1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // rt712-sdca-dmic.c -- rt712 SDCA DMIC ALSA SoC audio driver
4 //
5 // Copyright(c) 2023 Realtek Semiconductor Corp.
6 //
7 //
8 
9 #include <linux/module.h>
10 #include <linux/mod_devicetable.h>
11 #include <linux/pm_runtime.h>
12 #include <linux/soundwire/sdw_registers.h>
13 #include <linux/slab.h>
14 #include <sound/core.h>
15 #include <sound/pcm.h>
16 #include <sound/pcm_params.h>
17 #include <sound/tlv.h>
18 #include "rt712-sdca.h"
19 #include "rt712-sdca-dmic.h"
20 
rt712_sdca_dmic_readable_register(struct device * dev,unsigned int reg)21 static bool rt712_sdca_dmic_readable_register(struct device *dev, unsigned int reg)
22 {
23 	switch (reg) {
24 	case 0x201a ... 0x201f:
25 	case 0x2029 ... 0x202a:
26 	case 0x202d ... 0x2034:
27 	case 0x2230 ... 0x2232:
28 	case 0x2f01 ... 0x2f0a:
29 	case 0x2f35 ... 0x2f36:
30 	case 0x2f52:
31 	case 0x2f58 ... 0x2f59:
32 	case 0x3201:
33 	case 0x320c:
34 		return true;
35 	default:
36 		return false;
37 	}
38 }
39 
rt712_sdca_dmic_volatile_register(struct device * dev,unsigned int reg)40 static bool rt712_sdca_dmic_volatile_register(struct device *dev, unsigned int reg)
41 {
42 	switch (reg) {
43 	case 0x201b:
44 	case 0x201c:
45 	case 0x201d:
46 	case 0x201f:
47 	case 0x202d ... 0x202f:
48 	case 0x2230:
49 	case 0x2f01:
50 	case 0x2f35:
51 	case 0x320c:
52 		return true;
53 	default:
54 		return false;
55 	}
56 }
57 
rt712_sdca_dmic_mbq_readable_register(struct device * dev,unsigned int reg)58 static bool rt712_sdca_dmic_mbq_readable_register(struct device *dev, unsigned int reg)
59 {
60 	switch (reg) {
61 	case 0x2000000 ... 0x200008e:
62 	case 0x5300000 ... 0x530000e:
63 	case 0x5400000 ... 0x540000e:
64 	case 0x5600000 ... 0x5600008:
65 	case 0x5700000 ... 0x570000d:
66 	case 0x5800000 ... 0x5800021:
67 	case 0x5900000 ... 0x5900028:
68 	case 0x5a00000 ... 0x5a00009:
69 	case 0x5b00000 ... 0x5b00051:
70 	case 0x5c00000 ... 0x5c0009a:
71 	case 0x5d00000 ... 0x5d00009:
72 	case 0x5f00000 ... 0x5f00030:
73 	case 0x6100000 ... 0x6100068:
74 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01):
75 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_02):
76 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_03):
77 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_04):
78 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01):
79 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_02):
80 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_03):
81 	case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_04):
82 		return true;
83 	default:
84 		return false;
85 	}
86 }
87 
rt712_sdca_dmic_mbq_volatile_register(struct device * dev,unsigned int reg)88 static bool rt712_sdca_dmic_mbq_volatile_register(struct device *dev, unsigned int reg)
89 {
90 	switch (reg) {
91 	case 0x2000000:
92 	case 0x200001a:
93 	case 0x2000024:
94 	case 0x2000046:
95 	case 0x200008a:
96 	case 0x5800000:
97 	case 0x5800001:
98 	case 0x6100008:
99 		return true;
100 	default:
101 		return false;
102 	}
103 }
104 
105 static const struct regmap_config rt712_sdca_dmic_regmap = {
106 	.reg_bits = 32,
107 	.val_bits = 8,
108 	.readable_reg = rt712_sdca_dmic_readable_register,
109 	.volatile_reg = rt712_sdca_dmic_volatile_register,
110 	.max_register = 0x40981300,
111 	.reg_defaults = rt712_sdca_dmic_reg_defaults,
112 	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_dmic_reg_defaults),
113 	.cache_type = REGCACHE_MAPLE,
114 	.use_single_read = true,
115 	.use_single_write = true,
116 };
117 
118 static const struct regmap_config rt712_sdca_dmic_mbq_regmap = {
119 	.name = "sdw-mbq",
120 	.reg_bits = 32,
121 	.val_bits = 16,
122 	.readable_reg = rt712_sdca_dmic_mbq_readable_register,
123 	.volatile_reg = rt712_sdca_dmic_mbq_volatile_register,
124 	.max_register = 0x40800f14,
125 	.reg_defaults = rt712_sdca_dmic_mbq_defaults,
126 	.num_reg_defaults = ARRAY_SIZE(rt712_sdca_dmic_mbq_defaults),
127 	.cache_type = REGCACHE_MAPLE,
128 	.use_single_read = true,
129 	.use_single_write = true,
130 };
131 
rt712_sdca_dmic_index_write(struct rt712_sdca_dmic_priv * rt712,unsigned int nid,unsigned int reg,unsigned int value)132 static int rt712_sdca_dmic_index_write(struct rt712_sdca_dmic_priv *rt712,
133 		unsigned int nid, unsigned int reg, unsigned int value)
