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7#include <linux/clk.h>
8#include <linux/module.h>
9#include <linux/of.h>
10#include <linux/regmap.h>
11#include <linux/reset.h>
12#include <sound/pcm.h>
13#include <sound/soc.h>
14
15#define DRV_NAME "evea"
16#define EVEA_RATES SNDRV_PCM_RATE_48000
17#define EVEA_FORMATS SNDRV_PCM_FMTBIT_S32_LE
18
19#define AADCPOW(n) (0x0078 + 0x04 * (n))
20#define AADCPOW_AADC_POWD BIT(0)
21#define ALINSW1 0x0088
22#define ALINSW1_SEL1_SHIFT 3
23#define AHPOUTPOW 0x0098
24#define AHPOUTPOW_HP_ON BIT(4)
25#define ALINEPOW 0x009c
26#define ALINEPOW_LIN2_POWD BIT(3)
27#define ALINEPOW_LIN1_POWD BIT(4)
28#define ALO1OUTPOW 0x00a8
29#define ALO1OUTPOW_LO1_ON BIT(4)
30#define ALO2OUTPOW 0x00ac
31#define ALO2OUTPOW_ADAC2_MUTE BIT(0)
32#define ALO2OUTPOW_LO2_ON BIT(4)
33#define AANAPOW 0x00b8
34#define AANAPOW_A_POWD BIT(4)
35#define ADACSEQ1(n) (0x0144 + 0x40 * (n))
36#define ADACSEQ1_MMUTE BIT(1)
37#define ADACSEQ2(n) (0x0160 + 0x40 * (n))
38#define ADACSEQ2_ADACIN_FIX BIT(0)
39#define ADAC1ODC 0x0200
40#define ADAC1ODC_HP_DIS_RES_MASK GENMASK(2, 1)
41#define ADAC1ODC_HP_DIS_RES_OFF (0x0 << 1)
42#define ADAC1ODC_HP_DIS_RES_ON (0x3 << 1)
43#define ADAC1ODC_ADAC_RAMPCLT_MASK GENMASK(8, 7)
44#define ADAC1ODC_ADAC_RAMPCLT_NORMAL (0x0 << 7)
45#define ADAC1ODC_ADAC_RAMPCLT_REDUCE (0x1 << 7)
46
47struct evea_priv {
48 struct clk *clk, *clk_exiv;
49 struct reset_control *rst, *rst_exiv, *rst_adamv;
50 struct regmap *regmap;
51
52 int switch_lin;
53 int switch_lo;
54 int switch_hp;
55};
56
57static const char * const linsw1_sel1_text[] = {
58 "LIN1", "LIN2", "LIN3"
59};
60
61static SOC_ENUM_SINGLE_DECL(linsw1_sel1_enum,
62 ALINSW1, ALINSW1_SEL1_SHIFT,
63 linsw1_sel1_text);
64
65static const struct snd_kcontrol_new linesw1_mux[] = {
66 SOC_DAPM_ENUM("Line In 1 Source", linsw1_sel1_enum),
67};
68
69static const struct snd_soc_dapm_widget evea_widgets[] = {
70 SND_SOC_DAPM_ADC("ADC", NULL, SND_SOC_NOPM, 0, 0),
71 SND_SOC_DAPM_MUX("Line In 1 Mux", SND_SOC_NOPM, 0, 0, linesw1_mux),
72 SND_SOC_DAPM_INPUT("LIN1_LP"),
73 SND_SOC_DAPM_INPUT("LIN1_RP"),
74 SND_SOC_DAPM_INPUT("LIN2_LP"),
75 SND_SOC_DAPM_INPUT("LIN2_RP"),
76 SND_SOC_DAPM_INPUT("LIN3_LP"),
77 SND_SOC_DAPM_INPUT("LIN3_RP"),
78
79 SND_SOC_DAPM_DAC("DAC HP", NULL, SND_SOC_NOPM, 0, 0),
80 SND_SOC_DAPM_DAC("DAC LO1", NULL, SND_SOC_NOPM, 0, 0),
81 SND_SOC_DAPM_DAC("DAC LO2", NULL, SND_SOC_NOPM, 0, 0),
82 SND_SOC_DAPM_OUTPUT("HP1_L"),
83 SND_SOC_DAPM_OUTPUT("HP1_R"),
84 SND_SOC_DAPM_OUTPUT("LO2_L"),
85 SND_SOC_DAPM_OUTPUT("LO2_R"),
86};
87
88static const struct snd_soc_dapm_route evea_routes[] = {
89 { "Line In 1", NULL, "ADC" },
90 { "ADC", NULL, "Line In 1 Mux" },
91 { "Line In 1 Mux", "LIN1", "LIN1_LP" },
92 { "Line In 1 Mux", "LIN1", "LIN1_RP" },
93 { "Line In 1 Mux", "LIN2", "LIN2_LP" },
94 { "Line In 1 Mux", "LIN2", "LIN2_RP" },
95 { "Line In 1 Mux", "LIN3", "LIN3_LP" },
96 { "Line In 1 Mux", "LIN3", "LIN3_RP" },
97
98 { "DAC HP", NULL, "Headphone 1" },
99 { "DAC LO1", NULL, "Line Out 1" },
100 { "DAC LO2", NULL, "Line Out 2" },
101 { "HP1_L", NULL, "DAC HP" },
102 { "HP1_R", NULL, "DAC HP" },
103 { "LO2_L", NULL, "DAC LO2" },
