Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4458 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
new file mode 100644
index 000000000..0d1c6c4c1
--- /dev/null
+++ b/sound/pci/hda/patch_hdmi.c
@@ -0,0 +1,4458 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
+ *
+ *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
+ *  Copyright (c) 2006 ATI Technologies Inc.
+ *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
+ *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
+ *  Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
+ *
+ *  Authors:
+ *			Wu Fengguang <wfg@linux.intel.com>
+ *
+ *  Maintained by:
+ *			Wu Fengguang <wfg@linux.intel.com>
+ */
+
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/asoundef.h>
+#include <sound/tlv.h>
+#include <sound/hdaudio.h>
+#include <sound/hda_i915.h>
+#include <sound/hda_chmap.h>
+#include <sound/hda_codec.h>
+#include "hda_local.h"
+#include "hda_jack.h"
+#include "hda_controller.h"
+
+static bool static_hdmi_pcm;
+module_param(static_hdmi_pcm, bool, 0644);
+MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
+
+static bool enable_acomp = true;
+module_param(enable_acomp, bool, 0444);
+MODULE_PARM_DESC(enable_acomp, "Enable audio component binding (default=yes)");
+
+static bool enable_silent_stream =
+IS_ENABLED(CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM);
+module_param(enable_silent_stream, bool, 0644);
+MODULE_PARM_DESC(enable_silent_stream, "Enable Silent Stream for HDMI devices");
+
+struct hdmi_spec_per_cvt {
+	hda_nid_t cvt_nid;
+	int assigned;
+	unsigned int channels_min;
+	unsigned int channels_max;
+	u32 rates;
+	u64 formats;
+	unsigned int maxbps;
+};
+
+/* max. connections to a widget */
+#define HDA_MAX_CONNECTIONS	32
+
+struct hdmi_spec_per_pin {
+	hda_nid_t pin_nid;
+	int dev_id;
+	/* pin idx, different device entries on the same pin use the same idx */
+	int pin_nid_idx;
+	int num_mux_nids;
+	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
+	int mux_idx;
+	hda_nid_t cvt_nid;
+
+	struct hda_codec *codec;
+	struct hdmi_eld sink_eld;
+	struct mutex lock;
+	struct delayed_work work;
+	struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
+	int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
+	int repoll_count;
+	bool setup; /* the stream has been set up by prepare callback */
+	bool silent_stream;
+	int channels; /* current number of channels */
+	bool non_pcm;
+	bool chmap_set;		/* channel-map override by ALSA API? */
+	unsigned char chmap[8]; /* ALSA API channel-map */
+#ifdef CONFIG_SND_PROC_FS
+	struct snd_info_entry *proc_entry;
+#endif
+};
+
+/* operations used by generic code that can be overridden by patches */
+struct hdmi_ops {
+	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
+			   int dev_id, unsigned char *buf, int *eld_size);
+
+	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
+				    int dev_id,
+				    int ca, int active_channels, int conn_type);
+
+	/* enable/disable HBR (HD passthrough) */
+	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid,
+			     int dev_id, bool hbr);
+
+	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
+			    hda_nid_t pin_nid, int dev_id, u32 stream_tag,
+			    int format);
+
+	void (*pin_cvt_fixup)(struct hda_codec *codec,
+			      struct hdmi_spec_per_pin *per_pin,
+			      hda_nid_t cvt_nid);
+};
+
+struct hdmi_pcm {
+	struct hda_pcm *pcm;
+	struct snd_jack *jack;
+	struct snd_kcontrol *eld_ctl;
+};
+
+struct hdmi_spec {
+	struct hda_codec *codec;
+	int num_cvts;
+	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
+	hda_nid_t cvt_nids[4]; /* only for haswell fix */
+
+	/*
+	 * num_pins is the number of virtual pins
+	 * for example, there are 3 pins, and each pin
+	 * has 4 device entries, then the num_pins is 12
+	 */
+	int num_pins;
+	/*
+	 * num_nids is the number of real pins
+	 * In the above example, num_nids is 3
+	 */
+	int num_nids;
+	/*
+	 * dev_num is the number of device entries
+	 * on each pin.
+	 * In the above example, dev_num is 4
+	 */
+	int dev_num;
+	struct snd_array pins; /* struct hdmi_spec_per_pin */
+	struct hdmi_pcm pcm_rec[16];
+	struct mutex pcm_lock;
+	struct mutex bind_lock; /* for audio component binding */
+	/* pcm_bitmap means which pcms have been assigned to pins*/
+	unsigned long pcm_bitmap;
+	int pcm_used;	/* counter of pcm_rec[] */
+	/* bitmap shows whether the pcm is opened in user space
+	 * bit 0 means the first playback PCM (PCM3);
+	 * bit 1 means the second playback PCM, and so on.
+	 */
+	unsigned long pcm_in_use;
+
+	struct hdmi_eld temp_eld;
+	struct hdmi_ops ops;
+
+	bool dyn_pin_out;
+	bool dyn_pcm_assign;
+	bool dyn_pcm_no_legacy;
+	bool nv_dp_workaround; /* workaround DP audio infoframe for Nvidia */
+
+	bool intel_hsw_fixup;	/* apply Intel platform-specific fixups */
+	/*
+	 * Non-generic VIA/NVIDIA specific
+	 */
+	struct hda_multi_out multiout;
+	struct hda_pcm_stream pcm_playback;
+
+	bool use_acomp_notifier; /* use eld_notify callback for hotplug */
+	bool acomp_registered; /* audio component registered in this driver */
+	bool force_connect; /* force connectivity */
+	struct drm_audio_component_audio_ops drm_audio_ops;
+	int (*port2pin)(struct hda_codec *, int); /* reverse port/pin mapping */
+
+	struct hdac_chmap chmap;
+	hda_nid_t vendor_nid;
+	const int *port_map;
+	int port_num;
+	bool send_silent_stream; /* Flag to enable silent stream feature */
+};
+
+#ifdef CONFIG_SND_HDA_COMPONENT
+static inline bool codec_has_acomp(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	return spec->use_acomp_notifier;
+}
+#else
+#define codec_has_acomp(codec)	false
+#endif
+
+struct hdmi_audio_infoframe {
+	u8 type; /* 0x84 */
+	u8 ver;  /* 0x01 */
+	u8 len;  /* 0x0a */
+
+	u8 checksum;
+
+	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
+	u8 SS01_SF24;
+	u8 CXT04;
+	u8 CA;
+	u8 LFEPBL01_LSV36_DM_INH7;
+};
+
+struct dp_audio_infoframe {
+	u8 type; /* 0x84 */
+	u8 len;  /* 0x1b */
+	u8 ver;  /* 0x11 << 2 */
+
+	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
+	u8 SS01_SF24;
+	u8 CXT04;
+	u8 CA;
+	u8 LFEPBL01_LSV36_DM_INH7;
+};
+
+union audio_infoframe {
+	struct hdmi_audio_infoframe hdmi;
+	struct dp_audio_infoframe dp;
+	u8 bytes[0];
+};
+
+/*
+ * HDMI routines
+ */
+
+#define get_pin(spec, idx) \
+	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
+#define get_cvt(spec, idx) \
+	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
+/* obtain hdmi_pcm object assigned to idx */
+#define get_hdmi_pcm(spec, idx)	(&(spec)->pcm_rec[idx])
+/* obtain hda_pcm object assigned to idx */
+#define get_pcm_rec(spec, idx)	(get_hdmi_pcm(spec, idx)->pcm)
+
+static int pin_id_to_pin_index(struct hda_codec *codec,
+			       hda_nid_t pin_nid, int dev_id)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+	struct hdmi_spec_per_pin *per_pin;
+
+	/*
+	 * (dev_id == -1) means it is NON-MST pin
+	 * return the first virtual pin on this port
+	 */
+	if (dev_id == -1)
+		dev_id = 0;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		per_pin = get_pin(spec, pin_idx);
+		if ((per_pin->pin_nid == pin_nid) &&
+			(per_pin->dev_id == dev_id))
+			return pin_idx;
+	}
+
+	codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
+	return -EINVAL;
+}
+
+static int hinfo_to_pcm_index(struct hda_codec *codec,
+			struct hda_pcm_stream *hinfo)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pcm_idx;
+
+	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++)
+		if (get_pcm_rec(spec, pcm_idx)->stream == hinfo)
+			return pcm_idx;
+
+	codec_warn(codec, "HDMI: hinfo %p not tied to a PCM\n", hinfo);
+	return -EINVAL;
+}
+
+static int hinfo_to_pin_index(struct hda_codec *codec,
+			      struct hda_pcm_stream *hinfo)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		per_pin = get_pin(spec, pin_idx);
+		if (per_pin->pcm &&
+			per_pin->pcm->pcm->stream == hinfo)
+			return pin_idx;
+	}
+
+	codec_dbg(codec, "HDMI: hinfo %p (pcm %d) not registered\n", hinfo,
+		  hinfo_to_pcm_index(codec, hinfo));
+	return -EINVAL;
+}
+
+static struct hdmi_spec_per_pin *pcm_idx_to_pin(struct hdmi_spec *spec,
+						int pcm_idx)
+{
+	int i;
+	struct hdmi_spec_per_pin *per_pin;
+
+	for (i = 0; i < spec->num_pins; i++) {
+		per_pin = get_pin(spec, i);
+		if (per_pin->pcm_idx == pcm_idx)
+			return per_pin;
+	}
+	return NULL;
+}
+
+static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int cvt_idx;
+
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
+		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
+			return cvt_idx;
+
+	codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
+	return -EINVAL;
+}
+
+static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_info *uinfo)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
+	struct hdmi_eld *eld;
+	int pcm_idx;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+
+	pcm_idx = kcontrol->private_value;
+	mutex_lock(&spec->pcm_lock);
+	per_pin = pcm_idx_to_pin(spec, pcm_idx);
+	if (!per_pin) {
+		/* no pin is bound to the pcm */
+		uinfo->count = 0;
+		goto unlock;
+	}
+	eld = &per_pin->sink_eld;
+	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
+
+ unlock:
+	mutex_unlock(&spec->pcm_lock);
+	return 0;
+}
+
+static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
+	struct hdmi_eld *eld;
+	int pcm_idx;
+	int err = 0;
+
+	pcm_idx = kcontrol->private_value;
+	mutex_lock(&spec->pcm_lock);
+	per_pin = pcm_idx_to_pin(spec, pcm_idx);
+	if (!per_pin) {
+		/* no pin is bound to the pcm */
+		memset(ucontrol->value.bytes.data, 0,
+		       ARRAY_SIZE(ucontrol->value.bytes.data));
+		goto unlock;
+	}
+
+	eld = &per_pin->sink_eld;
+	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
+	    eld->eld_size > ELD_MAX_SIZE) {
+		snd_BUG();
+		err = -EINVAL;
+		goto unlock;
+	}
+
+	memset(ucontrol->value.bytes.data, 0,
+	       ARRAY_SIZE(ucontrol->value.bytes.data));
+	if (eld->eld_valid)
+		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
+		       eld->eld_size);
+
+ unlock:
+	mutex_unlock(&spec->pcm_lock);
+	return err;
+}
+
+static const struct snd_kcontrol_new eld_bytes_ctl = {
+	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE |
+		SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK,
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name = "ELD",
+	.info = hdmi_eld_ctl_info,
+	.get = hdmi_eld_ctl_get,
+};
+
+static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
+			int device)
+{
+	struct snd_kcontrol *kctl;
+	struct hdmi_spec *spec = codec->spec;
+	int err;
+
+	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
+	if (!kctl)
+		return -ENOMEM;
+	kctl->private_value = pcm_idx;
+	kctl->id.device = device;
+
+	/* no pin nid is associated with the kctl now
+	 * tbd: associate pin nid to eld ctl later
+	 */
+	err = snd_hda_ctl_add(codec, 0, kctl);
+	if (err < 0)
+		return err;
+
+	get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
+	return 0;
+}
+
+#ifdef BE_PARANOID
+static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
+				int *packet_index, int *byte_index)
+{
+	int val;
+
+	val = snd_hda_codec_read(codec, pin_nid, 0,
+				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
+
+	*packet_index = val >> 5;
+	*byte_index = val & 0x1f;
+}
+#endif
+
+static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
+				int packet_index, int byte_index)
+{
+	int val;
+
+	val = (packet_index << 5) | (byte_index & 0x1f);
+
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
+}
+
+static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
+				unsigned char val)
+{
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
+}
+
+static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_out;
+
+	/* Unmute */
+	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, pin_nid, 0,
+				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+
+	if (spec->dyn_pin_out)
+		/* Disable pin out until stream is active */
+		pin_out = 0;
+	else
+		/* Enable pin out: some machines with GM965 gets broken output
+		 * when the pin is disabled or changed while using with HDMI
+		 */
+		pin_out = PIN_OUT;
+
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
+}
+
+/*
+ * ELD proc files
+ */
+
+#ifdef CONFIG_SND_PROC_FS
+static void print_eld_info(struct snd_info_entry *entry,
+			   struct snd_info_buffer *buffer)
+{
+	struct hdmi_spec_per_pin *per_pin = entry->private_data;
+
+	mutex_lock(&per_pin->lock);
+	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
+	mutex_unlock(&per_pin->lock);
+}
+
+static void write_eld_info(struct snd_info_entry *entry,
+			   struct snd_info_buffer *buffer)
+{
+	struct hdmi_spec_per_pin *per_pin = entry->private_data;
+
+	mutex_lock(&per_pin->lock);
+	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
+	mutex_unlock(&per_pin->lock);
+}
+
+static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
+{
+	char name[32];
+	struct hda_codec *codec = per_pin->codec;
+	struct snd_info_entry *entry;
+	int err;
+
+	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
+	err = snd_card_proc_new(codec->card, name, &entry);
+	if (err < 0)
+		return err;
+
+	snd_info_set_text_ops(entry, per_pin, print_eld_info);
+	entry->c.text.write = write_eld_info;
+	entry->mode |= 0200;
+	per_pin->proc_entry = entry;
+
+	return 0;
+}
+
+static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
+{
+	if (!per_pin->codec->bus->shutdown) {
+		snd_info_free_entry(per_pin->proc_entry);
+		per_pin->proc_entry = NULL;
+	}
+}
+#else
+static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
+			       int index)
+{
+	return 0;
+}
+static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
+{
+}
+#endif
+
+/*
+ * Audio InfoFrame routines
+ */
+
+/*
+ * Enable Audio InfoFrame Transmission
+ */
+static void hdmi_start_infoframe_trans(struct hda_codec *codec,
+				       hda_nid_t pin_nid)
+{
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+						AC_DIPXMIT_BEST);
+}
+
+/*
+ * Disable Audio InfoFrame Transmission
+ */
+static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
+				      hda_nid_t pin_nid)
+{
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+						AC_DIPXMIT_DISABLE);
+}
+
+static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+	int i;
+	int size;
+
+	size = snd_hdmi_get_eld_size(codec, pin_nid);
+	codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
+
+	for (i = 0; i < 8; i++) {
+		size = snd_hda_codec_read(codec, pin_nid, 0,
+						AC_VERB_GET_HDMI_DIP_SIZE, i);
+		codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
+	}
+#endif
+}
+
+static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+#ifdef BE_PARANOID
+	int i, j;
+	int size;
+	int pi, bi;
+	for (i = 0; i < 8; i++) {
+		size = snd_hda_codec_read(codec, pin_nid, 0,
+						AC_VERB_GET_HDMI_DIP_SIZE, i);
+		if (size == 0)
+			continue;
+
+		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
+		for (j = 1; j < 1000; j++) {
+			hdmi_write_dip_byte(codec, pin_nid, 0x0);
+			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
+			if (pi != i)
+				codec_dbg(codec, "dip index %d: %d != %d\n",
+						bi, pi, i);
+			if (bi == 0) /* byte index wrapped around */
+				break;
+		}
+		codec_dbg(codec,
+			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
+			i, size, j);
+	}
+#endif
+}
+
+static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
+{
+	u8 *bytes = (u8 *)hdmi_ai;
+	u8 sum = 0;
+	int i;
+
+	hdmi_ai->checksum = 0;
+
+	for (i = 0; i < sizeof(*hdmi_ai); i++)
+		sum += bytes[i];
+
+	hdmi_ai->checksum = -sum;
+}
+
+static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
+				      hda_nid_t pin_nid,
+				      u8 *dip, int size)
+{
+	int i;
+
+	hdmi_debug_dip_size(codec, pin_nid);
+	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
+
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	for (i = 0; i < size; i++)
+		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
+}
+
+static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
+				    u8 *dip, int size)
+{
+	u8 val;
+	int i;
+
+	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
+							    != AC_DIPXMIT_BEST)
+		return false;
+
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	for (i = 0; i < size; i++) {
+		val = snd_hda_codec_read(codec, pin_nid, 0,
+					 AC_VERB_GET_HDMI_DIP_DATA, 0);
+		if (val != dip[i])
+			return false;
+	}
+
+	return true;
+}
+
+static int hdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
+			    int dev_id, unsigned char *buf, int *eld_size)
+{
+	snd_hda_set_dev_select(codec, nid, dev_id);
+
+	return snd_hdmi_get_eld(codec, nid, buf, eld_size);
+}
+
+static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
+				     hda_nid_t pin_nid, int dev_id,
+				     int ca, int active_channels,
+				     int conn_type)
+{
+	struct hdmi_spec *spec = codec->spec;
+	union audio_infoframe ai;
+
+	memset(&ai, 0, sizeof(ai));
+	if ((conn_type == 0) || /* HDMI */
+		/* Nvidia DisplayPort: Nvidia HW expects same layout as HDMI */
+		(conn_type == 1 && spec->nv_dp_workaround)) {
+		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
+
+		if (conn_type == 0) { /* HDMI */
+			hdmi_ai->type		= 0x84;
+			hdmi_ai->ver		= 0x01;
+			hdmi_ai->len		= 0x0a;
+		} else {/* Nvidia DP */
+			hdmi_ai->type		= 0x84;
+			hdmi_ai->ver		= 0x1b;
+			hdmi_ai->len		= 0x11 << 2;
+		}
+		hdmi_ai->CC02_CT47	= active_channels - 1;
+		hdmi_ai->CA		= ca;
+		hdmi_checksum_audio_infoframe(hdmi_ai);
+	} else if (conn_type == 1) { /* DisplayPort */
+		struct dp_audio_infoframe *dp_ai = &ai.dp;
+
+		dp_ai->type		= 0x84;
+		dp_ai->len		= 0x1b;
+		dp_ai->ver		= 0x11 << 2;
+		dp_ai->CC02_CT47	= active_channels - 1;
+		dp_ai->CA		= ca;
+	} else {
+		codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
+			    pin_nid);
+		return;
+	}
+
+	snd_hda_set_dev_select(codec, pin_nid, dev_id);
+
+	/*
+	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
+	 * sizeof(*dp_ai) to avoid partial match/update problems when
+	 * the user switches between HDMI/DP monitors.
