Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - support for Nintendo Switch Pro Controllers and Joy-Cons (Daniel J.
   Ogorchock)

 - support for new revision of the NitroKey U2F device firmware (Andrej
   Shadura)

 - LED handling improvements for Sony Playstation5 controllers (Roderick
   Colenbrander)

 - support for Apple 2021 Magic Keyboard (Alex Henrie)

 - other assorted code cleanups and new device ID additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (41 commits)
  HID: nintendo: fix -Werror build
  HID: playstation: require multicolor LED functionality
  HID: u2fzero: properly handle timeouts in usb_submit_urb
  HID: u2fzero: clarify error check and length calculations
  HID: u2fzero: Support NitroKey U2F revision of the device
  HID: wacom: Make use of the helper function devm_add_action_or_reset()
  HID: wacom: Shrink critical section in `wacom_add_shared_data`
  HID: nintendo: prevent needless queueing of the rumble worker
  HID: nintendo: ratelimit subcommands and rumble
  HID: nintendo: improve rumble performance and stability
  HID: nintendo: add IMU support
  HID: nintendo: add support for reading user calibration
  HID: nintendo: add support for charging grip
  HID: nintendo: set controller uniq to MAC
  HID: nintendo: reduce device removal subcommand errors
  HID: nintendo: patch hw version for userspace HID mappings
  HID: nintendo: send subcommands after receiving input report
  HID: nintendo: improve subcommand reliability
  HID: nintendo: add rumble support
  HID: nintendo: add home led support
  ...

Documentation/leds/well-known-leds.txt

@@ -16,6 +16,20 @@ but then try the legacy ones, too.
 
 Notice there's a list of functions in include/dt-bindings/leds/common.h .
 
+* Gamepads and joysticks
+
+Game controllers may feature LEDs to indicate a player number. This is commonly
+used on game consoles in which multiple controllers can be connected to a system.
+The "player LEDs" are then programmed with a pattern to indicate a particular
+player. For example, a game controller with 4 LEDs, may be programmed with "x---"
+to indicate player 1, "-x--" to indicate player 2 etcetera where "x" means on.
+Input drivers can utilize the LED class to expose the individual player LEDs
+of a game controller using the function "player".
+Note: tracking and management of Player IDs is the responsibility of user space,
+though drivers may pick a default value.
+
+Good: "input*:*:player-{1,2,3,4,5}
+
 * Keyboards
   
 Good: "input*:*:capslock"

MAINTAINERS

@@ -13434,6 +13434,12 @@ W:	http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
 F:	Documentation/scsi/NinjaSCSI.rst
 F:	drivers/scsi/nsp32*
 
+NINTENDO HID DRIVER
+M:	Daniel J. Ogorchock <djogorchock@gmail.com>
+L:	linux-input@vger.kernel.org
+S:	Maintained
+F:	drivers/hid/hid-nintendo*
+
 NIOS2 ARCHITECTURE
 M:	Dinh Nguyen <dinguyen@kernel.org>
 S:	Maintained

drivers/hid/Kconfig

@@ -468,6 +468,13 @@ config HID_VIEWSONIC
 	help
 	  Support for ViewSonic/Signotec PD1011 signature pad.
 
+config HID_XIAOMI
+	tristate "Xiaomi"
+	depends on HID
+	help
+	  Adds support for side buttons of Xiaomi Mi Dual Mode Wireless
+	  Mouse Silent Edition.
+
 config HID_GYRATION
 	tristate "Gyration remote control"
 	depends on HID
@@ -731,6 +738,30 @@ config HID_MULTITOUCH
 	  To compile this driver as a module, choose M here: the
 	  module will be called hid-multitouch.
 
+config HID_NINTENDO
+	tristate "Nintendo Joy-Con and Pro Controller support"
+	depends on HID
+	depends on NEW_LEDS
+	depends on LEDS_CLASS
+	select POWER_SUPPLY
+	help
+	Adds support for the Nintendo Switch Joy-Cons and Pro Controller.
+	All controllers support bluetooth, and the Pro Controller also supports
+	its USB mode.
+
+	To compile this driver as a module, choose M here: the
+	module will be called hid-nintendo.
+
+config NINTENDO_FF
+	bool "Nintendo Switch controller force feedback support"
+	depends on HID_NINTENDO
+	select INPUT_FF_MEMLESS
+	help
+	Say Y here if you have a Nintendo Switch controller and want to enable
+	force feedback support for it. This works for both joy-cons and the pro
+	controller. For the pro controller, both rumble motors can be controlled
+	individually.
+
 config HID_NTI
 	tristate "NTI keyboard adapters"
 	help
@@ -868,6 +899,7 @@ config HID_PLANTRONICS
 config HID_PLAYSTATION
 	tristate "PlayStation HID Driver"
 	depends on HID
+	depends on LEDS_CLASS_MULTICOLOR
 	select CRC32
 	select POWER_SUPPLY
 	help

drivers/hid/Makefile

@@ -78,6 +78,7 @@ obj-$(CONFIG_HID_MAYFLASH)	+= hid-mf.o
 obj-$(CONFIG_HID_MICROSOFT)	+= hid-microsoft.o
 obj-$(CONFIG_HID_MONTEREY)	+= hid-monterey.o
 obj-$(CONFIG_HID_MULTITOUCH)	+= hid-multitouch.o
+obj-$(CONFIG_HID_NINTENDO)	+= hid-nintendo.o
 obj-$(CONFIG_HID_NTI)			+= hid-nti.o
 obj-$(CONFIG_HID_NTRIG)		+= hid-ntrig.o
 obj-$(CONFIG_HID_ORTEK)		+= hid-ortek.o
@@ -125,6 +126,7 @@ hid-uclogic-objs		:= hid-uclogic-core.o \
 obj-$(CONFIG_HID_UCLOGIC)	+= hid-uclogic.o
 obj-$(CONFIG_HID_UDRAW_PS3)	+= hid-udraw-ps3.o
 obj-$(CONFIG_HID_LED)		+= hid-led.o
+obj-$(CONFIG_HID_XIAOMI)	+= hid-xiaomi.o
 obj-$(CONFIG_HID_XINMO)		+= hid-xinmo.o
 obj-$(CONFIG_HID_ZEROPLUS)	+= hid-zpff.o
 obj-$(CONFIG_HID_ZYDACRON)	+= hid-zydacron.o

