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 TAS2563,
63 TAS2564,
64 TAS2110,
65 };
66
tas2562_set_samplerate(struct tas2562_data * tas2562,int samplerate)67 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
68 {
69 int samp_rate;
70 int ramp_rate;
71
72 switch (samplerate) {
73 case 7350:
74 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
75 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
76 break;
77 case 8000:
78 ramp_rate = 0;
79 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
80 break;
81 case 14700:
82 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
83 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
84 break;
85 case 16000:
86 ramp_rate = 0;
87 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
88 break;
89 case 22050:
90 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
91 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
92 break;
93 case 24000:
94 ramp_rate = 0;
95 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
96 break;
97 case 29400:
98 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
99 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
100 break;
101 case 32000:
102 ramp_rate = 0;
103 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
104 break;
105 case 44100:
106 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
107 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
108 break;
109 case 48000:
110 ramp_rate = 0;
111 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
112 break;
113 case 88200:
114 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
115 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
116 break;
117 case 96000:
118 ramp_rate = 0;
119 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
120 break;
121 case 176400:
122 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
123 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
124 break;
125 case 192000:
126 ramp_rate = 0;
127 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
128 break;
129 default:
130 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
131 __func__, samplerate);
132 return -EINVAL;
133 }
134
135 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
136 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
137 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
138 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
139
140 return 0;
141 }
142
tas2562_set_dai_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)143 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
144 unsigned int tx_mask, unsigned int rx_mask,
145 int slots, int slot_width)
146 {
147 struct snd_soc_component *component = dai->component;
148 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
149 int left_slot, right_slot;
150 int slots_cfg;
151 int ret;
152
153 if (!tx_mask) {
154 dev_err(component->dev, "tx masks must not be 0\n");
155 return -EINVAL;
156 }
157
158 if (slots == 1) {
159 if (tx_mask != 1)
160 return -EINVAL;
161
162 left_slot = 0;
163 right_slot = 0;
164 } else {
165 left_slot = __ffs(tx_mask);
166 tx_mask &= ~(1 << left_slot);
167 if (tx_mask == 0) {
168 right_slot = left_slot;
169 } else {
170 right_slot = __ffs(tx_mask);
171 }
172 }
173
174 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
175
176 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
177 if (ret < 0)
178 return ret;
179
180 switch (slot_width) {
181 case 16:
182 ret = snd_soc_component_update_bits(component,
183 TAS2562_TDM_CFG2,
184 TAS2562_TDM_CFG2_RXLEN_MASK,
185 TAS2562_TDM_CFG2_RXLEN_16B);
186 break;
187 case 24:
188 ret = snd_soc_component_update_bits(component,
189 TAS2562_TDM_CFG2,
190 TAS2562_TDM_CFG2_RXLEN_MASK,
191 TAS2562_TDM_CFG2_RXLEN_24B);
192 break;
193 case 32:
194 ret = snd_soc_component_update_bits(component,
195 TAS2562_TDM_CFG2,
196 TAS2562_TDM_CFG2_RXLEN_MASK,
197 TAS2562_TDM_CFG2_RXLEN_32B);
198 break;
199
200 case 0:
201 /* Do not change slot width */
202 break;
203 default:
204 dev_err(tas2562->dev, "slot width not supported");
205 ret = -EINVAL;
206 }
207
208 if (ret < 0)
209 return ret;
210
211 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
212 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
