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

Pull HID updates from Jiri Kosina:
 "Highlights:

   - Intel Skylake Win8 precision touchpads support fixes/improvements
     from Mika Westerberg

   - Lenovo Yoga 2 quirk from Ritesh Raj Sarraf

   - potential uninitialized buffer access fix in HID core from Richard
     Purdie

   - Wacom Intuos and Wacom Cintiq 2 support improvements from Jason
     Gerecke and Ping Cheng

   - initiation of sysfs deprecation process for most of the roccat
     drivers, from the roccat support maintiner Stefan Achatz

   - quite a few device ID / quirk additions and small fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (30 commits)
  HID: logitech: Add support for G29
  HID: logitech: Simplify wheel detection scheme
  HID: wacom: Call 'wacom_query_tablet_data' only after 'hid_hw_start'
  HID: wacom: Fix ABS_MISC reporting for Cintiq Companion 2
  HID: wacom: Remove useless conditions from 'wacom_query_tablet_data'
  HID: wacom: fix Intuos wireless report id issue
  HID: fix some indenting issues
  HID: wacom: Expect 'touch_max' touches if HID_DG_CONTACTCOUNT not present
  HID: wacom: Tie cached HID_DG_CONTACTCOUNT indices to report ID
  HID: roccat: Fixed resubmit: Deprecating most Roccat sysfs attributes
  HID: wacom: Report full pressure range for Intuos, Cintiq 13HD Touch
  HID: wacom: Add support for Cintiq Companion 2
  HID: multitouch: Fetch feature reports on demand for Win8 devices
  HID: sensor-hub: Add quirk for Lenovo Yoga 2 with ITE Chips
  HID: usbhid: Fix for the WiiU adapter from Mayflash
  HID: corsair: boolify struct k90_led.removed
  HID: corsair: Add Corsair Vengeance K90 driver
  HID: hid-input: allow input_configured callback return errors
  HID: multitouch: Add suffix for HID_DG_TOUCHPAD
  HID: i2c-hid: Fill in physical device providing HID functionality
  ...

21 files changed, 1279 insertions, 128 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 7245b7f8767f..513a16cc6e18 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -171,6 +171,16 @@ config HID_CHICONY
 	---help---
 	Support for Chicony Tactical pad.
 
+config HID_CORSAIR
+	tristate "Corsair devices"
+	depends on HID && USB && LEDS_CLASS
+	---help---
+	Support for Corsair devices that are not fully compliant with the
+	HID standard.
+
+	Supported devices:
+	- Vengeance K90
+
 config HID_PRODIKEYS
 	tristate "Prodikeys PC-MIDI Keyboard support"
 	depends on HID && SND
@@ -678,9 +688,8 @@ config HID_SAITEK
 
 	Supported devices:
 	- PS1000 Dual Analog Pad
-	- R.A.T.9 Gaming Mouse
-	- R.A.T.7 Gaming Mouse
-	- M.M.O.7 Gaming Mouse
+	- Saitek R.A.T.7, R.A.T.9, M.M.O.7 Gaming Mice
+	- Mad Catz R.A.T.5, R.A.T.9 Gaming Mice
 
 config HID_SAMSUNG
 	tristate "Samsung InfraRed remote control or keyboards"
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 571d176d22df..00011fee08b9 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_HID_BELKIN)	+= hid-belkin.o
 obj-$(CONFIG_HID_BETOP_FF)	+= hid-betopff.o
 obj-$(CONFIG_HID_CHERRY)	+= hid-cherry.o
 obj-$(CONFIG_HID_CHICONY)	+= hid-chicony.o
+obj-$(CONFIG_HID_CORSAIR)	+= hid-corsair.o
 obj-$(CONFIG_HID_CP2112)	+= hid-cp2112.o
 obj-$(CONFIG_HID_CYPRESS)	+= hid-cypress.o
 obj-$(CONFIG_HID_DRAGONRISE)	+= hid-dr.o
diff --git a/drivers/hid/hid-aureal.c b/drivers/hid/hid-aureal.c
index 340ba9d394a0..3280aff28e90 100644
--- a/drivers/hid/hid-aureal.c
+++ b/drivers/hid/hid-aureal.c
@@ -23,7 +23,8 @@ static __u8 *aureal_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
 		dev_info(&hdev->dev, "fixing Aureal Cy se W-01RN USB_V3.1 report descriptor.\n");
 		rdesc[53] = 0x65;
-	} return rdesc;
+	}
+	return rdesc;
 }
 