+	 */
+	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
+					sizeof(ai))) {
+		codec_dbg(codec,
+			  "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
+			    pin_nid,
+			    active_channels, ca);
+		hdmi_stop_infoframe_trans(codec, pin_nid);
+		hdmi_fill_audio_infoframe(codec, pin_nid,
+					    ai.bytes, sizeof(ai));
+		hdmi_start_infoframe_trans(codec, pin_nid);
+	}
+}
+
+static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
+				       struct hdmi_spec_per_pin *per_pin,
+				       bool non_pcm)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdac_chmap *chmap = &spec->chmap;
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	int dev_id = per_pin->dev_id;
+	int channels = per_pin->channels;
+	int active_channels;
+	struct hdmi_eld *eld;
+	int ca;
+
+	if (!channels)
+		return;
+
+	snd_hda_set_dev_select(codec, pin_nid, dev_id);
+
+	/* some HW (e.g. HSW+) needs reprogramming the amp at each time */
+	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, pin_nid, 0,
+					    AC_VERB_SET_AMP_GAIN_MUTE,
+					    AMP_OUT_UNMUTE);
+
+	eld = &per_pin->sink_eld;
+
+	ca = snd_hdac_channel_allocation(&codec->core,
+			eld->info.spk_alloc, channels,
+			per_pin->chmap_set, non_pcm, per_pin->chmap);
+
+	active_channels = snd_hdac_get_active_channels(ca);
+
+	chmap->ops.set_channel_count(&codec->core, per_pin->cvt_nid,
+						active_channels);
+
+	/*
+	 * always configure channel mapping, it may have been changed by the
+	 * user in the meantime
+	 */
+	snd_hdac_setup_channel_mapping(&spec->chmap,
+				pin_nid, non_pcm, ca, channels,
+				per_pin->chmap, per_pin->chmap_set);
+
+	spec->ops.pin_setup_infoframe(codec, pin_nid, dev_id,
+				      ca, active_channels, eld->info.conn_type);
+
+	per_pin->non_pcm = non_pcm;
+}
+
+/*
+ * Unsolicited events
+ */
+
+static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
+
+static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid,
+				      int dev_id)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx = pin_id_to_pin_index(codec, nid, dev_id);
+
+	if (pin_idx < 0)
+		return;
+	mutex_lock(&spec->pcm_lock);
+	hdmi_present_sense(get_pin(spec, pin_idx), 1);
+	mutex_unlock(&spec->pcm_lock);
+}
+
+static void jack_callback(struct hda_codec *codec,
+			  struct hda_jack_callback *jack)
+{
+	/* stop polling when notification is enabled */
+	if (codec_has_acomp(codec))
+		return;
+
+	check_presence_and_report(codec, jack->nid, jack->dev_id);
+}
+
+static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res,
+				 struct hda_jack_tbl *jack)
+{
+	jack->jack_dirty = 1;
+
+	codec_dbg(codec,
+		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
+		codec->addr, jack->nid, jack->dev_id, !!(res & AC_UNSOL_RES_IA),
+		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
+
+	check_presence_and_report(codec, jack->nid, jack->dev_id);
+}
+
+static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
+	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
+
+	codec_info(codec,
+		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
+		codec->addr,
+		tag,
+		subtag,
+		cp_state,
+		cp_ready);
+
+	/* TODO */
+	if (cp_state) {
+		;
+	}
+	if (cp_ready) {
+		;
+	}
+}
+
+
+static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
+{
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+	struct hda_jack_tbl *jack;
+
+	if (codec_has_acomp(codec))
+		return;
+
+	if (codec->dp_mst) {
+		int dev_entry =
+			(res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
+
+		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, dev_entry);
+	} else {
+		jack = snd_hda_jack_tbl_get_from_tag(codec, tag, 0);
+	}
+
+	if (!jack) {
+		codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
+		return;
+	}
+
+	if (subtag == 0)
+		hdmi_intrinsic_event(codec, res, jack);
+	else
+		hdmi_non_intrinsic_event(codec, res);
+}
+
+static void haswell_verify_D0(struct hda_codec *codec,
+		hda_nid_t cvt_nid, hda_nid_t nid)
+{
+	int pwr;
+
+	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
+	 * thus pins could only choose converter 0 for use. Make sure the
+	 * converters are in correct power state */
+	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
+		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
+
+	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
+		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
+				    AC_PWRST_D0);
+		msleep(40);
+		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
+		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
+		codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
+	}
+}
+
+/*
+ * Callbacks
+ */
+
+/* HBR should be Non-PCM, 8 channels */
+#define is_hbr_format(format) \
+	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
+
+static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
+			      int dev_id, bool hbr)
+{
+	int pinctl, new_pinctl;
+
+	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
+		snd_hda_set_dev_select(codec, pin_nid, dev_id);
+		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
+					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+
+		if (pinctl < 0)
+			return hbr ? -EINVAL : 0;
+
+		new_pinctl = pinctl & ~AC_PINCTL_EPT;
+		if (hbr)
+			new_pinctl |= AC_PINCTL_EPT_HBR;
+		else
+			new_pinctl |= AC_PINCTL_EPT_NATIVE;
+
+		codec_dbg(codec,
+			  "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
+			    pin_nid,
+			    pinctl == new_pinctl ? "" : "new-",
+			    new_pinctl);
+
+		if (pinctl != new_pinctl)
+			snd_hda_codec_write(codec, pin_nid, 0,
+					    AC_VERB_SET_PIN_WIDGET_CONTROL,
+					    new_pinctl);
+	} else if (hbr)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+			      hda_nid_t pin_nid, int dev_id,
+			      u32 stream_tag, int format)
+{
+	struct hdmi_spec *spec = codec->spec;
+	unsigned int param;
+	int err;
+
+	err = spec->ops.pin_hbr_setup(codec, pin_nid, dev_id,
+				      is_hbr_format(format));
+
+	if (err) {
+		codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
+		return err;
+	}
+
+	if (spec->intel_hsw_fixup) {
+
+		/*
+		 * on recent platforms IEC Coding Type is required for HBR
+		 * support, read current Digital Converter settings and set
+		 * ICT bitfield if needed.
+		 */
+		param = snd_hda_codec_read(codec, cvt_nid, 0,
+					   AC_VERB_GET_DIGI_CONVERT_1, 0);
+
+		param = (param >> 16) & ~(AC_DIG3_ICT);
+
+		/* on recent platforms ICT mode is required for HBR support */
+		if (is_hbr_format(format))
+			param |= 0x1;
+
+		snd_hda_codec_write(codec, cvt_nid, 0,
+				    AC_VERB_SET_DIGI_CONVERT_3, param);
+	}
+
+	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
+	return 0;
+}
+
+/* Try to find an available converter
+ * If pin_idx is less then zero, just try to find an available converter.
+ * Otherwise, try to find an available converter and get the cvt mux index
+ * of the pin.
+ */
+static int hdmi_choose_cvt(struct hda_codec *codec,
+			   int pin_idx, int *cvt_id)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
+	struct hdmi_spec_per_cvt *per_cvt = NULL;
+	int cvt_idx, mux_idx = 0;
+
+	/* pin_idx < 0 means no pin will be bound to the converter */
+	if (pin_idx < 0)
+		per_pin = NULL;
+	else
+		per_pin = get_pin(spec, pin_idx);
+
+	if (per_pin && per_pin->silent_stream) {
+		cvt_idx = cvt_nid_to_cvt_index(codec, per_pin->cvt_nid);
+		if (cvt_id)
+			*cvt_id = cvt_idx;
+		return 0;
+	}
+
+	/* Dynamically assign converter to stream */
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+		per_cvt = get_cvt(spec, cvt_idx);
+
+		/* Must not already be assigned */
+		if (per_cvt->assigned)
+			continue;
+		if (per_pin == NULL)
+			break;
+		/* Must be in pin's mux's list of converters */
+		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
+			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
+				break;
+		/* Not in mux list */
+		if (mux_idx == per_pin->num_mux_nids)
+			continue;
+		break;
+	}
+
+	/* No free converters */
+	if (cvt_idx == spec->num_cvts)
+		return -EBUSY;
+
+	if (per_pin != NULL)
+		per_pin->mux_idx = mux_idx;
+
+	if (cvt_id)
+		*cvt_id = cvt_idx;
+
+	return 0;
+}
+
+/* Assure the pin select the right convetor */
+static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
+			struct hdmi_spec_per_pin *per_pin)
+{
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	int mux_idx, curr;
+
+	mux_idx = per_pin->mux_idx;
+	curr = snd_hda_codec_read(codec, pin_nid, 0,
+					  AC_VERB_GET_CONNECT_SEL, 0);
+	if (curr != mux_idx)
+		snd_hda_codec_write_cache(codec, pin_nid, 0,
+					    AC_VERB_SET_CONNECT_SEL,
+					    mux_idx);
+}
+
+/* get the mux index for the converter of the pins
+ * converter's mux index is the same for all pins on Intel platform
+ */
+static int intel_cvt_id_to_mux_idx(struct hdmi_spec *spec,
+			hda_nid_t cvt_nid)
+{
+	int i;
+
+	for (i = 0; i < spec->num_cvts; i++)
+		if (spec->cvt_nids[i] == cvt_nid)
+			return i;
+	return -EINVAL;
+}
+
+/* Intel HDMI workaround to fix audio routing issue:
+ * For some Intel display codecs, pins share the same connection list.
+ * So a conveter can be selected by multiple pins and playback on any of these
+ * pins will generate sound on the external display, because audio flows from
+ * the same converter to the display pipeline. Also muting one pin may make
+ * other pins have no sound output.
+ * So this function assures that an assigned converter for a pin is not selected
+ * by any other pins.
+ */
+static void intel_not_share_assigned_cvt(struct hda_codec *codec,
+					 hda_nid_t pin_nid,
+					 int dev_id, int mux_idx)
+{
+	struct hdmi_spec *spec = codec->spec;
+	hda_nid_t nid;
+	int cvt_idx, curr;
+	struct hdmi_spec_per_cvt *per_cvt;
+	struct hdmi_spec_per_pin *per_pin;
+	int pin_idx;
+
+	/* configure the pins connections */
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		int dev_id_saved;
+		int dev_num;
+
+		per_pin = get_pin(spec, pin_idx);
+		/*
+		 * pin not connected to monitor
+		 * no need to operate on it
+		 */
+		if (!per_pin->pcm)
+			continue;
+
+		if ((per_pin->pin_nid == pin_nid) &&
+			(per_pin->dev_id == dev_id))
+			continue;
+
+		/*
+		 * if per_pin->dev_id >= dev_num,
+		 * snd_hda_get_dev_select() will fail,
+		 * and the following operation is unpredictable.
+		 * So skip this situation.
+		 */
+		dev_num = snd_hda_get_num_devices(codec, per_pin->pin_nid) + 1;
+		if (per_pin->dev_id >= dev_num)
+			continue;
+
+		nid = per_pin->pin_nid;
+
+		/*
+		 * Calling this function should not impact
+		 * on the device entry selection
+		 * So let's save the dev id for each pin,
+		 * and restore it when return
+		 */
+		dev_id_saved = snd_hda_get_dev_select(codec, nid);
+		snd_hda_set_dev_select(codec, nid, per_pin->dev_id);
+		curr = snd_hda_codec_read(codec, nid, 0,
+					  AC_VERB_GET_CONNECT_SEL, 0);
+		if (curr != mux_idx) {
+			snd_hda_set_dev_select(codec, nid, dev_id_saved);
+			continue;
+		}
+
+
+		/* choose an unassigned converter. The conveters in the
+		 * connection list are in the same order as in the codec.
+		 */
+		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+			per_cvt = get_cvt(spec, cvt_idx);
+			if (!per_cvt->assigned) {
+				codec_dbg(codec,
+					  "choose cvt %d for pin nid %d\n",
+					cvt_idx, nid);
+				snd_hda_codec_write_cache(codec, nid, 0,
+					    AC_VERB_SET_CONNECT_SEL,
+					    cvt_idx);
+				break;
+			}
+		}
+		snd_hda_set_dev_select(codec, nid, dev_id_saved);
+	}
+}
+
+/* A wrapper of intel_not_share_asigned_cvt() */
+static void intel_not_share_assigned_cvt_nid(struct hda_codec *codec,
+			hda_nid_t pin_nid, int dev_id, hda_nid_t cvt_nid)
+{
+	int mux_idx;
+	struct hdmi_spec *spec = codec->spec;
+
+	/* On Intel platform, the mapping of converter nid to
+	 * mux index of the pins are always the same.
+	 * The pin nid may be 0, this means all pins will not
+	 * share the converter.
