Merge branches 'for-4.5/upstream-fixes', 'for-4.6/cmedia', 'for-4.6/i2c-hid',...

Merge branches 'for-4.5/upstream-fixes', 'for-4.6/cmedia', 'for-4.6/i2c-hid', 'for-4.6/logitech', 'for-4.6/multitouch', 'for-4.6/penmount', 'for-4.6/sony', 'for-4.6/thingm', 'for-4.6/upstream' and 'for-4.6/wacom' into for-linus

drivers/hid/Kconfig

@@ -196,6 +196,12 @@ config HID_PRODIKEYS
 	  multimedia keyboard, but will lack support for the musical keyboard
 	  and some additional multimedia keys.
 
+config HID_CMEDIA
+	tristate "CMedia CM6533 HID audio jack controls"
+	depends on HID
+	---help---
+	Support for CMedia CM6533 HID audio jack controls.
+
 config HID_CP2112
 	tristate "Silicon Labs CP2112 HID USB-to-SMBus Bridge support"
 	depends on USB_HID && I2C && GPIOLIB

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-$(CONFIG_HID_CMEDIA)	+= hid-cmedia.o
 obj-$(CONFIG_HID_CORSAIR)	+= hid-corsair.o
 obj-$(CONFIG_HID_CP2112)	+= hid-cp2112.o
 obj-$(CONFIG_HID_CYPRESS)	+= hid-cypress.o

drivers/hid/hid-cmedia.c

+/*
+ * HID driver for CMedia CM6533 audio jack controls
+ *
+ * Copyright (C) 2015 Ben Chen <ben_chen@bizlinktech.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include "hid-ids.h"
+
+MODULE_AUTHOR("Ben Chen");
+MODULE_DESCRIPTION("CM6533 HID jack controls");
+MODULE_LICENSE("GPL");
+
+#define CM6533_JD_TYPE_COUNT      1
+#define CM6533_JD_RAWEV_LEN	 16
+#define CM6533_JD_SFX_OFFSET	  8
+
+/*
+*
+*CM6533 audio jack HID raw events:
+*
+*Plug in:
+*01000600 002083xx 080008c0 10000000
+*about 3 seconds later...
+*01000a00 002083xx 08000380 10000000
+*01000600 002083xx 08000380 10000000
+*
+*Plug out:
+*01000400 002083xx 080008c0 x0000000
+*/
+
+static const u8 ji_sfx[] = { 0x08, 0x00, 0x08, 0xc0 };
+static const u8 ji_in[]  = { 0x01, 0x00, 0x06, 0x00 };
+static const u8 ji_out[] = { 0x01, 0x00, 0x04, 0x00 };
+
+static int jack_switch_types[CM6533_JD_TYPE_COUNT] = {
+	SW_HEADPHONE_INSERT,
+};
+
+struct cmhid {
+	struct input_dev *input_dev;
+	struct hid_device *hid;
+	unsigned short switch_map[CM6533_JD_TYPE_COUNT];
+};
+
+static void hp_ev(struct hid_device *hid, struct cmhid *cm, int value)
+{
+	input_report_switch(cm->input_dev, SW_HEADPHONE_INSERT, value);
+	input_sync(cm->input_dev);
+}
+
+static int cmhid_raw_event(struct hid_device *hid, struct hid_report *report,
+	 u8 *data, int len)
+{
+	struct cmhid *cm = hid_get_drvdata(hid);
+
+	if (len != CM6533_JD_RAWEV_LEN)
+		goto out;
+	if (memcmp(data+CM6533_JD_SFX_OFFSET, ji_sfx, sizeof(ji_sfx)))
+		goto out;
+
+	if (!memcmp(data, ji_out, sizeof(ji_out))) {
+		hp_ev(hid, cm, 0);
+		goto out;
+	}
+	if (!memcmp(data, ji_in, sizeof(ji_in))) {
+		hp_ev(hid, cm, 1);
+		goto out;
+	}
+
+out:
+	return 0;
+}
+
+static int cmhid_input_configured(struct hid_device *hid,
+		struct hid_input *hidinput)
+{
+	struct input_dev *input_dev = hidinput->input;
+	struct cmhid *cm = hid_get_drvdata(hid);
+	int i;
+
+	cm->input_dev = input_dev;
+	memcpy(cm->switch_map, jack_switch_types, sizeof(cm->switch_map));
+	input_dev->evbit[0] = BIT(EV_SW);
+	for (i = 0; i < CM6533_JD_TYPE_COUNT; i++)
+		input_set_capability(cm->input_dev,
+				EV_SW, jack_switch_types[i]);
+	return 0;
+}
+
+static int cmhid_input_mapping(struct hid_device *hid,
+		struct hid_input *hi, struct hid_field *field,
+		struct hid_usage *usage, unsigned long **bit, int *max)
+{
+	return -1;
+}
+
+static int cmhid_probe(struct hid_device *hid, const struct hid_device_id *id)
+{
+	int ret;
+	struct cmhid *cm;
+
+	cm = kzalloc(sizeof(struct cmhid), GFP_KERNEL);
+	if (!cm) {
+		ret = -ENOMEM;
+		goto allocfail;
+	}
+
+	cm->hid = hid;
+
+	hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
+	hid_set_drvdata(hid, cm);
+
+	ret = hid_parse(hid);
+	if (ret) {
+		hid_err(hid, "parse failed\n");
+		goto fail;
+	}
+
+	ret = hid_hw_start(hid, HID_CONNECT_DEFAULT | HID_CONNECT_HIDDEV_FORCE);
+	if (ret) {
+		hid_err(hid, "hw start failed\n");
+		goto fail;
+	}
+
+	return 0;
+fail:
+	kfree(cm);
+allocfail:
+	return ret;
+}
+
+static void cmhid_remove(struct hid_device *hid)
+{
+	struct cmhid *cm = hid_get_drvdata(hid);
+
+	hid_hw_stop(hid);
+	kfree(cm);
+}
+
+static const struct hid_device_id cmhid_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, cmhid_devices);
+
+static struct hid_driver cmhid_driver = {
+	.name = "cm6533_jd",
+	.id_table = cmhid_devices,
+	.raw_event = cmhid_raw_event,
+	.input_configured = cmhid_input_configured,
+	.probe = cmhid_probe,
+	.remove = cmhid_remove,
+	.input_mapping = cmhid_input_mapping,
+};
+module_hid_driver(cmhid_driver);
+

