1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Driver for the Texas Instruments TAS2562 CODEC
4 // Copyright (C) 2019 Texas Instruments Inc.
5
6
7 #include <linux/module.h>
8 #include <linux/errno.h>
9 #include <linux/device.h>
10 #include <linux/i2c.h>
11 #include <linux/regmap.h>
12 #include <linux/slab.h>
13 #include <linux/gpio/consumer.h>
14 #include <linux/regulator/consumer.h>
15 #include <linux/delay.h>
16
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-dapm.h>
21 #include <sound/tlv.h>
22
23 #include "tas2562.h"
24
25 #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
26 SNDRV_PCM_FORMAT_S32_LE)
27
28 /* DVC equation involves floating point math
29 * round(10^(volume in dB/20)*2^30)
30 * so create a lookup table for 2dB step
31 */
32 static const unsigned int float_vol_db_lookup[] = {
33 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
34 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
35 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
36 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
37 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
38 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
39 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
40 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
41 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
42 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
43 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
44 };
45
46 struct tas2562_data {
47 struct snd_soc_component *component;
48 struct gpio_desc *sdz_gpio;
49 struct regmap *regmap;
50 struct device *dev;
51 struct i2c_client *client;
52 int v_sense_slot;
53 int i_sense_slot;
54 int volume_lvl;
55 int model_id;
56 bool dac_powered;
57 bool unmuted;
58 };
59
60 enum tas256x_model {
61 TAS2562,
62 TAS2564,
63 TAS2110,
64 };
65
tas2562_set_samplerate(struct tas2562_data * tas2562,int samplerate)66 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
67 {
68 int samp_rate;
69 int ramp_rate;
70
71 switch (samplerate) {
72 case 7350:
73 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
74 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
75 break;
76 case 8000:
77 ramp_rate = 0;
78 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
79 break;
80 case 14700:
81 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
82 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
83 break;
84 case 16000:
85 ramp_rate = 0;
86 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
87 break;
88 case 22050:
89 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
90 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
91 break;
92 case 24000:
93 ramp_rate = 0;
94 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
95 break;
96 case 29400:
97 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
98 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
99 break;
100 case 32000:
101 ramp_rate = 0;
102 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
103 break;
104 case 44100:
105 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
106 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
107 break;
108 case 48000:
109 ramp_rate = 0;
110 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
111 break;
112 case 88200:
113 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
114 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
115 break;
116 case 96000:
117 ramp_rate = 0;
118 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
119 break;
120 case 176400:
121 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
122 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
123 break;
124 case 192000:
125 ramp_rate = 0;
126 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
127 break;
128 default:
129 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
130 __func__, samplerate);
131 return -EINVAL;
132 }
133
134 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
135 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
136 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
137 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
138
139 return 0;
140 }
141
tas2562_set_dai_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)142 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
143 unsigned int tx_mask, unsigned int rx_mask,
144 int slots, int slot_width)
145 {
146 struct snd_soc_component *component = dai->component;
147 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
148 int left_slot, right_slot;
149 int slots_cfg;
150 int ret;
151
152 if (!tx_mask) {
153 dev_err(component->dev, "tx masks must not be 0\n");
154 return -EINVAL;
155 }
156
157 if (slots == 1) {
158 if (tx_mask != 1)
159 return -EINVAL;
160
161 left_slot = 0;
162 right_slot = 0;
163 } else {
164 left_slot = __ffs(tx_mask);
165 tx_mask &= ~(1 << left_slot);
166 if (tx_mask == 0) {
167 right_slot = left_slot;
168 } else {
169 right_slot = __ffs(tx_mask);
170 }
171 }
172
173 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
174
175 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
