xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision 5a158981)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
5  *
6  *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
7  *  Copyright (c) 2006 ATI Technologies Inc.
8  *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
9  *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
10  *  Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
11  *
12  *  Authors:
13  *			Wu Fengguang <wfg@linux.intel.com>
14  *
15  *  Maintained by:
16  *			Wu Fengguang <wfg@linux.intel.com>
17  */
18 
19 #include <linux/init.h>
20 #include <linux/delay.h>
21 #include <linux/pci.h>
22 #include <linux/slab.h>
23 #include <linux/module.h>
24 #include <linux/pm_runtime.h>
25 #include <sound/core.h>
26 #include <sound/jack.h>
27 #include <sound/asoundef.h>
28 #include <sound/tlv.h>
29 #include <sound/hdaudio.h>
30 #include <sound/hda_i915.h>
31 #include <sound/hda_chmap.h>
32 #include <sound/hda_codec.h>
33 #include "hda_local.h"
34 #include "hda_jack.h"
35 #include "hda_controller.h"
36 
37 static bool static_hdmi_pcm;
38 module_param(static_hdmi_pcm, bool, 0644);
39 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
40 
41 struct hdmi_spec_per_cvt {
42 	hda_nid_t cvt_nid;
43 	int assigned;
44 	unsigned int channels_min;
45 	unsigned int channels_max;
46 	u32 rates;
47 	u64 formats;
48 	unsigned int maxbps;
49 };
50 
51 /* max. connections to a widget */
52 #define HDA_MAX_CONNECTIONS	32
53 
54 struct hdmi_spec_per_pin {
55 	hda_nid_t pin_nid;
56 	int dev_id;
57 	/* pin idx, different device entries on the same pin use the same idx */
58 	int pin_nid_idx;
59 	int num_mux_nids;
60 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
61 	int mux_idx;
62 	hda_nid_t cvt_nid;
63 
64 	struct hda_codec *codec;
65 	struct hdmi_eld sink_eld;
66 	struct mutex lock;
67 	struct delayed_work work;
68 	struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
69 	int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
70 	int repoll_count;
71 	bool setup; /* the stream has been set up by prepare callback */
72 	int channels; /* current number of channels */
73 	bool non_pcm;
74 	bool chmap_set;		/* channel-map override by ALSA API? */
75 	unsigned char chmap[8]; /* ALSA API channel-map */
76 #ifdef CONFIG_SND_PROC_FS
77 	struct snd_info_entry *proc_entry;
78 #endif
79 };
80 
81 /* operations used by generic code that can be overridden by patches */
82 struct hdmi_ops {
83 	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
84 			   int dev_id, unsigned char *buf, int *eld_size);
85 
86 	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
87 				    int dev_id,
88 				    int ca, int active_channels, int conn_type);
89 
90 	/* enable/disable HBR (HD passthrough) */
91 	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid,
92 			     int dev_id, bool hbr);
93 
94 	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
95 			    hda_nid_t pin_nid, int dev_id, u32 stream_tag,
96 			    int format);
97 
98 	void (*pin_cvt_fixup)(struct hda_codec *codec,
99 			      struct hdmi_spec_per_pin *per_pin,
100 			      hda_nid_t cvt_nid);
101 };
102 
103 struct hdmi_pcm {
104 	struct hda_pcm *pcm;
105 	struct snd_jack *jack;
106 	struct snd_kcontrol *eld_ctl;
107 };
108 
109 struct hdmi_spec {
110 	struct hda_codec *codec;
111 	int num_cvts;
112 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
113 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
114 
115 	/*
116 	 * num_pins is the number of virtual pins
117 	 * for example, there are 3 pins, and each pin
118 	 * has 4 device entries, then the num_pins is 12
119 	 */
120 	int num_pins;
121 	/*
122 	 * num_nids is the number of real pins
123 	 * In the above example, num_nids is 3
124 	 */
125 	int num_nids;
126 	/*
127 	 * dev_num is the number of device entries
128 	 * on each pin.
129 	 * In the above example, dev_num is 4
130 	 */
131 	int dev_num;
132 	struct snd_array pins; /* struct hdmi_spec_per_pin */
133 	struct hdmi_pcm pcm_rec[16];
134 	struct mutex pcm_lock;
135 	struct mutex bind_lock; /* for audio component binding */
136 	/* pcm_bitmap means which pcms have been assigned to pins*/
137 	unsigned long pcm_bitmap;
138 	int pcm_used;	/* counter of pcm_rec[] */
139 	/* bitmap shows whether the pcm is opened in user space
140 	 * bit 0 means the first playback PCM (PCM3);
141 	 * bit 1 means the second playback PCM, and so on.
142 	 */
143 	unsigned long pcm_in_use;
144 
145 	struct hdmi_eld temp_eld;
146 	struct hdmi_ops ops;
147 
148 	bool dyn_pin_out;
149 	bool dyn_pcm_assign;
150 	bool intel_hsw_fixup;	/* apply Intel platform-specific fixups */
151 	/*
152 	 * Non-generic VIA/NVIDIA specific
153 	 */
154 	struct hda_multi_out multiout;
155 	struct hda_pcm_stream pcm_playback;
156 
157 	bool use_jack_detect; /* jack detection enabled */
158 	bool use_acomp_notifier; /* use eld_notify callback for hotplug */
159 	bool acomp_registered; /* audio component registered in this driver */
160 	struct drm_audio_component_audio_ops drm_audio_ops;
161 	int (*port2pin)(struct hda_codec *, int); /* reverse port/pin mapping */
162 
163 	struct hdac_chmap chmap;
164 	hda_nid_t vendor_nid;
165 	const int *port_map;
166 	int port_num;
167 };
168 
169 #ifdef CONFIG_SND_HDA_COMPONENT
170 static inline bool codec_has_acomp(struct hda_codec *codec)
171 {
172 	struct hdmi_spec *spec = codec->spec;
173 	return spec->use_acomp_notifier;
174 }
175 #else
176 #define codec_has_acomp(codec)	false
177 #endif
178 
179 struct hdmi_audio_infoframe {
180 	u8 type; /* 0x84 */
181 	u8 ver;  /* 0x01 */
182 	u8 len;  /* 0x0a */
183 
184 	u8 checksum;
185 
186 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
187 	u8 SS01_SF24;
188 	u8 CXT04;
189 	u8 CA;
190 	u8 LFEPBL01_LSV36_DM_INH7;
191 };
192 
193 struct dp_audio_infoframe {
194 	u8 type; /* 0x84 */
195 	u8 len;  /* 0x1b */
196 	u8 ver;  /* 0x11 << 2 */
197 
198 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
199 	u8 SS01_SF24;
200 	u8 CXT04;
201 	u8 CA;
202 	u8 LFEPBL01_LSV36_DM_INH7;
203 };
204 
205 union audio_infoframe {
206 	struct hdmi_audio_infoframe hdmi;
207 	struct dp_audio_infoframe dp;
208 	u8 bytes[0];
209 };
210 
211 /*
212  * HDMI routines
213  */
214 
215 #define get_pin(spec, idx) \
216 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
217 #define get_cvt(spec, idx) \
218 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
219 /* obtain hdmi_pcm object assigned to idx */
220 #define get_hdmi_pcm(spec, idx)	(&(spec)->pcm_rec[idx])
221 /* obtain hda_pcm object assigned to idx */
222 #define get_pcm_rec(spec, idx)	(get_hdmi_pcm(spec, idx)->pcm)
223 
224 static int pin_id_to_pin_index(struct hda_codec *codec,
225 			       hda_nid_t pin_nid, int dev_id)
226 {
227 	struct hdmi_spec *spec = codec->spec;
228 	int pin_idx;
229 	struct hdmi_spec_per_pin *per_pin;
230 
231 	/*
232 	 * (dev_id == -1) means it is NON-MST pin
233 	 * return the first virtual pin on this port
234 	 */
235 	if (dev_id == -1)
236 		dev_id = 0;
237 
238 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
239 		per_pin = get_pin(spec, pin_idx);
240 		if ((per_pin->pin_nid == pin_nid) &&
241 			(per_pin->dev_id == dev_id))
242 			return pin_idx;
243 	}
244 
245 	codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
246 	return -EINVAL;
247 }
248 
249 static int hinfo_to_pcm_index(struct hda_codec *codec,
250 			struct hda_pcm_stream *hinfo)
251 {
252 	struct hdmi_spec *spec = codec->spec;
253 	int pcm_idx;
254 
255 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++)
256 		if (get_pcm_rec(spec, pcm_idx)->stream == hinfo)
257 			return pcm_idx;
258 
259 	codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
260 	return -EINVAL;
261 }
262 
263 static int hinfo_to_pin_index(struct hda_codec *codec,
264 			      struct hda_pcm_stream *hinfo)
265 {
266 	struct hdmi_spec *spec = codec->spec;
267 	struct hdmi_spec_per_pin *per_pin;
268 	int pin_idx;
269 
270 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
271 		per_pin = get_pin(spec, pin_idx);
272 		if (per_pin->pcm &&
273 			per_pin->pcm->pcm->stream == hinfo)
274 			return pin_idx;
275 	}
276 
277 	codec_dbg(codec, "HDMI: hinfo %p not registered\n", hinfo);
278 	return -EINVAL;
279 }
280 
281 static struct hdmi_spec_per_pin *pcm_idx_to_pin(struct hdmi_spec *spec,
282 						int pcm_idx)
283 {
284 	int i;
285 	struct hdmi_spec_per_pin *per_pin;
286 
287 	for (i = 0; i < spec->num_pins; i++) {
288 		per_pin = get_pin(spec, i);
289 		if (per_pin->pcm_idx == pcm_idx)
290 			return per_pin;
291 	}
292 	return NULL;
293 }
294 
295 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
296 {
297 	struct hdmi_spec *spec = codec->spec;
298 	int cvt_idx;
299 
300 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
301 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
302 			return cvt_idx;
303 
304 	codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
305 	return -EINVAL;
306 }
307 
308 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
309 			struct snd_ctl_elem_info *uinfo)
310 {
311 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
312 	struct hdmi_spec *spec = codec->spec;
313 	struct hdmi_spec_per_pin *per_pin;
314 	struct hdmi_eld *eld;
315 	int pcm_idx;
316 
317 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
318 
319 	pcm_idx = kcontrol->private_value;
320 	mutex_lock(&spec->pcm_lock);
321 	per_pin = pcm_idx_to_pin(spec, pcm_idx);
322 	if (!per_pin) {
323 		/* no pin is bound to the pcm */
324 		uinfo->count = 0;
325 		goto unlock;
326 	}
327 	eld = &per_pin->sink_eld;
328 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
329 
330  unlock:
331 	mutex_unlock(&spec->pcm_lock);
332 	return 0;
333 }
334 
335 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
336 			struct snd_ctl_elem_value *ucontrol)
337 {
338 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
339 	struct hdmi_spec *spec = codec->spec;
340 	struct hdmi_spec_per_pin *per_pin;
341 	struct hdmi_eld *eld;
342 	int pcm_idx;
343 	int err = 0;
344 
345 	pcm_idx = kcontrol->private_value;
346 	mutex_lock(&spec->pcm_lock);
347 	per_pin = pcm_idx_to_pin(spec, pcm_idx);
348 	if (!per_pin) {
349 		/* no pin is bound to the pcm */
350 		memset(ucontrol->value.bytes.data, 0,
351 		       ARRAY_SIZE(ucontrol->value.bytes.data));
352 		goto unlock;
353 	}
354 
355 	eld = &per_pin->sink_eld;
356 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
357 	    eld->eld_size > ELD_MAX_SIZE) {
358 		snd_BUG();
359 		err = -EINVAL;
360 		goto unlock;
361 	}
362 
363 	memset(ucontrol->value.bytes.data, 0,
364 	       ARRAY_SIZE(ucontrol->value.bytes.data));
365 	if (eld->eld_valid)
366 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
367 		       eld->eld_size);
368 
369  unlock:
370 	mutex_unlock(&spec->pcm_lock);
371 	return err;
372 }
373 
374 static const struct snd_kcontrol_new eld_bytes_ctl = {
375 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
376 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
377 	.name = "ELD",
378 	.info = hdmi_eld_ctl_info,
379 	.get = hdmi_eld_ctl_get,
380 };
381 
382 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
383 			int device)
384 {
385 	struct snd_kcontrol *kctl;
386 	struct hdmi_spec *spec = codec->spec;
387 	int err;
388 
389 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
390 	if (!kctl)
391 		return -ENOMEM;
392 	kctl->private_value = pcm_idx;
393 	kctl->id.device = device;
394 
395 	/* no pin nid is associated with the kctl now
396 	 * tbd: associate pin nid to eld ctl later
397 	 */
398 	err = snd_hda_ctl_add(codec, 0, kctl);
399 	if (err < 0)
400 		return err;
401 
402 	get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
403 	return 0;
404 }
405 
406 #ifdef BE_PARANOID
407 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
408 				int *packet_index, int *byte_index)
409 {
410 	int val;
411 
412 	val = snd_hda_codec_read(codec, pin_nid, 0,
413 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
414 
415 	*packet_index = val >> 5;
416 	*byte_index = val & 0x1f;
417 }
418 #endif
419 
420 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
421 				int packet_index, int byte_index)
422 {
423 	int val;
424 
425 	val = (packet_index << 5) | (byte_index & 0x1f);
426 
427 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
428 }
429 
430 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
431 				unsigned char val)
432 {
433 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
434 }
435 
436 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
437 {
438 	struct hdmi_spec *spec = codec->spec;
439 	int pin_out;
440 
441 	/* Unmute */
442 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
443 		snd_hda_codec_write(codec, pin_nid, 0,
444 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
445 
446 	if (spec->dyn_pin_out)
447 		/* Disable pin out until stream is active */
448 		pin_out = 0;
449 	else
450 		/* Enable pin out: some machines with GM965 gets broken output
451 		 * when the pin is disabled or changed while using with HDMI
452 		 */
453 		pin_out = PIN_OUT;
454 
455 	snd_hda_codec_write(codec, pin_nid, 0,
456 			    AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
457 }
458 
459 /*
460  * ELD proc files
461  */
462 
463 #ifdef CONFIG_SND_PROC_FS
464 static void print_eld_info(struct snd_info_entry *entry,
465 			   struct snd_info_buffer *buffer)
466 {
467 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
468 
469 	mutex_lock(&per_pin->lock);
470 	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
471 	mutex_unlock(&per_pin->lock);
472 }
473 
474 static void write_eld_info(struct snd_info_entry *entry,
475 			   struct snd_info_buffer *buffer)
476 {
477 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
478 
479 	mutex_lock(&per_pin->lock);
480 	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
481 	mutex_unlock(&per_pin->lock);
482 }
483 
484 static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
485 {
486 	char name[32];
487 	struct hda_codec *codec = per_pin->codec;
488 	struct snd_info_entry *entry;
489 	int err;
490 
491 	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
492 	err = snd_card_proc_new(codec->card, name, &entry);
493 	if (err < 0)
494 		return err;
495 
496 	snd_info_set_text_ops(entry, per_pin, print_eld_info);
497 	entry->c.text.write = write_eld_info;
498 	entry->mode |= 0200;
499 	per_pin->proc_entry = entry;
500 
501 	return 0;
502 }
503 
504 static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
505 {
506 	if (!per_pin->codec->bus->shutdown) {
507 		snd_info_free_entry(per_pin->proc_entry);
508 		per_pin->proc_entry = NULL;
509 	}
510 }
511 #else
512 static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
513 			       int index)
514 {
515 	return 0;
516 }
517 static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
518 {
519 }
520 #endif
521 
522 /*
523  * Audio InfoFrame routines
524  */
525 
526 /*
527  * Enable Audio InfoFrame Transmission
528  */
529 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
530 				       hda_nid_t pin_nid)
531 {
532 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
533 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
534 						AC_DIPXMIT_BEST);
535 }
536 
537 /*
538  * Disable Audio InfoFrame Transmission
539  */
540 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
541 				      hda_nid_t pin_nid)
542 {
543 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
544 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
545 						AC_DIPXMIT_DISABLE);
546 }
547 
548 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
549 {
550 #ifdef CONFIG_SND_DEBUG_VERBOSE
551 	int i;
552 	int size;
553 
554 	size = snd_hdmi_get_eld_size(codec, pin_nid);
555 	codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
556 
557 	for (i = 0; i < 8; i++) {
558 		size = snd_hda_codec_read(codec, pin_nid, 0,
559 						AC_VERB_GET_HDMI_DIP_SIZE, i);
560 		codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
561 	}
562 #endif
563 }
564 
565 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
566 {
567 #ifdef BE_PARANOID
568 	int i, j;
569 	int size;
570 	int pi, bi;
571 	for (i = 0; i < 8; i++) {
572 		size = snd_hda_codec_read(codec, pin_nid, 0,
573 						AC_VERB_GET_HDMI_DIP_SIZE, i);
574 		if (size == 0)
575 			continue;
576 
577 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
578 		for (j = 1; j < 1000; j++) {
579 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
580 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
581 			if (pi != i)
582 				codec_dbg(codec, "dip index %d: %d != %d\n",
583 						bi, pi, i);
584 			if (bi == 0) /* byte index wrapped around */
585 				break;
586 		}
587 		codec_dbg(codec,
588 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
589 			i, size, j);
590 	}
591 #endif
592 }
593 
594 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
595 {
596 	u8 *bytes = (u8 *)hdmi_ai;
597 	u8 sum = 0;
598 	int i;
599 
600 	hdmi_ai->checksum = 0;
601 
602 	for (i = 0; i < sizeof(*hdmi_ai); i++)
603 		sum += bytes[i];
604 
605 	hdmi_ai->checksum = -sum;
606 }
607 
608 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
609 				      hda_nid_t pin_nid,
610 				      u8 *dip, int size)
611 {
612 	int i;
613 
614 	hdmi_debug_dip_size(codec, pin_nid);
615 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
616 
617 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
618 	for (i = 0; i < size; i++)
619 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
620 }
621 
622 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
623 				    u8 *dip, int size)
624 {
625 	u8 val;
626 	int i;
627 
628 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
629 							    != AC_DIPXMIT_BEST)
630 		return false;
631 
632 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
633 	for (i = 0; i < size; i++) {
634 		val = snd_hda_codec_read(codec, pin_nid, 0,
635 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
636 		if (val != dip[i])
637 			return false;
638 	}
639 
640 	return true;
641 }
642 
643 static int hdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
644 			    int dev_id, unsigned char *buf, int *eld_size)
645 {
646 	snd_hda_set_dev_select(codec, nid, dev_id);
647 
648 	return snd_hdmi_get_eld(codec, nid, buf, eld_size);
649 }
650 
651 static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
652 				     hda_nid_t pin_nid, int dev_id,
653 				     int ca, int active_channels,
654 				     int conn_type)
655 {
656 	union audio_infoframe ai;
657 
658 	memset(&ai, 0, sizeof(ai));
659 	if (conn_type == 0) { /* HDMI */
660 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
661 
662 		hdmi_ai->type		= 0x84;
663 		hdmi_ai->ver		= 0x01;
664 		hdmi_ai->len		= 0x0a;
665 		hdmi_ai->CC02_CT47	= active_channels - 1;
666 		hdmi_ai->CA		= ca;
667 		hdmi_checksum_audio_infoframe(hdmi_ai);
668 	} else if (conn_type == 1) { /* DisplayPort */
669 		struct dp_audio_infoframe *dp_ai = &ai.dp;
670 
671 		dp_ai->type		= 0x84;
672 		dp_ai->len		= 0x1b;
673 		dp_ai->ver		= 0x11 << 2;
674 		dp_ai->CC02_CT47	= active_channels - 1;
675 		dp_ai->CA		= ca;
676 	} else {
677 		codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
678 			    pin_nid);
679 		return;
680 	}
681 
682 	snd_hda_set_dev_select(codec, pin_nid, dev_id);
683 
684 	/*
685 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
686 	 * sizeof(*dp_ai) to avoid partial match/update problems when
687 	 * the user switches between HDMI/DP monitors.