134 {
135 	int ret;
136 	struct regmap *regmap = rt712->mbq_regmap;
137 	unsigned int addr = (nid << 20) | reg;
138 
139 	ret = regmap_write(regmap, addr, value);
140 	if (ret < 0)
141 		dev_err(&rt712->slave->dev,
142 			"Failed to set private value: %06x <= %04x ret=%d\n",
143 			addr, value, ret);
144 
145 	return ret;
146 }
147 
rt712_sdca_dmic_index_read(struct rt712_sdca_dmic_priv * rt712,unsigned int nid,unsigned int reg,unsigned int * value)148 static int rt712_sdca_dmic_index_read(struct rt712_sdca_dmic_priv *rt712,
149 		unsigned int nid, unsigned int reg, unsigned int *value)
150 {
151 	int ret;
152 	struct regmap *regmap = rt712->mbq_regmap;
153 	unsigned int addr = (nid << 20) | reg;
154 
155 	ret = regmap_read(regmap, addr, value);
156 	if (ret < 0)
157 		dev_err(&rt712->slave->dev,
158 			"Failed to get private value: %06x => %04x ret=%d\n",
159 			addr, *value, ret);
160 
161 	return ret;
162 }
163 
rt712_sdca_dmic_index_update_bits(struct rt712_sdca_dmic_priv * rt712,unsigned int nid,unsigned int reg,unsigned int mask,unsigned int val)164 static int rt712_sdca_dmic_index_update_bits(struct rt712_sdca_dmic_priv *rt712,
165 	unsigned int nid, unsigned int reg, unsigned int mask, unsigned int val)
166 {
167 	unsigned int tmp;
168 	int ret;
169 
170 	ret = rt712_sdca_dmic_index_read(rt712, nid, reg, &tmp);
171 	if (ret < 0)
172 		return ret;
173 
174 	set_mask_bits(&tmp, mask, val);
175 	return rt712_sdca_dmic_index_write(rt712, nid, reg, tmp);
176 }
177 
rt712_sdca_dmic_io_init(struct device * dev,struct sdw_slave * slave)178 static int rt712_sdca_dmic_io_init(struct device *dev, struct sdw_slave *slave)
179 {
180 	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);
181 
182 	if (rt712->hw_init)
183 		return 0;
184 
185 	regcache_cache_only(rt712->regmap, false);
186 	regcache_cache_only(rt712->mbq_regmap, false);
187 	if (rt712->first_hw_init) {
188 		regcache_cache_bypass(rt712->regmap, true);
189 		regcache_cache_bypass(rt712->mbq_regmap, true);
190 	} else {
191 		/*
192 		 * PM runtime status is marked as 'active' only when a Slave reports as Attached
193 		 */
194 
195 		/* update count of parent 'active' children */
196 		pm_runtime_set_active(&slave->dev);
197 	}
198 
199 	pm_runtime_get_noresume(&slave->dev);
200 
201 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
202 		RT712_ADC0A_08_PDE_FLOAT_CTL, 0x1112);
203 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
204 		RT712_ADC0B_11_PDE_FLOAT_CTL, 0x1111);
205 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
206 		RT712_DMIC1_2_PDE_FLOAT_CTL, 0x1111);
207 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
208 		RT712_I2S_IN_OUT_PDE_FLOAT_CTL, 0x1155);
209 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
210 		RT712_DMIC_ENT_FLOAT_CTL, 0x2626);
211 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
212 		RT712_ADC_ENT_FLOAT_CTL, 0x1e19);
213 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
214 		RT712_DMIC_GAIN_ENT_FLOAT_CTL0, 0x1515);
215 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
216 		RT712_ADC_VOL_CH_FLOAT_CTL2, 0x0304);
217 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
218 		RT712_DMIC_GAIN_ENT_FLOAT_CTL2, 0x0304);
219 	rt712_sdca_dmic_index_write(rt712, RT712_VENDOR_HDA_CTL,
220 		RT712_HDA_LEGACY_CONFIG_CTL0, 0x0050);
221 	regmap_write(rt712->regmap,
222 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_IT26, RT712_SDCA_CTL_VENDOR_DEF, 0), 0x01);
223 	rt712_sdca_dmic_index_write(rt712, RT712_ULTRA_SOUND_DET,
224 		RT712_ULTRA_SOUND_DETECTOR6, 0x3200);
225 	regmap_write(rt712->regmap, RT712_RC_CAL, 0x23);
226 	regmap_write(rt712->regmap, 0x2f52, 0x00);
227 
228 	if (rt712->first_hw_init) {
229 		regcache_cache_bypass(rt712->regmap, false);
230 		regcache_mark_dirty(rt712->regmap);
231 		regcache_cache_bypass(rt712->mbq_regmap, false);
232 		regcache_mark_dirty(rt712->mbq_regmap);
233 	} else
234 		rt712->first_hw_init = true;
235 
236 	/* Mark Slave initialization complete */
237 	rt712->hw_init = true;
238 
239 	pm_runtime_mark_last_busy(&slave->dev);
240 	pm_runtime_put_autosuspend(&slave->dev);
241 
242 	dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
243 	return 0;
244 }
245 