213 tas2562->v_sense_slot);
214 if (ret < 0)
215 return ret;
216
217 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
218 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
219 tas2562->i_sense_slot);
220 if (ret < 0)
221 return ret;
222
223 return 0;
224 }
225
tas2562_set_bitwidth(struct tas2562_data * tas2562,int bitwidth)226 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
227 {
228 int ret;
229 int val;
230 int sense_en;
231
232 switch (bitwidth) {
233 case SNDRV_PCM_FORMAT_S16_LE:
234 snd_soc_component_update_bits(tas2562->component,
235 TAS2562_TDM_CFG2,
236 TAS2562_TDM_CFG2_RXWLEN_MASK,
237 TAS2562_TDM_CFG2_RXWLEN_16B);
238 break;
239 case SNDRV_PCM_FORMAT_S24_LE:
240 snd_soc_component_update_bits(tas2562->component,
241 TAS2562_TDM_CFG2,
242 TAS2562_TDM_CFG2_RXWLEN_MASK,
243 TAS2562_TDM_CFG2_RXWLEN_24B);
244 break;
245 case SNDRV_PCM_FORMAT_S32_LE:
246 snd_soc_component_update_bits(tas2562->component,
247 TAS2562_TDM_CFG2,
248 TAS2562_TDM_CFG2_RXWLEN_MASK,
249 TAS2562_TDM_CFG2_RXWLEN_32B);
250 break;
251
252 default:
253 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
254 return -EINVAL;
255 }
256
257 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
258 if (val < 0)
259 return val;
260
261 if (val & (1 << TAS2562_VSENSE_POWER_EN))
262 sense_en = 0;
263 else
264 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
265
266 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
267 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
268 if (ret < 0)
269 return ret;
270
271 if (val & (1 << TAS2562_ISENSE_POWER_EN))
272 sense_en = 0;
273 else
274 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
275
276 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
277 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
278 if (ret < 0)
279 return ret;
280
281 return 0;
282 }
283
tas2562_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)284 static int tas2562_hw_params(struct snd_pcm_substream *substream,
285 struct snd_pcm_hw_params *params,
286 struct snd_soc_dai *dai)
287 {
288 struct snd_soc_component *component = dai->component;
289 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
290 int ret;
291
292 ret = tas2562_set_bitwidth(tas2562, params_format(params));
293 if (ret) {
294 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
295 return ret;
296 }
297
298 ret = tas2562_set_samplerate(tas2562, params_rate(params));
299 if (ret)
300 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
301
302 return ret;
303 }
304
tas2562_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)305 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
306 {
307 struct snd_soc_component *component = dai->component;
308 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
309 u8 asi_cfg_1 = 0;
310 u8 tdm_rx_start_slot = 0;
311 int ret;
312
313 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
314 case SND_SOC_DAIFMT_NB_NF:
315 asi_cfg_1 = 0;
316 break;
317 case SND_SOC_DAIFMT_IB_NF:
318 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
319 break;
320 default:
321 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
322 return -EINVAL;
323 }
324
325 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
326 TAS2562_TDM_CFG1_RX_EDGE_MASK,
327 asi_cfg_1);
328 if (ret < 0) {
329 dev_err(tas2562->dev, "Failed to set RX edge\n");
330 return ret;
331 }
332 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
333 case SND_SOC_DAIFMT_LEFT_J:
334 case SND_SOC_DAIFMT_DSP_B:
335 tdm_rx_start_slot = 0;
336 break;
337 case SND_SOC_DAIFMT_I2S:
338 case SND_SOC_DAIFMT_DSP_A:
339 tdm_rx_start_slot = 1;
340 break;
341 default:
342 dev_err(tas2562->dev,
343 "DAI Format is not found, fmt=0x%x\n", fmt);
344 return -EINVAL;
345 }
346
347 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
348 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
349 if (ret < 0)
350 return ret;
351
352 return 0;
353 }
354
tas2562_update_pwr_ctrl(struct tas2562_data * tas2562)355 static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
356 {
357 struct snd_soc_component *component = tas2562->component;
358 unsigned int val;
359 int ret;
360
361 if (tas2562->dac_powered)
362 val = tas2562->unmuted ?