drivers/hid/hid-core.c

@@ -1965,6 +1965,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
@@ -2049,6 +2050,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
@@ -2097,6 +2099,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
 	{ }
 };
 

drivers/hid/hid-dr.c

@@ -151,7 +151,7 @@ static inline int drff_init(struct hid_device *hid)
  * descriptor. In any case, it's a wonder it works on Windows.
  *
  *  Usage Page (Desktop),             ; Generic desktop controls (01h)
- *  Usage (Joystik),                  ; Joystik (04h, application collection)
+ *  Usage (Joystick),                 ; Joystick (04h, application collection)
  *  Collection (Application),
  *    Collection (Logical),
  *      Report Size (8),
@@ -207,7 +207,7 @@ static inline int drff_init(struct hid_device *hid)
 /* Fixed report descriptor for PID 0x011 joystick */
 static __u8 pid0011_rdesc_fixed[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),           */
-	0x09, 0x04,         /*  Usage (Joystik),                */
+	0x09, 0x04,         /*  Usage (Joystick),               */
 	0xA1, 0x01,         /*  Collection (Application),       */
 	0xA1, 0x02,         /*      Collection (Logical),       */
 	0x14,               /*          Logical Minimum (0),    */

drivers/hid/hid-ids.h

@@ -249,6 +249,7 @@
 
 #define USB_VENDOR_ID_CMEDIA		0x0d8c
 #define USB_DEVICE_ID_CM109		0x000e
+#define USB_DEVICE_ID_CM6533		0x0022
 