drivers/hid/amd-sfh-hid/amd_sfh_client.c

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *  AMD SFH Client Layer
- *  Copyright 2020 Advanced Micro Devices, Inc.
+ *  Copyright 2020-2021 Advanced Micro Devices, Inc.
  *  Authors: Nehal Bakulchandra Shah <Nehal-Bakulchandra.Shah@amd.com>
  *	     Sandeep Singh <Sandeep.singh@amd.com>
+ *	     Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #include <linux/dma-mapping.h>

drivers/hid/amd-sfh-hid/amd_sfh_hid.c

@@ -2,8 +2,10 @@
 /*
  * AMD MP2 Sensors transport driver
  *
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
  *	    Sandeep Singh <sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 #include <linux/hid.h>
 #include <linux/wait.h>

drivers/hid/amd-sfh-hid/amd_sfh_hid.h

@@ -2,8 +2,10 @@
 /*
  * AMD MP2 Sensors transport driver
  *
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
  *	    Sandeep Singh <sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #ifndef AMDSFH_HID_H

drivers/hid/amd-sfh-hid/amd_sfh_pcie.c

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * AMD MP2 PCIe communication driver
- * Copyright 2020 Advanced Micro Devices, Inc.
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  *
  * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
  *	    Sandeep Singh <Sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #include <linux/bitops.h>
@@ -234,7 +235,7 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 		return -ENOMEM;
 
 	privdata->pdev = pdev;
-	pci_set_drvdata(pdev, privdata);
+	dev_set_drvdata(&pdev->dev, privdata);
 	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
@@ -245,10 +246,13 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 
 	privdata->mmio = pcim_iomap_table(pdev)[2];
 	pci_set_master(pdev);
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (rc) {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-		return rc;
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+		if (rc) {
+			dev_err(&pdev->dev, "failed to set DMA mask\n");
+			return rc;
+		}
 	}
 
 	privdata->cl_data = devm_kzalloc(&pdev->dev, sizeof(struct amdtp_cl_data), GFP_KERNEL);
@@ -266,8 +270,7 @@ static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 
 static int __maybe_unused amd_mp2_pci_resume(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct amd_mp2_dev *mp2 = pci_get_drvdata(pdev);
+	struct amd_mp2_dev *mp2 = dev_get_drvdata(dev);
 	struct amdtp_cl_data *cl_data = mp2->cl_data;
 	struct amd_mp2_sensor_info info;
 	int i, status;
@@ -292,8 +295,7 @@ static int __maybe_unused amd_mp2_pci_resume(struct device *dev)
 
 static int __maybe_unused amd_mp2_pci_suspend(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct amd_mp2_dev *mp2 = pci_get_drvdata(pdev);
+	struct amd_mp2_dev *mp2 = dev_get_drvdata(dev);
 	struct amdtp_cl_data *cl_data = mp2->cl_data;
 	int i, status;
 
@@ -334,3 +336,4 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_AUTHOR("Shyam Sundar S K <Shyam-sundar.S-k@amd.com>");
 MODULE_AUTHOR("Sandeep Singh <Sandeep.singh@amd.com>");
+MODULE_AUTHOR("Basavaraj Natikar <Basavaraj.Natikar@amd.com>");

drivers/hid/amd-sfh-hid/amd_sfh_pcie.h

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * AMD MP2 PCIe communication driver
- * Copyright 2020 Advanced Micro Devices, Inc.
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
  *	    Sandeep Singh <Sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #ifndef PCIE_MP2_AMD_H

drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *  AMD SFH Report Descriptor generator
- *  Copyright 2020 Advanced Micro Devices, Inc.
+ *  Copyright 2020-2021 Advanced Micro Devices, Inc.
  *  Authors: Nehal Bakulchandra Shah <Nehal-Bakulchandra.Shah@amd.com>
  *	     Sandeep Singh <sandeep.singh@amd.com>
+ *	     Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #include <linux/kernel.h>

drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * HID report descriptors, structures and routines
- * Copyright 2020 Advanced Micro Devices, Inc.
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
  *	    Sandeep Singh <Sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #ifndef AMD_SFH_HID_DESCRIPTOR_H

drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * HID  descriptor stuructures
- * Copyright 2020 Advanced Micro Devices, Inc.
+ * Copyright 2020-2021 Advanced Micro Devices, Inc.
  * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
  *	    Sandeep Singh <Sandeep.singh@amd.com>
+ *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */
 
 #ifndef AMD_SFH_HID_REPORT_DESCRIPTOR_H

drivers/hid/hid-apple.c

@@ -24,11 +24,11 @@
 #define APPLE_RDESC_JIS		0x0001
 #define APPLE_IGNORE_MOUSE	0x0002
 #define APPLE_HAS_FN		0x0004
-#define APPLE_HIDDEV		0x0008
-/* 0x0010 reserved, was: APPLE_ISO_KEYBOARD */
+/* 0x0008 reserved, was: APPLE_HIDDEV */
+#define APPLE_ISO_TILDE_QUIRK	0x0010
 #define APPLE_MIGHTYMOUSE	0x0020
 #define APPLE_INVERT_HWHEEL	0x0040
-#define APPLE_IGNORE_HIDINPUT	0x0080
+/* 0x0080 reserved, was: APPLE_IGNORE_HIDINPUT */
 #define APPLE_NUMLOCK_EMULATION	0x0100
 
