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9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/init.h>
12#include <linux/delay.h>
13#include <linux/pm.h>
14#include <linux/gpio.h>
15#include <linux/i2c.h>
16#include <linux/regmap.h>
17#include <linux/of_gpio.h>
18#include <linux/acpi.h>
19#include <linux/platform_device.h>
20#include <linux/firmware.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25#include <sound/soc-dapm.h>
26#include <sound/initval.h>
27#include <sound/tlv.h>
28
29#include "rl6231.h"
30#include "rt1308.h"
31
32static const struct reg_sequence init_list[] = {
33
34 { RT1308_I2C_I2S_SDW_SET, 0x01014005 },
35 { RT1308_CLASS_D_SET_2, 0x227f5501 },
36 { RT1308_PADS_1, 0x50150505 },
37 { RT1308_VREF, 0x18100000 },
38 { RT1308_IV_SENSE, 0x87010000 },
39 { RT1308_DUMMY_REG, 0x00000200 },
40 { RT1308_SIL_DET, 0xe1c30000 },
41 { RT1308_DC_CAL_2, 0x00ffff00 },
42 { RT1308_CLK_DET, 0x01000000 },
43 { RT1308_POWER_STATUS, 0x08800000 },
44 { RT1308_DAC_SET, 0xafaf0700 },
45
46};
47#define RT1308_INIT_REG_LEN ARRAY_SIZE(init_list)
48
49struct rt1308_priv {
50 struct snd_soc_component *component;
51 struct regmap *regmap;
52
53 int sysclk;
54 int sysclk_src;
55 int lrck;
56 int bclk;
57 int master;
58
59 int pll_src;
60 int pll_in;
61 int pll_out;
62};
63
64static const struct reg_default rt1308_reg[] = {
65
66 { 0x01, 0x1f3f5f00 },
67 { 0x02, 0x07000000 },
68 { 0x03, 0x80003e00 },
69 { 0x04, 0x80800600 },
70 { 0x05, 0x0aaa1a0a },
71 { 0x06, 0x52000000 },
72 { 0x07, 0x00000000 },
73 { 0x08, 0x00600000 },
74 { 0x09, 0xe1030000 },
75 { 0x0a, 0x00000000 },
76 { 0x0b, 0x30000000 },
77 { 0x0c, 0x7fff7000 },
78 { 0x10, 0xffff0700 },
79 { 0x11, 0x0a000000 },
80 { 0x12, 0x60040000 },
81 { 0x13, 0x00000000 },
82 { 0x14, 0x0f300000 },
83 { 0x15, 0x00000022 },
84 { 0x16, 0x02000000 },
85 { 0x17, 0x01004045 },
86 { 0x18, 0x00000000 },
87 { 0x19, 0x00000000 },
88 { 0x1a, 0x80000000 },
89 { 0x1b, 0x10325476 },
90 { 0x1c, 0x1d1d0000 },
91 { 0x20, 0xd2101300 },
92 { 0x21, 0xf3ffff00 },
93 { 0x22, 0x00000000 },
94 { 0x23, 0x00000000 },
95 { 0x24, 0x00000000 },
96 { 0x25, 0x00000000 },
97 { 0x26, 0x00000000 },
98 { 0x27, 0x00000000 },
99 { 0x28, 0x00000000 },
100 { 0x29, 0x00000000 },
101 { 0x2a, 0x00000000 },
102 { 0x2b, 0x00000000 },
103 { 0x2c, 0x00000000 },
104 { 0x2d, 0x00000000 },
105 { 0x2e, 0x00000000 },
106 { 0x2f, 0x00000000 },
107 { 0x30, 0x01000000 },
108 { 0x31, 0x20025501 },
109 { 0x32, 0x00000000 },
110 { 0x33, 0x105a0000 },
111 { 0x34, 0x10100000 },
112 { 0x35, 0x2aaa52aa },
113 { 0x36, 0x00c00000 },
114 { 0x37, 0x20046100 },
115 { 0x50, 0x10022f00 },
116 { 0x51, 0x003c0000 },
117 { 0x54, 0x04000000 },
118 { 0x55, 0x01000000 },
119 { 0x56, 0x02000000 },
120 { 0x57, 0x02000000 },
121 { 0x58, 0x02000000 },
122 { 0x59, 0x02000000 },
123 { 0x5b, 0x02000000 },
124 { 0x5c, 0x00000000 },
125 { 0x5d, 0x00000000 },
126 { 0x5e, 0x00000000 },
127 { 0x5f, 0x00000000 },
128 { 0x60, 0x02000000 },
129 { 0x61, 0x00000000 },
130 { 0x62, 0x00000000 },
131 { 0x63, 0x00000000 },
