1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // rt5682-sdw.c -- RT5682 ALSA SoC audio component driver
4 //
5 // Copyright 2019 Realtek Semiconductor Corp.
6 // Author: Oder Chiou <oder_chiou@realtek.com>
7 //
8
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/acpi.h>
15 #include <linux/pm_runtime.h>
16 #include <linux/regulator/consumer.h>
17 #include <linux/mutex.h>
18 #include <linux/soundwire/sdw.h>
19 #include <linux/soundwire/sdw_type.h>
20 #include <linux/soundwire/sdw_registers.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/jack.h>
25 #include <sound/sdw.h>
26 #include <sound/soc.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/initval.h>
29 #include <sound/tlv.h>
30
31 #include "rt5682.h"
32
33 #define RT5682_SDW_ADDR_L 0x3000
34 #define RT5682_SDW_ADDR_H 0x3001
35 #define RT5682_SDW_DATA_L 0x3004
36 #define RT5682_SDW_DATA_H 0x3005
37 #define RT5682_SDW_CMD 0x3008
38
rt5682_sdw_read(void * context,unsigned int reg,unsigned int * val)39 static int rt5682_sdw_read(void *context, unsigned int reg, unsigned int *val)
40 {
41 struct device *dev = context;
42 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
43 unsigned int data_l, data_h;
44
45 regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 0);
46 regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
47 regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
48 regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_H, &data_h);
49 regmap_read(rt5682->sdw_regmap, RT5682_SDW_DATA_L, &data_l);
50
51 *val = (data_h << 8) | data_l;
52
53 dev_vdbg(dev, "[%s] %04x => %04x\n", __func__, reg, *val);
54
55 return 0;
56 }
57
rt5682_sdw_write(void * context,unsigned int reg,unsigned int val)58 static int rt5682_sdw_write(void *context, unsigned int reg, unsigned int val)
59 {
60 struct device *dev = context;
61 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
62
63 regmap_write(rt5682->sdw_regmap, RT5682_SDW_CMD, 1);
64 regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_H, (reg >> 8) & 0xff);
65 regmap_write(rt5682->sdw_regmap, RT5682_SDW_ADDR_L, (reg & 0xff));
66 regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_H, (val >> 8) & 0xff);
67 regmap_write(rt5682->sdw_regmap, RT5682_SDW_DATA_L, (val & 0xff));
68
69 dev_vdbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val);
70
71 return 0;
72 }
73
74 static const struct regmap_config rt5682_sdw_indirect_regmap = {
75 .reg_bits = 16,
76 .val_bits = 16,
77 .max_register = RT5682_I2C_MODE,
78 .volatile_reg = rt5682_volatile_register,
79 .readable_reg = rt5682_readable_register,
80 .cache_type = REGCACHE_MAPLE,
81 .reg_defaults = rt5682_reg,
82 .num_reg_defaults = RT5682_REG_NUM,
83 .use_single_read = true,
84 .use_single_write = true,
85 .reg_read = rt5682_sdw_read,
86 .reg_write = rt5682_sdw_write,
87 };
88
rt5682_set_sdw_stream(struct snd_soc_dai * dai,void * sdw_stream,int direction)89 static int rt5682_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
90 int direction)
91 {
92 snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
93
94 return 0;
95 }
96
rt5682_sdw_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)97 static void rt5682_sdw_shutdown(struct snd_pcm_substream *substream,
98 struct snd_soc_dai *dai)
99 {
100 snd_soc_dai_set_dma_data(dai, substream, NULL);
101 }
102
rt5682_sdw_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)103 static int rt5682_sdw_hw_params(struct snd_pcm_substream *substream,
104 struct snd_pcm_hw_params *params,
