diff --git a/sys/dev/sound/pci/hda/hdac.h b/sys/dev/sound/pci/hda/hdac.h
--- a/sys/dev/sound/pci/hda/hdac.h
+++ b/sys/dev/sound/pci/hda/hdac.h
@@ -883,6 +883,7 @@
 #define HDA_CODEC_NVIDIATEGRA124 HDA_CODEC_CONSTRUCT(NVIDIA, 0x0028)
 #define HDA_CODEC_NVIDIATEGRA210 HDA_CODEC_CONSTRUCT(NVIDIA, 0x0029)
 #define HDA_CODEC_NVIDIAMCP67	HDA_CODEC_CONSTRUCT(NVIDIA, 0x0067)
+#define HDA_CODEC_NVIDIAGM204	HDA_CODEC_CONSTRUCT(NVIDIA, 0x0071)
 #define HDA_CODEC_NVIDIAMCP73	HDA_CODEC_CONSTRUCT(NVIDIA, 0x8001)
 #define HDA_CODEC_NVIDIAXXXX	HDA_CODEC_CONSTRUCT(NVIDIA, 0xffff)
 
diff --git a/sys/dev/sound/pci/hda/hdacc.c b/sys/dev/sound/pci/hda/hdacc.c
--- a/sys/dev/sound/pci/hda/hdacc.c
+++ b/sys/dev/sound/pci/hda/hdacc.c
@@ -358,6 +358,7 @@
 	{ HDA_CODEC_NVIDIAMCP78_3, 0,	"NVIDIA MCP78" },
 	{ HDA_CODEC_NVIDIAMCP78_4, 0,	"NVIDIA MCP78" },
 	{ HDA_CODEC_NVIDIAMCP7A, 0,	"NVIDIA MCP7A" },
+	{ HDA_CODEC_NVIDIAGM204, 0,	"NVIDIA GM204" },
 	{ HDA_CODEC_NVIDIAGT220, 0,	"NVIDIA GT220" },
 	{ HDA_CODEC_NVIDIAGT21X, 0,	"NVIDIA GT21x" },
 	{ HDA_CODEC_NVIDIAMCP89, 0,	"NVIDIA MCP89" },