688 	 */
689 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
690 					sizeof(ai))) {
691 		codec_dbg(codec,
692 			  "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
693 			    pin_nid,
694 			    active_channels, ca);
695 		hdmi_stop_infoframe_trans(codec, pin_nid);
696 		hdmi_fill_audio_infoframe(codec, pin_nid,
697 					    ai.bytes, sizeof(ai));
698 		hdmi_start_infoframe_trans(codec, pin_nid);
699 	}
700 }
701 
702 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
703 				       struct hdmi_spec_per_pin *per_pin,
704 				       bool non_pcm)
705 {
706 	struct hdmi_spec *spec = codec->spec;
707 	struct hdac_chmap *chmap = &spec->chmap;
708 	hda_nid_t pin_nid = per_pin->pin_nid;
709 	int dev_id = per_pin->dev_id;
710 	int channels = per_pin->channels;
711 	int active_channels;
712 	struct hdmi_eld *eld;
713 	int ca;
714 
715 	if (!channels)
716 		return;
717 
718 	snd_hda_set_dev_select(codec, pin_nid, dev_id);
719 
720 	/* some HW (e.g. HSW+) needs reprogramming the amp at each time */
721 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
722 		snd_hda_codec_write(codec, pin_nid, 0,
723 					    AC_VERB_SET_AMP_GAIN_MUTE,
724 					    AMP_OUT_UNMUTE);
725 
726 	eld = &per_pin->sink_eld;
727 
728 	ca = snd_hdac_channel_allocation(&codec->core,
729 			eld->info.spk_alloc, channels,
730 			per_pin->chmap_set, non_pcm, per_pin->chmap);
731 
732 	active_channels = snd_hdac_get_active_channels(ca);
733 
734 	chmap->ops.set_channel_count(&codec->core, per_pin->cvt_nid,
735 						active_channels);
736 
737 	/*
738 	 * always configure channel mapping, it may have been changed by the
739 	 * user in the meantime
740 	 */
741 	snd_hdac_setup_channel_mapping(&spec->chmap,
742 				pin_nid, non_pcm, ca, channels,
743 				per_pin->chmap, per_pin->chmap_set);
744 
745 	spec->ops.pin_setup_infoframe(codec, pin_nid, dev_id,
746 				      ca, active_channels, eld->info.conn_type);
747 
748 	per_pin->non_pcm = non_pcm;
749 }
750 
751 /*
752  * Unsolicited events
753  */
754 
755 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
756 
757 static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid,
758 				      int dev_id)
759 {
760 	struct hdmi_spec *spec = codec->spec;
761 	int pin_idx = pin_id_to_pin_index(codec, nid, dev_id);
762 
763 	if (pin_idx < 0)
764 		return;
765 	mutex_lock(&spec->pcm_lock);
766 	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
767 		snd_hda_jack_report_sync(codec);
768 	mutex_unlock(&spec->pcm_lock);
769 }
770 
771 static void jack_callback(struct hda_codec *codec,
772 			  struct hda_jack_callback *jack)
773 {
774 	/* stop polling when notification is enabled */
775 	if (codec_has_acomp(codec))
776 		return;
777 
778 	check_presence_and_report(codec, jack->nid, jack->dev_id);
779 }
780 
781 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
782 {
783 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
784 	struct hda_jack_tbl *jack;
785 
786 	if (codec->dp_mst) {
787 		int dev_entry =
788 			(res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
789 
790 		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, dev_entry);
791 	} else {
792 		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, 0);
793 	}
794 	if (!jack)
795 		return;
796 	jack->jack_dirty = 1;
797 
798 	codec_dbg(codec,
799 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
800 		codec->addr, jack->nid, jack->dev_id, !!(res & AC_UNSOL_RES_IA),
801 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
802 
803 	check_presence_and_report(codec, jack->nid, jack->dev_id);
804 }
805 
806 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
807 {
808 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
809 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
810 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
811 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
812 
813 	codec_info(codec,
814 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
815 		codec->addr,
816 		tag,
817 		subtag,
818 		cp_state,
819 		cp_ready);
820 
821 	/* TODO */
822 	if (cp_state)
823 		;
824 	if (cp_ready)
825 		;
826 }
827 
828 
829 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
830 {
831 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
832 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
833 	struct hda_jack_tbl *jack;
834 
835 	if (codec_has_acomp(codec))
836 		return;
837 
838 	if (codec->dp_mst) {
839 		int dev_entry =
840 			(res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
841 
842 		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, dev_entry);
843 	} else {
844 		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, 0);
845 	}
846 
847 	if (!jack) {
848 		codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
849 		return;
850 	}
851 
852 	if (subtag == 0)
853 		hdmi_intrinsic_event(codec, res);
854 	else
855 		hdmi_non_intrinsic_event(codec, res);
856 }
857 
858 static void haswell_verify_D0(struct hda_codec *codec,
859 		hda_nid_t cvt_nid, hda_nid_t nid)
860 {
861 	int pwr;
862 
863 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
864 	 * thus pins could only choose converter 0 for use. Make sure the
865 	 * converters are in correct power state */
866 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
867 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
868 
869 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
870 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
871 				    AC_PWRST_D0);
872 		msleep(40);
873 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
874 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
875 		codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
876 	}
877 }
878 
879 /*
880  * Callbacks
881  */
882 
883 /* HBR should be Non-PCM, 8 channels */
884 #define is_hbr_format(format) \
885 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
886 
887 static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
888 			      int dev_id, bool hbr)
889 {
890 	int pinctl, new_pinctl;
891 
892 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
893 		snd_hda_set_dev_select(codec, pin_nid, dev_id);
894 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
895 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
896 
897 		if (pinctl < 0)
898 			return hbr ? -EINVAL : 0;
899 
900 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
901 		if (hbr)
902 			new_pinctl |= AC_PINCTL_EPT_HBR;
903 		else
904 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
905 
906 		codec_dbg(codec,
907 			  "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
908 			    pin_nid,
909 			    pinctl == new_pinctl ? "" : "new-",
910 			    new_pinctl);
911 
912 		if (pinctl != new_pinctl)
913 			snd_hda_codec_write(codec, pin_nid, 0,
914 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
915 					    new_pinctl);
916 	} else if (hbr)
917 		return -EINVAL;
918 
919 	return 0;
920 }
921 
922 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
923 			      hda_nid_t pin_nid, int dev_id,
924 			      u32 stream_tag, int format)
925 {
926 	struct hdmi_spec *spec = codec->spec;
927 	unsigned int param;
928 	int err;
929 
930 	err = spec->ops.pin_hbr_setup(codec, pin_nid, dev_id,
931 				      is_hbr_format(format));
932 
933 	if (err) {
934 		codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
935 		return err;
936 	}
937 
938 	if (spec->intel_hsw_fixup) {
939 
940 		/*
941 		 * on recent platforms IEC Coding Type is required for HBR
942 		 * support, read current Digital Converter settings and set
943 		 * ICT bitfield if needed.
944 		 */
945 		param = snd_hda_codec_read(codec, cvt_nid, 0,
946 					   AC_VERB_GET_DIGI_CONVERT_1, 0);
947 
948 		param = (param >> 16) & ~(AC_DIG3_ICT);
949 
950 		/* on recent platforms ICT mode is required for HBR support */
951 		if (is_hbr_format(format))
952 			param |= 0x1;
953 
954 		snd_hda_codec_write(codec, cvt_nid, 0,
955 				    AC_VERB_SET_DIGI_CONVERT_3, param);
956 	}
957 
958 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
959 	return 0;
960 }
961 
962 /* Try to find an available converter
963  * If pin_idx is less then zero, just try to find an available converter.
964  * Otherwise, try to find an available converter and get the cvt mux index
965  * of the pin.
966  */
967 static int hdmi_choose_cvt(struct hda_codec *codec,
968 			   int pin_idx, int *cvt_id)
969 {
970 	struct hdmi_spec *spec = codec->spec;
971 	struct hdmi_spec_per_pin *per_pin;
972 	struct hdmi_spec_per_cvt *per_cvt = NULL;
973 	int cvt_idx, mux_idx = 0;
974 
975 	/* pin_idx < 0 means no pin will be bound to the converter */
976 	if (pin_idx < 0)
977 		per_pin = NULL;
978 	else
979 		per_pin = get_pin(spec, pin_idx);
980 
981 	/* Dynamically assign converter to stream */
982 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
983 		per_cvt = get_cvt(spec, cvt_idx);
984 
985 		/* Must not already be assigned */
986 		if (per_cvt->assigned)
987 			continue;
988 		if (per_pin == NULL)
989 			break;
990 		/* Must be in pin's mux's list of converters */
991 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
992 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
993 				break;
994 		/* Not in mux list */
995 		if (mux_idx == per_pin->num_mux_nids)
996 			continue;
997 		break;
998 	}
999 
1000 	/* No free converters */
1001 	if (cvt_idx == spec->num_cvts)
1002 		return -EBUSY;
1003 
1004 	if (per_pin != NULL)
1005 		per_pin->mux_idx = mux_idx;
1006 
1007 	if (cvt_id)
1008 		*cvt_id = cvt_idx;
1009 
1010 	return 0;
1011 }
1012 
1013 /* Assure the pin select the right convetor */
1014 static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
1015 			struct hdmi_spec_per_pin *per_pin)
1016 {
1017 	hda_nid_t pin_nid = per_pin->pin_nid;
1018 	int mux_idx, curr;
1019 
1020 	mux_idx = per_pin->mux_idx;
1021 	curr = snd_hda_codec_read(codec, pin_nid, 0,
1022 					  AC_VERB_GET_CONNECT_SEL, 0);
1023 	if (curr != mux_idx)
1024 		snd_hda_codec_write_cache(codec, pin_nid, 0,
1025 					    AC_VERB_SET_CONNECT_SEL,
1026 					    mux_idx);
1027 }
1028 
1029 /* get the mux index for the converter of the pins
1030  * converter's mux index is the same for all pins on Intel platform
1031  */
1032 static int intel_cvt_id_to_mux_idx(struct hdmi_spec *spec,
1033 			hda_nid_t cvt_nid)
1034 {
1035 	int i;
1036 
1037 	for (i = 0; i < spec->num_cvts; i++)
1038 		if (spec->cvt_nids[i] == cvt_nid)
1039 			return i;
1040 	return -EINVAL;
1041 }
1042 
1043 /* Intel HDMI workaround to fix audio routing issue:
1044  * For some Intel display codecs, pins share the same connection list.
1045  * So a conveter can be selected by multiple pins and playback on any of these
1046  * pins will generate sound on the external display, because audio flows from
1047  * the same converter to the display pipeline. Also muting one pin may make
1048  * other pins have no sound output.
1049  * So this function assures that an assigned converter for a pin is not selected
1050  * by any other pins.
1051  */
1052 static void intel_not_share_assigned_cvt(struct hda_codec *codec,
1053 					 hda_nid_t pin_nid,
1054 					 int dev_id, int mux_idx)
1055 {
1056 	struct hdmi_spec *spec = codec->spec;
1057 	hda_nid_t nid;
1058 	int cvt_idx, curr;
1059 	struct hdmi_spec_per_cvt *per_cvt;
1060 	struct hdmi_spec_per_pin *per_pin;
1061 	int pin_idx;
1062 
1063 	/* configure the pins connections */
1064 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1065 		int dev_id_saved;
1066 		int dev_num;
1067 
1068 		per_pin = get_pin(spec, pin_idx);
1069 		/*
1070 		 * pin not connected to monitor
1071 		 * no need to operate on it
1072 		 */
1073 		if (!per_pin->pcm)
1074 			continue;
1075 
1076 		if ((per_pin->pin_nid == pin_nid) &&
1077 			(per_pin->dev_id == dev_id))
1078 			continue;
1079 
1080 		/*
1081 		 * if per_pin->dev_id >= dev_num,
1082 		 * snd_hda_get_dev_select() will fail,
1083 		 * and the following operation is unpredictable.
1084 		 * So skip this situation.
1085 		 */
1086 		dev_num = snd_hda_get_num_devices(codec, per_pin->pin_nid) + 1;
1087 		if (per_pin->dev_id >= dev_num)
1088 			continue;
1089 
1090 		nid = per_pin->pin_nid;
1091 
1092 		/*
1093 		 * Calling this function should not impact
1094 		 * on the device entry selection
1095 		 * So let's save the dev id for each pin,
1096 		 * and restore it when return
1097 		 */
1098 		dev_id_saved = snd_hda_get_dev_select(codec, nid);
1099 		snd_hda_set_dev_select(codec, nid, per_pin->dev_id);
1100 		curr = snd_hda_codec_read(codec, nid, 0,
1101 					  AC_VERB_GET_CONNECT_SEL, 0);
1102 		if (curr != mux_idx) {
1103 			snd_hda_set_dev_select(codec, nid, dev_id_saved);
1104 			continue;
1105 		}
1106 
1107 
1108 		/* choose an unassigned converter. The conveters in the
1109 		 * connection list are in the same order as in the codec.
1110 		 */
1111 		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1112 			per_cvt = get_cvt(spec, cvt_idx);
1113 			if (!per_cvt->assigned) {
1114 				codec_dbg(codec,
1115 					  "choose cvt %d for pin nid %d\n",
1116 					cvt_idx, nid);
1117 				snd_hda_codec_write_cache(codec, nid, 0,
1118 					    AC_VERB_SET_CONNECT_SEL,
1119 					    cvt_idx);
1120 				break;
1121 			}
1122 		}
1123 		snd_hda_set_dev_select(codec, nid, dev_id_saved);
1124 	}
1125 }
1126 
1127 /* A wrapper of intel_not_share_asigned_cvt() */
1128 static void intel_not_share_assigned_cvt_nid(struct hda_codec *codec,
1129 			hda_nid_t pin_nid, int dev_id, hda_nid_t cvt_nid)
1130 {
1131 	int mux_idx;
1132 	struct hdmi_spec *spec = codec->spec;
1133 
1134 	/* On Intel platform, the mapping of converter nid to
1135 	 * mux index of the pins are always the same.
1136 	 * The pin nid may be 0, this means all pins will not
1137 	 * share the converter.
1138 	 */
1139 	mux_idx = intel_cvt_id_to_mux_idx(spec, cvt_nid);
1140 	if (mux_idx >= 0)
1141 		intel_not_share_assigned_cvt(codec, pin_nid, dev_id, mux_idx);
1142 }
1143 
1144 /* skeleton caller of pin_cvt_fixup ops */
1145 static void pin_cvt_fixup(struct hda_codec *codec,
1146 			  struct hdmi_spec_per_pin *per_pin,
1147 			  hda_nid_t cvt_nid)
1148 {
1149 	struct hdmi_spec *spec = codec->spec;
1150 
1151 	if (spec->ops.pin_cvt_fixup)
1152 		spec->ops.pin_cvt_fixup(codec, per_pin, cvt_nid);
1153 }
1154 
1155 /* called in hdmi_pcm_open when no pin is assigned to the PCM
1156  * in dyn_pcm_assign mode.
