND_SOC_DAIFMT_LEFT_J:
376 case SND_SOC_DAIFMT_DSP_B:
377 tdm_rx_start_slot = 0;
378 break;
379 case SND_SOC_DAIFMT_I2S:
380 case SND_SOC_DAIFMT_DSP_A:
381 tdm_rx_start_slot = 1;
382 break;
383 default:
384 dev_err(tas2562->dev,
385 "DAI Format is not found, fmt=0x%x\n", fmt);
386 return -EINVAL;
387 }
388
389 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
390 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
391 if (ret < 0)
392 return ret;
393
394 return 0;
395}
396
397static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
398{
399 struct snd_soc_component *component = dai->component;
400
401 return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
402 TAS2562_MODE_MASK,
403 mute ? TAS2562_MUTE : 0);
404}
405
406static int tas2562_codec_probe(struct snd_soc_component *component)
407{
408 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
409 int ret;
410
411 tas2562->component = component;
412
413 if (tas2562->sdz_gpio)
414 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
415
416 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
417 TAS2562_MODE_MASK, TAS2562_MUTE);
418 if (ret < 0)
419 return ret;
420
421 return 0;
422}
423
424#ifdef CONFIG_PM
425static int tas2562_suspend(struct snd_soc_component *component)
426{
427 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
428
429 regcache_cache_only(tas2562->regmap, true);
430 regcache_mark_dirty(tas2562->regmap);
431
432 if (tas2562->sdz_gpio)
433 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
434
435 return 0;
436}
437
438static int tas2562_resume(struct snd_soc_component *component)
439{
440 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
441
442 if (tas2562->sdz_gpio)
443 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
444
445 regcache_cache_only(tas2562->regmap, false);
446
447 return regcache_sync(tas2562->regmap);
448}
449#else
450#define tas2562_suspend NULL
451#define tas2562_resume NULL
452#endif
453
454static const char * const tas2562_ASI1_src[] = {
455 "I2C offset", "Left", "Right", "LeftRightDiv2",
456};
457
458static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
459 tas2562_ASI1_src);
460
461static const struct snd_kcontrol_new tas2562_asi1_mux =
462 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
463
464static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
465 struct snd_kcontrol *kcontrol, int event)
466{
467 struct snd_soc_component *component =
468 snd_soc_dapm_to_component(w->dapm);
469 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
470 int ret;
471
472 switch (event) {
473 case SND_SOC_DAPM_POST_PMU:
474 ret = snd_soc_component_update_bits(component,
475 TAS2562_PWR_CTRL,
476 TAS2562_MODE_MASK,
477 TAS2562_MUTE);
478 if (ret)
479 goto end;
480 break;
481 case SND_SOC_DAPM_PRE_PMD:
482 ret = snd_soc_component_update_bits(component,
483 TAS2562_PWR_CTRL,
484 TAS2562_MODE_MASK,
485 TAS2562_SHUTDOWN);
486 if (ret)
487 goto end;
488 break;
489 default:
490 dev_err(tas2562->dev, "Not supported evevt\n");
491 return -EINVAL;
492 }
493
494end:
495 if (ret < 0)
496 return ret;
497
498 return 0;
499}
500
501static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
502 struct snd_ctl_elem_value *ucontrol)
503{
504 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
505 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
506
507 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
508 return 0;
509}
510
511static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
512 struct snd_ctl_elem_value *ucontrol)
513{
514 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
515 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
516 int ret;
517 u32 reg_val;
518
519 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
520 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
521 (reg_val & 0xff));
522 if (ret)
523 return ret;
524 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
525 ((reg_val >> 8) & 0xff));
526 if (ret)
527 return ret;
528 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
529 ((reg_val >> 16) & 0xff));
530 if (ret)
531 return ret;
532 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
533 ((reg_val >> 24) & 0xff));
534 if (ret)
535 return ret;
536
537 tas2562->volume_lvl = ucontrol->value.integer.value[0];
538
539 return ret;
540}
541
542
543static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
544
545static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
546
547static const struct snd_kcontrol_new isense_switch =
548 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
549 1, 1);
550
551static const struct snd_kcontrol_new vsense_switch =
552 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
553 1, 1);
554
555static const struct snd_kcontrol_new tas2562_snd_controls[] = {
556 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
557 tas2562_dac_tlv),
558 {
559 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
560 .name = "Digital Volume Control",
561 .index = 0,
562 .tlv.p = dvc_tlv,
563 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
564 .info = snd_soc_info_volsw,
565 .get = tas2562_volume_control_get,
566 .put = tas2562_volume_control_put,
567 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
568 },
569};
570
571static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
572 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
573 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
574 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
575 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
576 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
577 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
578 SND_SOC_DAPM_SIGGEN("VMON"),
