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/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 /* DVC equation involves floating point math
30 * round(10^(volume in dB/20)*2^30)
31 * so create a lookup table for 2dB step
32 */
33 static const unsigned int float_vol_db_lookup[] = {
34 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
35 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
36 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
37 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
38 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
39 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
40 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
41 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
42 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
43 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
44 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
45 };
46
47 struct 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 int model_id;
57 bool dac_powered;
58 bool unmuted;
59 };
60
61 enum tas256x_model {
62 TAS2562,
63 TAS2563,
64 TAS2564,
65 TAS2110,
66 };
67
tas2562_set_samplerate(struct tas2562_data * tas2562,int samplerate)68 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
69 {
70 int samp_rate;
71 int ramp_rate;
72
73 switch (samplerate) {
74 case 7350:
75 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
76 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
77 break;
78 case 8000:
79 ramp_rate = 0;
80 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
81 break;
82 case 14700:
83 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
84 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
85 break;
86 case 16000:
87 ramp_rate = 0;
88 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
89 break;
90 case 22050:
91 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
92 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
93 break;
94 case 24000:
95 ramp_rate = 0;
96 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
97 break;
98 case 29400:
99 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
100 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
101 break;
102 case 32000:
103 ramp_rate = 0;
104 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
105 break;
106 case 44100:
107 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
108 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
109 break;
110 case 48000:
111 ramp_rate = 0;
112 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
113 break;
114 case 88200:
115 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
116 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
117 break;
118 case 96000:
119 ramp_rate = 0;
120 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
121 break;
122 case 176400:
123 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
124 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
125 break;
126 case 192000:
127 ramp_rate = 0;
128 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
129 break;
130 default:
131 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
132 __func__, samplerate);
133 return -EINVAL;
134 }
135
136 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
137 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
138 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
139 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
140
141 return 0;
142 }
143
tas2562_set_dai_tdm_slot(struct snd_soc_dai * dai,unsigned int tx_mask,unsigned int rx_mask,int slots,int slot_width)144 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
145 unsigned int tx_mask, unsigned int rx_mask,
146 int slots, int slot_width)
147 {
148 struct snd_soc_component *component = dai->component;
149 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
150 int left_slot, right_slot;
151 int slots_cfg;
152 int ret;
153
154 if (!tx_mask) {
155 dev_err(component->dev, "tx masks must not be 0\n");
156 return -EINVAL;
157 }
158
159 if (slots == 1) {
160 if (tx_mask != 1)
161 return -EINVAL;
162
163 left_slot = 0;
164 right_slot = 0;
165 } else {
166 left_slot = __ffs(tx_mask);
167 tx_mask &= ~(1 << left_slot);
168 if (tx_mask == 0) {
169 right_slot = left_slot;
170 } else {
171 right_slot = __ffs(tx_mask);
172 }
173 }
174
175 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
176
177 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
178 if (ret < 0)
179 return ret;
180
181 switch (slot_width) {
182 case 16:
183 ret = snd_soc_component_update_bits(component,
184 TAS2562_TDM_CFG2,
185 TAS2562_TDM_CFG2_RXLEN_MASK,
186 TAS2562_TDM_CFG2_RXLEN_16B);
187 break;
188 case 24:
189 ret = snd_soc_component_update_bits(component,
190 TAS2562_TDM_CFG2,