1157  */
1158 static int hdmi_pcm_open_no_pin(struct hda_pcm_stream *hinfo,
1159 			 struct hda_codec *codec,
1160 			 struct snd_pcm_substream *substream)
1161 {
1162 	struct hdmi_spec *spec = codec->spec;
1163 	struct snd_pcm_runtime *runtime = substream->runtime;
1164 	int cvt_idx, pcm_idx;
1165 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1166 	int err;
1167 
1168 	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1169 	if (pcm_idx < 0)
1170 		return -EINVAL;
1171 
1172 	err = hdmi_choose_cvt(codec, -1, &cvt_idx);
1173 	if (err)
1174 		return err;
1175 
1176 	per_cvt = get_cvt(spec, cvt_idx);
1177 	per_cvt->assigned = 1;
1178 	hinfo->nid = per_cvt->cvt_nid;
1179 
1180 	pin_cvt_fixup(codec, NULL, per_cvt->cvt_nid);
1181 
1182 	set_bit(pcm_idx, &spec->pcm_in_use);
1183 	/* todo: setup spdif ctls assign */
1184 
1185 	/* Initially set the converter's capabilities */
1186 	hinfo->channels_min = per_cvt->channels_min;
1187 	hinfo->channels_max = per_cvt->channels_max;
1188 	hinfo->rates = per_cvt->rates;
1189 	hinfo->formats = per_cvt->formats;
1190 	hinfo->maxbps = per_cvt->maxbps;
1191 
1192 	/* Store the updated parameters */
1193 	runtime->hw.channels_min = hinfo->channels_min;
1194 	runtime->hw.channels_max = hinfo->channels_max;
1195 	runtime->hw.formats = hinfo->formats;
1196 	runtime->hw.rates = hinfo->rates;
1197 
1198 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1199 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1200 	return 0;
1201 }
1202 
1203 /*
1204  * HDA PCM callbacks
1205  */
1206 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1207 			 struct hda_codec *codec,
1208 			 struct snd_pcm_substream *substream)
1209 {
1210 	struct hdmi_spec *spec = codec->spec;
1211 	struct snd_pcm_runtime *runtime = substream->runtime;
1212 	int pin_idx, cvt_idx, pcm_idx;
1213 	struct hdmi_spec_per_pin *per_pin;
1214 	struct hdmi_eld *eld;
1215 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1216 	int err;
1217 
1218 	/* Validate hinfo */
1219 	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1220 	if (pcm_idx < 0)
1221 		return -EINVAL;
1222 
1223 	mutex_lock(&spec->pcm_lock);
1224 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1225 	if (!spec->dyn_pcm_assign) {
1226 		if (snd_BUG_ON(pin_idx < 0)) {
1227 			err = -EINVAL;
1228 			goto unlock;
1229 		}
1230 	} else {
1231 		/* no pin is assigned to the PCM
1232 		 * PA need pcm open successfully when probe
1233 		 */
1234 		if (pin_idx < 0) {
1235 			err = hdmi_pcm_open_no_pin(hinfo, codec, substream);
1236 			goto unlock;
1237 		}
1238 	}
1239 
1240 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx);
1241 	if (err < 0)
1242 		goto unlock;
1243 
1244 	per_cvt = get_cvt(spec, cvt_idx);
1245 	/* Claim converter */
1246 	per_cvt->assigned = 1;
1247 
1248 	set_bit(pcm_idx, &spec->pcm_in_use);
1249 	per_pin = get_pin(spec, pin_idx);
1250 	per_pin->cvt_nid = per_cvt->cvt_nid;
1251 	hinfo->nid = per_cvt->cvt_nid;
1252 
1253 	/* flip stripe flag for the assigned stream if supported */
1254 	if (get_wcaps(codec, per_cvt->cvt_nid) & AC_WCAP_STRIPE)
1255 		azx_stream(get_azx_dev(substream))->stripe = 1;
1256 
1257 	snd_hda_set_dev_select(codec, per_pin->pin_nid, per_pin->dev_id);
1258 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1259 			    AC_VERB_SET_CONNECT_SEL,
1260 			    per_pin->mux_idx);
1261 
1262 	/* configure unused pins to choose other converters */
1263 	pin_cvt_fixup(codec, per_pin, 0);
1264 
1265 	snd_hda_spdif_ctls_assign(codec, pcm_idx, per_cvt->cvt_nid);
1266 
1267 	/* Initially set the converter's capabilities */
1268 	hinfo->channels_min = per_cvt->channels_min;
1269 	hinfo->channels_max = per_cvt->channels_max;
1270 	hinfo->rates = per_cvt->rates;
1271 	hinfo->formats = per_cvt->formats;
1272 	hinfo->maxbps = per_cvt->maxbps;
1273 
1274 	eld = &per_pin->sink_eld;
1275 	/* Restrict capabilities by ELD if this isn't disabled */
1276 	if (!static_hdmi_pcm && eld->eld_valid) {
1277 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1278 		if (hinfo->channels_min > hinfo->channels_max ||
1279 		    !hinfo->rates || !hinfo->formats) {
1280 			per_cvt->assigned = 0;
1281 			hinfo->nid = 0;
1282 			snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1283 			err = -ENODEV;
1284 			goto unlock;
1285 		}
1286 	}
1287 
1288 	/* Store the updated parameters */
1289 	runtime->hw.channels_min = hinfo->channels_min;
1290 	runtime->hw.channels_max = hinfo->channels_max;
1291 	runtime->hw.formats = hinfo->formats;
1292 	runtime->hw.rates = hinfo->rates;
1293 
1294 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1295 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1296  unlock:
1297 	mutex_unlock(&spec->pcm_lock);
1298 	return err;
1299 }
1300 
1301 /*
1302  * HDA/HDMI auto parsing
1303  */
1304 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1305 {
1306 	struct hdmi_spec *spec = codec->spec;
1307 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1308 	hda_nid_t pin_nid = per_pin->pin_nid;
1309 	int dev_id = per_pin->dev_id;
1310 	int conns;
1311 
1312 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1313 		codec_warn(codec,
1314 			   "HDMI: pin %d wcaps %#x does not support connection list\n",
1315 			   pin_nid, get_wcaps(codec, pin_nid));
1316 		return -EINVAL;
1317 	}
1318 
1319 	snd_hda_set_dev_select(codec, pin_nid, dev_id);
1320 
1321 	if (spec->intel_hsw_fixup) {
1322 		conns = spec->num_cvts;
1323 		memcpy(per_pin->mux_nids, spec->cvt_nids,
1324 		       sizeof(hda_nid_t) * conns);
1325 	} else {
1326 		conns = snd_hda_get_raw_connections(codec, pin_nid,
1327 						    per_pin->mux_nids,
1328 						    HDA_MAX_CONNECTIONS);
1329 	}
1330 
1331 	/* all the device entries on the same pin have the same conn list */
1332 	per_pin->num_mux_nids = conns;
1333 
1334 	return 0;
1335 }
1336 
1337 static int hdmi_find_pcm_slot(struct hdmi_spec *spec,
1338 			      struct hdmi_spec_per_pin *per_pin)
1339 {
1340 	int i;
1341 
1342 	/*
1343 	 * generic_hdmi_build_pcms() may allocate extra PCMs on some
1344 	 * platforms (with maximum of 'num_nids + dev_num - 1')
1345 	 *
1346 	 * The per_pin of pin_nid_idx=n and dev_id=m prefers to get pcm-n
1347 	 * if m==0. This guarantees that dynamic pcm assignments are compatible
1348 	 * with the legacy static per_pin-pcm assignment that existed in the
1349 	 * days before DP-MST.
1350 	 *
1351 	 * Intel DP-MST prefers this legacy behavior for compatibility, too.
1352 	 *
1353 	 * per_pin of m!=0 prefers to get pcm=(num_nids + (m - 1)).
1354 	 */
1355 
1356 	if (per_pin->dev_id == 0 || spec->intel_hsw_fixup) {
1357 		if (!test_bit(per_pin->pin_nid_idx, &spec->pcm_bitmap))
1358 			return per_pin->pin_nid_idx;
1359 	} else {
1360 		i = spec->num_nids + (per_pin->dev_id - 1);
1361 		if (i < spec->pcm_used && !(test_bit(i, &spec->pcm_bitmap)))
1362 			return i;
1363 	}
1364 
1365 	/* have a second try; check the area over num_nids */
1366 	for (i = spec->num_nids; i < spec->pcm_used; i++) {
1367 		if (!test_bit(i, &spec->pcm_bitmap))
1368 			return i;
1369 	}
1370 
1371 	/* the last try; check the empty slots in pins */
1372 	for (i = 0; i < spec->num_nids; i++) {
1373 		if (!test_bit(i, &spec->pcm_bitmap))
1374 			return i;
1375 	}
1376 	return -EBUSY;
1377 }
1378 
1379 static void hdmi_attach_hda_pcm(struct hdmi_spec *spec,
1380 				struct hdmi_spec_per_pin *per_pin)
1381 {
1382 	int idx;
1383 
1384 	/* pcm already be attached to the pin */
1385 	if (per_pin->pcm)
1386 		return;
1387 	idx = hdmi_find_pcm_slot(spec, per_pin);
1388 	if (idx == -EBUSY)
1389 		return;
1390 	per_pin->pcm_idx = idx;
1391 	per_pin->pcm = get_hdmi_pcm(spec, idx);
1392 	set_bit(idx, &spec->pcm_bitmap);
1393 }
1394 
1395 static void hdmi_detach_hda_pcm(struct hdmi_spec *spec,
1396 				struct hdmi_spec_per_pin *per_pin)
1397 {
1398 	int idx;
1399 
1400 	/* pcm already be detached from the pin */
1401 	if (!per_pin->pcm)
1402 		return;
1403 	idx = per_pin->pcm_idx;
1404 	per_pin->pcm_idx = -1;
1405 	per_pin->pcm = NULL;
1406 	if (idx >= 0 && idx < spec->pcm_used)
1407 		clear_bit(idx, &spec->pcm_bitmap);
1408 }
1409 
1410 static int hdmi_get_pin_cvt_mux(struct hdmi_spec *spec,
1411 		struct hdmi_spec_per_pin *per_pin, hda_nid_t cvt_nid)
1412 {
1413 	int mux_idx;
1414 
1415 	for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1416 		if (per_pin->mux_nids[mux_idx] == cvt_nid)
1417 			break;
1418 	return mux_idx;
1419 }
1420 
1421 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid);
1422 
1423 static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
1424 			   struct hdmi_spec_per_pin *per_pin)
1425 {
1426 	struct hda_codec *codec = per_pin->codec;
1427 	struct hda_pcm *pcm;
1428 	struct hda_pcm_stream *hinfo;
1429 	struct snd_pcm_substream *substream;
1430 	int mux_idx;
1431 	bool non_pcm;
1432 
1433 	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1434 		pcm = get_pcm_rec(spec, per_pin->pcm_idx);
1435 	else
1436 		return;
1437 	if (!pcm->pcm)
1438 		return;
1439 	if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
1440 		return;
1441 
1442 	/* hdmi audio only uses playback and one substream */
1443 	hinfo = pcm->stream;
1444 	substream = pcm->pcm->streams[0].substream;
1445 
1446 	per_pin->cvt_nid = hinfo->nid;
1447 
1448 	mux_idx = hdmi_get_pin_cvt_mux(spec, per_pin, hinfo->nid);
1449 	if (mux_idx < per_pin->num_mux_nids) {
1450 		snd_hda_set_dev_select(codec, per_pin->pin_nid,
1451 				   per_pin->dev_id);
1452 		snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1453 				AC_VERB_SET_CONNECT_SEL,
1454 				mux_idx);
1455 	}
1456 	snd_hda_spdif_ctls_assign(codec, per_pin->pcm_idx, hinfo->nid);
1457 
1458 	non_pcm = check_non_pcm_per_cvt(codec, hinfo->nid);
1459 	if (substream->runtime)
1460 		per_pin->channels = substream->runtime->channels;
1461 	per_pin->setup = true;
1462 	per_pin->mux_idx = mux_idx;
1463 
1464 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1465 }
1466 
1467 static void hdmi_pcm_reset_pin(struct hdmi_spec *spec,
1468 			   struct hdmi_spec_per_pin *per_pin)
1469 {
1470 	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1471 		snd_hda_spdif_ctls_unassign(per_pin->codec, per_pin->pcm_idx);
1472 
1473 	per_pin->chmap_set = false;
1474 	memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1475 
1476 	per_pin->setup = false;
1477 	per_pin->channels = 0;
1478 }
1479 
1480 /* update per_pin ELD from the given new ELD;
1481  * setup info frame and notification accordingly
1482  */
1483 static bool update_eld(struct hda_codec *codec,
1484 		       struct hdmi_spec_per_pin *per_pin,
1485 		       struct hdmi_eld *eld)
1486 {
1487 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1488 	struct hdmi_spec *spec = codec->spec;
1489 	bool old_eld_valid = pin_eld->eld_valid;
1490 	bool eld_changed;
1491 	int pcm_idx;
1492 
1493 	/* for monitor disconnection, save pcm_idx firstly */
1494 	pcm_idx = per_pin->pcm_idx;
1495 	if (spec->dyn_pcm_assign) {
1496 		if (eld->eld_valid) {
1497 			hdmi_attach_hda_pcm(spec, per_pin);
1498 			hdmi_pcm_setup_pin(spec, per_pin);
1499 		} else {
1500 			hdmi_pcm_reset_pin(spec, per_pin);
1501 			hdmi_detach_hda_pcm(spec, per_pin);
1502 		}
1503 	}
1504 	/* if pcm_idx == -1, it means this is in monitor connection event
1505 	 * we can get the correct pcm_idx now.
1506 	 */
1507 	if (pcm_idx == -1)
1508 		pcm_idx = per_pin->pcm_idx;
1509 
1510 	if (eld->eld_valid)
1511 		snd_hdmi_show_eld(codec, &eld->info);
1512 
1513 	eld_changed = (pin_eld->eld_valid != eld->eld_valid);
1514 	eld_changed |= (pin_eld->monitor_present != eld->monitor_present);
1515 	if (!eld_changed && eld->eld_valid && pin_eld->eld_valid)
1516 		if (pin_eld->eld_size != eld->eld_size ||
1517 		    memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1518 			   eld->eld_size) != 0)
1519 			eld_changed = true;
1520 
1521 	if (eld_changed) {
1522 		pin_eld->monitor_present = eld->monitor_present;
1523 		pin_eld->eld_valid = eld->eld_valid;
1524 		pin_eld->eld_size = eld->eld_size;
1525 		if (eld->eld_valid)
1526 			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1527 			       eld->eld_size);
1528 		pin_eld->info = eld->info;
1529 	}
1530 
1531 	/*
1532 	 * Re-setup pin and infoframe. This is needed e.g. when
1533 	 * - sink is first plugged-in
1534 	 * - transcoder can change during stream playback on Haswell
1535 	 *   and this can make HW reset converter selection on a pin.
1536 	 */
1537 	if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
1538 		pin_cvt_fixup(codec, per_pin, 0);
1539 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1540 	}
1541 
1542 	if (eld_changed && pcm_idx >= 0)
1543 		snd_ctl_notify(codec->card,
1544 			       SNDRV_CTL_EVENT_MASK_VALUE |
1545 			       SNDRV_CTL_EVENT_MASK_INFO,
1546 			       &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
1547 	return eld_changed;
1548 }
1549 
1550 /* update ELD and jack state via HD-audio verbs */
1551 static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
1552 					 int repoll)
1553 {
1554 	struct hda_jack_tbl *jack;
1555 	struct hda_codec *codec = per_pin->codec;
1556 	struct hdmi_spec *spec = codec->spec;
1557 	struct hdmi_eld *eld = &spec->temp_eld;
1558 	hda_nid_t pin_nid = per_pin->pin_nid;
1559 	int dev_id = per_pin->dev_id;
1560 	/*
1561 	 * Always execute a GetPinSense verb here, even when called from
1562 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1563 	 * response's PD bit is not the real PD value, but indicates that
1564 	 * the real PD value changed. An older version of the HD-audio
1565 	 * specification worked this way. Hence, we just ignore the data in
1566 	 * the unsolicited response to avoid custom WARs.
1567 	 */
1568 	int present;
1569 	bool ret;
1570 	bool do_repoll = false;
1571 
1572 	present = snd_hda_jack_pin_sense(codec, pin_nid, dev_id);
1573 
1574 	mutex_lock(&per_pin->lock);
1575 	eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1576 	if (eld->monitor_present)
1577 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1578 	else
1579 		eld->eld_valid = false;
1580 
1581 	codec_dbg(codec,
1582 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1583 		codec->addr, pin_nid, eld->monitor_present, eld->eld_valid);
1584 
1585 	if (eld->eld_valid) {
1586 		if (spec->ops.pin_get_eld(codec, pin_nid, dev_id,
1587 					  eld->eld_buffer, &eld->eld_size) < 0)
1588 			eld->eld_valid = false;
1589 		else {
1590 			if (snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
1591 						    eld->eld_size) < 0)
1592 				eld->eld_valid = false;
1593 		}
1594 		if (!eld->eld_valid && repoll)
1595 			do_repoll = true;
1596 	}
1597 
1598 	if (do_repoll)
1599 		schedule_delayed_work(&per_pin->work, msecs_to_jiffies(300));
1600 	else
1601 		update_eld(codec, per_pin, eld);
1602 
1603 	ret = !repoll || !eld->monitor_present || eld->eld_valid;
1604 
1605 	jack = snd_hda_jack_tbl_get_mst(codec, pin_nid, per_pin->dev_id);
1606 	if (jack) {
1607 		jack->block_report = !ret;
1608 		jack->pin_sense = (eld->monitor_present && eld->eld_valid) ?
