1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Cirrus Logic CS421x HD-audio codec
4 */
5
6 #include <linux/init.h>
7 #include <linux/slab.h>
8 #include <linux/module.h>
9 #include <sound/core.h>
10 #include <linux/pci.h>
11 #include <sound/tlv.h>
12 #include <sound/hda_codec.h>
13 #include "hda_local.h"
14 #include "hda_auto_parser.h"
15 #include "hda_jack.h"
16 #include "../generic.h"
17
18 struct cs_spec {
19 struct hda_gen_spec gen;
20
21 unsigned int gpio_mask;
22 unsigned int gpio_dir;
23 unsigned int gpio_data;
24 unsigned int gpio_eapd_hp; /* EAPD GPIO bit for headphones */
25 unsigned int gpio_eapd_speaker; /* EAPD GPIO bit for speakers */
26
27 /* CS421x */
28 unsigned int spdif_detect:1;
29 unsigned int spdif_present:1;
30 unsigned int sense_b:1;
31 hda_nid_t vendor_nid;
32
33 /* for MBP SPDIF control */
34 int (*spdif_sw_put)(struct snd_kcontrol *kcontrol,
35 struct snd_ctl_elem_value *ucontrol);
36 };
37
38 /* CS421x boards */
39 enum {
40 CS421X_CDB4210,
41 CS421X_SENSE_B,
42 CS421X_STUMPY,
43 };
44
45 /* Vendor-specific processing widget */
46 #define CS_DIG_OUT1_PIN_NID 0x10
47 #define CS_DIG_OUT2_PIN_NID 0x15
48 #define CS_DMIC1_PIN_NID 0x0e
49 #define CS_DMIC2_PIN_NID 0x12
50
51 /* coef indices */
52 #define IDX_SPDIF_STAT 0x0000
53 #define IDX_SPDIF_CTL 0x0001
54 #define IDX_ADC_CFG 0x0002
55 /* SZC bitmask, 4 modes below:
56 * 0 = immediate,
57 * 1 = digital immediate, analog zero-cross
58 * 2 = digtail & analog soft-ramp
59 * 3 = digital soft-ramp, analog zero-cross
60 */
61 #define CS_COEF_ADC_SZC_MASK (3 << 0)
62 #define CS_COEF_ADC_MIC_SZC_MODE (3 << 0) /* SZC setup for mic */
63 #define CS_COEF_ADC_LI_SZC_MODE (3 << 0) /* SZC setup for line-in */
64 /* PGA mode: 0 = differential, 1 = signle-ended */
65 #define CS_COEF_ADC_MIC_PGA_MODE (1 << 5) /* PGA setup for mic */
66 #define CS_COEF_ADC_LI_PGA_MODE (1 << 6) /* PGA setup for line-in */
67 #define IDX_DAC_CFG 0x0003
68 /* SZC bitmask, 4 modes below:
69 * 0 = Immediate
70 * 1 = zero-cross
71 * 2 = soft-ramp
72 * 3 = soft-ramp on zero-cross
73 */
74 #define CS_COEF_DAC_HP_SZC_MODE (3 << 0) /* nid 0x02 */
75 #define CS_COEF_DAC_LO_SZC_MODE (3 << 2) /* nid 0x03 */
76 #define CS_COEF_DAC_SPK_SZC_MODE (3 << 4) /* nid 0x04 */
77
78 #define IDX_BEEP_CFG 0x0004
79 /* 0x0008 - test reg key */
80 /* 0x0009 - 0x0014 -> 12 test regs */
81 /* 0x0015 - visibility reg */
82
83 /*
84 * Cirrus Logic CS4210
85 *
86 * 1 DAC => HP(sense) / Speakers,
87 * 1 ADC <= LineIn(sense) / MicIn / DMicIn,
88 * 1 SPDIF OUT => SPDIF Transmitter(sense)
89 */
90 #define CS4210_DAC_NID 0x02
91 #define CS4210_ADC_NID 0x03
92 #define CS4210_VENDOR_NID 0x0B
93 #define CS421X_DMIC_PIN_NID 0x09 /* Port E */
94 #define CS421X_SPDIF_PIN_NID 0x0A /* Port H */
95
96 #define CS421X_IDX_DEV_CFG 0x01
97 #define CS421X_IDX_ADC_CFG 0x02