104 { "LO2_R", NULL, "DAC LO2" },
105};
106
107static void evea_set_power_state_on(struct evea_priv *evea)
108{
109 struct regmap *map = evea->regmap;
110
111 regmap_update_bits(map, AANAPOW, AANAPOW_A_POWD,
112 AANAPOW_A_POWD);
113
114 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
115 ADAC1ODC_HP_DIS_RES_ON);
116
117 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_ADAC_RAMPCLT_MASK,
118 ADAC1ODC_ADAC_RAMPCLT_REDUCE);
119
120 regmap_update_bits(map, ADACSEQ2(0), ADACSEQ2_ADACIN_FIX, 0);
121 regmap_update_bits(map, ADACSEQ2(1), ADACSEQ2_ADACIN_FIX, 0);
122 regmap_update_bits(map, ADACSEQ2(2), ADACSEQ2_ADACIN_FIX, 0);
123}
124
125static void evea_set_power_state_off(struct evea_priv *evea)
126{
127 struct regmap *map = evea->regmap;
128
129 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
130 ADAC1ODC_HP_DIS_RES_ON);
131
132 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
133 ADACSEQ1_MMUTE);
134 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
135 ADACSEQ1_MMUTE);
136 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
137 ADACSEQ1_MMUTE);
138
139 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
140 regmap_update_bits(map, ALO2OUTPOW, ALO2OUTPOW_LO2_ON, 0);
141 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
142}
143
144static int evea_update_switch_lin(struct evea_priv *evea)
145{
146 struct regmap *map = evea->regmap;
147
148 if (evea->switch_lin) {
149 regmap_update_bits(map, ALINEPOW,
150 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD,
151 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD);
152
153 regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD,
154 AADCPOW_AADC_POWD);
155 regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD,
156 AADCPOW_AADC_POWD);
157 } else {
158 regmap_update_bits(map, AADCPOW(0), AADCPOW_AADC_POWD, 0);
159 regmap_update_bits(map, AADCPOW(1), AADCPOW_AADC_POWD, 0);
160
161 regmap_update_bits(map, ALINEPOW,
162 ALINEPOW_LIN2_POWD | ALINEPOW_LIN1_POWD, 0);
163 }
164
165 return 0;
166}
167
168static int evea_update_switch_lo(struct evea_priv *evea)
169{
170 struct regmap *map = evea->regmap;
171
172 if (evea->switch_lo) {
173 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE, 0);
174 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE, 0);
175
176 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON,
177 ALO1OUTPOW_LO1_ON);
178 regmap_update_bits(map, ALO2OUTPOW,
179 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
180 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON);
181 } else {
182 regmap_update_bits(map, ADACSEQ1(0), ADACSEQ1_MMUTE,
183 ADACSEQ1_MMUTE);
184 regmap_update_bits(map, ADACSEQ1(2), ADACSEQ1_MMUTE,
185 ADACSEQ1_MMUTE);
186
187 regmap_update_bits(map, ALO1OUTPOW, ALO1OUTPOW_LO1_ON, 0);
188 regmap_update_bits(map, ALO2OUTPOW,
189 ALO2OUTPOW_ADAC2_MUTE | ALO2OUTPOW_LO2_ON,
190 0);
191 }
192
193 return 0;
194}
195
196static int evea_update_switch_hp(struct evea_priv *evea)
197{
198 struct regmap *map = evea->regmap;
199
200 if (evea->switch_hp) {
201 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE, 0);
202
203 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON,
204 AHPOUTPOW_HP_ON);