rt712_sdca_dmic_set_gain_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)246 static int rt712_sdca_dmic_set_gain_get(struct snd_kcontrol *kcontrol,
247 		struct snd_ctl_elem_value *ucontrol)
248 {
249 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
250 	struct rt712_sdca_priv *rt712 = snd_soc_component_get_drvdata(component);
251 	struct rt712_sdca_dmic_kctrl_priv *p =
252 		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
253 	unsigned int regvalue, ctl, i;
254 	unsigned int adc_vol_flag = 0;
255 	const unsigned int interval_offset = 0xc0;
256 
257 	if (strstr(ucontrol->id.name, "FU1E Capture Volume"))
258 		adc_vol_flag = 1;
259 
260 	/* check all channels */
261 	for (i = 0; i < p->count; i++) {
262 		regmap_read(rt712->mbq_regmap, p->reg_base + i, &regvalue);
263 
264 		if (!adc_vol_flag) /* boost gain */
265 			ctl = regvalue / 0x0a00;
266 		else { /* ADC gain */
267 			if (adc_vol_flag)
268 				ctl = p->max - (((0x1e00 - regvalue) & 0xffff) / interval_offset);
269 			else
270 				ctl = p->max - (((0 - regvalue) & 0xffff) / interval_offset);
271 		}
272 
273 		ucontrol->value.integer.value[i] = ctl;
274 	}
275 
276 	return 0;
277 }
278 
rt712_sdca_dmic_set_gain_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)279 static int rt712_sdca_dmic_set_gain_put(struct snd_kcontrol *kcontrol,
280 		struct snd_ctl_elem_value *ucontrol)
281 {
282 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
283 	struct rt712_sdca_dmic_kctrl_priv *p =
284 		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
285 	struct rt712_sdca_priv *rt712 = snd_soc_component_get_drvdata(component);
286 	unsigned int gain_val[4];
287 	unsigned int i, adc_vol_flag = 0, changed = 0;
288 	unsigned int regvalue[4];
289 	const unsigned int interval_offset = 0xc0;
290 	int err;
291 
292 	if (strstr(ucontrol->id.name, "FU1E Capture Volume"))
293 		adc_vol_flag = 1;
294 
295 	/* check all channels */
296 	for (i = 0; i < p->count; i++) {
297 		regmap_read(rt712->mbq_regmap, p->reg_base + i, &regvalue[i]);
298 
299 		gain_val[i] = ucontrol->value.integer.value[i];
300 		if (gain_val[i] > p->max)
301 			gain_val[i] = p->max;
302 
303 		if (!adc_vol_flag) /* boost gain */
304 			gain_val[i] = gain_val[i] * 0x0a00;
305 		else { /* ADC gain */
306 			gain_val[i] = 0x1e00 - ((p->max - gain_val[i]) * interval_offset);
307 			gain_val[i] &= 0xffff;
308 		}
309 
310 		if (regvalue[i] != gain_val[i])
311 			changed = 1;
312 	}
313 
314 	if (!changed)
315 		return 0;
316 
317 	for (i = 0; i < p->count; i++) {
318 		err = regmap_write(rt712->mbq_regmap, p->reg_base + i, gain_val[i]);
319 		if (err < 0)
320 			dev_err(&rt712->slave->dev, "0x%08x can't be set\n", p->reg_base + i);
321 	}
322 
323 	return changed;
324 }
325 
rt712_sdca_set_fu1e_capture_ctl(struct rt712_sdca_dmic_priv * rt712)326 static int rt712_sdca_set_fu1e_capture_ctl(struct rt712_sdca_dmic_priv *rt712)
327 {
328 	int err, i;
329 	unsigned int ch_mute;
330 
331 	for (i = 0; i < ARRAY_SIZE(rt712->fu1e_mixer_mute); i++) {
332 		ch_mute = (rt712->fu1e_dapm_mute || rt712->fu1e_mixer_mute[i]) ? 0x01 : 0x00;
333 		err = regmap_write(rt712->regmap,
334 				SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E,
335 				RT712_SDCA_CTL_FU_MUTE, CH_01) + i, ch_mute);
336 		if (err < 0)
337 			return err;
338 	}
339 
340 	return 0;
341 }
342 
rt712_sdca_dmic_fu1e_capture_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)343 static int rt712_sdca_dmic_fu1e_capture_get(struct snd_kcontrol *kcontrol,
344 			struct snd_ctl_elem_value *ucontrol)
345 {
346 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
347 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
348 	struct rt712_sdca_dmic_kctrl_priv *p =
349 		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
350 	unsigned int i;
351 
352 	for (i = 0; i < p->count; i++)
353 		ucontrol->value.integer.value[i] = !rt712->fu1e_mixer_mute[i];
354 
355 	return 0;
356 }
357 
rt712_sdca_dmic_fu1e_capture_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)358 static int rt712_sdca_dmic_fu1e_capture_put(struct snd_kcontrol *kcontrol,
359 			struct snd_ctl_elem_value *ucontrol)
360 {
361 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
362 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
363 	struct rt712_sdca_dmic_kctrl_priv *p =
364 		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