176 if (ret < 0)
177 return ret;
178
179 switch (slot_width) {
180 case 16:
181 ret = snd_soc_component_update_bits(component,
182 TAS2562_TDM_CFG2,
183 TAS2562_TDM_CFG2_RXLEN_MASK,
184 TAS2562_TDM_CFG2_RXLEN_16B);
185 break;
186 case 24:
187 ret = snd_soc_component_update_bits(component,
188 TAS2562_TDM_CFG2,
189 TAS2562_TDM_CFG2_RXLEN_MASK,
190 TAS2562_TDM_CFG2_RXLEN_24B);
191 break;
192 case 32:
193 ret = snd_soc_component_update_bits(component,
194 TAS2562_TDM_CFG2,
195 TAS2562_TDM_CFG2_RXLEN_MASK,
196 TAS2562_TDM_CFG2_RXLEN_32B);
197 break;
198
199 case 0:
200 /* Do not change slot width */
201 break;
202 default:
203 dev_err(tas2562->dev, "slot width not supported");
204 ret = -EINVAL;
205 }
206
207 if (ret < 0)
208 return ret;
209
210 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
211 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
212 tas2562->v_sense_slot);
213 if (ret < 0)
214 return ret;
215
216 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
217 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
218 tas2562->i_sense_slot);
219 if (ret < 0)
220 return ret;
221
222 return 0;
223 }
224
tas2562_set_bitwidth(struct tas2562_data * tas2562,int bitwidth)225 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
226 {
227 int ret;
228 int val;
229 int sense_en;
230
231 switch (bitwidth) {
232 case SNDRV_PCM_FORMAT_S16_LE:
233 snd_soc_component_update_bits(tas2562->component,
234 TAS2562_TDM_CFG2,
235 TAS2562_TDM_CFG2_RXWLEN_MASK,
236 TAS2562_TDM_CFG2_RXWLEN_16B);
237 break;
238 case SNDRV_PCM_FORMAT_S24_LE:
239 snd_soc_component_update_bits(tas2562->component,
240 TAS2562_TDM_CFG2,
241 TAS2562_TDM_CFG2_RXWLEN_MASK,
242 TAS2562_TDM_CFG2_RXWLEN_24B);
243 break;
244 case SNDRV_PCM_FORMAT_S32_LE:
245 snd_soc_component_update_bits(tas2562->component,
246 TAS2562_TDM_CFG2,
247 TAS2562_TDM_CFG2_RXWLEN_MASK,
248 TAS2562_TDM_CFG2_RXWLEN_32B);
249 break;
250
251 default:
252 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
253 return -EINVAL;
254 }
255
256 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
257 if (val < 0)
258 return val;
259
260 if (val & (1 << TAS2562_VSENSE_POWER_EN))
261 sense_en = 0;
262 else
263 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
264
265 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
266 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
267 if (ret < 0)
268 return ret;
269
270 if (val & (1 << TAS2562_ISENSE_POWER_EN))
271 sense_en = 0;
272 else
273 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
274
275 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
276 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
277 if (ret < 0)
278 return ret;
279
280 return 0;
281 }
282
tas2562_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)283 static int tas2562_hw_params(struct snd_pcm_substream *substream,
284 struct snd_pcm_hw_params *params,
285 struct snd_soc_dai *dai)
286 {
287 struct snd_soc_component *component = dai->component;
288 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
289 int ret;
290
291 ret = tas2562_set_bitwidth(tas2562, params_format(params));
292 if (ret) {
293 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
294 return ret;
295 }
296
297 ret = tas2562_set_samplerate(tas2562, params_rate(params));
298 if (ret)
299 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
300
301 return ret;
302 }
303
tas2562_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)304 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
305 {
306 struct snd_soc_component *component = dai->component;
307 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
308 u8 asi_cfg_1 = 0;
309 u8 tdm_rx_start_slot = 0;
310 int ret;
311
312 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
313 case SND_SOC_DAIFMT_NB_NF:
314 asi_cfg_1 = 0;
315 break;
316 case SND_SOC_DAIFMT_IB_NF:
317 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
318 break;
319 default:
320 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
321 return -EINVAL;
322 }
323
324 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
325 TAS2562_TDM_CFG1_RX_EDGE_MASK,
326 asi_cfg_1);
327 if (ret < 0) {
328 dev_err(tas2562->dev, "Failed to set RX edge\n");
329 return ret;
330 }
331 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
332 case SND_SOC_DAIFMT_LEFT_J:
333 case SND_SOC_DAIFMT_DSP_B:
334 tdm_rx_start_slot = 0;
335 break;
336 case SND_SOC_DAIFMT_I2S:
337 case SND_SOC_DAIFMT_DSP_A:
338 tdm_rx_start_slot = 1;
339 break;
340 default:
341 dev_err(tas2562->dev,
342 "DAI Format is not found, fmt=0x%x\n", fmt);
343 return -EINVAL;
344 }
345
346 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
347 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
348 if (ret < 0)
349 return ret;
350
351 return 0;
352 }
353
tas2562_update_pwr_ctrl(struct tas2562_data * tas2562)354 static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
355 {
356 struct snd_soc_component *component = tas2562->component;
357 unsigned int val;
358 int ret;
359
360 if (tas2562->dac_powered)
361 val = tas2562->unmuted ?