363 TAS2562_ACTIVE : TAS2562_MUTE;
364 else
365 val = TAS2562_SHUTDOWN;
366
367 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
368 TAS2562_MODE_MASK, val);
369 if (ret < 0)
370 return ret;
371
372 return 0;
373 }
374
tas2562_mute(struct snd_soc_dai * dai,int mute,int direction)375 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
376 {
377 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
378
379 tas2562->unmuted = !mute;
380 return tas2562_update_pwr_ctrl(tas2562);
381 }
382
tas2562_codec_probe(struct snd_soc_component * component)383 static int tas2562_codec_probe(struct snd_soc_component *component)
384 {
385 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
386
387 tas2562->component = component;
388
389 if (tas2562->sdz_gpio)
390 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
391
392 return 0;
393 }
394
395 #ifdef CONFIG_PM
tas2562_suspend(struct snd_soc_component * component)396 static int tas2562_suspend(struct snd_soc_component *component)
397 {
398 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
399
400 regcache_cache_only(tas2562->regmap, true);
401 regcache_mark_dirty(tas2562->regmap);
402
403 if (tas2562->sdz_gpio)
404 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
405
406 return 0;
407 }
408
tas2562_resume(struct snd_soc_component * component)409 static int tas2562_resume(struct snd_soc_component *component)
410 {
411 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
412
413 if (tas2562->sdz_gpio)
414 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
415
416 regcache_cache_only(tas2562->regmap, false);
417
418 return regcache_sync(tas2562->regmap);
419 }
420 #else
421 #define tas2562_suspend NULL
422 #define tas2562_resume NULL
423 #endif
424
425 static const char * const tas2562_ASI1_src[] = {
426 "I2C offset", "Left", "Right", "LeftRightDiv2",
427 };
428
429 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
430 tas2562_ASI1_src);
431
432 static const struct snd_kcontrol_new tas2562_asi1_mux =
433 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
434
tas2562_dac_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)435 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
436 struct snd_kcontrol *kcontrol, int event)
437 {
438 struct snd_soc_component *component =
439 snd_soc_dapm_to_component(w->dapm);
440 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
441 int ret = 0;
442
443 switch (event) {
444 case SND_SOC_DAPM_POST_PMU:
445 tas2562->dac_powered = true;
446 ret = tas2562_update_pwr_ctrl(tas2562);
447 break;
448 case SND_SOC_DAPM_PRE_PMD:
449 tas2562->dac_powered = false;
450 ret = tas2562_update_pwr_ctrl(tas2562);
451 break;
452 default:
453 dev_err(tas2562->dev, "Not supported evevt\n");
454 return -EINVAL;
455 }
456
457 return ret;
458 }
459
tas2562_volume_control_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)460 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
461 struct snd_ctl_elem_value *ucontrol)
462 {
463 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
464 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
465
466 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
467 return 0;
468 }
469
tas2562_volume_control_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)470 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
471 struct snd_ctl_elem_value *ucontrol)
472 {
473 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
474 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
475 int ret;
476 u32 reg_val;
477
478 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
479 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
480 (reg_val & 0xff));
481 if (ret)
482 return ret;
483 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
484 ((reg_val >> 8) & 0xff));
485 if (ret)
486 return ret;
487 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
488 ((reg_val >> 16) & 0xff));
489 if (ret)
490 return ret;
491 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
492 ((reg_val >> 24) & 0xff));
493 if (ret)
494 return ret;
495
496 tas2562->volume_lvl = ucontrol->value.integer.value[0];
497
498 return 0;
499 }
500
501 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
502 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
503
504 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
505
506 static const struct snd_kcontrol_new isense_switch =
507 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
508 1, 1);
509
510 static const struct snd_kcontrol_new vsense_switch =
511 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
512 1, 1);
513
514 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
515 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
516 tas2562_dac_tlv),
517 {
518 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
519 .name = "Digital Volume Control",
520 .index = 0,
521 .tlv.p = dvc_tlv,
522 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
523 .info = snd_soc_info_volsw,
524 .get = tas2562_volume_control_get,