 #define APPLE_FLAG_FKEY		0x01
@@ -40,10 +40,10 @@ module_param(fnmode, uint, 0644);
 MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
 		"[1] = fkeyslast, 2 = fkeysfirst)");
 
-static unsigned int iso_layout = 1;
-module_param(iso_layout, uint, 0644);
-MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
-		"(0 = disabled, [1] = enabled)");
+static int iso_layout = -1;
+module_param(iso_layout, int, 0644);
+MODULE_PARM_DESC(iso_layout, "Swap the backtick/tilde and greater-than/less-than keys. "
+		"([-1] = auto, 0 = disabled, 1 = enabled)");
 
 static unsigned int swap_opt_cmd;
 module_param(swap_opt_cmd, uint, 0644);
@@ -277,14 +277,13 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		}
 	}
 
-	if (iso_layout) {
-		if (hid->country == HID_COUNTRY_INTERNATIONAL_ISO) {
-			trans = apple_find_translation(apple_iso_keyboard, usage->code);
-			if (trans) {
-				input_event_with_scancode(input, usage->type,
-						trans->to, usage->hid, value);
-				return 1;
-			}
+	if (iso_layout > 0 || (iso_layout < 0 && (asc->quirks & APPLE_ISO_TILDE_QUIRK) &&
+			hid->country == HID_COUNTRY_INTERNATIONAL_ISO)) {
+		trans = apple_find_translation(apple_iso_keyboard, usage->code);
+		if (trans) {
+			input_event_with_scancode(input, usage->type,
+					trans->to, usage->hid, value);
+			return 1;
 		}
 	}
 
@@ -440,7 +439,6 @@ static int apple_probe(struct hid_device *hdev,
 {
 	unsigned long quirks = id->driver_data;
 	struct apple_sc *asc;
-	unsigned int connect_mask = HID_CONNECT_DEFAULT;
 	int ret;
 
 	asc = devm_kzalloc(&hdev->dev, sizeof(*asc), GFP_KERNEL);
@@ -459,12 +457,7 @@ static int apple_probe(struct hid_device *hdev,
 		return ret;
 	}
 
-	if (quirks & APPLE_HIDDEV)
-		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
-	if (quirks & APPLE_IGNORE_HIDINPUT)
-		connect_mask &= ~HID_CONNECT_HIDINPUT;
-
-	ret = hid_hw_start(hdev, connect_mask);
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		hid_err(hdev, "hw start failed\n");
 		return ret;
@@ -533,9 +526,11 @@ static const struct hid_device_id apple_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO),
-		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
+		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
+			APPLE_ISO_TILDE_QUIRK },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
-		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
+		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
+			APPLE_ISO_TILDE_QUIRK },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 				USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
@@ -544,14 +539,14 @@ static const struct hid_device_id apple_devices[] = {
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI),
-		.driver_data = APPLE_HAS_FN },
-	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI),
-		.driver_data = APPLE_HAS_FN },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI),
-		.driver_data = APPLE_HAS_FN },
-	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI),
-		.driver_data = APPLE_HAS_FN },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
 		.driver_data = APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
@@ -633,13 +628,18 @@ static const struct hid_device_id apple_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
-		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
+		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
+			APPLE_ISO_TILDE_QUIRK },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 
 	{ }
 };

drivers/hid/hid-asus.c

@@ -854,7 +854,7 @@ static int asus_input_mapping(struct hid_device *hdev,
 		switch (usage->hid & HID_USAGE) {
 		case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN);	break;
 		case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP);		break;
-		case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF);		break;
+		case 0x35: asus_map_key_clear(KEY_SCREENLOCK);		break;
 		case 0x6c: asus_map_key_clear(KEY_SLEEP);		break;
 		case 0x7c: asus_map_key_clear(KEY_MICMUTE);		break;
 		case 0x82: asus_map_key_clear(KEY_CAMERA);		break;

drivers/hid/hid-cougar.c

@@ -179,10 +179,9 @@ static int cougar_bind_shared_data(struct hid_device *hdev,
 
 	cougar->shared = shared;
 
-	error = devm_add_action(&hdev->dev, cougar_remove_shared_data, cougar);
+	error = devm_add_action_or_reset(&hdev->dev, cougar_remove_shared_data, cougar);
 	if (error) {
 		mutex_unlock(&cougar_udev_list_lock);
-		cougar_remove_shared_data(cougar);
 		return error;
 	}
 

drivers/hid/hid-debug.c

@@ -160,6 +160,7 @@ static const struct hid_usage_entry hid_usage_table[] = {
     {0, 0x59, "ButtonType"},
     {0, 0x5A, "SecondaryBarrelSwitch"},
     {0, 0x5B, "TransducerSerialNumber"},
+    {0, 0x6e, "TransducerSerialNumber2"},
   { 15, 0, "PhysicalInterfaceDevice" },
     {0, 0x00, "Undefined"},
     {0, 0x01, "Physical_Interface_Device"},
@@ -486,8 +487,7 @@ char *hid_resolv_usage(unsigned usage, struct seq_file *f) {
 
 	if (!f) {
 		len = strlen(buf);
-		snprintf(buf+len, max(0, HID_DEBUG_BUFSIZE - len), ".");
-		len++;
+		len += scnprintf(buf + len, HID_DEBUG_BUFSIZE - len, ".");
 	}
 	else {
 		seq_printf(f, ".");
@@ -498,7 +498,7 @@ char *hid_resolv_usage(unsigned usage, struct seq_file *f) {
 				if (p->usage == (usage & 0xffff)) {
 					if (!f)
 						snprintf(buf + len,
-							max(0,HID_DEBUG_BUFSIZE - len - 1),
+							HID_DEBUG_BUFSIZE - len,
 							"%s", p->description);
 					else
 						seq_printf(f,
@@ -509,8 +509,8 @@ char *hid_resolv_usage(unsigned usage, struct seq_file *f) {
 			break;
 		}
 	if (!f)
-		snprintf(buf + len, max(0, HID_DEBUG_BUFSIZE - len - 1),
-				"%04x", usage & 0xffff);
+		snprintf(buf + len, HID_DEBUG_BUFSIZE - len, "%04x",
+			 usage & 0xffff);
 	else
 		seq_printf(f, "%04x", usage & 0xffff);
 	return buf;