+	 */
+	mux_idx = intel_cvt_id_to_mux_idx(spec, cvt_nid);
+	if (mux_idx >= 0)
+		intel_not_share_assigned_cvt(codec, pin_nid, dev_id, mux_idx);
+}
+
+/* skeleton caller of pin_cvt_fixup ops */
+static void pin_cvt_fixup(struct hda_codec *codec,
+			  struct hdmi_spec_per_pin *per_pin,
+			  hda_nid_t cvt_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (spec->ops.pin_cvt_fixup)
+		spec->ops.pin_cvt_fixup(codec, per_pin, cvt_nid);
+}
+
+/* called in hdmi_pcm_open when no pin is assigned to the PCM
+ * in dyn_pcm_assign mode.
+ */
+static int hdmi_pcm_open_no_pin(struct hda_pcm_stream *hinfo,
+			 struct hda_codec *codec,
+			 struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int cvt_idx, pcm_idx;
+	struct hdmi_spec_per_cvt *per_cvt = NULL;
+	int err;
+
+	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+	if (pcm_idx < 0)
+		return -EINVAL;
+
+	err = hdmi_choose_cvt(codec, -1, &cvt_idx);
+	if (err)
+		return err;
+
+	per_cvt = get_cvt(spec, cvt_idx);
+	per_cvt->assigned = 1;
+	hinfo->nid = per_cvt->cvt_nid;
+
+	pin_cvt_fixup(codec, NULL, per_cvt->cvt_nid);
+
+	set_bit(pcm_idx, &spec->pcm_in_use);
+	/* todo: setup spdif ctls assign */
+
+	/* Initially set the converter's capabilities */
+	hinfo->channels_min = per_cvt->channels_min;
+	hinfo->channels_max = per_cvt->channels_max;
+	hinfo->rates = per_cvt->rates;
+	hinfo->formats = per_cvt->formats;
+	hinfo->maxbps = per_cvt->maxbps;
+
+	/* Store the updated parameters */
+	runtime->hw.channels_min = hinfo->channels_min;
+	runtime->hw.channels_max = hinfo->channels_max;
+	runtime->hw.formats = hinfo->formats;
+	runtime->hw.rates = hinfo->rates;
+
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+	return 0;
+}
+
+/*
+ * HDA PCM callbacks
+ */
+static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
+			 struct hda_codec *codec,
+			 struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int pin_idx, cvt_idx, pcm_idx;
+	struct hdmi_spec_per_pin *per_pin;
+	struct hdmi_eld *eld;
+	struct hdmi_spec_per_cvt *per_cvt = NULL;
+	int err;
+
+	/* Validate hinfo */
+	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+	if (pcm_idx < 0)
+		return -EINVAL;
+
+	mutex_lock(&spec->pcm_lock);
+	pin_idx = hinfo_to_pin_index(codec, hinfo);
+	if (!spec->dyn_pcm_assign) {
+		if (snd_BUG_ON(pin_idx < 0)) {
+			err = -EINVAL;
+			goto unlock;
+		}
+	} else {
+		/* no pin is assigned to the PCM
+		 * PA need pcm open successfully when probe
+		 */
+		if (pin_idx < 0) {
+			err = hdmi_pcm_open_no_pin(hinfo, codec, substream);
+			goto unlock;
+		}
+	}
+
+	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx);
+	if (err < 0)
+		goto unlock;
+
+	per_cvt = get_cvt(spec, cvt_idx);
+	/* Claim converter */
+	per_cvt->assigned = 1;
+
+	set_bit(pcm_idx, &spec->pcm_in_use);
+	per_pin = get_pin(spec, pin_idx);
+	per_pin->cvt_nid = per_cvt->cvt_nid;
+	per_pin->silent_stream = false;
+	hinfo->nid = per_cvt->cvt_nid;
+
+	/* flip stripe flag for the assigned stream if supported */
+	if (get_wcaps(codec, per_cvt->cvt_nid) & AC_WCAP_STRIPE)
+		azx_stream(get_azx_dev(substream))->stripe = 1;
+
+	snd_hda_set_dev_select(codec, per_pin->pin_nid, per_pin->dev_id);
+	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
+			    AC_VERB_SET_CONNECT_SEL,
+			    per_pin->mux_idx);
+
+	/* configure unused pins to choose other converters */
+	pin_cvt_fixup(codec, per_pin, 0);
+
+	snd_hda_spdif_ctls_assign(codec, pcm_idx, per_cvt->cvt_nid);
+
+	/* Initially set the converter's capabilities */
+	hinfo->channels_min = per_cvt->channels_min;
+	hinfo->channels_max = per_cvt->channels_max;
+	hinfo->rates = per_cvt->rates;
+	hinfo->formats = per_cvt->formats;
+	hinfo->maxbps = per_cvt->maxbps;
+
+	eld = &per_pin->sink_eld;
+	/* Restrict capabilities by ELD if this isn't disabled */
+	if (!static_hdmi_pcm && eld->eld_valid) {
+		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
+		if (hinfo->channels_min > hinfo->channels_max ||
+		    !hinfo->rates || !hinfo->formats) {
+			per_cvt->assigned = 0;
+			hinfo->nid = 0;
+			snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+			err = -ENODEV;
+			goto unlock;
+		}
+	}
+
+	/* Store the updated parameters */
+	runtime->hw.channels_min = hinfo->channels_min;
+	runtime->hw.channels_max = hinfo->channels_max;
+	runtime->hw.formats = hinfo->formats;
+	runtime->hw.rates = hinfo->rates;
+
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+ unlock:
+	mutex_unlock(&spec->pcm_lock);
+	return err;
+}
+
+/*
+ * HDA/HDMI auto parsing
+ */
+static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	int dev_id = per_pin->dev_id;
+	int conns;
+
+	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
+		codec_warn(codec,
+			   "HDMI: pin %d wcaps %#x does not support connection list\n",
+			   pin_nid, get_wcaps(codec, pin_nid));
+		return -EINVAL;
+	}
+
+	snd_hda_set_dev_select(codec, pin_nid, dev_id);
+
+	if (spec->intel_hsw_fixup) {
+		conns = spec->num_cvts;
+		memcpy(per_pin->mux_nids, spec->cvt_nids,
+		       sizeof(hda_nid_t) * conns);
+	} else {
+		conns = snd_hda_get_raw_connections(codec, pin_nid,
+						    per_pin->mux_nids,
+						    HDA_MAX_CONNECTIONS);
+	}
+
+	/* all the device entries on the same pin have the same conn list */
+	per_pin->num_mux_nids = conns;
+
+	return 0;
+}
+
+static int hdmi_find_pcm_slot(struct hdmi_spec *spec,
+			      struct hdmi_spec_per_pin *per_pin)
+{
+	int i;
+
+	/* on the new machines, try to assign the pcm slot dynamically,
+	 * not use the preferred fixed map (legacy way) anymore.
+	 */
+	if (spec->dyn_pcm_no_legacy)
+		goto last_try;
+
+	/*
+	 * generic_hdmi_build_pcms() may allocate extra PCMs on some
+	 * platforms (with maximum of 'num_nids + dev_num - 1')
+	 *
+	 * The per_pin of pin_nid_idx=n and dev_id=m prefers to get pcm-n
+	 * if m==0. This guarantees that dynamic pcm assignments are compatible
+	 * with the legacy static per_pin-pcm assignment that existed in the
+	 * days before DP-MST.
+	 *
+	 * Intel DP-MST prefers this legacy behavior for compatibility, too.
+	 *
+	 * per_pin of m!=0 prefers to get pcm=(num_nids + (m - 1)).
+	 */
+
+	if (per_pin->dev_id == 0 || spec->intel_hsw_fixup) {
+		if (!test_bit(per_pin->pin_nid_idx, &spec->pcm_bitmap))
+			return per_pin->pin_nid_idx;
+	} else {
+		i = spec->num_nids + (per_pin->dev_id - 1);
+		if (i < spec->pcm_used && !(test_bit(i, &spec->pcm_bitmap)))
+			return i;
+	}
+
+	/* have a second try; check the area over num_nids */
+	for (i = spec->num_nids; i < spec->pcm_used; i++) {
+		if (!test_bit(i, &spec->pcm_bitmap))
+			return i;
+	}
+
+ last_try:
+	/* the last try; check the empty slots in pins */
+	for (i = 0; i < spec->pcm_used; i++) {
+		if (!test_bit(i, &spec->pcm_bitmap))
+			return i;
+	}
+	return -EBUSY;
+}
+
+static void hdmi_attach_hda_pcm(struct hdmi_spec *spec,
+				struct hdmi_spec_per_pin *per_pin)
+{
+	int idx;
+
+	/* pcm already be attached to the pin */
+	if (per_pin->pcm)
+		return;
+	idx = hdmi_find_pcm_slot(spec, per_pin);
+	if (idx == -EBUSY)
+		return;
+	per_pin->pcm_idx = idx;
+	per_pin->pcm = get_hdmi_pcm(spec, idx);
+	set_bit(idx, &spec->pcm_bitmap);
+}
+
+static void hdmi_detach_hda_pcm(struct hdmi_spec *spec,
+				struct hdmi_spec_per_pin *per_pin)
+{
+	int idx;
+
+	/* pcm already be detached from the pin */
+	if (!per_pin->pcm)
+		return;
+	idx = per_pin->pcm_idx;
+	per_pin->pcm_idx = -1;
+	per_pin->pcm = NULL;
+	if (idx >= 0 && idx < spec->pcm_used)
+		clear_bit(idx, &spec->pcm_bitmap);
+}
+
+static int hdmi_get_pin_cvt_mux(struct hdmi_spec *spec,
+		struct hdmi_spec_per_pin *per_pin, hda_nid_t cvt_nid)
+{
+	int mux_idx;
+
+	for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
+		if (per_pin->mux_nids[mux_idx] == cvt_nid)
+			break;
+	return mux_idx;
+}
+
+static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid);
+
+static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
+			   struct hdmi_spec_per_pin *per_pin)
+{
+	struct hda_codec *codec = per_pin->codec;
+	struct hda_pcm *pcm;
+	struct hda_pcm_stream *hinfo;
+	struct snd_pcm_substream *substream;
+	int mux_idx;
+	bool non_pcm;
+
+	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
+		pcm = get_pcm_rec(spec, per_pin->pcm_idx);
+	else
+		return;
+	if (!pcm->pcm)
+		return;
+	if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
+		return;
+
+	/* hdmi audio only uses playback and one substream */
+	hinfo = pcm->stream;
+	substream = pcm->pcm->streams[0].substream;
+
+	per_pin->cvt_nid = hinfo->nid;
+
+	mux_idx = hdmi_get_pin_cvt_mux(spec, per_pin, hinfo->nid);
+	if (mux_idx < per_pin->num_mux_nids) {
+		snd_hda_set_dev_select(codec, per_pin->pin_nid,
+				   per_pin->dev_id);
+		snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
+				AC_VERB_SET_CONNECT_SEL,
+				mux_idx);
+	}
+	snd_hda_spdif_ctls_assign(codec, per_pin->pcm_idx, hinfo->nid);
+
+	non_pcm = check_non_pcm_per_cvt(codec, hinfo->nid);
+	if (substream->runtime)
+		per_pin->channels = substream->runtime->channels;
+	per_pin->setup = true;
+	per_pin->mux_idx = mux_idx;
+
+	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
+}
+
+static void hdmi_pcm_reset_pin(struct hdmi_spec *spec,
+			   struct hdmi_spec_per_pin *per_pin)
+{
+	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
+		snd_hda_spdif_ctls_unassign(per_pin->codec, per_pin->pcm_idx);
+
+	per_pin->chmap_set = false;
+	memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
+
+	per_pin->setup = false;
+	per_pin->channels = 0;
+}
+
+static struct snd_jack *pin_idx_to_pcm_jack(struct hda_codec *codec,
+					    struct hdmi_spec_per_pin *per_pin)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (per_pin->pcm_idx >= 0)
+		return spec->pcm_rec[per_pin->pcm_idx].jack;
+	else
+		return NULL;
+}
+
+/* update per_pin ELD from the given new ELD;
+ * setup info frame and notification accordingly
+ * also notify ELD kctl and report jack status changes
+ */
+static void update_eld(struct hda_codec *codec,
+		       struct hdmi_spec_per_pin *per_pin,
+		       struct hdmi_eld *eld,
+		       int repoll)
+{
+	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
+	struct hdmi_spec *spec = codec->spec;
+	struct snd_jack *pcm_jack;
+	bool old_eld_valid = pin_eld->eld_valid;
+	bool eld_changed;
+	int pcm_idx;
+
+	if (eld->eld_valid) {
+		if (eld->eld_size <= 0 ||
+		    snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
+				       eld->eld_size) < 0) {
+			eld->eld_valid = false;
+			if (repoll) {
+				schedule_delayed_work(&per_pin->work,
+						      msecs_to_jiffies(300));
+				return;
+			}
+		}
+	}
+
+	if (!eld->eld_valid || eld->eld_size <= 0) {
+		eld->eld_valid = false;
+		eld->eld_size = 0;
+	}
+
+	/* for monitor disconnection, save pcm_idx firstly */
+	pcm_idx = per_pin->pcm_idx;
+
+	/*
+	 * pcm_idx >=0 before update_eld() means it is in monitor
+	 * disconnected event. Jack must be fetched before update_eld().
+	 */
+	pcm_jack = pin_idx_to_pcm_jack(codec, per_pin);
+
+	if (spec->dyn_pcm_assign) {
+		if (eld->eld_valid) {
+			hdmi_attach_hda_pcm(spec, per_pin);
+			hdmi_pcm_setup_pin(spec, per_pin);
+		} else {
+			hdmi_pcm_reset_pin(spec, per_pin);
+			hdmi_detach_hda_pcm(spec, per_pin);
+		}
+	}
+	/* if pcm_idx == -1, it means this is in monitor connection event
+	 * we can get the correct pcm_idx now.
+	 */
+	if (pcm_idx == -1)
+		pcm_idx = per_pin->pcm_idx;
+	if (!pcm_jack)
+		pcm_jack = pin_idx_to_pcm_jack(codec, per_pin);
+
+	if (eld->eld_valid)
+		snd_hdmi_show_eld(codec, &eld->info);
+
+	eld_changed = (pin_eld->eld_valid != eld->eld_valid);
+	eld_changed |= (pin_eld->monitor_present != eld->monitor_present);
+	if (!eld_changed && eld->eld_valid && pin_eld->eld_valid)
+		if (pin_eld->eld_size != eld->eld_size ||
+		    memcmp(pin_eld->eld_buffer, eld->eld_buffer,
+			   eld->eld_size) != 0)
+			eld_changed = true;
+
+	if (eld_changed) {
+		pin_eld->monitor_present = eld->monitor_present;
+		pin_eld->eld_valid = eld->eld_valid;
+		pin_eld->eld_size = eld->eld_size;
+		if (eld->eld_valid)
+			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
+			       eld->eld_size);
+		pin_eld->info = eld->info;
+	}
+
+	/*
+	 * Re-setup pin and infoframe. This is needed e.g. when
+	 * - sink is first plugged-in
+	 * - transcoder can change during stream playback on Haswell
+	 *   and this can make HW reset converter selection on a pin.
+	 */
+	if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
+		pin_cvt_fixup(codec, per_pin, 0);
+		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+	}
+
+	if (eld_changed && pcm_idx >= 0)
+		snd_ctl_notify(codec->card,
+			       SNDRV_CTL_EVENT_MASK_VALUE |
+			       SNDRV_CTL_EVENT_MASK_INFO,
+			       &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
+
+	if (eld_changed && pcm_jack)
+		snd_jack_report(pcm_jack,
+				(eld->monitor_present && eld->eld_valid) ?
+				SND_JACK_AVOUT : 0);
+}
+
+/* update ELD and jack state via HD-audio verbs */
+static void hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
+					 int repoll)
+{
+	struct hda_codec *codec = per_pin->codec;
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_eld *eld = &spec->temp_eld;
+	struct device *dev = hda_codec_dev(codec);
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	int dev_id = per_pin->dev_id;
+	/*
+	 * Always execute a GetPinSense verb here, even when called from
+	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
+	 * response's PD bit is not the real PD value, but indicates that
+	 * the real PD value changed. An older version of the HD-audio
+	 * specification worked this way. Hence, we just ignore the data in
+	 * the unsolicited response to avoid custom WARs.