132 { 0x64, 0x00000000 },
133 { 0x65, 0x02000000 },
134 { 0x66, 0x00000000 },
135 { 0x67, 0x00000000 },
136 { 0x68, 0x00000000 },
137 { 0x69, 0x00000000 },
138 { 0x6a, 0x02000000 },
139 { 0x6c, 0x00000000 },
140 { 0x6d, 0x00000000 },
141 { 0x6e, 0x00000000 },
142 { 0x70, 0x10EC1308 },
143 { 0x71, 0x00000000 },
144 { 0x72, 0x00000000 },
145 { 0x73, 0x00000000 },
146 { 0x74, 0x00000000 },
147 { 0x75, 0x00000000 },
148 { 0x76, 0x00000000 },
149 { 0x77, 0x00000000 },
150 { 0x78, 0x00000000 },
151 { 0x79, 0x00000000 },
152 { 0x7a, 0x00000000 },
153 { 0x7b, 0x00000000 },
154 { 0x7c, 0x00000000 },
155 { 0x7d, 0x00000000 },
156 { 0x7e, 0x00000000 },
157 { 0x7f, 0x00020f00 },
158 { 0x80, 0x00000000 },
159 { 0x81, 0x00000000 },
160 { 0x82, 0x00000000 },
161 { 0x83, 0x00000000 },
162 { 0x84, 0x00000000 },
163 { 0x85, 0x00000000 },
164 { 0x86, 0x00000000 },
165 { 0x87, 0x00000000 },
166 { 0x88, 0x00000000 },
167 { 0x89, 0x00000000 },
168 { 0x8a, 0x00000000 },
169 { 0x8b, 0x00000000 },
170 { 0x8c, 0x00000000 },
171 { 0x8d, 0x00000000 },
172 { 0x8e, 0x00000000 },
173 { 0x90, 0x50250905 },
174 { 0x91, 0x15050000 },
175 { 0xa0, 0x00000000 },
176 { 0xa1, 0x00000000 },
177 { 0xa2, 0x00000000 },
178 { 0xa3, 0x00000000 },
179 { 0xa4, 0x00000000 },
180 { 0xb0, 0x00000000 },
181 { 0xb1, 0x00000000 },
182 { 0xb2, 0x00000000 },
183 { 0xb3, 0x00000000 },
184 { 0xb4, 0x00000000 },
185 { 0xb5, 0x00000000 },
186 { 0xb6, 0x00000000 },
187 { 0xb7, 0x00000000 },
188 { 0xb8, 0x00000000 },
189 { 0xb9, 0x00000000 },
190 { 0xba, 0x00000000 },
191 { 0xbb, 0x00000000 },
192 { 0xc0, 0x01000000 },
193 { 0xc1, 0x00000000 },
194 { 0xf0, 0x00000000 },
195};
196
197static int rt1308_reg_init(struct snd_soc_component *component)
198{
199 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
200
201 return regmap_multi_reg_write(rt1308->regmap, init_list,
202 RT1308_INIT_REG_LEN);
203}
204
205static bool rt1308_volatile_register(struct device *dev, unsigned int reg)
206{
207 switch (reg) {
208 case RT1308_RESET:
209 case RT1308_RESET_N:
210 case RT1308_CLK_2:
211 case RT1308_SIL_DET:
212 case RT1308_CLK_DET:
213 case RT1308_DC_DET:
214 case RT1308_DAC_SET:
215 case RT1308_DAC_BUF:
216 case RT1308_SDW_REG_RDATA:
217 case RT1308_DC_CAL_1:
218 case RT1308_PVDD_OFFSET_CTL:
219 case RT1308_CAL_OFFSET_DAC_PBTL:
220 case RT1308_CAL_OFFSET_DAC_L:
221 case RT1308_CAL_OFFSET_DAC_R:
222 case RT1308_CAL_OFFSET_PWM_L:
223 case RT1308_CAL_OFFSET_PWM_R:
224 case RT1308_CAL_PWM_VOS_ADC_L:
225 case RT1308_CAL_PWM_VOS_ADC_R:
226 case RT1308_MBIAS:
227 case RT1308_POWER_STATUS:
228 case RT1308_POWER_INT:
229 case RT1308_SINE_TONE_GEN_2:
230 case RT1308_BQ_SET:
231 case RT1308_BQ_PARA_UPDATE:
232 case RT1308_VEN_DEV_ID:
233 case RT1308_VERSION_ID:
234 case RT1308_EFUSE_1:
235 case RT1308_EFUSE_READ_PVDD_L:
236 case RT1308_EFUSE_READ_PVDD_R:
237 case RT1308_EFUSE_READ_PVDD_PTBL:
238 case RT1308_EFUSE_READ_DEV:
239 case RT1308_EFUSE_READ_R0:
240 case RT1308_EFUSE_READ_ADC_L:
241 case RT1308_EFUSE_READ_ADC_R:
242 case RT1308_EFUSE_READ_ADC_PBTL:
243 case RT1308_EFUSE_RESERVE:
244 case RT1308_EFUSE_DATA_0_MSB:
245 case RT1308_EFUSE_DATA_0_LSB:
246 case RT1308_EFUSE_DATA_1_MSB:
247 case RT1308_EFUSE_DATA_1_LSB:
248 case RT1308_EFUSE_DATA_2_MSB:
249 case RT1308_EFUSE_DATA_2_LSB:
250 case RT1308_EFUSE_DATA_3_MSB:
251 case RT1308_EFUSE_DATA_3_LSB:
252 case RT1308_EFUSE_STATUS_1:
253 case RT1308_EFUSE_STATUS_2:
254 case RT1308_DUMMY_REG:
255 return true;
256 default:
257 return false;
258 }
259}
260
261static bool rt1308_readable_register(struct device *dev, unsigned int reg)
262{
263 switch (reg) {
264 case RT1308_RESET:
265 case RT1308_RESET_N:
266 case RT1308_CLK_GATING ... RT1308_DC_DET_THRES:
267 case RT1308_DAC_SET ... RT1308_AD_FILTER_SET:
268 case RT1308_DC_CAL_1 ... RT1308_POWER_INT:
269 case RT1308_SINE_TONE_GEN_1:
270 case RT1308_SINE_TONE_GEN_2:
271 case RT1308_BQ_SET:
272 case RT1308_BQ_PARA_UPDATE:
273 case RT1308_BQ_PRE_VOL_L ... RT1308_BQ_POST_VOL_R:
274 case RT1308_BQ1_L_H0 ... RT1308_BQ2_R_A2:
275 case RT1308_VEN_DEV_ID:
276 case RT1308_VERSION_ID:
277 case RT1308_SPK_BOUND:
278 case RT1308_BQ1_EQ_L_1 ... RT1308_BQ2_EQ_R_3:
279 case RT1308_EFUSE_1 ... RT1308_EFUSE_RESERVE:
280 case RT1308_PADS_1:
281 case RT1308_PADS_2:
282 case RT1308_TEST_MODE:
283 case RT1308_TEST_1:
284 case RT1308_TEST_2:
285 case RT1308_TEST_3:
286 case RT1308_TEST_4:
287 case RT1308_EFUSE_DATA_0_MSB ... RT1308_EFUSE_STATUS_2:
288 case RT1308_TCON_1:
289 case RT1308_TCON_2:
290 case RT1308_DUMMY_REG:
291 case RT1308_MAX_REG:
292 return true;
293 default:
294 return false;
295 }
296}
297
298static int rt1308_classd_event(struct snd_soc_dapm_widget *w,
299 struct snd_kcontrol *kcontrol, int event)
300{
301 struct snd_soc_component *component =
302 snd_soc_dapm_to_component(w->dapm);
303
304 switch (event) {
305 case SND_SOC_DAPM_POST_PMU:
306 msleep(30);
307 snd_soc_component_update_bits(component, RT1308_POWER_STATUS,
308 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT,
309 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT);
310 msleep(40);
311 break;
312 case SND_SOC_DAPM_PRE_PMD:
313 snd_soc_component_update_bits(component, RT1308_POWER_STATUS,
314 RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 0);
315 usleep_range(150000, 200000);
316 break;
317
318 default:
319 break;
320 }
321
322 return 0;
323}
324
325static const char * const rt1308_rx_data_ch_select[] = {
326 "LR",
327 "LL",
328 "RL",
329 "RR",
330};
331
332static SOC_ENUM_SINGLE_DECL(rt1308_rx_data_ch_enum, RT1308_DATA_PATH, 24,
333 rt1308_rx_data_ch_select);
334
335static const struct snd_kcontrol_new rt1308_snd_controls[] = {
336
337
338 SOC_ENUM("RX Channel Select", rt1308_rx_data_ch_enum),
339};
340
341static const struct snd_kcontrol_new rt1308_sto_dac_l =
342 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET,
343 RT1308_DVOL_MUTE_L_EN_SFT, 1, 1);
344
345static const struct snd_kcontrol_new rt1308_sto_dac_r =
346 SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET,
347 RT1308_DVOL_MUTE_R_EN_SFT, 1, 1);
348
349static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = {
350
351 SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
352
353
354 SND_SOC_DAPM_SUPPLY("MBIAS20U", RT1308_POWER,
355 RT1308_POW_MBIAS20U_BIT, 0, NULL, 0),
356 SND_SOC_DAPM_SUPPLY("ALDO", RT1308_POWER,
357 RT1308_POW_ALDO_BIT, 0, NULL, 0),
358 SND_SOC_DAPM_SUPPLY("DBG", RT1308_POWER,
359 RT1308_POW_DBG_BIT, 0, NULL, 0),
360 SND_SOC_DAPM_SUPPLY("DACL", RT1308_POWER,
361 RT1308_POW_DACL_BIT, 0, NULL, 0),
362 SND_SOC_DAPM_SUPPLY("CLK25M", RT1308_POWER,
363 RT1308_POW_CLK25M_BIT, 0, NULL, 0),
364 SND_SOC_DAPM_SUPPLY("ADC_R", RT1308_POWER,
365 RT1308_POW_ADC_R_BIT, 0, NULL, 0),
366 SND_SOC_DAPM_SUPPLY("ADC_L", RT1308_POWER,
367 RT1308_POW_ADC_L_BIT, 0, NULL, 0),
368 SND_SOC_DAPM_SUPPLY("DLDO", RT1308_POWER,
369 RT1308_POW_DLDO_BIT, 0, NULL, 0),
370 SND_SOC_DAPM_SUPPLY("VREF", RT1308_POWER,
371 RT1308_POW_VREF_BIT, 0, NULL, 0),
372 SND_SOC_DAPM_SUPPLY("MIXER_R", RT1308_POWER,
373 RT1308_POW_MIXER_R_BIT, 0, NULL, 0),
374 SND_SOC_DAPM_SUPPLY("MIXER_L", RT1308_POWER,
375 RT1308_POW_MIXER_L_BIT, 0, NULL, 0),
376 SND_SOC_DAPM_SUPPLY("MBIAS4U", RT1308_POWER,
377 RT1308_POW_MBIAS4U_BIT, 0, NULL, 0),
378 SND_SOC_DAPM_SUPPLY("PLL2_LDO", RT1308_POWER,
379 RT1308_POW_PLL2_LDO_EN_BIT, 0, NULL, 0),
380 SND_SOC_DAPM_SUPPLY("PLL2B", RT1308_POWER,
381 RT1308_POW_PLL2B_EN_BIT, 0, NULL, 0),
382 SND_SOC_DAPM_SUPPLY("PLL2F", RT1308_POWER,
383 RT1308_POW_PLL2F_EN_BIT, 0, NULL, 0),
384 SND_SOC_DAPM_SUPPLY("PLL2F2", RT1308_POWER,
385 RT1308_POW_PLL2F2_EN_BIT, 0, NULL, 0),
386 SND_SOC_DAPM_SUPPLY("PLL2B2", RT1308_POWER,
387 RT1308_POW_PLL2B2_EN_BIT, 0, NULL, 0),
388
389
390 SND_SOC_DAPM_SUPPLY("DAC Power", RT1308_POWER,
391 RT1308_POW_DAC1_BIT, 0, NULL, 0),
392 SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
393 SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_l),
394 SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_r),
395
396
397 SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
398 rt1308_classd_event,
399 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
400 SND_SOC_DAPM_OUTPUT("SPOL"),
401 SND_SOC_DAPM_OUTPUT("SPOR"),
402};
403
404static const struct snd_soc_dapm_route rt1308_dapm_routes[] = {
405
406 { "DAC", NULL, "AIF1RX" },
407
408 { "DAC", NULL, "MBIAS20U" },
409 { "DAC", NULL, "ALDO" },
410 { "DAC", NULL, "DBG" },
411 { "DAC", NULL, "DACL" },
412 { "DAC", NULL, "CLK25M" },
413 { "DAC", NULL, "ADC_R" },
414 { "DAC", NULL, "ADC_L" },
415 { "DAC", NULL, "DLDO" },
416 { "DAC", NULL, "VREF" },
417 { "DAC", NULL, "MIXER_R" },
418 { "DAC", NULL, "MIXER_L" },
419 { "DAC", NULL, "MBIAS4U" },
420 { "DAC", NULL, "PLL2_LDO" },
421 { "DAC", NULL, "PLL2B" },
422 { "DAC", NULL, "PLL2F" },
423 { "DAC", NULL, "PLL2F2" },
424 { "DAC", NULL, "PLL2B2" },
425
426 { "DAC L", "Switch", "DAC" },
427 { "DAC R", "Switch", "DAC" },
428 { "DAC L", NULL, "DAC Power" },
429 { "DAC R", NULL, "DAC Power" },
430
431 { "CLASS D", NULL, "DAC L" },
432 { "CLASS D", NULL, "DAC R" },
433 { "SPOL", NULL, "CLASS D" },
434 { "SPOR", NULL, "CLASS D" },
435};
436
437static int rt1308_get_clk_info(int sclk, int rate)