525 .put = tas2562_volume_control_put,
526 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
527 },
528 };
529
530 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
531 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
532 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
533 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
534 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
535 SND_SOC_DAPM_OUTPUT("OUT"),
536 };
537
538 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
539 {"ASI1 Sel", "I2C offset", "ASI1"},
540 {"ASI1 Sel", "Left", "ASI1"},
541 {"ASI1 Sel", "Right", "ASI1"},
542 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
543 { "DAC", NULL, "ASI1 Sel" },
544 { "OUT", NULL, "DAC" },
545 };
546
547 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
548 .probe = tas2562_codec_probe,
549 .suspend = tas2562_suspend,
550 .resume = tas2562_resume,
551 .controls = tas2562_snd_controls,
552 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
553 .dapm_widgets = tas2110_dapm_widgets,
554 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
555 .dapm_routes = tas2110_audio_map,
556 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
557 .idle_bias_on = 1,
558 .use_pmdown_time = 1,
559 .endianness = 1,
560 };
561
562 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
563 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
564 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
565 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
566 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
567 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
568 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
569 SND_SOC_DAPM_SIGGEN("VMON"),
570 SND_SOC_DAPM_SIGGEN("IMON"),
571 SND_SOC_DAPM_OUTPUT("OUT"),
572 };
573
574 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
575 {"ASI1 Sel", "I2C offset", "ASI1"},
576 {"ASI1 Sel", "Left", "ASI1"},
577 {"ASI1 Sel", "Right", "ASI1"},
578 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
579 { "DAC", NULL, "ASI1 Sel" },
580 { "OUT", NULL, "DAC" },
581 {"ISENSE", "Switch", "IMON"},
582 {"VSENSE", "Switch", "VMON"},
583 };
584
585 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
586 .probe = tas2562_codec_probe,
587 .suspend = tas2562_suspend,
588 .resume = tas2562_resume,
589 .controls = tas2562_snd_controls,
590 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
591 .dapm_widgets = tas2562_dapm_widgets,
592 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
593 .dapm_routes = tas2562_audio_map,
594 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
595 .idle_bias_on = 1,
596 .use_pmdown_time = 1,
597 .endianness = 1,
598 };
599
600 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
601 .hw_params = tas2562_hw_params,
602 .set_fmt = tas2562_set_dai_fmt,
603 .set_tdm_slot = tas2562_set_dai_tdm_slot,
604 .mute_stream = tas2562_mute,
605 .no_capture_mute = 1,
606 };
607
608 static struct snd_soc_dai_driver tas2562_dai[] = {
609 {
610 .name = "tas2562-amplifier",
611 .id = 0,
612 .playback = {
613 .stream_name = "ASI1 Playback",
614 .channels_min = 2,
615 .channels_max = 2,
616 .rates = SNDRV_PCM_RATE_8000_192000,
617 .formats = TAS2562_FORMATS,
618 },
619 .capture = {
620 .stream_name = "ASI1 Capture",
621 .channels_min = 0,
622 .channels_max = 2,
623 .rates = SNDRV_PCM_RATE_8000_192000,
624 .formats = TAS2562_FORMATS,
625 },
626 .ops = &tas2562_speaker_dai_ops,
627 },
628 };
629
630 static const struct regmap_range_cfg tas2562_ranges[] = {
631 {
632 .range_min = 0,
633 .range_max = 5 * 128,
634 .selector_reg = TAS2562_PAGE_CTRL,
635 .selector_mask = 0xff,
636 .selector_shift = 0,
637 .window_start = 0,
638 .window_len = 128,
639 },
640 };
641
642 static const struct reg_default tas2562_reg_defaults[] = {
643 { TAS2562_PAGE_CTRL, 0x00 },
644 { TAS2562_SW_RESET, 0x00 },
645 { TAS2562_PWR_CTRL, 0x0e },
646 { TAS2562_PB_CFG1, 0x20 },
647 { TAS2562_TDM_CFG0, 0x09 },
648 { TAS2562_TDM_CFG1, 0x02 },
649 { TAS2562_DVC_CFG1, 0x40 },
650 { TAS2562_DVC_CFG2, 0x40 },
651 { TAS2562_DVC_CFG3, 0x00 },
652 { TAS2562_DVC_CFG4, 0x00 },
653 };
654
655 static const struct regmap_config tas2562_regmap_config = {
656 .reg_bits = 8,
657 .val_bits = 8,
658
659 .max_register = 5 * 128,
660 .cache_type = REGCACHE_RBTREE,
661 .reg_defaults = tas2562_reg_defaults,
662 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
663 .ranges = tas2562_ranges,
664 .num_ranges = ARRAY_SIZE(tas2562_ranges),
665 };
666
tas2562_parse_dt(struct tas2562_data * tas2562)667 static int tas2562_parse_dt(struct tas2562_data *tas2562)
668 {
669 struct device *dev = tas2562->dev;
670 int ret = 0;
671
672 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
673 if (IS_ERR(tas2562->sdz_gpio)) {
674 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
675 return -EPROBE_DEFER;
676
677 tas2562->sdz_gpio = NULL;
678 }
679
680 /*
681 * The shut-down property is deprecated but needs to be checked for
682 * backwards compatibility.