98 #define CS421X_IDX_DAC_CFG 0x03
99 #define CS421X_IDX_SPK_CTL 0x04
100
101 /* Cirrus Logic CS4213 is like CS4210 but does not have SPDIF input/output */
102 #define CS4213_VENDOR_NID 0x09
103
104
cs_vendor_coef_get(struct hda_codec * codec,unsigned int idx)105 static inline int cs_vendor_coef_get(struct hda_codec *codec, unsigned int idx)
106 {
107 struct cs_spec *spec = codec->spec;
108
109 snd_hda_codec_write(codec, spec->vendor_nid, 0,
110 AC_VERB_SET_COEF_INDEX, idx);
111 return snd_hda_codec_read(codec, spec->vendor_nid, 0,
112 AC_VERB_GET_PROC_COEF, 0);
113 }
114
cs_vendor_coef_set(struct hda_codec * codec,unsigned int idx,unsigned int coef)115 static inline void cs_vendor_coef_set(struct hda_codec *codec, unsigned int idx,
116 unsigned int coef)
117 {
118 struct cs_spec *spec = codec->spec;
119
120 snd_hda_codec_write(codec, spec->vendor_nid, 0,
121 AC_VERB_SET_COEF_INDEX, idx);
122 snd_hda_codec_write(codec, spec->vendor_nid, 0,
123 AC_VERB_SET_PROC_COEF, coef);
124 }
125
126 /*
127 * auto-mute and auto-mic switching
128 * CS421x auto-output redirecting
129 * HP/SPK/SPDIF
130 */
131
cs_automute(struct hda_codec * codec)132 static void cs_automute(struct hda_codec *codec)
133 {
134 struct cs_spec *spec = codec->spec;
135
136 /* mute HPs if spdif jack (SENSE_B) is present */
137 spec->gen.master_mute = !!(spec->spdif_present && spec->sense_b);
138
139 snd_hda_gen_update_outputs(codec);
140
141 if (spec->gpio_eapd_hp || spec->gpio_eapd_speaker) {
142 if (spec->gen.automute_speaker)
143 spec->gpio_data = spec->gen.hp_jack_present ?
144 spec->gpio_eapd_hp : spec->gpio_eapd_speaker;
145 else
146 spec->gpio_data =
147 spec->gpio_eapd_hp | spec->gpio_eapd_speaker;
148 snd_hda_codec_write(codec, 0x01, 0,
149 AC_VERB_SET_GPIO_DATA, spec->gpio_data);
150 }
151 }
152
is_active_pin(struct hda_codec * codec,hda_nid_t nid)153 static bool is_active_pin(struct hda_codec *codec, hda_nid_t nid)
154 {
155 unsigned int val;
156
157 val = snd_hda_codec_get_pincfg(codec, nid);
158 return (get_defcfg_connect(val) != AC_JACK_PORT_NONE);
159 }
160
cs_alloc_spec(struct hda_codec * codec,int vendor_nid)161 static struct cs_spec *cs_alloc_spec(struct hda_codec *codec, int vendor_nid)
162 {
163 struct cs_spec *spec;
164
165 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
166 if (!spec)
167 return NULL;
168 codec->spec = spec;
169 spec->vendor_nid = vendor_nid;
170 codec->power_save_node = 1;
171 snd_hda_gen_spec_init(&spec->gen);
172
173 return spec;
174 }
175
176 /*
177 * Cirrus Logic CS4210
178 *
179 * 1 DAC => HP(sense) / Speakers,
180 * 1 ADC <= LineIn(sense) / MicIn / DMicIn,
181 * 1 SPDIF OUT => SPDIF Transmitter(sense)
182 */
183
184 /* CS4210 board names */
185 static const struct hda_model_fixup cs421x_models[] = {
186 { .id = CS421X_CDB4210, .name = "cdb4210" },