362 TAS2562_ACTIVE : TAS2562_MUTE;
363 else
364 val = TAS2562_SHUTDOWN;
365
366 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
367 TAS2562_MODE_MASK, val);
368 if (ret < 0)
369 return ret;
370
371 return 0;
372 }
373
tas2562_mute(struct snd_soc_dai * dai,int mute,int direction)374 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
375 {
376 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
377
378 tas2562->unmuted = !mute;
379 return tas2562_update_pwr_ctrl(tas2562);
380 }
381
tas2562_codec_probe(struct snd_soc_component * component)382 static int tas2562_codec_probe(struct snd_soc_component *component)
383 {
384 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
385
386 tas2562->component = component;
387
388 if (tas2562->sdz_gpio)
389 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
390
391 return 0;
392 }
393
394 #ifdef CONFIG_PM
tas2562_suspend(struct snd_soc_component * component)395 static int tas2562_suspend(struct snd_soc_component *component)
396 {
397 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
398
399 regcache_cache_only(tas2562->regmap, true);
400 regcache_mark_dirty(tas2562->regmap);
401
402 if (tas2562->sdz_gpio)
403 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
404
405 return 0;
406 }
407
tas2562_resume(struct snd_soc_component * component)408 static int tas2562_resume(struct snd_soc_component *component)
409 {
410 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
411
412 if (tas2562->sdz_gpio)
413 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
414
415 regcache_cache_only(tas2562->regmap, false);
416
417 return regcache_sync(tas2562->regmap);
418 }
419 #else
420 #define tas2562_suspend NULL
421 #define tas2562_resume NULL
422 #endif
423
424 static const char * const tas2562_ASI1_src[] = {
425 "I2C offset", "Left", "Right", "LeftRightDiv2",
426 };
427
428 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
429 tas2562_ASI1_src);
430
431 static const struct snd_kcontrol_new tas2562_asi1_mux =
432 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
433
tas2562_dac_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)434 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
435 struct snd_kcontrol *kcontrol, int event)
436 {
437 struct snd_soc_component *component =
438 snd_soc_dapm_to_component(w->dapm);
439 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
440 int ret = 0;
441
442 switch (event) {
443 case SND_SOC_DAPM_POST_PMU:
444 tas2562->dac_powered = true;
445 ret = tas2562_update_pwr_ctrl(tas2562);
446 break;
447 case SND_SOC_DAPM_PRE_PMD:
448 tas2562->dac_powered = false;
449 ret = tas2562_update_pwr_ctrl(tas2562);
450 break;
451 default:
452 dev_err(tas2562->dev, "Not supported evevt\n");
453 return -EINVAL;
454 }
455
456 return ret;
457 }
458
tas2562_volume_control_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)459 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
460 struct snd_ctl_elem_value *ucontrol)
461 {
462 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
463 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
464
465 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
466 return 0;
467 }
468
tas2562_volume_control_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)469 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
470 struct snd_ctl_elem_value *ucontrol)
471 {
472 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
473 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
474 int ret;
475 u32 reg_val;
476
477 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
478 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
479 (reg_val & 0xff));
480 if (ret)
481 return ret;
482 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
483 ((reg_val >> 8) & 0xff));
484 if (ret)
485 return ret;
486 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
487 ((reg_val >> 16) & 0xff));
488 if (ret)
489 return ret;
490 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
491 ((reg_val >> 24) & 0xff));
492 if (ret)
493 return ret;
494
495 tas2562->volume_lvl = ucontrol->value.integer.value[0];
496
497 return 0;
498 }
499
500 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
501 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
502
503 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
504
505 static const struct snd_kcontrol_new isense_switch =
506 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
507 1, 1);
508
509 static const struct snd_kcontrol_new vsense_switch =
510 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
511 1, 1);
512
513 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
514 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
515 tas2562_dac_tlv),
516 {
517 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
518 .name = "Digital Volume Control",
519 .index = 0,
520 .tlv.p = dvc_tlv,
521 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
522 .info = snd_soc_info_volsw,
523 .get = tas2562_volume_control_get,