 static const struct hid_device_id aureal_devices[] = {
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 70a11ac38119..c6f7a694f67a 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -725,6 +725,7 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
 	    (hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3 ||
+	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2 ||
 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP ||
 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_3 ||
 	     hid->product == USB_DEVICE_ID_MS_POWER_COVER) &&
@@ -1611,7 +1612,7 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 		"Multi-Axis Controller"
 	};
 	const char *type, *bus;
-	char buf[64];
+	char buf[64] = "";
 	unsigned int i;
 	int len;
 	int ret;
@@ -1678,6 +1679,9 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 	case BUS_BLUETOOTH:
 		bus = "BLUETOOTH";
 		break;
+	case BUS_I2C:
+		bus = "I2C";
+		break;
 	default:
 		bus = "<UNKNOWN>";
 	}
@@ -1828,6 +1832,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
@@ -1896,6 +1901,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
@@ -1928,6 +1934,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER) },
@@ -1981,6 +1988,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9) },
 #endif
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
new file mode 100644
index 000000000000..bcefb9ebb026
--- /dev/null
+++ b/drivers/hid/hid-corsair.c
@@ -0,0 +1,673 @@
+/*
+ * HID driver for Corsair devices
+ *
+ * Supported devices:
+ *  - Vengeance K90 Keyboard
+ *
+ * Copyright (c) 2015 Clement Vuchener
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/leds.h>
+
+#include "hid-ids.h"
+
+#define CORSAIR_USE_K90_MACRO	(1<<0)
+#define CORSAIR_USE_K90_BACKLIGHT	(1<<1)
+
+struct k90_led {
+	struct led_classdev cdev;
+	int brightness;
+	struct work_struct work;
+	bool removed;
+};
+
+struct k90_drvdata {
+	struct k90_led record_led;
+};
+
+struct corsair_drvdata {
+	unsigned long quirks;
+	struct k90_drvdata *k90;
+	struct k90_led *backlight;
+};
+
+#define K90_GKEY_COUNT	18
+
+static int corsair_usage_to_gkey(unsigned int usage)
+{
+	/* G1 (0xd0) to G16 (0xdf) */
+	if (usage >= 0xd0 && usage <= 0xdf)
+		return usage - 0xd0 + 1;
+	/* G17 (0xe8) to G18 (0xe9) */
+	if (usage >= 0xe8 && usage <= 0xe9)
+		return usage - 0xe8 + 17;
+	return 0;
+}
+
+static unsigned short corsair_gkey_map[K90_GKEY_COUNT] = {
+	BTN_TRIGGER_HAPPY1,
+	BTN_TRIGGER_HAPPY2,
+	BTN_TRIGGER_HAPPY3,
+	BTN_TRIGGER_HAPPY4,
+	BTN_TRIGGER_HAPPY5,
+	BTN_TRIGGER_HAPPY6,
+	BTN_TRIGGER_HAPPY7,
+	BTN_TRIGGER_HAPPY8,
+	BTN_TRIGGER_HAPPY9,
+	BTN_TRIGGER_HAPPY10,
+	BTN_TRIGGER_HAPPY11,
+	BTN_TRIGGER_HAPPY12,
+	BTN_TRIGGER_HAPPY13,
+	BTN_TRIGGER_HAPPY14,
+	BTN_TRIGGER_HAPPY15,
+	BTN_TRIGGER_HAPPY16,
+	BTN_TRIGGER_HAPPY17,
+	BTN_TRIGGER_HAPPY18,
+};
+
+module_param_array_named(gkey_codes, corsair_gkey_map, ushort, NULL, S_IRUGO);
+MODULE_PARM_DESC(gkey_codes, "Key codes for the G-keys");
+
+static unsigned short corsair_record_keycodes[2] = {
+	BTN_TRIGGER_HAPPY19,
+	BTN_TRIGGER_HAPPY20
+};
+
+module_param_array_named(recordkey_codes, corsair_record_keycodes, ushort,
+			 NULL, S_IRUGO);
+MODULE_PARM_DESC(recordkey_codes, "Key codes for the MR (start and stop record) button");
+
+static unsigned short corsair_profile_keycodes[3] = {
+	BTN_TRIGGER_HAPPY21,
+	BTN_TRIGGER_HAPPY22,
+	BTN_TRIGGER_HAPPY23
+};
+
+module_param_array_named(profilekey_codes, corsair_profile_keycodes, ushort,
+			 NULL, S_IRUGO);
+MODULE_PARM_DESC(profilekey_codes, "Key codes for the profile buttons");
+
+#define CORSAIR_USAGE_SPECIAL_MIN 0xf0
+#define CORSAIR_USAGE_SPECIAL_MAX 0xff
+
+#define CORSAIR_USAGE_MACRO_RECORD_START 0xf6
+#define CORSAIR_USAGE_MACRO_RECORD_STOP 0xf7
+
+#define CORSAIR_USAGE_PROFILE 0xf1
+#define CORSAIR_USAGE_M1 0xf1
+#define CORSAIR_USAGE_M2 0xf2
+#define CORSAIR_USAGE_M3 0xf3
+#define CORSAIR_USAGE_PROFILE_MAX 0xf3
+
+#define CORSAIR_USAGE_META_OFF 0xf4
+#define CORSAIR_USAGE_META_ON  0xf5
+
+#define CORSAIR_USAGE_LIGHT 0xfa
+#define CORSAIR_USAGE_LIGHT_OFF 0xfa
+#define CORSAIR_USAGE_LIGHT_DIM 0xfb
+#define CORSAIR_USAGE_LIGHT_MEDIUM 0xfc
+#define CORSAIR_USAGE_LIGHT_BRIGHT 0xfd
+#define CORSAIR_USAGE_LIGHT_MAX 0xfd
+
+/* USB control protocol */
+
+#define K90_REQUEST_BRIGHTNESS 49
+#define K90_REQUEST_MACRO_MODE 2
+#define K90_REQUEST_STATUS 4
+#define K90_REQUEST_GET_MODE 5
+#define K90_REQUEST_PROFILE 20
+
+#define K90_MACRO_MODE_SW 0x0030
+#define K90_MACRO_MODE_HW 0x0001
+
+#define K90_MACRO_LED_ON  0x0020
+#define K90_MACRO_LED_OFF 0x0040
+
+/*
+ * LED class devices
+ */
+
+#define K90_BACKLIGHT_LED_SUFFIX "::backlight"
+#define K90_RECORD_LED_SUFFIX "::record"
+
+static enum led_brightness k90_backlight_get(struct led_classdev *led_cdev)
+{
+	int ret;
+	struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
+	struct device *dev = led->cdev.dev->parent;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	int brightness;
+	char data[8];
+
+	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+			      K90_REQUEST_STATUS,
+			      USB_DIR_IN | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, 0, 0, data, 8,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
+			 ret);
+		return -EIO;
+	}
+	brightness = data[4];
+	if (brightness < 0 || brightness > 3) {
+		dev_warn(dev,
+			 "Read invalid backlight brightness: %02hhx.\n",
+			 data[4]);
+		return -EIO;
+	}
+	return brightness;
+}
+
+static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev)
+{
+	struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
+
+	return led->brightness;
+}
+
+static void k90_brightness_set(struct led_classdev *led_cdev,
+			       enum led_brightness brightness)
+{
+	struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
+
+	led->brightness = brightness;
+	schedule_work(&led->work);
+}
+
+static void k90_backlight_work(struct work_struct *work)
+{
+	int ret;
+	struct k90_led *led = container_of(work, struct k90_led, work);
+	struct device *dev;
+	struct usb_interface *usbif;
+	struct usb_device *usbdev;
+
+	if (led->removed)
+		return;
+
+	dev = led->cdev.dev->parent;
+	usbif = to_usb_interface(dev->parent);
+	usbdev = interface_to_usbdev(usbif);
+
+	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+			      K90_REQUEST_BRIGHTNESS,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, led->brightness, 0,
+			      NULL, 0, USB_CTRL_SET_TIMEOUT);
+	if (ret != 0)
+		dev_warn(dev, "Failed to set backlight brightness (error: %d).\n",
+			 ret);
+}
+
+static void k90_record_led_work(struct work_struct *work)
+{
+	int ret;
+	struct k90_led *led = container_of(work, struct k90_led, work);
+	struct device *dev;
+	struct usb_interface *usbif;
+	struct usb_device *usbdev;
+	int value;
+
+	if (led->removed)
+		return;
+
+	dev = led->cdev.dev->parent;
+	usbif = to_usb_interface(dev->parent);
+	usbdev = interface_to_usbdev(usbif);
+
+	if (led->brightness > 0)
+		value = K90_MACRO_LED_ON;
+	else
+		value = K90_MACRO_LED_OFF;
+
+	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+			      K90_REQUEST_MACRO_MODE,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, value, 0, NULL, 0,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret != 0)
+		dev_warn(dev, "Failed to set record LED state (error: %d).\n",
+			 ret);
+}
+
+/*
+ * Keyboard attributes
+ */
+
+static ssize_t k90_show_macro_mode(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int ret;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	const char *macro_mode;
+	char data[8];
+
+	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+			      K90_REQUEST_GET_MODE,
+			      USB_DIR_IN | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, 0, 0, data, 2,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_warn(dev, "Failed to get K90 initial mode (error %d).\n",
+			 ret);
+		return -EIO;
+	}
+
+	switch (data[0]) {
+	case K90_MACRO_MODE_HW:
+		macro_mode = "HW";
+		break;
+
+	case K90_MACRO_MODE_SW:
+		macro_mode = "SW";
+		break;
+	default:
+		dev_warn(dev, "K90 in unknown mode: %02hhx.\n",
+			 data[0]);
+		return -EIO;
+	}
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
+}
+
+static ssize_t k90_store_macro_mode(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int ret;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	__u16 value;
+
+	if (strncmp(buf, "SW", 2) == 0)
+		value = K90_MACRO_MODE_SW;
+	else if (strncmp(buf, "HW", 2) == 0)
+		value = K90_MACRO_MODE_HW;
+	else
+		return -EINVAL;
+
+	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+			      K90_REQUEST_MACRO_MODE,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, value, 0, NULL, 0,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret != 0) {
+		dev_warn(dev, "Failed to set macro mode.\n");
+		return ret;
+	}
+
+	return count;
+}
+
+static ssize_t k90_show_current_profile(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	int ret;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	int current_profile;
+	char data[8];
+
+	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+			      K90_REQUEST_STATUS,
+			      USB_DIR_IN | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, 0, 0, data, 8,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
+			 ret);
+		return -EIO;
+	}
+	current_profile = data[7];
+	if (current_profile < 1 || current_profile > 3) {
+		dev_warn(dev, "Read invalid current profile: %02hhx.\n",
+			 data[7]);
+		return -EIO;
+	}
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
+}
+
+static ssize_t k90_store_current_profile(struct device *dev,
+					 struct device_attribute *attr,
+					 const char *buf, size_t count)
+{
+	int ret;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	int profile;
+
+	if (kstrtoint(buf, 10, &profile))
+		return -EINVAL;
+	if (profile < 1 || profile > 3)
+		return -EINVAL;
+
+	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+			      K90_REQUEST_PROFILE,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE, profile, 0, NULL, 0,
+			      USB_CTRL_SET_TIMEOUT);
+	if (ret != 0) {
+		dev_warn(dev, "Failed to change current profile (error %d).\n",
+			 ret);
+		return ret;
+	}
+
+	return count;
+}
+
+static DEVICE_ATTR(macro_mode, 0644, k90_show_macro_mode, k90_store_macro_mode);
+static DEVICE_ATTR(current_profile, 0644, k90_show_current_profile,
+		   k90_store_current_profile);
+
+static struct attribute *k90_attrs[] = {
+	&dev_attr_macro_mode.attr,
+	&dev_attr_current_profile.attr,
+	NULL
+};
+
+static const struct attribute_group k90_attr_group = {
+	.attrs = k90_attrs,
+};
+
+/*
+ * Driver functions
+ */
+
+static int k90_init_backlight(struct hid_device *dev)
+{
+	int ret;
+	struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
+	size_t name_sz;
+	char *name;
+
+	drvdata->backlight = kzalloc(sizeof(struct k90_led), GFP_KERNEL);
+	if (!drvdata->backlight) {
+		ret = -ENOMEM;
+		goto fail_backlight_alloc;
+	}
+
+	name_sz =
+	    strlen(dev_name(&dev->dev)) + sizeof(K90_BACKLIGHT_LED_SUFFIX);
+	name = kzalloc(name_sz, GFP_KERNEL);
+	if (!name) {
+		ret = -ENOMEM;
+		goto fail_name_alloc;
+	}
+	snprintf(name, name_sz, "%s" K90_BACKLIGHT_LED_SUFFIX,
+		 dev_name(&dev->dev));
+	drvdata->backlight->removed = false;
+	drvdata->backlight->cdev.name = name;
+	drvdata->backlight->cdev.max_brightness = 3;
+	drvdata->backlight->cdev.brightness_set = k90_brightness_set;
+	drvdata->backlight->cdev.brightness_get = k90_backlight_get;
+	INIT_WORK(&drvdata->backlight->work, k90_backlight_work);
+	ret = led_classdev_register(&dev->dev, &drvdata->backlight->cdev);
+	if (ret != 0)
+		goto fail_register_cdev;
+
+	return 0;
+
+fail_register_cdev:
+	kfree(drvdata->backlight->cdev.name);
+fail_name_alloc:
+	kfree(drvdata->backlight);
+	drvdata->backlight = NULL;
+fail_backlight_alloc:
+	return ret;
+}
+
+static int k90_init_macro_functions(struct hid_device *dev)
+{
+	int ret;
+	struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
+	struct k90_drvdata *k90;
+	size_t name_sz;
+	char *name;
+
+	k90 = kzalloc(sizeof(struct k90_drvdata), GFP_KERNEL);
+	if (!k90) {
+		ret = -ENOMEM;
+		goto fail_drvdata;
+	}
+	drvdata->k90 = k90;
+
+	/* Init LED device for record LED */
+	name_sz = strlen(dev_name(&dev->dev)) + sizeof(K90_RECORD_LED_SUFFIX);
+	name = kzalloc(name_sz, GFP_KERNEL);
+	if (!name) {
+		ret = -ENOMEM;
+		goto fail_record_led_alloc;
+	}
+	snprintf(name, name_sz, "%s" K90_RECORD_LED_SUFFIX,
+		 dev_name(&dev->dev));
+	k90->record_led.removed = false;
+	k90->record_led.cdev.name = name;
+	k90->record_led.cdev.max_brightness = 1;
+	k90->record_led.cdev.brightness_set = k90_brightness_set;
+	k90->record_led.cdev.brightness_get = k90_record_led_get;
+	INIT_WORK(&k90->record_led.work, k90_record_led_work);
+	k90->record_led.brightness = 0;
+	ret = led_classdev_register(&dev->dev, &k90->record_led.cdev);
+	if (ret != 0)
+		goto fail_record_led;
+
+	/* Init attributes */
+	ret = sysfs_create_group(&dev->dev.kobj, &k90_attr_group);
+	if (ret != 0)
+		goto fail_sysfs;
+
+	return 0;
+
+fail_sysfs:
+	k90->record_led.removed = true;
+	led_classdev_unregister(&k90->record_led.cdev);
+	cancel_work_sync(&k90->record_led.work);
+fail_record_led:
+	kfree(k90->record_led.cdev.name);
+fail_record_led_alloc:
+	kfree(k90);
+fail_drvdata:
+	drvdata->k90 = NULL;
+	return ret;
+}
+
+static void k90_cleanup_backlight(struct hid_device *dev)
+{
+	struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
+
+	if (drvdata->backlight) {
+		drvdata->backlight->removed = true;
+		led_classdev_unregister(&drvdata->backlight->cdev);
+		cancel_work_sync(&drvdata->backlight->work);
+		kfree(drvdata->backlight->cdev.name);
+		kfree(drvdata->backlight);
+	}
+}
+
+static void k90_cleanup_macro_functions(struct hid_device *dev)
+{
+	struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
+	struct k90_drvdata *k90 = drvdata->k90;
+
+	if (k90) {
+		sysfs_remove_group(&dev->dev.kobj, &k90_attr_group);
+
+		k90->record_led.removed = true;
+		led_classdev_unregister(&k90->record_led.cdev);
+		cancel_work_sync(&k90->record_led.work);
+		kfree(k90->record_led.cdev.name);
+
+		kfree(k90);
+	}
+}
+
+static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id)
+{
+	int ret;
+	unsigned long quirks = id->driver_data;
+	struct corsair_drvdata *drvdata;
+	struct usb_interface *usbif = to_usb_interface(dev->dev.parent);
+
+	drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata),
+			       GFP_KERNEL);
+	if (drvdata == NULL)
+		return -ENOMEM;
+	drvdata->quirks = quirks;
+	hid_set_drvdata(dev, drvdata);
+
+	ret = hid_parse(dev);
+	if (ret != 0) {
+		hid_err(dev, "parse failed\n");
+		return ret;
+	}
+	ret = hid_hw_start(dev, HID_CONNECT_DEFAULT);
+	if (ret != 0) {
+		hid_err(dev, "hw start failed\n");
+		return ret;
+	}
+
+	if (usbif->cur_altsetting->desc.bInterfaceNumber == 0) {
+		if (quirks & CORSAIR_USE_K90_MACRO) {
+			ret = k90_init_macro_functions(dev);
+			if (ret != 0)
+				hid_warn(dev, "Failed to initialize K90 macro functions.\n");
+		}
+		if (quirks & CORSAIR_USE_K90_BACKLIGHT) {
+			ret = k90_init_backlight(dev);
+			if (ret != 0)
+				hid_warn(dev, "Failed to initialize K90 backlight.\n");
+		}
+	}
+
+	return 0;
+}
+
+static void corsair_remove(struct hid_device *dev)
+{
+	k90_cleanup_macro_functions(dev);
+	k90_cleanup_backlight(dev);
+
+	hid_hw_stop(dev);
+}
+
+static int corsair_event(struct hid_device *dev, struct hid_field *field,
+			 struct hid_usage *usage, __s32 value)
+{
+	struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
+
+	if (!drvdata->k90)
+		return 0;
+
+	switch (usage->hid & HID_USAGE) {
+	case CORSAIR_USAGE_MACRO_RECORD_START:
+		drvdata->k90->record_led.brightness = 1;
+		break;
+	case CORSAIR_USAGE_MACRO_RECORD_STOP:
+		drvdata->k90->record_led.brightness = 0;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int corsair_input_mapping(struct hid_device *dev,
+				 struct hid_input *input,
+				 struct hid_field *field,
+				 struct hid_usage *usage, unsigned long **bit,
+				 int *max)
+{
+	int gkey;
+
+	gkey = corsair_usage_to_gkey(usage->hid & HID_USAGE);
+	if (gkey != 0) {
+		hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+				    corsair_gkey_map[gkey - 1]);
+		return 1;
+	}
+	if ((usage->hid & HID_USAGE) >= CORSAIR_USAGE_SPECIAL_MIN &&
+	    (usage->hid & HID_USAGE) <= CORSAIR_USAGE_SPECIAL_MAX) {
+		switch (usage->hid & HID_USAGE) {
+		case CORSAIR_USAGE_MACRO_RECORD_START:
+			hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+					    corsair_record_keycodes[0]);
+			return 1;
+
+		case CORSAIR_USAGE_MACRO_RECORD_STOP:
+			hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+					    corsair_record_keycodes[1]);
+			return 1;
+
+		case CORSAIR_USAGE_M1:
+			hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+					    corsair_profile_keycodes[0]);
+			return 1;
+
+		case CORSAIR_USAGE_M2:
+			hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+					    corsair_profile_keycodes[1]);
+			return 1;
+
+		case CORSAIR_USAGE_M3:
+			hid_map_usage_clear(input, usage, bit, max, EV_KEY,
+					    corsair_profile_keycodes[2]);
+			return 1;
+
+		default:
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static const struct hid_device_id corsair_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90),
+		.driver_data = CORSAIR_USE_K90_MACRO |
+			       CORSAIR_USE_K90_BACKLIGHT },
+	{}
+};
+
+MODULE_DEVICE_TABLE(hid, corsair_devices);
+
+static struct hid_driver corsair_driver = {
+	.name = "corsair",
+	.id_table = corsair_devices,
+	.probe = corsair_probe,
+	.event = corsair_event,
+	.remove = corsair_remove,
+	.input_mapping = corsair_input_mapping,
+};
+
+static int __init corsair_init(void)
+{
+	return hid_register_driver(&corsair_driver);
+}
+
+static void corsair_exit(void)
+{
+	hid_unregister_driver(&corsair_driver);
+}
+
+module_init(corsair_init);
+module_exit(corsair_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Clement Vuchener");
+MODULE_DESCRIPTION("HID driver for Corsair devices");
diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index ce0644424f58..1d78ba3b799e 100644
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -234,6 +234,58 @@ static __u8 pid0011_rdesc_fixed[] = {
 	0xC0                /*  End Collection                  */
 };
 