105 struct snd_soc_dai *dai)
106 {
107 struct snd_soc_component *component = dai->component;
108 struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
109 struct sdw_stream_config stream_config = {0};
110 struct sdw_port_config port_config = {0};
111 struct sdw_stream_runtime *sdw_stream;
112 int retval;
113 unsigned int val_p = 0, val_c = 0, osr_p = 0, osr_c = 0;
114
115 dev_dbg(dai->dev, "%s %s", __func__, dai->name);
116
117 sdw_stream = snd_soc_dai_get_dma_data(dai, substream);
118 if (!sdw_stream)
119 return -ENOMEM;
120
121 if (!rt5682->slave)
122 return -EINVAL;
123
124 /* SoundWire specific configuration */
125 snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
126
127 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
128 port_config.num = 1;
129 else
130 port_config.num = 2;
131
132 retval = sdw_stream_add_slave(rt5682->slave, &stream_config,
133 &port_config, 1, sdw_stream);
134 if (retval) {
135 dev_err(dai->dev, "Unable to configure port\n");
136 return retval;
137 }
138
139 switch (params_rate(params)) {
140 case 48000:
141 val_p = RT5682_SDW_REF_1_48K;
142 val_c = RT5682_SDW_REF_2_48K;
143 break;
144 case 96000:
145 val_p = RT5682_SDW_REF_1_96K;
146 val_c = RT5682_SDW_REF_2_96K;
147 break;
148 case 192000:
149 val_p = RT5682_SDW_REF_1_192K;
150 val_c = RT5682_SDW_REF_2_192K;
151 break;
152 case 32000:
153 val_p = RT5682_SDW_REF_1_32K;
154 val_c = RT5682_SDW_REF_2_32K;
155 break;
156 case 24000:
157 val_p = RT5682_SDW_REF_1_24K;
158 val_c = RT5682_SDW_REF_2_24K;
159 break;
160 case 16000:
161 val_p = RT5682_SDW_REF_1_16K;
162 val_c = RT5682_SDW_REF_2_16K;
163 break;
164 case 12000:
165 val_p = RT5682_SDW_REF_1_12K;
166 val_c = RT5682_SDW_REF_2_12K;
167 break;
168 case 8000:
169 val_p = RT5682_SDW_REF_1_8K;
170 val_c = RT5682_SDW_REF_2_8K;
171 break;
172 case 44100:
173 val_p = RT5682_SDW_REF_1_44K;
174 val_c = RT5682_SDW_REF_2_44K;
175 break;
176 case 88200:
177 val_p = RT5682_SDW_REF_1_88K;
178 val_c = RT5682_SDW_REF_2_88K;
179 break;
180 case 176400:
181 val_p = RT5682_SDW_REF_1_176K;
182 val_c = RT5682_SDW_REF_2_176K;
183 break;
184 case 22050:
185 val_p = RT5682_SDW_REF_1_22K;
186 val_c = RT5682_SDW_REF_2_22K;
187 break;
188 case 11025:
189 val_p = RT5682_SDW_REF_1_11K;
190 val_c = RT5682_SDW_REF_2_11K;
191 break;
192 default:
193 return -EINVAL;
194 }
195
196 if (params_rate(params) <= 48000) {
197 osr_p = RT5682_DAC_OSR_D_8;
198 osr_c = RT5682_ADC_OSR_D_8;
199 } else if (params_rate(params) <= 96000) {
200 osr_p = RT5682_DAC_OSR_D_4;
201 osr_c = RT5682_ADC_OSR_D_4;
202 } else {
203 osr_p = RT5682_DAC_OSR_D_2;
204 osr_c = RT5682_ADC_OSR_D_2;
205 }
206
207 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
208 regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
209 RT5682_SDW_REF_1_MASK, val_p);
210 regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
211 RT5682_DAC_OSR_MASK, osr_p);
212 } else {
213 regmap_update_bits(rt5682->regmap, RT5682_SDW_REF_CLK,
214 RT5682_SDW_REF_2_MASK, val_c);
215 regmap_update_bits(rt5682->regmap, RT5682_ADDA_CLK_1,
216 RT5682_ADC_OSR_MASK, osr_c);
217 }
218
219 return retval;
220 }
221
rt5682_sdw_hw_free(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)222 static int rt5682_sdw_hw_free(struct snd_pcm_substream *substream,
223 struct snd_soc_dai *dai)
224 {
225 struct snd_soc_component *component = dai->component;
226 struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
227 struct sdw_stream_runtime *sdw_stream =
228 snd_soc_dai_get_dma_data(dai, substream);