1609 			AC_PINSENSE_PRESENCE : 0;
1610 	}
1611 	mutex_unlock(&per_pin->lock);
1612 	return ret;
1613 }
1614 
1615 static struct snd_jack *pin_idx_to_jack(struct hda_codec *codec,
1616 				 struct hdmi_spec_per_pin *per_pin)
1617 {
1618 	struct hdmi_spec *spec = codec->spec;
1619 	struct snd_jack *jack = NULL;
1620 	struct hda_jack_tbl *jack_tbl;
1621 
1622 	/* if !dyn_pcm_assign, get jack from hda_jack_tbl
1623 	 * in !dyn_pcm_assign case, spec->pcm_rec[].jack is not
1624 	 * NULL even after snd_hda_jack_tbl_clear() is called to
1625 	 * free snd_jack. This may cause access invalid memory
1626 	 * when calling snd_jack_report
1627 	 */
1628 	if (per_pin->pcm_idx >= 0 && spec->dyn_pcm_assign)
1629 		jack = spec->pcm_rec[per_pin->pcm_idx].jack;
1630 	else if (!spec->dyn_pcm_assign) {
1631 		/*
1632 		 * jack tbl doesn't support DP MST
1633 		 * DP MST will use dyn_pcm_assign,
1634 		 * so DP MST will never come here
1635 		 */
1636 		jack_tbl = snd_hda_jack_tbl_get_mst(codec, per_pin->pin_nid,
1637 						    per_pin->dev_id);
1638 		if (jack_tbl)
1639 			jack = jack_tbl->jack;
1640 	}
1641 	return jack;
1642 }
1643 
1644 /* update ELD and jack state via audio component */
1645 static void sync_eld_via_acomp(struct hda_codec *codec,
1646 			       struct hdmi_spec_per_pin *per_pin)
1647 {
1648 	struct hdmi_spec *spec = codec->spec;
1649 	struct hdmi_eld *eld = &spec->temp_eld;
1650 	struct snd_jack *jack = NULL;
1651 	bool changed;
1652 	int size;
1653 
1654 	mutex_lock(&per_pin->lock);
1655 	eld->monitor_present = false;
1656 	size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid,
1657 				      per_pin->dev_id, &eld->monitor_present,
1658 				      eld->eld_buffer, ELD_MAX_SIZE);
1659 	if (size > 0) {
1660 		size = min(size, ELD_MAX_SIZE);
1661 		if (snd_hdmi_parse_eld(codec, &eld->info,
1662 				       eld->eld_buffer, size) < 0)
1663 			size = -EINVAL;
1664 	}
1665 
1666 	if (size > 0) {
1667 		eld->eld_valid = true;
1668 		eld->eld_size = size;
1669 	} else {
1670 		eld->eld_valid = false;
1671 		eld->eld_size = 0;
1672 	}
1673 
1674 	/* pcm_idx >=0 before update_eld() means it is in monitor
1675 	 * disconnected event. Jack must be fetched before update_eld()
1676 	 */
1677 	jack = pin_idx_to_jack(codec, per_pin);
1678 	changed = update_eld(codec, per_pin, eld);
1679 	if (jack == NULL)
1680 		jack = pin_idx_to_jack(codec, per_pin);
1681 	if (changed && jack)
1682 		snd_jack_report(jack,
1683 				(eld->monitor_present && eld->eld_valid) ?
1684 				SND_JACK_AVOUT : 0);
1685 	mutex_unlock(&per_pin->lock);
1686 }
1687 
1688 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1689 {
1690 	struct hda_codec *codec = per_pin->codec;
1691 	int ret;
1692 
1693 	/* no temporary power up/down needed for component notifier */
1694 	if (!codec_has_acomp(codec)) {
1695 		ret = snd_hda_power_up_pm(codec);
1696 		if (ret < 0 && pm_runtime_suspended(hda_codec_dev(codec))) {
1697 			snd_hda_power_down_pm(codec);
1698 			return false;
1699 		}
1700 		ret = hdmi_present_sense_via_verbs(per_pin, repoll);
1701 		snd_hda_power_down_pm(codec);
1702 	} else {
1703 		sync_eld_via_acomp(codec, per_pin);
1704 		ret = false; /* don't call snd_hda_jack_report_sync() */
1705 	}
1706 
1707 	return ret;
1708 }
1709 
1710 static void hdmi_repoll_eld(struct work_struct *work)
1711 {
1712 	struct hdmi_spec_per_pin *per_pin =
1713 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1714 	struct hda_codec *codec = per_pin->codec;
1715 	struct hdmi_spec *spec = codec->spec;
1716 	struct hda_jack_tbl *jack;
1717 
1718 	jack = snd_hda_jack_tbl_get_mst(codec, per_pin->pin_nid,
1719 					per_pin->dev_id);
1720 	if (jack)
1721 		jack->jack_dirty = 1;
1722 
1723 	if (per_pin->repoll_count++ > 6)
1724 		per_pin->repoll_count = 0;
1725 
1726 	mutex_lock(&spec->pcm_lock);
1727 	if (hdmi_present_sense(per_pin, per_pin->repoll_count))
1728 		snd_hda_jack_report_sync(per_pin->codec);
1729 	mutex_unlock(&spec->pcm_lock);
1730 }
1731 
1732 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1733 {
1734 	struct hdmi_spec *spec = codec->spec;
1735 	unsigned int caps, config;
1736 	int pin_idx;
1737 	struct hdmi_spec_per_pin *per_pin;
1738 	int err;
1739 	int dev_num, i;
1740 
1741 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1742 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1743 		return 0;
1744 
1745 	/*
1746 	 * For DP MST audio, Configuration Default is the same for
1747 	 * all device entries on the same pin
1748 	 */
1749 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1750 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1751 		return 0;
1752 
1753 	/*
1754 	 * To simplify the implementation, malloc all
1755 	 * the virtual pins in the initialization statically
1756 	 */
1757 	if (spec->intel_hsw_fixup) {
1758 		/*
1759 		 * On Intel platforms, device entries number is
1760 		 * changed dynamically. If there is a DP MST
1761 		 * hub connected, the device entries number is 3.
1762 		 * Otherwise, it is 1.
1763 		 * Here we manually set dev_num to 3, so that
1764 		 * we can initialize all the device entries when
1765 		 * bootup statically.
1766 		 */
1767 		dev_num = 3;
1768 		spec->dev_num = 3;
1769 	} else if (spec->dyn_pcm_assign && codec->dp_mst) {
1770 		dev_num = snd_hda_get_num_devices(codec, pin_nid) + 1;
1771 		/*
1772 		 * spec->dev_num is the maxinum number of device entries
1773 		 * among all the pins
1774 		 */
1775 		spec->dev_num = (spec->dev_num > dev_num) ?
1776 			spec->dev_num : dev_num;
1777 	} else {
1778 		/*
1779 		 * If the platform doesn't support DP MST,
1780 		 * manually set dev_num to 1. This means
1781 		 * the pin has only one device entry.
1782 		 */
1783 		dev_num = 1;
1784 		spec->dev_num = 1;
1785 	}
1786 
1787 	for (i = 0; i < dev_num; i++) {
1788 		pin_idx = spec->num_pins;
1789 		per_pin = snd_array_new(&spec->pins);
1790 
1791 		if (!per_pin)
1792 			return -ENOMEM;
1793 
1794 		if (spec->dyn_pcm_assign) {
1795 			per_pin->pcm = NULL;
1796 			per_pin->pcm_idx = -1;
1797 		} else {
1798 			per_pin->pcm = get_hdmi_pcm(spec, pin_idx);
1799 			per_pin->pcm_idx = pin_idx;
1800 		}
1801 		per_pin->pin_nid = pin_nid;
1802 		per_pin->pin_nid_idx = spec->num_nids;
1803 		per_pin->dev_id = i;
1804 		per_pin->non_pcm = false;
1805 		snd_hda_set_dev_select(codec, pin_nid, i);
1806 		err = hdmi_read_pin_conn(codec, pin_idx);
1807 		if (err < 0)
1808 			return err;
1809 		spec->num_pins++;
1810 	}
1811 	spec->num_nids++;
1812 
1813 	return 0;
1814 }
1815 
1816 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1817 {
1818 	struct hdmi_spec *spec = codec->spec;
1819 	struct hdmi_spec_per_cvt *per_cvt;
1820 	unsigned int chans;
1821 	int err;
1822 
1823 	chans = get_wcaps(codec, cvt_nid);
1824 	chans = get_wcaps_channels(chans);
1825 
1826 	per_cvt = snd_array_new(&spec->cvts);
1827 	if (!per_cvt)
1828 		return -ENOMEM;
1829 
1830 	per_cvt->cvt_nid = cvt_nid;
1831 	per_cvt->channels_min = 2;
1832 	if (chans <= 16) {
1833 		per_cvt->channels_max = chans;
1834 		if (chans > spec->chmap.channels_max)
1835 			spec->chmap.channels_max = chans;
1836 	}
1837 
1838 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1839 					  &per_cvt->rates,
1840 					  &per_cvt->formats,
1841 					  &per_cvt->maxbps);
1842 	if (err < 0)
1843 		return err;
1844 
1845 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1846 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1847 	spec->num_cvts++;
1848 
1849 	return 0;
1850 }
1851 
1852 static int hdmi_parse_codec(struct hda_codec *codec)
1853 {
1854 	hda_nid_t nid;
1855 	int i, nodes;
1856 
1857 	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
1858 	if (!nid || nodes < 0) {
1859 		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
1860 		return -EINVAL;
1861 	}
1862 
1863 	for (i = 0; i < nodes; i++, nid++) {
1864 		unsigned int caps;
1865 		unsigned int type;
1866 
1867 		caps = get_wcaps(codec, nid);
1868 		type = get_wcaps_type(caps);
1869 
1870 		if (!(caps & AC_WCAP_DIGITAL))
1871 			continue;
1872 
1873 		switch (type) {
1874 		case AC_WID_AUD_OUT:
1875 			hdmi_add_cvt(codec, nid);
1876 			break;
1877 		case AC_WID_PIN:
1878 			hdmi_add_pin(codec, nid);
1879 			break;
1880 		}
1881 	}
1882 
1883 	return 0;
1884 }
1885 
1886 /*
1887  */
1888 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1889 {
1890 	struct hda_spdif_out *spdif;
1891 	bool non_pcm;
1892 
1893 	mutex_lock(&codec->spdif_mutex);
1894 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1895 	/* Add sanity check to pass klockwork check.
1896 	 * This should never happen.
1897 	 */
1898 	if (WARN_ON(spdif == NULL))
1899 		return true;
1900 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1901 	mutex_unlock(&codec->spdif_mutex);
1902 	return non_pcm;
1903 }
1904 
1905 /*
1906  * HDMI callbacks
1907  */
1908 
1909 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1910 					   struct hda_codec *codec,
1911 					   unsigned int stream_tag,
1912 					   unsigned int format,
1913 					   struct snd_pcm_substream *substream)
1914 {
1915 	hda_nid_t cvt_nid = hinfo->nid;
1916 	struct hdmi_spec *spec = codec->spec;
1917 	int pin_idx;
1918 	struct hdmi_spec_per_pin *per_pin;
1919 	struct snd_pcm_runtime *runtime = substream->runtime;
1920 	bool non_pcm;
1921 	int pinctl, stripe;
1922 	int err = 0;
1923 
1924 	mutex_lock(&spec->pcm_lock);
1925 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1926 	if (spec->dyn_pcm_assign && pin_idx < 0) {
1927 		/* when dyn_pcm_assign and pcm is not bound to a pin
1928 		 * skip pin setup and return 0 to make audio playback
1929 		 * be ongoing
1930 		 */
1931 		pin_cvt_fixup(codec, NULL, cvt_nid);
1932 		snd_hda_codec_setup_stream(codec, cvt_nid,
1933 					stream_tag, 0, format);
1934 		goto unlock;
1935 	}
1936 
1937 	if (snd_BUG_ON(pin_idx < 0)) {
1938 		err = -EINVAL;
1939 		goto unlock;
1940 	}
1941 	per_pin = get_pin(spec, pin_idx);
1942 
1943 	/* Verify pin:cvt selections to avoid silent audio after S3.
1944 	 * After S3, the audio driver restores pin:cvt selections
1945 	 * but this can happen before gfx is ready and such selection
1946 	 * is overlooked by HW. Thus multiple pins can share a same
1947 	 * default convertor and mute control will affect each other,
1948 	 * which can cause a resumed audio playback become silent
1949 	 * after S3.
1950 	 */
1951 	pin_cvt_fixup(codec, per_pin, 0);
1952 
1953 	/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
1954 	/* Todo: add DP1.2 MST audio support later */
1955 	if (codec_has_acomp(codec))
1956 		snd_hdac_sync_audio_rate(&codec->core, per_pin->pin_nid,
1957 					 per_pin->dev_id, runtime->rate);
1958 
1959 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1960 	mutex_lock(&per_pin->lock);
1961 	per_pin->channels = substream->runtime->channels;
1962 	per_pin->setup = true;
1963 
1964 	if (get_wcaps(codec, cvt_nid) & AC_WCAP_STRIPE) {
1965 		stripe = snd_hdac_get_stream_stripe_ctl(&codec->bus->core,
1966 							substream);
1967 		snd_hda_codec_write(codec, cvt_nid, 0,
1968 				    AC_VERB_SET_STRIPE_CONTROL,
1969 				    stripe);
1970 	}
1971 
1972 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1973 	mutex_unlock(&per_pin->lock);
1974 	if (spec->dyn_pin_out) {
1975 		snd_hda_set_dev_select(codec, per_pin->pin_nid,
1976 				       per_pin->dev_id);
1977 		pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1978 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1979 		snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1980 				    AC_VERB_SET_PIN_WIDGET_CONTROL,
1981 				    pinctl | PIN_OUT);
1982 	}
1983 
1984 	/* snd_hda_set_dev_select() has been called before */
1985 	err = spec->ops.setup_stream(codec, cvt_nid, per_pin->pin_nid,
1986 				     per_pin->dev_id, stream_tag, format);
1987  unlock:
1988 	mutex_unlock(&spec->pcm_lock);
1989 	return err;
1990 }
1991 
1992 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1993 					     struct hda_codec *codec,
1994 					     struct snd_pcm_substream *substream)
1995 {
1996 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1997 	return 0;
1998 }
1999 
2000 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
2001 			  struct hda_codec *codec,
2002 			  struct snd_pcm_substream *substream)
2003 {
2004 	struct hdmi_spec *spec = codec->spec;
2005 	int cvt_idx, pin_idx, pcm_idx;
2006 	struct hdmi_spec_per_cvt *per_cvt;
2007 	struct hdmi_spec_per_pin *per_pin;
2008 	int pinctl;
2009 	int err = 0;
2010 
2011 	if (hinfo->nid) {
2012 		pcm_idx = hinfo_to_pcm_index(codec, hinfo);
2013 		if (snd_BUG_ON(pcm_idx < 0))
2014 			return -EINVAL;
2015 		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
2016 		if (snd_BUG_ON(cvt_idx < 0))
2017 			return -EINVAL;
2018 		per_cvt = get_cvt(spec, cvt_idx);
2019 
2020 		snd_BUG_ON(!per_cvt->assigned);
2021 		per_cvt->assigned = 0;
2022 		hinfo->nid = 0;
2023 
2024 		azx_stream(get_azx_dev(substream))->stripe = 0;
2025 
2026 		mutex_lock(&spec->pcm_lock);
2027 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
2028 		clear_bit(pcm_idx, &spec->pcm_in_use);
2029 		pin_idx = hinfo_to_pin_index(codec, hinfo);
2030 		if (spec->dyn_pcm_assign && pin_idx < 0)
2031 			goto unlock;
2032 
2033 		if (snd_BUG_ON(pin_idx < 0)) {
2034 			err = -EINVAL;
2035 			goto unlock;
2036 		}
2037 		per_pin = get_pin(spec, pin_idx);
2038 
2039 		if (spec->dyn_pin_out) {
2040 			snd_hda_set_dev_select(codec, per_pin->pin_nid,
2041 					       per_pin->dev_id);
2042 			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
2043 					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
2044 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
2045 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
2046 					    pinctl & ~PIN_OUT);
2047 		}
2048 
2049 		mutex_lock(&per_pin->lock);
2050 		per_pin->chmap_set = false;
2051 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
2052 
2053 		per_pin->setup = false;
2054 		per_pin->channels = 0;
2055 		mutex_unlock(&per_pin->lock);
2056 	unlock:
2057 		mutex_unlock(&spec->pcm_lock);
2058 	}
2059 
2060 	return err;
2061 }
2062 
2063 static const struct hda_pcm_ops generic_ops = {
2064 	.open = hdmi_pcm_open,
2065 	.close = hdmi_pcm_close,
2066 	.prepare = generic_hdmi_playback_pcm_prepare,
2067 	.cleanup = generic_hdmi_playback_pcm_cleanup,
2068 };
2069 
2070 static int hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
2071 {
2072 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2073 	struct hdmi_spec *spec = codec->spec;
2074 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2075 
2076 	if (!per_pin)
2077 		return 0;
2078 
2079 	return per_pin->sink_eld.info.spk_alloc;
2080 }
2081 
2082 static void hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
2083 					unsigned char *chmap)
2084 {
2085 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2086 	struct hdmi_spec *spec = codec->spec;
2087 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2088 
2089 	/* chmap is already set to 0 in caller */
2090 	if (!per_pin)
2091 		return;
2092 
2093 	memcpy(chmap, per_pin->chmap, ARRAY_SIZE(per_pin->chmap));
2094 }
2095 
2096 static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
2097 				unsigned char *chmap, int prepared)
2098 {
2099 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2100 	struct hdmi_spec *spec = codec->spec;
2101 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2102 
2103 	if (!per_pin)
2104 		return;
2105 	mutex_lock(&per_pin->lock);
2106 	per_pin->chmap_set = true;
2107 	memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));
2108 	if (prepared)
2109 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
2110 	mutex_unlock(&per_pin->lock);
2111 }
2112 
2113 static bool is_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
2114 {
2115 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
2116 	struct hdmi_spec *spec = codec->spec;
2117 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
2118 
2119 	return per_pin ? true:false;
2120 }
2121 
2122 static int generic_hdmi_build_pcms(struct hda_codec *codec)
2123 {
2124 	struct hdmi_spec *spec = codec->spec;
2125 	int idx, pcm_num;
2126 
2127 	/*
2128 	 * for non-mst mode, pcm number is the same as before
2129 	 * for DP MST mode without extra PCM, pcm number is same
2130 	 * for DP MST mode with extra PCMs, pcm number is
2131 	 *  (nid number + dev_num - 1)
2132 	 * dev_num is the device entry number in a pin
2133 	 */
2134 
2135 	if (codec->mst_no_extra_pcms)
2136 		pcm_num = spec->num_nids;
2137 	else
2138 		pcm_num = spec->num_nids + spec->dev_num - 1;
2139 
2140 	codec_dbg(codec, "hdmi: pcm_num set to %d\n", pcm_num);
2141 
2142 	for (idx = 0; idx < pcm_num; idx++) {
2143 		struct hda_pcm *info;
2144 		struct hda_pcm_stream *pstr;
2145 
2146 		info = snd_hda_codec_pcm_new(codec, "HDMI %d", idx);
2147 		if (!info)
2148 			return -ENOMEM;
2149 
2150 		spec->pcm_rec[idx].pcm = info;
2151 		spec->pcm_used++;
2152 		info->pcm_type = HDA_PCM_TYPE_HDMI;
2153 		info->own_chmap = true;
2154 
2155 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2156 		pstr->substreams = 1;
2157 		pstr->ops = generic_ops;
2158 		/* pcm number is less than 16 */
2159 		if (spec->pcm_used >= 16)
2160 			break;
2161 		/* other pstr fields are set in open */
2162 	}
2163 
2164 	return 0;
2165 }
2166 
2167 static void free_hdmi_jack_priv(struct snd_jack *jack)
2168 {
2169 	struct hdmi_pcm *pcm = jack->private_data;
2170 
2171 	pcm->jack = NULL;
2172 }
2173 
2174 static int add_hdmi_jack_kctl(struct hda_codec *codec,
2175 			       struct hdmi_spec *spec,
2176 			       int pcm_idx,
2177 			       const char *name)
2178 {
2179 	struct snd_jack *jack;
2180 	int err;
2181 
2182 	err = snd_jack_new(codec->card, name, SND_JACK_AVOUT, &jack,
2183 			   true, false);
2184 	if (err < 0)
2185 		return err;
2186 
2187 	spec->pcm_rec[pcm_idx].jack = jack;
2188 	jack->private_data = &spec->pcm_rec[pcm_idx];
2189 	jack->private_free = free_hdmi_jack_priv;
2190 	return 0;
2191 }
2192 
2193 static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
2194 {
2195 	char hdmi_str[32] = "HDMI/DP";
2196 	struct hdmi_spec *spec = codec->spec;
2197 	struct hdmi_spec_per_pin *per_pin;
2198 	struct hda_jack_tbl *jack;
2199 	int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
2200 	bool phantom_jack;
2201 	int ret;
2202 
2203 	if (pcmdev > 0)
2204 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
2205 
2206 	if (spec->dyn_pcm_assign)
2207 		return add_hdmi_jack_kctl(codec, spec, pcm_idx, hdmi_str);
2208 
2209 	/* for !dyn_pcm_assign, we still use hda_jack for compatibility */
2210 	/* if !dyn_pcm_assign, it must be non-MST mode.