+	 */
+	int present;
+	int ret;
+
+#ifdef	CONFIG_PM
+	if (dev->power.runtime_status == RPM_SUSPENDING)
+		return;
+#endif
+
+	ret = snd_hda_power_up_pm(codec);
+	if (ret < 0 && pm_runtime_suspended(dev))
+		goto out;
+
+	present = snd_hda_jack_pin_sense(codec, pin_nid, dev_id);
+
+	mutex_lock(&per_pin->lock);
+	eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
+	if (eld->monitor_present)
+		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
+	else
+		eld->eld_valid = false;
+
+	codec_dbg(codec,
+		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
+		codec->addr, pin_nid, eld->monitor_present, eld->eld_valid);
+
+	if (eld->eld_valid) {
+		if (spec->ops.pin_get_eld(codec, pin_nid, dev_id,
+					  eld->eld_buffer, &eld->eld_size) < 0)
+			eld->eld_valid = false;
+	}
+
+	update_eld(codec, per_pin, eld, repoll);
+	mutex_unlock(&per_pin->lock);
+ out:
+	snd_hda_power_down_pm(codec);
+}
+
+#define I915_SILENT_RATE		48000
+#define I915_SILENT_CHANNELS		2
+#define I915_SILENT_FORMAT		SNDRV_PCM_FORMAT_S16_LE
+#define I915_SILENT_FORMAT_BITS	16
+#define I915_SILENT_FMT_MASK		0xf
+
+static void silent_stream_enable(struct hda_codec *codec,
+				 struct hdmi_spec_per_pin *per_pin)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	int cvt_idx, pin_idx, err;
+	unsigned int format;
+
+	mutex_lock(&per_pin->lock);
+
+	if (per_pin->setup) {
+		codec_dbg(codec, "hdmi: PCM already open, no silent stream\n");
+		goto unlock_out;
+	}
+
+	pin_idx = pin_id_to_pin_index(codec, per_pin->pin_nid, per_pin->dev_id);
+	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx);
+	if (err) {
+		codec_err(codec, "hdmi: no free converter to enable silent mode\n");
+		goto unlock_out;
+	}
+
+	per_cvt = get_cvt(spec, cvt_idx);
+	per_cvt->assigned = 1;
+	per_pin->cvt_nid = per_cvt->cvt_nid;
+	per_pin->silent_stream = true;
+
+	codec_dbg(codec, "hdmi: enabling silent stream pin-NID=0x%x cvt-NID=0x%x\n",
+		  per_pin->pin_nid, per_cvt->cvt_nid);
+
+	snd_hda_set_dev_select(codec, per_pin->pin_nid, per_pin->dev_id);
+	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
+				  AC_VERB_SET_CONNECT_SEL,
+				  per_pin->mux_idx);
+
+	/* configure unused pins to choose other converters */
+	pin_cvt_fixup(codec, per_pin, 0);
+
+	snd_hdac_sync_audio_rate(&codec->core, per_pin->pin_nid,
+				 per_pin->dev_id, I915_SILENT_RATE);
+
+	/* trigger silent stream generation in hw */
+	format = snd_hdac_calc_stream_format(I915_SILENT_RATE, I915_SILENT_CHANNELS,
+					     I915_SILENT_FORMAT, I915_SILENT_FORMAT_BITS, 0);
+	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid,
+				   I915_SILENT_FMT_MASK, I915_SILENT_FMT_MASK, format);
+	usleep_range(100, 200);
+	snd_hda_codec_setup_stream(codec, per_pin->cvt_nid, I915_SILENT_FMT_MASK, 0, format);
+
+	per_pin->channels = I915_SILENT_CHANNELS;
+	hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+
+ unlock_out:
+	mutex_unlock(&per_pin->lock);
+}
+
+static void silent_stream_disable(struct hda_codec *codec,
+				  struct hdmi_spec_per_pin *per_pin)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	int cvt_idx;
+
+	mutex_lock(&per_pin->lock);
+	if (!per_pin->silent_stream)
+		goto unlock_out;
+
+	codec_dbg(codec, "HDMI: disable silent stream on pin-NID=0x%x cvt-NID=0x%x\n",
+		  per_pin->pin_nid, per_pin->cvt_nid);
+
+	cvt_idx = cvt_nid_to_cvt_index(codec, per_pin->cvt_nid);
+	if (cvt_idx >= 0 && cvt_idx < spec->num_cvts) {
+		per_cvt = get_cvt(spec, cvt_idx);
+		per_cvt->assigned = 0;
+	}
+
+	per_pin->cvt_nid = 0;
+	per_pin->silent_stream = false;
+
+ unlock_out:
+	mutex_unlock(&per_pin->lock);
+}
+
+/* update ELD and jack state via audio component */
+static void sync_eld_via_acomp(struct hda_codec *codec,
+			       struct hdmi_spec_per_pin *per_pin)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_eld *eld = &spec->temp_eld;
+	bool monitor_prev, monitor_next;
+
+	mutex_lock(&per_pin->lock);
+	eld->monitor_present = false;
+	monitor_prev = per_pin->sink_eld.monitor_present;
+	eld->eld_size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid,
+				      per_pin->dev_id, &eld->monitor_present,
+				      eld->eld_buffer, ELD_MAX_SIZE);
+	eld->eld_valid = (eld->eld_size > 0);
+	update_eld(codec, per_pin, eld, 0);
+	monitor_next = per_pin->sink_eld.monitor_present;
+	mutex_unlock(&per_pin->lock);
+
+	/*
+	 * Power-up will call hdmi_present_sense, so the PM calls
+	 * have to be done without mutex held.
+	 */
+
+	if (spec->send_silent_stream) {
+		int pm_ret;
+
+		if (!monitor_prev && monitor_next) {
+			pm_ret = snd_hda_power_up_pm(codec);
+			if (pm_ret < 0)
+				codec_err(codec,
+				"Monitor plugged-in, Failed to power up codec ret=[%d]\n",
+				pm_ret);
+			silent_stream_enable(codec, per_pin);
+		} else if (monitor_prev && !monitor_next) {
+			silent_stream_disable(codec, per_pin);
+			pm_ret = snd_hda_power_down_pm(codec);
+			if (pm_ret < 0)
+				codec_err(codec,
+				"Monitor plugged-out, Failed to power down codec ret=[%d]\n",
+				pm_ret);
+		}
+	}
+}
+
+static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
+{
+	struct hda_codec *codec = per_pin->codec;
+
+	if (!codec_has_acomp(codec))
+		hdmi_present_sense_via_verbs(per_pin, repoll);
+	else
+		sync_eld_via_acomp(codec, per_pin);
+}
+
+static void hdmi_repoll_eld(struct work_struct *work)
+{
+	struct hdmi_spec_per_pin *per_pin =
+	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
+	struct hda_codec *codec = per_pin->codec;
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_jack_tbl *jack;
+
+	jack = snd_hda_jack_tbl_get_mst(codec, per_pin->pin_nid,
+					per_pin->dev_id);
+	if (jack)
+		jack->jack_dirty = 1;
+
+	if (per_pin->repoll_count++ > 6)
+		per_pin->repoll_count = 0;
+
+	mutex_lock(&spec->pcm_lock);
+	hdmi_present_sense(per_pin, per_pin->repoll_count);
+	mutex_unlock(&spec->pcm_lock);
+}
+
+static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	unsigned int caps, config;
+	int pin_idx;
+	struct hdmi_spec_per_pin *per_pin;
+	int err;
+	int dev_num, i;
+
+	caps = snd_hda_query_pin_caps(codec, pin_nid);
+	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
+		return 0;
+
+	/*
+	 * For DP MST audio, Configuration Default is the same for
+	 * all device entries on the same pin
+	 */
+	config = snd_hda_codec_get_pincfg(codec, pin_nid);
+	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE &&
+	    !spec->force_connect)
+		return 0;
+
+	/*
+	 * To simplify the implementation, malloc all
+	 * the virtual pins in the initialization statically
+	 */
+	if (spec->intel_hsw_fixup) {
+		/*
+		 * On Intel platforms, device entries number is
+		 * changed dynamically. If there is a DP MST
+		 * hub connected, the device entries number is 3.
+		 * Otherwise, it is 1.
+		 * Here we manually set dev_num to 3, so that
+		 * we can initialize all the device entries when
+		 * bootup statically.
+		 */
+		dev_num = 3;
+		spec->dev_num = 3;
+	} else if (spec->dyn_pcm_assign && codec->dp_mst) {
+		dev_num = snd_hda_get_num_devices(codec, pin_nid) + 1;
+		/*
+		 * spec->dev_num is the maxinum number of device entries
+		 * among all the pins
+		 */
+		spec->dev_num = (spec->dev_num > dev_num) ?
+			spec->dev_num : dev_num;
+	} else {
+		/*
+		 * If the platform doesn't support DP MST,
+		 * manually set dev_num to 1. This means
+		 * the pin has only one device entry.
+		 */
+		dev_num = 1;
+		spec->dev_num = 1;
+	}
+
+	for (i = 0; i < dev_num; i++) {
+		pin_idx = spec->num_pins;
+		per_pin = snd_array_new(&spec->pins);
+
+		if (!per_pin)
+			return -ENOMEM;
+
+		if (spec->dyn_pcm_assign) {
+			per_pin->pcm = NULL;
+			per_pin->pcm_idx = -1;
+		} else {
+			per_pin->pcm = get_hdmi_pcm(spec, pin_idx);
+			per_pin->pcm_idx = pin_idx;
+		}
+		per_pin->pin_nid = pin_nid;
+		per_pin->pin_nid_idx = spec->num_nids;
+		per_pin->dev_id = i;
+		per_pin->non_pcm = false;
+		snd_hda_set_dev_select(codec, pin_nid, i);
+		err = hdmi_read_pin_conn(codec, pin_idx);
+		if (err < 0)
+			return err;
+		spec->num_pins++;
+	}
+	spec->num_nids++;
+
+	return 0;
+}
+
+static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	unsigned int chans;
+	int err;
+
+	chans = get_wcaps(codec, cvt_nid);
+	chans = get_wcaps_channels(chans);
+
+	per_cvt = snd_array_new(&spec->cvts);
+	if (!per_cvt)
+		return -ENOMEM;
+
+	per_cvt->cvt_nid = cvt_nid;
+	per_cvt->channels_min = 2;
+	if (chans <= 16) {
+		per_cvt->channels_max = chans;
+		if (chans > spec->chmap.channels_max)
+			spec->chmap.channels_max = chans;
+	}
+
+	err = snd_hda_query_supported_pcm(codec, cvt_nid,
+					  &per_cvt->rates,
+					  &per_cvt->formats,
+					  &per_cvt->maxbps);
+	if (err < 0)
+		return err;
+
+	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
+		spec->cvt_nids[spec->num_cvts] = cvt_nid;
+	spec->num_cvts++;
+
+	return 0;
+}
+
+static const struct snd_pci_quirk force_connect_list[] = {
+	SND_PCI_QUIRK(0x103c, 0x870f, "HP", 1),
+	SND_PCI_QUIRK(0x103c, 0x871a, "HP", 1),
+	SND_PCI_QUIRK(0x103c, 0x8711, "HP", 1),
+	SND_PCI_QUIRK(0x103c, 0x8715, "HP", 1),
+	SND_PCI_QUIRK(0x1043, 0x86ae, "ASUS", 1),  /* Z170 PRO */
+	SND_PCI_QUIRK(0x1043, 0x86c7, "ASUS", 1),  /* Z170M PLUS */
+	SND_PCI_QUIRK(0x1462, 0xec94, "MS-7C94", 1),
+	SND_PCI_QUIRK(0x8086, 0x2060, "Intel NUC5CPYB", 1),
+	SND_PCI_QUIRK(0x8086, 0x2081, "Intel NUC 10", 1),
+	{}
+};
+
+static int hdmi_parse_codec(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	hda_nid_t start_nid;
+	unsigned int caps;
+	int i, nodes;
+	const struct snd_pci_quirk *q;
+
+	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &start_nid);
+	if (!start_nid || nodes < 0) {
+		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
+		return -EINVAL;
+	}
+
+	q = snd_pci_quirk_lookup(codec->bus->pci, force_connect_list);
+
+	if (q && q->value)
+		spec->force_connect = true;
+
+	/*
+	 * hdmi_add_pin() assumes total amount of converters to
+	 * be known, so first discover all converters
+	 */
+	for (i = 0; i < nodes; i++) {
+		hda_nid_t nid = start_nid + i;
+
+		caps = get_wcaps(codec, nid);
+
+		if (!(caps & AC_WCAP_DIGITAL))
+			continue;
+
+		if (get_wcaps_type(caps) == AC_WID_AUD_OUT)
+			hdmi_add_cvt(codec, nid);
+	}
+
+	/* discover audio pins */
+	for (i = 0; i < nodes; i++) {
+		hda_nid_t nid = start_nid + i;
+
+		caps = get_wcaps(codec, nid);
+
+		if (!(caps & AC_WCAP_DIGITAL))
+			continue;
+
+		if (get_wcaps_type(caps) == AC_WID_PIN)
+			hdmi_add_pin(codec, nid);
+	}
+
+	return 0;
+}
+
+/*
+ */
+static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
+{
+	struct hda_spdif_out *spdif;
+	bool non_pcm;
+
+	mutex_lock(&codec->spdif_mutex);
+	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
+	/* Add sanity check to pass klockwork check.
+	 * This should never happen.
+	 */
+	if (WARN_ON(spdif == NULL)) {
+		mutex_unlock(&codec->spdif_mutex);
+		return true;
+	}
+	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
+	mutex_unlock(&codec->spdif_mutex);
+	return non_pcm;
+}
+
+/*
+ * HDMI callbacks
+ */
+
+static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+					   struct hda_codec *codec,
+					   unsigned int stream_tag,
+					   unsigned int format,
+					   struct snd_pcm_substream *substream)
+{
+	hda_nid_t cvt_nid = hinfo->nid;
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+	struct hdmi_spec_per_pin *per_pin;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	bool non_pcm;
+	int pinctl, stripe;
+	int err = 0;
+
+	mutex_lock(&spec->pcm_lock);
+	pin_idx = hinfo_to_pin_index(codec, hinfo);
+	if (spec->dyn_pcm_assign && pin_idx < 0) {
+		/* when dyn_pcm_assign and pcm is not bound to a pin
+		 * skip pin setup and return 0 to make audio playback
+		 * be ongoing
+		 */
+		pin_cvt_fixup(codec, NULL, cvt_nid);
+		snd_hda_codec_setup_stream(codec, cvt_nid,
+					stream_tag, 0, format);
+		goto unlock;
+	}
+
+	if (snd_BUG_ON(pin_idx < 0)) {
+		err = -EINVAL;
+		goto unlock;
+	}
+	per_pin = get_pin(spec, pin_idx);
+
+	/* Verify pin:cvt selections to avoid silent audio after S3.
+	 * After S3, the audio driver restores pin:cvt selections
+	 * but this can happen before gfx is ready and such selection
+	 * is overlooked by HW. Thus multiple pins can share a same
+	 * default convertor and mute control will affect each other,
+	 * which can cause a resumed audio playback become silent
+	 * after S3.