438{
439 int i;
440 static const int pd[] = {1, 2, 3, 4, 6, 8, 12, 16};
441
442 if (sclk <= 0 || rate <= 0)
443 return -EINVAL;
444
445 rate = rate << 8;
446 for (i = 0; i < ARRAY_SIZE(pd); i++)
447 if (sclk == rate * pd[i])
448 return i;
449
450 return -EINVAL;
451}
452
453static int rt1308_hw_params(struct snd_pcm_substream *substream,
454 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
455{
456 struct snd_soc_component *component = dai->component;
457 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
458 unsigned int val_len = 0, val_clk, mask_clk;
459 int pre_div, bclk_ms, frame_size;
460
461 rt1308->lrck = params_rate(params);
462 pre_div = rt1308_get_clk_info(rt1308->sysclk, rt1308->lrck);
463 if (pre_div < 0) {
464 dev_err(component->dev,
465 "Unsupported clock setting %d\n", rt1308->lrck);
466 return -EINVAL;
467 }
468
469 frame_size = snd_soc_params_to_frame_size(params);
470 if (frame_size < 0) {
471 dev_err(component->dev, "Unsupported frame size: %d\n",
472 frame_size);
473 return -EINVAL;
474 }
475
476 bclk_ms = frame_size > 32;
477 rt1308->bclk = rt1308->lrck * (32 << bclk_ms);
478
479 dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
480 bclk_ms, pre_div, dai->id);
481
482 dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
483 rt1308->lrck, pre_div, dai->id);
484
485 switch (params_width(params)) {
486 case 16:
487 val_len |= RT1308_I2S_DL_SEL_16B;
488 break;
489 case 20:
490 val_len |= RT1308_I2S_DL_SEL_20B;
491 break;
492 case 24:
493 val_len |= RT1308_I2S_DL_SEL_24B;
494 break;
495 case 8:
496 val_len |= RT1308_I2S_DL_SEL_8B;
497 break;
498 default:
499 return -EINVAL;
500 }
501
502 switch (dai->id) {
503 case RT1308_AIF1:
504 mask_clk = RT1308_DIV_FS_SYS_MASK;
505 val_clk = pre_div << RT1308_DIV_FS_SYS_SFT;
506 snd_soc_component_update_bits(component,
507 RT1308_I2S_SET_2, RT1308_I2S_DL_SEL_MASK,
508 val_len);
509 break;
510 default:
511 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id);
512 return -EINVAL;
513 }
514
515 snd_soc_component_update_bits(component, RT1308_CLK_1,
516 mask_clk, val_clk);
517
518 return 0;
519}
520
521static int rt1308_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
522{
523 struct snd_soc_component *component = dai->component;
524 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
525 unsigned int reg_val = 0, reg1_val = 0;
526
527 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
528 case SND_SOC_DAIFMT_CBS_CFS:
529 rt1308->master = 0;
530 break;
531 default:
532 return -EINVAL;
533 }
534
535 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
536 case SND_SOC_DAIFMT_I2S:
537 break;
538 case SND_SOC_DAIFMT_LEFT_J:
539 reg_val |= RT1308_I2S_DF_SEL_LEFT;
540 break;
541 case SND_SOC_DAIFMT_DSP_A:
542 reg_val |= RT1308_I2S_DF_SEL_PCM_A;
543 break;
544 case SND_SOC_DAIFMT_DSP_B:
545 reg_val |= RT1308_I2S_DF_SEL_PCM_B;
546 break;
547 default:
548 return -EINVAL;
549 }
550
551 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
552 case SND_SOC_DAIFMT_NB_NF:
553 break;