+static __u8 pid0006_rdesc_fixed[] = {
+	0x05, 0x01,        /* Usage Page (Generic Desktop)	*/
+	0x09, 0x04,        /* Usage (Joystick)			*/
+	0xA1, 0x01,        /* Collection (Application)		*/
+	0xA1, 0x02,        /*   Collection (Logical)		*/
+	0x75, 0x08,        /*     Report Size (8)		*/
+	0x95, 0x05,        /*     Report Count (5)		*/
+	0x15, 0x00,        /*     Logical Minimum (0)		*/
+	0x26, 0xFF, 0x00,  /*     Logical Maximum (255)		*/
+	0x35, 0x00,        /*     Physical Minimum (0)		*/
+	0x46, 0xFF, 0x00,  /*     Physical Maximum (255)	*/
+	0x09, 0x30,        /*     Usage (X)			*/
+	0x09, 0x33,        /*     Usage (Ry)			*/
+	0x09, 0x32,        /*     Usage (Z)			*/
+	0x09, 0x31,        /*     Usage (Y)			*/
+	0x09, 0x34,        /*     Usage (Ry)			*/
+	0x81, 0x02,        /*     Input (Variable)		*/
+	0x75, 0x04,        /*     Report Size (4)		*/
+	0x95, 0x01,        /*     Report Count (1)		*/
+	0x25, 0x07,        /*     Logical Maximum (7)		*/
+	0x46, 0x3B, 0x01,  /*     Physical Maximum (315)	*/
+	0x65, 0x14,        /*     Unit (Centimeter)		*/
+	0x09, 0x39,        /*     Usage (Hat switch)		*/
+	0x81, 0x42,        /*     Input (Variable)		*/
+	0x65, 0x00,        /*     Unit (None)			*/
+	0x75, 0x01,        /*     Report Size (1)		*/
+	0x95, 0x0C,        /*     Report Count (12)		*/
+	0x25, 0x01,        /*     Logical Maximum (1)		*/
+	0x45, 0x01,        /*     Physical Maximum (1)		*/
+	0x05, 0x09,        /*     Usage Page (Button)		*/
+	0x19, 0x01,        /*     Usage Minimum (0x01)		*/
+	0x29, 0x0C,        /*     Usage Maximum (0x0C)		*/
+	0x81, 0x02,        /*     Input (Variable)		*/
+	0x06, 0x00, 0xFF,  /*     Usage Page (Vendor Defined)	*/
+	0x75, 0x01,        /*     Report Size (1)		*/
+	0x95, 0x08,        /*     Report Count (8)		*/
+	0x25, 0x01,        /*     Logical Maximum (1)		*/
+	0x45, 0x01,        /*     Physical Maximum (1)		*/
+	0x09, 0x01,        /*     Usage (0x01)			*/
+	0x81, 0x02,        /*     Input (Variable)		*/
+	0xC0,              /*   End Collection			*/
+	0xA1, 0x02,        /*   Collection (Logical)		*/
+	0x75, 0x08,        /*     Report Size (8)		*/
+	0x95, 0x07,        /*     Report Count (7)		*/
+	0x46, 0xFF, 0x00,  /*     Physical Maximum (255)	*/
+	0x26, 0xFF, 0x00,  /*     Logical Maximum (255)		*/
+	0x09, 0x02,        /*     Usage (0x02)			*/
+	0x91, 0x02,        /*     Output (Variable)		*/
+	0xC0,              /*   End Collection			*/
+	0xC0               /* End Collection			*/
+};
+
 static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 				unsigned int *rsize)
 {
@@ -244,6 +296,12 @@ static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 			*rsize = sizeof(pid0011_rdesc_fixed);
 		}
 		break;
+	case 0x0006:
+		if (*rsize == sizeof(pid0006_rdesc_fixed)) {
+			rdesc = pid0006_rdesc_fixed;
+			*rsize = sizeof(pid0006_rdesc_fixed);
+		}
+		break;
 	}
 	return rdesc;
 }
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index d0bd13b62dc2..6e3848a8d8dd 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -27,7 +27,7 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		hid_info(hdev, "Fixing up Elecom BM084 report descriptor\n");
 		rdesc[47] = 0x00;
 	}
-    return rdesc;
+	return rdesc;
 }
 
 static const struct hid_device_id elecom_devices[] = {
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index f769208276ae..ac1feea51be3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -251,6 +251,9 @@
 #define USB_DEVICE_ID_CODEMERCS_IOW_FIRST	0x1500
 #define USB_DEVICE_ID_CODEMERCS_IOW_LAST	0x15ff
 
+#define USB_VENDOR_ID_CORSAIR		0x1b1c
+#define USB_DEVICE_ID_CORSAIR_K90	0x1b02
+
 #define USB_VENDOR_ID_CREATIVELABS	0x041e
 #define USB_DEVICE_ID_PRODIKEYS_PCMIDI	0x2801
 
@@ -288,6 +291,7 @@
 #define USB_DEVICE_ID_DMI_ENC		0x5fab
 
 #define USB_VENDOR_ID_DRAGONRISE	0x0079
+#define USB_DEVICE_ID_DRAGONRISE_WIIU	0x1800
 