229
230 if (!rt5682->slave)
231 return -EINVAL;
232
233 sdw_stream_remove_slave(rt5682->slave, sdw_stream);
234 return 0;
235 }
236
237 static const struct snd_soc_dai_ops rt5682_sdw_ops = {
238 .hw_params = rt5682_sdw_hw_params,
239 .hw_free = rt5682_sdw_hw_free,
240 .set_stream = rt5682_set_sdw_stream,
241 .shutdown = rt5682_sdw_shutdown,
242 };
243
244 static struct snd_soc_dai_driver rt5682_dai[] = {
245 {
246 .name = "rt5682-aif1",
247 .id = RT5682_AIF1,
248 .playback = {
249 .stream_name = "AIF1 Playback",
250 .channels_min = 1,
251 .channels_max = 2,
252 .rates = RT5682_STEREO_RATES,
253 .formats = RT5682_FORMATS,
254 },
255 .capture = {
256 .stream_name = "AIF1 Capture",
257 .channels_min = 1,
258 .channels_max = 2,
259 .rates = RT5682_STEREO_RATES,
260 .formats = RT5682_FORMATS,
261 },
262 .ops = &rt5682_aif1_dai_ops,
263 },
264 {
265 .name = "rt5682-aif2",
266 .id = RT5682_AIF2,
267 .capture = {
268 .stream_name = "AIF2 Capture",
269 .channels_min = 1,
270 .channels_max = 2,
271 .rates = RT5682_STEREO_RATES,
272 .formats = RT5682_FORMATS,
273 },
274 .ops = &rt5682_aif2_dai_ops,
275 },
276 {
277 .name = "rt5682-sdw",
278 .id = RT5682_SDW,
279 .playback = {
280 .stream_name = "SDW Playback",
281 .channels_min = 1,
282 .channels_max = 2,
283 .rates = RT5682_STEREO_RATES,
284 .formats = RT5682_FORMATS,
285 },
286 .capture = {
287 .stream_name = "SDW Capture",
288 .channels_min = 1,
289 .channels_max = 2,
290 .rates = RT5682_STEREO_RATES,
291 .formats = RT5682_FORMATS,
292 },
293 .ops = &rt5682_sdw_ops,
294 },
295 };
296
rt5682_sdw_init(struct device * dev,struct regmap * regmap,struct sdw_slave * slave)297 static int rt5682_sdw_init(struct device *dev, struct regmap *regmap,
298 struct sdw_slave *slave)
299 {
300 struct rt5682_priv *rt5682;
301 int ret;
302
303 rt5682 = devm_kzalloc(dev, sizeof(*rt5682), GFP_KERNEL);
304 if (!rt5682)
305 return -ENOMEM;
306
307 dev_set_drvdata(dev, rt5682);
308 rt5682->slave = slave;
309 rt5682->sdw_regmap = regmap;
310 rt5682->is_sdw = true;
311
312 mutex_init(&rt5682->disable_irq_lock);
313
314 rt5682->regmap = devm_regmap_init(dev, NULL, dev,
315 &rt5682_sdw_indirect_regmap);
316 if (IS_ERR(rt5682->regmap)) {
317 ret = PTR_ERR(rt5682->regmap);
318 dev_err(dev, "Failed to allocate register map: %d\n",
319 ret);
320 return ret;
321 }
322
323
324 ret = rt5682_get_ldo1(rt5682, dev);
325 if (ret)
326 return ret;
327
328 regcache_cache_only(rt5682->sdw_regmap, true);
329 regcache_cache_only(rt5682->regmap, true);
330
331 /*
332 * Mark hw_init to false
333 * HW init will be performed when device reports present
334 */
335 rt5682->hw_init = false;
336 rt5682->first_hw_init = false;
337
338 mutex_init(&rt5682->calibrate_mutex);
339 INIT_DELAYED_WORK(&rt5682->jack_detect_work,
340 rt5682_jack_detect_handler);
341
342 ret = devm_snd_soc_register_component(dev,
343 &rt5682_soc_component_dev,
344 rt5682_dai, ARRAY_SIZE(rt5682_dai));
345 if (ret < 0)
346 return ret;
347
348 /* set autosuspend parameters */
349 pm_runtime_set_autosuspend_delay(dev, 3000);
350 pm_runtime_use_autosuspend(dev);
351
352 /* make sure the device does not suspend immediately */
353 pm_runtime_mark_last_busy(dev);
354
355 pm_runtime_enable(dev);
356
357 /* important note: the device is NOT tagged as 'active' and will remain
358 * 'suspended' until the hardware is enumerated/initialized. This is required
359 * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently
360 * fail with -EACCESS because of race conditions between card creation and enumeration