524 .put = tas2562_volume_control_put,
525 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
526 },
527 };
528
529 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
530 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
531 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
532 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
533 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
534 SND_SOC_DAPM_OUTPUT("OUT"),
535 };
536
537 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
538 {"ASI1 Sel", "I2C offset", "ASI1"},
539 {"ASI1 Sel", "Left", "ASI1"},
540 {"ASI1 Sel", "Right", "ASI1"},
541 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
542 { "DAC", NULL, "ASI1 Sel" },
543 { "OUT", NULL, "DAC" },
544 };
545
546 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
547 .probe = tas2562_codec_probe,
548 .suspend = tas2562_suspend,
549 .resume = tas2562_resume,
550 .controls = tas2562_snd_controls,
551 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
552 .dapm_widgets = tas2110_dapm_widgets,
553 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
554 .dapm_routes = tas2110_audio_map,
555 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
556 .idle_bias_on = 1,
557 .use_pmdown_time = 1,
558 .endianness = 1,
559 };
560
561 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
562 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
563 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
564 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
565 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
566 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
567 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
568 SND_SOC_DAPM_SIGGEN("VMON"),
569 SND_SOC_DAPM_SIGGEN("IMON"),
570 SND_SOC_DAPM_OUTPUT("OUT"),
571 };
572
573 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
574 {"ASI1 Sel", "I2C offset", "ASI1"},
575 {"ASI1 Sel", "Left", "ASI1"},
576 {"ASI1 Sel", "Right", "ASI1"},
577 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
578 { "DAC", NULL, "ASI1 Sel" },
579 { "OUT", NULL, "DAC" },
580 {"ISENSE", "Switch", "IMON"},
581 {"VSENSE", "Switch", "VMON"},
582 };
583
584 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
585 .probe = tas2562_codec_probe,
586 .suspend = tas2562_suspend,
587 .resume = tas2562_resume,
588 .controls = tas2562_snd_controls,
589 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
590 .dapm_widgets = tas2562_dapm_widgets,
591 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
592 .dapm_routes = tas2562_audio_map,
593 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
594 .idle_bias_on = 1,
595 .use_pmdown_time = 1,
596 .endianness = 1,
597 };
598
599 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
600 .hw_params = tas2562_hw_params,
601 .set_fmt = tas2562_set_dai_fmt,
602 .set_tdm_slot = tas2562_set_dai_tdm_slot,
603 .mute_stream = tas2562_mute,
604 .no_capture_mute = 1,
605 };
606
607 static struct snd_soc_dai_driver tas2562_dai[] = {
608 {
609 .name = "tas2562-amplifier",
610 .id = 0,
611 .playback = {
612 .stream_name = "ASI1 Playback",
613 .channels_min = 2,
614 .channels_max = 2,
615 .rates = SNDRV_PCM_RATE_8000_192000,
616 .formats = TAS2562_FORMATS,
617 },
618 .capture = {
619 .stream_name = "ASI1 Capture",
620 .channels_min = 0,
621 .channels_max = 2,
622 .rates = SNDRV_PCM_RATE_8000_192000,
623 .formats = TAS2562_FORMATS,
624 },
625 .ops = &tas2562_speaker_dai_ops,
626 },
627 };
628
629 static const struct regmap_range_cfg tas2562_ranges[] = {
630 {
631 .range_min = 0,
632 .range_max = 5 * 128,
633 .selector_reg = TAS2562_PAGE_CTRL,
634 .selector_mask = 0xff,
635 .selector_shift = 0,
636 .window_start = 0,
637 .window_len = 128,
638 },
639 };
640
641 static const struct reg_default tas2562_reg_defaults[] = {
642 { TAS2562_PAGE_CTRL, 0x00 },
643 { TAS2562_SW_RESET, 0x00 },
644 { TAS2562_PWR_CTRL, 0x0e },
645 { TAS2562_PB_CFG1, 0x20 },
646 { TAS2562_TDM_CFG0, 0x09 },
647 { TAS2562_TDM_CFG1, 0x02 },
648 { TAS2562_DVC_CFG1, 0x40 },
649 { TAS2562_DVC_CFG2, 0x40 },
650 { TAS2562_DVC_CFG3, 0x00 },
651 { TAS2562_DVC_CFG4, 0x00 },
652 };
653
654 static const struct regmap_config tas2562_regmap_config = {
655 .reg_bits = 8,
656 .val_bits = 8,
657
658 .max_register = 5 * 128,
659 .cache_type = REGCACHE_RBTREE,
660 .reg_defaults = tas2562_reg_defaults,
661 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
662 .ranges = tas2562_ranges,
663 .num_ranges = ARRAY_SIZE(tas2562_ranges),
664 };
665
tas2562_parse_dt(struct tas2562_data * tas2562)666 static int tas2562_parse_dt(struct tas2562_data *tas2562)
667 {
668 struct device *dev = tas2562->dev;
669 int ret = 0;
670
671 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
672 if (IS_ERR(tas2562->sdz_gpio)) {
673 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
674 return -EPROBE_DEFER;
675
676 tas2562->sdz_gpio = NULL;
677 }
678
679 /*
680 * The shut-down property is deprecated but needs to be checked for
681 * backwards compatibility.