191 TAS2562_TDM_CFG2_RXLEN_MASK,
192 TAS2562_TDM_CFG2_RXLEN_24B);
193 break;
194 case 32:
195 ret = snd_soc_component_update_bits(component,
196 TAS2562_TDM_CFG2,
197 TAS2562_TDM_CFG2_RXLEN_MASK,
198 TAS2562_TDM_CFG2_RXLEN_32B);
199 break;
200
201 case 0:
202 /* Do not change slot width */
203 break;
204 default:
205 dev_err(tas2562->dev, "slot width not supported");
206 ret = -EINVAL;
207 }
208
209 if (ret < 0)
210 return ret;
211
212 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
213 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
214 tas2562->v_sense_slot);
215 if (ret < 0)
216 return ret;
217
218 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
219 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
220 tas2562->i_sense_slot);
221 if (ret < 0)
222 return ret;
223
224 return 0;
225 }
226
tas2562_set_bitwidth(struct tas2562_data * tas2562,int bitwidth)227 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
228 {
229 int ret;
230 int val;
231 int sense_en;
232
233 switch (bitwidth) {
234 case SNDRV_PCM_FORMAT_S16_LE:
235 snd_soc_component_update_bits(tas2562->component,
236 TAS2562_TDM_CFG2,
237 TAS2562_TDM_CFG2_RXWLEN_MASK,
238 TAS2562_TDM_CFG2_RXWLEN_16B);
239 break;
240 case SNDRV_PCM_FORMAT_S24_LE:
241 snd_soc_component_update_bits(tas2562->component,
242 TAS2562_TDM_CFG2,
243 TAS2562_TDM_CFG2_RXWLEN_MASK,
244 TAS2562_TDM_CFG2_RXWLEN_24B);
245 break;
246 case SNDRV_PCM_FORMAT_S32_LE:
247 snd_soc_component_update_bits(tas2562->component,
248 TAS2562_TDM_CFG2,
249 TAS2562_TDM_CFG2_RXWLEN_MASK,
250 TAS2562_TDM_CFG2_RXWLEN_32B);
251 break;
252
253 default:
254 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
255 return -EINVAL;
256 }
257
258 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
259 if (val < 0)
260 return val;
261
262 if (val & (1 << TAS2562_VSENSE_POWER_EN))
263 sense_en = 0;
264 else
265 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
266
267 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
268 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
269 if (ret < 0)
270 return ret;
271
272 if (val & (1 << TAS2562_ISENSE_POWER_EN))
273 sense_en = 0;
274 else
275 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
276
277 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
278 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
279 if (ret < 0)
280 return ret;
281
282 return 0;
283 }
284
tas2562_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)285 static int tas2562_hw_params(struct snd_pcm_substream *substream,
286 struct snd_pcm_hw_params *params,
287 struct snd_soc_dai *dai)
288 {
289 struct snd_soc_component *component = dai->component;
290 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
291 int ret;
292
293 ret = tas2562_set_bitwidth(tas2562, params_format(params));
294 if (ret) {
295 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
296 return ret;
297 }
298
299 ret = tas2562_set_samplerate(tas2562, params_rate(params));
300 if (ret)
301 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
302
303 return ret;
304 }
305
tas2562_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)306 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
307 {
308 struct snd_soc_component *component = dai->component;
309 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
310 u8 asi_cfg_1 = 0;
311 u8 tdm_rx_start_slot = 0;
312 int ret;
313
314 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
315 case SND_SOC_DAIFMT_NB_NF:
316 asi_cfg_1 = 0;
317 break;
318 case SND_SOC_DAIFMT_IB_NF:
319 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
320 break;
321 default:
322 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
323 return -EINVAL;
324 }
325
326 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
327 TAS2562_TDM_CFG1_RX_EDGE_MASK,
328 asi_cfg_1);
329 if (ret < 0) {
330 dev_err(tas2562->dev, "Failed to set RX edge\n");
331 return ret;
332 }
333 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
334 case SND_SOC_DAIFMT_LEFT_J:
335 case SND_SOC_DAIFMT_DSP_B:
336 tdm_rx_start_slot = 0;
337 break;
338 case SND_SOC_DAIFMT_I2S:
339 case SND_SOC_DAIFMT_DSP_A:
340 tdm_rx_start_slot = 1;
341 break;
342 default:
343 dev_err(tas2562->dev,
344 "DAI Format is not found, fmt=0x%x\n", fmt);
345 return -EINVAL;
346 }
347
348 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
349 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
350 if (ret < 0)
351 return ret;
352
353 return 0;
354 }
355
tas2562_update_pwr_ctrl(struct tas2562_data * tas2562)356 static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
357 {
358 struct snd_soc_component *component = tas2562->component;
359 unsigned int val;
360 int ret;
361
362 if (tas2562->dac_powered)
363 val = tas2562->unmuted ?