361 */
362
363 dev_dbg(dev, "%s\n", __func__);
364
365 return ret;
366 }
367
rt5682_io_init(struct device * dev,struct sdw_slave * slave)368 static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
369 {
370 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
371 int ret = 0, loop = 10;
372 unsigned int val;
373
374 rt5682->disable_irq = false;
375
376 if (rt5682->hw_init)
377 return 0;
378
379 regcache_cache_only(rt5682->sdw_regmap, false);
380 regcache_cache_only(rt5682->regmap, false);
381 if (rt5682->first_hw_init)
382 regcache_cache_bypass(rt5682->regmap, true);
383
384 /*
385 * PM runtime status is marked as 'active' only when a Slave reports as Attached
386 */
387 if (!rt5682->first_hw_init)
388 /* update count of parent 'active' children */
389 pm_runtime_set_active(&slave->dev);
390
391 pm_runtime_get_noresume(&slave->dev);
392
393 while (loop > 0) {
394 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
395 if (val == DEVICE_ID)
396 break;
397 dev_warn(dev, "Device with ID register %x is not rt5682\n", val);
398 usleep_range(30000, 30005);
399 loop--;
400 }
401
402 if (val != DEVICE_ID) {
403 dev_err(dev, "Device with ID register %x is not rt5682\n", val);
404 ret = -ENODEV;
405 goto err_nodev;
406 }
407
408 rt5682_calibrate(rt5682);
409
410 if (rt5682->first_hw_init) {
411 regcache_cache_bypass(rt5682->regmap, false);
412 regcache_mark_dirty(rt5682->regmap);
413 regcache_sync(rt5682->regmap);
414
415 /* volatile registers */
416 regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
417 RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
418
419 goto reinit;
420 }
421
422 rt5682_apply_patch_list(rt5682, dev);
423
424 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);
425
426 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1,
427 RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK,
428 RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X);
429 regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080);
430 regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);
431 regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,
432 RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);
433 regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,
434 RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);
435 regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,
436 RT5682_PM_HP_MASK, RT5682_PM_HP_HV);
437
438 /* Soundwire */
439 regmap_write(rt5682->regmap, RT5682_PLL2_INTERNAL, 0xa266);
440 regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_1, 0x1700);
441 regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_2, 0x0006);
442 regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_3, 0x2600);
443 regmap_write(rt5682->regmap, RT5682_PLL2_CTRL_4, 0x0c8f);
444 regmap_write(rt5682->regmap, RT5682_PLL_TRACK_2, 0x3000);
445 regmap_write(rt5682->regmap, RT5682_PLL_TRACK_3, 0x4000);
446 regmap_update_bits(rt5682->regmap, RT5682_GLB_CLK,
447 RT5682_SCLK_SRC_MASK | RT5682_PLL2_SRC_MASK,
448 RT5682_SCLK_SRC_PLL2 | RT5682_PLL2_SRC_SDW);
449
450 regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_2,
451 RT5682_EXT_JD_SRC, RT5682_EXT_JD_SRC_MANUAL);
452 regmap_write(rt5682->regmap, RT5682_CBJ_CTRL_1, 0xd142);
453 regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_5, 0x0700, 0x0600);
454 regmap_update_bits(rt5682->regmap, RT5682_CBJ_CTRL_3,
455 RT5682_CBJ_IN_BUF_EN, RT5682_CBJ_IN_BUF_EN);
456 regmap_update_bits(rt5682->regmap, RT5682_SAR_IL_CMD_1,