365 	int err, changed = 0, i;
366 
367 	for (i = 0; i < p->count; i++) {
368 		if (rt712->fu1e_mixer_mute[i] != !ucontrol->value.integer.value[i])
369 			changed = 1;
370 		rt712->fu1e_mixer_mute[i] = !ucontrol->value.integer.value[i];
371 	}
372 
373 	err = rt712_sdca_set_fu1e_capture_ctl(rt712);
374 	if (err < 0)
375 		return err;
376 
377 	return changed;
378 }
379 
rt712_sdca_fu_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)380 static int rt712_sdca_fu_info(struct snd_kcontrol *kcontrol,
381 	struct snd_ctl_elem_info *uinfo)
382 {
383 	struct rt712_sdca_dmic_kctrl_priv *p =
384 		(struct rt712_sdca_dmic_kctrl_priv *)kcontrol->private_value;
385 
386 	if (p->max == 1)
387 		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
388 	else
389 		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
390 	uinfo->count = p->count;
391 	uinfo->value.integer.min = 0;
392 	uinfo->value.integer.max = p->max;
393 	return 0;
394 }
395 
396 #define RT712_SDCA_PR_VALUE(xreg_base, xcount, xmax, xinvert) \
397 	((unsigned long)&(struct rt712_sdca_dmic_kctrl_priv) \
398 		{.reg_base = xreg_base, .count = xcount, .max = xmax, \
399 		.invert = xinvert})
400 
401 #define RT712_SDCA_FU_CTRL(xname, reg_base, xmax, xinvert, xcount) \
402 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
403 	.info = rt712_sdca_fu_info, \
404 	.get = rt712_sdca_dmic_fu1e_capture_get, \
405 	.put = rt712_sdca_dmic_fu1e_capture_put, \
406 	.private_value = RT712_SDCA_PR_VALUE(reg_base, xcount, xmax, xinvert)}
407 
408 #define RT712_SDCA_EXT_TLV(xname, reg_base, xhandler_get,\
409 	 xhandler_put, xcount, xmax, tlv_array) \
410 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
411 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
412 		 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
413 	.tlv.p = (tlv_array), \
414 	.info = rt712_sdca_fu_info, \
415 	.get = xhandler_get, .put = xhandler_put, \
416 	.private_value = RT712_SDCA_PR_VALUE(reg_base, xcount, xmax, 0) }
417 
418 static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0);
419 static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);
420 
421 static const struct snd_kcontrol_new rt712_sdca_dmic_snd_controls[] = {
422 	RT712_SDCA_FU_CTRL("FU1E Capture Switch",
423 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_MUTE, CH_01),
424 		1, 1, 4),
425 	RT712_SDCA_EXT_TLV("FU1E Capture Volume",
426 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_USER_FU1E, RT712_SDCA_CTL_FU_VOLUME, CH_01),
427 		rt712_sdca_dmic_set_gain_get, rt712_sdca_dmic_set_gain_put, 4, 0x3f, in_vol_tlv),
428 	RT712_SDCA_EXT_TLV("FU15 Boost Volume",
429 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PLATFORM_FU15, RT712_SDCA_CTL_FU_CH_GAIN, CH_01),
430 		rt712_sdca_dmic_set_gain_get, rt712_sdca_dmic_set_gain_put, 4, 3, mic_vol_tlv),
431 };
432 
rt712_sdca_dmic_mux_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)433 static int rt712_sdca_dmic_mux_get(struct snd_kcontrol *kcontrol,
434 			struct snd_ctl_elem_value *ucontrol)
435 {
436 	struct snd_soc_component *component =
437 		snd_soc_dapm_kcontrol_component(kcontrol);
438 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
439 	unsigned int val = 0, mask_sft;
440 
441 	if (strstr(ucontrol->id.name, "ADC 25 Mux"))
442 		mask_sft = 8;
443 	else if (strstr(ucontrol->id.name, "ADC 26 Mux"))
444 		mask_sft = 4;
445 	else
446 		return -EINVAL;
447 
448 	rt712_sdca_dmic_index_read(rt712, RT712_VENDOR_HDA_CTL,
449 		RT712_HDA_LEGACY_MUX_CTL0, &val);
450 
451 	ucontrol->value.enumerated.item[0] = (val >> mask_sft) & 0x7;
452 
453 	return 0;
454 }
455 
rt712_sdca_dmic_mux_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)456 static int rt712_sdca_dmic_mux_put(struct snd_kcontrol *kcontrol,
457 			struct snd_ctl_elem_value *ucontrol)
458 {
459 	struct snd_soc_component *component =
460 		snd_soc_dapm_kcontrol_component(kcontrol);
461 	struct snd_soc_dapm_context *dapm =
462 		snd_soc_dapm_kcontrol_dapm(kcontrol);
463 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
464 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
465 	unsigned int *item = ucontrol->value.enumerated.item;
466 	unsigned int val, val2 = 0, change, mask_sft;
467 
468 	if (item[0] >= e->items)
469 		return -EINVAL;
470 
471 	if (strstr(ucontrol->id.name, "ADC 25 Mux"))
