diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index f27d115..0cb83a3 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -18,12 +18,137 @@
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
+#include <sound/tlv.h>
 #include <sound/pcm_drm_eld.h>
 #include <sound/hdmi-codec.h>
 #include <sound/pcm_iec958.h>
 
 #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */
 
+#define HDMI_MAX_SPEAKERS  8
+
+/*
+ * CEA speaker placement for HDMI 1.4:
+ *
+ *  FL  FLC   FC   FRC   FR   FRW
+ *
+ *                                  LFE
+ *
+ *  RL  RLC   RC   RRC   RR
+ *
+ *  Speaker placement has to be extended to support HDMI 2.0
+ */
+enum hdmi_codec_cea_spk_placement {
+	FL  = (1 <<  0),	/* Front Left           */
+	FC  = (1 <<  1),	/* Front Center         */
+	FR  = (1 <<  2),	/* Front Right          */
+	FLC = (1 <<  3),	/* Front Left Center    */
+	FRC = (1 <<  4),	/* Front Right Center   */
+	RL  = (1 <<  5),	/* Rear Left            */
+	RC  = (1 <<  6),	/* Rear Center          */
+	RR  = (1 <<  7),	/* Rear Right           */
+	RLC = (1 <<  8),	/* Rear Left Center     */
+	RRC = (1 <<  9),	/* Rear Right Center    */
+	LFE = (1 << 10),	/* Low Frequency Effect */
+};
+
+/*
+ * ELD Speaker allocation bits in the CEA Speaker Allocation data block
+ */
+static int hdmi_codec_eld_spk_alloc_bits[] = {
+	[0] = FL | FR,
+	[1] = LFE,
+	[2] = FC,
+	[3] = RL | RR,
+	[4] = RC,
+	[5] = FLC | FRC,
+	[6] = RLC | RRC,
+};
+
+struct hdmi_codec_channel_map_table {
+	unsigned char map;	/* ALSA API channel map position */
+	int spk_mask;		/* speaker position bit mask */
+};
+
+static struct hdmi_codec_channel_map_table hdmi_codec_map_table[] = {
+	{ SNDRV_CHMAP_FL,	FL },
+	{ SNDRV_CHMAP_FR,	FR },
+	{ SNDRV_CHMAP_RL,	RL },
+	{ SNDRV_CHMAP_RR,	RR },
+	{ SNDRV_CHMAP_LFE,	LFE },
+	{ SNDRV_CHMAP_FC,	FC },
+	{ SNDRV_CHMAP_RLC,	RLC },
+	{ SNDRV_CHMAP_RRC,	RRC },
+	{ SNDRV_CHMAP_RC,	RC },
+	{ SNDRV_CHMAP_FLC,	FLC },
+	{ SNDRV_CHMAP_FRC,	FRC },
+	{} /* terminator */
+};
+
+/*
+ * cea Speaker allocation structure
+ */
+struct hdmi_codec_cea_spk_alloc {
+	int ca_index;
+	int speakers[HDMI_MAX_SPEAKERS];
+
+	/* Derived values, computed during init */
+	int channels;
+	int spk_mask;
+	int spk_na_mask;
+};
+
+/*
+ * This is an ordered list!
+ *
+ * The preceding ones have better chances to be selected by
+ * hdmi_channel_allocation().
+ */
+static struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = {
+/*			  channel:   7     6    5    4    3     2    1    0  */
+{ .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
+				 /* 2.1 */
+{ .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
+				 /* Dolby Surround */
+{ .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
+				 /* surround51 */
+{ .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
+				 /* surround40 */
+{ .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
+				 /* surround41 */
+{ .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
+				 /* surround50 */
+{ .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
+				 /* 6.1 */
+{ .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+				 /* surround71 */
+{ .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+
+{ .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
+{ .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
+{ .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
+{ .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+};
+
 struct hdmi_codec_priv {
 	struct hdmi_codec_pdata hcd;
 	struct snd_soc_dai_driver *daidrv;
@@ -32,6 +157,7 @@ struct hdmi_codec_priv {
 	struct snd_pcm_substream *current_stream;
 	struct snd_pcm_hw_constraint_list ratec;
 	uint8_t eld[MAX_ELD_BYTES];
+	unsigned int chmap[HDMI_MAX_SPEAKERS];
 };
 