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
@@ -510,6 +514,7 @@
 
 #define USB_VENDOR_ID_ITE               0x048d
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA   0x8386
+#define USB_DEVICE_ID_ITE_LENOVO_YOGA2  0x8350
 
 #define USB_VENDOR_ID_JABRA		0x0b0e
 #define USB_DEVICE_ID_JABRA_SPEAK_410	0x0412
@@ -646,6 +651,7 @@
 
 #define USB_VENDOR_ID_MADCATZ		0x0738
 #define USB_DEVICE_ID_MADCATZ_BEATPAD	0x4540
+#define USB_DEVICE_ID_MADCATZ_RAT5	0x1705
 #define USB_DEVICE_ID_MADCATZ_RAT9	0x1709
 
 #define USB_VENDOR_ID_MCC		0x09db
@@ -679,6 +685,7 @@
 #define USB_DEVICE_ID_MS_TOUCH_COVER_2   0x07a7
 #define USB_DEVICE_ID_MS_TYPE_COVER_2    0x07a9
 #define USB_DEVICE_ID_MS_TYPE_COVER_PRO_3    0x07dc
+#define USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2  0x07e2
 #define USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP 0x07dd
 #define USB_DEVICE_ID_MS_TYPE_COVER_3    0x07de
 #define USB_DEVICE_ID_MS_POWER_COVER     0x07da
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 5332fb7d072a..c20ac76c0a8c 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -620,6 +620,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 			usage->code == ABS_Y || usage->code == ABS_Z ||
 			usage->code == ABS_RZ)) {
 		switch (hdev->product) {
+		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
 		case USB_DEVICE_ID_LOGITECH_WHEEL:
 		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
 		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
@@ -658,10 +659,18 @@ static int lg_event(struct hid_device *hdev, struct hid_field *field,
 
 static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
+	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
+	__u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
 	struct lg_drv_data *drv_data;
 	int ret;
 
+	/* Only work with the 1st interface (G29 presents multiple) */
+	if (iface_num != 0) {
+		dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);
+		return -ENODEV;
+	}
+
 	drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
 	if (!drv_data) {
 		hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 02cec83caac3..fbddcb37ae98 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -45,7 +45,8 @@
 #define LG4FF_MODE_G25_IDX 3
 #define LG4FF_MODE_DFGT_IDX 4
 #define LG4FF_MODE_G27_IDX 5
-#define LG4FF_MODE_MAX_IDX 6
+#define LG4FF_MODE_G29_IDX 6
+#define LG4FF_MODE_MAX_IDX 7
 
 #define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX)
 #define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX)
@@ -53,6 +54,7 @@
 #define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX)
 #define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX)
 #define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX)
+#define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX)
 
 #define LG4FF_DFEX_TAG "DF-EX"
 #define LG4FF_DFEX_NAME "Driving Force / Formula EX"
@@ -62,6 +64,8 @@
 #define LG4FF_G25_NAME "G25 Racing Wheel"
 #define LG4FF_G27_TAG "G27"
 #define LG4FF_G27_NAME "G27 Racing Wheel"
+#define LG4FF_G29_TAG "G29"
+#define LG4FF_G29_NAME "G29 Racing Wheel"
 #define LG4FF_DFGT_TAG "DFGT"
 #define LG4FF_DFGT_NAME "Driving Force GT"
 
@@ -114,16 +118,12 @@ struct lg4ff_compat_mode_switch {
 };
 
 struct lg4ff_wheel_ident_info {
+	const u32 modes;
 	const u16 mask;
 	const u16 result;
 	const u16 real_product_id;
 };
 
-struct lg4ff_wheel_ident_checklist {
-	const u32 count;
-	const struct lg4ff_wheel_ident_info *models[];
-};
-
 struct lg4ff_multimode_wheel {
 	const u16 product_id;
 	const u32 alternate_modes;
@@ -144,6 +144,7 @@ static const struct lg4ff_wheel lg4ff_devices[] = {
 	{USB_DEVICE_ID_LOGITECH_G25_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
 	{USB_DEVICE_ID_LOGITECH_DFGT_WHEEL,  lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
 	{USB_DEVICE_ID_LOGITECH_G27_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
+	{USB_DEVICE_ID_LOGITECH_G29_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
 	{USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL},
 	{USB_DEVICE_ID_LOGITECH_WII_WHEEL,   lg4ff_wheel_effects, 40, 270, NULL}
 };
@@ -161,6 +162,9 @@ static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = {
 	{USB_DEVICE_ID_LOGITECH_G27_WHEEL,
 	 LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
 	 LG4FF_G27_TAG, LG4FF_G27_NAME},
+	{USB_DEVICE_ID_LOGITECH_G29_WHEEL,
+	 LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
+	 LG4FF_G29_TAG, LG4FF_G29_NAME},
 };
 
 static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = {
@@ -169,41 +173,61 @@ static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = {
 	[LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME},
 	[LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME},
 	[LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME},
-	[LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME}
+	[LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME},
+	[LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME},
 };
 
 /* Multimode wheel identificators */
 static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = {
+	LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
 	0xf000,
 	0x1000,
 	USB_DEVICE_ID_LOGITECH_DFP_WHEEL
 };
 
 static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = {
+	LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
 	0xff00,
 	0x1200,
 	USB_DEVICE_ID_LOGITECH_G25_WHEEL
 };
 
 static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = {
+	LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
 	0xfff0,
 	0x1230,
 	USB_DEVICE_ID_LOGITECH_G27_WHEEL
 };
 
 static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = {
+	LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
 	0xff00,
 	0x1300,
 	USB_DEVICE_ID_LOGITECH_DFGT_WHEEL
 };
 
+static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = {
+	LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
+	0xfff8,
+	0x1350,
+	USB_DEVICE_ID_LOGITECH_G29_WHEEL
+};
+
+static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = {
+	LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
+	0xff00,
+	0x8900,
+	USB_DEVICE_ID_LOGITECH_G29_WHEEL
+};
+
 /* Multimode wheel identification checklists */
-static const struct lg4ff_wheel_ident_checklist lg4ff_main_checklist = {
-	4,
-	{&lg4ff_dfgt_ident_info,
-	 &lg4ff_g27_ident_info,
-	 &lg4ff_g25_ident_info,
-	 &lg4ff_dfp_ident_info}
+static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = {
+	&lg4ff_g29_ident_info,
+	&lg4ff_g29_ident_info2,
+	&lg4ff_dfgt_ident_info,
+	&lg4ff_g27_ident_info,
+	&lg4ff_g25_ident_info,
+	&lg4ff_dfp_ident_info
 };
 
 /* Compatibility mode switching commands */
@@ -238,6 +262,12 @@ static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = {
 	 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00}	/* Switch mode to G27 with detach */
 };
 
+static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = {
+	2,
+	{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,	/* Revert mode upon USB reset */
+	 0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00}	/* Switch mode to G29 with detach */
+};
+
 /* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */
 static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = {
 	1,
@@ -651,6 +681,23 @@ static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(cons
 			return NULL;
 		}
 		break;
+	case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
+		switch (target_product_id) {
+		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+			return &lg4ff_mode_switch_ext09_dfp;
+		case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
+			return &lg4ff_mode_switch_ext09_dfgt;
+		case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
+			return &lg4ff_mode_switch_ext09_g25;
+		case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
+			return &lg4ff_mode_switch_ext09_g27;
+		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
+			return &lg4ff_mode_switch_ext09_g29;
+		/* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */
+		default:
+			return NULL;
+		}
+		break;
 	case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
 		switch (target_product_id) {
 		case USB_DEVICE_ID_LOGITECH_WHEEL:
@@ -1037,41 +1084,28 @@ static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cde
 
 static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice)
 {
-	const struct lg4ff_wheel_ident_checklist *checklist;
-	int i, from_idx, to_idx;
+	u32 current_mode;
+	int i;
 
-	switch (reported_product_id) {
-	case USB_DEVICE_ID_LOGITECH_WHEEL:
-	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
-		checklist = &lg4ff_main_checklist;
-		from_idx = 0;
-		to_idx = checklist->count - 1;
-		break;
-	case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
-		checklist = &lg4ff_main_checklist;
-		from_idx = 0;
-		to_idx = checklist->count - 2; /* End identity check at G25 */
-		break;
-	case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
-		checklist = &lg4ff_main_checklist;
-		from_idx = 1; /* Start identity check at G27 */
-		to_idx = checklist->count - 3; /* End identity check at G27 */
-		break;
-	case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
-		checklist = &lg4ff_main_checklist;
-		from_idx = 0;
-		to_idx = checklist->count - 4; /* End identity check at DFGT */
-		break;
-	default:
-		return 0;
+	/* identify current mode from USB PID */
+	for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) {
+		dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id);
+		if (reported_product_id == lg4ff_alternate_modes[i].product_id)
+			break;
 	}
 
-	for (i = from_idx; i <= to_idx; i++) {
-		const u16 mask = checklist->models[i]->mask;
-		const u16 result = checklist->models[i]->result;
-		const u16 real_product_id = checklist->models[i]->real_product_id;
+	if (i == ARRAY_SIZE(lg4ff_alternate_modes))
+		return 0;
+
+	current_mode = BIT(i);
+
+	for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) {
+		const u16 mask = lg4ff_main_checklist[i]->mask;
+		const u16 result = lg4ff_main_checklist[i]->result;
+		const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id;
 
-		if ((bcdDevice & mask) == result) {
+		if ((current_mode & lg4ff_main_checklist[i]->modes) && \
+				(bcdDevice & mask) == result) {
 			dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id);
 			return real_product_id;
 		}
@@ -1246,12 +1280,13 @@ int lg4ff_init(struct hid_device *hid)
 		entry->wdata.set_range(hid, entry->wdata.range);
 
 #ifdef CONFIG_LEDS_CLASS
-	/* register led subsystem - G27 only */
+	/* register led subsystem - G27/G29 only */
 	entry->wdata.led_state = 0;
 	for (j = 0; j < 5; j++)
 		entry->wdata.led[j] = NULL;
 
-	if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL) {
+	if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL ||
+			lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) {
 		struct led_classdev *led;
 		size_t name_sz;
 		char *name;
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index a25f562f2d7b..5fd97860aec4 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -33,6 +33,11 @@ module_param(disable_raw_mode, bool, 0644);
 MODULE_PARM_DESC(disable_raw_mode,
 	"Disable Raw mode reporting for touchpads and keep firmware gestures.");
 