 #define USB_VENDOR_ID_CODEMERCS		0x07c0
 #define USB_DEVICE_ID_CODEMERCS_IOW_FIRST	0x1500
@@ -683,6 +684,7 @@
 #define USB_DEVICE_ID_MS_NE7K		0x071d
 #define USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K	0x0730
 #define USB_DEVICE_ID_MS_COMFORT_MOUSE_4500	0x076c
+#define USB_DEVICE_ID_MS_COMFORT_KEYBOARD 0x00e3
 #define USB_DEVICE_ID_MS_SURFACE_PRO_2   0x0799
 #define USB_DEVICE_ID_MS_TOUCH_COVER_2   0x07a7
 #define USB_DEVICE_ID_MS_TYPE_COVER_2    0x07a9
@@ -877,6 +879,9 @@
 #define USB_DEVICE_ID_SONY_BUZZ_CONTROLLER		0x0002
 #define USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER	0x1000
 
+#define USB_VENDOR_ID_SINO_LITE			0x1345
+#define USB_DEVICE_ID_SINO_LITE_CONTROLLER	0x3008
+
 #define USB_VENDOR_ID_SOUNDGRAPH	0x15c2
 #define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST	0x0034
 #define USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST	0x0046
@@ -1052,7 +1057,7 @@
 #define USB_DEVICE_ID_RI_KA_WEBMAIL	0x1320	/* Webmail Notifier */
 
 #define USB_VENDOR_ID_MULTIPLE_1781	0x1781
-#define USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD	0x0a8d
+#define USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD	0x0a9d
 
 #define USB_VENDOR_ID_DRACAL_RAPHNET	0x289b
 #define USB_DEVICE_ID_RAPHNET_2NES2SNES	0x0002

drivers/hid/hid-lg.c

@@ -61,7 +61,7 @@
  */
 static __u8 df_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
-0x09, 0x04,         /*  Usage (Joystik),                        */
+0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
 0xA1, 0x02,         /*      Collection (Logical),               */
 0x95, 0x01,         /*          Report Count (1),               */
@@ -127,7 +127,7 @@ static __u8 df_rdesc_fixed[] = {
 
 static __u8 dfp_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
-0x09, 0x04,         /*  Usage (Joystik),                        */
+0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
 0xA1, 0x02,         /*      Collection (Logical),               */
 0x95, 0x01,         /*          Report Count (1),               */
@@ -175,7 +175,7 @@ static __u8 dfp_rdesc_fixed[] = {
 
 static __u8 fv_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
-0x09, 0x04,         /*  Usage (Joystik),                        */
+0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
 0xA1, 0x02,         /*      Collection (Logical),               */
 0x95, 0x01,         /*          Report Count (1),               */
@@ -242,7 +242,7 @@ static __u8 fv_rdesc_fixed[] = {
 
 static __u8 momo_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
-0x09, 0x04,         /*  Usage (Joystik),                    */
+0x09, 0x04,         /*  Usage (Joystick),                   */
 0xA1, 0x01,         /*  Collection (Application),           */
 0xA1, 0x02,         /*      Collection (Logical),           */
 0x95, 0x01,         /*          Report Count (1),           */
@@ -288,7 +288,7 @@ static __u8 momo_rdesc_fixed[] = {
 
 static __u8 momo2_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
-0x09, 0x04,         /*  Usage (Joystik),                    */
+0x09, 0x04,         /*  Usage (Joystick),                   */
 0xA1, 0x01,         /*  Collection (Application),           */
 0xA1, 0x02,         /*      Collection (Logical),           */
 0x95, 0x01,         /*          Report Count (1),           */

drivers/hid/hid-microsoft.c

@@ -286,6 +286,8 @@ static const struct hid_device_id ms_devices[] = {
 		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
 		.driver_data = MS_HIDINPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
+		.driver_data = MS_ERGONOMY},
 
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
 		.driver_data = MS_PRESENTER },

drivers/hid/hid-multitouch.c

@@ -396,6 +396,11 @@ static void mt_feature_mapping(struct hid_device *hdev,
 			td->is_buttonpad = true;
 
 		break;
+	case 0xff0000c5:
+		/* Retrieve the Win8 blob once to enable some devices */
+		if (usage->usage_index == 0)
+			mt_get_feature(hdev, field->report);
+		break;
 	}
 }
 
@@ -1133,6 +1138,9 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return ret;
 
 	ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
+	if (ret)
+		dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
+				hdev->name);
 
 	mt_set_maxcontacts(hdev);
 	mt_set_input_mode(hdev);
@@ -1145,8 +1153,30 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 }
 