+	 */
+	pin_cvt_fixup(codec, per_pin, 0);
+
+	/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
+	/* Todo: add DP1.2 MST audio support later */
+	if (codec_has_acomp(codec))
+		snd_hdac_sync_audio_rate(&codec->core, per_pin->pin_nid,
+					 per_pin->dev_id, runtime->rate);
+
+	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
+	mutex_lock(&per_pin->lock);
+	per_pin->channels = substream->runtime->channels;
+	per_pin->setup = true;
+
+	if (get_wcaps(codec, cvt_nid) & AC_WCAP_STRIPE) {
+		stripe = snd_hdac_get_stream_stripe_ctl(&codec->bus->core,
+							substream);
+		snd_hda_codec_write(codec, cvt_nid, 0,
+				    AC_VERB_SET_STRIPE_CONTROL,
+				    stripe);
+	}
+
+	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
+	mutex_unlock(&per_pin->lock);
+	if (spec->dyn_pin_out) {
+		snd_hda_set_dev_select(codec, per_pin->pin_nid,
+				       per_pin->dev_id);
+		pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
+					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+		snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+				    AC_VERB_SET_PIN_WIDGET_CONTROL,
+				    pinctl | PIN_OUT);
+	}
+
+	/* snd_hda_set_dev_select() has been called before */
+	err = spec->ops.setup_stream(codec, cvt_nid, per_pin->pin_nid,
+				     per_pin->dev_id, stream_tag, format);
+ unlock:
+	mutex_unlock(&spec->pcm_lock);
+	return err;
+}
+
+static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
+					     struct hda_codec *codec,
+					     struct snd_pcm_substream *substream)
+{
+	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
+	return 0;
+}
+
+static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
+			  struct hda_codec *codec,
+			  struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int cvt_idx, pin_idx, pcm_idx;
+	struct hdmi_spec_per_cvt *per_cvt;
+	struct hdmi_spec_per_pin *per_pin;
+	int pinctl;
+	int err = 0;
+
+	mutex_lock(&spec->pcm_lock);
+	if (hinfo->nid) {
+		pcm_idx = hinfo_to_pcm_index(codec, hinfo);
+		if (snd_BUG_ON(pcm_idx < 0)) {
+			err = -EINVAL;
+			goto unlock;
+		}
+		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
+		if (snd_BUG_ON(cvt_idx < 0)) {
+			err = -EINVAL;
+			goto unlock;
+		}
+		per_cvt = get_cvt(spec, cvt_idx);
+		per_cvt->assigned = 0;
+		hinfo->nid = 0;
+
+		azx_stream(get_azx_dev(substream))->stripe = 0;
+
+		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+		clear_bit(pcm_idx, &spec->pcm_in_use);
+		pin_idx = hinfo_to_pin_index(codec, hinfo);
+		if (spec->dyn_pcm_assign && pin_idx < 0)
+			goto unlock;
+
+		if (snd_BUG_ON(pin_idx < 0)) {
+			err = -EINVAL;
+			goto unlock;
+		}
+		per_pin = get_pin(spec, pin_idx);
+
+		if (spec->dyn_pin_out) {
+			snd_hda_set_dev_select(codec, per_pin->pin_nid,
+					       per_pin->dev_id);
+			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
+					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+					    AC_VERB_SET_PIN_WIDGET_CONTROL,
+					    pinctl & ~PIN_OUT);
+		}
+
+		mutex_lock(&per_pin->lock);
+		per_pin->chmap_set = false;
+		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
+
+		per_pin->setup = false;
+		per_pin->channels = 0;
+		mutex_unlock(&per_pin->lock);
+	}
+
+unlock:
+	mutex_unlock(&spec->pcm_lock);
+
+	return err;
+}
+
+static const struct hda_pcm_ops generic_ops = {
+	.open = hdmi_pcm_open,
+	.close = hdmi_pcm_close,
+	.prepare = generic_hdmi_playback_pcm_prepare,
+	.cleanup = generic_hdmi_playback_pcm_cleanup,
+};
+
+static int hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
+
+	if (!per_pin)
+		return 0;
+
+	return per_pin->sink_eld.info.spk_alloc;
+}
+
+static void hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
+					unsigned char *chmap)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
+
+	/* chmap is already set to 0 in caller */
+	if (!per_pin)
+		return;
+
+	memcpy(chmap, per_pin->chmap, ARRAY_SIZE(per_pin->chmap));
+}
+
+static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
+				unsigned char *chmap, int prepared)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
+
+	if (!per_pin)
+		return;
+	mutex_lock(&per_pin->lock);
+	per_pin->chmap_set = true;
+	memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));
+	if (prepared)
+		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+	mutex_unlock(&per_pin->lock);
+}
+
+static bool is_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
+
+	return per_pin ? true:false;
+}
+
+static int generic_hdmi_build_pcms(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int idx, pcm_num;
+
+	/*
+	 * for non-mst mode, pcm number is the same as before
+	 * for DP MST mode without extra PCM, pcm number is same
+	 * for DP MST mode with extra PCMs, pcm number is
+	 *  (nid number + dev_num - 1)
+	 * dev_num is the device entry number in a pin
+	 */
+
+	if (spec->dyn_pcm_no_legacy && codec->mst_no_extra_pcms)
+		pcm_num = spec->num_cvts;
+	else if (codec->mst_no_extra_pcms)
+		pcm_num = spec->num_nids;
+	else
+		pcm_num = spec->num_nids + spec->dev_num - 1;
+
+	codec_dbg(codec, "hdmi: pcm_num set to %d\n", pcm_num);
+
+	for (idx = 0; idx < pcm_num; idx++) {
+		struct hda_pcm *info;
+		struct hda_pcm_stream *pstr;
+
+		info = snd_hda_codec_pcm_new(codec, "HDMI %d", idx);
+		if (!info)
+			return -ENOMEM;
+
+		spec->pcm_rec[idx].pcm = info;
+		spec->pcm_used++;
+		info->pcm_type = HDA_PCM_TYPE_HDMI;
+		info->own_chmap = true;
+
+		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
+		pstr->substreams = 1;
+		pstr->ops = generic_ops;
+		/* pcm number is less than 16 */
+		if (spec->pcm_used >= 16)
+			break;
+		/* other pstr fields are set in open */
+	}
+
+	return 0;
+}
+
+static void free_hdmi_jack_priv(struct snd_jack *jack)
+{
+	struct hdmi_pcm *pcm = jack->private_data;
+
+	pcm->jack = NULL;
+}
+
+static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
+{
+	char hdmi_str[32] = "HDMI/DP";
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pcm_idx);
+	struct snd_jack *jack;
+	int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
+	int err;
+
+	if (pcmdev > 0)
+		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
+	if (!spec->dyn_pcm_assign &&
+	    !is_jack_detectable(codec, per_pin->pin_nid))
+		strncat(hdmi_str, " Phantom",
+			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
+
+	err = snd_jack_new(codec->card, hdmi_str, SND_JACK_AVOUT, &jack,
+			   true, false);
+	if (err < 0)
+		return err;
+
+	spec->pcm_rec[pcm_idx].jack = jack;
+	jack->private_data = &spec->pcm_rec[pcm_idx];
+	jack->private_free = free_hdmi_jack_priv;
+	return 0;
+}
+
+static int generic_hdmi_build_controls(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int dev, err;
+	int pin_idx, pcm_idx;
+
+	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
+		if (!get_pcm_rec(spec, pcm_idx)->pcm) {
+			/* no PCM: mark this for skipping permanently */
+			set_bit(pcm_idx, &spec->pcm_bitmap);
+			continue;
+		}
+
+		err = generic_hdmi_build_jack(codec, pcm_idx);
+		if (err < 0)
+			return err;
+
+		/* create the spdif for each pcm
+		 * pin will be bound when monitor is connected
+		 */
+		if (spec->dyn_pcm_assign)
+			err = snd_hda_create_dig_out_ctls(codec,
+					  0, spec->cvt_nids[0],
+					  HDA_PCM_TYPE_HDMI);
+		else {
+			struct hdmi_spec_per_pin *per_pin =
+				get_pin(spec, pcm_idx);
+			err = snd_hda_create_dig_out_ctls(codec,
+						  per_pin->pin_nid,
+						  per_pin->mux_nids[0],
+						  HDA_PCM_TYPE_HDMI);
+		}
+		if (err < 0)
+			return err;
+		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
+
+		dev = get_pcm_rec(spec, pcm_idx)->device;
+		if (dev != SNDRV_PCM_INVALID_DEVICE) {
+			/* add control for ELD Bytes */
+			err = hdmi_create_eld_ctl(codec, pcm_idx, dev);
+			if (err < 0)
+				return err;
+		}
+	}
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+		struct hdmi_eld *pin_eld = &per_pin->sink_eld;
+
+		pin_eld->eld_valid = false;
+		hdmi_present_sense(per_pin, 0);
+	}
+
+	/* add channel maps */
+	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
+		struct hda_pcm *pcm;
+
+		pcm = get_pcm_rec(spec, pcm_idx);
+		if (!pcm || !pcm->pcm)
+			break;
+		err = snd_hdac_add_chmap_ctls(pcm->pcm, pcm_idx, &spec->chmap);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static int generic_hdmi_init_per_pins(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+
+		per_pin->codec = codec;
+		mutex_init(&per_pin->lock);
+		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
+		eld_proc_new(per_pin, pin_idx);
+	}
+	return 0;
+}
+
+static int generic_hdmi_init(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	mutex_lock(&spec->bind_lock);
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+		hda_nid_t pin_nid = per_pin->pin_nid;
+		int dev_id = per_pin->dev_id;
+
+		snd_hda_set_dev_select(codec, pin_nid, dev_id);
+		hdmi_init_pin(codec, pin_nid);
+		if (codec_has_acomp(codec))
+			continue;
+		snd_hda_jack_detect_enable_callback_mst(codec, pin_nid, dev_id,
+							jack_callback);
+	}
+	mutex_unlock(&spec->bind_lock);
+	return 0;
+}
+
+static void hdmi_array_init(struct hdmi_spec *spec, int nums)
+{
+	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
+	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
+}
+
+static void hdmi_array_free(struct hdmi_spec *spec)
+{
+	snd_array_free(&spec->pins);
+	snd_array_free(&spec->cvts);
+}
+
+static void generic_spec_free(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (spec) {
+		hdmi_array_free(spec);
+		kfree(spec);
+		codec->spec = NULL;
+	}
+	codec->dp_mst = false;
+}
+
+static void generic_hdmi_free(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx, pcm_idx;
+
+	if (spec->acomp_registered) {
+		snd_hdac_acomp_exit(&codec->bus->core);
+	} else if (codec_has_acomp(codec)) {
+		snd_hdac_acomp_register_notifier(&codec->bus->core, NULL);
+	}
+	codec->relaxed_resume = 0;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+		cancel_delayed_work_sync(&per_pin->work);
+		eld_proc_free(per_pin);
+	}
+
+	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
+		if (spec->pcm_rec[pcm_idx].jack == NULL)
+			continue;
+		if (spec->dyn_pcm_assign)
+			snd_device_free(codec->card,
+					spec->pcm_rec[pcm_idx].jack);
+		else
+			spec->pcm_rec[pcm_idx].jack = NULL;
+	}
+
+	generic_spec_free(codec);
+}
+
+#ifdef CONFIG_PM
+static int generic_hdmi_suspend(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+		cancel_delayed_work_sync(&per_pin->work);
+	}
+	return 0;
+}
+
+static int generic_hdmi_resume(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	codec->patch_ops.init(codec);
+	snd_hda_regmap_sync(codec);
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+		hdmi_present_sense(per_pin, 1);
+	}
+	return 0;
+}
+#endif
+
+static const struct hda_codec_ops generic_hdmi_patch_ops = {
+	.init			= generic_hdmi_init,
+	.free			= generic_hdmi_free,
+	.build_pcms		= generic_hdmi_build_pcms,
+	.build_controls		= generic_hdmi_build_controls,
+	.unsol_event		= hdmi_unsol_event,
+#ifdef CONFIG_PM
+	.suspend		= generic_hdmi_suspend,
+	.resume			= generic_hdmi_resume,
+#endif
+};
+
+static const struct hdmi_ops generic_standard_hdmi_ops = {
+	.pin_get_eld				= hdmi_pin_get_eld,
+	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
+	.pin_hbr_setup				= hdmi_pin_hbr_setup,
+	.setup_stream				= hdmi_setup_stream,
+};
+
+/* allocate codec->spec and assign/initialize generic parser ops */
+static int alloc_generic_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (!spec)
+		return -ENOMEM;
+
+	spec->codec = codec;
+	spec->ops = generic_standard_hdmi_ops;
+	spec->dev_num = 1;	/* initialize to 1 */
+	mutex_init(&spec->pcm_lock);
+	mutex_init(&spec->bind_lock);
+	snd_hdac_register_chmap_ops(&codec->core, &spec->chmap);
+
+	spec->chmap.ops.get_chmap = hdmi_get_chmap;
+	spec->chmap.ops.set_chmap = hdmi_set_chmap;
+	spec->chmap.ops.is_pcm_attached = is_hdmi_pcm_attached;
+	spec->chmap.ops.get_spk_alloc = hdmi_get_spk_alloc;
+
+	codec->spec = spec;
+	hdmi_array_init(spec, 4);
+
+	codec->patch_ops = generic_hdmi_patch_ops;
+
+	return 0;
+}
+
+/* generic HDMI parser */
+static int patch_generic_hdmi(struct hda_codec *codec)
+{
+	int err;
+
+	err = alloc_generic_hdmi(codec);
+	if (err < 0)
+		return err;
+
+	err = hdmi_parse_codec(codec);
+	if (err < 0) {
+		generic_spec_free(codec);
+		return err;
+	}
+
+	generic_hdmi_init_per_pins(codec);
+	return 0;
+}
+
+/*
+ * generic audio component binding
+ */
+
+/* turn on / off the unsol event jack detection dynamically */
+static void reprogram_jack_detect(struct hda_codec *codec, hda_nid_t nid,
+				  int dev_id, bool use_acomp)
+{
+	struct hda_jack_tbl *tbl;
+
+	tbl = snd_hda_jack_tbl_get_mst(codec, nid, dev_id);
+	if (tbl) {
+		/* clear unsol even if component notifier is used, or re-enable
+		 * if notifier is cleared
+		 */
+		unsigned int val = use_acomp ? 0 : (AC_USRSP_EN | tbl->tag);
+		snd_hda_codec_write_cache(codec, nid, 0,
+					  AC_VERB_SET_UNSOLICITED_ENABLE, val);
+	}
+}
+
+/* set up / clear component notifier dynamically */
+static void generic_acomp_notifier_set(struct drm_audio_component *acomp,
+				       bool use_acomp)
+{
+	struct hdmi_spec *spec;
+	int i;
+
+	spec = container_of(acomp->audio_ops, struct hdmi_spec, drm_audio_ops);
+	mutex_lock(&spec->bind_lock);
+	spec->use_acomp_notifier = use_acomp;
+	spec->codec->relaxed_resume = use_acomp;
+	spec->codec->bus->keep_power = 0;
+	/* reprogram each jack detection logic depending on the notifier */
+	for (i = 0; i < spec->num_pins; i++)
+		reprogram_jack_detect(spec->codec,
+				      get_pin(spec, i)->pin_nid,
+				      get_pin(spec, i)->dev_id,
+				      use_acomp);
+	mutex_unlock(&spec->bind_lock);
+}
+
+/* enable / disable the notifier via master bind / unbind */
+static int generic_acomp_master_bind(struct device *dev,
+				     struct drm_audio_component *acomp)
+{
+	generic_acomp_notifier_set(acomp, true);
+	return 0;
+}
+
+static void generic_acomp_master_unbind(struct device *dev,
+					struct drm_audio_component *acomp)
+{
+	generic_acomp_notifier_set(acomp, false);
+}
+
+/* check whether both HD-audio and DRM PCI devices belong to the same bus */
+static int match_bound_vga(struct device *dev, int subtype, void *data)
+{
+	struct hdac_bus *bus = data;
+	struct pci_dev *pci, *master;
+
+	if (!dev_is_pci(dev) || !dev_is_pci(bus->dev))
+		return 0;
+	master = to_pci_dev(bus->dev);
+	pci = to_pci_dev(dev);
+	return master->bus == pci->bus;
+}
+
+/* audio component notifier for AMD/Nvidia HDMI codecs */
+static void generic_acomp_pin_eld_notify(void *audio_ptr, int port, int dev_id)
+{
+	struct hda_codec *codec = audio_ptr;
+	struct hdmi_spec *spec = codec->spec;
+	hda_nid_t pin_nid = spec->port2pin(codec, port);
+
+	if (!pin_nid)
+		return;
+	if (get_wcaps_type(get_wcaps(codec, pin_nid)) != AC_WID_PIN)
+		return;
+	/* skip notification during system suspend (but not in runtime PM);
+	 * the state will be updated at resume
+	 */
+	if (codec->core.dev.power.power_state.event == PM_EVENT_SUSPEND)
+		return;
+
+	check_presence_and_report(codec, pin_nid, dev_id);
+}
+
+/* set up the private drm_audio_ops from the template */
+static void setup_drm_audio_ops(struct hda_codec *codec,
+				const struct drm_audio_component_audio_ops *ops)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	spec->drm_audio_ops.audio_ptr = codec;
+	/* intel_audio_codec_enable() or intel_audio_codec_disable()
+	 * will call pin_eld_notify with using audio_ptr pointer
+	 * We need make sure audio_ptr is really setup
+	 */
+	wmb();
+	spec->drm_audio_ops.pin2port = ops->pin2port;
+	spec->drm_audio_ops.pin_eld_notify = ops->pin_eld_notify;
+	spec->drm_audio_ops.master_bind = ops->master_bind;
+	spec->drm_audio_ops.master_unbind = ops->master_unbind;
+}
+
+/* initialize the generic HDMI audio component */
+static void generic_acomp_init(struct hda_codec *codec,
+			       const struct drm_audio_component_audio_ops *ops,
+			       int (*port2pin)(struct hda_codec *, int))
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (!enable_acomp) {
+		codec_info(codec, "audio component disabled by module option\n");
+		return;
+	}
+
+	spec->port2pin = port2pin;
+	setup_drm_audio_ops(codec, ops);
+	if (!snd_hdac_acomp_init(&codec->bus->core, &spec->drm_audio_ops,
+				 match_bound_vga, 0)) {
+		spec->acomp_registered = true;
+	}
+}
+
+/*
+ * Intel codec parsers and helpers
+ */
+
+#define INTEL_GET_VENDOR_VERB	0xf81
+#define INTEL_SET_VENDOR_VERB	0x781
+#define INTEL_EN_DP12		0x02	/* enable DP 1.2 features */
+#define INTEL_EN_ALL_PIN_CVTS	0x01	/* enable 2nd & 3rd pins and convertors */
+
+static void intel_haswell_enable_all_pins(struct hda_codec *codec,
+					  bool update_tree)
+{
+	unsigned int vendor_param;
+	struct hdmi_spec *spec = codec->spec;
+
+	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
+				INTEL_GET_VENDOR_VERB, 0);
+	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
+		return;
+
+	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
+	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
+				INTEL_SET_VENDOR_VERB, vendor_param);
+	if (vendor_param == -1)
+		return;
+
+	if (update_tree)
+		snd_hda_codec_update_widgets(codec);
+}
+
+static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
+{
+	unsigned int vendor_param;
+	struct hdmi_spec *spec = codec->spec;
+
+	vendor_param = snd_hda_codec_read(codec, spec->vendor_nid, 0,
+				INTEL_GET_VENDOR_VERB, 0);
+	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
+		return;
+
+	/* enable DP1.2 mode */
+	vendor_param |= INTEL_EN_DP12;
+	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
+	snd_hda_codec_write_cache(codec, spec->vendor_nid, 0,
+				INTEL_SET_VENDOR_VERB, vendor_param);
+}
+
+/* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
+ * Otherwise you may get severe h/w communication errors.