472 		mask_sft = 8;
473 	else if (strstr(ucontrol->id.name, "ADC 26 Mux"))
474 		mask_sft = 4;
475 	else
476 		return -EINVAL;
477 
478 	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
479 
480 	rt712_sdca_dmic_index_read(rt712, RT712_VENDOR_HDA_CTL,
481 		RT712_HDA_LEGACY_MUX_CTL0, &val2);
482 	val2 = (0x7 << mask_sft) & val2;
483 
484 	if (val == val2)
485 		change = 0;
486 	else
487 		change = 1;
488 
489 	if (change)
490 		rt712_sdca_dmic_index_update_bits(rt712, RT712_VENDOR_HDA_CTL,
491 			RT712_HDA_LEGACY_MUX_CTL0, 0x7 << mask_sft,
492 			val << mask_sft);
493 
494 	snd_soc_dapm_mux_update_power(dapm, kcontrol,
495 		item[0], e, NULL);
496 
497 	return change;
498 }
499 
500 static const char * const adc_mux_text[] = {
501 	"DMIC1",
502 	"DMIC2",
503 };
504 
505 static SOC_ENUM_SINGLE_DECL(
506 	rt712_adc25_enum, SND_SOC_NOPM, 0, adc_mux_text);
507 
508 static SOC_ENUM_SINGLE_DECL(
509 	rt712_adc26_enum, SND_SOC_NOPM, 0, adc_mux_text);
510 
511 static const struct snd_kcontrol_new rt712_sdca_dmic_adc25_mux =
512 	SOC_DAPM_ENUM_EXT("ADC 25 Mux", rt712_adc25_enum,
513 			rt712_sdca_dmic_mux_get, rt712_sdca_dmic_mux_put);
514 
515 static const struct snd_kcontrol_new rt712_sdca_dmic_adc26_mux =
516 	SOC_DAPM_ENUM_EXT("ADC 26 Mux", rt712_adc26_enum,
517 			rt712_sdca_dmic_mux_get, rt712_sdca_dmic_mux_put);
518 
rt712_sdca_dmic_fu1e_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)519 static int rt712_sdca_dmic_fu1e_event(struct snd_soc_dapm_widget *w,
520 	struct snd_kcontrol *kcontrol, int event)
521 {
522 	struct snd_soc_component *component =
523 		snd_soc_dapm_to_component(w->dapm);
524 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
525 
526 	switch (event) {
527 	case SND_SOC_DAPM_POST_PMU:
528 		rt712->fu1e_dapm_mute = false;
529 		rt712_sdca_set_fu1e_capture_ctl(rt712);
530 		break;
531 	case SND_SOC_DAPM_PRE_PMD:
532 		rt712->fu1e_dapm_mute = true;
533 		rt712_sdca_set_fu1e_capture_ctl(rt712);
534 		break;
535 	}
536 	return 0;
537 }
538 
rt712_sdca_dmic_pde11_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)539 static int rt712_sdca_dmic_pde11_event(struct snd_soc_dapm_widget *w,
540 	struct snd_kcontrol *kcontrol, int event)
541 {
542 	struct snd_soc_component *component =
543 		snd_soc_dapm_to_component(w->dapm);
544 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
545 	unsigned char ps0 = 0x0, ps3 = 0x3;
546 
547 	switch (event) {
548 	case SND_SOC_DAPM_POST_PMU:
549 		regmap_write(rt712->regmap,
550 			SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PDE11,
551 				RT712_SDCA_CTL_REQ_POWER_STATE, 0),
552 				ps0);
553 		break;
554 	case SND_SOC_DAPM_PRE_PMD:
555 		regmap_write(rt712->regmap,
556 			SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_PDE11,
557 				RT712_SDCA_CTL_REQ_POWER_STATE, 0),
558 				ps3);
559 		break;
560 	}
561 	return 0;
562 }
563 
564 static const struct snd_soc_dapm_widget rt712_sdca_dmic_dapm_widgets[] = {
565 	SND_SOC_DAPM_INPUT("DMIC1"),
566 	SND_SOC_DAPM_INPUT("DMIC2"),
567 
568 	SND_SOC_DAPM_SUPPLY("PDE 11", SND_SOC_NOPM, 0, 0,
569 		rt712_sdca_dmic_pde11_event,
570 		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
571 
572 	SND_SOC_DAPM_ADC_E("FU 1E", NULL, SND_SOC_NOPM, 0, 0,
573 		rt712_sdca_dmic_fu1e_event,
574 		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
575 	SND_SOC_DAPM_MUX("ADC 25 Mux", SND_SOC_NOPM, 0, 0,
576 		&rt712_sdca_dmic_adc25_mux),
577 	SND_SOC_DAPM_MUX("ADC 26 Mux", SND_SOC_NOPM, 0, 0,
578 		&rt712_sdca_dmic_adc26_mux),
579 
580 	SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
581 };
582 
583 static const struct snd_soc_dapm_route rt712_sdca_dmic_audio_map[] = {
584 	{"DP2TX", NULL, "FU 1E"},
585 
586 	{"FU 1E", NULL, "PDE 11"},
587 	{"FU 1E", NULL, "ADC 25 Mux"},
588 	{"FU 1E", NULL, "ADC 26 Mux"},
589 	{"ADC 25 Mux", "DMIC1", "DMIC1"},
590 	{"ADC 25 Mux", "DMIC2", "DMIC2"},
591 	{"ADC 26 Mux", "DMIC1", "DMIC1"},
592 	{"ADC 26 Mux", "DMIC2", "DMIC2"},
593 };
594 
rt712_sdca_dmic_probe(struct snd_soc_component * component)595 static int rt712_sdca_dmic_probe(struct snd_soc_component *component)
596 {
597 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
598 	int ret;
599 
600 	rt712->component = component;
601 
602 	if (!rt712->first_hw_init)
603 		return 0;
604 