364 TAS2562_ACTIVE : TAS2562_MUTE;
365 else
366 val = TAS2562_SHUTDOWN;
367
368 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
369 TAS2562_MODE_MASK, val);
370 if (ret < 0)
371 return ret;
372
373 return 0;
374 }
375
tas2562_mute(struct snd_soc_dai * dai,int mute,int direction)376 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
377 {
378 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
379
380 tas2562->unmuted = !mute;
381 return tas2562_update_pwr_ctrl(tas2562);
382 }
383
tas2562_codec_probe(struct snd_soc_component * component)384 static int tas2562_codec_probe(struct snd_soc_component *component)
385 {
386 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
387
388 tas2562->component = component;
389
390 if (tas2562->sdz_gpio)
391 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
392
393 return 0;
394 }
395
396 #ifdef CONFIG_PM
tas2562_suspend(struct snd_soc_component * component)397 static int tas2562_suspend(struct snd_soc_component *component)
398 {
399 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
400
401 regcache_cache_only(tas2562->regmap, true);
402 regcache_mark_dirty(tas2562->regmap);
403
404 if (tas2562->sdz_gpio)
405 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
406
407 return 0;
408 }
409
tas2562_resume(struct snd_soc_component * component)410 static int tas2562_resume(struct snd_soc_component *component)
411 {
412 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
413
414 if (tas2562->sdz_gpio)
415 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
416
417 regcache_cache_only(tas2562->regmap, false);
418
419 return regcache_sync(tas2562->regmap);
420 }
421 #else
422 #define tas2562_suspend NULL
423 #define tas2562_resume NULL
424 #endif
425
426 static const char * const tas2562_ASI1_src[] = {
427 "I2C offset", "Left", "Right", "LeftRightDiv2",
428 };
429
430 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
431 tas2562_ASI1_src);
432
433 static const struct snd_kcontrol_new tas2562_asi1_mux =
434 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
435
tas2562_dac_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)436 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
437 struct snd_kcontrol *kcontrol, int event)
438 {
439 struct snd_soc_component *component =
440 snd_soc_dapm_to_component(w->dapm);
441 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
442 int ret = 0;
443
444 switch (event) {
445 case SND_SOC_DAPM_POST_PMU:
446 tas2562->dac_powered = true;
447 ret = tas2562_update_pwr_ctrl(tas2562);
448 break;
449 case SND_SOC_DAPM_PRE_PMD:
450 tas2562->dac_powered = false;
451 ret = tas2562_update_pwr_ctrl(tas2562);
452 break;
453 default:
454 dev_err(tas2562->dev, "Not supported evevt\n");
455 return -EINVAL;
456 }
457
458 return ret;
459 }
460
tas2562_volume_control_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)461 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
462 struct snd_ctl_elem_value *ucontrol)
463 {
464 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
465 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
466
467 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
468 return 0;
469 }
470
tas2562_volume_control_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)471 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
472 struct snd_ctl_elem_value *ucontrol)
473 {
474 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
475 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
476 int ret;
477 u32 reg_val;
478
479 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
480 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
481 (reg_val & 0xff));
482 if (ret)
483 return ret;
484 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
485 ((reg_val >> 8) & 0xff));
486 if (ret)
487 return ret;
488 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
489 ((reg_val >> 16) & 0xff));
490 if (ret)
491 return ret;
492 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
493 ((reg_val >> 24) & 0xff));
494 if (ret)
495 return ret;
496
497 tas2562->volume_lvl = ucontrol->value.integer.value[0];
498
499 return 0;
500 }
501
502 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
503 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
504
505 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
506
507 static const struct snd_kcontrol_new isense_switch =
508 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
509 1, 1);
510
511 static const struct snd_kcontrol_new vsense_switch =
512 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
513 1, 1);
514
515 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
516 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
517 tas2562_dac_tlv),
518 {
519 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
520 .name = "Digital Volume Control",
521 .index = 0,
522 .tlv.p = dvc_tlv,
523 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
524 .info = snd_soc_info_volsw,
525 .get = tas2562_volume_control_get,