 #ifdef CONFIG_PM
+static void mt_release_contacts(struct hid_device *hid)
+{
+	struct hid_input *hidinput;
+
+	list_for_each_entry(hidinput, &hid->inputs, list) {
+		struct input_dev *input_dev = hidinput->input;
+		struct input_mt *mt = input_dev->mt;
+		int i;
+
+		if (mt) {
+			for (i = 0; i < mt->num_slots; i++) {
+				input_mt_slot(input_dev, i);
+				input_mt_report_slot_state(input_dev,
+							   MT_TOOL_FINGER,
+							   false);
+			}
+			input_sync(input_dev);
+		}
+	}
+}
+
 static int mt_reset_resume(struct hid_device *hdev)
 {
+	mt_release_contacts(hdev);
 	mt_set_maxcontacts(hdev);
 	mt_set_input_mode(hdev);
 	return 0;

drivers/hid/hid-penmount.c

@@ -23,8 +23,12 @@ static int penmount_input_mapping(struct hid_device *hdev,
 		struct hid_usage *usage, unsigned long **bit, int *max)
 {
 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
-		hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
-		return 1;
+		if (((usage->hid - 1) & HID_USAGE) == 0) {
+			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+			return 1;
+		} else {
+			return -1;
+		}
 	}
 
 	return 0;

drivers/hid/hid-thingm.c

@@ -14,7 +14,6 @@
 #include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/workqueue.h>
 
 #include "hid-ids.h"
 
@@ -56,7 +55,6 @@ struct thingm_rgb {
 	struct thingm_led red;
 	struct thingm_led green;
 	struct thingm_led blue;
-	struct work_struct work;
 	u8 num;
 };
 
@@ -79,9 +77,13 @@ static int thingm_send(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
 			buf[0], buf[1], buf[2], buf[3], buf[4],
 			buf[5], buf[6], buf[7], buf[8]);
 
+	mutex_lock(&tdev->lock);
+
 	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
 			HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 
+	mutex_unlock(&tdev->lock);
+
 	return ret < 0 ? ret : 0;
 }
 
@@ -89,16 +91,31 @@ static int thingm_recv(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
 {
 	int ret;
 
+	/*
+	 * A read consists of two operations: sending the read command
+	 * and the actual read from the device. Use the mutex to protect
+	 * the full sequence of both operations.
+	 */
+	mutex_lock(&tdev->lock);
+
+	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
+			HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+	if (ret < 0)
+		goto err;
+
 	ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
 			HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
 	if (ret < 0)
-		return ret;
+		goto err;
+
+	ret = 0;
 
 	hid_dbg(tdev->hdev, "<- %d %c %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx\n",
 			buf[0], buf[1], buf[2], buf[3], buf[4],
 			buf[5], buf[6], buf[7], buf[8]);
-
-	return 0;
+err:
+	mutex_unlock(&tdev->lock);
+	return ret;
 }
 
 static int thingm_version(struct thingm_device *tdev)
@@ -106,10 +123,6 @@ static int thingm_version(struct thingm_device *tdev)
 	u8 buf[REPORT_SIZE] = { REPORT_ID, 'v', 0, 0, 0, 0, 0, 0, 0 };
 	int err;
 
-	err = thingm_send(tdev, buf);
-	if (err)
-		return err;
-
 	err = thingm_recv(tdev, buf);
 	if (err)
 		return err;
@@ -131,25 +144,17 @@ static int thingm_write_color(struct thingm_rgb *rgb)
 	return thingm_send(rgb->tdev, buf);
 }
 
-static void thingm_work(struct work_struct *work)
-{
-	struct thingm_rgb *rgb = container_of(work, struct thingm_rgb, work);
-
-	mutex_lock(&rgb->tdev->lock);
-
-	if (thingm_write_color(rgb))
-		hid_err(rgb->tdev->hdev, "failed to write color\n");
-
-	mutex_unlock(&rgb->tdev->lock);
-}
-
-static void thingm_led_set(struct led_classdev *ldev,
-		enum led_brightness brightness)
+static int thingm_led_set(struct led_classdev *ldev,
+			  enum led_brightness brightness)
 {
 	struct thingm_led *led = container_of(ldev, struct thingm_led, ldev);
+	int ret;
+
+	ret = thingm_write_color(led->rgb);
+	if (ret)
+		hid_err(led->rgb->tdev->hdev, "failed to write color\n");
 