+ */
+static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
+				unsigned int power_state)
+{
+	if (power_state == AC_PWRST_D0) {
+		intel_haswell_enable_all_pins(codec, false);
+		intel_haswell_fixup_enable_dp12(codec);
+	}
+
+	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
+	snd_hda_codec_set_power_to_all(codec, fg, power_state);
+}
+
+/* There is a fixed mapping between audio pin node and display port.
+ * on SNB, IVY, HSW, BSW, SKL, BXT, KBL:
+ * Pin Widget 5 - PORT B (port = 1 in i915 driver)
+ * Pin Widget 6 - PORT C (port = 2 in i915 driver)
+ * Pin Widget 7 - PORT D (port = 3 in i915 driver)
+ *
+ * on VLV, ILK:
+ * Pin Widget 4 - PORT B (port = 1 in i915 driver)
+ * Pin Widget 5 - PORT C (port = 2 in i915 driver)
+ * Pin Widget 6 - PORT D (port = 3 in i915 driver)
+ */
+static int intel_base_nid(struct hda_codec *codec)
+{
+	switch (codec->core.vendor_id) {
+	case 0x80860054: /* ILK */
+	case 0x80862804: /* ILK */
+	case 0x80862882: /* VLV */
+		return 4;
+	default:
+		return 5;
+	}
+}
+
+static int intel_pin2port(void *audio_ptr, int pin_nid)
+{
+	struct hda_codec *codec = audio_ptr;
+	struct hdmi_spec *spec = codec->spec;
+	int base_nid, i;
+
+	if (!spec->port_num) {
+		base_nid = intel_base_nid(codec);
+		if (WARN_ON(pin_nid < base_nid || pin_nid >= base_nid + 3))
+			return -1;
+		return pin_nid - base_nid + 1;
+	}
+
+	/*
+	 * looking for the pin number in the mapping table and return
+	 * the index which indicate the port number
+	 */
+	for (i = 0; i < spec->port_num; i++) {
+		if (pin_nid == spec->port_map[i])
+			return i;
+	}
+
+	codec_info(codec, "Can't find the HDMI/DP port for pin %d\n", pin_nid);
+	return -1;
+}
+
+static int intel_port2pin(struct hda_codec *codec, int port)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (!spec->port_num) {
+		/* we assume only from port-B to port-D */
+		if (port < 1 || port > 3)
+			return 0;
+		return port + intel_base_nid(codec) - 1;
+	}
+
+	if (port < 0 || port >= spec->port_num)
+		return 0;
+	return spec->port_map[port];
+}
+
+static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
+{
+	struct hda_codec *codec = audio_ptr;
+	int pin_nid;
+	int dev_id = pipe;
+
+	pin_nid = intel_port2pin(codec, port);
+	if (!pin_nid)
+		return;
+	/* skip notification during system suspend (but not in runtime PM);
+	 * the state will be updated at resume
+	 */
+	if (codec->core.dev.power.power_state.event == PM_EVENT_SUSPEND)
+		return;
+
+	snd_hdac_i915_set_bclk(&codec->bus->core);
+	check_presence_and_report(codec, pin_nid, dev_id);
+}
+
+static const struct drm_audio_component_audio_ops intel_audio_ops = {
+	.pin2port = intel_pin2port,
+	.pin_eld_notify = intel_pin_eld_notify,
+};
+
+/* register i915 component pin_eld_notify callback */
+static void register_i915_notifier(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	spec->use_acomp_notifier = true;
+	spec->port2pin = intel_port2pin;
+	setup_drm_audio_ops(codec, &intel_audio_ops);
+	snd_hdac_acomp_register_notifier(&codec->bus->core,
+					&spec->drm_audio_ops);
+	/* no need for forcible resume for jack check thanks to notifier */
+	codec->relaxed_resume = 1;
+}
+
+/* setup_stream ops override for HSW+ */
+static int i915_hsw_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+				 hda_nid_t pin_nid, int dev_id, u32 stream_tag,
+				 int format)
+{
+	haswell_verify_D0(codec, cvt_nid, pin_nid);
+	return hdmi_setup_stream(codec, cvt_nid, pin_nid, dev_id,
+				 stream_tag, format);
+}
+
+/* pin_cvt_fixup ops override for HSW+ and VLV+ */
+static void i915_pin_cvt_fixup(struct hda_codec *codec,
+			       struct hdmi_spec_per_pin *per_pin,
+			       hda_nid_t cvt_nid)
+{
+	if (per_pin) {
+		haswell_verify_D0(codec, per_pin->cvt_nid, per_pin->pin_nid);
+		snd_hda_set_dev_select(codec, per_pin->pin_nid,
+			       per_pin->dev_id);
+		intel_verify_pin_cvt_connect(codec, per_pin);
+		intel_not_share_assigned_cvt(codec, per_pin->pin_nid,
+				     per_pin->dev_id, per_pin->mux_idx);
+	} else {
+		intel_not_share_assigned_cvt_nid(codec, 0, 0, cvt_nid);
+	}
+}
+
+/* precondition and allocation for Intel codecs */
+static int alloc_intel_hdmi(struct hda_codec *codec)
+{
+	int err;
+
+	/* requires i915 binding */
+	if (!codec->bus->core.audio_component) {
+		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
+		/* set probe_id here to prevent generic fallback binding */
+		codec->probe_id = HDA_CODEC_ID_SKIP_PROBE;
+		return -ENODEV;
+	}
+
+	err = alloc_generic_hdmi(codec);
+	if (err < 0)
+		return err;
+	/* no need to handle unsol events */
+	codec->patch_ops.unsol_event = NULL;
+	return 0;
+}
+
+/* parse and post-process for Intel codecs */
+static int parse_intel_hdmi(struct hda_codec *codec)
+{
+	int err, retries = 3;
+
+	do {
+		err = hdmi_parse_codec(codec);
+	} while (err < 0 && retries--);
+
+	if (err < 0) {
+		generic_spec_free(codec);
+		return err;
+	}
+
+	generic_hdmi_init_per_pins(codec);
+	register_i915_notifier(codec);
+	return 0;
+}
+
+/* Intel Haswell and onwards; audio component with eld notifier */
+static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid,
+				 const int *port_map, int port_num)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = alloc_intel_hdmi(codec);
+	if (err < 0)
+		return err;
+	spec = codec->spec;
+	codec->dp_mst = true;
+	spec->dyn_pcm_assign = true;
+	spec->vendor_nid = vendor_nid;
+	spec->port_map = port_map;
+	spec->port_num = port_num;
+	spec->intel_hsw_fixup = true;
+
+	intel_haswell_enable_all_pins(codec, true);
+	intel_haswell_fixup_enable_dp12(codec);
+
+	codec->display_power_control = 1;
+
+	codec->patch_ops.set_power_state = haswell_set_power_state;
+	codec->depop_delay = 0;
+	codec->auto_runtime_pm = 1;
+
+	spec->ops.setup_stream = i915_hsw_setup_stream;
+	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
+
+	/*
+	 * Enable silent stream feature, if it is enabled via
+	 * module param or Kconfig option
+	 */
+	if (enable_silent_stream)
+		spec->send_silent_stream = true;
+
+	return parse_intel_hdmi(codec);
+}
+
+static int patch_i915_hsw_hdmi(struct hda_codec *codec)
+{
+	return intel_hsw_common_init(codec, 0x08, NULL, 0);
+}
+
+static int patch_i915_glk_hdmi(struct hda_codec *codec)
+{
+	return intel_hsw_common_init(codec, 0x0b, NULL, 0);
+}
+
+static int patch_i915_icl_hdmi(struct hda_codec *codec)
+{
+	/*
+	 * pin to port mapping table where the value indicate the pin number and
+	 * the index indicate the port number.
+	 */
+	static const int map[] = {0x0, 0x4, 0x6, 0x8, 0xa, 0xb};
+
+	return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
+}
+
+static int patch_i915_tgl_hdmi(struct hda_codec *codec)
+{
+	/*
+	 * pin to port mapping table where the value indicate the pin number and
+	 * the index indicate the port number.
+	 */
+	static const int map[] = {0x4, 0x6, 0x8, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
+	int ret;
+
+	ret = intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
+	if (!ret) {
+		struct hdmi_spec *spec = codec->spec;
+
+		spec->dyn_pcm_no_legacy = true;
+	}
+
+	return ret;
+}
+
+/* Intel Baytrail and Braswell; with eld notifier */
+static int patch_i915_byt_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = alloc_intel_hdmi(codec);
+	if (err < 0)
+		return err;
+	spec = codec->spec;
+
+	/* For Valleyview/Cherryview, only the display codec is in the display
+	 * power well and can use link_power ops to request/release the power.