205
206 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
207 ADAC1ODC_HP_DIS_RES_OFF);
208 } else {
209 regmap_update_bits(map, ADAC1ODC, ADAC1ODC_HP_DIS_RES_MASK,
210 ADAC1ODC_HP_DIS_RES_ON);
211
212 regmap_update_bits(map, ADACSEQ1(1), ADACSEQ1_MMUTE,
213 ADACSEQ1_MMUTE);
214
215 regmap_update_bits(map, AHPOUTPOW, AHPOUTPOW_HP_ON, 0);
216 }
217
218 return 0;
219}
220
221static void evea_update_switch_all(struct evea_priv *evea)
222{
223 evea_update_switch_lin(evea);
224 evea_update_switch_lo(evea);
225 evea_update_switch_hp(evea);
226}
227
228static int evea_get_switch_lin(struct snd_kcontrol *kcontrol,
229 struct snd_ctl_elem_value *ucontrol)
230{
231 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
232 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
233
234 ucontrol->value.integer.value[0] = evea->switch_lin;
235
236 return 0;
237}
238
239static int evea_set_switch_lin(struct snd_kcontrol *kcontrol,
240 struct snd_ctl_elem_value *ucontrol)
241{
242 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
243 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
244
245 if (evea->switch_lin == ucontrol->value.integer.value[0])
246 return 0;
247
248 evea->switch_lin = ucontrol->value.integer.value[0];
249
250 return evea_update_switch_lin(evea);
251}
252
253static int evea_get_switch_lo(struct snd_kcontrol *kcontrol,
254 struct snd_ctl_elem_value *ucontrol)
255{
256 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
257 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
258
259 ucontrol->value.integer.value[0] = evea->switch_lo;
260
261 return 0;
262}
263
264static int evea_set_switch_lo(struct snd_kcontrol *kcontrol,
265 struct snd_ctl_elem_value *ucontrol)
266{
267 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
268 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
269
270 if (evea->switch_lo == ucontrol->value.integer.value[0])
271 return 0;
272
273 evea->switch_lo = ucontrol->value.integer.value[0];
274
275 return evea_update_switch_lo(evea);
276}
277
278static int evea_get_switch_hp(struct snd_kcontrol *kcontrol,
279 struct snd_ctl_elem_value *ucontrol)
280{
281 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
282 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
283
284 ucontrol->value.integer.value[0] = evea->switch_hp;
285
286 return 0;
287}
288
289static int evea_set_switch_hp(struct snd_kcontrol *kcontrol,
290 struct snd_ctl_elem_value *ucontrol)
291{
292 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
293 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
294
295 if (evea->switch_hp == ucontrol->value.integer.value[0])
296 return 0;
297
298 evea->switch_hp = ucontrol->value.integer.value[0];
299
300 return evea_update_switch_hp(evea);
301}
302
303static const struct snd_kcontrol_new evea_controls[] = {
304 SOC_SINGLE_BOOL_EXT("Line Capture Switch", 0,
305 evea_get_switch_lin, evea_set_switch_lin),
306 SOC_SINGLE_BOOL_EXT("Line Playback Switch", 0,
307 evea_get_switch_lo, evea_set_switch_lo),
308 SOC_SINGLE_BOOL_EXT("Headphone Playback Switch", 0,
309 evea_get_switch_hp, evea_set_switch_hp),
310};
311
312static int evea_codec_probe(struct snd_soc_component *component)