682 */
683 if (tas2562->sdz_gpio == NULL) {
684 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
685 GPIOD_OUT_HIGH);
686 if (IS_ERR(tas2562->sdz_gpio))
687 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
688 return -EPROBE_DEFER;
689
690 tas2562->sdz_gpio = NULL;
691 }
692
693 if (tas2562->model_id == TAS2110)
694 return ret;
695
696 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
697 &tas2562->i_sense_slot);
698 if (ret) {
699 dev_err(dev, "Property %s is missing setting default slot\n",
700 "ti,imon-slot-no");
701 tas2562->i_sense_slot = 0;
702 }
703
704
705 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
706 &tas2562->v_sense_slot);
707 if (ret) {
708 dev_info(dev, "Property %s is missing setting default slot\n",
709 "ti,vmon-slot-no");
710 tas2562->v_sense_slot = 2;
711 }
712
713 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
714 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
715 return -EINVAL;
716 }
717
718 return ret;
719 }
720
721 static const struct i2c_device_id tas2562_id[] = {
722 { "tas2562", TAS2562 },
723 { "tas2564", TAS2564 },
724 { "tas2110", TAS2110 },
725 { }
726 };
727 MODULE_DEVICE_TABLE(i2c, tas2562_id);
728
tas2562_probe(struct i2c_client * client)729 static int tas2562_probe(struct i2c_client *client)
730 {
731 struct device *dev = &client->dev;
732 struct tas2562_data *data;
733 int ret;
734 const struct i2c_device_id *id;
735
736 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
737 if (!data)
738 return -ENOMEM;
739
740 id = i2c_match_id(tas2562_id, client);
741 data->client = client;
742 data->dev = &client->dev;
743 data->model_id = id->driver_data;
744
745 tas2562_parse_dt(data);
746
747 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
748 if (IS_ERR(data->regmap)) {
749 ret = PTR_ERR(data->regmap);
750 dev_err(dev, "failed to allocate register map: %d\n", ret);
751 return ret;
752 }
753
754 dev_set_drvdata(&client->dev, data);
755
756 if (data->model_id == TAS2110)
757 return devm_snd_soc_register_component(dev,
758 &soc_component_dev_tas2110,
759 tas2562_dai,
760 ARRAY_SIZE(tas2562_dai));
761
762 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
763 tas2562_dai,
764 ARRAY_SIZE(tas2562_dai));
765
766 }
767
768 #ifdef CONFIG_OF
769 static const struct of_device_id tas2562_of_match[] = {
770 { .compatible = "ti,tas2562", },
771 { .compatible = "ti,tas2564", },
772 { .compatible = "ti,tas2110", },
773 { },
774 };
775 MODULE_DEVICE_TABLE(of, tas2562_of_match);
776 #endif
777
778 static struct i2c_driver tas2562_i2c_driver = {
779 .driver = {
780 .name = "tas2562",
781 .of_match_table = of_match_ptr(tas2562_of_match),
782 },
783 .probe = tas2562_probe,
784 .id_table = tas2562_id,
785 };
786
787 module_i2c_driver(tas2562_i2c_driver);
788
789 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
790 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
791 MODULE_LICENSE("GPL");
792