+static bool disable_tap_to_click;
+module_param(disable_tap_to_click, bool, 0644);
+MODULE_PARM_DESC(disable_tap_to_click,
+	"Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
+
 #define REPORT_ID_HIDPP_SHORT			0x10
 #define REPORT_ID_HIDPP_LONG			0x11
 
@@ -41,10 +46,15 @@ MODULE_PARM_DESC(disable_raw_mode,
 
 #define HIDPP_QUIRK_CLASS_WTP			BIT(0)
 #define HIDPP_QUIRK_CLASS_M560			BIT(1)
+#define HIDPP_QUIRK_CLASS_K400			BIT(2)
 
 /* bits 2..20 are reserved for classes */
-#define HIDPP_QUIRK_DELAYED_INIT		BIT(21)
+#define HIDPP_QUIRK_CONNECT_EVENTS		BIT(21)
 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS	BIT(22)
+#define HIDPP_QUIRK_NO_HIDINPUT			BIT(23)
+
+#define HIDPP_QUIRK_DELAYED_INIT		(HIDPP_QUIRK_NO_HIDINPUT | \
+						 HIDPP_QUIRK_CONNECT_EVENTS)
 
 /*
  * There are two hidpp protocols in use, the first version hidpp10 is known
@@ -553,6 +563,52 @@ static char *hidpp_get_device_name(struct hidpp_device *hidpp)
 }
 
 /* -------------------------------------------------------------------------- */
+/* 0x6010: Touchpad FW items                                                  */
+/* -------------------------------------------------------------------------- */
+
+#define HIDPP_PAGE_TOUCHPAD_FW_ITEMS			0x6010
+
+#define CMD_TOUCHPAD_FW_ITEMS_SET			0x10
+
+struct hidpp_touchpad_fw_items {
+	uint8_t presence;
+	uint8_t desired_state;
+	uint8_t state;
+	uint8_t persistent;
+};
+
+/**
+ * send a set state command to the device by reading the current items->state
+ * field. items is then filled with the current state.
+ */
+static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp,
+				       u8 feature_index,
+				       struct hidpp_touchpad_fw_items *items)
+{
+	struct hidpp_report response;
+	int ret;
+	u8 *params = (u8 *)response.fap.params;
+
+	ret = hidpp_send_fap_command_sync(hidpp, feature_index,
+		CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response);
+
+	if (ret > 0) {
+		hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
+			__func__, ret);
+		return -EPROTO;
+	}
+	if (ret)
+		return ret;
+
+	items->presence = params[0];
+	items->desired_state = params[1];
+	items->state = params[2];
+	items->persistent = params[3];
+
+	return 0;
+}
+
+/* -------------------------------------------------------------------------- */
 /* 0x6100: TouchPadRawXY                                                      */
 /* -------------------------------------------------------------------------- */
 
@@ -1132,6 +1188,75 @@ static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return -1;
 }
 
+/* ------------------------------------------------------------------------- */
+/* Logitech K400 devices                                                     */
+/* ------------------------------------------------------------------------- */
+
+/*
+ * The Logitech K400 keyboard has an embedded touchpad which is seen
+ * as a mouse from the OS point of view. There is a hardware shortcut to disable
+ * tap-to-click but the setting is not remembered accross reset, annoying some
+ * users.
+ *
+ * We can toggle this feature from the host by using the feature 0x6010:
+ * Touchpad FW items
+ */
+
+struct k400_private_data {
+	u8 feature_index;
+};
+
+static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
+{
+	struct k400_private_data *k400 = hidpp->private_data;
+	struct hidpp_touchpad_fw_items items = {};
+	int ret;
+	u8 feature_type;
+
+	if (!k400->feature_index) {
+		ret = hidpp_root_get_feature(hidpp,
+			HIDPP_PAGE_TOUCHPAD_FW_ITEMS,
+			&k400->feature_index, &feature_type);
+		if (ret)
+			/* means that the device is not powered up */
+			return ret;
+	}
+
+	ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int k400_allocate(struct hid_device *hdev)
+{
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+	struct k400_private_data *k400;
+
+	k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data),
+			    GFP_KERNEL);
+	if (!k400)
+		return -ENOMEM;
+
+	hidpp->private_data = k400;
+
+	return 0;
+};
+
+static int k400_connect(struct hid_device *hdev, bool connected)
+{
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+
+	if (!connected)
+		return 0;
+
+	if (!disable_tap_to_click)
+		return 0;
+
+	return k400_disable_tap_to_click(hidpp);
+}
+
 /* -------------------------------------------------------------------------- */
 /* Generic HID++ devices                                                      */
 /* -------------------------------------------------------------------------- */
@@ -1205,7 +1330,7 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
 	if (unlikely(hidpp_report_is_connect_event(report))) {
 		atomic_set(&hidpp->connected,
 				!(report->rap.params[0] & (1 << 6)));
-		if ((hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) &&
+		if ((hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) &&
 		    (schedule_work(&hidpp->work) == 0))
 			dbg_hid("%s: connect event already queued\n", __func__);
 		return 1;
@@ -1330,23 +1455,30 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
 		ret = m560_send_config_command(hdev, connected);
 		if (ret)
 			return;
+	} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
+		ret = k400_connect(hdev, connected);
+		if (ret)
+			return;
 	}
 
 	if (!connected || hidpp->delayed_input)
 		return;
 
+	/* the device is already connected, we can ask for its name and
+	 * protocol */
 	if (!hidpp->protocol_major) {
 		ret = !hidpp_is_connected(hidpp);
 		if (ret) {
 			hid_err(hdev, "Can not get the protocol version.\n");
 			return;
 		}
+		hid_info(hdev, "HID++ %u.%u device connected.\n",
+			 hidpp->protocol_major, hidpp->protocol_minor);
 	}
 
-	/* the device is already connected, we can ask for its name and
-	 * protocol */
-	hid_info(hdev, "HID++ %u.%u device connected.\n",
-		 hidpp->protocol_major, hidpp->protocol_minor);
+	if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT))
+		/* if HID created the input nodes for us, we can stop now */
+		return;
 
 	if (!hidpp->name || hidpp->name == hdev->name) {
 		name = hidpp_get_device_name(hidpp);
@@ -1399,7 +1531,8 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	if (disable_raw_mode) {
 		hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
-		hidpp->quirks &= ~HIDPP_QUIRK_DELAYED_INIT;
+		hidpp->quirks &= ~HIDPP_QUIRK_CONNECT_EVENTS;
+		hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT;
 	}
 
 	if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
@@ -1410,6 +1543,10 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		ret = m560_allocate(hdev);
 		if (ret)
 			goto allocate_fail;
+	} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
+		ret = k400_allocate(hdev);
+		if (ret)
+			goto allocate_fail;
 	}
 
 	INIT_WORK(&hidpp->work, delayed_work_cb);
@@ -1450,7 +1587,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	/* Block incoming packets */
 	hid_device_io_stop(hdev);
 
-	if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT)
+	if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
 		connect_mask &= ~HID_CONNECT_HIDINPUT;
 
 	ret = hid_hw_start(hdev, connect_mask);
@@ -1459,7 +1596,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto hid_hw_start_fail;
 	}
 
-	if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) {
+	if (hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) {
 		/* Allow incoming packets */
 		hid_device_io_start(hdev);
 
@@ -1504,6 +1641,10 @@ static const struct hid_device_id hidpp_devices[] = {
 	  HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
 		USB_VENDOR_ID_LOGITECH, 0x402d),
 	  .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
+	{ /* Keyboard logitech K400 */
+	  HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
+		USB_VENDOR_ID_LOGITECH, 0x4024),
+	  .driver_data = HIDPP_QUIRK_CONNECT_EVENTS | HIDPP_QUIRK_CLASS_K400 },
 
 	{ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
 		USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 9aa3515090a7..77a2cf3e4afe 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -278,6 +278,8 @@ static const struct hid_device_id ms_devices[] = {
 		.driver_data = MS_DUPLICATE_USAGES },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3),
 		.driver_data = MS_HIDINPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2),
+		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP),
 		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3),
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 2ed42d8f805b..3d664d01305e 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -309,6 +309,41 @@ static struct attribute_group mt_attribute_group = {
 	.attrs = sysfs_attrs
 };
 
+static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
+{
+	struct mt_device *td = hid_get_drvdata(hdev);
+	int ret, size = hid_report_len(report);
+	u8 *buf;
+
+	/*
+	 * Only fetch the feature report if initial reports are not already
+	 * been retrieved. Currently this is only done for Windows 8 touch
+	 * devices.
+	 */
+	if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
+		return;
+	if (td->mtclass.name != MT_CLS_WIN_8)
+		return;
+
+	buf = hid_alloc_report_buf(report, GFP_KERNEL);
+	if (!buf)
+		return;
+
+	ret = hid_hw_raw_request(hdev, report->id, buf, size,
+				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+	if (ret < 0) {
+		dev_warn(&hdev->dev, "failed to fetch feature %d\n",
+			 report->id);
+	} else {
+		ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
+					   size, 0);
+		if (ret)
+			dev_warn(&hdev->dev, "failed to report feature\n");
+	}
+
+	kfree(buf);
+}
+
 static void mt_feature_mapping(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage)
 {
@@ -327,6 +362,8 @@ static void mt_feature_mapping(struct hid_device *hdev,
 
 		break;
 	case HID_DG_CONTACTMAX:
+		mt_get_feature(hdev, field->report);
+
 		td->maxcontact_report_id = field->report->id;
 		td->maxcontacts = field->value[0];
 		if (!td->maxcontacts &&
@@ -343,6 +380,7 @@ static void mt_feature_mapping(struct hid_device *hdev,
 			break;
 		}
 
+		mt_get_feature(hdev, field->report);
 		if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
 			td->is_buttonpad = true;
 