526 .put = tas2562_volume_control_put,
527 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
528 },
529 };
530
531 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
532 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
533 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
534 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
535 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
536 SND_SOC_DAPM_OUTPUT("OUT"),
537 };
538
539 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
540 {"ASI1 Sel", "I2C offset", "ASI1"},
541 {"ASI1 Sel", "Left", "ASI1"},
542 {"ASI1 Sel", "Right", "ASI1"},
543 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
544 { "DAC", NULL, "ASI1 Sel" },
545 { "OUT", NULL, "DAC" },
546 };
547
548 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
549 .probe = tas2562_codec_probe,
550 .suspend = tas2562_suspend,
551 .resume = tas2562_resume,
552 .controls = tas2562_snd_controls,
553 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
554 .dapm_widgets = tas2110_dapm_widgets,
555 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
556 .dapm_routes = tas2110_audio_map,
557 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
558 .idle_bias_on = 1,
559 .use_pmdown_time = 1,
560 .endianness = 1,
561 };
562
563 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
564 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
565 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
566 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
567 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
568 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
569 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
570 SND_SOC_DAPM_SIGGEN("VMON"),
571 SND_SOC_DAPM_SIGGEN("IMON"),
572 SND_SOC_DAPM_OUTPUT("OUT"),
573 };
574
575 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
576 {"ASI1 Sel", "I2C offset", "ASI1"},
577 {"ASI1 Sel", "Left", "ASI1"},
578 {"ASI1 Sel", "Right", "ASI1"},
579 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
580 { "DAC", NULL, "ASI1 Sel" },
581 { "OUT", NULL, "DAC" },
582 {"ISENSE", "Switch", "IMON"},
583 {"VSENSE", "Switch", "VMON"},
584 };
585
586 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
587 .probe = tas2562_codec_probe,
588 .suspend = tas2562_suspend,
589 .resume = tas2562_resume,
590 .controls = tas2562_snd_controls,
591 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
592 .dapm_widgets = tas2562_dapm_widgets,
593 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
594 .dapm_routes = tas2562_audio_map,
595 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
596 .idle_bias_on = 1,
597 .use_pmdown_time = 1,
598 .endianness = 1,
599 };
600
601 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
602 .hw_params = tas2562_hw_params,
603 .set_fmt = tas2562_set_dai_fmt,
604 .set_tdm_slot = tas2562_set_dai_tdm_slot,
605 .mute_stream = tas2562_mute,
606 .no_capture_mute = 1,
607 };
608
609 static struct snd_soc_dai_driver tas2562_dai[] = {
610 {
611 .name = "tas2562-amplifier",
612 .id = 0,
613 .playback = {
614 .stream_name = "ASI1 Playback",
615 .channels_min = 2,
616 .channels_max = 2,
617 .rates = SNDRV_PCM_RATE_8000_192000,
618 .formats = TAS2562_FORMATS,
619 },
620 .capture = {
621 .stream_name = "ASI1 Capture",
622 .channels_min = 0,
623 .channels_max = 2,
624 .rates = SNDRV_PCM_RATE_8000_192000,
625 .formats = TAS2562_FORMATS,
626 },
627 .ops = &tas2562_speaker_dai_ops,
628 },
629 };
630
631 static const struct regmap_range_cfg tas2562_ranges[] = {
632 {
633 .range_min = 0,
634 .range_max = 5 * 128,
635 .selector_reg = TAS2562_PAGE_CTRL,
636 .selector_mask = 0xff,
637 .selector_shift = 0,
638 .window_start = 0,
639 .window_len = 128,
640 },
641 };
642
643 static const struct reg_default tas2562_reg_defaults[] = {
644 { TAS2562_PAGE_CTRL, 0x00 },
645 { TAS2562_SW_RESET, 0x00 },
646 { TAS2562_PWR_CTRL, 0x0e },
647 { TAS2562_PB_CFG1, 0x20 },
648 { TAS2562_TDM_CFG0, 0x09 },
649 { TAS2562_TDM_CFG1, 0x02 },
650 { TAS2562_DVC_CFG1, 0x40 },
651 { TAS2562_DVC_CFG2, 0x40 },
652 { TAS2562_DVC_CFG3, 0x00 },
653 { TAS2562_DVC_CFG4, 0x00 },
654 };
655
656 static const struct regmap_config tas2562_regmap_config = {
657 .reg_bits = 8,
658 .val_bits = 8,
659
660 .max_register = 5 * 128,
661 .cache_type = REGCACHE_RBTREE,
662 .reg_defaults = tas2562_reg_defaults,
663 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
664 .ranges = tas2562_ranges,
665 .num_ranges = ARRAY_SIZE(tas2562_ranges),
666 };
667
tas2562_parse_dt(struct tas2562_data * tas2562)668 static int tas2562_parse_dt(struct tas2562_data *tas2562)
669 {
670 struct device *dev = tas2562->dev;
671 int ret = 0;
672
673 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
674 if (IS_ERR(tas2562->sdz_gpio)) {
675 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
676 return -EPROBE_DEFER;
677
678 tas2562->sdz_gpio = NULL;
679 }
680
681 /*
682 * The shut-down property is deprecated but needs to be checked for
683 * backwards compatibility.