-	/* the ledclass has already stored the brightness value */
-	schedule_work(&led->rgb->work);
+	return ret;
 }
 
 static int thingm_init_rgb(struct thingm_rgb *rgb)
@@ -162,10 +167,11 @@ static int thingm_init_rgb(struct thingm_rgb *rgb)
 			"thingm%d:red:led%d", minor, rgb->num);
 	rgb->red.ldev.name = rgb->red.name;
 	rgb->red.ldev.max_brightness = 255;
-	rgb->red.ldev.brightness_set = thingm_led_set;
+	rgb->red.ldev.brightness_set_blocking = thingm_led_set;
 	rgb->red.rgb = rgb;
 
-	err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->red.ldev);
+	err = devm_led_classdev_register(&rgb->tdev->hdev->dev,
+					 &rgb->red.ldev);
 	if (err)
 		return err;
 
@@ -174,46 +180,27 @@ static int thingm_init_rgb(struct thingm_rgb *rgb)
 			"thingm%d:green:led%d", minor, rgb->num);
 	rgb->green.ldev.name = rgb->green.name;
 	rgb->green.ldev.max_brightness = 255;
-	rgb->green.ldev.brightness_set = thingm_led_set;
+	rgb->green.ldev.brightness_set_blocking = thingm_led_set;
 	rgb->green.rgb = rgb;
 
-	err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->green.ldev);
+	err = devm_led_classdev_register(&rgb->tdev->hdev->dev,
+					 &rgb->green.ldev);
 	if (err)
-		goto unregister_red;
+		return err;
 
 	/* Register the blue diode */
 	snprintf(rgb->blue.name, sizeof(rgb->blue.name),
 			"thingm%d:blue:led%d", minor, rgb->num);
 	rgb->blue.ldev.name = rgb->blue.name;
 	rgb->blue.ldev.max_brightness = 255;
-	rgb->blue.ldev.brightness_set = thingm_led_set;
+	rgb->blue.ldev.brightness_set_blocking = thingm_led_set;
 	rgb->blue.rgb = rgb;
 
-	err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->blue.ldev);
-	if (err)
-		goto unregister_green;
-
-	INIT_WORK(&rgb->work, thingm_work);
-
-	return 0;
-
-unregister_green:
-	led_classdev_unregister(&rgb->green.ldev);
-
-unregister_red:
-	led_classdev_unregister(&rgb->red.ldev);
-
+	err = devm_led_classdev_register(&rgb->tdev->hdev->dev,
+					 &rgb->blue.ldev);
 	return err;
 }
 
-static void thingm_remove_rgb(struct thingm_rgb *rgb)
-{
-	led_classdev_unregister(&rgb->red.ldev);
-	led_classdev_unregister(&rgb->green.ldev);
-	led_classdev_unregister(&rgb->blue.ldev);
-	flush_work(&rgb->work);
-}
-
 static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	struct thingm_device *tdev;
@@ -229,17 +216,13 @@ static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	err = hid_parse(hdev);
 	if (err)
-		goto error;
-
-	err = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
-	if (err)
-		goto error;
+		return err;
 
 	mutex_init(&tdev->lock);
 
 	err = thingm_version(tdev);
 	if (err)
-		goto stop;
+		return err;
 
 	hid_dbg(hdev, "firmware version: %c.%c\n",
 			tdev->version.major, tdev->version.minor);
@@ -250,17 +233,18 @@ static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	if (!tdev->fwinfo) {
 		hid_err(hdev, "unsupported firmware %c\n", tdev->version.major);
-		err = -ENODEV;
-		goto stop;
+		return -ENODEV;
 	}
 
 	tdev->rgb = devm_kzalloc(&hdev->dev,
 			sizeof(struct thingm_rgb) * tdev->fwinfo->numrgb,
 			GFP_KERNEL);
-	if (!tdev->rgb) {
-		err = -ENOMEM;
-		goto stop;
-	}
+	if (!tdev->rgb)
+		return -ENOMEM;
+
+	err = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+	if (err)
+		return err;
 