313{
314 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
315
316 evea->switch_lin = 1;
317 evea->switch_lo = 1;
318 evea->switch_hp = 1;
319
320 evea_set_power_state_on(evea);
321 evea_update_switch_all(evea);
322
323 return 0;
324}
325
326static int evea_codec_suspend(struct snd_soc_component *component)
327{
328 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
329
330 evea_set_power_state_off(evea);
331
332 reset_control_assert(evea->rst_adamv);
333 reset_control_assert(evea->rst_exiv);
334 reset_control_assert(evea->rst);
335
336 clk_disable_unprepare(evea->clk_exiv);
337 clk_disable_unprepare(evea->clk);
338
339 return 0;
340}
341
342static int evea_codec_resume(struct snd_soc_component *component)
343{
344 struct evea_priv *evea = snd_soc_component_get_drvdata(component);
345 int ret;
346
347 ret = clk_prepare_enable(evea->clk);
348 if (ret)
349 return ret;
350
351 ret = clk_prepare_enable(evea->clk_exiv);
352 if (ret)
353 goto err_out_clock;
354
355 ret = reset_control_deassert(evea->rst);
356 if (ret)
357 goto err_out_clock_exiv;
358
359 ret = reset_control_deassert(evea->rst_exiv);
360 if (ret)
361 goto err_out_reset;
362
363 ret = reset_control_deassert(evea->rst_adamv);
364 if (ret)
365 goto err_out_reset_exiv;
366
367 evea_set_power_state_on(evea);
368 evea_update_switch_all(evea);
369
370 return 0;
371
372err_out_reset_exiv:
373 reset_control_assert(evea->rst_exiv);
374
375err_out_reset:
376 reset_control_assert(evea->rst);
377
378err_out_clock_exiv:
379 clk_disable_unprepare(evea->clk_exiv);
380
381err_out_clock:
382 clk_disable_unprepare(evea->clk);
383
384 return ret;
385}
386
387static struct snd_soc_component_driver soc_codec_evea = {
388 .probe = evea_codec_probe,
389 .suspend = evea_codec_suspend,
390 .resume = evea_codec_resume,
391 .dapm_widgets = evea_widgets,
392 .num_dapm_widgets = ARRAY_SIZE(evea_widgets),
393 .dapm_routes = evea_routes,
394 .num_dapm_routes = ARRAY_SIZE(evea_routes),
395 .controls = evea_controls,
396 .num_controls = ARRAY_SIZE(evea_controls),
397 .idle_bias_on = 1,
398 .use_pmdown_time = 1,
399 .endianness = 1,
400 .non_legacy_dai_naming = 1,
401};
402
403static struct snd_soc_dai_driver soc_dai_evea[] = {
404 {
405 .name = DRV_NAME "-line1",
406 .playback = {
407 .stream_name = "Line Out 1",
408 .formats = EVEA_FORMATS,
409 .rates = EVEA_RATES,
410 .channels_min = 2,
411 .channels_max = 2,
412 },
413 .capture = {
414 .stream_name = "Line In 1",
415 .formats = EVEA_FORMATS,
416 .rates = EVEA_RATES,
417 .channels_min = 2,
418 .channels_max = 2,
419 },
420 },
421 {
422 .name = DRV_NAME "-hp1",
423 .playback = {
424 .stream_name = "Headphone 1",
425 .formats = EVEA_FORMATS,
426 .rates = EVEA_RATES,
427 .channels_min = 2,
428 .channels_max = 2,
429 },
430 },
431 {
432 .name = DRV_NAME "-lo2",
433 .playback = {
434 .stream_name = "Line Out 2",
435 .formats = EVEA_FORMATS,
436 .rates = EVEA_RATES,
437 .channels_min = 2,
438 .channels_max = 2,
439 },
440 },
441};
442
443static const struct regmap_config evea_regmap_config = {
444 .reg_bits = 32,
445 .reg_stride = 4,
446 .val_bits = 32,
447 .max_register = 0xffc,
448 .cache_type = REGCACHE_NONE,
449};