605 	ret = pm_runtime_resume(component->dev);
606 	if (ret < 0 && ret != -EACCES)
607 		return ret;
608 
609 	return 0;
610 }
611 
612 static const struct snd_soc_component_driver soc_sdca_dev_rt712_dmic = {
613 	.probe = rt712_sdca_dmic_probe,
614 	.controls = rt712_sdca_dmic_snd_controls,
615 	.num_controls = ARRAY_SIZE(rt712_sdca_dmic_snd_controls),
616 	.dapm_widgets = rt712_sdca_dmic_dapm_widgets,
617 	.num_dapm_widgets = ARRAY_SIZE(rt712_sdca_dmic_dapm_widgets),
618 	.dapm_routes = rt712_sdca_dmic_audio_map,
619 	.num_dapm_routes = ARRAY_SIZE(rt712_sdca_dmic_audio_map),
620 	.endianness = 1,
621 };
622 
rt712_sdca_dmic_set_sdw_stream(struct snd_soc_dai * dai,void * sdw_stream,int direction)623 static int rt712_sdca_dmic_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
624 				int direction)
625 {
626 	snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
627 
628 	return 0;
629 }
630 
rt712_sdca_dmic_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)631 static void rt712_sdca_dmic_shutdown(struct snd_pcm_substream *substream,
632 				struct snd_soc_dai *dai)
633 {
634 	snd_soc_dai_set_dma_data(dai, substream, NULL);
635 }
636 
rt712_sdca_dmic_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)637 static int rt712_sdca_dmic_hw_params(struct snd_pcm_substream *substream,
638 				struct snd_pcm_hw_params *params,
639 				struct snd_soc_dai *dai)
640 {
641 	struct snd_soc_component *component = dai->component;
642 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
643 	struct sdw_stream_config stream_config;
644 	struct sdw_port_config port_config;
645 	struct sdw_stream_runtime *sdw_stream;
646 	int retval, num_channels;
647 	unsigned int sampling_rate;
648 
649 	dev_dbg(dai->dev, "%s %s", __func__, dai->name);
650 	sdw_stream = snd_soc_dai_get_dma_data(dai, substream);
651 
652 	if (!sdw_stream)
653 		return -EINVAL;
654 
655 	if (!rt712->slave)
656 		return -EINVAL;
657 
658 	stream_config.frame_rate = params_rate(params);
659 	stream_config.ch_count = params_channels(params);
660 	stream_config.bps = snd_pcm_format_width(params_format(params));
661 	stream_config.direction = SDW_DATA_DIR_TX;
662 
663 	num_channels = params_channels(params);
664 	port_config.ch_mask = GENMASK(num_channels - 1, 0);
665 	port_config.num = 2;
666 
667 	retval = sdw_stream_add_slave(rt712->slave, &stream_config,
668 					&port_config, 1, sdw_stream);
669 	if (retval) {
670 		dev_err(dai->dev, "Unable to configure port\n");
671 		return retval;
672 	}
673 
674 	if (params_channels(params) > 4) {
675 		dev_err(component->dev, "Unsupported channels %d\n",
676 			params_channels(params));
677 		return -EINVAL;
678 	}
679 
680 	/* sampling rate configuration */
681 	switch (params_rate(params)) {
682 	case 16000:
683 		sampling_rate = RT712_SDCA_RATE_16000HZ;
684 		break;
685 	case 32000:
686 		sampling_rate = RT712_SDCA_RATE_32000HZ;
687 		break;
688 	case 44100:
689 		sampling_rate = RT712_SDCA_RATE_44100HZ;
690 		break;
691 	case 48000:
692 		sampling_rate = RT712_SDCA_RATE_48000HZ;
693 		break;
694 	case 96000:
695 		sampling_rate = RT712_SDCA_RATE_96000HZ;
696 		break;
697 	case 192000:
698 		sampling_rate = RT712_SDCA_RATE_192000HZ;
699 		break;
700 	default:
701 		dev_err(component->dev, "Rate %d is not supported\n",
702 			params_rate(params));
703 		return -EINVAL;
704 	}
705 
706 	/* set sampling frequency */
707 	regmap_write(rt712->regmap,
708 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_CS1F, RT712_SDCA_CTL_SAMPLE_FREQ_INDEX, 0),
709 		sampling_rate);
710 	regmap_write(rt712->regmap,
711 		SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT712_SDCA_ENT_CS1C, RT712_SDCA_CTL_SAMPLE_FREQ_INDEX, 0),
712 		sampling_rate);
713 
714 	return 0;
715 }
716 
rt712_sdca_dmic_hw_free(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)717 static int rt712_sdca_dmic_hw_free(struct snd_pcm_substream *substream,
718 				struct snd_soc_dai *dai)
719 {
720 	struct snd_soc_component *component = dai->component;
721 	struct rt712_sdca_dmic_priv *rt712 = snd_soc_component_get_drvdata(component);
722 	struct sdw_stream_runtime *sdw_stream =
723 		snd_soc_dai_get_dma_data(dai, substream);
724 
725 	if (!rt712->slave)
726 		return -EINVAL;
727 
728 	sdw_stream_remove_slave(rt712->slave, sdw_stream);
729 	return 0;
730 }
731 