684 */
685 if (tas2562->sdz_gpio == NULL) {
686 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
687 GPIOD_OUT_HIGH);
688 if (IS_ERR(tas2562->sdz_gpio))
689 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
690 return -EPROBE_DEFER;
691
692 tas2562->sdz_gpio = NULL;
693 }
694
695 if (tas2562->model_id == TAS2110)
696 return ret;
697
698 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
699 &tas2562->i_sense_slot);
700 if (ret) {
701 dev_err(dev, "Property %s is missing setting default slot\n",
702 "ti,imon-slot-no");
703 tas2562->i_sense_slot = 0;
704 }
705
706
707 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
708 &tas2562->v_sense_slot);
709 if (ret) {
710 dev_info(dev, "Property %s is missing setting default slot\n",
711 "ti,vmon-slot-no");
712 tas2562->v_sense_slot = 2;
713 }
714
715 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
716 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
717 return -EINVAL;
718 }
719
720 return ret;
721 }
722
723 static const struct i2c_device_id tas2562_id[] = {
724 { "tas2562", TAS2562 },
725 { "tas2563", TAS2563 },
726 { "tas2564", TAS2564 },
727 { "tas2110", TAS2110 },
728 { }
729 };
730 MODULE_DEVICE_TABLE(i2c, tas2562_id);
731
tas2562_probe(struct i2c_client * client)732 static int tas2562_probe(struct i2c_client *client)
733 {
734 struct device *dev = &client->dev;
735 struct tas2562_data *data;
736 int ret;
737 const struct i2c_device_id *id;
738
739 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
740 if (!data)
741 return -ENOMEM;
742
743 id = i2c_match_id(tas2562_id, client);
744 data->client = client;
745 data->dev = &client->dev;
746 data->model_id = id->driver_data;
747
748 tas2562_parse_dt(data);
749
750 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
751 if (IS_ERR(data->regmap)) {
752 ret = PTR_ERR(data->regmap);
753 dev_err(dev, "failed to allocate register map: %d\n", ret);
754 return ret;
755 }
756
757 dev_set_drvdata(&client->dev, data);
758
759 if (data->model_id == TAS2110)
760 return devm_snd_soc_register_component(dev,
761 &soc_component_dev_tas2110,
762 tas2562_dai,
763 ARRAY_SIZE(tas2562_dai));
764
765 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
766 tas2562_dai,
767 ARRAY_SIZE(tas2562_dai));
768
769 }
770
771 #ifdef CONFIG_OF
772 static const struct of_device_id tas2562_of_match[] = {
773 { .compatible = "ti,tas2562", },
774 { .compatible = "ti,tas2563", },
775 { .compatible = "ti,tas2564", },
776 { .compatible = "ti,tas2110", },
777 { },
778 };
779 MODULE_DEVICE_TABLE(of, tas2562_of_match);
780 #endif
781
782 static struct i2c_driver tas2562_i2c_driver = {
783 .driver = {
784 .name = "tas2562",
785 .of_match_table = of_match_ptr(tas2562_of_match),
786 },
787 .probe_new = tas2562_probe,
788 .id_table = tas2562_id,
789 };
790
791 module_i2c_driver(tas2562_i2c_driver);
792
793 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
794 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
795 MODULE_LICENSE("GPL");
796