187 { .id = CS421X_STUMPY, .name = "stumpy" },
188 {}
189 };
190
191 static const struct hda_quirk cs421x_fixup_tbl[] = {
192 /* Test Intel board + CDB2410 */
193 SND_PCI_QUIRK(0x8086, 0x5001, "DP45SG/CDB4210", CS421X_CDB4210),
194 {} /* terminator */
195 };
196
197 /* CS4210 board pinconfigs */
198 /* Default CS4210 (CDB4210)*/
199 static const struct hda_pintbl cdb4210_pincfgs[] = {
200 { 0x05, 0x0321401f },
201 { 0x06, 0x90170010 },
202 { 0x07, 0x03813031 },
203 { 0x08, 0xb7a70037 },
204 { 0x09, 0xb7a6003e },
205 { 0x0a, 0x034510f0 },
206 {} /* terminator */
207 };
208
209 /* Stumpy ChromeBox */
210 static const struct hda_pintbl stumpy_pincfgs[] = {
211 { 0x05, 0x022120f0 },
212 { 0x06, 0x901700f0 },
213 { 0x07, 0x02a120f0 },
214 { 0x08, 0x77a70037 },
215 { 0x09, 0x77a6003e },
216 { 0x0a, 0x434510f0 },
217 {} /* terminator */
218 };
219
220 /* Setup GPIO/SENSE for each board (if used) */
cs421x_fixup_sense_b(struct hda_codec * codec,const struct hda_fixup * fix,int action)221 static void cs421x_fixup_sense_b(struct hda_codec *codec,
222 const struct hda_fixup *fix, int action)
223 {
224 struct cs_spec *spec = codec->spec;
225
226 if (action == HDA_FIXUP_ACT_PRE_PROBE)
227 spec->sense_b = 1;
228 }
229
230 static const struct hda_fixup cs421x_fixups[] = {
231 [CS421X_CDB4210] = {
232 .type = HDA_FIXUP_PINS,
233 .v.pins = cdb4210_pincfgs,
234 .chained = true,
235 .chain_id = CS421X_SENSE_B,
236 },
237 [CS421X_SENSE_B] = {
238 .type = HDA_FIXUP_FUNC,
239 .v.func = cs421x_fixup_sense_b,
240 },
241 [CS421X_STUMPY] = {
242 .type = HDA_FIXUP_PINS,
243 .v.pins = stumpy_pincfgs,
244 },
245 };
246
247 static const struct hda_verb cs421x_coef_init_verbs[] = {
248 {0x0B, AC_VERB_SET_PROC_STATE, 1},
249 {0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_DEV_CFG},
250 /*
251 * Disable Coefficient Index Auto-Increment(DAI)=1,
252 * PDREF=0
253 */
254 {0x0B, AC_VERB_SET_PROC_COEF, 0x0001 },
255
256 {0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_ADC_CFG},
257 /* ADC SZCMode = Digital Soft Ramp */
258 {0x0B, AC_VERB_SET_PROC_COEF, 0x0002 },
259
260 {0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_DAC_CFG},
261 {0x0B, AC_VERB_SET_PROC_COEF,
262 (0x0002 /* DAC SZCMode = Digital Soft Ramp */
263 | 0x0004 /* Mute DAC on FIFO error */
264 | 0x0008 /* Enable DAC High Pass Filter */
265 )},
266 {} /* terminator */
267 };
268
269 /* Errata: CS4210 rev A1 Silicon
270 *
271 * http://www.cirrus.com/en/pubs/errata/
272 *
273 * Description:
274 * 1. Performance degredation is present in the ADC.
275 * 2. Speaker output is not completely muted upon HP detect.
276 * 3. Noise is present when clipping occurs on the amplified
277 * speaker outputs.
278 *
279 * Workaround:
280 * The following verb sequence written to the registers during
281 * initialization will correct the issues listed above.
