1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // rt712-sdca-sdw.c -- rt712 SDCA ALSA SoC audio driver
4 //
5 // Copyright(c) 2023 Realtek Semiconductor Corp.
6 //
7 //
8
9 #include <linux/cleanup.h>
10 #include <linux/delay.h>
11 #include <linux/device.h>
12 #include <linux/module.h>
13 #include <linux/pm_runtime.h>
14 #include <linux/soundwire/sdw_registers.h>
15 #include "rt712-sdca.h"
16 #include "rt712-sdca-sdw.h"
17
rt712_sdca_readable_register(struct device * dev,unsigned int reg)18 static bool rt712_sdca_readable_register(struct device *dev, unsigned int reg)
19 {
20 switch (reg) {
21 case 0x004d:
22 case 0x201a ... 0x201f:
23 case 0x2029 ... 0x202a:
24 case 0x202d ... 0x2034:
25 case 0x2230 ... 0x2232:
26 case 0x2f01 ... 0x2f0a:
27 case 0x2f35 ... 0x2f36:
28 case 0x2f3a:
29 case 0x2f3d:
30 case 0x2f41:
31 case 0x2f50:
32 case 0x2f54:
33 case 0x2f58 ... 0x2f5d:
34 case 0x3201:
35 case 0x320c:
36 case 0x3301 ... 0x3303:
37 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_SELECTED_MODE, 0):
38 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_DETECTED_MODE, 0):
39 case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
40 SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
41 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
42 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
43 case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
44 case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
45 case RT712_BUF_ADDR_HID1 ... RT712_BUF_ADDR_HID2:
46 return true;
47 default:
48 return false;
49 }
50 }
51
rt712_sdca_volatile_register(struct device * dev,unsigned int reg)52 static bool rt712_sdca_volatile_register(struct device *dev, unsigned int reg)
53 {
54 switch (reg) {
55 case 0x004d:
56 case 0x201b:
57 case 0x201c:
58 case 0x201d:
59 case 0x201f:
60 case 0x202d ... 0x202f:
61 case 0x2230:
62 case 0x2f01:
63 case 0x2f35:
64 case 0x2f3a:
65 case 0x2f3d:
66 case 0x2f41:
67 case 0x320c:
68 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_GE49, RT712_SDCA_CTL_DETECTED_MODE, 0):
69 case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
70 SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT_HID01, RT712_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
71 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
72 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
73 case SDW_SDCA_CTL(FUNC_NUM_HID, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
74 case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT0, RT712_SDCA_CTL_FUNC_STATUS, 0):
75 case RT712_BUF_ADDR_HID1 ... RT712_BUF_ADDR_HID2:
76 return true;
77 default:
78 return false;
79 }
80 }
81
rt712_sdca_mbq_readable_register(struct device * dev,unsigned int reg)82 static bool rt712_sdca_mbq_readable_register(struct device *dev, unsigned int reg)
83 {
84 switch (reg) {
85 case 0x2000000 ... 0x200008e:
86 case 0x5300000 ... 0x530000e:
87 case 0x5400000 ... 0x540000e:
88 case 0x5600000 ... 0x5600008:
89 case 0x5700000 ... 0x570000d:
90 case 0x5800000 ... 0x5800021:
91 case 0x5900000 ... 0x5900028:
92 case 0x5a00000 ... 0x5a00009:
93 case 0x5b00000 ... 0x5b00051:
94 case 0x5c00000 ... 0x5c0009a:
95 case 0x5d00000 ... 0x5d00009:
96 case 0x5f00000 ... 0x5f00030:
97 case 0x6100000 ... 0x61000f1:
98 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU05, RT712_SDCA_CTL_FU_VOLUME, CH_01):
99 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU05, RT712_SDCA_CTL_FU_VOLUME, CH_02):
100 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU0F, RT712_SDCA_CTL_FU_VOLUME, CH_01):
101 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT712_SDCA_ENT_USER_FU0F, RT712_SDCA_CTL_FU_VOLUME, CH_02):
102 case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT_USER_FU06, RT712_SDCA_CTL_FU_VOLUME, CH_01):
103 case SDW_SDCA_CTL(FUNC_NUM_AMP, RT712_SDCA_ENT_USER_FU06, RT712_SDCA_CTL_FU_VOLUME, CH_02):
104 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01):
105 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_02):
106 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_03):
107 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_04):
108 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01):
109 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_02):
110 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_03):
111 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_04):
112 return true;
113 default:
114 return false;
115 }
116 }
117
rt712_sdca_mbq_volatile_register(struct device * dev,unsigned int reg)118 static bool rt712_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)
119 {
120 switch (reg) {
121 case 0x2000000:
122 case 0x200001a:
123 case 0x2000020:
124 case 0x2000024:
125 case 0x2000030:
126 case 0x2000046:
127 case 0x200008a:
128 case 0x5800000:
129 case 0x5800001:
130 case 0x6100008:
131 return true;
132 default:
133 return false;
134 }
135 }
136
137 static const struct regmap_config rt712_sdca_regmap = {
138 .reg_bits = 32,
139 .val_bits = 8,
140 .readable_reg = rt712_sdca_readable_register,
141 .volatile_reg = rt712_sdca_volatile_register,
142 .max_register = 0x44ffffff,
143 .reg_defaults = rt712_sdca_reg_defaults,
144 .num_reg_defaults = ARRAY_SIZE(rt712_sdca_reg_defaults),
145 .cache_type = REGCACHE_MAPLE,
146 .use_single_read = true,
147 .use_single_write = true,
148 };
149
150 static const struct regmap_config rt712_sdca_mbq_regmap = {
151 .name = "sdw-mbq",
152 .reg_bits = 32,
153 .val_bits = 16,
154 .readable_reg = rt712_sdca_mbq_readable_register,
155 .volatile_reg = rt712_sdca_mbq_volatile_register,
156 .max_register = 0x41000312,
157 .reg_defaults = rt712_sdca_mbq_defaults,
158 .num_reg_defaults = ARRAY_SIZE(rt712_sdca_mbq_defaults),
159 .cache_type = REGCACHE_MAPLE,
160 .use_single_read = true,
161 .use_single_write = true,
162 };
163
rt712_sdca_update_status(struct sdw_slave * slave,enum sdw_slave_status status)164 static int rt712_sdca_update_status(struct sdw_slave *slave,
165 enum sdw_slave_status status)
166 {
167 struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
168
169 if (status == SDW_SLAVE_UNATTACHED)
170 rt712->hw_init = false;
171
172 if (status == SDW_SLAVE_ATTACHED) {
173 if (rt712->hs_jack) {
174 /*
175 * Due to the SCP_SDCA_INTMASK will be cleared by any reset, and then
176 * if the device attached again, we will need to set the setting back.
177 * It could avoid losing the jack detection interrupt.
178 * This also could sync with the cache value as the rt712_sdca_jack_init set.