683 */
684 if (tas2562->sdz_gpio == NULL) {
685 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
686 GPIOD_OUT_HIGH);
687 if (IS_ERR(tas2562->sdz_gpio))
688 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
689 return -EPROBE_DEFER;
690
691 tas2562->sdz_gpio = NULL;
692 }
693
694 if (tas2562->model_id == TAS2110)
695 return ret;
696
697 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
698 &tas2562->i_sense_slot);
699 if (ret) {
700 dev_err(dev, "Property %s is missing setting default slot\n",
701 "ti,imon-slot-no");
702 tas2562->i_sense_slot = 0;
703 }
704
705
706 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
707 &tas2562->v_sense_slot);
708 if (ret) {
709 dev_info(dev, "Property %s is missing setting default slot\n",
710 "ti,vmon-slot-no");
711 tas2562->v_sense_slot = 2;
712 }
713
714 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
715 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
716 return -EINVAL;
717 }
718
719 return ret;
720 }
721
722 static const struct i2c_device_id tas2562_id[] = {
723 { "tas2562", TAS2562 },
724 { "tas2563", TAS2563 },
725 { "tas2564", TAS2564 },
726 { "tas2110", TAS2110 },
727 { }
728 };
729 MODULE_DEVICE_TABLE(i2c, tas2562_id);
730
tas2562_probe(struct i2c_client * client)731 static int tas2562_probe(struct i2c_client *client)
732 {
733 struct device *dev = &client->dev;
734 struct tas2562_data *data;
735 int ret;
736 const struct i2c_device_id *id;
737
738 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
739 if (!data)
740 return -ENOMEM;
741
742 id = i2c_match_id(tas2562_id, client);
743 data->client = client;
744 data->dev = &client->dev;
745 data->model_id = id->driver_data;
746
747 tas2562_parse_dt(data);
748
749 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
750 if (IS_ERR(data->regmap)) {
751 ret = PTR_ERR(data->regmap);
752 dev_err(dev, "failed to allocate register map: %d\n", ret);
753 return ret;
754 }
755
756 dev_set_drvdata(&client->dev, data);
757
758 if (data->model_id == TAS2110)
759 return devm_snd_soc_register_component(dev,
760 &soc_component_dev_tas2110,
761 tas2562_dai,
762 ARRAY_SIZE(tas2562_dai));
763
764 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
765 tas2562_dai,
766 ARRAY_SIZE(tas2562_dai));
767
768 }
769
770 #ifdef CONFIG_OF
771 static const struct of_device_id tas2562_of_match[] = {
772 { .compatible = "ti,tas2562", },
773 { .compatible = "ti,tas2563", },
774 { .compatible = "ti,tas2564", },
775 { .compatible = "ti,tas2110", },
776 { },
777 };
778 MODULE_DEVICE_TABLE(of, tas2562_of_match);
779 #endif
780
781 static struct i2c_driver tas2562_i2c_driver = {
782 .driver = {
783 .name = "tas2562",
784 .of_match_table = of_match_ptr(tas2562_of_match),
785 },
786 .probe = tas2562_probe,
787 .id_table = tas2562_id,
788 };
789
790 module_i2c_driver(tas2562_i2c_driver);
791
792 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
793 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
794 MODULE_LICENSE("GPL");
795