[PATCH 5.4 013/214] ALSA: hda/hdmi: Add quirk to force connectivity

Greg Kroah-Hartman
2020-09-01T16:35:09Z

From: Kai-Heng Feng <kai.heng.feng@canonical.com>

[ Upstream commit cd72c317a0a11f64225b9a3f1fe503bb8c7327b5 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/pci/hda/patch_hdmi.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 908b68fda24c9..a9559fb29e209 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -176,6 +176,7 @@ struct hdmi_spec {
bool use_jack_detect; /* jack detection enabled */
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 */

@@ -1711,7 +1712,8 @@ 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;

/*
@@ -1815,11 +1817,18 @@ 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) {
@@ -1827,6 +1836,11 @@ 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
--
2.25.1