179 */
180 sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK1,
181 SDW_SCP_SDCA_INTMASK_SDCA_0);
182 sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK2,
183 SDW_SCP_SDCA_INTMASK_SDCA_8);
184 }
185 }
186
187 /*
188 * Perform initialization only if slave status is present and
189 * hw_init flag is false
190 */
191 if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)
192 return 0;
193
194 /* perform I/O transfers required for Slave initialization */
195 return rt712_sdca_io_init(&slave->dev, slave);
196 }
197
rt712_sdca_read_prop(struct sdw_slave * slave)198 static int rt712_sdca_read_prop(struct sdw_slave *slave)
199 {
200 struct sdw_slave_prop *prop = &slave->prop;
201 int nval;
202 int i, j;
203 u32 bit;
204 unsigned long addr;
205 struct sdw_dpn_prop *dpn;
206
207 sdw_slave_read_prop(slave);
208
209 prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
210 prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
211
212 prop->paging_support = true;
213
214 /* first we need to allocate memory for set bits in port lists */
215 prop->source_ports = BIT(8) | BIT(4); /* BITMAP: 100010000 */
216 prop->sink_ports = BIT(3) | BIT(1); /* BITMAP: 00001010 */
217
218 nval = hweight32(prop->source_ports);
219 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
220 sizeof(*prop->src_dpn_prop), GFP_KERNEL);
221 if (!prop->src_dpn_prop)
222 return -ENOMEM;
223
224 i = 0;
225 dpn = prop->src_dpn_prop;
226 addr = prop->source_ports;
227 for_each_set_bit(bit, &addr, 32) {
228 dpn[i].num = bit;
229 dpn[i].type = SDW_DPN_FULL;
230 dpn[i].simple_ch_prep_sm = true;
231 dpn[i].ch_prep_timeout = 10;
232 i++;
233 }
234
235 /* do this again for sink now */
236 nval = hweight32(prop->sink_ports);
237 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
238 sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
239 if (!prop->sink_dpn_prop)
240 return -ENOMEM;
241
242 j = 0;
243 dpn = prop->sink_dpn_prop;
244 addr = prop->sink_ports;
245 for_each_set_bit(bit, &addr, 32) {
246 dpn[j].num = bit;
247 dpn[j].type = SDW_DPN_FULL;
248 dpn[j].simple_ch_prep_sm = true;
249 dpn[j].ch_prep_timeout = 10;
250 j++;
251 }
252
253 /* set the timeout values */
254 prop->clk_stop_timeout = 1380;
255
256 /* wake-up event */
257 prop->wake_capable = 1;
258
259 return 0;
260 }
261
rt712_sdca_interrupt_callback(struct sdw_slave * slave,struct sdw_slave_intr_status * status)262 static int rt712_sdca_interrupt_callback(struct sdw_slave *slave,
263 struct sdw_slave_intr_status *status)
264 {
265 struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
266 int ret, stat;
267 int count = 0, retry = 3;
268 unsigned int sdca_cascade, scp_sdca_stat1, scp_sdca_stat2 = 0;
269
270 dev_dbg(&slave->dev,
271 "%s control_port_stat=%x, sdca_cascade=%x", __func__,
272 status->control_port, status->sdca_cascade);
273
274 if (cancel_delayed_work_sync(&rt712->jack_detect_work)) {
275 dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);
276 /* avoid the HID owner doesn't change to device */
277 if (rt712->scp_sdca_stat2)
278 scp_sdca_stat2 = rt712->scp_sdca_stat2;
279 }
280
281 /*
282 * The critical section below intentionally protects a rather large piece of code.
283 * We don't want to allow the system suspend to disable an interrupt while we are
284 * processing it, which could be problematic given the quirky SoundWire interrupt
285 * scheme. We do want however to prevent new workqueues from being scheduled if
286 * the disable_irq flag was set during system suspend.