 	for (i = 0; i < tdev->fwinfo->numrgb; ++i) {
 		struct thingm_rgb *rgb = tdev->rgb + i;
@@ -269,28 +253,12 @@ static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		rgb->num = tdev->fwinfo->first + i;
 		err = thingm_init_rgb(rgb);
 		if (err) {
-			while (--i >= 0)
-				thingm_remove_rgb(tdev->rgb + i);
-			goto stop;
+			hid_hw_stop(hdev);
+			return err;
 		}
 	}
 
 	return 0;
-stop:
-	hid_hw_stop(hdev);
-error:
-	return err;
-}
-
-static void thingm_remove(struct hid_device *hdev)
-{
-	struct thingm_device *tdev = hid_get_drvdata(hdev);
-	int i;
-
-	hid_hw_stop(hdev);
-
-	for (i = 0; i < tdev->fwinfo->numrgb; ++i)
-		thingm_remove_rgb(tdev->rgb + i);
 }
 
 static const struct hid_device_id thingm_table[] = {
@@ -302,7 +270,6 @@ MODULE_DEVICE_TABLE(hid, thingm_table);
 static struct hid_driver thingm_driver = {
 	.name = "thingm",
 	.probe = thingm_probe,
-	.remove = thingm_remove,
 	.id_table = thingm_table,
 };
 

drivers/hid/i2c-hid/i2c-hid.c

@@ -283,17 +283,21 @@ static int i2c_hid_set_or_send_report(struct i2c_client *client, u8 reportType,
 	u16 dataRegister = le16_to_cpu(ihid->hdesc.wDataRegister);
 	u16 outputRegister = le16_to_cpu(ihid->hdesc.wOutputRegister);
 	u16 maxOutputLength = le16_to_cpu(ihid->hdesc.wMaxOutputLength);
+	u16 size;
+	int args_len;
+	int index = 0;
+
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	if (data_len > ihid->bufsize)
+		return -EINVAL;
 
-	/* hid_hw_* already checked that data_len < HID_MAX_BUFFER_SIZE */
-	u16 size =	2			/* size */ +
+	size =		2			/* size */ +
 			(reportID ? 1 : 0)	/* reportID */ +
 			data_len		/* buf */;
-	int args_len =	(reportID >= 0x0F ? 1 : 0) /* optional third byte */ +
+	args_len =	(reportID >= 0x0F ? 1 : 0) /* optional third byte */ +
 			2			/* dataRegister */ +
 			size			/* args */;
-	int index = 0;
-
-	i2c_hid_dbg(ihid, "%s\n", __func__);
 
 	if (!use_data && maxOutputLength == 0)
 		return -ENOSYS;
@@ -1108,13 +1112,30 @@ static int i2c_hid_suspend(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct i2c_hid *ihid = i2c_get_clientdata(client);
 	struct hid_device *hid = ihid->hid;
-	int ret = 0;
+	int ret;
 	int wake_status;
 
-	if (hid->driver && hid->driver->suspend)
+	if (hid->driver && hid->driver->suspend) {
+		/*
+		 * Wake up the device so that IO issues in
+		 * HID driver's suspend code can succeed.
+		 */
+		ret = pm_runtime_resume(dev);
+		if (ret < 0)
+			return ret;
+
 		ret = hid->driver->suspend(hid, PMSG_SUSPEND);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!pm_runtime_suspended(dev)) {
+		/* Save some power */
+		i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+
+		disable_irq(ihid->irq);
+	}
 
-	disable_irq(ihid->irq);
 	if (device_may_wakeup(&client->dev)) {
 		wake_status = enable_irq_wake(ihid->irq);
 		if (!wake_status)
@@ -1124,10 +1145,7 @@ static int i2c_hid_suspend(struct device *dev)
 				wake_status);
 	}
 
-	/* Save some power */
-	i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
-
-	return ret;
+	return 0;
 }
 
 static int i2c_hid_resume(struct device *dev)
@@ -1138,11 +1156,6 @@ static int i2c_hid_resume(struct device *dev)
 	struct hid_device *hid = ihid->hid;
 	int wake_status;
 