2211 	 * This means pcms and pins are statically mapped.
2212 	 * And pcm_idx is pin_idx.
2213 	 */
2214 	per_pin = get_pin(spec, pcm_idx);
2215 	phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
2216 	if (phantom_jack)
2217 		strncat(hdmi_str, " Phantom",
2218 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
2219 	ret = snd_hda_jack_add_kctl_mst(codec, per_pin->pin_nid,
2220 					per_pin->dev_id, hdmi_str, phantom_jack,
2221 					0, NULL);
2222 	if (ret < 0)
2223 		return ret;
2224 	jack = snd_hda_jack_tbl_get_mst(codec, per_pin->pin_nid,
2225 					per_pin->dev_id);
2226 	if (jack == NULL)
2227 		return 0;
2228 	/* assign jack->jack to pcm_rec[].jack to
2229 	 * align with dyn_pcm_assign mode
2230 	 */
2231 	spec->pcm_rec[pcm_idx].jack = jack->jack;
2232 	return 0;
2233 }
2234 
2235 static int generic_hdmi_build_controls(struct hda_codec *codec)
2236 {
2237 	struct hdmi_spec *spec = codec->spec;
2238 	int dev, err;
2239 	int pin_idx, pcm_idx;
2240 
2241 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2242 		if (!get_pcm_rec(spec, pcm_idx)->pcm) {
2243 			/* no PCM: mark this for skipping permanently */
2244 			set_bit(pcm_idx, &spec->pcm_bitmap);
2245 			continue;
2246 		}
2247 
2248 		err = generic_hdmi_build_jack(codec, pcm_idx);
2249 		if (err < 0)
2250 			return err;
2251 
2252 		/* create the spdif for each pcm
2253 		 * pin will be bound when monitor is connected
2254 		 */
2255 		if (spec->dyn_pcm_assign)
2256 			err = snd_hda_create_dig_out_ctls(codec,
2257 					  0, spec->cvt_nids[0],
2258 					  HDA_PCM_TYPE_HDMI);
2259 		else {
2260 			struct hdmi_spec_per_pin *per_pin =
2261 				get_pin(spec, pcm_idx);
2262 			err = snd_hda_create_dig_out_ctls(codec,
2263 						  per_pin->pin_nid,
2264 						  per_pin->mux_nids[0],
2265 						  HDA_PCM_TYPE_HDMI);
2266 		}
2267 		if (err < 0)
2268 			return err;
2269 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
2270 
2271 		dev = get_pcm_rec(spec, pcm_idx)->device;
2272 		if (dev != SNDRV_PCM_INVALID_DEVICE) {
2273 			/* add control for ELD Bytes */
2274 			err = hdmi_create_eld_ctl(codec, pcm_idx, dev);
2275 			if (err < 0)
2276 				return err;
2277 		}
2278 	}
2279 
2280 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2281 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2282 
2283 		hdmi_present_sense(per_pin, 0);
2284 	}
2285 
2286 	/* add channel maps */
2287 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2288 		struct hda_pcm *pcm;
2289 
2290 		pcm = get_pcm_rec(spec, pcm_idx);
2291 		if (!pcm || !pcm->pcm)
2292 			break;
2293 		err = snd_hdac_add_chmap_ctls(pcm->pcm, pcm_idx, &spec->chmap);
2294 		if (err < 0)
2295 			return err;
2296 	}
2297 
2298 	return 0;
2299 }
2300 
2301 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2302 {
2303 	struct hdmi_spec *spec = codec->spec;
2304 	int pin_idx;
2305 
2306 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2307 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2308 
2309 		per_pin->codec = codec;
2310 		mutex_init(&per_pin->lock);
2311 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2312 		eld_proc_new(per_pin, pin_idx);
2313 	}
2314 	return 0;
2315 }
2316 
2317 static int generic_hdmi_init(struct hda_codec *codec)
2318 {
2319 	struct hdmi_spec *spec = codec->spec;
2320 	int pin_idx;
2321 
2322 	mutex_lock(&spec->bind_lock);
2323 	spec->use_jack_detect = !codec->jackpoll_interval;
2324 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2325 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2326 		hda_nid_t pin_nid = per_pin->pin_nid;
2327 		int dev_id = per_pin->dev_id;
2328 
2329 		snd_hda_set_dev_select(codec, pin_nid, dev_id);
2330 		hdmi_init_pin(codec, pin_nid);
2331 		if (codec_has_acomp(codec))
2332 			continue;
2333 		if (spec->use_jack_detect)
2334 			snd_hda_jack_detect_enable(codec, pin_nid, dev_id);
2335 		else
2336 			snd_hda_jack_detect_enable_callback_mst(codec, pin_nid,
2337 								dev_id,
2338 								jack_callback);
2339 	}
2340 	mutex_unlock(&spec->bind_lock);
2341 	return 0;
2342 }
2343 
2344 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2345 {
2346 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2347 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2348 }
2349 
2350 static void hdmi_array_free(struct hdmi_spec *spec)
2351 {
2352 	snd_array_free(&spec->pins);
2353 	snd_array_free(&spec->cvts);
2354 }
2355 
2356 static void generic_spec_free(struct hda_codec *codec)
2357 {
2358 	struct hdmi_spec *spec = codec->spec;
2359 
2360 	if (spec) {
2361 		hdmi_array_free(spec);
2362 		kfree(spec);
2363 		codec->spec = NULL;
2364 	}
2365 	codec->dp_mst = false;
2366 }
2367 
2368 static void generic_hdmi_free(struct hda_codec *codec)
2369 {
2370 	struct hdmi_spec *spec = codec->spec;
2371 	int pin_idx, pcm_idx;
2372 
2373 	if (spec->acomp_registered) {
2374 		snd_hdac_acomp_exit(&codec->bus->core);
2375 	} else if (codec_has_acomp(codec)) {
2376 		snd_hdac_acomp_register_notifier(&codec->bus->core, NULL);
2377 	}
2378 	codec->relaxed_resume = 0;
2379 
2380 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2381 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2382 		cancel_delayed_work_sync(&per_pin->work);
2383 		eld_proc_free(per_pin);
2384 	}
2385 
2386 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2387 		if (spec->pcm_rec[pcm_idx].jack == NULL)
2388 			continue;
2389 		if (spec->dyn_pcm_assign)
2390 			snd_device_free(codec->card,
2391 					spec->pcm_rec[pcm_idx].jack);
2392 		else
2393 			spec->pcm_rec[pcm_idx].jack = NULL;
2394 	}
2395 
2396 	generic_spec_free(codec);
2397 }
2398 
2399 #ifdef CONFIG_PM
2400 static int generic_hdmi_resume(struct hda_codec *codec)
2401 {
2402 	struct hdmi_spec *spec = codec->spec;
2403 	int pin_idx;
2404 
2405 	codec->patch_ops.init(codec);
2406 	regcache_sync(codec->core.regmap);
2407 
2408 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2409 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2410 		hdmi_present_sense(per_pin, 1);
2411 	}
2412 	return 0;
2413 }
2414 #endif
2415 
2416 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2417 	.init			= generic_hdmi_init,
2418 	.free			= generic_hdmi_free,
2419 	.build_pcms		= generic_hdmi_build_pcms,
2420 	.build_controls		= generic_hdmi_build_controls,
2421 	.unsol_event		= hdmi_unsol_event,
2422 #ifdef CONFIG_PM
2423 	.resume			= generic_hdmi_resume,
2424 #endif
2425 };
2426 
2427 static const struct hdmi_ops generic_standard_hdmi_ops = {
2428 	.pin_get_eld				= hdmi_pin_get_eld,
2429 	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
2430 	.pin_hbr_setup				= hdmi_pin_hbr_setup,
2431 	.setup_stream				= hdmi_setup_stream,
2432 };
2433 
2434 /* allocate codec->spec and assign/initialize generic parser ops */
2435 static int alloc_generic_hdmi(struct hda_codec *codec)
2436 {
2437 	struct hdmi_spec *spec;
2438 
2439 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2440 	if (!spec)
2441 		return -ENOMEM;
2442 
2443 	spec->codec = codec;
2444 	spec->ops = generic_standard_hdmi_ops;
2445 	spec->dev_num = 1;	/* initialize to 1 */
2446 	mutex_init(&spec->pcm_lock);
2447 	mutex_init(&spec->bind_lock);
2448 	snd_hdac_register_chmap_ops(&codec->core, &spec->chmap);
2449 
2450 	spec->chmap.ops.get_chmap = hdmi_get_chmap;
2451 	spec->chmap.ops.set_chmap = hdmi_set_chmap;
2452 	spec->chmap.ops.is_pcm_attached = is_hdmi_pcm_attached;
2453 	spec->chmap.ops.get_spk_alloc = hdmi_get_spk_alloc,
2454 
2455 	codec->spec = spec;
2456 	hdmi_array_init(spec, 4);
2457 
2458 	codec->patch_ops = generic_hdmi_patch_ops;
2459 
2460 	return 0;
2461 }
2462 
2463 /* generic HDMI parser */
2464 static int patch_generic_hdmi(struct hda_codec *codec)
2465 {
2466 	int err;
2467 
2468 	err = alloc_generic_hdmi(codec);
2469 	if (err < 0)
2470 		return err;
2471 
2472 	err = hdmi_parse_codec(codec);
2473 	if (err < 0) {
2474 		generic_spec_free(codec);
2475 		return err;
2476 	}
2477 
2478 	generic_hdmi_init_per_pins(codec);
2479 	return 0;
2480 }
2481 
2482 /*
2483  * generic audio component binding
2484  */
2485 
2486 /* turn on / off the unsol event jack detection dynamically */
2487 static void reprogram_jack_detect(struct hda_codec *codec, hda_nid_t nid,
2488 				  int dev_id, bool use_acomp)
2489 {
2490 	struct hda_jack_tbl *tbl;
2491 
2492 	tbl = snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
2493 	if (tbl) {
2494 		/* clear unsol even if component notifier is used, or re-enable
2495 		 * if notifier is cleared
2496 		 */
2497 		unsigned int val = use_acomp ? 0 : (AC_USRSP_EN | tbl->tag);
2498 		snd_hda_codec_write_cache(codec, nid, 0,
2499 					  AC_VERB_SET_UNSOLICITED_ENABLE, val);
2500 	} else {
2501 		/* if no jack entry was defined beforehand, create a new one
2502 		 * at need (i.e. only when notifier is cleared)
2503 		 */
2504 		if (!use_acomp)
2505 			snd_hda_jack_detect_enable(codec, nid, dev_id);
2506 	}
2507 }
2508 
2509 /* set up / clear component notifier dynamically */
2510 static void generic_acomp_notifier_set(struct drm_audio_component *acomp,
2511 				       bool use_acomp)
2512 {
2513 	struct hdmi_spec *spec;
2514 	int i;
2515 
2516 	spec = container_of(acomp->audio_ops, struct hdmi_spec, drm_audio_ops);
2517 	mutex_lock(&spec->bind_lock);
2518 	spec->use_acomp_notifier = use_acomp;
2519 	spec->codec->relaxed_resume = use_acomp;
2520 	/* reprogram each jack detection logic depending on the notifier */
2521 	if (spec->use_jack_detect) {
2522 		for (i = 0; i < spec->num_pins; i++)
2523 			reprogram_jack_detect(spec->codec,
2524 					      get_pin(spec, i)->pin_nid,
2525 					      get_pin(spec, i)->dev_id,
2526 					      use_acomp);
2527 	}
2528 	mutex_unlock(&spec->bind_lock);
2529 }
2530 
2531 /* enable / disable the notifier via master bind / unbind */
2532 static int generic_acomp_master_bind(struct device *dev,
2533 				     struct drm_audio_component *acomp)
2534 {
2535 	generic_acomp_notifier_set(acomp, true);
2536 	return 0;
2537 }
2538 
2539 static void generic_acomp_master_unbind(struct device *dev,
2540 					struct drm_audio_component *acomp)
2541 {
2542 	generic_acomp_notifier_set(acomp, false);
2543 }
2544 
2545 /* check whether both HD-audio and DRM PCI devices belong to the same bus */
2546 static int match_bound_vga(struct device *dev, int subtype, void *data)
2547 {
2548 	struct hdac_bus *bus = data;
2549 	struct pci_dev *pci, *master;
2550 
2551 	if (!dev_is_pci(dev) || !dev_is_pci(bus->dev))
2552 		return 0;
2553 	master = to_pci_dev(bus->dev);
2554 	pci = to_pci_dev(dev);
2555 	return master->bus == pci->bus;
2556 }
2557 
2558 /* audio component notifier for AMD/Nvidia HDMI codecs */
2559 static void generic_acomp_pin_eld_notify(void *audio_ptr, int port, int dev_id)
2560 {
2561 	struct hda_codec *codec = audio_ptr;
2562 	struct hdmi_spec *spec = codec->spec;
2563 	hda_nid_t pin_nid = spec->port2pin(codec, port);
2564 
2565 	if (!pin_nid)
2566 		return;
2567 	if (get_wcaps_type(get_wcaps(codec, pin_nid)) != AC_WID_PIN)
2568 		return;
2569 	/* skip notification during system suspend (but not in runtime PM);
2570 	 * the state will be updated at resume
2571 	 */
2572 	if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2573 		return;
2574 	/* ditto during suspend/resume process itself */
2575 	if (snd_hdac_is_in_pm(&codec->core))
2576 		return;
2577 
2578 	check_presence_and_report(codec, pin_nid, dev_id);
2579 }
2580 
2581 /* set up the private drm_audio_ops from the template */
2582 static void setup_drm_audio_ops(struct hda_codec *codec,
2583 				const struct drm_audio_component_audio_ops *ops)
2584 {
2585 	struct hdmi_spec *spec = codec->spec;
2586 
2587 	spec->drm_audio_ops.audio_ptr = codec;
2588 	/* intel_audio_codec_enable() or intel_audio_codec_disable()
2589 	 * will call pin_eld_notify with using audio_ptr pointer
2590 	 * We need make sure audio_ptr is really setup
2591 	 */
2592 	wmb();
2593 	spec->drm_audio_ops.pin2port = ops->pin2port;
2594 	spec->drm_audio_ops.pin_eld_notify = ops->pin_eld_notify;
2595 	spec->drm_audio_ops.master_bind = ops->master_bind;
2596 	spec->drm_audio_ops.master_unbind = ops->master_unbind;
2597 }
2598 
2599 /* initialize the generic HDMI audio component */
2600 static void generic_acomp_init(struct hda_codec *codec,
2601 			       const struct drm_audio_component_audio_ops *ops,
2602 			       int (*port2pin)(struct hda_codec *, int))
2603 {
2604 	struct hdmi_spec *spec = codec->spec;
2605 
2606 	spec->port2pin = port2pin;
2607 	setup_drm_audio_ops(codec, ops);
2608 	if (!snd_hdac_acomp_init(&codec->bus->core, &spec->drm_audio_ops,
2609 				 match_bound_vga, 0)) {
2610 		spec->acomp_registered = true;
2611 		codec->bus->keep_power = 0;
2612 	}
2613 }
2614 
2615 /*
2616  * Intel codec parsers and helpers
2617  */
2618 
2619 #define INTEL_GET_VENDOR_VERB	0xf81
2620 #define INTEL_SET_VENDOR_VERB	0x781
2621 #define INTEL_EN_DP12		0x02	/* enable DP 1.2 features */
2622 #define INTEL_EN_ALL_PIN_CVTS	0x01	/* enable 2nd & 3rd pins and convertors */
2623 
2624 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2625 					  bool update_tree)
2626 {
2627 	unsigned int vendor_param;
2628 	struct hdmi_spec *spec = codec->spec;
2629 
2630 	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2631 				INTEL_GET_VENDOR_VERB, 0);
2632 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2633 		return;
2634 
2635 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2636 	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2637 				INTEL_SET_VENDOR_VERB, vendor_param);
2638 	if (vendor_param == -1)
2639 		return;
2640 
2641 	if (update_tree)
2642 		snd_hda_codec_update_widgets(codec);
2643 }
2644 
2645 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2646 {
2647 	unsigned int vendor_param;
2648 	struct hdmi_spec *spec = codec->spec;
2649 
2650 	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
2651 				INTEL_GET_VENDOR_VERB, 0);
2652 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2653 		return;
2654 
2655 	/* enable DP1.2 mode */
2656 	vendor_param |= INTEL_EN_DP12;
2657 	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2658 	snd_hda_codec_write_cache(codec, spec->vendor_nid, 0,
2659 				INTEL_SET_VENDOR_VERB, vendor_param);
2660 }
2661 
2662 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2663  * Otherwise you may get severe h/w communication errors.