554 case SND_SOC_DAIFMT_IB_NF:
555 reg1_val |= RT1308_I2S_BCLK_INV;
556 break;
557 default:
558 return -EINVAL;
559 }
560
561 switch (dai->id) {
562 case RT1308_AIF1:
563 snd_soc_component_update_bits(component,
564 RT1308_I2S_SET_1, RT1308_I2S_DF_SEL_MASK,
565 reg_val);
566 snd_soc_component_update_bits(component,
567 RT1308_I2S_SET_2, RT1308_I2S_BCLK_MASK,
568 reg1_val);
569 break;
570 default:
571 dev_err(component->dev, "Invalid dai->id: %d\n", dai->id);
572 return -EINVAL;
573 }
574 return 0;
575}
576
577static int rt1308_set_component_sysclk(struct snd_soc_component *component,
578 int clk_id, int source, unsigned int freq, int dir)
579{
580 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
581 unsigned int reg_val = 0;
582
583 if (freq == rt1308->sysclk && clk_id == rt1308->sysclk_src)
584 return 0;
585
586 switch (clk_id) {
587 case RT1308_FS_SYS_S_MCLK:
588 reg_val |= RT1308_SEL_FS_SYS_SRC_MCLK;
589 snd_soc_component_update_bits(component,
590 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK,
591 RT1308_MCLK_DET_EN);
592 break;
593 case RT1308_FS_SYS_S_BCLK:
594 reg_val |= RT1308_SEL_FS_SYS_SRC_BCLK;
595 break;
596 case RT1308_FS_SYS_S_PLL:
597 reg_val |= RT1308_SEL_FS_SYS_SRC_PLL;
598 break;
599 case RT1308_FS_SYS_S_RCCLK:
600 reg_val |= RT1308_SEL_FS_SYS_SRC_RCCLK;
601 break;
602 default:
603 dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
604 return -EINVAL;
605 }
606 snd_soc_component_update_bits(component, RT1308_CLK_1,
607 RT1308_SEL_FS_SYS_MASK, reg_val);
608 rt1308->sysclk = freq;
609 rt1308->sysclk_src = clk_id;
610
611 dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n",
612 freq, clk_id);
613
614 return 0;
615}
616
617static int rt1308_set_component_pll(struct snd_soc_component *component,
618 int pll_id, int source, unsigned int freq_in,
619 unsigned int freq_out)
620{
621 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
622 struct rl6231_pll_code pll_code;
623 int ret;
624
625 if (source == rt1308->pll_src && freq_in == rt1308->pll_in &&
626 freq_out == rt1308->pll_out)
627 return 0;
628
629 if (!freq_in || !freq_out) {
630 dev_dbg(component->dev, "PLL disabled\n");
631
632 rt1308->pll_in = 0;
633 rt1308->pll_out = 0;
634 snd_soc_component_update_bits(component,
635 RT1308_CLK_1, RT1308_SEL_FS_SYS_MASK,
636 RT1308_SEL_FS_SYS_SRC_MCLK);
637 return 0;
638 }
639
640 switch (source) {
641 case RT1308_PLL_S_MCLK:
642 snd_soc_component_update_bits(component,
643 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK,
644 RT1308_SEL_PLL_SRC_MCLK);
645 snd_soc_component_update_bits(component,
646 RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK,
647 RT1308_MCLK_DET_EN);
648 break;
649 case RT1308_PLL_S_BCLK:
650 snd_soc_component_update_bits(component,
651 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK,
652 RT1308_SEL_PLL_SRC_BCLK);
653 break;
654 case RT1308_PLL_S_RCCLK:
655 snd_soc_component_update_bits(component,
656 RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK,
657 RT1308_SEL_PLL_SRC_RCCLK);
658 freq_in = 25000000;
659 break;