drivers/hid/hid-ids.h

@@ -159,8 +159,8 @@
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI  0x0255
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO   0x0256
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS   0x0257
-#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI   0x0267
-#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI   0x026c
+#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015   0x0267
+#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015   0x026c
 #define USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI	0x0290
 #define USB_DEVICE_ID_APPLE_WELLSPRING8_ISO	0x0291
 #define USB_DEVICE_ID_APPLE_WELLSPRING8_JIS	0x0292
@@ -174,6 +174,7 @@
 #define USB_DEVICE_ID_APPLE_IRCONTROL3	0x8241
 #define USB_DEVICE_ID_APPLE_IRCONTROL4	0x8242
 #define USB_DEVICE_ID_APPLE_IRCONTROL5	0x8243
+#define USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021   0x029c
 
 #define USB_VENDOR_ID_ASUS		0x0486
 #define USB_DEVICE_ID_ASUS_T91MT	0x0185
@@ -288,6 +289,9 @@
 #define USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020	0x0020
 #define USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040	0x0040
 
+#define USB_VENDOR_ID_CLAY_LOGIC	0x20a0
+#define USB_DEVICE_ID_NITROKEY_U2F	0x4287
+
 #define USB_VENDOR_ID_CMEDIA		0x0d8c
 #define USB_DEVICE_ID_CM109		0x000e
 #define USB_DEVICE_ID_CMEDIA_HS100B	0x0014
@@ -917,6 +921,10 @@
 #define USB_VENDOR_ID_NINTENDO		0x057e
 #define USB_DEVICE_ID_NINTENDO_WIIMOTE	0x0306
 #define USB_DEVICE_ID_NINTENDO_WIIMOTE2	0x0330
+#define USB_DEVICE_ID_NINTENDO_JOYCONL	0x2006
+#define USB_DEVICE_ID_NINTENDO_JOYCONR	0x2007
+#define USB_DEVICE_ID_NINTENDO_PROCON	0x2009
+#define USB_DEVICE_ID_NINTENDO_CHRGGRIP	0x200E
 
 #define USB_VENDOR_ID_NOVATEK		0x0603
 #define USB_DEVICE_ID_NOVATEK_PCT	0x0600
@@ -1276,6 +1284,9 @@
 #define	USB_DEVICE_ID_WEIDA_8752	0xC300
 #define	USB_DEVICE_ID_WEIDA_8755	0xC301
 
+#define USB_VENDOR_ID_WINBOND		0x0416
+#define USB_DEVICE_ID_TSTP_MTOUCH	0xc168
+
 #define USB_VENDOR_ID_WISEGROUP		0x0925
 #define USB_DEVICE_ID_SMARTJOY_PLUS	0x0005
 #define USB_DEVICE_ID_SUPER_JOY_BOX_3	0x8888
@@ -1298,6 +1309,9 @@
 #define USB_VENDOR_ID_XAT	0x2505
 #define USB_DEVICE_ID_XAT_CSR	0x0220
 
+#define USB_VENDOR_ID_XIAOMI		0x2717
+#define USB_DEVICE_ID_MI_SILENT_MOUSE	0x5014
+
 #define USB_VENDOR_ID_XIN_MO			0x16c0
 #define USB_DEVICE_ID_XIN_MO_DUAL_ARCADE	0x05e1
 #define USB_DEVICE_ID_THT_2P_ARCADE		0x75e1

drivers/hid/hid-input.c

@@ -871,6 +871,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 			break;
 
 		case 0x5b: /* TransducerSerialNumber */
+		case 0x6e: /* TransducerSerialNumber2 */
 			usage->type = EV_MSC;
 			usage->code = MSC_SERIAL;
 			bit = input->mscbit;

drivers/hid/hid-multitouch.c

@@ -193,6 +193,7 @@ static void mt_post_parse(struct mt_device *td, struct mt_application *app);
 /* reserved					0x0014 */
 #define MT_CLS_WIN_8_FORCE_MULTI_INPUT		0x0015
 #define MT_CLS_WIN_8_DISABLE_WAKEUP		0x0016
+#define MT_CLS_WIN_8_NO_STICKY_FINGERS		0x0017
 
 /* vendor specific classes */
 #define MT_CLS_3M				0x0101
@@ -294,6 +295,13 @@ static const struct mt_class mt_classes[] = {
 			MT_QUIRK_WIN8_PTP_BUTTONS |
 			MT_QUIRK_DISABLE_WAKEUP,
 		.export_all_inputs = true },
+	{ .name = MT_CLS_WIN_8_NO_STICKY_FINGERS,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_IGNORE_DUPLICATES |
+			MT_QUIRK_HOVERING |
+			MT_QUIRK_CONTACT_CNT_ACCURATE |
+			MT_QUIRK_WIN8_PTP_BUTTONS,
+		.export_all_inputs = true },
 
 	/*
 	 * vendor specific classes
@@ -2120,6 +2128,11 @@ static const struct hid_device_id mt_devices[] = {
 		MT_USB_DEVICE(USB_VENDOR_ID_VTL,
 			USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
 