282 */
283
284 static const struct hda_verb cs421x_coef_init_verbs_A1_silicon_fixes[] = {
285 {0x0B, AC_VERB_SET_PROC_STATE, 0x01}, /* VPW: processing on */
286
287 {0x0B, AC_VERB_SET_COEF_INDEX, 0x0006},
288 {0x0B, AC_VERB_SET_PROC_COEF, 0x9999}, /* Test mode: on */
289
290 {0x0B, AC_VERB_SET_COEF_INDEX, 0x000A},
291 {0x0B, AC_VERB_SET_PROC_COEF, 0x14CB}, /* Chop double */
292
293 {0x0B, AC_VERB_SET_COEF_INDEX, 0x0011},
294 {0x0B, AC_VERB_SET_PROC_COEF, 0xA2D0}, /* Increase ADC current */
295
296 {0x0B, AC_VERB_SET_COEF_INDEX, 0x001A},
297 {0x0B, AC_VERB_SET_PROC_COEF, 0x02A9}, /* Mute speaker */
298
299 {0x0B, AC_VERB_SET_COEF_INDEX, 0x001B},
300 {0x0B, AC_VERB_SET_PROC_COEF, 0X1006}, /* Remove noise */
301
302 {} /* terminator */
303 };
304
305 /* Speaker Amp Gain is controlled by the vendor widget's coef 4 */
306 static const DECLARE_TLV_DB_SCALE(cs421x_speaker_boost_db_scale, 900, 300, 0);
307
cs421x_boost_vol_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)308 static int cs421x_boost_vol_info(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_info *uinfo)
310 {
311 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
312 uinfo->count = 1;
313 uinfo->value.integer.min = 0;
314 uinfo->value.integer.max = 3;
315 return 0;
316 }
317
cs421x_boost_vol_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)318 static int cs421x_boost_vol_get(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_value *ucontrol)
320 {
321 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
322
323 ucontrol->value.integer.value[0] =
324 cs_vendor_coef_get(codec, CS421X_IDX_SPK_CTL) & 0x0003;
325 return 0;
326 }
327
cs421x_boost_vol_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)328 static int cs421x_boost_vol_put(struct snd_kcontrol *kcontrol,
329 struct snd_ctl_elem_value *ucontrol)
330 {
331 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
332
333 unsigned int vol = ucontrol->value.integer.value[0];
334 unsigned int coef =
335 cs_vendor_coef_get(codec, CS421X_IDX_SPK_CTL);
336 unsigned int original_coef = coef;
337
338 coef &= ~0x0003;
339 coef |= (vol & 0x0003);
340 if (original_coef != coef) {
341 cs_vendor_coef_set(codec, CS421X_IDX_SPK_CTL, coef);
342 return 1;
343 }
344
345 return 0;
346 }
347
348 static const struct snd_kcontrol_new cs421x_speaker_boost_ctl = {
349
350 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
351 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
352 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
353 .name = "Speaker Boost Playback Volume",
354 .info = cs421x_boost_vol_info,
355 .get = cs421x_boost_vol_get,
356 .put = cs421x_boost_vol_put,
357 .tlv = { .p = cs421x_speaker_boost_db_scale },
358 };
359
cs4210_pinmux_init(struct hda_codec * codec)360 static void cs4210_pinmux_init(struct hda_codec *codec)
361 {
362 struct cs_spec *spec = codec->spec;
363 unsigned int def_conf, coef;
364
365 /* GPIO, DMIC_SCL, DMIC_SDA and SENSE_B are multiplexed */
366 coef = cs_vendor_coef_get(codec, CS421X_IDX_DEV_CFG);
367
368 if (spec->gpio_mask)
369 coef |= 0x0008; /* B1,B2 are GPIOs */
370 else
371 coef &= ~0x0008;
372
373 if (spec->sense_b)
374 coef |= 0x0010; /* B2 is SENSE_B, not inverted */
375 else
376 coef &= ~0x0010;
377
378 cs_vendor_coef_set(codec, CS421X_IDX_DEV_CFG, coef);
379
380 if ((spec->gpio_mask || spec->sense_b) &&
381 is_active_pin(codec, CS421X_DMIC_PIN_NID)) {
382
383 /*
384 * GPIO or SENSE_B forced - disconnect the DMIC pin.