457 RT5682_SAR_POW_MASK, RT5682_SAR_POW_EN);
458 regmap_update_bits(rt5682->regmap, RT5682_RC_CLK_CTRL,
459 RT5682_POW_IRQ | RT5682_POW_JDH |
460 RT5682_POW_ANA, RT5682_POW_IRQ |
461 RT5682_POW_JDH | RT5682_POW_ANA);
462 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_2,
463 RT5682_PWR_JDH, RT5682_PWR_JDH);
464 regmap_update_bits(rt5682->regmap, RT5682_IRQ_CTRL_2,
465 RT5682_JD1_EN_MASK | RT5682_JD1_IRQ_MASK,
466 RT5682_JD1_EN | RT5682_JD1_IRQ_PUL);
467
468 reinit:
469 mod_delayed_work(system_power_efficient_wq,
470 &rt5682->jack_detect_work, msecs_to_jiffies(250));
471
472 /* Mark Slave initialization complete */
473 rt5682->hw_init = true;
474 rt5682->first_hw_init = true;
475
476 err_nodev:
477 pm_runtime_mark_last_busy(&slave->dev);
478 pm_runtime_put_autosuspend(&slave->dev);
479
480 dev_dbg(&slave->dev, "%s hw_init complete: %d\n", __func__, ret);
481
482 return ret;
483 }
484
rt5682_sdw_readable_register(struct device * dev,unsigned int reg)485 static bool rt5682_sdw_readable_register(struct device *dev, unsigned int reg)
486 {
487 switch (reg) {
488 case 0x00e0:
489 case 0x00f0:
490 case 0x3000:
491 case 0x3001:
492 case 0x3004:
493 case 0x3005:
494 case 0x3008:
495 return true;
496 default:
497 return false;
498 }
499 }
500
501 static const struct regmap_config rt5682_sdw_regmap = {
502 .name = "sdw",
503 .reg_bits = 32,
504 .val_bits = 8,
505 .max_register = RT5682_I2C_MODE,
506 .readable_reg = rt5682_sdw_readable_register,
507 .cache_type = REGCACHE_NONE,
508 .use_single_read = true,
509 .use_single_write = true,
510 };
511
rt5682_update_status(struct sdw_slave * slave,enum sdw_slave_status status)512 static int rt5682_update_status(struct sdw_slave *slave,
513 enum sdw_slave_status status)
514 {
515 struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
516
517 if (status == SDW_SLAVE_UNATTACHED)
518 rt5682->hw_init = false;
519
520 /*
521 * Perform initialization only if slave status is present and
522 * hw_init flag is false
523 */
524 if (rt5682->hw_init || status != SDW_SLAVE_ATTACHED)
525 return 0;
526
527 /* perform I/O transfers required for Slave initialization */
528 return rt5682_io_init(&slave->dev, slave);
529 }
530
rt5682_read_prop(struct sdw_slave * slave)531 static int rt5682_read_prop(struct sdw_slave *slave)
532 {
533 struct sdw_slave_prop *prop = &slave->prop;
534 int nval, i;
535 u32 bit;
536 unsigned long addr;
537 struct sdw_dpn_prop *dpn;
538
539 prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
540 SDW_SCP_INT1_PARITY;
541 prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
542
543 prop->paging_support = false;
544
545 /* first we need to allocate memory for set bits in port lists */
546 prop->source_ports = 0x4; /* BITMAP: 00000100 */
547 prop->sink_ports = 0x2; /* BITMAP: 00000010 */
548
549 nval = hweight32(prop->source_ports);
550 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
551 sizeof(*prop->src_dpn_prop),
552 GFP_KERNEL);
553 if (!prop->src_dpn_prop)
554 return -ENOMEM;
555
556 i = 0;
557 dpn = prop->src_dpn_prop;
558 addr = prop->source_ports;
559 for_each_set_bit(bit, &addr, 32) {
560 dpn[i].num = bit;
561 dpn[i].type = SDW_DPN_FULL;
562 dpn[i].simple_ch_prep_sm = true;
563 dpn[i].ch_prep_timeout = 10;
564 i++;
565 }
566
567 /* do this again for sink now */
568 nval = hweight32(prop->sink_ports);
569 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
570 sizeof(*prop->sink_dpn_prop),
571 GFP_KERNEL);
572 if (!prop->sink_dpn_prop)
573 return -ENOMEM;