-	enable_irq(ihid->irq);
-	ret = i2c_hid_hwreset(client);
-	if (ret)
-		return ret;
-
 	if (device_may_wakeup(&client->dev) && ihid->irq_wake_enabled) {
 		wake_status = disable_irq_wake(ihid->irq);
 		if (!wake_status)
@@ -1152,6 +1165,16 @@ static int i2c_hid_resume(struct device *dev)
 				wake_status);
 	}
 
+	/* We'll resume to full power */
+	pm_runtime_disable(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	enable_irq(ihid->irq);
+	ret = i2c_hid_hwreset(client);
+	if (ret)
+		return ret;
+
 	if (hid->driver && hid->driver->reset_resume) {
 		ret = hid->driver->reset_resume(hid);
 		return ret;
@@ -1191,6 +1214,7 @@ static const struct dev_pm_ops i2c_hid_pm = {
 
 static const struct i2c_device_id i2c_hid_id_table[] = {
 	{ "hid", 0 },
+	{ "hid-over-i2c", 0 },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, i2c_hid_id_table);

drivers/hid/wacom_wac.c

@@ -575,16 +575,102 @@ static int wacom_intuos_pad(struct wacom_wac *wacom)
 	return 1;
 }
 
+static int wacom_intuos_get_tool_type(int tool_id)
+{
+	int tool_type;
+
+	switch (tool_id) {
+	case 0x812: /* Inking pen */
+	case 0x801: /* Intuos3 Inking pen */
+	case 0x120802: /* Intuos4/5 Inking Pen */
+	case 0x012:
+		tool_type = BTN_TOOL_PENCIL;
+		break;
+
+	case 0x822: /* Pen */
+	case 0x842:
+	case 0x852:
+	case 0x823: /* Intuos3 Grip Pen */
+	case 0x813: /* Intuos3 Classic Pen */
+	case 0x885: /* Intuos3 Marker Pen */
+	case 0x802: /* Intuos4/5 13HD/24HD General Pen */
+	case 0x804: /* Intuos4/5 13HD/24HD Marker Pen */
+	case 0x8e2: /* IntuosHT2 pen */
+	case 0x022:
+	case 0x100804: /* Intuos4/5 13HD/24HD Art Pen */
+	case 0x140802: /* Intuos4/5 13HD/24HD Classic Pen */
+	case 0x160802: /* Cintiq 13HD Pro Pen */
+	case 0x180802: /* DTH2242 Pen */
+	case 0x100802: /* Intuos4/5 13HD/24HD General Pen */
+		tool_type = BTN_TOOL_PEN;
+		break;
+
+	case 0x832: /* Stroke pen */
+	case 0x032:
+		tool_type = BTN_TOOL_BRUSH;
+		break;
+
+	case 0x007: /* Mouse 4D and 2D */
+	case 0x09c:
+	case 0x094:
+	case 0x017: /* Intuos3 2D Mouse */
+	case 0x806: /* Intuos4 Mouse */
+		tool_type = BTN_TOOL_MOUSE;
+		break;
+
+	case 0x096: /* Lens cursor */
+	case 0x097: /* Intuos3 Lens cursor */
+	case 0x006: /* Intuos4 Lens cursor */
+		tool_type = BTN_TOOL_LENS;
+		break;
+
+	case 0x82a: /* Eraser */
+	case 0x85a:
+	case 0x91a:
+	case 0xd1a:
+	case 0x0fa:
+	case 0x82b: /* Intuos3 Grip Pen Eraser */
+	case 0x81b: /* Intuos3 Classic Pen Eraser */
+	case 0x91b: /* Intuos3 Airbrush Eraser */
+	case 0x80c: /* Intuos4/5 13HD/24HD Marker Pen Eraser */
+	case 0x80a: /* Intuos4/5 13HD/24HD General Pen Eraser */
+	case 0x90a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
+	case 0x14080a: /* Intuos4/5 13HD/24HD Classic Pen Eraser */
+	case 0x10090a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
+	case 0x10080c: /* Intuos4/5 13HD/24HD Art Pen Eraser */
+	case 0x16080a: /* Cintiq 13HD Pro Pen Eraser */
+	case 0x18080a: /* DTH2242 Eraser */
+	case 0x10080a: /* Intuos4/5 13HD/24HD General Pen Eraser */
+		tool_type = BTN_TOOL_RUBBER;
+		break;
+
+	case 0xd12:
+	case 0x912:
+	case 0x112:
+	case 0x913: /* Intuos3 Airbrush */
+	case 0x902: /* Intuos4/5 13HD/24HD Airbrush */
+	case 0x100902: /* Intuos4/5 13HD/24HD Airbrush */
+		tool_type = BTN_TOOL_AIRBRUSH;
+		break;
+
+	default: /* Unknown tool */
+		tool_type = BTN_TOOL_PEN;
+		break;
+	}
+	return tool_type;
+}
+
 static int wacom_intuos_inout(struct wacom_wac *wacom)
 {
 	struct wacom_features *features = &wacom->features;
 	unsigned char *data = wacom->data;
 	struct input_dev *input = wacom->pen_input;
-	int idx = 0;
+	int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
 