450
451static int evea_probe(struct platform_device *pdev)
452{
453 struct evea_priv *evea;
454 void __iomem *preg;
455 int ret;
456
457 evea = devm_kzalloc(&pdev->dev, sizeof(struct evea_priv), GFP_KERNEL);
458 if (!evea)
459 return -ENOMEM;
460
461 evea->clk = devm_clk_get(&pdev->dev, "evea");
462 if (IS_ERR(evea->clk))
463 return PTR_ERR(evea->clk);
464
465 evea->clk_exiv = devm_clk_get(&pdev->dev, "exiv");
466 if (IS_ERR(evea->clk_exiv))
467 return PTR_ERR(evea->clk_exiv);
468
469 evea->rst = devm_reset_control_get_shared(&pdev->dev, "evea");
470 if (IS_ERR(evea->rst))
471 return PTR_ERR(evea->rst);
472
473 evea->rst_exiv = devm_reset_control_get_shared(&pdev->dev, "exiv");
474 if (IS_ERR(evea->rst_exiv))
475 return PTR_ERR(evea->rst_exiv);
476
477 preg = devm_platform_ioremap_resource(pdev, 0);
478 if (IS_ERR(preg))
479 return PTR_ERR(preg);
480
481 evea->regmap = devm_regmap_init_mmio(&pdev->dev, preg,
482 &evea_regmap_config);
483 if (IS_ERR(evea->regmap))
484 return PTR_ERR(evea->regmap);
485
486 ret = clk_prepare_enable(evea->clk);
487 if (ret)
488 return ret;
489
490 ret = clk_prepare_enable(evea->clk_exiv);
491 if (ret)
492 goto err_out_clock;
493
494 ret = reset_control_deassert(evea->rst);
495 if (ret)
496 goto err_out_clock_exiv;
497
498 ret = reset_control_deassert(evea->rst_exiv);
499 if (ret)
500 goto err_out_reset;
501
502
503 evea->rst_adamv = devm_reset_control_get_shared(&pdev->dev, "adamv");
504 if (IS_ERR(evea->rst_adamv)) {
505 ret = PTR_ERR(evea->rst_adamv);
506 goto err_out_reset_exiv;
507 }
508
509 ret = reset_control_deassert(evea->rst_adamv);
510 if (ret)
511 goto err_out_reset_exiv;
512
513 platform_set_drvdata(pdev, evea);
514
515 ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_evea,
516 soc_dai_evea, ARRAY_SIZE(soc_dai_evea));
517 if (ret)
518 goto err_out_reset_adamv;
519
520 return 0;
521
522err_out_reset_adamv:
523 reset_control_assert(evea->rst_adamv);
524
525err_out_reset_exiv:
526 reset_control_assert(evea->rst_exiv);
527
528err_out_reset:
529 reset_control_assert(evea->rst);
530
531err_out_clock_exiv:
532 clk_disable_unprepare(evea->clk_exiv);
533
534err_out_clock:
535 clk_disable_unprepare(evea->clk);
536
537 return ret;
538}
539
540static int evea_remove(struct platform_device *pdev)
541{
542 struct evea_priv *evea = platform_get_drvdata(pdev);
543
544 reset_control_assert(evea->rst_adamv);
545 reset_control_assert(evea->rst_exiv);
546 reset_control_assert(evea->rst);
547
548 clk_disable_unprepare(evea->clk_exiv);
549 clk_disable_unprepare(evea->clk);
550
551 return 0;
552}
553
554static const struct of_device_id evea_of_match[] __maybe_unused = {
555 { .compatible = "socionext,uniphier-evea", },
556 {}
557};
558MODULE_DEVICE_TABLE(of, evea_of_match);
559
560static struct platform_driver evea_codec_driver = {
561 .driver = {
562 .name = DRV_NAME,
563 .of_match_table = of_match_ptr(evea_of_match),
564 },
565 .probe = evea_probe,
566 .remove = evea_remove,
567};
568module_platform_driver(evea_codec_driver);
569
570MODULE_AUTHOR("Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>");
571MODULE_DESCRIPTION("UniPhier EVEA codec driver");
572MODULE_LICENSE("GPL v2");
573
