diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 17cce4c50e8dc5453dca0d1c6df34f9220d90b72..e2a5d30c88956077273ce8022482fd88b1fe8470 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -897,7 +897,7 @@ config HID_PLAYSTATION
 	select CRC32
 	select POWER_SUPPLY
 	help
-	  Provides support for Sony PS5 controllers including support for
+	  Provides support for Sony PS4/PS5 controllers including support for
 	  its special functionalities e.g. touchpad, lights and motion
 	  sensors.
 
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_client.c b/drivers/hid/amd-sfh-hid/amd_sfh_client.c
index 8275bba636119075d6bf9feac28e032d40439fe7..ab125f79408f253c639eda94783a83994e630e41 100644
--- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c
+++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c
@@ -237,6 +237,10 @@ int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata)
 		in_data->sensor_virt_addr[i] = dma_alloc_coherent(dev, sizeof(int) * 8,
 								  &cl_data->sensor_dma_addr[i],
 								  GFP_KERNEL);
+		if (!in_data->sensor_virt_addr[i]) {
+			rc = -ENOMEM;
+			goto cleanup;
+		}
 		cl_data->sensor_sts[i] = SENSOR_DISABLED;
 		cl_data->sensor_requested_cnt[i] = 0;
 		cl_data->cur_hid_dev = i;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 8f58c3c1bec31ffde43bad8fb4bd5348611e84e9..82713ef3aaa64c5c310700c615755c5dab3e4706 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -412,6 +412,7 @@
 #define USB_DEVICE_ID_HP_X2_10_COVER	0x0755
 #define I2C_DEVICE_ID_HP_ENVY_X360_15	0x2d05
 #define I2C_DEVICE_ID_HP_ENVY_X360_15T_DR100	0x29CF
+#define I2C_DEVICE_ID_HP_ENVY_X360_EU0009NV	0x2CF9
 #define I2C_DEVICE_ID_HP_SPECTRE_X360_15	0x2817
 #define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN	0x2544
 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN	0x2706
@@ -995,7 +996,10 @@
 #define USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S	0x8003
 
 #define USB_VENDOR_ID_PLANTRONICS	0x047f
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3210_SERIES	0xc055
 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES	0xc056
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES	0xc057
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES	0xc058
 
 #define USB_VENDOR_ID_PANASONIC		0x04da
 #define USB_DEVICE_ID_PANABOARD_UBT780	0x1044
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 3a93cf04147d1701b580777345661e3063d68c70..9b59e436df0a5c05175625bdbb786f4d751d0283 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -380,6 +380,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
 	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_15T_DR100),
 	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_EU0009NV),
+	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),
 	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN),
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index c6e4a96e882e64e1f21419305f81c1165b14f96f..abf2c95e4d0b0003095e04099f68300d3eb3b6e0 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2548,12 +2548,17 @@ static int hidpp_ff_init(struct hidpp_device *hidpp,
 	struct hid_device *hid = hidpp->hid_dev;
 	struct hid_input *hidinput;
 	struct input_dev *dev;
-	const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
-	const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
+	struct usb_device_descriptor *udesc;
+	u16 bcdDevice;
 	struct ff_device *ff;
 	int error, j, num_slots = data->num_effects;
 	u8 version;
 
+	if (!hid_is_usb(hid)) {
+		hid_err(hid, "device is not USB\n");
+		return -ENODEV;
+	}
+
 	if (list_empty(&hid->inputs)) {
 		hid_err(hid, "no inputs found\n");
 		return -ENODEV;
@@ -2567,6 +2572,8 @@ static int hidpp_ff_init(struct hidpp_device *hidpp,
 	}
 
 	/* Get firmware release */
+	udesc = &(hid_to_usb_dev(hid)->descriptor);
+	bcdDevice = le16_to_cpu(udesc->bcdDevice);
 	version = bcdDevice & 255;
 
 	/* Set supported force feedback capabilities */
diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c
index 5886543b17f347476e3b8c85aea410b5aaec4415..e61dd039354b8f72750855f52da8a0b40d91f304 100644
--- a/drivers/hid/hid-mcp2221.c
+++ b/drivers/hid/hid-mcp2221.c
@@ -1110,12 +1110,19 @@ static int mcp2221_probe(struct hid_device *hdev,
 		return ret;
 	}
 
-	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+	/*
+	 * This driver uses the .raw_event callback and therefore does not need any
+	 * HID_CONNECT_xxx flags.
+	 */
+	ret = hid_hw_start(hdev, 0);
 	if (ret) {
 		hid_err(hdev, "can't start hardware\n");
 		return ret;
 	}
 