574
575 i = 0;
576 dpn = prop->sink_dpn_prop;
577 addr = prop->sink_ports;
578 for_each_set_bit(bit, &addr, 32) {
579 dpn[i].num = bit;
580 dpn[i].type = SDW_DPN_FULL;
581 dpn[i].simple_ch_prep_sm = true;
582 dpn[i].ch_prep_timeout = 10;
583 i++;
584 }
585
586 /* set the timeout values */
587 prop->clk_stop_timeout = 20;
588
589 /* wake-up event */
590 prop->wake_capable = 1;
591
592 return 0;
593 }
594
595 /* Bus clock frequency */
596 #define RT5682_CLK_FREQ_9600000HZ 9600000
597 #define RT5682_CLK_FREQ_12000000HZ 12000000
598 #define RT5682_CLK_FREQ_6000000HZ 6000000
599 #define RT5682_CLK_FREQ_4800000HZ 4800000
600 #define RT5682_CLK_FREQ_2400000HZ 2400000
601 #define RT5682_CLK_FREQ_12288000HZ 12288000
602
rt5682_clock_config(struct device * dev)603 static int rt5682_clock_config(struct device *dev)
604 {
605 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
606 unsigned int clk_freq, value;
607
608 clk_freq = (rt5682->params.curr_dr_freq >> 1);
609
610 switch (clk_freq) {
611 case RT5682_CLK_FREQ_12000000HZ:
612 value = 0x0;
613 break;
614 case RT5682_CLK_FREQ_6000000HZ:
615 value = 0x1;
616 break;
617 case RT5682_CLK_FREQ_9600000HZ:
618 value = 0x2;
619 break;
620 case RT5682_CLK_FREQ_4800000HZ:
621 value = 0x3;
622 break;
623 case RT5682_CLK_FREQ_2400000HZ:
624 value = 0x4;
625 break;
626 case RT5682_CLK_FREQ_12288000HZ:
627 value = 0x5;
628 break;
629 default:
630 return -EINVAL;
631 }
632
633 regmap_write(rt5682->sdw_regmap, 0xe0, value);
634 regmap_write(rt5682->sdw_regmap, 0xf0, value);
635
636 dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq);
637
638 return 0;
639 }
640
rt5682_bus_config(struct sdw_slave * slave,struct sdw_bus_params * params)641 static int rt5682_bus_config(struct sdw_slave *slave,
642 struct sdw_bus_params *params)
643 {
644 struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
645 int ret;
646
647 memcpy(&rt5682->params, params, sizeof(*params));
648
649 ret = rt5682_clock_config(&slave->dev);
650 if (ret < 0)
651 dev_err(&slave->dev, "Invalid clk config");
652
653 return ret;
654 }
655
rt5682_interrupt_callback(struct sdw_slave * slave,struct sdw_slave_intr_status * status)656 static int rt5682_interrupt_callback(struct sdw_slave *slave,
657 struct sdw_slave_intr_status *status)
658 {
659 struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
660
661 dev_dbg(&slave->dev,
662 "%s control_port_stat=%x", __func__, status->control_port);
663
664 mutex_lock(&rt5682->disable_irq_lock);
665 if (status->control_port & 0x4 && !rt5682->disable_irq) {
666 mod_delayed_work(system_power_efficient_wq,
667 &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time));
668 }
669 mutex_unlock(&rt5682->disable_irq_lock);
670
671 return 0;
672 }
673
674 static const struct sdw_slave_ops rt5682_slave_ops = {
675 .read_prop = rt5682_read_prop,
676 .interrupt_callback = rt5682_interrupt_callback,
677 .update_status = rt5682_update_status,
678 .bus_config = rt5682_bus_config,
679 };
680
rt5682_sdw_probe(struct sdw_slave * slave,const struct sdw_device_id * id)681 static int rt5682_sdw_probe(struct sdw_slave *slave,
682 const struct sdw_device_id *id)
683 {
684 struct regmap *regmap;
685
686 /* Regmap Initialization */
687 regmap = devm_regmap_init_sdw(slave, &rt5682_sdw_regmap);
688 if (IS_ERR(regmap))
689 return -EINVAL;
690
691 return rt5682_sdw_init(&slave->dev, regmap, slave);
692 }
693
rt5682_sdw_remove(struct sdw_slave * slave)694 static int rt5682_sdw_remove(struct sdw_slave *slave)