+	/* Winbond Electronics Corp. */
+	{ .driver_data = MT_CLS_WIN_8_NO_STICKY_FINGERS,
+		HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
+			   USB_VENDOR_ID_WINBOND, USB_DEVICE_ID_TSTP_MTOUCH) },
+
 	/* Wistron panels */
 	{ .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,

drivers/hid/hid-playstation.c

@@ -11,6 +11,8 @@
 #include <linux/hid.h>
 #include <linux/idr.h>
 #include <linux/input/mt.h>
+#include <linux/leds.h>
+#include <linux/led-class-multicolor.h>
 #include <linux/module.h>
 
 #include <asm/unaligned.h>
@@ -38,6 +40,7 @@ struct ps_device {
 	uint8_t battery_capacity;
 	int battery_status;
 
+	const char *input_dev_name; /* Name of primary input device. */
 	uint8_t mac_address[6]; /* Note: stored in little endian order. */
 	uint32_t hw_version;
 	uint32_t fw_version;
@@ -53,6 +56,13 @@ struct ps_calibration_data {
 	int sens_denom;
 };
 
+struct ps_led_info {
+	const char *name;
+	const char *color;
+	enum led_brightness (*brightness_get)(struct led_classdev *cdev);
+	int (*brightness_set)(struct led_classdev *cdev, enum led_brightness);
+};
+
 /* Seed values for DualShock4 / DualSense CRC32 for different report types. */
 #define PS_INPUT_CRC32_SEED	0xA1
 #define PS_OUTPUT_CRC32_SEED	0xA2
@@ -147,6 +157,7 @@ struct dualsense {
 	uint8_t motor_right;
 
 	/* RGB lightbar */
+	struct led_classdev_mc lightbar;
 	bool update_lightbar;
 	uint8_t lightbar_red;
 	uint8_t lightbar_green;
@@ -288,6 +299,8 @@ static const struct {int x; int y; } ps_gamepad_hat_mapping[] = {
 	{0, 0},
 };
 
+static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue);
+
 /*
  * Add a new ps_device to ps_devices if it doesn't exist.
  * Return error on duplicate device, which can happen if the same
@@ -525,6 +538,71 @@ static int ps_get_report(struct hid_device *hdev, uint8_t report_id, uint8_t *bu
 	return 0;
 }
 
+static int ps_led_register(struct ps_device *ps_dev, struct led_classdev *led,
+		const struct ps_led_info *led_info)
+{
+	int ret;
+
+	led->name = devm_kasprintf(&ps_dev->hdev->dev, GFP_KERNEL,
+			"%s:%s:%s", ps_dev->input_dev_name, led_info->color, led_info->name);
+
+	if (!led->name)
+		return -ENOMEM;
+
+	led->brightness = 0;
+	led->max_brightness = 1;
+	led->flags = LED_CORE_SUSPENDRESUME;
+	led->brightness_get = led_info->brightness_get;
+	led->brightness_set_blocking = led_info->brightness_set;
+
+	ret = devm_led_classdev_register(&ps_dev->hdev->dev, led);
+	if (ret) {
+		hid_err(ps_dev->hdev, "Failed to register LED %s: %d\n", led_info->name, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* Register a DualSense/DualShock4 RGB lightbar represented by a multicolor LED. */
+static int ps_lightbar_register(struct ps_device *ps_dev, struct led_classdev_mc *lightbar_mc_dev,
+	int (*brightness_set)(struct led_classdev *, enum led_brightness))
+{
+	struct hid_device *hdev = ps_dev->hdev;
+	struct mc_subled *mc_led_info;
+	struct led_classdev *led_cdev;
+	int ret;
+
+	mc_led_info = devm_kmalloc_array(&hdev->dev, 3, sizeof(*mc_led_info),
+					 GFP_KERNEL | __GFP_ZERO);
+	if (!mc_led_info)
+		return -ENOMEM;
+
+	mc_led_info[0].color_index = LED_COLOR_ID_RED;
+	mc_led_info[1].color_index = LED_COLOR_ID_GREEN;
+	mc_led_info[2].color_index = LED_COLOR_ID_BLUE;
+
+	lightbar_mc_dev->subled_info = mc_led_info;
+	lightbar_mc_dev->num_colors = 3;
+
+	led_cdev = &lightbar_mc_dev->led_cdev;
+	led_cdev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s:rgb:indicator",
+			ps_dev->input_dev_name);
+	if (!led_cdev->name)
+		return -ENOMEM;
+	led_cdev->brightness = 255;
+	led_cdev->max_brightness = 255;
+	led_cdev->brightness_set_blocking = brightness_set;
+
+	ret = devm_led_classdev_multicolor_register(&hdev->dev, lightbar_mc_dev);
+	if (ret < 0) {
+		hid_err(hdev, "Cannot register multicolor LED device\n");
+		return ret;
+	}
+
+	return 0;
+}
+
 static struct input_dev *ps_sensors_create(struct hid_device *hdev, int accel_range, int accel_res,
 		int gyro_range, int gyro_res)
 {
@@ -761,6 +839,53 @@ static int dualsense_get_mac_address(struct dualsense *ds)
 	return ret;
 }
 