@@ -976,6 +1014,9 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
 		case HID_DG_TOUCHSCREEN:
 			/* we do not set suffix = "Touchscreen" */
 			break;
+		case HID_DG_TOUCHPAD:
+			suffix = "Touchpad";
+			break;
 		case HID_GD_SYSTEM_CONTROL:
 			suffix = "System Control";
 			break;
@@ -1036,8 +1077,13 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		 * reports. Fortunately, the Win8 spec says that all touches
 		 * should be sent during each report, making the initialization
 		 * of input reports unnecessary.
+		 *
+		 * In addition some touchpads do not behave well if we read
+		 * all feature reports from them. Instead we prevent
+		 * initial report fetching and then selectively fetch each
+		 * report we are interested in.
 		 */
-		hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
+		hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
 
 	td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
 	if (!td) {
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index e3e98ccf137b..3a207c0ac0e3 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -427,7 +427,7 @@ static int pcmidi_handle_report4(struct pcmidi_snd *pm, u8 *data)
 					pm->midi_octave = 2;
 				dbg_hid("pcmidi mode: %d octave: %d\n",
 					pm->midi_mode, pm->midi_octave);
-			    continue;
+				continue;
 			} else
 				key = KEY_MESSENGER;
 			break;
@@ -695,7 +695,7 @@ static int pcmidi_snd_initialise(struct pcmidi_snd *pm)
 	if (err < 0) {
 		pk_error("failed to register pc-midi sound card: error %d\n",
 			 err);
-			 goto fail_register;
+		goto fail_register;
 	}
 
 	dbg_hid("pcmidi_snd_initialise finished ok\n");
diff --git a/drivers/hid/hid-saitek.c b/drivers/hid/hid-saitek.c
index a014f21275d8..2f84b26f1167 100644
--- a/drivers/hid/hid-saitek.c
+++ b/drivers/hid/hid-saitek.c
@@ -177,6 +177,8 @@ static int saitek_event(struct hid_device *hdev, struct hid_field *field,
 static const struct hid_device_id saitek_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000),
 		.driver_data = SAITEK_FIX_PS1000 },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5),
+		.driver_data = SAITEK_RELEASE_MODE_RAT7 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD),
 		.driver_data = SAITEK_RELEASE_MODE_RAT7 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7),
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index a76eb2a0a987..92870cdb52d9 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -593,6 +593,20 @@ static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		}
 	}
 
+	/* Checks if the report descriptor of Thinkpad Helix 2 has a logical
+	 * minimum for magnetic flux axis greater than the maximum */
+	if (hdev->product == USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA &&
+		*rsize == 2558 && rdesc[913] == 0x17 && rdesc[914] == 0x40 &&
+		rdesc[915] == 0x81 && rdesc[916] == 0x08 &&
+		rdesc[917] == 0x00 && rdesc[918] == 0x27 &&
+		rdesc[921] == 0x07 && rdesc[922] == 0x00) {
+		/* Sets negative logical minimum for mag x, y and z */
+		rdesc[914] = rdesc[935] = rdesc[956] = 0xc0;
+		rdesc[915] = rdesc[936] = rdesc[957] = 0x7e;
+		rdesc[916] = rdesc[937] = rdesc[958] = 0xf7;
+		rdesc[917] = rdesc[938] = rdesc[959] = 0xff;
+	}
+
 	return rdesc;
 }
 
@@ -646,8 +660,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
 						      GFP_KERNEL);
 	if (sd->hid_sensor_hub_client_devs == NULL) {
 		hid_err(hdev, "Failed to allocate memory for mfd cells\n");
-			ret = -ENOMEM;
-			goto err_stop_hw;
+		ret = -ENOMEM;
+		goto err_stop_hw;
 	}
 
 	for (i = 0; i < hdev->maxcollection; ++i) {
@@ -684,8 +698,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
 					      collection->usage);
 			if (name == NULL) {
 				hid_err(hdev, "Failed MFD device name\n");
-					ret = -ENOMEM;
-					goto err_stop_hw;
+				ret = -ENOMEM;
+				goto err_stop_hw;
 			}
 			sd->hid_sensor_hub_client_devs[
 				sd->hid_sensor_client_cnt].name = name;
@@ -777,6 +791,9 @@ static const struct hid_device_id sensor_hub_devices[] = {
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
 			USB_DEVICE_ID_ITE_LENOVO_YOGA),
 			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
+			USB_DEVICE_ID_ITE_LENOVO_YOGA2),
+			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID,
 		     HID_ANY_ID) },
 	{ }
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 2871f3c81a4c..10bd8e6e4c9c 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -1028,6 +1028,7 @@ static int i2c_hid_probe(struct i2c_client *client,
 
 	snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
 		 client->name, hid->vendor, hid->product);
+	strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
 
 	ret = hid_add_device(hid);
 	if (ret) {
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 1dff8f0015ba..94bb137abe32 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -71,6 +71,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
@@ -91,6 +92,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER, HID_QUIRK_NO_INIT_REPORTS },
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 9a4912c1828d..e06af5b9f59e 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -211,7 +211,7 @@ static void wacom_usage_mapping(struct hid_device *hdev,
 	 * Bamboo models do not support HID_DG_CONTACTMAX.
 	 * And, Bamboo Pen only descriptor contains touch.
 	 */
-	if (features->type != BAMBOO_PT) {
+	if (features->type > BAMBOO_PT) {
 		/* ISDv4 touch devices at least supports one touch point */
 		if (finger && !features->touch_max)
 			features->touch_max = 1;
@@ -222,7 +222,8 @@ static void wacom_usage_mapping(struct hid_device *hdev,
 		features->x_max = field->logical_maximum;
 		if (finger) {
 			features->x_phy = field->physical_maximum;
-			if (features->type != BAMBOO_PT) {
+			if ((features->type != BAMBOO_PT) &&
+			    (features->type != BAMBOO_TOUCH)) {
 				features->unit = field->unit;
 				features->unitExpo = field->unit_exponent;
 			}
@@ -232,7 +233,8 @@ static void wacom_usage_mapping(struct hid_device *hdev,
 		features->y_max = field->logical_maximum;
 		if (finger) {
 			features->y_phy = field->physical_maximum;
-			if (features->type != BAMBOO_PT) {
+			if ((features->type != BAMBOO_PT) &&
+			    (features->type != BAMBOO_TOUCH)) {
 				features->unit = field->unit;
 				features->unitExpo = field->unit_exponent;
 			}
@@ -420,7 +422,7 @@ static int wacom_query_tablet_data(struct hid_device *hdev,
 			/* MT Tablet PC touch */
 			return wacom_set_device_mode(hdev, 3, 4, 4);
 		}
-		else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) {
+		else if (features->type == WACOM_24HDT) {
 			return wacom_set_device_mode(hdev, 18, 3, 2);
 		}
 		else if (features->type == WACOM_27QHDT) {
@@ -430,7 +432,7 @@ static int wacom_query_tablet_data(struct hid_device *hdev,
 			return wacom_set_device_mode(hdev, 2, 2, 2);
 		}
 	} else if (features->device_type & WACOM_DEVICETYPE_PEN) {
-		if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
+		if (features->type <= BAMBOO_PT) {
 			return wacom_set_device_mode(hdev, 2, 2, 2);
 		}
 	}
@@ -1547,15 +1549,16 @@ static void wacom_wireless_work(struct work_struct *work)
 		wacom_wac1->features =
 			*((struct wacom_features *)id->driver_data);
 		wacom_wac1->features.device_type |= WACOM_DEVICETYPE_PEN;
-		if (wacom_wac1->features.type != INTUOSHT &&
-		    wacom_wac1->features.type != BAMBOO_PT)
-			wacom_wac1->features.device_type |= WACOM_DEVICETYPE_PAD;
 		wacom_set_default_phy(&wacom_wac1->features);
 		wacom_calculate_res(&wacom_wac1->features);
 		snprintf(wacom_wac1->pen_name, WACOM_NAME_MAX, "%s (WL) Pen",
 			 wacom_wac1->features.name);
-		snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad",
-			 wacom_wac1->features.name);
+		if (wacom_wac1->features.type < BAMBOO_PEN ||
+		    wacom_wac1->features.type > BAMBOO_PT) {
+			snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad",
+				 wacom_wac1->features.name);
+			wacom_wac1->features.device_type |= WACOM_DEVICETYPE_PAD;
+		}
 		wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
 		wacom_wac1->shared->type = wacom_wac1->features.type;
 		wacom_wac1->pid = wacom_wac->pid;
@@ -1566,7 +1569,8 @@ static void wacom_wireless_work(struct work_struct *work)
 
 		/* Touch interface */
 		if (wacom_wac1->features.touch_max ||
-		    wacom_wac1->features.type == INTUOSHT) {
+		    (wacom_wac1->features.type >= INTUOSHT &&
+		    wacom_wac1->features.type <= BAMBOO_PT)) {
 			wacom_wac2->features =
 				*((struct wacom_features *)id->driver_data);
 			wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
@@ -1575,20 +1579,22 @@ static void wacom_wireless_work(struct work_struct *work)
 			wacom_calculate_res(&wacom_wac2->features);
 			snprintf(wacom_wac2->touch_name, WACOM_NAME_MAX,
 				 "%s (WL) Finger",wacom_wac2->features.name);
-			snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX,
-				 "%s (WL) Pad",wacom_wac2->features.name);
 			if (wacom_wac1->features.touch_max)
 				wacom_wac2->features.device_type |= WACOM_DEVICETYPE_TOUCH;
-			if (wacom_wac1->features.type == INTUOSHT ||
-			    wacom_wac1->features.type == BAMBOO_PT)
+			if (wacom_wac1->features.type >= INTUOSHT &&
+			    wacom_wac1->features.type <= BAMBOO_PT) {
+				snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX,
+					 "%s (WL) Pad",wacom_wac2->features.name);
 				wacom_wac2->features.device_type |= WACOM_DEVICETYPE_PAD;
+			}
 			wacom_wac2->pid = wacom_wac->pid;
 			error = wacom_allocate_inputs(wacom2) ||
 				wacom_register_inputs(wacom2);
 			if (error)
 				goto fail;
 
-			if (wacom_wac1->features.type == INTUOSHT &&
+			if ((wacom_wac1->features.type == INTUOSHT ||
+			    wacom_wac1->features.type == INTUOSHT2) &&
 			    wacom_wac1->features.touch_max)
 				wacom_wac->shared->touch_input = wacom_wac2->touch_input;
 		}
@@ -1812,11 +1818,27 @@ static int wacom_probe(struct hid_device *hdev,
 	/* Note that if query fails it is not a hard failure */
 	wacom_query_tablet_data(hdev, features);
 
