[PATCH] ALSA: hda: Add Lisuan HDMI controller and codec support

[raoxu]

From: Xu Rao <raoxu@xxxxxxxxxxxxx>

Lisuan GPUs expose an HD-audio controller at PCI ID 4c54:5010 and an
HDMI/DP codec with codec ID 0x4c545020.  Neither ID is currently matched
by the HDA stack, leaving HDMI/DP audio unavailable on these devices.

The existing downstream support uses the generic HDMI codec path and
attaches no Lisuan-specific capability flags to the controller.  Its
dedicated AZX driver type only changes the short driver name.

Use the corresponding generic upstream paths instead: bind 4c54:5010 to
AZX_DRIVER_GENERIC, register 0x4c545020 as MODEL_GENERIC, and add the
Lisuan codec vendor name.  This keeps the enablement minimal and avoids
a vendor-only AZX driver type with no vendor-specific behavior.

Signed-off-by: Xu Rao <raoxu@xxxxxxxxxxxxx>
---
 sound/hda/codecs/hdmi/hdmi.c  | 1 +
 sound/hda/controllers/intel.c | 2 ++
 sound/hda/core/device.c       | 1 +
 3 files changed, 4 insertions(+)

diff --git a/sound/hda/codecs/hdmi/hdmi.c b/sound/hda/codecs/hdmi/hdmi.c
index a4a2f2f0540c..1be12dfaf52d 100644
--- a/sound/hda/codecs/hdmi/hdmi.c
+++ b/sound/hda/codecs/hdmi/hdmi.c
@@ -2346,6 +2346,7 @@ static const struct hda_device_id snd_hda_id_generichdmi[] = {
 	HDA_CODEC_ID_MODEL(0x1d179f8e, "KX-7000 HDMI/DP",	MODEL_GF),
 	HDA_CODEC_ID_MODEL(0x1d179f8f, "KX-7000 HDMI/DP",	MODEL_GF),
 	HDA_CODEC_ID_MODEL(0x1d179f90, "KX-7000 HDMI/DP",	MODEL_GF),
+	HDA_CODEC_ID_MODEL(0x4c545020, "Lisuan HDMI/DP",	MODEL_GENERIC),
 	HDA_CODEC_ID_MODEL(0x67663d82, "Arise 82 HDMI/DP",	MODEL_GF),
 	HDA_CODEC_ID_MODEL(0x67663d83, "Arise 83 HDMI/DP",	MODEL_GF),
 	HDA_CODEC_ID_MODEL(0x67663d84, "Arise 84 HDMI/DP",	MODEL_GF),
diff --git a/sound/hda/controllers/intel.c b/sound/hda/controllers/intel.c
index 28c55c5a2d2e..eb3a5b28e9f5 100644
--- a/sound/hda/controllers/intel.c
+++ b/sound/hda/controllers/intel.c
@@ -2838,6 +2838,8 @@ static const struct pci_device_id azx_ids[] = {
 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
 	{ PCI_VDEVICE(LOONGSON, PCI_DEVICE_ID_LOONGSON_HDMI),
 	  .driver_data = AZX_DRIVER_LOONGSON | AZX_DCAPS_NO_TCSEL },
+	/* Lisuan HD-audio */
+	{ PCI_DEVICE(0x4c54, 0x5010), .driver_data = AZX_DRIVER_GENERIC },
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, azx_ids);
diff --git a/sound/hda/core/device.c b/sound/hda/core/device.c
index 160c8d0453b0..44bd74133479 100644
--- a/sound/hda/core/device.c
+++ b/sound/hda/core/device.c
@@ -663,6 +663,7 @@ static const struct hda_vendor_id hda_vendor_ids[] = {
 	{ 0x1af4, "QEMU" },
 	{ 0x1fa8, "Senarytech" },
 	{ 0x434d, "C-Media" },
+	{ 0x4c54, "Lisuan" },
 	{ 0x8086, "Intel" },
 	{ 0x8384, "SigmaTel" },
 	{} /* terminator */
--
2.50.1