diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a73d6ca0a906..1c53e337ecb2 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -278,6 +278,9 @@ enum {
 /* Defines for Nvidia HDA support */
 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
+#define NVIDIA_HDA_ISTRM_COH          0x4d
+#define NVIDIA_HDA_OSTRM_COH          0x4c
+#define NVIDIA_HDA_ENABLE_COHBIT      0x01
 
 /* Defines for Intel SCH HDA snoop control */
 #define INTEL_SCH_HDA_DEVC      0x78
@@ -900,6 +903,12 @@ static void azx_init_pci(struct azx *chip)
 		update_pci_byte(chip->pci,
 				NVIDIA_HDA_TRANSREG_ADDR,
 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
+		update_pci_byte(chip->pci,
+				NVIDIA_HDA_ISTRM_COH,
+				0x01, NVIDIA_HDA_ENABLE_COHBIT);
+		update_pci_byte(chip->pci,
+				NVIDIA_HDA_OSTRM_COH,
+				0x01, NVIDIA_HDA_ENABLE_COHBIT);
 		break;
 	case AZX_DRIVER_SCH:
 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b80e725432f0..909f1c101c95 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -952,7 +952,7 @@ static void alc_subsystem_id(struct hda_codec *codec,
 					    tmp | 0x2010);
 			break;
 		case 0x10ec0888:
-			alc888_coef_init(codec);
+			/*alc888_coef_init(codec);*/ /* called in alc_init() */
 			break;
 		case 0x10ec0267:
 		case 0x10ec0268:
@@ -2439,6 +2439,8 @@ static int alc_init(struct hda_codec *codec)
 	unsigned int i;
 
 	alc_fix_pll(codec);
+	if (codec->vendor_id == 0x10ec0888)
+		alc888_coef_init(codec);
 
 	for (i = 0; i < spec->num_init_verbs; i++)
 		snd_hda_sequence_write(codec, spec->init_verbs[i]);
@@ -8426,8 +8428,6 @@ static int patch_alc883(struct hda_codec *codec)
 	codec->patch_ops = alc_patch_ops;
 	if (board_config == ALC883_AUTO)
 		spec->init_hook = alc883_auto_init;
-	else if (codec->vendor_id == 0x10ec0888)
-		spec->init_hook = alc888_coef_init;
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	if (!spec->loopback.amplist)