732 #define RT712_STEREO_RATES (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
733 			SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000)
734 #define RT712_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
735 			SNDRV_PCM_FMTBIT_S24_LE)
736 
737 static const struct snd_soc_dai_ops rt712_sdca_dmic_ops = {
738 	.hw_params	= rt712_sdca_dmic_hw_params,
739 	.hw_free	= rt712_sdca_dmic_hw_free,
740 	.set_stream	= rt712_sdca_dmic_set_sdw_stream,
741 	.shutdown	= rt712_sdca_dmic_shutdown,
742 };
743 
744 static struct snd_soc_dai_driver rt712_sdca_dmic_dai[] = {
745 	{
746 		.name = "rt712-sdca-dmic-aif1",
747 		.id = RT712_AIF1,
748 		.capture = {
749 			.stream_name = "DP2 Capture",
750 			.channels_min = 1,
751 			.channels_max = 4,
752 			.rates = RT712_STEREO_RATES,
753 			.formats = RT712_FORMATS,
754 		},
755 		.ops = &rt712_sdca_dmic_ops,
756 	},
757 };
758 
rt712_sdca_dmic_init(struct device * dev,struct regmap * regmap,struct regmap * mbq_regmap,struct sdw_slave * slave)759 static int rt712_sdca_dmic_init(struct device *dev, struct regmap *regmap,
760 			struct regmap *mbq_regmap, struct sdw_slave *slave)
761 {
762 	struct rt712_sdca_dmic_priv *rt712;
763 	int ret;
764 
765 	rt712 = devm_kzalloc(dev, sizeof(*rt712), GFP_KERNEL);
766 	if (!rt712)
767 		return -ENOMEM;
768 
769 	dev_set_drvdata(dev, rt712);
770 	rt712->slave = slave;
771 	rt712->regmap = regmap;
772 	rt712->mbq_regmap = mbq_regmap;
773 
774 	regcache_cache_only(rt712->regmap, true);
775 	regcache_cache_only(rt712->mbq_regmap, true);
776 
777 	/*
778 	 * Mark hw_init to false
779 	 * HW init will be performed when device reports present
780 	 */
781 	rt712->hw_init = false;
782 	rt712->first_hw_init = false;
783 	rt712->fu1e_dapm_mute = true;
784 	rt712->fu1e_mixer_mute[0] = rt712->fu1e_mixer_mute[1] =
785 		rt712->fu1e_mixer_mute[2] = rt712->fu1e_mixer_mute[3] = true;
786 
787 	ret =  devm_snd_soc_register_component(dev,
788 			&soc_sdca_dev_rt712_dmic,
789 			rt712_sdca_dmic_dai,
790 			ARRAY_SIZE(rt712_sdca_dmic_dai));
791 	if (ret < 0)
792 		return ret;
793 
794 	/* set autosuspend parameters */
795 	pm_runtime_set_autosuspend_delay(dev, 3000);
796 	pm_runtime_use_autosuspend(dev);
797 
798 	/* make sure the device does not suspend immediately */
799 	pm_runtime_mark_last_busy(dev);
800 
801 	pm_runtime_enable(dev);
802 
803 	/* important note: the device is NOT tagged as 'active' and will remain
804 	 * 'suspended' until the hardware is enumerated/initialized. This is required
805 	 * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently
806 	 * fail with -EACCESS because of race conditions between card creation and enumeration
807 	 */
808 
809 	dev_dbg(dev, "%s\n", __func__);
810 
811 	return 0;
812 }
813 
814 
rt712_sdca_dmic_update_status(struct sdw_slave * slave,enum sdw_slave_status status)815 static int rt712_sdca_dmic_update_status(struct sdw_slave *slave,
816 				enum sdw_slave_status status)
817 {
818 	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(&slave->dev);
819 
820 	if (status == SDW_SLAVE_UNATTACHED)
821 		rt712->hw_init = false;
822 
823 	/*
824 	 * Perform initialization only if slave status is present and
825 	 * hw_init flag is false
826 	 */
827 	if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)
828 		return 0;
829 
830 	/* perform I/O transfers required for Slave initialization */
831 	return rt712_sdca_dmic_io_init(&slave->dev, slave);
832 }
833 
rt712_sdca_dmic_read_prop(struct sdw_slave * slave)834 static int rt712_sdca_dmic_read_prop(struct sdw_slave *slave)
835 {
836 	struct sdw_slave_prop *prop = &slave->prop;
837 	int nval, i;
838 	u32 bit;
839 	unsigned long addr;
840 	struct sdw_dpn_prop *dpn;
841 
842 	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
843 	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
844 
845 	prop->paging_support = true;
846 
847 	/* first we need to allocate memory for set bits in port lists */
848 	prop->source_ports = BIT(2); /* BITMAP: 00000100 */
849 	prop->sink_ports = 0;
850 
851 	nval = hweight32(prop->source_ports);
852 	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
853 		sizeof(*prop->src_dpn_prop), GFP_KERNEL);
854 	if (!prop->src_dpn_prop)
855 		return -ENOMEM;
856 
857 	i = 0;
858 	dpn = prop->src_dpn_prop;
859 	addr = prop->source_ports;