660 default:
661 dev_err(component->dev, "Unknown PLL Source %d\n", source);
662 return -EINVAL;
663 }
664
665 ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
666 if (ret < 0) {
667 dev_err(component->dev, "Unsupport input clock %d\n", freq_in);
668 return ret;
669 }
670
671 dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n",
672 pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
673 pll_code.n_code, pll_code.k_code);
674
675 snd_soc_component_write(component, RT1308_PLL_1,
676 pll_code.k_code << RT1308_PLL1_K_SFT |
677 pll_code.m_bp << RT1308_PLL1_M_BYPASS_SFT |
678 (pll_code.m_bp ? 0 : pll_code.m_code) << RT1308_PLL1_M_SFT |
679 pll_code.n_code << RT1308_PLL1_N_SFT);
680
681 rt1308->pll_in = freq_in;
682 rt1308->pll_out = freq_out;
683 rt1308->pll_src = source;
684
685 return 0;
686}
687
688static int rt1308_probe(struct snd_soc_component *component)
689{
690 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
691
692 rt1308->component = component;
693
694 return rt1308_reg_init(component);
695}
696
697static void rt1308_remove(struct snd_soc_component *component)
698{
699 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
700
701 regmap_write(rt1308->regmap, RT1308_RESET, 0);
702}
703
704#ifdef CONFIG_PM
705static int rt1308_suspend(struct snd_soc_component *component)
706{
707 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
708
709 regcache_cache_only(rt1308->regmap, true);
710 regcache_mark_dirty(rt1308->regmap);
711
712 return 0;
713}
714
715static int rt1308_resume(struct snd_soc_component *component)
716{
717 struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component);
718
719 regcache_cache_only(rt1308->regmap, false);
720 regcache_sync(rt1308->regmap);
721
722 return 0;
723}
724#else
725#define rt1308_suspend NULL
726#define rt1308_resume NULL
727#endif
728
729#define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000
730#define RT1308_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
731 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
732 SNDRV_PCM_FMTBIT_S24_LE)
733
734static const struct snd_soc_dai_ops rt1308_aif_dai_ops = {
735 .hw_params = rt1308_hw_params,
736 .set_fmt = rt1308_set_dai_fmt,
737};
738
739static struct snd_soc_dai_driver rt1308_dai[] = {
740 {
741 .name = "rt1308-aif",
742 .playback = {
743 .stream_name = "AIF1 Playback",
744 .channels_min = 1,
745 .channels_max = 2,
746 .rates = RT1308_STEREO_RATES,
747 .formats = RT1308_FORMATS,
748 },
749 .ops = &rt1308_aif_dai_ops,
750 },
751};
752
753static const struct snd_soc_component_driver soc_component_dev_rt1308 = {
754 .probe = rt1308_probe,
755 .remove = rt1308_remove,
756 .suspend = rt1308_suspend,
757 .resume = rt1308_resume,
758 .controls = rt1308_snd_controls,
759 .num_controls = ARRAY_SIZE(rt1308_snd_controls),
760 .dapm_widgets = rt1308_dapm_widgets,
761 .num_dapm_widgets = ARRAY_SIZE(rt1308_dapm_widgets),
762 .dapm_routes = rt1308_dapm_routes,
763 .num_dapm_routes = ARRAY_SIZE(rt1308_dapm_routes),
764 .set_sysclk = rt1308_set_component_sysclk,