2664  */
2665 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2666 				unsigned int power_state)
2667 {
2668 	if (power_state == AC_PWRST_D0) {
2669 		intel_haswell_enable_all_pins(codec, false);
2670 		intel_haswell_fixup_enable_dp12(codec);
2671 	}
2672 
2673 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2674 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
2675 }
2676 
2677 /* There is a fixed mapping between audio pin node and display port.
2678  * on SNB, IVY, HSW, BSW, SKL, BXT, KBL:
2679  * Pin Widget 5 - PORT B (port = 1 in i915 driver)
2680  * Pin Widget 6 - PORT C (port = 2 in i915 driver)
2681  * Pin Widget 7 - PORT D (port = 3 in i915 driver)
2682  *
2683  * on VLV, ILK:
2684  * Pin Widget 4 - PORT B (port = 1 in i915 driver)
2685  * Pin Widget 5 - PORT C (port = 2 in i915 driver)
2686  * Pin Widget 6 - PORT D (port = 3 in i915 driver)
2687  */
2688 static int intel_base_nid(struct hda_codec *codec)
2689 {
2690 	switch (codec->core.vendor_id) {
2691 	case 0x80860054: /* ILK */
2692 	case 0x80862804: /* ILK */
2693 	case 0x80862882: /* VLV */
2694 		return 4;
2695 	default:
2696 		return 5;
2697 	}
2698 }
2699 
2700 static int intel_pin2port(void *audio_ptr, int pin_nid)
2701 {
2702 	struct hda_codec *codec = audio_ptr;
2703 	struct hdmi_spec *spec = codec->spec;
2704 	int base_nid, i;
2705 
2706 	if (!spec->port_num) {
2707 		base_nid = intel_base_nid(codec);
2708 		if (WARN_ON(pin_nid < base_nid || pin_nid >= base_nid + 3))
2709 			return -1;
2710 		return pin_nid - base_nid + 1;
2711 	}
2712 
2713 	/*
2714 	 * looking for the pin number in the mapping table and return
2715 	 * the index which indicate the port number
2716 	 */
2717 	for (i = 0; i < spec->port_num; i++) {
2718 		if (pin_nid == spec->port_map[i])
2719 			return i;
2720 	}
2721 
2722 	codec_info(codec, "Can't find the HDMI/DP port for pin %d\n", pin_nid);
2723 	return -1;
2724 }
2725 
2726 static int intel_port2pin(struct hda_codec *codec, int port)
2727 {
2728 	struct hdmi_spec *spec = codec->spec;
2729 
2730 	if (!spec->port_num) {
2731 		/* we assume only from port-B to port-D */
2732 		if (port < 1 || port > 3)
2733 			return 0;
2734 		return port + intel_base_nid(codec) - 1;
2735 	}
2736 
2737 	if (port < 0 || port >= spec->port_num)
2738 		return 0;
2739 	return spec->port_map[port];
2740 }
2741 
2742 static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
2743 {
2744 	struct hda_codec *codec = audio_ptr;
2745 	int pin_nid;
2746 	int dev_id = pipe;
2747 
2748 	pin_nid = intel_port2pin(codec, port);
2749 	if (!pin_nid)
2750 		return;
2751 	/* skip notification during system suspend (but not in runtime PM);
2752 	 * the state will be updated at resume
2753 	 */
2754 	if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2755 		return;
2756 	/* ditto during suspend/resume process itself */
2757 	if (snd_hdac_is_in_pm(&codec->core))
2758 		return;
2759 
2760 	snd_hdac_i915_set_bclk(&codec->bus->core);
2761 	check_presence_and_report(codec, pin_nid, dev_id);
2762 }
2763 
2764 static const struct drm_audio_component_audio_ops intel_audio_ops = {
2765 	.pin2port = intel_pin2port,
2766 	.pin_eld_notify = intel_pin_eld_notify,
2767 };
2768 
2769 /* register i915 component pin_eld_notify callback */
2770 static void register_i915_notifier(struct hda_codec *codec)
2771 {
2772 	struct hdmi_spec *spec = codec->spec;
2773 
2774 	spec->use_acomp_notifier = true;
2775 	spec->port2pin = intel_port2pin;
2776 	setup_drm_audio_ops(codec, &intel_audio_ops);
2777 	snd_hdac_acomp_register_notifier(&codec->bus->core,
2778 					&spec->drm_audio_ops);
2779 	/* no need for forcible resume for jack check thanks to notifier */
2780 	codec->relaxed_resume = 1;
2781 }
2782 
2783 /* setup_stream ops override for HSW+ */
2784 static int i915_hsw_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
2785 				 hda_nid_t pin_nid, int dev_id, u32 stream_tag,
2786 				 int format)
2787 {
2788 	haswell_verify_D0(codec, cvt_nid, pin_nid);
2789 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, dev_id,
2790 				 stream_tag, format);
2791 }
2792 
2793 /* pin_cvt_fixup ops override for HSW+ and VLV+ */
2794 static void i915_pin_cvt_fixup(struct hda_codec *codec,
2795 			       struct hdmi_spec_per_pin *per_pin,
2796 			       hda_nid_t cvt_nid)
2797 {
2798 	if (per_pin) {
2799 		snd_hda_set_dev_select(codec, per_pin->pin_nid,
2800 			       per_pin->dev_id);
2801 		intel_verify_pin_cvt_connect(codec, per_pin);
2802 		intel_not_share_assigned_cvt(codec, per_pin->pin_nid,
2803 				     per_pin->dev_id, per_pin->mux_idx);
2804 	} else {
2805 		intel_not_share_assigned_cvt_nid(codec, 0, 0, cvt_nid);
2806 	}
2807 }
2808 
2809 /* precondition and allocation for Intel codecs */
2810 static int alloc_intel_hdmi(struct hda_codec *codec)
2811 {
2812 	int err;
2813 
2814 	/* requires i915 binding */
2815 	if (!codec->bus->core.audio_component) {
2816 		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2817 		/* set probe_id here to prevent generic fallback binding */
2818 		codec->probe_id = HDA_CODEC_ID_SKIP_PROBE;
2819 		return -ENODEV;
2820 	}
2821 
2822 	err = alloc_generic_hdmi(codec);
2823 	if (err < 0)
2824 		return err;
2825 	/* no need to handle unsol events */
2826 	codec->patch_ops.unsol_event = NULL;
2827 	return 0;
2828 }
2829 
2830 /* parse and post-process for Intel codecs */
2831 static int parse_intel_hdmi(struct hda_codec *codec)
2832 {
2833 	int err;
2834 
2835 	err = hdmi_parse_codec(codec);
2836 	if (err < 0) {
2837 		generic_spec_free(codec);
2838 		return err;
2839 	}
2840 
2841 	generic_hdmi_init_per_pins(codec);
2842 	register_i915_notifier(codec);
2843 	return 0;
2844 }
2845 
2846 /* Intel Haswell and onwards; audio component with eld notifier */
2847 static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid,
2848 				 const int *port_map, int port_num)
2849 {
2850 	struct hdmi_spec *spec;
2851 	int err;
2852 
2853 	err = alloc_intel_hdmi(codec);
2854 	if (err < 0)
2855 		return err;
2856 	spec = codec->spec;
2857 	codec->dp_mst = true;
2858 	spec->dyn_pcm_assign = true;
2859 	spec->vendor_nid = vendor_nid;
2860 	spec->port_map = port_map;
2861 	spec->port_num = port_num;
2862 	spec->intel_hsw_fixup = true;
2863 
2864 	intel_haswell_enable_all_pins(codec, true);
2865 	intel_haswell_fixup_enable_dp12(codec);
2866 
2867 	codec->display_power_control = 1;
2868 
2869 	codec->patch_ops.set_power_state = haswell_set_power_state;
2870 	codec->depop_delay = 0;
2871 	codec->auto_runtime_pm = 1;
2872 
2873 	spec->ops.setup_stream = i915_hsw_setup_stream;
2874 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2875 
2876 	return parse_intel_hdmi(codec);
2877 }
2878 
2879 static int patch_i915_hsw_hdmi(struct hda_codec *codec)
2880 {
2881 	return intel_hsw_common_init(codec, 0x08, NULL, 0);
2882 }
2883 
2884 static int patch_i915_glk_hdmi(struct hda_codec *codec)
2885 {
2886 	return intel_hsw_common_init(codec, 0x0b, NULL, 0);
2887 }
2888 
2889 static int patch_i915_icl_hdmi(struct hda_codec *codec)
2890 {
2891 	/*
2892 	 * pin to port mapping table where the value indicate the pin number and
2893 	 * the index indicate the port number.
2894 	 */
2895 	static const int map[] = {0x0, 0x4, 0x6, 0x8, 0xa, 0xb};
2896 
2897 	return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
2898 }
2899 
2900 static int patch_i915_tgl_hdmi(struct hda_codec *codec)
2901 {
2902 	/*
2903 	 * pin to port mapping table where the value indicate the pin number and
2904 	 * the index indicate the port number.
2905 	 */
2906 	static const int map[] = {0x4, 0x6, 0x8, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
2907 
2908 	return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
2909 }
2910 
2911 /* Intel Baytrail and Braswell; with eld notifier */
2912 static int patch_i915_byt_hdmi(struct hda_codec *codec)
2913 {
2914 	struct hdmi_spec *spec;
2915 	int err;
2916 
2917 	err = alloc_intel_hdmi(codec);
2918 	if (err < 0)
2919 		return err;
2920 	spec = codec->spec;
2921 
2922 	/* For Valleyview/Cherryview, only the display codec is in the display
2923 	 * power well and can use link_power ops to request/release the power.
2924 	 */
2925 	codec->display_power_control = 1;
2926 
2927 	codec->depop_delay = 0;
2928 	codec->auto_runtime_pm = 1;
2929 
2930 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2931 
2932 	return parse_intel_hdmi(codec);
2933 }
2934 
2935 /* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */
2936 static int patch_i915_cpt_hdmi(struct hda_codec *codec)
2937 {
2938 	int err;
2939 
2940 	err = alloc_intel_hdmi(codec);
2941 	if (err < 0)
2942 		return err;
2943 	return parse_intel_hdmi(codec);
2944 }
2945 
2946 /*
2947  * Shared non-generic implementations
2948  */
2949 
2950 static int simple_playback_build_pcms(struct hda_codec *codec)
2951 {
2952 	struct hdmi_spec *spec = codec->spec;
2953 	struct hda_pcm *info;
2954 	unsigned int chans;
2955 	struct hda_pcm_stream *pstr;
2956 	struct hdmi_spec_per_cvt *per_cvt;
2957 
2958 	per_cvt = get_cvt(spec, 0);
2959 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2960 	chans = get_wcaps_channels(chans);
2961 
2962 	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2963 	if (!info)
2964 		return -ENOMEM;
2965 	spec->pcm_rec[0].pcm = info;
2966 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2967 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2968 	*pstr = spec->pcm_playback;
2969 	pstr->nid = per_cvt->cvt_nid;
2970 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2971 		pstr->channels_max = chans;
2972 
2973 	return 0;
2974 }
2975 
2976 /* unsolicited event for jack sensing */
2977 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2978 				    unsigned int res)
2979 {
2980 	snd_hda_jack_set_dirty_all(codec);
2981 	snd_hda_jack_report_sync(codec);
2982 }
2983 
2984 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2985  * as long as spec->pins[] is set correctly
2986  */
2987 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2988 
2989 static int simple_playback_build_controls(struct hda_codec *codec)
2990 {
2991 	struct hdmi_spec *spec = codec->spec;
2992 	struct hdmi_spec_per_cvt *per_cvt;
2993 	int err;
2994 
2995 	per_cvt = get_cvt(spec, 0);
2996 	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2997 					  per_cvt->cvt_nid,
2998 					  HDA_PCM_TYPE_HDMI);
2999 	if (err < 0)
3000 		return err;
3001 	return simple_hdmi_build_jack(codec, 0);
3002 }
3003 
3004 static int simple_playback_init(struct hda_codec *codec)
3005 {
3006 	struct hdmi_spec *spec = codec->spec;
3007 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
3008 	hda_nid_t pin = per_pin->pin_nid;
3009 
3010 	snd_hda_codec_write(codec, pin, 0,
3011 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
3012 	/* some codecs require to unmute the pin */
3013 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
3014 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
3015 				    AMP_OUT_UNMUTE);
3016 	snd_hda_jack_detect_enable(codec, pin, per_pin->dev_id);
3017 	return 0;
3018 }
3019 
3020 static void simple_playback_free(struct hda_codec *codec)
3021 {
3022 	struct hdmi_spec *spec = codec->spec;
3023 
3024 	hdmi_array_free(spec);
3025 	kfree(spec);
3026 }
3027 
3028 /*
3029  * Nvidia specific implementations
3030  */
3031 
3032 #define Nv_VERB_SET_Channel_Allocation          0xF79
3033 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
3034 #define Nv_VERB_SET_Audio_Protection_On         0xF98
3035 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
3036 
3037 #define nvhdmi_master_con_nid_7x	0x04
3038 #define nvhdmi_master_pin_nid_7x	0x05
3039 
3040 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
3041 	/*front, rear, clfe, rear_surr */
3042 	0x6, 0x8, 0xa, 0xc,
3043 };
3044 
3045 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
3046 	/* set audio protect on */
3047 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
3048 	/* enable digital output on pin widget */
3049 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3050 	{} /* terminator */
3051 };
3052 
3053 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
3054 	/* set audio protect on */
3055 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
3056 	/* enable digital output on pin widget */
3057 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3058 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3059 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3060 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3061 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
3062 	{} /* terminator */
3063 };
3064 
3065 #ifdef LIMITED_RATE_FMT_SUPPORT
3066 /* support only the safe format and rate */
3067 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
3068 #define SUPPORTED_MAXBPS	16
3069 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
3070 #else
3071 /* support all rates and formats */
3072 #define SUPPORTED_RATES \
3073 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
3074 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
3075 	 SNDRV_PCM_RATE_192000)
3076 #define SUPPORTED_MAXBPS	24
3077 #define SUPPORTED_FORMATS \
3078 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
3079 #endif
3080 
3081 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
3082 {
3083 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
3084 	return 0;
3085 }
3086 
3087 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
3088 {
3089 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
3090 	return 0;
3091 }
3092 
3093 static const unsigned int channels_2_6_8[] = {
3094 	2, 6, 8
3095 };
3096 
3097 static const unsigned int channels_2_8[] = {
3098 	2, 8
3099 };
3100 
3101 static const struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
3102 	.count = ARRAY_SIZE(channels_2_6_8),
3103 	.list = channels_2_6_8,
3104 	.mask = 0,
3105 };
3106 
3107 static const struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
3108 	.count = ARRAY_SIZE(channels_2_8),
3109 	.list = channels_2_8,
3110 	.mask = 0,
3111 };
3112 
3113 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
3114 				    struct hda_codec *codec,
3115 				    struct snd_pcm_substream *substream)
3116 {
3117 	struct hdmi_spec *spec = codec->spec;
3118 	const struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
3119 
3120 	switch (codec->preset->vendor_id) {
3121 	case 0x10de0002:
3122 	case 0x10de0003:
3123 	case 0x10de0005:
3124 	case 0x10de0006:
3125 		hw_constraints_channels = &hw_constraints_2_8_channels;
3126 		break;
3127 	case 0x10de0007:
3128 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
3129 		break;
3130 	default:
3131 		break;
3132 	}
3133 
3134 	if (hw_constraints_channels != NULL) {
3135 		snd_pcm_hw_constraint_list(substream->runtime, 0,
3136 				SNDRV_PCM_HW_PARAM_CHANNELS,
3137 				hw_constraints_channels);
3138 	} else {
3139 		snd_pcm_hw_constraint_step(substream->runtime, 0,
3140 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3141 	}
3142 
3143 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
3144 }
3145 
3146 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
3147 				     struct hda_codec *codec,
3148 				     struct snd_pcm_substream *substream)
3149 {
3150 	struct hdmi_spec *spec = codec->spec;
3151 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
3152 }
3153 
3154 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
3155 				       struct hda_codec *codec,
3156 				       unsigned int stream_tag,
3157 				       unsigned int format,
3158 				       struct snd_pcm_substream *substream)
3159 {
3160 	struct hdmi_spec *spec = codec->spec;
3161 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
3162 					     stream_tag, format, substream);
3163 }
3164 
3165 static const struct hda_pcm_stream simple_pcm_playback = {
3166 	.substreams = 1,
3167 	.channels_min = 2,
3168 	.channels_max = 2,
3169 	.ops = {
3170 		.open = simple_playback_pcm_open,
3171 		.close = simple_playback_pcm_close,
3172 		.prepare = simple_playback_pcm_prepare
3173 	},
3174 };
3175 
3176 static const struct hda_codec_ops simple_hdmi_patch_ops = {
3177 	.build_controls = simple_playback_build_controls,
3178 	.build_pcms = simple_playback_build_pcms,
3179 	.init = simple_playback_init,
3180 	.free = simple_playback_free,
3181 	.unsol_event = simple_hdmi_unsol_event,
3182 };
3183 
3184 static int patch_simple_hdmi(struct hda_codec *codec,
3185 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
3186 {
3187 	struct hdmi_spec *spec;
3188 	struct hdmi_spec_per_cvt *per_cvt;
3189 	struct hdmi_spec_per_pin *per_pin;
3190 
3191 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
3192 	if (!spec)
3193 		return -ENOMEM;
3194 
3195 	spec->codec = codec;
3196 	codec->spec = spec;
3197 	hdmi_array_init(spec, 1);
3198 
3199 	spec->multiout.num_dacs = 0;  /* no analog */
3200 	spec->multiout.max_channels = 2;
3201 	spec->multiout.dig_out_nid = cvt_nid;
3202 	spec->num_cvts = 1;
3203 	spec->num_pins = 1;
3204 	per_pin = snd_array_new(&spec->pins);
3205 	per_cvt = snd_array_new(&spec->cvts);
3206 	if (!per_pin || !per_cvt) {
3207 		simple_playback_free(codec);
3208 		return -ENOMEM;
3209 	}
3210 	per_cvt->cvt_nid = cvt_nid;
3211 	per_pin->pin_nid = pin_nid;
3212 	spec->pcm_playback = simple_pcm_playback;
3213 
3214 	codec->patch_ops = simple_hdmi_patch_ops;
3215 
3216 	return 0;
3217 }
3218 
3219 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
3220 						    int channels)
3221 {
3222 	unsigned int chanmask;
3223 	int chan = channels ? (channels - 1) : 1;
3224 
3225 	switch (channels) {
3226 	default:
3227 	case 0:
3228 	case 2:
3229 		chanmask = 0x00;
3230 		break;
3231 	case 4:
3232 		chanmask = 0x08;
3233 		break;
3234 	case 6:
3235 		chanmask = 0x0b;
3236 		break;
3237 	case 8:
3238 		chanmask = 0x13;
3239 		break;
3240 	}
3241 
3242 	/* Set the audio infoframe channel allocation and checksum fields.  The
3243 	 * channel count is computed implicitly by the hardware. */
3244 	snd_hda_codec_write(codec, 0x1, 0,
3245 			Nv_VERB_SET_Channel_Allocation, chanmask);
