diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index 13d98e6..74e520f 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -230,6 +230,14 @@ struct uac1_output_terminal_descriptor {
 #define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER	0x306
 #define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER	0x307
 
+/* Terminals - 2.4 Bi-directional Terminal Types */
+#define UAC_BIDIR_TERMINAL_UNDEFINED			0x400
+#define UAC_BIDIR_TERMINAL_HANDSET			0x401
+#define UAC_BIDIR_TERMINAL_HEADSET			0x402
+#define UAC_BIDIR_TERMINAL_SPEAKER_PHONE		0x403
+#define UAC_BIDIR_TERMINAL_ECHO_SUPPRESSING		0x404
+#define UAC_BIDIR_TERMINAL_ECHO_CANCELING		0x405
+
 /* Set bControlSize = 2 as default setting */
 #define UAC_DT_FEATURE_UNIT_SIZE(ch)		(7 + ((ch) + 1) * 2)
 
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index d39458a..69f9b10 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -1858,7 +1858,9 @@ int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device)
 	if (!kctl)
 		return -ENOMEM;
 	kctl->id.device = device;
-	snd_ctl_add(emu->card, kctl);
+	err = snd_ctl_add(emu->card, kctl);
+	if (err < 0)
+		return err;
 
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024);
 
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 73a67bc..e3fb9c6 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1068,11 +1068,19 @@ static int snd_fm801_mixer(struct fm801 *chip)
 		if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
 			return err;
 	}
-	for (i = 0; i < FM801_CONTROLS; i++)
-		snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
+	for (i = 0; i < FM801_CONTROLS; i++) {
+		err = snd_ctl_add(chip->card,
+			snd_ctl_new1(&snd_fm801_controls[i], chip));
+		if (err < 0)
+			return err;
+	}
 	if (chip->multichannel) {
-		for (i = 0; i < FM801_CONTROLS_MULTI; i++)
-			snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
+		for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
+			err = snd_ctl_add(chip->card,
+				snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
+			if (err < 0)
+				return err;
+		}
 	}
 	return 0;
 }
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index dbf9910..e7fcfc3 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -958,6 +958,8 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x8079, "HP EliteBook 840 G3", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x807C, "HP EliteBook 820 G3", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x80FD, "HP ProBook 640 G2", CXT_FIXUP_HP_DOCK),
+	SND_PCI_QUIRK(0x103c, 0x83b3, "HP EliteBook 830 G5", CXT_FIXUP_HP_DOCK),
+	SND_PCI_QUIRK(0x103c, 0x83d3, "HP ProBook 640 G4", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
 	SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
 	SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index d64dcb9..e9bd33e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -793,6 +793,9 @@ static inline void alc_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
 
+	if (!snd_hda_get_bool_hint(codec, "shutup"))
+		return; /* disabled explicitly by hints */
+
 	if (spec && spec->shutup)
 		spec->shutup(codec);
 	else
diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index 9655b08..6c85f13 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -1016,6 +1016,10 @@ static int snd_lx6464es_create(struct snd_card *card,
 
 	/* dsp port */
 	chip->port_dsp_bar = pci_ioremap_bar(pci, 2);
+	if (!chip->port_dsp_bar) {
+		dev_err(card->dev, "cannot remap PCI memory region\n");
+		goto remap_pci_failed;
+	}
 
 	err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq,
 				   IRQF_SHARED, KBUILD_MODNAME, chip);
@@ -1055,6 +1059,9 @@ static int snd_lx6464es_create(struct snd_card *card,
 	free_irq(pci->irq, chip);
 
 request_irq_failed:
+	iounmap(chip->port_dsp_bar);
+
+remap_pci_failed:
 	pci_release_regions(pci);
 
 request_regions_failed:
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index a8abb15..7fbdb70 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -1188,6 +1188,7 @@ SONICVIBES_SINGLE("Joystick Speed", 0, SV_IREG_GAME_PORT, 1, 15, 0);
 static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic)
 {
 	struct gameport *gp;
+	int err;
 
 	sonic->gameport = gp = gameport_allocate_port();
 	if (!gp) {
@@ -1203,7 +1204,10 @@ static int snd_sonicvibes_create_gameport(struct sonicvibes *sonic)
 
 	gameport_register_port(gp);
 