+static int dualsense_lightbar_set_brightness(struct led_classdev *cdev,
+	enum led_brightness brightness)
+{
+	struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev);
+	struct dualsense *ds = container_of(mc_cdev, struct dualsense, lightbar);
+	uint8_t red, green, blue;
+
+	led_mc_calc_color_components(mc_cdev, brightness);
+	red = mc_cdev->subled_info[0].brightness;
+	green = mc_cdev->subled_info[1].brightness;
+	blue = mc_cdev->subled_info[2].brightness;
+
+	dualsense_set_lightbar(ds, red, green, blue);
+	return 0;
+}
+
+static enum led_brightness dualsense_player_led_get_brightness(struct led_classdev *led)
+{
+	struct hid_device *hdev = to_hid_device(led->dev->parent);
+	struct dualsense *ds = hid_get_drvdata(hdev);
+
+	return !!(ds->player_leds_state & BIT(led - ds->player_leds));
+}
+
+static int dualsense_player_led_set_brightness(struct led_classdev *led, enum led_brightness value)
+{
+	struct hid_device *hdev = to_hid_device(led->dev->parent);
+	struct dualsense *ds = hid_get_drvdata(hdev);
+	unsigned long flags;
+	unsigned int led_index;
+
+	spin_lock_irqsave(&ds->base.lock, flags);
+
+	led_index = led - ds->player_leds;
+	if (value == LED_OFF)
+		ds->player_leds_state &= ~BIT(led_index);
+	else
+		ds->player_leds_state |= BIT(led_index);
+
+	ds->update_player_leds = true;
+	spin_unlock_irqrestore(&ds->base.lock, flags);
+
+	schedule_work(&ds->output_worker);
+
+	return 0;
+}
+
 static void dualsense_init_output_report(struct dualsense *ds, struct dualsense_output_report *rp,
 		void *buf)
 {
@@ -1106,10 +1231,14 @@ static int dualsense_reset_leds(struct dualsense *ds)
 
 static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&ds->base.lock, flags);
 	ds->update_lightbar = true;
 	ds->lightbar_red = red;
 	ds->lightbar_green = green;
 	ds->lightbar_blue = blue;
+	spin_unlock_irqrestore(&ds->base.lock, flags);
 
 	schedule_work(&ds->output_worker);
 }
@@ -1142,7 +1271,20 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
 	struct dualsense *ds;
 	struct ps_device *ps_dev;
 	uint8_t max_output_report_size;
-	int ret;
+	int i, ret;
+
+	static const struct ps_led_info player_leds_info[] = {
+		{ LED_FUNCTION_PLAYER1, "white", dualsense_player_led_get_brightness,
+				dualsense_player_led_set_brightness },
+		{ LED_FUNCTION_PLAYER2, "white", dualsense_player_led_get_brightness,
+				dualsense_player_led_set_brightness },
+		{ LED_FUNCTION_PLAYER3, "white", dualsense_player_led_get_brightness,
+				dualsense_player_led_set_brightness },
+		{ LED_FUNCTION_PLAYER4, "white", dualsense_player_led_get_brightness,
+				dualsense_player_led_set_brightness },
+		{ LED_FUNCTION_PLAYER5, "white", dualsense_player_led_get_brightness,
+				dualsense_player_led_set_brightness }
+	};
 
 	ds = devm_kzalloc(&hdev->dev, sizeof(*ds), GFP_KERNEL);
 	if (!ds)
@@ -1196,6 +1338,8 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
 		ret = PTR_ERR(ds->gamepad);
 		goto err;
 	}
+	/* Use gamepad input device name as primary device name for e.g. LEDs */
+	ps_dev->input_dev_name = dev_name(&ds->gamepad->dev);
 
 	ds->sensors = ps_sensors_create(hdev, DS_ACC_RANGE, DS_ACC_RES_PER_G,
 			DS_GYRO_RANGE, DS_GYRO_RES_PER_DEG_S);
@@ -1223,8 +1367,21 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
 	if (ret)
 		goto err;
 
+	ret = ps_lightbar_register(ps_dev, &ds->lightbar, dualsense_lightbar_set_brightness);
+	if (ret)
+		goto err;
+
+	/* Set default lightbar color. */
 	dualsense_set_lightbar(ds, 0, 0, 128); /* blue */
 
+	for (i = 0; i < ARRAY_SIZE(player_leds_info); i++) {
+		const struct ps_led_info *led_info = &player_leds_info[i];
+
+		ret = ps_led_register(ps_dev, &ds->player_leds[i], led_info);
+		if (ret < 0)
+			goto err;
+	}
+
 	ret = ps_device_set_player_id(ps_dev);
 	if (ret) {
 		hid_err(hdev, "Failed to assign player id for DualSense: %d\n", ret);

drivers/hid/hid-quirks.c

@@ -299,9 +299,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021) },
 #endif
 #if IS_ENABLED(CONFIG_HID_APPLEIR)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },

drivers/hid/hid-u2fzero.c

@@ -26,6 +26,30 @@
 
 #define HID_REPORT_SIZE		64
 
+enum hw_revision {
+	HW_U2FZERO,
+	HW_NITROKEY_U2F,
+};
+
+struct hw_revision_config {
+	u8 rng_cmd;
+	u8 wink_cmd;
+	const char *name;
+};
+
+static const struct hw_revision_config hw_configs[] = {
+	[HW_U2FZERO] = {
+		.rng_cmd  = 0x21,
+		.wink_cmd = 0x24,
+		.name = "U2F Zero",
+	},
+	[HW_NITROKEY_U2F] = {
+		.rng_cmd  = 0xc0,
+		.wink_cmd = 0xc2,
+		.name = "NitroKey U2F",
+	},
+};
+
 /* We only use broadcast (CID-less) messages */
 #define CID_BROADCAST		0xffffffff
 
@@ -52,10 +76,6 @@ struct u2f_hid_report {
 
 #define U2F_HID_MSG_LEN(f)	(size_t)(((f).init.bcnth << 8) + (f).init.bcntl)
 