 static const struct snd_soc_dapm_widget hdmi_widgets[] = {
@@ -70,6 +196,201 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
+static int hdmi_codec_chmap_ctl_info(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = HDMI_MAX_SPEAKERS;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = SNDRV_CHMAP_LAST;
+
+	return 0;
+}
+
+static int hdmi_codec_spk_mask_from_alloc(int spk_alloc)
+{
+	int i;
+	int spk_mask = hdmi_codec_eld_spk_alloc_bits[0];
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) {
+		if (spk_alloc & (1 << i))
+			spk_mask |= hdmi_codec_eld_spk_alloc_bits[i];
+	}
+
+	return spk_mask;
+}
+
+static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
+	int i;
+
+	memset(ucontrol->value.integer.value, 0,
+	       sizeof(ucontrol->value.integer.value));
+
+	mutex_lock(&hcp->current_stream_lock);
+	if (hcp->current_stream)
+		for (i = 0; i < HDMI_MAX_SPEAKERS; i++)
+			ucontrol->value.integer.value[i] = hcp->chmap[i];
+
+	mutex_unlock(&hcp->current_stream_lock);
+
+	return 0;
+}
+
+/* From speaker bit mask to ALSA API channel position */
+static int snd_hdac_spk_to_chmap(int spk)
+{
+	struct hdmi_codec_channel_map_table *t = hdmi_codec_map_table;
+
+	for (; t->map; t++) {
+		if (t->spk_mask == spk)
+			return t->map;
+	}
+
+	return 0;
+}
+
+/**
+ * hdmi_codec_cea_init_channel_alloc:
+ * Compute derived values in hdmi_codec_channel_alloc[].
+ * spk_na_mask is used to store unused channels in mid of the channel
+ * allocations. These particular channels are then considered as active channels
+ * For instance:
+ *    CA_ID 0x02: CA =  (FL, FR, 0, FC) => spk_na_mask = 0x04, channels = 4
+ *    CA_ID 0x04: CA =  (FL, FR, 0, 0, RC) => spk_na_mask = 0x03C, channels = 5
+ */
+static void hdmi_codec_cea_init_channel_alloc(void)
+{
+	int i, j, k, last;
+	struct hdmi_codec_cea_spk_alloc *p;
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++) {
+		p = hdmi_codec_channel_alloc + i;
+		p->spk_mask = 0;
+		p->spk_na_mask = 0;
+		last = HDMI_MAX_SPEAKERS;
+		for (j = 0, k = 7; j < HDMI_MAX_SPEAKERS; j++, k--) {
+			if (p->speakers[j]) {
+				p->spk_mask |= p->speakers[j];
+				if (last == HDMI_MAX_SPEAKERS)
+					last = j;
+			} else if (last != HDMI_MAX_SPEAKERS) {
+				p->spk_na_mask |= 1 << k;
+			}
+		}
+		p->channels = 8 - last;
+	}
+}
+
+static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp,
+					     unsigned char channels)
+{
+	int i, spk_alloc, spk_mask;
+	struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc;
+
+	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
+	spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) {
+		if (cap->channels != channels)
+			continue;
+		if (!(cap->spk_mask == (spk_mask & cap->spk_mask)))
+			continue;
+		return i;
+	}
+
+	return -EINVAL;
+}
+
+static void hdmi_cea_alloc_to_tlv_chmap(struct hdmi_codec_cea_spk_alloc *cap,
+					unsigned int *chmap)
+{
+	int count = 0;
+	int c, spk;
+
+	/* Detect unused channels in cea caps, tag them as N/A channel in TLV */
+	for (c = 0; c < HDMI_MAX_SPEAKERS; c++) {
+		spk = cap->speakers[7 - c];
+		if (cap->spk_na_mask & BIT(c))
+			chmap[count++] = SNDRV_CHMAP_NA;
+		else
+			chmap[count++] = snd_hdac_spk_to_chmap(spk);
+	}
+}
+
+static int hdmi_codec_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