-	snd_ctl_add(sonic->card, snd_ctl_new1(&snd_sonicvibes_game_control, sonic));
+	err = snd_ctl_add(sonic->card,
+		snd_ctl_new1(&snd_sonicvibes_game_control, sonic));
+	if (err < 0)
+		return err;
 
 	return 0;
 }
@@ -1515,7 +1519,11 @@ static int snd_sonic_probe(struct pci_dev *pci,
 		return err;
 	}
 
-	snd_sonicvibes_create_gameport(sonic);
+	err = snd_sonicvibes_create_gameport(sonic);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
 
 	if ((err = snd_card_register(card)) < 0) {
 		snd_card_free(card);
diff --git a/sound/usb/card.h b/sound/usb/card.h
index 1406292..9b41b7d 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -32,6 +32,7 @@ struct audioformat {
 	struct snd_pcm_chmap_elem *chmap; /* (optional) channel map */
 	bool dsd_dop;			/* add DOP headers in case of DSD samples */
 	bool dsd_bitrev;		/* reverse the bits of each DSD sample */
+	bool dsd_raw;			/* altsetting is raw DSD */
 };
 
 struct snd_usb_substream;
diff --git a/sound/usb/format.c b/sound/usb/format.c
index 1f7a74a..fd13ac1 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -64,8 +64,11 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
 		sample_width = fmt->bBitResolution;
 		sample_bytes = fmt->bSubslotSize;
 
-		if (format & UAC2_FORMAT_TYPE_I_RAW_DATA)
+		if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) {
 			pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL;
+			/* flag potentially raw DSD capable altsettings */
+			fp->dsd_raw = true;
+		}
 
 		format <<= 1;
 		break;
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 8c3568d..ca963e9 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1653,11 +1653,11 @@ static void build_feature_ctl_badd(struct usb_mixer_interface *mixer,
 			NULL, NULL, unitid, 0, 0);
 }
 
-static void get_connector_control_name(struct mixer_build *state,
+static void get_connector_control_name(struct usb_mixer_interface *mixer,
 				       struct usb_audio_term *term,
 				       bool is_input, char *name, int name_size)
 {
-	int name_len = get_term_name(state->chip, term, name, name_size, 0);
+	int name_len = get_term_name(mixer->chip, term, name, name_size, 0);
 
 	if (name_len == 0)
 		strlcpy(name, "Unknown", name_size);
@@ -1674,7 +1674,7 @@ static void get_connector_control_name(struct mixer_build *state,
 }
 
 /* Build a mixer control for a UAC connector control (jack-detect) */
-static void build_connector_control(struct mixer_build *state,
+static void build_connector_control(struct usb_mixer_interface *mixer,
 				    struct usb_audio_term *term, bool is_input)
 {
 	struct snd_kcontrol *kctl;
@@ -1683,7 +1683,7 @@ static void build_connector_control(struct mixer_build *state,
 	cval = kzalloc(sizeof(*cval), GFP_KERNEL);
 	if (!cval)
 		return;
-	snd_usb_mixer_elem_init_std(&cval->head, state->mixer, term->id);
+	snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id);
 	/*
 	 * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the
 	 * number of channels connected.
@@ -1694,7 +1694,7 @@ static void build_connector_control(struct mixer_build *state,
 	 * This boolean ctl will simply report if any channels are connected
 	 * or not.
 	 */
-	if (state->mixer->protocol == UAC_VERSION_2)
+	if (mixer->protocol == UAC_VERSION_2)
 		cval->control = UAC2_TE_CONNECTOR;
 	else /* UAC_VERSION_3 */
 		cval->control = UAC3_TE_INSERTION;
@@ -1705,11 +1705,11 @@ static void build_connector_control(struct mixer_build *state,
 	cval->max = 1;
 	kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval);
 	if (!kctl) {
-		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
+		usb_audio_err(mixer->chip, "cannot malloc kcontrol\n");
 		kfree(cval);
 		return;
 	}
-	get_connector_control_name(state, term, is_input, kctl->id.name,
+	get_connector_control_name(mixer, term, is_input, kctl->id.name,
 				   sizeof(kctl->id.name));
 	kctl->private_free = snd_usb_mixer_elem_free;
 	snd_usb_mixer_add_control(&cval->head, kctl);
@@ -2042,7 +2042,7 @@ static int parse_audio_input_terminal(struct mixer_build *state, int unitid,
 
 	/* Check for jack detection. */
 	if (uac_v2v3_control_is_readable(bmctls, control))
-		build_connector_control(state, &iterm, true);
+		build_connector_control(state->mixer, &iterm, true);
 
 	return 0;
 }
@@ -2918,6 +2918,23 @@ static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer,
 				       UAC3_BADD_FU_ID7, map->map);
 	}
 