-/* Custom extensions to the U2FHID protocol */
-#define U2F_CUSTOM_GET_RNG	0x21
-#define U2F_CUSTOM_WINK		0x24
-
 struct u2fzero_device {
 	struct hid_device	*hdev;
 	struct urb		*urb;	    /* URB for the RNG data */
@@ -67,6 +87,7 @@ struct u2fzero_device {
 	u8			*buf_in;
 	struct mutex		lock;
 	bool			present;
+	kernel_ulong_t		hw_revision;
 };
 
 static int u2fzero_send(struct u2fzero_device *dev, struct u2f_hid_report *req)
@@ -132,7 +153,7 @@ static int u2fzero_recv(struct u2fzero_device *dev,
 
 	ret = (wait_for_completion_timeout(
 		&ctx.done, msecs_to_jiffies(USB_CTRL_SET_TIMEOUT)));
-	if (ret < 0) {
+	if (ret == 0) {
 		usb_kill_urb(dev->urb);
 		hid_err(hdev, "urb submission timed out");
 	} else {
@@ -154,7 +175,7 @@ static int u2fzero_blink(struct led_classdev *ldev)
 		.report_type = 0,
 		.msg.cid = CID_BROADCAST,
 		.msg.init = {
-			.cmd = U2F_CUSTOM_WINK,
+			.cmd = hw_configs[dev->hw_revision].wink_cmd,
 			.bcnth = 0,
 			.bcntl = 0,
 			.data  = {0},
@@ -182,7 +203,7 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 		.report_type = 0,
 		.msg.cid = CID_BROADCAST,
 		.msg.init = {
-			.cmd = U2F_CUSTOM_GET_RNG,
+			.cmd = hw_configs[dev->hw_revision].rng_cmd,
 			.bcnth = 0,
 			.bcntl = 0,
 			.data  = {0},
@@ -191,6 +212,8 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 	struct u2f_hid_msg resp;
 	int ret;
 	size_t actual_length;
+	/* valid packets must have a correct header */
+	int min_length = offsetof(struct u2f_hid_msg, init.data);
 
 	if (!dev->present) {
 		hid_dbg(dev->hdev, "device not present");
@@ -200,12 +223,12 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 	ret = u2fzero_recv(dev, &req, &resp);
 
 	/* ignore errors or packets without data */
-	if (ret < offsetof(struct u2f_hid_msg, init.data))
+	if (ret < min_length)
 		return 0;
 
 	/* only take the minimum amount of data it is safe to take */
-	actual_length = min3((size_t)ret - offsetof(struct u2f_hid_msg,
-		init.data), U2F_HID_MSG_LEN(resp), max);
+	actual_length = min3((size_t)ret - min_length,
+		U2F_HID_MSG_LEN(resp), max);
 
 	memcpy(data, resp.init.data, actual_length);
 
@@ -295,6 +318,8 @@ static int u2fzero_probe(struct hid_device *hdev,
 	if (dev == NULL)
 		return -ENOMEM;
 
+	dev->hw_revision = id->driver_data;
+
 	dev->buf_out = devm_kmalloc(&hdev->dev,
 		sizeof(struct u2f_hid_report), GFP_KERNEL);
 	if (dev->buf_out == NULL)
@@ -329,7 +354,7 @@ static int u2fzero_probe(struct hid_device *hdev,
 		return ret;
 	}
 
-	hid_info(hdev, "U2F Zero LED initialised\n");
+	hid_info(hdev, "%s LED initialised\n", hw_configs[dev->hw_revision].name);
 
 	ret = u2fzero_init_hwrng(dev, minor);
 	if (ret) {
@@ -337,7 +362,7 @@ static int u2fzero_probe(struct hid_device *hdev,
 		return ret;
 	}
 
-	hid_info(hdev, "U2F Zero RNG initialised\n");
+	hid_info(hdev, "%s RNG initialised\n", hw_configs[dev->hw_revision].name);
 
 	return 0;
 }
@@ -357,7 +382,11 @@ static void u2fzero_remove(struct hid_device *hdev)
 
 static const struct hid_device_id u2fzero_table[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
-	  USB_DEVICE_ID_U2F_ZERO) },
+	  USB_DEVICE_ID_U2F_ZERO),
+	  .driver_data = HW_U2FZERO },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CLAY_LOGIC,
+	  USB_DEVICE_ID_NITROKEY_U2F),
+	  .driver_data = HW_NITROKEY_U2F },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, u2fzero_table);

