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