287 */
288 mutex_lock(&rt712->disable_irq_lock);
289
290 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
291 if (ret < 0)
292 goto io_error;
293 rt712->scp_sdca_stat1 = ret;
294 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
295 if (ret < 0)
296 goto io_error;
297 rt712->scp_sdca_stat2 = ret;
298 if (scp_sdca_stat2)
299 rt712->scp_sdca_stat2 |= scp_sdca_stat2;
300
301 do {
302 /* clear flag */
303 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
304 if (ret < 0)
305 goto io_error;
306 if (ret & SDW_SCP_SDCA_INTMASK_SDCA_0) {
307 ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT1,
308 SDW_SCP_SDCA_INTMASK_SDCA_0);
309 if (ret < 0)
310 goto io_error;
311 }
312 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
313 if (ret < 0)
314 goto io_error;
315 if (ret & SDW_SCP_SDCA_INTMASK_SDCA_8) {
316 ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT2,
317 SDW_SCP_SDCA_INTMASK_SDCA_8);
318 if (ret < 0)
319 goto io_error;
320 }
321
322 /* check if flag clear or not */
323 ret = sdw_read_no_pm(rt712->slave, SDW_DP0_INT);
324 if (ret < 0)
325 goto io_error;
326 sdca_cascade = ret & SDW_DP0_SDCA_CASCADE;
327
328 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);
329 if (ret < 0)
330 goto io_error;
331 scp_sdca_stat1 = ret & SDW_SCP_SDCA_INTMASK_SDCA_0;
332
333 ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);
334 if (ret < 0)
335 goto io_error;
336 scp_sdca_stat2 = ret & SDW_SCP_SDCA_INTMASK_SDCA_8;
337
338 stat = scp_sdca_stat1 || scp_sdca_stat2 || sdca_cascade;
339
340 count++;
341 } while (stat != 0 && count < retry);
342
343 if (stat)
344 dev_warn(&slave->dev,
345 "%s scp_sdca_stat1=0x%x, scp_sdca_stat2=0x%x\n", __func__,
346 rt712->scp_sdca_stat1, rt712->scp_sdca_stat2);
347
348 if (status->sdca_cascade && !rt712->disable_irq)
349 mod_delayed_work(system_power_efficient_wq,
350 &rt712->jack_detect_work, msecs_to_jiffies(30));
351
352 mutex_unlock(&rt712->disable_irq_lock);
353
354 return 0;
355
356 io_error:
357 mutex_unlock(&rt712->disable_irq_lock);
358 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
359 return ret;
360 }
361
362 static const struct sdw_slave_ops rt712_sdca_slave_ops = {
363 .read_prop = rt712_sdca_read_prop,
364 .interrupt_callback = rt712_sdca_interrupt_callback,
365 .update_status = rt712_sdca_update_status,
366 };
367
rt712_sdca_sdw_probe(struct sdw_slave * slave,const struct sdw_device_id * id)368 static int rt712_sdca_sdw_probe(struct sdw_slave *slave,
369 const struct sdw_device_id *id)
370 {
371 struct regmap *regmap, *mbq_regmap;
372
373 /* Regmap Initialization */
374 mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_mbq_regmap);
375 if (IS_ERR(mbq_regmap))
376 return PTR_ERR(mbq_regmap);
377
378 regmap = devm_regmap_init_sdw(slave, &rt712_sdca_regmap);
379 if (IS_ERR(regmap))
380 return PTR_ERR(regmap);
381
382 return rt712_sdca_init(&slave->dev, regmap, mbq_regmap, slave);
383 }
384
rt712_sdca_sdw_remove(struct sdw_slave * slave)385 static void rt712_sdca_sdw_remove(struct sdw_slave *slave)
386 {
387 struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);
388
389 if (rt712->hw_init) {
390 cancel_delayed_work_sync(&rt712->jack_detect_work);
391 cancel_delayed_work_sync(&rt712->jack_btn_check_work);
392 }
393
394 pm_runtime_disable(&slave->dev);
395
396 mutex_destroy(&rt712->calibrate_mutex);
397 mutex_destroy(&rt712->disable_irq_lock);
398 }
399
400 static const struct sdw_device_id rt712_sdca_id[] = {
401 SDW_SLAVE_ENTRY_EXT(0x025d, 0x712, 0x3, 0x1, 0),
402 SDW_SLAVE_ENTRY_EXT(0x025d, 0x713, 0x3, 0x1, 0),