drivers/hid/hid-xiaomi.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * HID driver for Xiaomi Mi Dual Mode Wireless Mouse Silent Edition
+ *
+ * Copyright (c) 2021 Ilya Skriblovsky
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+
+#include "hid-ids.h"
+
+/* Fixed Mi Silent Mouse report descriptor */
+/* Button's Usage Maximum changed from 3 to 5 to make side buttons work */
+#define MI_SILENT_MOUSE_ORIG_RDESC_LENGTH   87
+static __u8 mi_silent_mouse_rdesc_fixed[] = {
+	0x05, 0x01,         /*  Usage Page (Desktop),               */
+	0x09, 0x02,         /*  Usage (Mouse),                      */
+	0xA1, 0x01,         /*  Collection (Application),           */
+	0x85, 0x03,         /*      Report ID (3),                  */
+	0x09, 0x01,         /*      Usage (Pointer),                */
+	0xA1, 0x00,         /*      Collection (Physical),          */
+	0x05, 0x09,         /*          Usage Page (Button),        */
+	0x19, 0x01,         /*          Usage Minimum (01h),        */
+	0x29, 0x05, /* X */ /*          Usage Maximum (05h),        */
+	0x15, 0x00,         /*          Logical Minimum (0),        */
+	0x25, 0x01,         /*          Logical Maximum (1),        */
+	0x75, 0x01,         /*          Report Size (1),            */
+	0x95, 0x05,         /*          Report Count (5),           */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x75, 0x03,         /*          Report Size (3),            */
+	0x95, 0x01,         /*          Report Count (1),           */
+	0x81, 0x01,         /*          Input (Constant),           */
+	0x05, 0x01,         /*          Usage Page (Desktop),       */
+	0x09, 0x30,         /*          Usage (X),                  */
+	0x09, 0x31,         /*          Usage (Y),                  */
+	0x15, 0x81,         /*          Logical Minimum (-127),     */
+	0x25, 0x7F,         /*          Logical Maximum (127),      */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x02,         /*          Report Count (2),           */
+	0x81, 0x06,         /*          Input (Variable, Relative), */
+	0x09, 0x38,         /*          Usage (Wheel),              */
+	0x15, 0x81,         /*          Logical Minimum (-127),     */
+	0x25, 0x7F,         /*          Logical Maximum (127),      */
+	0x75, 0x08,         /*          Report Size (8),            */
+	0x95, 0x01,         /*          Report Count (1),           */
+	0x81, 0x06,         /*          Input (Variable, Relative), */
+	0xC0,               /*      End Collection,                 */
+	0xC0,               /*  End Collection,                     */
+	0x06, 0x01, 0xFF,   /*  Usage Page (FF01h),                 */
+	0x09, 0x01,         /*  Usage (01h),                        */
+	0xA1, 0x01,         /*  Collection (Application),           */
+	0x85, 0x05,         /*      Report ID (5),                  */
+	0x09, 0x05,         /*      Usage (05h),                    */
+	0x15, 0x00,         /*      Logical Minimum (0),            */
+	0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
+	0x75, 0x08,         /*      Report Size (8),                */
+	0x95, 0x04,         /*      Report Count (4),               */
+	0xB1, 0x02,         /*      Feature (Variable),             */
+	0xC0                /*  End Collection                      */
+};
+
+static __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				 unsigned int *rsize)
+{
+	switch (hdev->product) {
+	case USB_DEVICE_ID_MI_SILENT_MOUSE:
+		if (*rsize == MI_SILENT_MOUSE_ORIG_RDESC_LENGTH) {
+			hid_info(hdev, "fixing up Mi Silent Mouse report descriptor\n");
+			rdesc = mi_silent_mouse_rdesc_fixed;
+			*rsize = sizeof(mi_silent_mouse_rdesc_fixed);
+		}
+		break;
+	}
+	return rdesc;
+}
+
+static const struct hid_device_id xiaomi_devices[] = {
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_XIAOMI, USB_DEVICE_ID_MI_SILENT_MOUSE) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, xiaomi_devices);
+
+static struct hid_driver xiaomi_driver = {
+	.name = "xiaomi",
+	.id_table = xiaomi_devices,
+	.report_fixup = xiaomi_report_fixup,
+};
+module_hid_driver(xiaomi_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ilya Skriblovsky <IlyaSkriblovsky@gmail.com>");
+MODULE_DESCRIPTION("Fixing side buttons of Xiaomi Mi Silent Mouse");

drivers/hid/wacom_sys.c

@@ -881,8 +881,8 @@ static int wacom_add_shared_data(struct hid_device *hdev)
 	if (!data) {
 		data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL);
 		if (!data) {
-			retval = -ENOMEM;
-			goto out;
+			mutex_unlock(&wacom_udev_list_lock);
+			return -ENOMEM;
 		}
 
 		kref_init(&data->kref);
@@ -890,22 +890,19 @@ static int wacom_add_shared_data(struct hid_device *hdev)
 		list_add_tail(&data->list, &wacom_udev_list);
 	}
 
+	mutex_unlock(&wacom_udev_list_lock);
+
 	wacom_wac->shared = &data->shared;
 
-	retval = devm_add_action(&hdev->dev, wacom_remove_shared_data, wacom);
-	if (retval) {
-		mutex_unlock(&wacom_udev_list_lock);
-		wacom_remove_shared_data(wacom);
+	retval = devm_add_action_or_reset(&hdev->dev, wacom_remove_shared_data, wacom);
+	if (retval)
 		return retval;
-	}
 
 	if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)
 		wacom_wac->shared->touch = hdev;
 	else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN)
 		wacom_wac->shared->pen = hdev;
 
-out:
-	mutex_unlock(&wacom_udev_list_lock);
 	return retval;
 }
 

drivers/input/joydev.c

@@ -758,6 +758,12 @@ static void joydev_cleanup(struct joydev *joydev)
 #define USB_VENDOR_ID_THQ			0x20d6
 #define USB_DEVICE_ID_THQ_PS3_UDRAW			0xcb17
 
+#define USB_VENDOR_ID_NINTENDO		0x057e
+#define USB_DEVICE_ID_NINTENDO_JOYCONL	0x2006
+#define USB_DEVICE_ID_NINTENDO_JOYCONR	0x2007
+#define USB_DEVICE_ID_NINTENDO_PROCON	0x2009
+#define USB_DEVICE_ID_NINTENDO_CHRGGRIP	0x200E
+
 #define ACCEL_DEV(vnd, prd)						\
 	{								\
 		.flags = INPUT_DEVICE_ID_MATCH_VENDOR |			\
@@ -789,6 +795,10 @@ static const struct input_device_id joydev_blacklist[] = {
 	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
 	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
 	ACCEL_DEV(USB_VENDOR_ID_THQ, USB_DEVICE_ID_THQ_PS3_UDRAW),
+	ACCEL_DEV(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_PROCON),
+	ACCEL_DEV(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_CHRGGRIP),
+	ACCEL_DEV(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_JOYCONL),
+	ACCEL_DEV(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_JOYCONR),
 	{ /* sentinel */ }
 };
 

include/dt-bindings/leds/common.h

@@ -60,6 +60,13 @@
 #define LED_FUNCTION_MICMUTE "micmute"
 #define LED_FUNCTION_MUTE "mute"
 
+/* Used for player LEDs as found on game controllers from e.g. Nintendo, Sony. */
+#define LED_FUNCTION_PLAYER1 "player-1"
+#define LED_FUNCTION_PLAYER2 "player-2"
+#define LED_FUNCTION_PLAYER3 "player-3"
+#define LED_FUNCTION_PLAYER4 "player-4"
+#define LED_FUNCTION_PLAYER5 "player-5"
+
 /* Miscelleaus functions. Use functions above if you can. */
 #define LED_FUNCTION_ACTIVITY "activity"
 #define LED_FUNCTION_ALARM "alarm"