+	hid_info(hdev, "USB HID v%x.%02x Device [%s] on %s\n", hdev->version >> 8,
+			hdev->version & 0xff, hdev->name, hdev->phys);
+
 	ret = hid_hw_open(hdev);
 	if (ret) {
 		hid_err(hdev, "can't open device\n");
@@ -1145,8 +1152,7 @@ static int mcp2221_probe(struct hid_device *hdev,
 	mcp->adapter.retries = 1;
 	mcp->adapter.dev.parent = &hdev->dev;
 	snprintf(mcp->adapter.name, sizeof(mcp->adapter.name),
-			"MCP2221 usb-i2c bridge on hidraw%d",
-			((struct hidraw *)hdev->hidraw)->minor);
+			"MCP2221 usb-i2c bridge");
 
 	ret = devm_i2c_add_adapter(&hdev->dev, &mcp->adapter);
 	if (ret) {
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 91a4d3fc30e0802a7e85acc94dbab98ef1d4f753..372cbdd223e09d2d919b40f74fcd2755789b306c 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1967,6 +1967,10 @@ static const struct hid_device_id mt_devices[] = {
 		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
 			USB_VENDOR_ID_ELAN, 0x313a) },
 
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_ELAN, 0x3148) },
+
 	/* Elitegroup panel */
 	{ .driver_data = MT_CLS_SERIAL,
 		MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
diff --git a/drivers/hid/hid-plantronics.c b/drivers/hid/hid-plantronics.c
index e81b7cec2d1248e1600ce90028cad5cf12e5fbb7..3d414ae194acbdaf7f6e6087ea91c7cb3e70fe85 100644
--- a/drivers/hid/hid-plantronics.c
+++ b/drivers/hid/hid-plantronics.c
@@ -198,9 +198,18 @@ static int plantronics_probe(struct hid_device *hdev,
 }
 
 static const struct hid_device_id plantronics_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3210_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
 					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES),
 		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
 	{ }
 };
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index 7b5aef538044a738e58e69092888f18ba4f66660..f399bf0d3c8cc33d117d0b060960e611619acc3c 100644
--- a/drivers/hid/hid-playstation.c
+++ b/drivers/hid/hid-playstation.c
@@ -1916,7 +1916,7 @@ static int dualshock4_get_mac_address(struct dualshock4 *ds4)
 		if (ret != sizeof(ds4->base.mac_address))
 			return -EINVAL;
 
-		ret = 0;
+		return 0;
 	}
 
 err_free:
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 03691cdcfb8e10d2bcd3523528f5f423928e6d69..13125997ab5e39199b02a48954424e473bd15936 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -2355,11 +2355,13 @@ static void motion_send_output_report(struct sony_sc *sc)
 	hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
 }
 
+#ifdef CONFIG_SONY_FF
 static inline void sony_send_output_report(struct sony_sc *sc)
 {
 	if (sc->send_output_report)
 		sc->send_output_report(sc);
 }
+#endif
 
 static void sony_state_worker(struct work_struct *work)
 {
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 634263e4556b03b0eeed3ec7df2cd1c9866de58f..fb538a6c4add80c9c3db9470b17409af5849a06a 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -155,6 +155,9 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
 
+	if (wacom->wacom_wac.features.type == BOOTLOADER)
+		return 0;
+
 	if (size > WACOM_PKGLEN_MAX)
 		return 1;
 
@@ -2785,6 +2788,11 @@ static int wacom_probe(struct hid_device *hdev,
 		return error;
 	}
 
+	if (features->type == BOOTLOADER) {
+		hid_warn(hdev, "Using device in hidraw-only mode");
+		return hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+	}
+
 	error = wacom_parse_and_register(wacom, false);
 	if (error)
 		return error;
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 0f3d57b42684671337ef615b479728629ed148d2..9312d611db8e5e03992281adb4cb45b3f3c7ea19 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -4882,6 +4882,9 @@ static const struct wacom_features wacom_features_0x3dd =
 static const struct wacom_features wacom_features_HID_ANY_ID =
 	{ "Wacom HID", .type = HID_GENERIC, .oVid = HID_ANY_ID, .oPid = HID_ANY_ID };
 
+static const struct wacom_features wacom_features_0x94 =
+	{ "Wacom Bootloader", .type = BOOTLOADER };
+
 #define USB_DEVICE_WACOM(prod)						\
 	HID_DEVICE(BUS_USB, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
 	.driver_data = (kernel_ulong_t)&wacom_features_##prod
@@ -4955,6 +4958,7 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x84) },
 	{ USB_DEVICE_WACOM(0x90) },
 	{ USB_DEVICE_WACOM(0x93) },
+	{ USB_DEVICE_WACOM(0x94) },
 	{ USB_DEVICE_WACOM(0x97) },
 	{ USB_DEVICE_WACOM(0x9A) },
 	{ USB_DEVICE_WACOM(0x9F) },
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 5ca6c06d143be4921873995c00b5665af539f0bc..16f221388563d08d1f4fb0c600493fdecc47ac1c 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -243,6 +243,7 @@ enum {
 	MTTPC,
 	MTTPC_B,
 	HID_GENERIC,
+	BOOTLOADER,
 	MAX_TYPE
 };