+				    unsigned int size, unsigned int __user *tlv)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
+	unsigned int __user *dst;
+	int chs, count = 0;
+	int num_ca = ARRAY_SIZE(hdmi_codec_channel_alloc);
+	unsigned long max_chs;
+	int spk_alloc, spk_mask;
+
+	if (size < 8)
+		return -ENOMEM;
+
+	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
+		return -EFAULT;
+	size -= 8;
+	dst = tlv + 2;
+
+	spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
+	spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
+
+	max_chs = hweight_long(spk_mask);
+
+	for (chs = 2; chs <= max_chs; chs++) {
+		int i;
+		struct hdmi_codec_cea_spk_alloc *cap;
+
+		cap = hdmi_codec_channel_alloc;
+		for (i = 0; i < num_ca; i++, cap++) {
+			int chs_bytes = chs * 4;
+			unsigned int tlv_chmap[HDMI_MAX_SPEAKERS];
+
+			if (cap->channels != chs)
+				continue;
+
+			if (!(cap->spk_mask == (spk_mask & cap->spk_mask)))
+				continue;
+
+			/*
+			 * Channel mapping is fixed as hdmi codec capability
+			 * is not know.
+			 */
+			if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
+			    put_user(chs_bytes, dst + 1))
+				return -EFAULT;
+
+			dst += 2;
+			size -= 8;
+			count += 8;
+
+			if (size < chs_bytes)
+				return -ENOMEM;
+
+			size -= chs_bytes;
+			count += chs_bytes;
+			hdmi_cea_alloc_to_tlv_chmap(cap, tlv_chmap);
+
+			if (copy_to_user(dst, tlv_chmap, chs_bytes))
+				return -EFAULT;
+			dst += chs;
+		}
+	}
+
+	if (put_user(count, tlv + 1))
+		return -EFAULT;
+
+	return 0;
+}
+
 static const struct snd_kcontrol_new hdmi_controls[] = {
 	{
 		.access = SNDRV_CTL_ELEM_ACCESS_READ |
@@ -79,6 +400,17 @@ static const struct snd_kcontrol_new hdmi_controls[] = {
 		.info = hdmi_eld_ctl_info,
 		.get = hdmi_eld_ctl_get,
 	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			  SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+			  SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK |
+			  SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "Playback Channel Map",
+		.info = hdmi_codec_chmap_ctl_info,
+		.get = hdmi_codec_chmap_ctl_get,
+		.tlv.c = hdmi_codec_chmap_ctl_tlv,
+	},
 };
 
 static int hdmi_codec_new_stream(struct snd_pcm_substream *substream,
@@ -164,7 +496,7 @@ static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
 			.dig_subframe = { 0 },
 		}
 	};
-	int ret;
+	int ret, idx;
 
 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
 		params_width(params), params_rate(params),
@@ -191,6 +523,16 @@ static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
 	hp.cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
 	hp.cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
 
+	/* Select a channel allocation that matches with ELD and pcm channels */
+	idx = hdmi_codec_get_ch_alloc_table_idx(hcp, hp.cea.channels);
+	if (idx < 0) {
+		dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",
+			ret);
+		return idx;
+	}
+	hp.cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_index;
+	hdmi_cea_alloc_to_tlv_chmap(&hdmi_codec_channel_alloc[idx], hcp->chmap);
+
 	hp.sample_width = params_width(params);
 	hp.sample_rate = params_rate(params);
 	hp.channels = params_channels(params);
@@ -407,6 +749,8 @@ static int hdmi_codec_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	hdmi_codec_cea_init_channel_alloc();
+
 	dev_set_drvdata(dev, hcp);
 	return 0;
 }