579 SND_SOC_DAPM_SIGGEN("IMON"),
580 SND_SOC_DAPM_OUTPUT("OUT"),
581};
582
583static const struct snd_soc_dapm_route tas2562_audio_map[] = {
584 {"ASI1 Sel", "I2C offset", "ASI1"},
585 {"ASI1 Sel", "Left", "ASI1"},
586 {"ASI1 Sel", "Right", "ASI1"},
587 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
588 { "DAC", NULL, "ASI1 Sel" },
589 { "OUT", NULL, "DAC" },
590 {"ISENSE", "Switch", "IMON"},
591 {"VSENSE", "Switch", "VMON"},
592};
593
594static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
595 .probe = tas2562_codec_probe,
596 .suspend = tas2562_suspend,
597 .resume = tas2562_resume,
598 .set_bias_level = tas2562_set_bias_level,
599 .controls = tas2562_snd_controls,
600 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
601 .dapm_widgets = tas2562_dapm_widgets,
602 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
603 .dapm_routes = tas2562_audio_map,
604 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
605 .idle_bias_on = 1,
606 .use_pmdown_time = 1,
607 .endianness = 1,
608 .non_legacy_dai_naming = 1,
609};
610
611static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
612 .hw_params = tas2562_hw_params,
613 .set_fmt = tas2562_set_dai_fmt,
614 .set_tdm_slot = tas2562_set_dai_tdm_slot,
615 .mute_stream = tas2562_mute,
616 .no_capture_mute = 1,
617};
618
619static struct snd_soc_dai_driver tas2562_dai[] = {
620 {
621 .name = "tas2562-amplifier",
622 .id = 0,
623 .playback = {
624 .stream_name = "ASI1 Playback",
625 .channels_min = 2,
626 .channels_max = 2,
627 .rates = SNDRV_PCM_RATE_8000_192000,
628 .formats = TAS2562_FORMATS,
629 },
630 .capture = {
631 .stream_name = "ASI1 Capture",
632 .channels_min = 0,
633 .channels_max = 2,
634 .rates = SNDRV_PCM_RATE_8000_192000,
635 .formats = TAS2562_FORMATS,
636 },
637 .ops = &tas2562_speaker_dai_ops,
638 },
639};
640
641static const struct regmap_range_cfg tas2562_ranges[] = {
642 {
643 .range_min = 0,
644 .range_max = 5 * 128,
645 .selector_reg = TAS2562_PAGE_CTRL,
646 .selector_mask = 0xff,
647 .selector_shift = 0,
648 .window_start = 0,
649 .window_len = 128,
650 },
651};
652
653static const struct reg_default tas2562_reg_defaults[] = {
654 { TAS2562_PAGE_CTRL, 0x00 },
655 { TAS2562_SW_RESET, 0x00 },
656 { TAS2562_PWR_CTRL, 0x0e },
657 { TAS2562_PB_CFG1, 0x20 },
658 { TAS2562_TDM_CFG0, 0x09 },
659 { TAS2562_TDM_CFG1, 0x02 },
660 { TAS2562_DVC_CFG1, 0x40 },
661 { TAS2562_DVC_CFG2, 0x40 },
662 { TAS2562_DVC_CFG3, 0x00 },
663 { TAS2562_DVC_CFG4, 0x00 },
664};
665
666static const struct regmap_config tas2562_regmap_config = {
667 .reg_bits = 8,
668 .val_bits = 8,
669
670 .max_register = 5 * 128,
671 .cache_type = REGCACHE_RBTREE,
672 .reg_defaults = tas2562_reg_defaults,
673 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
674 .ranges = tas2562_ranges,
675 .num_ranges = ARRAY_SIZE(tas2562_ranges),
676};
677
678static int tas2562_parse_dt(struct tas2562_data *tas2562)
679{
680 struct device *dev = tas2562->dev;
681 int ret = 0;
682
683 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
684 if (IS_ERR(tas2562->sdz_gpio)) {
685 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
686 return -EPROBE_DEFER;
687
688 tas2562->sdz_gpio = NULL;
689 }
690
691
692
693
694
695 if (tas2562->sdz_gpio == NULL) {
696 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
697 GPIOD_OUT_HIGH);
698 if (IS_ERR(tas2562->sdz_gpio))
699 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
700 return -EPROBE_DEFER;
701
702 tas2562->sdz_gpio = NULL;
703 }
704
705 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
706 &tas2562->i_sense_slot);
707 if (ret) {
708 dev_err(dev, "Property %s is missing setting default slot\n",
709 "ti,imon-slot-no");
710 tas2562->i_sense_slot = 0;
711 }
712
713
714 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
715 &tas2562->v_sense_slot);
716 if (ret) {
717 dev_info(dev, "Property %s is missing setting default slot\n",
718 "ti,vmon-slot-no");
719 tas2562->v_sense_slot = 2;
720 }
721
722 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
723 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
724 return -EINVAL;
725 }
726
727 return ret;
728}
729
730static int tas2562_probe(struct i2c_client *client,
731 const struct i2c_device_id *id)
732{
733 struct device *dev = &client->dev;
734 struct tas2562_data *data;
735 int ret;
736
737 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
738 if (!data)
739 return -ENOMEM;
740
741 data->client = client;
742 data->dev = &client->dev;
743
744 tas2562_parse_dt(data);
745
746 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
747 if (IS_ERR(data->regmap)) {
748 ret = PTR_ERR(data->regmap);
749 dev_err(dev, "failed to allocate register map: %d\n", ret);
750 return ret;
751 }
752
753 dev_set_drvdata(&client->dev, data);
754
755 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
756 tas2562_dai,
757 ARRAY_SIZE(tas2562_dai));
758
759}
760
761static const struct i2c_device_id tas2562_id[] = {
762 { "tas2562", TAS2562 },
763 { "tas2563", TAS2563 },
764 { }
765};
766MODULE_DEVICE_TABLE(i2c, tas2562_id);
767
768static const struct of_device_id tas2562_of_match[] = {
769 { .compatible = "ti,tas2562", },
770 { .compatible = "ti,tas2563", },
771 { },
772};
773MODULE_DEVICE_TABLE(of, tas2562_of_match);
774
775static struct i2c_driver tas2562_i2c_driver = {
776 .driver = {
777 .name = "tas2562",
778 .of_match_table = of_match_ptr(tas2562_of_match),
779 },
780 .probe = tas2562_probe,
781 .id_table = tas2562_id,
782};
783
784module_i2c_driver(tas2562_i2c_driver);
785
786MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
787MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
788MODULE_LICENSE("GPL");
789