385 */
386 def_conf = snd_hda_codec_get_pincfg(codec, CS421X_DMIC_PIN_NID);
387 def_conf &= ~AC_DEFCFG_PORT_CONN;
388 def_conf |= (AC_JACK_PORT_NONE << AC_DEFCFG_PORT_CONN_SHIFT);
389 snd_hda_codec_set_pincfg(codec, CS421X_DMIC_PIN_NID, def_conf);
390 }
391 }
392
cs4210_spdif_automute(struct hda_codec * codec,struct hda_jack_callback * tbl)393 static void cs4210_spdif_automute(struct hda_codec *codec,
394 struct hda_jack_callback *tbl)
395 {
396 struct cs_spec *spec = codec->spec;
397 bool spdif_present = false;
398 hda_nid_t spdif_pin = spec->gen.autocfg.dig_out_pins[0];
399
400 /* detect on spdif is specific to CS4210 */
401 if (!spec->spdif_detect ||
402 spec->vendor_nid != CS4210_VENDOR_NID)
403 return;
404
405 spdif_present = snd_hda_jack_detect(codec, spdif_pin);
406 if (spdif_present == spec->spdif_present)
407 return;
408
409 spec->spdif_present = spdif_present;
410 /* SPDIF TX on/off */
411 snd_hda_set_pin_ctl(codec, spdif_pin, spdif_present ? PIN_OUT : 0);
412
413 cs_automute(codec);
414 }
415
parse_cs421x_digital(struct hda_codec * codec)416 static void parse_cs421x_digital(struct hda_codec *codec)
417 {
418 struct cs_spec *spec = codec->spec;
419 struct auto_pin_cfg *cfg = &spec->gen.autocfg;
420 int i;
421
422 for (i = 0; i < cfg->dig_outs; i++) {
423 hda_nid_t nid = cfg->dig_out_pins[i];
424
425 if (get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP) {
426 spec->spdif_detect = 1;
427 snd_hda_jack_detect_enable_callback(codec, nid,
428 cs4210_spdif_automute);
429 }
430 }
431 }
432
cs421x_init(struct hda_codec * codec)433 static int cs421x_init(struct hda_codec *codec)
434 {
435 struct cs_spec *spec = codec->spec;
436
437 if (spec->vendor_nid == CS4210_VENDOR_NID) {
438 snd_hda_sequence_write(codec, cs421x_coef_init_verbs);
439 snd_hda_sequence_write(codec, cs421x_coef_init_verbs_A1_silicon_fixes);
440 cs4210_pinmux_init(codec);
441 }
442
443 snd_hda_gen_init(codec);
444
445 if (spec->gpio_mask) {
446 snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_MASK,
447 spec->gpio_mask);
448 snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DIRECTION,
449 spec->gpio_dir);
450 snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA,
451 spec->gpio_data);
452 }
453
454 cs4210_spdif_automute(codec, NULL);
455
456 return 0;
457 }
458
fix_volume_caps(struct hda_codec * codec,hda_nid_t dac)459 static void fix_volume_caps(struct hda_codec *codec, hda_nid_t dac)
460 {
461 unsigned int caps;
462
463 /* set the upper-limit for mixer amp to 0dB */
464 caps = query_amp_caps(codec, dac, HDA_OUTPUT);
465 caps &= ~(0x7f << AC_AMPCAP_NUM_STEPS_SHIFT);
466 caps |= ((caps >> AC_AMPCAP_OFFSET_SHIFT) & 0x7f)
467 << AC_AMPCAP_NUM_STEPS_SHIFT;
468 snd_hda_override_amp_caps(codec, dac, HDA_OUTPUT, caps);
469 }
470
cs421x_parse_auto_config(struct hda_codec * codec)471 static int cs421x_parse_auto_config(struct hda_codec *codec)
472 {
473 struct cs_spec *spec = codec->spec;
474 hda_nid_t dac = CS4210_DAC_NID;
475 int err;
476
477 fix_volume_caps(codec, dac);
478
479 err = snd_hda_parse_pin_defcfg(codec, &spec->gen.autocfg, NULL, 0);