3246 
3247 	snd_hda_codec_write(codec, 0x1, 0,
3248 			Nv_VERB_SET_Info_Frame_Checksum,
3249 			(0x71 - chan - chanmask));
3250 }
3251 
3252 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
3253 				   struct hda_codec *codec,
3254 				   struct snd_pcm_substream *substream)
3255 {
3256 	struct hdmi_spec *spec = codec->spec;
3257 	int i;
3258 
3259 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
3260 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
3261 	for (i = 0; i < 4; i++) {
3262 		/* set the stream id */
3263 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
3264 				AC_VERB_SET_CHANNEL_STREAMID, 0);
3265 		/* set the stream format */
3266 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
3267 				AC_VERB_SET_STREAM_FORMAT, 0);
3268 	}
3269 
3270 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
3271 	 * streams are disabled. */
3272 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
3273 
3274 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
3275 }
3276 
3277 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
3278 				     struct hda_codec *codec,
3279 				     unsigned int stream_tag,
3280 				     unsigned int format,
3281 				     struct snd_pcm_substream *substream)
3282 {
3283 	int chs;
3284 	unsigned int dataDCC2, channel_id;
3285 	int i;
3286 	struct hdmi_spec *spec = codec->spec;
3287 	struct hda_spdif_out *spdif;
3288 	struct hdmi_spec_per_cvt *per_cvt;
3289 
3290 	mutex_lock(&codec->spdif_mutex);
3291 	per_cvt = get_cvt(spec, 0);
3292 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
3293 
3294 	chs = substream->runtime->channels;
3295 
3296 	dataDCC2 = 0x2;
3297 
3298 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
3299 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
3300 		snd_hda_codec_write(codec,
3301 				nvhdmi_master_con_nid_7x,
3302 				0,
3303 				AC_VERB_SET_DIGI_CONVERT_1,
3304 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
3305 
3306 	/* set the stream id */
3307 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
3308 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
3309 
3310 	/* set the stream format */
3311 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
3312 			AC_VERB_SET_STREAM_FORMAT, format);
3313 
3314 	/* turn on again (if needed) */
3315 	/* enable and set the channel status audio/data flag */
3316 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
3317 		snd_hda_codec_write(codec,
3318 				nvhdmi_master_con_nid_7x,
3319 				0,
3320 				AC_VERB_SET_DIGI_CONVERT_1,
3321 				spdif->ctls & 0xff);
3322 		snd_hda_codec_write(codec,
3323 				nvhdmi_master_con_nid_7x,
3324 				0,
3325 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
3326 	}
3327 
3328 	for (i = 0; i < 4; i++) {
3329 		if (chs == 2)
3330 			channel_id = 0;
3331 		else
3332 			channel_id = i * 2;
3333 
3334 		/* turn off SPDIF once;
3335 		 *otherwise the IEC958 bits won't be updated
3336 		 */
3337 		if (codec->spdif_status_reset &&
3338 		(spdif->ctls & AC_DIG1_ENABLE))
3339 			snd_hda_codec_write(codec,
3340 				nvhdmi_con_nids_7x[i],
3341 				0,
3342 				AC_VERB_SET_DIGI_CONVERT_1,
3343 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
3344 		/* set the stream id */
3345 		snd_hda_codec_write(codec,
3346 				nvhdmi_con_nids_7x[i],
3347 				0,
3348 				AC_VERB_SET_CHANNEL_STREAMID,
3349 				(stream_tag << 4) | channel_id);
3350 		/* set the stream format */
3351 		snd_hda_codec_write(codec,
3352 				nvhdmi_con_nids_7x[i],
3353 				0,
3354 				AC_VERB_SET_STREAM_FORMAT,
3355 				format);
3356 		/* turn on again (if needed) */
3357 		/* enable and set the channel status audio/data flag */
3358 		if (codec->spdif_status_reset &&
3359 		(spdif->ctls & AC_DIG1_ENABLE)) {
3360 			snd_hda_codec_write(codec,
3361 					nvhdmi_con_nids_7x[i],
3362 					0,
3363 					AC_VERB_SET_DIGI_CONVERT_1,
3364 					spdif->ctls & 0xff);
3365 			snd_hda_codec_write(codec,
3366 					nvhdmi_con_nids_7x[i],
3367 					0,
3368 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
3369 		}
3370 	}
3371 
3372 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
3373 
3374 	mutex_unlock(&codec->spdif_mutex);
3375 	return 0;
3376 }
3377 
3378 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
3379 	.substreams = 1,
3380 	.channels_min = 2,
3381 	.channels_max = 8,
3382 	.nid = nvhdmi_master_con_nid_7x,
3383 	.rates = SUPPORTED_RATES,
3384 	.maxbps = SUPPORTED_MAXBPS,
3385 	.formats = SUPPORTED_FORMATS,
3386 	.ops = {
3387 		.open = simple_playback_pcm_open,
3388 		.close = nvhdmi_8ch_7x_pcm_close,
3389 		.prepare = nvhdmi_8ch_7x_pcm_prepare
3390 	},
3391 };
3392 
3393 static int patch_nvhdmi_2ch(struct hda_codec *codec)
3394 {
3395 	struct hdmi_spec *spec;
3396 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
3397 				    nvhdmi_master_pin_nid_7x);
3398 	if (err < 0)
3399 		return err;
3400 
3401 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
3402 	/* override the PCM rates, etc, as the codec doesn't give full list */
3403 	spec = codec->spec;
3404 	spec->pcm_playback.rates = SUPPORTED_RATES;
3405 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
3406 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
3407 	return 0;
3408 }
3409 
3410 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
3411 {
3412 	struct hdmi_spec *spec = codec->spec;
3413 	int err = simple_playback_build_pcms(codec);
3414 	if (!err) {
3415 		struct hda_pcm *info = get_pcm_rec(spec, 0);
3416 		info->own_chmap = true;
3417 	}
3418 	return err;
3419 }
3420 
3421 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
3422 {
3423 	struct hdmi_spec *spec = codec->spec;
3424 	struct hda_pcm *info;
3425 	struct snd_pcm_chmap *chmap;
3426 	int err;
3427 
3428 	err = simple_playback_build_controls(codec);
3429 	if (err < 0)
3430 		return err;
3431 
3432 	/* add channel maps */
3433 	info = get_pcm_rec(spec, 0);
3434 	err = snd_pcm_add_chmap_ctls(info->pcm,
3435 				     SNDRV_PCM_STREAM_PLAYBACK,
3436 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
3437 	if (err < 0)
3438 		return err;
3439 	switch (codec->preset->vendor_id) {
3440 	case 0x10de0002:
3441 	case 0x10de0003:
3442 	case 0x10de0005:
3443 	case 0x10de0006:
3444 		chmap->channel_mask = (1U << 2) | (1U << 8);
3445 		break;
3446 	case 0x10de0007:
3447 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
3448 	}
3449 	return 0;
3450 }
3451 
3452 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
3453 {
3454 	struct hdmi_spec *spec;
3455 	int err = patch_nvhdmi_2ch(codec);
3456 	if (err < 0)
3457 		return err;
3458 	spec = codec->spec;
3459 	spec->multiout.max_channels = 8;
3460 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
3461 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
3462 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
3463 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
3464 
3465 	/* Initialize the audio infoframe channel mask and checksum to something
3466 	 * valid */
3467 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
3468 
3469 	return 0;
3470 }
3471 
3472 /*
3473  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
3474  * - 0x10de0015
3475  * - 0x10de0040
3476  */
3477 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap,
3478 		struct hdac_cea_channel_speaker_allocation *cap, int channels)
3479 {
3480 	if (cap->ca_index == 0x00 && channels == 2)
3481 		return SNDRV_CTL_TLVT_CHMAP_FIXED;
3482 
3483 	/* If the speaker allocation matches the channel count, it is OK. */
3484 	if (cap->channels != channels)
3485 		return -1;
3486 
3487 	/* all channels are remappable freely */
3488 	return SNDRV_CTL_TLVT_CHMAP_VAR;
3489 }
3490 
3491 static int nvhdmi_chmap_validate(struct hdac_chmap *chmap,
3492 		int ca, int chs, unsigned char *map)
3493 {
3494 	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
3495 		return -EINVAL;
3496 
3497 	return 0;
3498 }
3499 
3500 /* map from pin NID to port; port is 0-based */
3501 /* for Nvidia: assume widget NID starting from 4, with step 1 (4, 5, 6, ...) */
3502 static int nvhdmi_pin2port(void *audio_ptr, int pin_nid)
3503 {
3504 	return pin_nid - 4;
3505 }
3506 
3507 /* reverse-map from port to pin NID: see above */
3508 static int nvhdmi_port2pin(struct hda_codec *codec, int port)
3509 {
3510 	return port + 4;
3511 }
3512 
3513 static const struct drm_audio_component_audio_ops nvhdmi_audio_ops = {
3514 	.pin2port = nvhdmi_pin2port,
3515 	.pin_eld_notify = generic_acomp_pin_eld_notify,
3516 	.master_bind = generic_acomp_master_bind,
3517 	.master_unbind = generic_acomp_master_unbind,
3518 };
3519 
3520 static int patch_nvhdmi(struct hda_codec *codec)
3521 {
3522 	struct hdmi_spec *spec;
3523 	int err;
3524 
3525 	err = alloc_generic_hdmi(codec);
3526 	if (err < 0)
3527 		return err;
3528 	codec->dp_mst = true;
3529 
3530 	spec = codec->spec;
3531 	spec->dyn_pcm_assign = true;
3532 
3533 	err = hdmi_parse_codec(codec);
3534 	if (err < 0) {
3535 		generic_spec_free(codec);
3536 		return err;
3537 	}
3538 
3539 	generic_hdmi_init_per_pins(codec);
3540 
3541 	spec->dyn_pin_out = true;
3542 
3543 	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3544 		nvhdmi_chmap_cea_alloc_validate_get_type;
3545 	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
3546 
3547 	codec->link_down_at_suspend = 1;
3548 
3549 	generic_acomp_init(codec, &nvhdmi_audio_ops, nvhdmi_port2pin);
3550 
3551 	return 0;
3552 }
3553 
3554 static int patch_nvhdmi_legacy(struct hda_codec *codec)
3555 {
3556 	struct hdmi_spec *spec;
3557 	int err;
3558 
3559 	err = patch_generic_hdmi(codec);
3560 	if (err)
3561 		return err;
3562 
3563 	spec = codec->spec;
3564 	spec->dyn_pin_out = true;
3565 
3566 	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3567 		nvhdmi_chmap_cea_alloc_validate_get_type;
3568 	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
3569 
3570 	codec->link_down_at_suspend = 1;
3571 
3572 	return 0;
3573 }
3574 
3575 /*
3576  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
3577  * accessed using vendor-defined verbs. These registers can be used for
3578  * interoperability between the HDA and HDMI drivers.
3579  */
3580 
3581 /* Audio Function Group node */
3582 #define NVIDIA_AFG_NID 0x01
3583 
3584 /*
3585  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
3586  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
3587  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
3588  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
3589  * additional bit (at position 30) to signal the validity of the format.
3590  *
3591  * | 31      | 30    | 29  16 | 15   0 |
3592  * +---------+-------+--------+--------+
3593  * | TRIGGER | VALID | UNUSED | FORMAT |
3594  * +-----------------------------------|
3595  *
3596  * Note that for the trigger bit to take effect it needs to change value
3597  * (i.e. it needs to be toggled).
3598  */
3599 #define NVIDIA_GET_SCRATCH0		0xfa6
3600 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
3601 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
3602 #define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
3603 #define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
3604 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
3605 #define NVIDIA_SCRATCH_VALID   (1 << 6)
3606 
3607 #define NVIDIA_GET_SCRATCH1		0xfab
3608 #define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
3609 #define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
3610 #define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
3611 #define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
3612 
3613 /*
3614  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
3615  * the format is invalidated so that the HDMI codec can be disabled.
3616  */
3617 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
3618 {
3619 	unsigned int value;
3620 
3621 	/* bits [31:30] contain the trigger and valid bits */
3622 	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3623 				   NVIDIA_GET_SCRATCH0, 0);
3624 	value = (value >> 24) & 0xff;
3625 
3626 	/* bits [15:0] are used to store the HDA format */
3627 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3628 			    NVIDIA_SET_SCRATCH0_BYTE0,
3629 			    (format >> 0) & 0xff);
3630 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3631 			    NVIDIA_SET_SCRATCH0_BYTE1,
3632 			    (format >> 8) & 0xff);
3633 
3634 	/* bits [16:24] are unused */
3635 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3636 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
3637 
3638 	/*
3639 	 * Bit 30 signals that the data is valid and hence that HDMI audio can
3640 	 * be enabled.
3641 	 */
3642 	if (format == 0)
3643 		value &= ~NVIDIA_SCRATCH_VALID;
3644 	else
3645 		value |= NVIDIA_SCRATCH_VALID;
3646 
3647 	/*
3648 	 * Whenever the trigger bit is toggled, an interrupt is raised in the
3649 	 * HDMI codec. The HDMI driver will use that as trigger to update its
3650 	 * configuration.
3651 	 */
3652 	value ^= NVIDIA_SCRATCH_TRIGGER;
3653 
3654 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3655 			    NVIDIA_SET_SCRATCH0_BYTE3, value);
3656 }
3657 
3658 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3659 				  struct hda_codec *codec,
3660 				  unsigned int stream_tag,
3661 				  unsigned int format,
3662 				  struct snd_pcm_substream *substream)
3663 {
3664 	int err;
3665 
3666 	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3667 						format, substream);
3668 	if (err < 0)
3669 		return err;
3670 
3671 	/* notify the HDMI codec of the format change */
3672 	tegra_hdmi_set_format(codec, format);
3673 
3674 	return 0;
3675 }
3676 
3677 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3678 				  struct hda_codec *codec,
3679 				  struct snd_pcm_substream *substream)
3680 {
3681 	/* invalidate the format in the HDMI codec */
3682 	tegra_hdmi_set_format(codec, 0);
3683 
3684 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3685 }
3686 
3687 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3688 {
3689 	struct hdmi_spec *spec = codec->spec;
3690 	unsigned int i;
3691 
3692 	for (i = 0; i < spec->num_pins; i++) {
3693 		struct hda_pcm *pcm = get_pcm_rec(spec, i);
3694 
3695 		if (pcm->pcm_type == type)
3696 			return pcm;
3697 	}
3698 
3699 	return NULL;
3700 }
3701 
3702 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3703 {
3704 	struct hda_pcm_stream *stream;
3705 	struct hda_pcm *pcm;
3706 	int err;
3707 
3708 	err = generic_hdmi_build_pcms(codec);
3709 	if (err < 0)
3710 		return err;
3711 
3712 	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3713 	if (!pcm)
3714 		return -ENODEV;
3715 
3716 	/*
3717 	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
3718 	 * codec about format changes.
3719 	 */
3720 	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3721 	stream->ops.prepare = tegra_hdmi_pcm_prepare;
3722 	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3723 
3724 	return 0;
3725 }
3726 
3727 static int patch_tegra_hdmi(struct hda_codec *codec)
3728 {
3729 	int err;
3730 
3731 	err = patch_generic_hdmi(codec);
3732 	if (err)
3733 		return err;
3734 
3735 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3736 
3737 	return 0;
3738 }
3739 
3740 /*
3741  * ATI/AMD-specific implementations
3742  */
3743 
3744 #define is_amdhdmi_rev3_or_later(codec) \
3745 	((codec)->core.vendor_id == 0x1002aa01 && \
3746 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
3747 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3748 
3749 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3750 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
3751 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
3752 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
3753 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
3754 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
3755 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
3756 #define ATI_VERB_SET_HBR_CONTROL	0x77c
3757 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
3758 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
3759 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
3760 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
3761 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
3762 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
3763 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
3764 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
3765 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
3766 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
3767 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
3768 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
3769 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
3770 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
3771 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
3772 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
3773 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
3774 
3775 /* AMD specific HDA cvt verbs */
3776 #define ATI_VERB_SET_RAMP_RATE		0x770
3777 #define ATI_VERB_GET_RAMP_RATE		0xf70
3778 
3779 #define ATI_OUT_ENABLE 0x1
3780 
3781 #define ATI_MULTICHANNEL_MODE_PAIRED	0
3782 #define ATI_MULTICHANNEL_MODE_SINGLE	1
3783 
3784 #define ATI_HBR_CAPABLE 0x01
3785 #define ATI_HBR_ENABLE 0x10
3786 
3787 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3788 			       int dev_id, unsigned char *buf, int *eld_size)
3789 {
3790 	WARN_ON(dev_id != 0);
3791 	/* call hda_eld.c ATI/AMD-specific function */
3792 	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3793 				    is_amdhdmi_rev3_or_later(codec));
3794 }
3795 
3796 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec,
3797 					hda_nid_t pin_nid, int dev_id, int ca,
3798 					int active_channels, int conn_type)
3799 {
3800 	WARN_ON(dev_id != 0);
3801 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3802 }
3803 
3804 static int atihdmi_paired_swap_fc_lfe(int pos)
3805 {
3806 	/*
3807 	 * ATI/AMD have automatic FC/LFE swap built-in
3808 	 * when in pairwise mapping mode.