+	/* touch only Bamboo doesn't support pen */
+	if ((features->type == BAMBOO_TOUCH) &&
+	    (features->device_type & WACOM_DEVICETYPE_PEN)) {
+		error = -ENODEV;
+		goto fail_hw_start;
+	}
+
+	/* pen only Bamboo neither support touch nor pad */
+	if ((features->type == BAMBOO_PEN) &&
+	    ((features->device_type & WACOM_DEVICETYPE_TOUCH) ||
+	    (features->device_type & WACOM_DEVICETYPE_PAD))) {
+		error = -ENODEV;
+		goto fail_hw_start;
+	}
+
 	if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
 		error = hid_hw_open(hdev);
 
-	if (wacom_wac->features.type == INTUOSHT && 
-	    wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) {
+	if ((wacom_wac->features.type == INTUOSHT ||
+	    wacom_wac->features.type == INTUOSHT2) &&
+	    (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)) {
 			wacom_wac->shared->touch_input = wacom_wac->touch_input;
 	}
 
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 0215ab62bb93..8b29949507d1 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -765,13 +765,15 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
 	/* general pen packet */
 	if ((data[1] & 0xb8) == 0xa0) {
 		t = (data[6] << 2) | ((data[7] >> 6) & 3);
-		if (features->type >= INTUOS4S && features->type <= CINTIQ_HYBRID) {
+		if (features->pressure_max == 2047) {
 			t = (t << 1) | (data[1] & 1);
 		}
 		input_report_abs(input, ABS_PRESSURE, t);
-		input_report_abs(input, ABS_TILT_X,
+		if (features->type != INTUOSHT2) {
+		    input_report_abs(input, ABS_TILT_X,
 				 (((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
-		input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
+		    input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
+		}
 		input_report_key(input, BTN_STYLUS, data[1] & 2);
 		input_report_key(input, BTN_STYLUS2, data[1] & 4);
 		input_report_key(input, BTN_TOUCH, t > 10);
@@ -799,6 +801,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 	    data[0] != WACOM_REPORT_INTUOSREAD &&
 	    data[0] != WACOM_REPORT_INTUOSWRITE &&
 	    data[0] != WACOM_REPORT_INTUOSPAD &&
+	    data[0] != WACOM_REPORT_INTUOS_PEN &&
 	    data[0] != WACOM_REPORT_CINTIQ &&
 	    data[0] != WACOM_REPORT_CINTIQPAD &&
 	    data[0] != WACOM_REPORT_INTUOS5PAD) {
@@ -948,6 +951,27 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 			} else {
 				input_report_abs(input, ABS_MISC, 0);
 			}
+
+		} else if (features->type == CINTIQ_COMPANION_2) {
+			input_report_key(input, BTN_1, (data[1] & 0x02));
+			input_report_key(input, BTN_2, (data[2] & 0x01));
+			input_report_key(input, BTN_3, (data[2] & 0x02));
+			input_report_key(input, BTN_4, (data[2] & 0x04));
+			input_report_key(input, BTN_5, (data[2] & 0x08));
+			input_report_key(input, BTN_6, (data[1] & 0x04));
+
+			input_report_key(input, BTN_7, (data[2] & 0x10));  /* Right  */
+			input_report_key(input, BTN_8, (data[2] & 0x20));  /* Up	 */
+			input_report_key(input, BTN_9, (data[2] & 0x40));  /* Left   */
+			input_report_key(input, BTN_A, (data[2] & 0x80));  /* Down   */
+			input_report_key(input, BTN_0, (data[1] & 0x01));  /* Center */
+
+			if (data[2] | (data[1] & 0x07)) {
+				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+			} else {
+				input_report_abs(input, ABS_MISC, 0);
+			}
+
 		} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
 			int i;
 
@@ -1628,6 +1652,7 @@ static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
 		wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
 		break;
 	case HID_DG_CONTACTCOUNT:
+		wacom_wac->hid_data.cc_report = field->report->id;
 		wacom_wac->hid_data.cc_index = field->index;
 		wacom_wac->hid_data.cc_value_index = usage->usage_index;
 		break;
@@ -1715,7 +1740,32 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
 	struct hid_data* hid_data = &wacom_wac->hid_data;
 
-	if (hid_data->cc_index >= 0) {
+	if (hid_data->cc_report != 0 &&
+	    hid_data->cc_report != report->id) {
+		int i;
+
+		hid_data->cc_report = report->id;
+		hid_data->cc_index = -1;
+		hid_data->cc_value_index = -1;
+
+		for (i = 0; i < report->maxfield; i++) {
+			struct hid_field *field = report->field[i];
+			int j;
+
+			for (j = 0; j < field->maxusage; j++) {
+				if (field->usage[j].hid == HID_DG_CONTACTCOUNT) {
+					hid_data->cc_index = i;
+					hid_data->cc_value_index = j;
+
+					/* break */
+					i = report->maxfield;
+					j = field->maxusage;
+				}
+			}
+		}
+	}
+	if (hid_data->cc_report != 0 &&
+	    hid_data->cc_index >= 0) {
 		struct hid_field *field = report->field[hid_data->cc_index];
 		int value = field->value[hid_data->cc_value_index];
 		if (value)
@@ -1896,7 +1946,7 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 		int y = (data[3] << 4) | (data[4] & 0x0f);
 		int width, height;
 
-		if (features->type >= INTUOSPS && features->type <= INTUOSHT) {
+		if (features->type >= INTUOSPS && features->type <= INTUOSHT2) {
 			width  = data[5] * 100;
 			height = data[6] * 100;
 		} else {
@@ -1924,7 +1974,7 @@ static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
 	struct input_dev *input = wacom->pad_input;
 	struct wacom_features *features = &wacom->features;
 
-	if (features->type == INTUOSHT) {
+	if (features->type == INTUOSHT || features->type == INTUOSHT2) {
 		input_report_key(input, BTN_LEFT, (data[1] & 0x02) != 0);
 		input_report_key(input, BTN_BACK, (data[1] & 0x08) != 0);
 	} else {
@@ -1939,7 +1989,7 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
 {
 	unsigned char *data = wacom->data;
 	int count = data[1] & 0x07;
-	int i;
+	int  touch_changed = 0, i;
 
 	if (data[0] != 0x02)
 	    return 0;
@@ -1949,15 +1999,16 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
 		int offset = (8 * i) + 2;
 		int msg_id = data[offset];
 
-		if (msg_id >= 2 && msg_id <= 17)
+		if (msg_id >= 2 && msg_id <= 17) {
 			wacom_bpt3_touch_msg(wacom, data + offset);
-		else if (msg_id == 128)
+			touch_changed++;
+		} else if (msg_id == 128)
 			wacom_bpt3_button_msg(wacom, data + offset);
 
 	}
 
-	/* only update the touch if we actually have a touchpad */
-	if (wacom->touch_registered) {
+	/* only update touch if we actually have a touchpad and touch data changed */
+	if (wacom->touch_registered && touch_changed) {
 		input_mt_sync_frame(wacom->touch_input);
 		wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
 	}
@@ -2038,7 +2089,12 @@ static int wacom_bpt_pen(struct wacom_wac *wacom)
 
 static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
 {
-	if (len == WACOM_PKGLEN_BBTOUCH)
+	struct wacom_features *features = &wacom->features;
+
+	if ((features->type == INTUOSHT2) &&
+	    (features->device_type & WACOM_DEVICETYPE_PEN))
+		return wacom_intuos_irq(wacom);
+	else if (len == WACOM_PKGLEN_BBTOUCH)
 		return wacom_bpt_touch(wacom);
 	else if (len == WACOM_PKGLEN_BBTOUCH3)
 		return wacom_bpt3_touch(wacom);
@@ -2145,7 +2201,8 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
 	if (connected) {
 		int pid, battery, charging;
 
-		if ((wacom->shared->type == INTUOSHT) &&
+		if ((wacom->shared->type == INTUOSHT ||
+		    wacom->shared->type == INTUOSHT2) &&
 		    wacom->shared->touch_input &&
 		    wacom->shared->touch_max) {
 			input_report_switch(wacom->shared->touch_input,
@@ -2183,7 +2240,8 @@ static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len)
 	if (data[0] != WACOM_REPORT_USB)
 		return 0;
 
-	if (features->type == INTUOSHT &&
+	if ((features->type == INTUOSHT ||
+	    features->type == INTUOSHT2) &&
 	    wacom_wac->shared->touch_input &&
 	    features->touch_max) {
 		input_report_switch(wacom_wac->shared->touch_input,
@@ -2264,6 +2322,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 	case WACOM_27QHD:
 	case DTK:
 	case CINTIQ_HYBRID:
+	case CINTIQ_COMPANION_2:
 		sync = wacom_intuos_irq(wacom_wac);
 		break;
 
@@ -2300,7 +2359,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 		break;
 
 	case BAMBOO_PT:
+	case BAMBOO_PEN:
+	case BAMBOO_TOUCH:
 	case INTUOSHT:
+	case INTUOSHT2:
 		if (wacom_wac->data[0] == WACOM_REPORT_USB)
 			sync = wacom_status_irq(wacom_wac, len);
 		else
@@ -2337,22 +2399,31 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 	}
 }
 
-static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
+static void wacom_setup_basic_pro_pen(struct wacom_wac *wacom_wac)
 {
 	struct input_dev *input_dev = wacom_wac->pen_input;
 
 	input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
 
-	__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
 	__set_bit(BTN_TOOL_PEN, input_dev->keybit);
-	__set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
-	__set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
-	__set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
 	__set_bit(BTN_STYLUS, input_dev->keybit);
 	__set_bit(BTN_STYLUS2, input_dev->keybit);
 
 	input_set_abs_params(input_dev, ABS_DISTANCE,
 			     0, wacom_wac->features.distance_max, 0, 0);
+}
+
+static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
+{
+	struct input_dev *input_dev = wacom_wac->pen_input;
+
+	wacom_setup_basic_pro_pen(wacom_wac);
+
+	__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+	__set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
+	__set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
+	__set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
+
 	input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
 	input_set_abs_params(input_dev, ABS_TILT_X, -64, 63, 0, 0);
 	input_abs_set_res(input_dev, ABS_TILT_X, 57);
@@ -2387,9 +2458,8 @@ void wacom_setup_device_quirks(struct wacom *wacom)
 