403 SDW_SLAVE_ENTRY_EXT(0x025d, 0x716, 0x3, 0x1, 0),
404 SDW_SLAVE_ENTRY_EXT(0x025d, 0x717, 0x3, 0x1, 0),
405 {},
406 };
407 MODULE_DEVICE_TABLE(sdw, rt712_sdca_id);
408
rt712_sdca_dev_suspend(struct device * dev)409 static int rt712_sdca_dev_suspend(struct device *dev)
410 {
411 struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);
412
413 if (!rt712->hw_init)
414 return 0;
415
416 cancel_delayed_work_sync(&rt712->jack_detect_work);
417 cancel_delayed_work_sync(&rt712->jack_btn_check_work);
418
419 regcache_cache_only(rt712->regmap, true);
420 regcache_cache_only(rt712->mbq_regmap, true);
421
422 return 0;
423 }
424
rt712_sdca_dev_system_suspend(struct device * dev)425 static int rt712_sdca_dev_system_suspend(struct device *dev)
426 {
427 struct rt712_sdca_priv *rt712_sdca = dev_get_drvdata(dev);
428 struct sdw_slave *slave = dev_to_sdw_dev(dev);
429 int ret1, ret2;
430
431 if (!rt712_sdca->hw_init)
432 return 0;
433
434 /*
435 * prevent new interrupts from being handled after the
436 * deferred work completes and before the parent disables
437 * interrupts on the link
438 */
439 scoped_guard(mutex, &rt712_sdca->disable_irq_lock) {
440 rt712_sdca->disable_irq = true;
441 ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,
442 SDW_SCP_SDCA_INTMASK_SDCA_0, 0);
443 ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,
444 SDW_SCP_SDCA_INTMASK_SDCA_8, 0);
445 }
446
447 if (ret1 < 0 || ret2 < 0) {
448 /* log but don't prevent suspend from happening */
449 dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);
450 }
451
452 return rt712_sdca_dev_suspend(dev);
453 }
454
455 #define RT712_PROBE_TIMEOUT 5000
456
rt712_sdca_dev_resume(struct device * dev)457 static int rt712_sdca_dev_resume(struct device *dev)
458 {
459 struct sdw_slave *slave = dev_to_sdw_dev(dev);
460 struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);
461 int ret;
462
463 if (!rt712->first_hw_init)
464 return 0;
465
466 if (!slave->unattach_request) {
467 scoped_guard(mutex, &rt712->disable_irq_lock) {
468 if (rt712->disable_irq) {
469 sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1,
470 SDW_SCP_SDCA_INTMASK_SDCA_0);
471 sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2,
472 SDW_SCP_SDCA_INTMASK_SDCA_8);
473 rt712->disable_irq = false;
474 }
475 }
476 }
477
478 ret = sdw_slave_wait_for_init(slave, RT712_PROBE_TIMEOUT);
479 if (ret) {
480 sdw_show_ping_status(slave->bus, true);
481 return ret;
482 }
483
484 regcache_cache_only(rt712->regmap, false);
485 ret = regcache_sync(rt712->regmap);
486 if (ret) {
487 regcache_cache_only(rt712->regmap, true);
488 return ret;
489 }
490
491 regcache_cache_only(rt712->mbq_regmap, false);
492 ret = regcache_sync(rt712->mbq_regmap);
493 if (ret) {
494 regcache_cache_only(rt712->mbq_regmap, true);
495 regcache_cache_only(rt712->regmap, true);
496 return ret;
497 }
498
499 return 0;
500 }
501
502 static const struct dev_pm_ops rt712_sdca_pm = {
503 SYSTEM_SLEEP_PM_OPS(rt712_sdca_dev_system_suspend, rt712_sdca_dev_resume)
504 RUNTIME_PM_OPS(rt712_sdca_dev_suspend, rt712_sdca_dev_resume, NULL)
505 };
506
507 static struct sdw_driver rt712_sdca_sdw_driver = {
508 .driver = {
509 .name = "rt712-sdca",
510 .pm = pm_ptr(&rt712_sdca_pm),
511 },
512 .probe = rt712_sdca_sdw_probe,
513 .remove = rt712_sdca_sdw_remove,
514 .ops = &rt712_sdca_slave_ops,
515 .id_table = rt712_sdca_id,
516 };
517 module_sdw_driver(rt712_sdca_sdw_driver);
518
519 MODULE_DESCRIPTION("ASoC RT712 SDCA SDW driver");
520 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
521 MODULE_LICENSE("GPL");
522 MODULE_IMPORT_NS("SND_SOC_SDCA");
523