3809 	 */
3810 
3811 	switch (pos) {
3812 		/* see channel_allocations[].speakers[] */
3813 		case 2: return 3;
3814 		case 3: return 2;
3815 		default: break;
3816 	}
3817 
3818 	return pos;
3819 }
3820 
3821 static int atihdmi_paired_chmap_validate(struct hdac_chmap *chmap,
3822 			int ca, int chs, unsigned char *map)
3823 {
3824 	struct hdac_cea_channel_speaker_allocation *cap;
3825 	int i, j;
3826 
3827 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3828 
3829 	cap = snd_hdac_get_ch_alloc_from_ca(ca);
3830 	for (i = 0; i < chs; ++i) {
3831 		int mask = snd_hdac_chmap_to_spk_mask(map[i]);
3832 		bool ok = false;
3833 		bool companion_ok = false;
3834 
3835 		if (!mask)
3836 			continue;
3837 
3838 		for (j = 0 + i % 2; j < 8; j += 2) {
3839 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3840 			if (cap->speakers[chan_idx] == mask) {
3841 				/* channel is in a supported position */
3842 				ok = true;
3843 
3844 				if (i % 2 == 0 && i + 1 < chs) {
3845 					/* even channel, check the odd companion */
3846 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3847 					int comp_mask_req = snd_hdac_chmap_to_spk_mask(map[i+1]);
3848 					int comp_mask_act = cap->speakers[comp_chan_idx];
3849 
3850 					if (comp_mask_req == comp_mask_act)
3851 						companion_ok = true;
3852 					else
3853 						return -EINVAL;
3854 				}
3855 				break;
3856 			}
3857 		}
3858 
3859 		if (!ok)
3860 			return -EINVAL;
3861 
3862 		if (companion_ok)
3863 			i++; /* companion channel already checked */
3864 	}
3865 
3866 	return 0;
3867 }
3868 
3869 static int atihdmi_pin_set_slot_channel(struct hdac_device *hdac,
3870 		hda_nid_t pin_nid, int hdmi_slot, int stream_channel)
3871 {
3872 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3873 	int verb;
3874 	int ati_channel_setup = 0;
3875 
3876 	if (hdmi_slot > 7)
3877 		return -EINVAL;
3878 
3879 	if (!has_amd_full_remap_support(codec)) {
3880 		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3881 
3882 		/* In case this is an odd slot but without stream channel, do not
3883 		 * disable the slot since the corresponding even slot could have a
3884 		 * channel. In case neither have a channel, the slot pair will be
3885 		 * disabled when this function is called for the even slot. */
3886 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3887 			return 0;
3888 
3889 		hdmi_slot -= hdmi_slot % 2;
3890 
3891 		if (stream_channel != 0xf)
3892 			stream_channel -= stream_channel % 2;
3893 	}
3894 
3895 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3896 
3897 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3898 
3899 	if (stream_channel != 0xf)
3900 		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3901 
3902 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3903 }
3904 
3905 static int atihdmi_pin_get_slot_channel(struct hdac_device *hdac,
3906 				hda_nid_t pin_nid, int asp_slot)
3907 {
3908 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3909 	bool was_odd = false;
3910 	int ati_asp_slot = asp_slot;
3911 	int verb;
3912 	int ati_channel_setup;
3913 
3914 	if (asp_slot > 7)
3915 		return -EINVAL;
3916 
3917 	if (!has_amd_full_remap_support(codec)) {
3918 		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3919 		if (ati_asp_slot % 2 != 0) {
3920 			ati_asp_slot -= 1;
3921 			was_odd = true;
3922 		}
3923 	}
3924 
3925 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3926 
3927 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3928 
3929 	if (!(ati_channel_setup & ATI_OUT_ENABLE))
3930 		return 0xf;
3931 
3932 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3933 }
3934 
3935 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(
3936 		struct hdac_chmap *chmap,
3937 		struct hdac_cea_channel_speaker_allocation *cap,
3938 		int channels)
3939 {
3940 	int c;
3941 
3942 	/*
3943 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3944 	 * we need to take that into account (a single channel may take 2
3945 	 * channel slots if we need to carry a silent channel next to it).
3946 	 * On Rev3+ AMD codecs this function is not used.
3947 	 */
3948 	int chanpairs = 0;
3949 
3950 	/* We only produce even-numbered channel count TLVs */
3951 	if ((channels % 2) != 0)
3952 		return -1;
3953 
3954 	for (c = 0; c < 7; c += 2) {
3955 		if (cap->speakers[c] || cap->speakers[c+1])
3956 			chanpairs++;
3957 	}
3958 
3959 	if (chanpairs * 2 != channels)
3960 		return -1;
3961 
3962 	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3963 }
3964 
3965 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct hdac_chmap *hchmap,
3966 		struct hdac_cea_channel_speaker_allocation *cap,
3967 		unsigned int *chmap, int channels)
3968 {
3969 	/* produce paired maps for pre-rev3 ATI/AMD codecs */
3970 	int count = 0;
3971 	int c;
3972 
3973 	for (c = 7; c >= 0; c--) {
3974 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3975 		int spk = cap->speakers[chan];
3976 		if (!spk) {
3977 			/* add N/A channel if the companion channel is occupied */
3978 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3979 				chmap[count++] = SNDRV_CHMAP_NA;
3980 
3981 			continue;
3982 		}
3983 
3984 		chmap[count++] = snd_hdac_spk_to_chmap(spk);
3985 	}
3986 
3987 	WARN_ON(count != channels);
3988 }
3989 
3990 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3991 				 int dev_id, bool hbr)
3992 {
3993 	int hbr_ctl, hbr_ctl_new;
3994 
3995 	WARN_ON(dev_id != 0);
3996 
3997 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3998 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3999 		if (hbr)
4000 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
4001 		else
4002 			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
4003 
4004 		codec_dbg(codec,
4005 			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
4006 				pin_nid,
4007 				hbr_ctl == hbr_ctl_new ? "" : "new-",
4008 				hbr_ctl_new);
4009 
4010 		if (hbr_ctl != hbr_ctl_new)
4011 			snd_hda_codec_write(codec, pin_nid, 0,
4012 						ATI_VERB_SET_HBR_CONTROL,
4013 						hbr_ctl_new);
4014 
4015 	} else if (hbr)
4016 		return -EINVAL;
4017 
4018 	return 0;
4019 }
4020 
4021 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
4022 				hda_nid_t pin_nid, int dev_id,
4023 				u32 stream_tag, int format)
4024 {
4025 	if (is_amdhdmi_rev3_or_later(codec)) {
4026 		int ramp_rate = 180; /* default as per AMD spec */
4027 		/* disable ramp-up/down for non-pcm as per AMD spec */
4028 		if (format & AC_FMT_TYPE_NON_PCM)
4029 			ramp_rate = 0;
4030 
4031 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
4032 	}
4033 
4034 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, dev_id,
4035 				 stream_tag, format);
4036 }
4037 
4038 
4039 static int atihdmi_init(struct hda_codec *codec)
4040 {
4041 	struct hdmi_spec *spec = codec->spec;
4042 	int pin_idx, err;
4043 
4044 	err = generic_hdmi_init(codec);
4045 
4046 	if (err)
4047 		return err;
4048 
4049 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
4050 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
4051 
4052 		/* make sure downmix information in infoframe is zero */
4053 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
4054 
4055 		/* enable channel-wise remap mode if supported */
4056 		if (has_amd_full_remap_support(codec))
4057 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
4058 					    ATI_VERB_SET_MULTICHANNEL_MODE,
4059 					    ATI_MULTICHANNEL_MODE_SINGLE);
4060 	}
4061 	codec->auto_runtime_pm = 1;
4062 
4063 	return 0;
4064 }
4065 
4066 /* map from pin NID to port; port is 0-based */
4067 /* for AMD: assume widget NID starting from 3, with step 2 (3, 5, 7, ...) */
4068 static int atihdmi_pin2port(void *audio_ptr, int pin_nid)
4069 {
4070 	return pin_nid / 2 - 1;
4071 }
4072 
4073 /* reverse-map from port to pin NID: see above */
4074 static int atihdmi_port2pin(struct hda_codec *codec, int port)
4075 {
4076 	return port * 2 + 3;
4077 }
4078 
4079 static const struct drm_audio_component_audio_ops atihdmi_audio_ops = {
4080 	.pin2port = atihdmi_pin2port,
4081 	.pin_eld_notify = generic_acomp_pin_eld_notify,
4082 	.master_bind = generic_acomp_master_bind,
4083 	.master_unbind = generic_acomp_master_unbind,
4084 };
4085 
4086 static int patch_atihdmi(struct hda_codec *codec)
4087 {
4088 	struct hdmi_spec *spec;
4089 	struct hdmi_spec_per_cvt *per_cvt;
4090 	int err, cvt_idx;
4091 
4092 	err = patch_generic_hdmi(codec);
4093 
4094 	if (err)
4095 		return err;
4096 
4097 	codec->patch_ops.init = atihdmi_init;
4098 
4099 	spec = codec->spec;
4100 
4101 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
4102 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
4103 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
4104 	spec->ops.setup_stream = atihdmi_setup_stream;
4105 
4106 	spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
4107 	spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
4108 
4109 	if (!has_amd_full_remap_support(codec)) {
4110 		/* override to ATI/AMD-specific versions with pairwise mapping */
4111 		spec->chmap.ops.chmap_cea_alloc_validate_get_type =
4112 			atihdmi_paired_chmap_cea_alloc_validate_get_type;
4113 		spec->chmap.ops.cea_alloc_to_tlv_chmap =
4114 				atihdmi_paired_cea_alloc_to_tlv_chmap;
4115 		spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;
4116 	}
4117 
4118 	/* ATI/AMD converters do not advertise all of their capabilities */
4119 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
4120 		per_cvt = get_cvt(spec, cvt_idx);
4121 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
4122 		per_cvt->rates |= SUPPORTED_RATES;
4123 		per_cvt->formats |= SUPPORTED_FORMATS;
4124 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
4125 	}
4126 
4127 	spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);
4128 
4129 	/* AMD GPUs have neither EPSS nor CLKSTOP bits, hence preventing
4130 	 * the link-down as is.  Tell the core to allow it.
4131 	 */
4132 	codec->link_down_at_suspend = 1;
4133 
4134 	generic_acomp_init(codec, &atihdmi_audio_ops, atihdmi_port2pin);
4135 
4136 	return 0;
4137 }
4138 
4139 /* VIA HDMI Implementation */
4140 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
4141 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
4142 
4143 static int patch_via_hdmi(struct hda_codec *codec)
4144 {
4145 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
4146 }
4147 
4148 /*
4149  * patch entries
4150  */
4151 static const struct hda_device_id snd_hda_id_hdmi[] = {
4152 HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",	patch_atihdmi),
4153 HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",	patch_atihdmi),
4154 HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",	patch_atihdmi),
4155 HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
4156 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
4157 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
4158 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
4159 HDA_CODEC_ENTRY(0x10de0001, "MCP73 HDMI",	patch_nvhdmi_2ch),
4160 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
4161 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
4162 HDA_CODEC_ENTRY(0x10de0004, "GPU 04 HDMI",	patch_nvhdmi_8ch_7x),
4163 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
4164 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
4165 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
4166 HDA_CODEC_ENTRY(0x10de0008, "GPU 08 HDMI/DP",	patch_nvhdmi_legacy),
4167 HDA_CODEC_ENTRY(0x10de0009, "GPU 09 HDMI/DP",	patch_nvhdmi_legacy),
4168 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi_legacy),
4169 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi_legacy),
4170 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi_legacy),
4171 HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",	patch_nvhdmi_legacy),
4172 HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",	patch_nvhdmi_legacy),
4173 HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",	patch_nvhdmi_legacy),
4174 HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",	patch_nvhdmi_legacy),
4175 HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",	patch_nvhdmi_legacy),
4176 HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",	patch_nvhdmi_legacy),
4177 HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",	patch_nvhdmi_legacy),
4178 HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",	patch_nvhdmi_legacy),
4179 /* 17 is known to be absent */
4180 HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",	patch_nvhdmi_legacy),
4181 HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",	patch_nvhdmi_legacy),
4182 HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",	patch_nvhdmi_legacy),
4183 HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",	patch_nvhdmi_legacy),
4184 HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",	patch_nvhdmi_legacy),
4185 HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",	patch_tegra_hdmi),
4186 HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",	patch_tegra_hdmi),
4187 HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",	patch_tegra_hdmi),
4188 HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP",	patch_tegra_hdmi),
4189 HDA_CODEC_ENTRY(0x10de002d, "Tegra186 HDMI/DP0", patch_tegra_hdmi),
4190 HDA_CODEC_ENTRY(0x10de002e, "Tegra186 HDMI/DP1", patch_tegra_hdmi),
4191 HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),
4192 HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),
4193 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
4194 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
4195 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
4196 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
4197 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
4198 HDA_CODEC_ENTRY(0x10de0045, "GPU 45 HDMI/DP",	patch_nvhdmi),
4199 HDA_CODEC_ENTRY(0x10de0050, "GPU 50 HDMI/DP",	patch_nvhdmi),
4200 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
4201 HDA_CODEC_ENTRY(0x10de0052, "GPU 52 HDMI/DP",	patch_nvhdmi),
4202 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
4203 HDA_CODEC_ENTRY(0x10de0061, "GPU 61 HDMI/DP",	patch_nvhdmi),
4204 HDA_CODEC_ENTRY(0x10de0062, "GPU 62 HDMI/DP",	patch_nvhdmi),
4205 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
4206 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
4207 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
4208 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
4209 HDA_CODEC_ENTRY(0x10de0073, "GPU 73 HDMI/DP",	patch_nvhdmi),
4210 HDA_CODEC_ENTRY(0x10de0074, "GPU 74 HDMI/DP",	patch_nvhdmi),
4211 HDA_CODEC_ENTRY(0x10de0076, "GPU 76 HDMI/DP",	patch_nvhdmi),
4212 HDA_CODEC_ENTRY(0x10de007b, "GPU 7b HDMI/DP",	patch_nvhdmi),
4213 HDA_CODEC_ENTRY(0x10de007c, "GPU 7c HDMI/DP",	patch_nvhdmi),
4214 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
4215 HDA_CODEC_ENTRY(0x10de007e, "GPU 7e HDMI/DP",	patch_nvhdmi),
4216 HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP",	patch_nvhdmi),
4217 HDA_CODEC_ENTRY(0x10de0081, "GPU 81 HDMI/DP",	patch_nvhdmi),
4218 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
4219 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
4220 HDA_CODEC_ENTRY(0x10de0084, "GPU 84 HDMI/DP",	patch_nvhdmi),
4221 HDA_CODEC_ENTRY(0x10de0090, "GPU 90 HDMI/DP",	patch_nvhdmi),
4222 HDA_CODEC_ENTRY(0x10de0091, "GPU 91 HDMI/DP",	patch_nvhdmi),
4223 HDA_CODEC_ENTRY(0x10de0092, "GPU 92 HDMI/DP",	patch_nvhdmi),
4224 HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",	patch_nvhdmi),
4225 HDA_CODEC_ENTRY(0x10de0094, "GPU 94 HDMI/DP",	patch_nvhdmi),
4226 HDA_CODEC_ENTRY(0x10de0095, "GPU 95 HDMI/DP",	patch_nvhdmi),
4227 HDA_CODEC_ENTRY(0x10de0097, "GPU 97 HDMI/DP",	patch_nvhdmi),
4228 HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",	patch_nvhdmi),
4229 HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",	patch_nvhdmi),
4230 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
4231 HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",	patch_nvhdmi_2ch),
4232 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
4233 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
4234 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
4235 HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",	patch_generic_hdmi),
4236 HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
4237 HDA_CODEC_ENTRY(0x80862800, "Geminilake HDMI",	patch_i915_glk_hdmi),
4238 HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",	patch_generic_hdmi),
4239 HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",	patch_generic_hdmi),
4240 HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",	patch_generic_hdmi),
4241 HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
4242 HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI",	patch_i915_cpt_hdmi),
4243 HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_i915_cpt_hdmi),
4244 HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",	patch_i915_hsw_hdmi),
4245 HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",	patch_i915_hsw_hdmi),
4246 HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_i915_hsw_hdmi),
4247 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_i915_hsw_hdmi),
4248 HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",	patch_i915_hsw_hdmi),
4249 HDA_CODEC_ENTRY(0x8086280c, "Cannonlake HDMI",	patch_i915_glk_hdmi),
4250 HDA_CODEC_ENTRY(0x8086280d, "Geminilake HDMI",	patch_i915_glk_hdmi),
4251 HDA_CODEC_ENTRY(0x8086280f, "Icelake HDMI",	patch_i915_icl_hdmi),
4252 HDA_CODEC_ENTRY(0x80862812, "Tigerlake HDMI",	patch_i915_tgl_hdmi),
4253 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
4254 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
4255 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
4256 HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",	patch_generic_hdmi),
4257 /* special ID for generic HDMI */
4258 HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
4259 {} /* terminator */
4260 };
4261 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
4262 
4263 MODULE_LICENSE("GPL");
4264 MODULE_DESCRIPTION("HDMI HD-audio codec");
4265 MODULE_ALIAS("snd-hda-codec-intelhdmi");
4266 MODULE_ALIAS("snd-hda-codec-nvhdmi");
4267 MODULE_ALIAS("snd-hda-codec-atihdmi");
4268 
4269 static struct hda_codec_driver hdmi_driver = {
4270 	.id = snd_hda_id_hdmi,
4271 };
4272 
4273 module_hda_codec_driver(hdmi_driver);
4274