/*
  * Get the no devices that can be connected to a port on the Pin widget.
  */
-static int hdac_hdmi_get_port_len(struct hdac_ext_device *hdac, hda_nid_t nid)
+static int hdac_hdmi_get_port_len(struct hdac_ext_device *edev, hda_nid_t nid)
 {
        unsigned int caps;
        unsigned int type, param;
 
-       caps = get_wcaps(&hdac->hdac, nid);
+       caps = get_wcaps(&edev->hdac, nid);
        type = get_wcaps_type(caps);
 
        if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
                return 0;
 
-       param = snd_hdac_read_parm_uncached(&hdac->hdac, nid,
+       param = snd_hdac_read_parm_uncached(&edev->hdac, nid,
                                        AC_PAR_DEVLIST_LEN);
        if (param == -1)
                return param;
  * id selected on the pin. Return 0 means the first port entry
  * is selected or MST is not supported.
  */
-static int hdac_hdmi_port_select_get(struct hdac_ext_device *hdac,
+static int hdac_hdmi_port_select_get(struct hdac_ext_device *edev,
                                        struct hdac_hdmi_port *port)
 {
-       return snd_hdac_codec_read(&hdac->hdac, port->pin->nid,
+       return snd_hdac_codec_read(&edev->hdac, port->pin->nid,
                                0, AC_VERB_GET_DEVICE_SEL, 0);
 }
 
  * Sets the selected port entry for the configuring Pin widget verb.
  * returns error if port set is not equal to port get otherwise success
  */
-static int hdac_hdmi_port_select_set(struct hdac_ext_device *hdac,
+static int hdac_hdmi_port_select_set(struct hdac_ext_device *edev,
                                        struct hdac_hdmi_port *port)
 {
        int num_ports;
                return 0;
 
        /* AC_PAR_DEVLIST_LEN is 0 based. */
-       num_ports = hdac_hdmi_get_port_len(hdac, port->pin->nid);
+       num_ports = hdac_hdmi_get_port_len(edev, port->pin->nid);
 
        if (num_ports < 0)
                return -EIO;
        if (num_ports + 1  < port->id)
                return 0;
 
-       snd_hdac_codec_write(&hdac->hdac, port->pin->nid, 0,
+       snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
                        AC_VERB_SET_DEVICE_SEL, port->id);
 
-       if (port->id != hdac_hdmi_port_select_get(hdac, port))
+       if (port->id != hdac_hdmi_port_select_get(edev, port))
                return -EIO;
 
-       dev_dbg(&hdac->hdac.dev, "Selected the port=%d\n", port->id);
+       dev_dbg(&edev->hdac.dev, "Selected the port=%d\n", port->id);
 
        return 0;
 }
 }
 
 static void
-hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid,
+hdac_hdmi_set_dip_index(struct hdac_ext_device *edev, hda_nid_t pin_nid,
                                int packet_index, int byte_index)
 {
        int val;
 
        val = (packet_index << 5) | (byte_index & 0x1f);
 
-       snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+       snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
                                AC_VERB_SET_HDMI_DIP_INDEX, val);
 }
 
        u8 LFEPBL01_LSV36_DM_INH7;
 };
 
-static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
+static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *edev,
                   struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 {
        uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
        struct hdmi_audio_infoframe frame;
        struct hdac_hdmi_pin *pin = port->pin;
        struct dp_audio_infoframe dp_ai;
-       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&hdac->hdac);
+       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdac);
        struct hdac_hdmi_cvt *cvt = pcm->cvt;
        u8 *dip;
        int ret;
        u8 conn_type;
        int channels, ca;
 
-       ca = snd_hdac_channel_allocation(&hdac->hdac, port->eld.info.spk_alloc,
+       ca = snd_hdac_channel_allocation(&edev->hdac, port->eld.info.spk_alloc,
                        pcm->channels, pcm->chmap_set, true, pcm->chmap);
 
        channels = snd_hdac_get_active_channels(ca);
-       hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt->nid, channels);
+       hdmi->chmap.ops.set_channel_count(&edev->hdac, cvt->nid, channels);
 
        snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
                                pcm->channels, pcm->chmap, pcm->chmap_set);
                break;
 
        default:
-               dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n",
+               dev_err(&edev->hdac.dev, "Invalid connection type: %d\n",
                                                conn_type);
                return -EIO;
        }
 