480 if (err < 0)
481 return err;
482
483 err = snd_hda_gen_parse_auto_config(codec, &spec->gen.autocfg);
484 if (err < 0)
485 return err;
486
487 parse_cs421x_digital(codec);
488
489 if (spec->gen.autocfg.speaker_outs &&
490 spec->vendor_nid == CS4210_VENDOR_NID) {
491 if (!snd_hda_gen_add_kctl(&spec->gen, NULL,
492 &cs421x_speaker_boost_ctl))
493 return -ENOMEM;
494 }
495
496 return 0;
497 }
498
499 /*
500 * Manage PDREF, when transitioning to D3hot
501 * (DAC,ADC) -> D3, PDREF=1, AFG->D3
502 */
cs421x_suspend(struct hda_codec * codec)503 static int cs421x_suspend(struct hda_codec *codec)
504 {
505 struct cs_spec *spec = codec->spec;
506 unsigned int coef;
507
508 snd_hda_shutup_pins(codec);
509
510 snd_hda_codec_write(codec, CS4210_DAC_NID, 0,
511 AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
512 snd_hda_codec_write(codec, CS4210_ADC_NID, 0,
513 AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
514
515 if (spec->vendor_nid == CS4210_VENDOR_NID) {
516 coef = cs_vendor_coef_get(codec, CS421X_IDX_DEV_CFG);
517 coef |= 0x0004; /* PDREF */
518 cs_vendor_coef_set(codec, CS421X_IDX_DEV_CFG, coef);
519 }
520
521 return 0;
522 }
523
cs421x_probe(struct hda_codec * codec,const struct hda_device_id * id)524 static int cs421x_probe(struct hda_codec *codec, const struct hda_device_id *id)
525 {
526 struct cs_spec *spec;
527 int err;
528
529 spec = cs_alloc_spec(codec, id->driver_data);
530 if (!spec)
531 return -ENOMEM;
532
533 spec->gen.automute_hook = cs_automute;
534
535 if (spec->vendor_nid == CS4210_VENDOR_NID) {
536 snd_hda_pick_fixup(codec, cs421x_models, cs421x_fixup_tbl,
537 cs421x_fixups);
538 snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
539
540 /*
541 * Update the GPIO/DMIC/SENSE_B pinmux before the configuration
542 * is auto-parsed. If GPIO or SENSE_B is forced, DMIC input
543 * is disabled.
544 */
545 cs4210_pinmux_init(codec);
546 }
547
548 err = cs421x_parse_auto_config(codec);
549 if (err < 0)
550 goto error;
551
552 snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);
553
554 return 0;
555
556 error:
557 snd_hda_gen_remove(codec);
558 return err;
559 }
560
561 static const struct hda_codec_ops cs421x_codec_ops = {
562 .probe = cs421x_probe,
563 .remove = snd_hda_gen_remove,
564 .build_controls = snd_hda_gen_build_controls,
565 .build_pcms = snd_hda_gen_build_pcms,
566 .init = cs421x_init,
567 .unsol_event = snd_hda_jack_unsol_event,
568 .suspend = cs421x_suspend,
569 .stream_pm = snd_hda_gen_stream_pm,
570 };
571
572 /*
573 * driver entries
574 */
575 static const struct hda_device_id snd_hda_id_cs421x[] = {
576 HDA_CODEC_ID_MODEL(0x10134210, "CS4210", CS4210_VENDOR_NID),
577 HDA_CODEC_ID_MODEL(0x10134213, "CS4213", CS4213_VENDOR_NID),
578 {} /* terminator */
579 };
580 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cs421x);
581
582 MODULE_LICENSE("GPL");
583 MODULE_DESCRIPTION("Cirrus Logic CS421x HD-audio codec");
584
585 static struct hda_codec_driver cs421x_driver = {
586 .id = snd_hda_id_cs421x,
587 .ops = &cs421x_codec_ops,
588 };
589
590 module_hda_codec_driver(cs421x_driver);
591