765 .set_pll = rt1308_set_component_pll,
766 .use_pmdown_time = 1,
767 .endianness = 1,
768 .non_legacy_dai_naming = 1,
769};
770
771static const struct regmap_config rt1308_regmap = {
772 .reg_bits = 8,
773 .val_bits = 32,
774 .max_register = RT1308_MAX_REG,
775 .volatile_reg = rt1308_volatile_register,
776 .readable_reg = rt1308_readable_register,
777 .cache_type = REGCACHE_RBTREE,
778 .reg_defaults = rt1308_reg,
779 .num_reg_defaults = ARRAY_SIZE(rt1308_reg),
780 .use_single_read = true,
781 .use_single_write = true,
782};
783
784#ifdef CONFIG_OF
785static const struct of_device_id rt1308_of_match[] = {
786 { .compatible = "realtek,rt1308", },
787 { },
788};
789MODULE_DEVICE_TABLE(of, rt1308_of_match);
790#endif
791
792#ifdef CONFIG_ACPI
793static struct acpi_device_id rt1308_acpi_match[] = {
794 { "10EC1308", 0, },
795 { },
796};
797MODULE_DEVICE_TABLE(acpi, rt1308_acpi_match);
798#endif
799
800static const struct i2c_device_id rt1308_i2c_id[] = {
801 { "rt1308", 0 },
802 { }
803};
804MODULE_DEVICE_TABLE(i2c, rt1308_i2c_id);
805
806static void rt1308_efuse(struct rt1308_priv *rt1308)
807{
808 regmap_write(rt1308->regmap, RT1308_RESET, 0);
809
810 regmap_write(rt1308->regmap, RT1308_POWER_STATUS, 0x01800000);
811 msleep(100);
812 regmap_write(rt1308->regmap, RT1308_EFUSE_1, 0x44fe0f00);
813 msleep(20);
814 regmap_write(rt1308->regmap, RT1308_PVDD_OFFSET_CTL, 0x10000000);
815}
816
817static int rt1308_i2c_probe(struct i2c_client *i2c,
818 const struct i2c_device_id *id)
819{
820 struct rt1308_priv *rt1308;
821 int ret;
822 unsigned int val;
823
824 rt1308 = devm_kzalloc(&i2c->dev, sizeof(struct rt1308_priv),
825 GFP_KERNEL);
826 if (rt1308 == NULL)
827 return -ENOMEM;
828
829 i2c_set_clientdata(i2c, rt1308);
830
831 rt1308->regmap = devm_regmap_init_i2c(i2c, &rt1308_regmap);
832 if (IS_ERR(rt1308->regmap)) {
833 ret = PTR_ERR(rt1308->regmap);
834 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
835 ret);
836 return ret;
837 }
838
839 regmap_read(rt1308->regmap, RT1308_VEN_DEV_ID, &val);
840
841 if ((val & 0xFFFFFF00) != RT1308_DEVICE_ID_NUM) {
842 dev_err(&i2c->dev,
843 "Device with ID register %x is not rt1308\n", val);
844 return -ENODEV;
845 }
846
847 rt1308_efuse(rt1308);
848
849 return devm_snd_soc_register_component(&i2c->dev,
850 &soc_component_dev_rt1308,
851 rt1308_dai, ARRAY_SIZE(rt1308_dai));
852}
853
854static void rt1308_i2c_shutdown(struct i2c_client *client)
855{
856 struct rt1308_priv *rt1308 = i2c_get_clientdata(client);
857
858 regmap_write(rt1308->regmap, RT1308_RESET, 0);
859}
860
861static struct i2c_driver rt1308_i2c_driver = {
862 .driver = {
863 .name = "rt1308",
864 .of_match_table = of_match_ptr(rt1308_of_match),
865 .acpi_match_table = ACPI_PTR(rt1308_acpi_match),
866 },
867 .probe = rt1308_i2c_probe,
868 .shutdown = rt1308_i2c_shutdown,
869 .id_table = rt1308_i2c_id,
870};
871module_i2c_driver(rt1308_i2c_driver);
872
873MODULE_DESCRIPTION("ASoC RT1308 amplifier driver");
874MODULE_AUTHOR("Derek Fang <derek.fang@realtek.com>");
875MODULE_LICENSE("GPL v2");
876