+	/* Insertion Control */
+	if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) {
+		struct usb_audio_term iterm, oterm;
+
+		/* Input Term - Insertion control */
+		memset(&iterm, 0, sizeof(iterm));
+		iterm.id = UAC3_BADD_IT_ID4;
+		iterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+		build_connector_control(mixer, &iterm, true);
+
+		/* Output Term - Insertion control */
+		memset(&oterm, 0, sizeof(oterm));
+		oterm.id = UAC3_BADD_OT_ID3;
+		oterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+		build_connector_control(mixer, &oterm, false);
+	}
+
 	return 0;
 }
 
@@ -2990,7 +3007,7 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
 
 			if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),
 							 UAC2_TE_CONNECTOR)) {
-				build_connector_control(&state, &state.oterm,
+				build_connector_control(state.mixer, &state.oterm,
 							false);
 			}
 		} else {  /* UAC_VERSION_3 */
@@ -3017,7 +3034,7 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
 
 			if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls),
 							 UAC3_TE_INSERTION)) {
-				build_connector_control(&state, &state.oterm,
+				build_connector_control(state.mixer, &state.oterm,
 							false);
 			}
 		}
@@ -3321,10 +3338,12 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
 		err = snd_usb_mixer_controls(mixer);
 		if (err < 0)
 			goto _error;
-		err = snd_usb_mixer_status_create(mixer);
-		if (err < 0)
-			goto _error;
 	}
+
+	err = snd_usb_mixer_status_create(mixer);
+	if (err < 0)
+		goto _error;
+
 	err = create_keep_iface_ctl(mixer);
 	if (err < 0)
 		goto _error;
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 0e37e35..8aac48f 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3277,6 +3277,10 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
 	}
 },
 
+/* disabled due to regression for other devices;
+ * see https://bugzilla.kernel.org/show_bug.cgi?id=199905
+ */
+#if 0
 {
 	/*
 	 * Nura's first gen headphones use Cambridge Silicon Radio's vendor
@@ -3324,6 +3328,7 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
 		}
 	}
 },
+#endif /* disabled */
 
 {
 	/*
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index f4b6917..02b6cc0 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1362,16 +1362,12 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */
 	case USB_ID(0x20b1, 0x0002): /* Wyred 4 Sound DAC-2 DSD */
 	case USB_ID(0x20b1, 0x2004): /* Matrix Audio X-SPDIF 2 */
-	case USB_ID(0x20b1, 0x3008): /* iFi Audio micro/nano iDSD */
 	case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
 	case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
 	case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
 	case USB_ID(0x22d9, 0x0436): /* OPPO Sonica */
 	case USB_ID(0x22d9, 0x0461): /* OPPO UDP-205 */
 	case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */
-	case USB_ID(0x25ce, 0x001f): /* Mytek Brooklyn DAC */
-	case USB_ID(0x25ce, 0x0021): /* Mytek Manhattan DAC */
-	case USB_ID(0x25ce, 0x8025): /* Mytek Brooklyn DAC+ */
 	case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
 		if (fp->altsetting == 2)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
@@ -1389,7 +1385,6 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x20b1, 0x3021): /* Eastern El. MiniMax Tube DAC Supreme */
 	case USB_ID(0x20b1, 0x3023): /* Aune X1S 32BIT/384 DSD DAC */
 	case USB_ID(0x20b1, 0x302d): /* Unison Research Unico CD Due */
-	case USB_ID(0x20b1, 0x3036): /* Holo Springs Level 3 R2R DAC */
 	case USB_ID(0x20b1, 0x307b): /* CH Precision C1 DAC */
 	case USB_ID(0x20b1, 0x3086): /* Singxer F-1 converter board */
 	case USB_ID(0x22d9, 0x0426): /* OPPO HA-2 */
@@ -1443,6 +1438,20 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 	}
 
+	/* Mostly generic method to detect many DSD-capable implementations -
+	 * from XMOS/Thesycon
+	 */
+	switch (USB_ID_VENDOR(chip->usb_id)) {
+	case 0x20b1:  /* XMOS based devices */
+	case 0x25ce:  /* Mytek devices */
+		if (fp->dsd_raw)
+			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+		break;
+	default:
+		break;
+
+	}
+
 	return 0;
 }