        /* stop infoframe transmission */
-       hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
-       snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+       hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
+       snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
                        AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 
 
        /*  Fill infoframe. Index auto-incremented */
-       hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
+       hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
        if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
                for (i = 0; i < sizeof(buffer); i++)
-                       snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+                       snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
                                AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
        } else {
                for (i = 0; i < sizeof(dp_ai); i++)
-                       snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+                       snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
                                AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
        }
 
        /* Start infoframe */
-       hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
-       snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
+       hdac_hdmi_set_dip_index(edev, pin->nid, 0x0, 0x0);
+       snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
                        AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 
        return 0;
 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
        struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
 {
-       struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
-       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&hdac->hdac);
+       struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
+       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdac);
        struct hdac_hdmi_dai_port_map *dai_map;
        struct hdac_hdmi_port *port;
        struct hdac_hdmi_pcm *pcm;
                return -ENODEV;
 
        if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
-               dev_err(&hdac->hdac.dev,
+               dev_err(&edev->hdac.dev,
                        "device is not configured for this pin:port%d:%d\n",
                                        port->pin->nid, port->id);
                return -ENODEV;
        return 0;
 }
 
-static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *hdac,
+static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *edev,
                                        struct hdac_hdmi_pin *pin,
                                        struct hdac_hdmi_port *port)
 {
-       if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
-               dev_warn(&hdac->hdac.dev,
+       if (!(get_wcaps(&edev->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
+               dev_warn(&edev->hdac.dev,
                        "HDMI: pin %d wcaps %#x does not support connection list\n",
-                       pin->nid, get_wcaps(&hdac->hdac, pin->nid));
+                       pin->nid, get_wcaps(&edev->hdac, pin->nid));
                return -EINVAL;
        }
 
-       if (hdac_hdmi_port_select_set(hdac, port) < 0)
+       if (hdac_hdmi_port_select_set(edev, port) < 0)
                return -EIO;
 
-       port->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
+       port->num_mux_nids = snd_hdac_get_connections(&edev->hdac, pin->nid,
                        port->mux_nids, HDA_MAX_CONNECTIONS);
        if (port->num_mux_nids == 0)
-               dev_warn(&hdac->hdac.dev,
+               dev_warn(&edev->hdac.dev,
                        "No connections found for pin:port %d:%d\n",
                                                pin->nid, port->id);
 
-       dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin:port %d:%d\n",
+       dev_dbg(&edev->hdac.dev, "num_mux_nids %d for pin:port %d:%d\n",
                        port->num_mux_nids, pin->nid, port->id);
 
        return port->num_mux_nids;
 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
                        struct snd_soc_dai *dai)
 {
-       struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
-       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&hdac->hdac);
+       struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
+       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdac);
        struct hdac_hdmi_dai_port_map *dai_map;
        struct hdac_hdmi_cvt *cvt;
        struct hdac_hdmi_port *port;
        dai_map = &hdmi->dai_map[dai->id];
 
        cvt = dai_map->cvt;
-       port = hdac_hdmi_get_port_from_cvt(hdac, hdmi, cvt);
+       port = hdac_hdmi_get_port_from_cvt(edev, hdmi, cvt);
 
        /*
         * To make PA and other userland happy.
        if ((!port->eld.monitor_present) ||
                        (!port->eld.eld_valid)) {
 
-               dev_warn(&hdac->hdac.dev,
+               dev_warn(&edev->hdac.dev,
                        "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
                        port->eld.monitor_present, port->eld.eld_valid,
                        port->pin->nid, port->id);
 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
                struct snd_soc_dai *dai)
 {
-       struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
-       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&hdac->hdac);
+       struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
+       struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(&edev->hdac);
        struct hdac_hdmi_dai_port_map *dai_map;
        struct hdac_hdmi_pcm *pcm;