860 	for_each_set_bit(bit, &addr, 32) {
861 		dpn[i].num = bit;
862 		dpn[i].type = SDW_DPN_FULL;
863 		dpn[i].simple_ch_prep_sm = true;
864 		dpn[i].ch_prep_timeout = 10;
865 		i++;
866 	}
867 
868 	/* set the timeout values */
869 	prop->clk_stop_timeout = 200;
870 
871 	/* wake-up event */
872 	prop->wake_capable = 1;
873 
874 	return 0;
875 }
876 
877 static const struct sdw_device_id rt712_sdca_dmic_id[] = {
878 	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1712, 0x3, 0x1, 0),
879 	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1713, 0x3, 0x1, 0),
880 	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1716, 0x3, 0x1, 0),
881 	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1717, 0x3, 0x1, 0),
882 	{},
883 };
884 MODULE_DEVICE_TABLE(sdw, rt712_sdca_dmic_id);
885 
rt712_sdca_dmic_dev_suspend(struct device * dev)886 static int __maybe_unused rt712_sdca_dmic_dev_suspend(struct device *dev)
887 {
888 	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);
889 
890 	if (!rt712->hw_init)
891 		return 0;
892 
893 	regcache_cache_only(rt712->regmap, true);
894 	regcache_cache_only(rt712->mbq_regmap, true);
895 
896 	return 0;
897 }
898 
rt712_sdca_dmic_dev_system_suspend(struct device * dev)899 static int __maybe_unused rt712_sdca_dmic_dev_system_suspend(struct device *dev)
900 {
901 	struct rt712_sdca_dmic_priv *rt712_sdca = dev_get_drvdata(dev);
902 
903 	if (!rt712_sdca->hw_init)
904 		return 0;
905 
906 	return rt712_sdca_dmic_dev_suspend(dev);
907 }
908 
909 #define RT712_PROBE_TIMEOUT 5000
910 
rt712_sdca_dmic_dev_resume(struct device * dev)911 static int __maybe_unused rt712_sdca_dmic_dev_resume(struct device *dev)
912 {
913 	struct sdw_slave *slave = dev_to_sdw_dev(dev);
914 	struct rt712_sdca_dmic_priv *rt712 = dev_get_drvdata(dev);
915 	unsigned long time;
916 
917 	if (!rt712->first_hw_init)
918 		return 0;
919 
920 	if (!slave->unattach_request)
921 		goto regmap_sync;
922 
923 	time = wait_for_completion_timeout(&slave->initialization_complete,
924 				msecs_to_jiffies(RT712_PROBE_TIMEOUT));
925 	if (!time) {
926 		dev_err(&slave->dev, "Initialization not complete, timed out\n");
927 		sdw_show_ping_status(slave->bus, true);
928 
929 		return -ETIMEDOUT;
930 	}
931 
932 regmap_sync:
933 	slave->unattach_request = 0;
934 	regcache_cache_only(rt712->regmap, false);
935 	regcache_sync(rt712->regmap);
936 	regcache_cache_only(rt712->mbq_regmap, false);
937 	regcache_sync(rt712->mbq_regmap);
938 	return 0;
939 }
940 
941 static const struct dev_pm_ops rt712_sdca_dmic_pm = {
942 	SET_SYSTEM_SLEEP_PM_OPS(rt712_sdca_dmic_dev_system_suspend, rt712_sdca_dmic_dev_resume)
943 	SET_RUNTIME_PM_OPS(rt712_sdca_dmic_dev_suspend, rt712_sdca_dmic_dev_resume, NULL)
944 };
945 
946 
947 static struct sdw_slave_ops rt712_sdca_dmic_slave_ops = {
948 	.read_prop = rt712_sdca_dmic_read_prop,
949 	.update_status = rt712_sdca_dmic_update_status,
950 };
951 
rt712_sdca_dmic_sdw_probe(struct sdw_slave * slave,const struct sdw_device_id * id)952 static int rt712_sdca_dmic_sdw_probe(struct sdw_slave *slave,
953 				const struct sdw_device_id *id)
954 {
955 	struct regmap *regmap, *mbq_regmap;
956 
957 	/* Regmap Initialization */
958 	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_dmic_mbq_regmap);
959 	if (IS_ERR(mbq_regmap))
960 		return PTR_ERR(mbq_regmap);
961 
962 	regmap = devm_regmap_init_sdw(slave, &rt712_sdca_dmic_regmap);
963 	if (IS_ERR(regmap))
964 		return PTR_ERR(regmap);
965 
966 	return rt712_sdca_dmic_init(&slave->dev, regmap, mbq_regmap, slave);
967 }
968 
rt712_sdca_dmic_sdw_remove(struct sdw_slave * slave)969 static int rt712_sdca_dmic_sdw_remove(struct sdw_slave *slave)
970 {
971 	pm_runtime_disable(&slave->dev);
972 
973 	return 0;
974 }
975 
976 static struct sdw_driver rt712_sdca_dmic_sdw_driver = {
977 	.driver = {
978 		.name = "rt712-sdca-dmic",
979 		.owner = THIS_MODULE,
980 		.pm = &rt712_sdca_dmic_pm,
981 	},
982 	.probe = rt712_sdca_dmic_sdw_probe,
983 	.remove = rt712_sdca_dmic_sdw_remove,
984 	.ops = &rt712_sdca_dmic_slave_ops,
985 	.id_table = rt712_sdca_dmic_id,
986 };
987 module_sdw_driver(rt712_sdca_dmic_sdw_driver);
988 
989 MODULE_DESCRIPTION("ASoC RT712 SDCA DMIC SDW driver");
990 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
991 MODULE_LICENSE("GPL");
992