+	 */
+	codec->display_power_control = 1;
+
+	codec->depop_delay = 0;
+	codec->auto_runtime_pm = 1;
+
+	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
+
+	return parse_intel_hdmi(codec);
+}
+
+/* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */
+static int patch_i915_cpt_hdmi(struct hda_codec *codec)
+{
+	int err;
+
+	err = alloc_intel_hdmi(codec);
+	if (err < 0)
+		return err;
+	return parse_intel_hdmi(codec);
+}
+
+/*
+ * Shared non-generic implementations
+ */
+
+static int simple_playback_build_pcms(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_pcm *info;
+	unsigned int chans;
+	struct hda_pcm_stream *pstr;
+	struct hdmi_spec_per_cvt *per_cvt;
+
+	per_cvt = get_cvt(spec, 0);
+	chans = get_wcaps(codec, per_cvt->cvt_nid);
+	chans = get_wcaps_channels(chans);
+
+	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
+	if (!info)
+		return -ENOMEM;
+	spec->pcm_rec[0].pcm = info;
+	info->pcm_type = HDA_PCM_TYPE_HDMI;
+	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
+	*pstr = spec->pcm_playback;
+	pstr->nid = per_cvt->cvt_nid;
+	if (pstr->channels_max <= 2 && chans && chans <= 16)
+		pstr->channels_max = chans;
+
+	return 0;
+}
+
+/* unsolicited event for jack sensing */
+static void simple_hdmi_unsol_event(struct hda_codec *codec,
+				    unsigned int res)
+{
+	snd_hda_jack_set_dirty_all(codec);
+	snd_hda_jack_report_sync(codec);
+}
+
+/* generic_hdmi_build_jack can be used for simple_hdmi, too,
+ * as long as spec->pins[] is set correctly
+ */
+#define simple_hdmi_build_jack	generic_hdmi_build_jack
+
+static int simple_playback_build_controls(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	int err;
+
+	per_cvt = get_cvt(spec, 0);
+	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
+					  per_cvt->cvt_nid,
+					  HDA_PCM_TYPE_HDMI);
+	if (err < 0)
+		return err;
+	return simple_hdmi_build_jack(codec, 0);
+}
+
+static int simple_playback_init(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
+	hda_nid_t pin = per_pin->pin_nid;
+
+	snd_hda_codec_write(codec, pin, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+	/* some codecs require to unmute the pin */
+	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
+				    AMP_OUT_UNMUTE);
+	snd_hda_jack_detect_enable(codec, pin, per_pin->dev_id);
+	return 0;
+}
+
+static void simple_playback_free(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	hdmi_array_free(spec);
+	kfree(spec);
+}
+
+/*
+ * Nvidia specific implementations
+ */
+
+#define Nv_VERB_SET_Channel_Allocation          0xF79
+#define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
+#define Nv_VERB_SET_Audio_Protection_On         0xF98
+#define Nv_VERB_SET_Audio_Protection_Off        0xF99
+
+#define nvhdmi_master_con_nid_7x	0x04
+#define nvhdmi_master_pin_nid_7x	0x05
+
+static const hda_nid_t nvhdmi_con_nids_7x[4] = {
+	/*front, rear, clfe, rear_surr */
+	0x6, 0x8, 0xa, 0xc,
+};
+
+static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
+	/* set audio protect on */
+	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
+	/* enable digital output on pin widget */
+	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{} /* terminator */
+};
+
+static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
+	/* set audio protect on */
+	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
+	/* enable digital output on pin widget */
+	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{} /* terminator */
+};
+
+#ifdef LIMITED_RATE_FMT_SUPPORT
+/* support only the safe format and rate */
+#define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
+#define SUPPORTED_MAXBPS	16
+#define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
+#else
+/* support all rates and formats */
+#define SUPPORTED_RATES \
+	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
+	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
+	 SNDRV_PCM_RATE_192000)
+#define SUPPORTED_MAXBPS	24
+#define SUPPORTED_FORMATS \
+	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
+#endif
+
+static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
+{
+	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
+	return 0;
+}
+
+static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
+{
+	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
+	return 0;
+}
+
+static const unsigned int channels_2_6_8[] = {
+	2, 6, 8
+};
+
+static const unsigned int channels_2_8[] = {
+	2, 8
+};
+
+static const struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
+	.count = ARRAY_SIZE(channels_2_6_8),
+	.list = channels_2_6_8,
+	.mask = 0,
+};
+
+static const struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
+	.count = ARRAY_SIZE(channels_2_8),
+	.list = channels_2_8,
+	.mask = 0,
+};
+
+static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
+				    struct hda_codec *codec,
+				    struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	const struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
+
+	switch (codec->preset->vendor_id) {
+	case 0x10de0002:
+	case 0x10de0003:
+	case 0x10de0005:
+	case 0x10de0006:
+		hw_constraints_channels = &hw_constraints_2_8_channels;
+		break;
+	case 0x10de0007:
+		hw_constraints_channels = &hw_constraints_2_6_8_channels;
+		break;
+	default:
+		break;
+	}
+
+	if (hw_constraints_channels != NULL) {
+		snd_pcm_hw_constraint_list(substream->runtime, 0,
+				SNDRV_PCM_HW_PARAM_CHANNELS,
+				hw_constraints_channels);
+	} else {
+		snd_pcm_hw_constraint_step(substream->runtime, 0,
+					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+	}
+
+	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
+}
+
+static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
+				     struct hda_codec *codec,
+				     struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+				       struct hda_codec *codec,
+				       unsigned int stream_tag,
+				       unsigned int format,
+				       struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
+					     stream_tag, format, substream);
+}
+
+static const struct hda_pcm_stream simple_pcm_playback = {
+	.substreams = 1,
+	.channels_min = 2,
+	.channels_max = 2,
+	.ops = {
+		.open = simple_playback_pcm_open,
+		.close = simple_playback_pcm_close,
+		.prepare = simple_playback_pcm_prepare
+	},
+};
+
+static const struct hda_codec_ops simple_hdmi_patch_ops = {
+	.build_controls = simple_playback_build_controls,
+	.build_pcms = simple_playback_build_pcms,
+	.init = simple_playback_init,
+	.free = simple_playback_free,
+	.unsol_event = simple_hdmi_unsol_event,
+};
+
+static int patch_simple_hdmi(struct hda_codec *codec,
+			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	struct hdmi_spec_per_pin *per_pin;
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (!spec)
+		return -ENOMEM;
+
+	spec->codec = codec;
+	codec->spec = spec;
+	hdmi_array_init(spec, 1);
+
+	spec->multiout.num_dacs = 0;  /* no analog */
+	spec->multiout.max_channels = 2;
+	spec->multiout.dig_out_nid = cvt_nid;
+	spec->num_cvts = 1;
+	spec->num_pins = 1;
+	per_pin = snd_array_new(&spec->pins);
+	per_cvt = snd_array_new(&spec->cvts);
+	if (!per_pin || !per_cvt) {
+		simple_playback_free(codec);
+		return -ENOMEM;
+	}
+	per_cvt->cvt_nid = cvt_nid;
+	per_pin->pin_nid = pin_nid;
+	spec->pcm_playback = simple_pcm_playback;
+
+	codec->patch_ops = simple_hdmi_patch_ops;
+
+	return 0;
+}
+
+static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
+						    int channels)
+{
+	unsigned int chanmask;
+	int chan = channels ? (channels - 1) : 1;
+
+	switch (channels) {
+	default:
+	case 0:
+	case 2:
+		chanmask = 0x00;
+		break;
+	case 4:
+		chanmask = 0x08;
+		break;
+	case 6:
+		chanmask = 0x0b;
+		break;
+	case 8:
+		chanmask = 0x13;
+		break;
+	}
+
+	/* Set the audio infoframe channel allocation and checksum fields.  The
+	 * channel count is computed implicitly by the hardware. */
+	snd_hda_codec_write(codec, 0x1, 0,
+			Nv_VERB_SET_Channel_Allocation, chanmask);
+
+	snd_hda_codec_write(codec, 0x1, 0,
+			Nv_VERB_SET_Info_Frame_Checksum,
+			(0x71 - chan - chanmask));
+}
+
+static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
+				   struct hda_codec *codec,
+				   struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int i;
+
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
+			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
+	for (i = 0; i < 4; i++) {
+		/* set the stream id */
+		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
+				AC_VERB_SET_CHANNEL_STREAMID, 0);
+		/* set the stream format */
+		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
+				AC_VERB_SET_STREAM_FORMAT, 0);
+	}
+
+	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
+	 * streams are disabled. */
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
+	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
+				     struct hda_codec *codec,
+				     unsigned int stream_tag,
+				     unsigned int format,
+				     struct snd_pcm_substream *substream)
+{
+	int chs;
+	unsigned int dataDCC2, channel_id;
+	int i;
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_spdif_out *spdif;
+	struct hdmi_spec_per_cvt *per_cvt;
+
+	mutex_lock(&codec->spdif_mutex);
+	per_cvt = get_cvt(spec, 0);
+	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
+
+	chs = substream->runtime->channels;
+
+	dataDCC2 = 0x2;
+
+	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
+	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
+
+	/* set the stream id */
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
+			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
+
+	/* set the stream format */
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
+			AC_VERB_SET_STREAM_FORMAT, format);
+
+	/* turn on again (if needed) */
+	/* enable and set the channel status audio/data flag */
+	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & 0xff);
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
+	}
+
+	for (i = 0; i < 4; i++) {
+		if (chs == 2)
+			channel_id = 0;
+		else
+			channel_id = i * 2;
+
+		/* turn off SPDIF once;
+		 *otherwise the IEC958 bits won't be updated
+		 */
+		if (codec->spdif_status_reset &&
+		(spdif->ctls & AC_DIG1_ENABLE))
+			snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
+		/* set the stream id */
+		snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_CHANNEL_STREAMID,
+				(stream_tag << 4) | channel_id);
+		/* set the stream format */
+		snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_STREAM_FORMAT,
+				format);
+		/* turn on again (if needed) */
+		/* enable and set the channel status audio/data flag */
+		if (codec->spdif_status_reset &&
+		(spdif->ctls & AC_DIG1_ENABLE)) {
+			snd_hda_codec_write(codec,
+					nvhdmi_con_nids_7x[i],
+					0,
+					AC_VERB_SET_DIGI_CONVERT_1,
+					spdif->ctls & 0xff);
+			snd_hda_codec_write(codec,
+					nvhdmi_con_nids_7x[i],
+					0,
+					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
+		}
+	}
+
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
+
+	mutex_unlock(&codec->spdif_mutex);
+	return 0;
+}
+
+static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
+	.substreams = 1,
+	.channels_min = 2,
+	.channels_max = 8,
+	.nid = nvhdmi_master_con_nid_7x,
+	.rates = SUPPORTED_RATES,
+	.maxbps = SUPPORTED_MAXBPS,
+	.formats = SUPPORTED_FORMATS,
+	.ops = {
+		.open = simple_playback_pcm_open,
+		.close = nvhdmi_8ch_7x_pcm_close,
+		.prepare = nvhdmi_8ch_7x_pcm_prepare
+	},
+};
+
+static int patch_nvhdmi_2ch(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
+				    nvhdmi_master_pin_nid_7x);
+	if (err < 0)
+		return err;
+
+	codec->patch_ops.init = nvhdmi_7x_init_2ch;
+	/* override the PCM rates, etc, as the codec doesn't give full list */
+	spec = codec->spec;
+	spec->pcm_playback.rates = SUPPORTED_RATES;
+	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
+	spec->pcm_playback.formats = SUPPORTED_FORMATS;
+	spec->nv_dp_workaround = true;
+	return 0;
+}
+
+static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int err = simple_playback_build_pcms(codec);
+	if (!err) {
+		struct hda_pcm *info = get_pcm_rec(spec, 0);
+		info->own_chmap = true;
+	}
+	return err;
+}
+
+static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_pcm *info;
+	struct snd_pcm_chmap *chmap;
+	int err;
+
+	err = simple_playback_build_controls(codec);
+	if (err < 0)
+		return err;
+
+	/* add channel maps */
+	info = get_pcm_rec(spec, 0);
+	err = snd_pcm_add_chmap_ctls(info->pcm,
+				     SNDRV_PCM_STREAM_PLAYBACK,
+				     snd_pcm_alt_chmaps, 8, 0, &chmap);
+	if (err < 0)
+		return err;
+	switch (codec->preset->vendor_id) {
+	case 0x10de0002:
+	case 0x10de0003:
+	case 0x10de0005:
+	case 0x10de0006:
+		chmap->channel_mask = (1U << 2) | (1U << 8);
+		break;
+	case 0x10de0007:
+		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
+	}
+	return 0;
+}
+
+static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err = patch_nvhdmi_2ch(codec);
+	if (err < 0)
+		return err;
+	spec = codec->spec;
+	spec->multiout.max_channels = 8;
+	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
+	codec->patch_ops.init = nvhdmi_7x_init_8ch;
+	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
+	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
+
+	/* Initialize the audio infoframe channel mask and checksum to something
+	 * valid */
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
+	return 0;
+}
+
+/*
+ * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
+ * - 0x10de0015
+ * - 0x10de0040
+ */
+static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap,
+		struct hdac_cea_channel_speaker_allocation *cap, int channels)
+{
+	if (cap->ca_index == 0x00 && channels == 2)
+		return SNDRV_CTL_TLVT_CHMAP_FIXED;
+
+	/* If the speaker allocation matches the channel count, it is OK. */
+	if (cap->channels != channels)
+		return -1;
+
+	/* all channels are remappable freely */
+	return SNDRV_CTL_TLVT_CHMAP_VAR;
+}
+
+static int nvhdmi_chmap_validate(struct hdac_chmap *chmap,
+		int ca, int chs, unsigned char *map)
+{
+	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
+		return -EINVAL;
+
+	return 0;
+}
+
+/* map from pin NID to port; port is 0-based */
+/* for Nvidia: assume widget NID starting from 4, with step 1 (4, 5, 6, ...) */
+static int nvhdmi_pin2port(void *audio_ptr, int pin_nid)
+{
+	return pin_nid - 4;
+}
+
+/* reverse-map from port to pin NID: see above */
+static int nvhdmi_port2pin(struct hda_codec *codec, int port)
+{
+	return port + 4;
+}
+
+static const struct drm_audio_component_audio_ops nvhdmi_audio_ops = {
+	.pin2port = nvhdmi_pin2port,
+	.pin_eld_notify = generic_acomp_pin_eld_notify,
+	.master_bind = generic_acomp_master_bind,
+	.master_unbind = generic_acomp_master_unbind,
+};
+
+static int patch_nvhdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = alloc_generic_hdmi(codec);
+	if (err < 0)
+		return err;
+	codec->dp_mst = true;
+
+	spec = codec->spec;
+	spec->dyn_pcm_assign = true;
+
+	err = hdmi_parse_codec(codec);
+	if (err < 0) {
+		generic_spec_free(codec);
+		return err;
+	}
+
+	generic_hdmi_init_per_pins(codec);
+
+	spec->dyn_pin_out = true;
+
+	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
+		nvhdmi_chmap_cea_alloc_validate_get_type;
+	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
+	spec->nv_dp_workaround = true;
+
+	codec->link_down_at_suspend = 1;
+
+	generic_acomp_init(codec, &nvhdmi_audio_ops, nvhdmi_port2pin);
+
+	return 0;
+}
+
+static int patch_nvhdmi_legacy(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = patch_generic_hdmi(codec);
+	if (err)
+		return err;
+
+	spec = codec->spec;
+	spec->dyn_pin_out = true;
+
+	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
+		nvhdmi_chmap_cea_alloc_validate_get_type;
+	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
+	spec->nv_dp_workaround = true;
+
+	codec->link_down_at_suspend = 1;
+
+	return 0;
+}
+
+/*
+ * The HDA codec on NVIDIA Tegra contains two scratch registers that are
+ * accessed using vendor-defined verbs. These registers can be used for
+ * interoperability between the HDA and HDMI drivers.
+ */
+
+/* Audio Function Group node */
+#define NVIDIA_AFG_NID 0x01
+
+/*
+ * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
+ * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
+ * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
+ * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
+ * additional bit (at position 30) to signal the validity of the format.
+ *
+ * | 31      | 30    | 29  16 | 15   0 |
+ * +---------+-------+--------+--------+
+ * | TRIGGER | VALID | UNUSED | FORMAT |
+ * +-----------------------------------|
+ *
+ * Note that for the trigger bit to take effect it needs to change value
+ * (i.e. it needs to be toggled).
+ */
+#define NVIDIA_GET_SCRATCH0		0xfa6
+#define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
+#define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
+#define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
+#define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
+#define NVIDIA_SCRATCH_TRIGGER (1 << 7)
+#define NVIDIA_SCRATCH_VALID   (1 << 6)
+
+#define NVIDIA_GET_SCRATCH1		0xfab
+#define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
+#define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
+#define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
+#define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
+
+/*
+ * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
+ * the format is invalidated so that the HDMI codec can be disabled.
+ */
+static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
+{
+	unsigned int value;
+
+	/* bits [31:30] contain the trigger and valid bits */
+	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
+				   NVIDIA_GET_SCRATCH0, 0);
+	value = (value >> 24) & 0xff;
+
+	/* bits [15:0] are used to store the HDA format */
+	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+			    NVIDIA_SET_SCRATCH0_BYTE0,
+			    (format >> 0) & 0xff);
+	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+			    NVIDIA_SET_SCRATCH0_BYTE1,
+			    (format >> 8) & 0xff);
+
+	/* bits [16:24] are unused */
+	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
+
+	/*
+	 * Bit 30 signals that the data is valid and hence that HDMI audio can
+	 * be enabled.
+	 */
+	if (format == 0)
+		value &= ~NVIDIA_SCRATCH_VALID;
+	else
+		value |= NVIDIA_SCRATCH_VALID;
+
+	/*
+	 * Whenever the trigger bit is toggled, an interrupt is raised in the
+	 * HDMI codec. The HDMI driver will use that as trigger to update its
+	 * configuration.
+	 */
+	value ^= NVIDIA_SCRATCH_TRIGGER;
+
+	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
+			    NVIDIA_SET_SCRATCH0_BYTE3, value);
+}
+
+static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
+				  struct hda_codec *codec,
+				  unsigned int stream_tag,
+				  unsigned int format,
+				  struct snd_pcm_substream *substream)
+{
+	int err;
+
+	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
+						format, substream);
+	if (err < 0)
+		return err;
+
+	/* notify the HDMI codec of the format change */
+	tegra_hdmi_set_format(codec, format);
+
+	return 0;
+}
+
+static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
+				  struct hda_codec *codec,
+				  struct snd_pcm_substream *substream)
+{
+	/* invalidate the format in the HDMI codec */
+	tegra_hdmi_set_format(codec, 0);
+
+	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
+}
+
+static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
+{
+	struct hdmi_spec *spec = codec->spec;
+	unsigned int i;
+
+	for (i = 0; i < spec->num_pins; i++) {
+		struct hda_pcm *pcm = get_pcm_rec(spec, i);
+
+		if (pcm->pcm_type == type)
+			return pcm;
+	}
+
+	return NULL;
+}
+
+static int tegra_hdmi_build_pcms(struct hda_codec *codec)
+{
+	struct hda_pcm_stream *stream;
+	struct hda_pcm *pcm;
+	int err;
+
+	err = generic_hdmi_build_pcms(codec);
+	if (err < 0)
+		return err;
+
+	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
+	if (!pcm)
+		return -ENODEV;
+
+	/*
+	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
+	 * codec about format changes.