695 {
696 struct rt5682_priv *rt5682 = dev_get_drvdata(&slave->dev);
697
698 if (rt5682->hw_init)
699 cancel_delayed_work_sync(&rt5682->jack_detect_work);
700
701 pm_runtime_disable(&slave->dev);
702
703 return 0;
704 }
705
706 static const struct sdw_device_id rt5682_id[] = {
707 SDW_SLAVE_ENTRY_EXT(0x025d, 0x5682, 0x2, 0, 0),
708 {},
709 };
710 MODULE_DEVICE_TABLE(sdw, rt5682_id);
711
rt5682_dev_suspend(struct device * dev)712 static int __maybe_unused rt5682_dev_suspend(struct device *dev)
713 {
714 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
715
716 if (!rt5682->hw_init)
717 return 0;
718
719 cancel_delayed_work_sync(&rt5682->jack_detect_work);
720
721 regcache_cache_only(rt5682->sdw_regmap, true);
722 regcache_cache_only(rt5682->regmap, true);
723 regcache_mark_dirty(rt5682->regmap);
724
725 return 0;
726 }
727
rt5682_dev_system_suspend(struct device * dev)728 static int __maybe_unused rt5682_dev_system_suspend(struct device *dev)
729 {
730 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
731 struct sdw_slave *slave = dev_to_sdw_dev(dev);
732 int ret;
733
734 if (!rt5682->hw_init)
735 return 0;
736
737 /*
738 * prevent new interrupts from being handled after the
739 * deferred work completes and before the parent disables
740 * interrupts on the link
741 */
742 mutex_lock(&rt5682->disable_irq_lock);
743 rt5682->disable_irq = true;
744 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1,
745 SDW_SCP_INT1_IMPL_DEF, 0);
746 mutex_unlock(&rt5682->disable_irq_lock);
747
748 if (ret < 0) {
749 /* log but don't prevent suspend from happening */
750 dev_dbg(&slave->dev, "%s: could not disable imp-def interrupts\n:", __func__);
751 }
752
753 return rt5682_dev_suspend(dev);
754 }
755
rt5682_dev_resume(struct device * dev)756 static int __maybe_unused rt5682_dev_resume(struct device *dev)
757 {
758 struct sdw_slave *slave = dev_to_sdw_dev(dev);
759 struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
760 unsigned long time;
761
762 if (!rt5682->first_hw_init)
763 return 0;
764
765 if (!slave->unattach_request) {
766 mutex_lock(&rt5682->disable_irq_lock);
767 if (rt5682->disable_irq == true) {
768 sdw_write_no_pm(slave, SDW_SCP_INTMASK1, SDW_SCP_INT1_IMPL_DEF);
769 rt5682->disable_irq = false;
770 }
771 mutex_unlock(&rt5682->disable_irq_lock);
772 goto regmap_sync;
773 }
774
775 time = wait_for_completion_timeout(&slave->initialization_complete,
776 msecs_to_jiffies(RT5682_PROBE_TIMEOUT));
777 if (!time) {
778 dev_err(&slave->dev, "Initialization not complete, timed out\n");
779 sdw_show_ping_status(slave->bus, true);
780
781 return -ETIMEDOUT;
782 }
783
784 regmap_sync:
785 slave->unattach_request = 0;
786 regcache_cache_only(rt5682->sdw_regmap, false);
787 regcache_cache_only(rt5682->regmap, false);
788 regcache_sync(rt5682->regmap);
789
790 return 0;
791 }
792
793 static const struct dev_pm_ops rt5682_pm = {
794 SET_SYSTEM_SLEEP_PM_OPS(rt5682_dev_system_suspend, rt5682_dev_resume)
795 SET_RUNTIME_PM_OPS(rt5682_dev_suspend, rt5682_dev_resume, NULL)
796 };
797
798 static struct sdw_driver rt5682_sdw_driver = {
799 .driver = {
800 .name = "rt5682",
801 .owner = THIS_MODULE,
802 .pm = &rt5682_pm,
803 },
804 .probe = rt5682_sdw_probe,
805 .remove = rt5682_sdw_remove,
806 .ops = &rt5682_slave_ops,
807 .id_table = rt5682_id,
808 };
809 module_sdw_driver(rt5682_sdw_driver);
810
811 MODULE_DESCRIPTION("ASoC RT5682 driver SDW");
812 MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
813 MODULE_LICENSE("GPL v2");
814