 	/* The pen and pad share the same interface on most devices */
 	if (features->type == GRAPHIRE_BT || features->type == WACOM_G4 ||
-	    features->type == DTUS || features->type == WACOM_MO ||
-	    (features->type >= INTUOS3S && features->type <= WACOM_13HD && 
-	     features->type != INTUOSHT)) {
+	    features->type == DTUS ||
+	    (features->type >= INTUOS3S && features->type <= WACOM_MO)) {
 		if (features->device_type & WACOM_DEVICETYPE_PEN)
 			features->device_type |= WACOM_DEVICETYPE_PAD;
 	}
@@ -2406,12 +2476,12 @@ void wacom_setup_device_quirks(struct wacom *wacom)
 	 * interface (PacketSize of WACOM_PKGLEN_BBTOUCH3), override the
 	 * tablet values.
 	 */
-	if ((features->type >= INTUOS5S && features->type <= INTUOSHT) ||
-		(features->type == BAMBOO_PT)) {
+	if ((features->type >= INTUOS5S && features->type <= INTUOSPL) ||
+		(features->type >= INTUOSHT && features->type <= BAMBOO_PT)) {
 		if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
 			if (features->touch_max)
 				features->device_type |= WACOM_DEVICETYPE_TOUCH;
-			if (features->type == BAMBOO_PT || features->type == INTUOSHT)
+			if (features->type >= INTUOSHT || features->type <= BAMBOO_PT)
 				features->device_type |= WACOM_DEVICETYPE_PAD;
 
 			features->x_max = 4096;
@@ -2520,6 +2590,7 @@ int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
 	case CINTIQ:
 	case WACOM_13HD:
 	case CINTIQ_HYBRID:
+	case CINTIQ_COMPANION_2:
 		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
 		input_abs_set_res(input_dev, ABS_Z, 287);
 		__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
@@ -2598,16 +2669,22 @@ int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
 
 	case INTUOSHT:
 	case BAMBOO_PT:
-		__clear_bit(ABS_MISC, input_dev->absbit);
-
+	case BAMBOO_PEN:
+	case INTUOSHT2:
 		__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
-		__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
-		__set_bit(BTN_TOOL_PEN, input_dev->keybit);
-		__set_bit(BTN_STYLUS, input_dev->keybit);
-		__set_bit(BTN_STYLUS2, input_dev->keybit);
-		input_set_abs_params(input_dev, ABS_DISTANCE, 0,
+
+		if (features->type == INTUOSHT2) {
+			wacom_setup_basic_pro_pen(wacom_wac);
+		} else {
+			__clear_bit(ABS_MISC, input_dev->absbit);
+			__set_bit(BTN_TOOL_PEN, input_dev->keybit);
+			__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+			__set_bit(BTN_STYLUS, input_dev->keybit);
+			__set_bit(BTN_STYLUS2, input_dev->keybit);
+			input_set_abs_params(input_dev, ABS_DISTANCE, 0,
 				      features->distance_max,
 				      0, 0);
+		}
 		break;
 	case BAMBOO_PAD:
 		__clear_bit(ABS_MISC, input_dev->absbit);
@@ -2688,11 +2765,13 @@ int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
 		break;
 
 	case INTUOSHT:
+	case INTUOSHT2:
 		input_dev->evbit[0] |= BIT_MASK(EV_SW);
 		__set_bit(SW_MUTE_DEVICE, input_dev->swbit);
 		/* fall through */
 
 	case BAMBOO_PT:
+	case BAMBOO_TOUCH:
 		if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
 			input_set_abs_params(input_dev,
 				     ABS_MT_TOUCH_MAJOR,
@@ -2752,6 +2831,7 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 	switch (features->type) {
 
 	case CINTIQ_HYBRID:
+	case CINTIQ_COMPANION_2:
 	case DTK:
 	case DTUS:
 	case GRAPHIRE_BT:
@@ -2845,6 +2925,8 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 
 	case INTUOSHT:
 	case BAMBOO_PT:
+	case BAMBOO_TOUCH:
+	case INTUOSHT2:
 		__clear_bit(ABS_MISC, input_dev->absbit);
 
 		__set_bit(BTN_LEFT, input_dev->keybit);
@@ -3235,11 +3317,10 @@ static const struct wacom_features wacom_features_0x47 =
 	{ "Wacom Intuos2 6x8", 20320, 16240, 1023, 31,
 	  INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x84 =
-	{ "Wacom Wireless Receiver", 0, 0, 0, 0,
-	  WIRELESS, 0, 0, .touch_max = 16 };
+	{ "Wacom Wireless Receiver", .type = WIRELESS, .touch_max = 16 };
 static const struct wacom_features wacom_features_0xD0 =
 	{ "Wacom Bamboo 2FG", 14720, 9200, 1023, 31,
-	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
+	  BAMBOO_TOUCH, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
 static const struct wacom_features wacom_features_0xD1 =
 	{ "Wacom Bamboo 2FG 4x5", 14720, 9200, 1023, 31,
 	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
@@ -3251,10 +3332,10 @@ static const struct wacom_features wacom_features_0xD3 =
 	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
 static const struct wacom_features wacom_features_0xD4 =
 	{ "Wacom Bamboo Pen", 14720, 9200, 1023, 31,
-	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD5 =
 	{ "Wacom Bamboo Pen 6x8", 21648, 13700, 1023, 31,
-	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD6 =
 	{ "Wacom BambooPT 2FG 4x5", 14720, 9200, 1023, 31,
 	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
@@ -3281,7 +3362,7 @@ static const struct wacom_features wacom_features_0xDF =
 	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16 };
 static const struct wacom_features wacom_features_0x300 =
 	{ "Wacom Bamboo One S", 14720, 9225, 1023, 31,
-	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x301 =
 	{ "Wacom Bamboo One M", 21648, 13530, 1023, 31,
 	  BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -3324,14 +3405,38 @@ static const struct wacom_features wacom_features_0x318 =
 static const struct wacom_features wacom_features_0x319 =
 	{ "Wacom Wireless Bamboo PAD", 4095, 4095, /* Touch */
 	  .type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
+static const struct wacom_features wacom_features_0x325 =
+	{ "Wacom ISDv5 325", 59552, 33848, 2047, 63,
+	  CINTIQ_COMPANION_2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 11,
+	  WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
+	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x326 };
+static const struct wacom_features wacom_features_0x326 = /* Touch */
+	{ "Wacom ISDv5 326", .type = HID_GENERIC, .oVid = USB_VENDOR_ID_WACOM,
+	  .oPid = 0x325 };
 static const struct wacom_features wacom_features_0x323 =
 	{ "Wacom Intuos P M", 21600, 13500, 1023, 31,
 	  INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
 	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
 static const struct wacom_features wacom_features_0x331 =
-	{ "Wacom Express Key Remote", 0, 0, 0, 0,
-	  REMOTE, 0, 0, 18, .check_for_hid_type = true,
+	{ "Wacom Express Key Remote", .type = REMOTE,
+	  .numbered_buttons = 18, .check_for_hid_type = true,
 	  .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x33B =
+	{ "Wacom Intuos S 2", 15200, 9500, 2047, 63,
+	  INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x33C =
+	{ "Wacom Intuos PT S 2", 15200, 9500, 2047, 63,
+	  INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
+	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x33D =
+	{ "Wacom Intuos P M 2", 21600, 13500, 2047, 63,
+	  INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
+static const struct wacom_features wacom_features_0x33E =
+	{ "Wacom Intuos PT M 2", 21600, 13500, 2047, 63,
+	  INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
+	  .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
 
 static const struct wacom_features wacom_features_HID_ANY_ID =
 	{ "Wacom HID", .type = HID_GENERIC };
@@ -3483,6 +3588,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x318) },
 	{ USB_DEVICE_WACOM(0x319) },
 	{ USB_DEVICE_WACOM(0x323) },
+	{ USB_DEVICE_WACOM(0x325) },
+	{ USB_DEVICE_WACOM(0x326) },
 	{ USB_DEVICE_WACOM(0x32A) },
 	{ USB_DEVICE_WACOM(0x32B) },
 	{ USB_DEVICE_WACOM(0x32C) },
@@ -3491,6 +3598,10 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x333) },
 	{ USB_DEVICE_WACOM(0x335) },
 	{ USB_DEVICE_WACOM(0x336) },
+	{ USB_DEVICE_WACOM(0x33B) },
+	{ USB_DEVICE_WACOM(0x33C) },
+	{ USB_DEVICE_WACOM(0x33D) },
+	{ USB_DEVICE_WACOM(0x33E) },
 	{ USB_DEVICE_WACOM(0x4001) },
 	{ USB_DEVICE_WACOM(0x4004) },
 	{ USB_DEVICE_WACOM(0x5000) },
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 1e270d401e18..877c24a5df94 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -68,6 +68,7 @@
 #define WACOM_REPORT_BPAD_PEN		3
 #define WACOM_REPORT_BPAD_TOUCH		16
 #define WACOM_REPORT_DEVICE_LIST	16
+#define WACOM_REPORT_INTUOS_PEN		16
 #define WACOM_REPORT_REMOTE		17
 
 /* device quirks */
@@ -117,22 +118,26 @@ enum {
 	INTUOSPS,
 	INTUOSPM,
 	INTUOSPL,
-	INTUOSHT,
 	WACOM_21UX2,
 	WACOM_22HD,
 	DTK,
 	WACOM_24HD,
 	WACOM_27QHD,
 	CINTIQ_HYBRID,
+	CINTIQ_COMPANION_2,
 	CINTIQ,
 	WACOM_BEE,
 	WACOM_13HD,
 	WACOM_MO,
-	WIRELESS,
+	BAMBOO_PEN,
+	INTUOSHT,
+	INTUOSHT2,
+	BAMBOO_TOUCH,
 	BAMBOO_PT,
 	WACOM_24HDT,
 	WACOM_27QHDT,
 	BAMBOO_PAD,
+	WIRELESS,
 	REMOTE,
 	TABLETPC,   /* add new TPC below */
 	TABLETPCE,
@@ -198,6 +203,7 @@ struct hid_data {
 	int width;
 	int height;
 	int id;
+	int cc_report;
 	int cc_index;
 	int cc_value_index;
 	int num_expected;