+	 */
+	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
+	stream->ops.prepare = tegra_hdmi_pcm_prepare;
+	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
+
+	return 0;
+}
+
+static int patch_tegra_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = patch_generic_hdmi(codec);
+	if (err)
+		return err;
+
+	codec->depop_delay = 10;
+	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
+	spec = codec->spec;
+	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
+		nvhdmi_chmap_cea_alloc_validate_get_type;
+	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
+	spec->nv_dp_workaround = true;
+
+	return 0;
+}
+
+/*
+ * ATI/AMD-specific implementations
+ */
+
+#define is_amdhdmi_rev3_or_later(codec) \
+	((codec)->core.vendor_id == 0x1002aa01 && \
+	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
+#define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
+
+/* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
+#define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
+#define ATI_VERB_SET_DOWNMIX_INFO	0x772
+#define ATI_VERB_SET_MULTICHANNEL_01	0x777
+#define ATI_VERB_SET_MULTICHANNEL_23	0x778
+#define ATI_VERB_SET_MULTICHANNEL_45	0x779
+#define ATI_VERB_SET_MULTICHANNEL_67	0x77a
+#define ATI_VERB_SET_HBR_CONTROL	0x77c
+#define ATI_VERB_SET_MULTICHANNEL_1	0x785
+#define ATI_VERB_SET_MULTICHANNEL_3	0x786
+#define ATI_VERB_SET_MULTICHANNEL_5	0x787
+#define ATI_VERB_SET_MULTICHANNEL_7	0x788
+#define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
+#define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
+#define ATI_VERB_GET_DOWNMIX_INFO	0xf72
+#define ATI_VERB_GET_MULTICHANNEL_01	0xf77
+#define ATI_VERB_GET_MULTICHANNEL_23	0xf78
+#define ATI_VERB_GET_MULTICHANNEL_45	0xf79
+#define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
+#define ATI_VERB_GET_HBR_CONTROL	0xf7c
+#define ATI_VERB_GET_MULTICHANNEL_1	0xf85
+#define ATI_VERB_GET_MULTICHANNEL_3	0xf86
+#define ATI_VERB_GET_MULTICHANNEL_5	0xf87
+#define ATI_VERB_GET_MULTICHANNEL_7	0xf88
+#define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
+
+/* AMD specific HDA cvt verbs */
+#define ATI_VERB_SET_RAMP_RATE		0x770
+#define ATI_VERB_GET_RAMP_RATE		0xf70
+
+#define ATI_OUT_ENABLE 0x1
+
+#define ATI_MULTICHANNEL_MODE_PAIRED	0
+#define ATI_MULTICHANNEL_MODE_SINGLE	1
+
+#define ATI_HBR_CAPABLE 0x01
+#define ATI_HBR_ENABLE 0x10
+
+static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
+			       int dev_id, unsigned char *buf, int *eld_size)
+{
+	WARN_ON(dev_id != 0);
+	/* call hda_eld.c ATI/AMD-specific function */
+	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
+				    is_amdhdmi_rev3_or_later(codec));
+}
+
+static void atihdmi_pin_setup_infoframe(struct hda_codec *codec,
+					hda_nid_t pin_nid, int dev_id, int ca,
+					int active_channels, int conn_type)
+{
+	WARN_ON(dev_id != 0);
+	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
+}
+
+static int atihdmi_paired_swap_fc_lfe(int pos)
+{
+	/*
+	 * ATI/AMD have automatic FC/LFE swap built-in
+	 * when in pairwise mapping mode.
+	 */
+
+	switch (pos) {
+		/* see channel_allocations[].speakers[] */
+		case 2: return 3;
+		case 3: return 2;
+		default: break;
+	}
+
+	return pos;
+}
+
+static int atihdmi_paired_chmap_validate(struct hdac_chmap *chmap,
+			int ca, int chs, unsigned char *map)
+{
+	struct hdac_cea_channel_speaker_allocation *cap;
+	int i, j;
+
+	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
+
+	cap = snd_hdac_get_ch_alloc_from_ca(ca);
+	for (i = 0; i < chs; ++i) {
+		int mask = snd_hdac_chmap_to_spk_mask(map[i]);
+		bool ok = false;
+		bool companion_ok = false;
+
+		if (!mask)
+			continue;
+
+		for (j = 0 + i % 2; j < 8; j += 2) {
+			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
+			if (cap->speakers[chan_idx] == mask) {
+				/* channel is in a supported position */
+				ok = true;
+
+				if (i % 2 == 0 && i + 1 < chs) {
+					/* even channel, check the odd companion */
+					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
+					int comp_mask_req = snd_hdac_chmap_to_spk_mask(map[i+1]);
+					int comp_mask_act = cap->speakers[comp_chan_idx];
+
+					if (comp_mask_req == comp_mask_act)
+						companion_ok = true;
+					else
+						return -EINVAL;
+				}
+				break;
+			}
+		}
+
+		if (!ok)
+			return -EINVAL;
+
+		if (companion_ok)
+			i++; /* companion channel already checked */
+	}
+
+	return 0;
+}
+
+static int atihdmi_pin_set_slot_channel(struct hdac_device *hdac,
+		hda_nid_t pin_nid, int hdmi_slot, int stream_channel)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	int verb;
+	int ati_channel_setup = 0;
+
+	if (hdmi_slot > 7)
+		return -EINVAL;
+
+	if (!has_amd_full_remap_support(codec)) {
+		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
+
+		/* In case this is an odd slot but without stream channel, do not
+		 * disable the slot since the corresponding even slot could have a
+		 * channel. In case neither have a channel, the slot pair will be
+		 * disabled when this function is called for the even slot. */
+		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
+			return 0;
+
+		hdmi_slot -= hdmi_slot % 2;
+
+		if (stream_channel != 0xf)
+			stream_channel -= stream_channel % 2;
+	}
+
+	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
+
+	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
+
+	if (stream_channel != 0xf)
+		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
+
+	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
+}
+
+static int atihdmi_pin_get_slot_channel(struct hdac_device *hdac,
+				hda_nid_t pin_nid, int asp_slot)
+{
+	struct hda_codec *codec = hdac_to_hda_codec(hdac);
+	bool was_odd = false;
+	int ati_asp_slot = asp_slot;
+	int verb;
+	int ati_channel_setup;
+
+	if (asp_slot > 7)
+		return -EINVAL;
+
+	if (!has_amd_full_remap_support(codec)) {
+		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
+		if (ati_asp_slot % 2 != 0) {
+			ati_asp_slot -= 1;
+			was_odd = true;
+		}
+	}
+
+	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
+
+	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
+
+	if (!(ati_channel_setup & ATI_OUT_ENABLE))
+		return 0xf;
+
+	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
+}
+
+static int atihdmi_paired_chmap_cea_alloc_validate_get_type(
+		struct hdac_chmap *chmap,
+		struct hdac_cea_channel_speaker_allocation *cap,
+		int channels)
+{
+	int c;
+
+	/*
+	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
+	 * we need to take that into account (a single channel may take 2
+	 * channel slots if we need to carry a silent channel next to it).
+	 * On Rev3+ AMD codecs this function is not used.
+	 */
+	int chanpairs = 0;
+
+	/* We only produce even-numbered channel count TLVs */
+	if ((channels % 2) != 0)
+		return -1;
+
+	for (c = 0; c < 7; c += 2) {
+		if (cap->speakers[c] || cap->speakers[c+1])
+			chanpairs++;
+	}
+
+	if (chanpairs * 2 != channels)
+		return -1;
+
+	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
+}
+
+static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct hdac_chmap *hchmap,
+		struct hdac_cea_channel_speaker_allocation *cap,
+		unsigned int *chmap, int channels)
+{
+	/* produce paired maps for pre-rev3 ATI/AMD codecs */
+	int count = 0;
+	int c;
+
+	for (c = 7; c >= 0; c--) {
+		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
+		int spk = cap->speakers[chan];
+		if (!spk) {
+			/* add N/A channel if the companion channel is occupied */
+			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
+				chmap[count++] = SNDRV_CHMAP_NA;
+
+			continue;
+		}
+
+		chmap[count++] = snd_hdac_spk_to_chmap(spk);
+	}
+
+	WARN_ON(count != channels);
+}
+
+static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
+				 int dev_id, bool hbr)
+{
+	int hbr_ctl, hbr_ctl_new;
+
+	WARN_ON(dev_id != 0);
+
+	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
+	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
+		if (hbr)
+			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
+		else
+			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
+
+		codec_dbg(codec,
+			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
+				pin_nid,
+				hbr_ctl == hbr_ctl_new ? "" : "new-",
+				hbr_ctl_new);
+
+		if (hbr_ctl != hbr_ctl_new)
+			snd_hda_codec_write(codec, pin_nid, 0,
+						ATI_VERB_SET_HBR_CONTROL,
+						hbr_ctl_new);
+
+	} else if (hbr)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+				hda_nid_t pin_nid, int dev_id,
+				u32 stream_tag, int format)
+{
+	if (is_amdhdmi_rev3_or_later(codec)) {
+		int ramp_rate = 180; /* default as per AMD spec */
+		/* disable ramp-up/down for non-pcm as per AMD spec */
+		if (format & AC_FMT_TYPE_NON_PCM)
+			ramp_rate = 0;
+
+		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
+	}
+
+	return hdmi_setup_stream(codec, cvt_nid, pin_nid, dev_id,
+				 stream_tag, format);
+}
+
+
+static int atihdmi_init(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx, err;
+
+	err = generic_hdmi_init(codec);
+
+	if (err)
+		return err;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+
+		/* make sure downmix information in infoframe is zero */
+		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
+
+		/* enable channel-wise remap mode if supported */
+		if (has_amd_full_remap_support(codec))
+			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+					    ATI_VERB_SET_MULTICHANNEL_MODE,
+					    ATI_MULTICHANNEL_MODE_SINGLE);
+	}
+	codec->auto_runtime_pm = 1;
+
+	return 0;
+}
+
+/* map from pin NID to port; port is 0-based */
+/* for AMD: assume widget NID starting from 3, with step 2 (3, 5, 7, ...) */
+static int atihdmi_pin2port(void *audio_ptr, int pin_nid)
+{
+	return pin_nid / 2 - 1;
+}
+
+/* reverse-map from port to pin NID: see above */
+static int atihdmi_port2pin(struct hda_codec *codec, int port)
+{
+	return port * 2 + 3;
+}
+
+static const struct drm_audio_component_audio_ops atihdmi_audio_ops = {
+	.pin2port = atihdmi_pin2port,
+	.pin_eld_notify = generic_acomp_pin_eld_notify,
+	.master_bind = generic_acomp_master_bind,
+	.master_unbind = generic_acomp_master_unbind,
+};
+
+static int patch_atihdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	struct hdmi_spec_per_cvt *per_cvt;
+	int err, cvt_idx;
+
+	err = patch_generic_hdmi(codec);
+
+	if (err)
+		return err;
+
+	codec->patch_ops.init = atihdmi_init;
+
+	spec = codec->spec;
+
+	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
+	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
+	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
+	spec->ops.setup_stream = atihdmi_setup_stream;
+
+	spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
+	spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
+
+	if (!has_amd_full_remap_support(codec)) {
+		/* override to ATI/AMD-specific versions with pairwise mapping */
+		spec->chmap.ops.chmap_cea_alloc_validate_get_type =
+			atihdmi_paired_chmap_cea_alloc_validate_get_type;
+		spec->chmap.ops.cea_alloc_to_tlv_chmap =
+				atihdmi_paired_cea_alloc_to_tlv_chmap;
+		spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;
+	}
+
+	/* ATI/AMD converters do not advertise all of their capabilities */
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+		per_cvt = get_cvt(spec, cvt_idx);
+		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
+		per_cvt->rates |= SUPPORTED_RATES;
+		per_cvt->formats |= SUPPORTED_FORMATS;
+		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
+	}
+
+	spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);
+
+	/* AMD GPUs have neither EPSS nor CLKSTOP bits, hence preventing
+	 * the link-down as is.  Tell the core to allow it.
+	 */
+	codec->link_down_at_suspend = 1;
+
+	generic_acomp_init(codec, &atihdmi_audio_ops, atihdmi_port2pin);
+
+	return 0;
+}
+
+/* VIA HDMI Implementation */
+#define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
+#define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
+
+static int patch_via_hdmi(struct hda_codec *codec)
+{
+	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
+}
+
+static int patch_gf_hdmi(struct hda_codec *codec)
+{
+	int err;
+
+	err = patch_generic_hdmi(codec);
+	if (err)
+		return err;
+
+	/*
+	 * Glenfly GPUs have two codecs, stream switches from one codec to
+	 * another, need to do actual clean-ups in codec_cleanup_stream
+	 */
+	codec->no_sticky_stream = 1;
+	return 0;
+}
+
+/*
+ * patch entries
+ */
+static const struct hda_device_id snd_hda_id_hdmi[] = {
+HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",	patch_atihdmi),
+HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",	patch_atihdmi),
+HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",	patch_atihdmi),
+HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
+HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x10de0001, "MCP73 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0004, "GPU 04 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0008, "GPU 08 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0009, "GPU 09 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",	patch_nvhdmi_legacy),
+/* 17 is known to be absent */
+HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",	patch_nvhdmi_legacy),
+HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",	patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",	patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",	patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP",	patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de002d, "Tegra186 HDMI/DP0", patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de002e, "Tegra186 HDMI/DP1", patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),
+HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0045, "GPU 45 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0050, "GPU 50 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0052, "GPU 52 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0061, "GPU 61 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0062, "GPU 62 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0073, "GPU 73 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0074, "GPU 74 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0076, "GPU 76 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007b, "GPU 7b HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007c, "GPU 7c HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007e, "GPU 7e HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0081, "GPU 81 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0084, "GPU 84 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0090, "GPU 90 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0091, "GPU 91 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0092, "GPU 92 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0094, "GPU 94 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0095, "GPU 95 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0097, "GPU 97 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009a, "GPU 9a HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009d, "GPU 9d HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009e, "GPU 9e HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009f, "GPU 9f HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a0, "GPU a0 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a3, "GPU a3 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a4, "GPU a4 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a5, "GPU a5 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a6, "GPU a6 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a7, "GPU a7 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x67663d82, "Arise 82 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x67663d83, "Arise 83 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x67663d84, "Arise 84 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x67663d85, "Arise 85 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x67663d86, "Arise 86 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x67663d87, "Arise 87 HDMI/DP",	patch_gf_hdmi),
+HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
+HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
+HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
+HDA_CODEC_ENTRY(0x80862800, "Geminilake HDMI",	patch_i915_glk_hdmi),
+HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
+HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI",	patch_i915_cpt_hdmi),
+HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_i915_cpt_hdmi),
+HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",	patch_i915_hsw_hdmi),
+HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",	patch_i915_hsw_hdmi),
+HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_i915_hsw_hdmi),
+HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_i915_hsw_hdmi),
+HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",	patch_i915_hsw_hdmi),
+HDA_CODEC_ENTRY(0x8086280c, "Cannonlake HDMI",	patch_i915_glk_hdmi),
+HDA_CODEC_ENTRY(0x8086280d, "Geminilake HDMI",	patch_i915_glk_hdmi),
+HDA_CODEC_ENTRY(0x8086280f, "Icelake HDMI",	patch_i915_icl_hdmi),
+HDA_CODEC_ENTRY(0x80862812, "Tigerlake HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862814, "DG1 HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862815, "Alderlake HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862816, "Rocketlake HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862819, "DG2 HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x8086281a, "Jasperlake HDMI",	patch_i915_icl_hdmi),
+HDA_CODEC_ENTRY(0x8086281b, "Elkhartlake HDMI",	patch_i915_icl_hdmi),
+HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
+HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
+HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",	patch_generic_hdmi),
+/* special ID for generic HDMI */
+HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
+{} /* terminator */
+};
+MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HDMI HD-audio codec");
+MODULE_ALIAS("snd-hda-codec-intelhdmi");
+MODULE_ALIAS("snd-hda-codec-nvhdmi");
+MODULE_ALIAS("snd-hda-codec-atihdmi");
+
+static struct hda_codec_driver hdmi_driver = {
+	.id = snd_hda_id_hdmi,
+};
+
+module_hda_codec_driver(hdmi_driver);