ALSA: hda/hdmi: Add quirk to force connectivity

HDMI on some platforms doesn't enable audio support because its Port
Connectivity [31:30] is set to AC_JACK_PORT_NONE:
Node 0x05 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x00 0x00]
  Pincap 0x0b000094: OUT Detect HBR HDMI DP
  Pin Default 0x58560010: [N/A] Digital Out at Int HDMI
    Conn = Digital, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Power states:  D0 D3 EPSS
  Power: setting=D0, actual=D0
  Devices: 0
  Connection: 3
     0x02 0x03* 0x04

For now, use a quirk to force connectivity based on SSID. If there are
more platforms affected by the same issue, we can eye for a more generic
solution.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200804155836.16252-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index cccf6d5..4bbd12d 100644 (file)
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -165,6 +165,7 @@ struct hdmi_spec {
 
        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 */
 
@@ -1758,7 +1759,8 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
         * 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)
+       if (get_defcfg_connect(config) == AC_JACK_PORT_NONE &&
+           !spec->force_connect)
                return 0;
 
        /*
@@ -1860,11 +1862,18 @@ static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
        return 0;
 }
 
+static const struct snd_pci_quirk force_connect_list[] = {
+       SND_PCI_QUIRK(0x103c, 0x871a, "HP", 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) {
@@ -1872,6 +1881,11 @@ static int hdmi_parse_codec(struct hda_codec *codec)
                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