-	/* tool number */
-	if (features->type == INTUOS)
-		idx = data[1] & 0x01;
+	if (!(((data[1] & 0xfc) == 0xc0) ||  /* in prox */
+	    ((data[1] & 0xfe) == 0x20) ||    /* in range */
+	    ((data[1] & 0xfe) == 0x80)))     /* out prox */
+		return 0;
 
 	/* Enter report */
 	if ((data[1] & 0xfc) == 0xc0) {
@@ -596,116 +682,24 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 		wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
 			((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12);
 
-		switch (wacom->id[idx]) {
-		case 0x812: /* Inking pen */
-		case 0x801: /* Intuos3 Inking pen */
-		case 0x120802: /* Intuos4/5 Inking Pen */
-		case 0x012:
-			wacom->tool[idx] = BTN_TOOL_PENCIL;
-			break;
-
-		case 0x822: /* Pen */
-		case 0x842:
-		case 0x852:
-		case 0x823: /* Intuos3 Grip Pen */
-		case 0x813: /* Intuos3 Classic Pen */
-		case 0x885: /* Intuos3 Marker Pen */
-		case 0x802: /* Intuos4/5 13HD/24HD General Pen */
-		case 0x804: /* Intuos4/5 13HD/24HD Marker Pen */
-		case 0x022:
-		case 0x100804: /* Intuos4/5 13HD/24HD Art Pen */
-		case 0x140802: /* Intuos4/5 13HD/24HD Classic Pen */
-		case 0x160802: /* Cintiq 13HD Pro Pen */
-		case 0x180802: /* DTH2242 Pen */
-		case 0x100802: /* Intuos4/5 13HD/24HD General Pen */
-			wacom->tool[idx] = BTN_TOOL_PEN;
-			break;
-
-		case 0x832: /* Stroke pen */
-		case 0x032:
-			wacom->tool[idx] = BTN_TOOL_BRUSH;
-			break;
-
-		case 0x007: /* Mouse 4D and 2D */
-		case 0x09c:
-		case 0x094:
-		case 0x017: /* Intuos3 2D Mouse */
-		case 0x806: /* Intuos4 Mouse */
-			wacom->tool[idx] = BTN_TOOL_MOUSE;
-			break;
-
-		case 0x096: /* Lens cursor */
-		case 0x097: /* Intuos3 Lens cursor */
-		case 0x006: /* Intuos4 Lens cursor */
-			wacom->tool[idx] = BTN_TOOL_LENS;
-			break;
-
-		case 0x82a: /* Eraser */
-		case 0x85a:
-		case 0x91a:
-		case 0xd1a:
-		case 0x0fa:
-		case 0x82b: /* Intuos3 Grip Pen Eraser */
-		case 0x81b: /* Intuos3 Classic Pen Eraser */
-		case 0x91b: /* Intuos3 Airbrush Eraser */
-		case 0x80c: /* Intuos4/5 13HD/24HD Marker Pen Eraser */
-		case 0x80a: /* Intuos4/5 13HD/24HD General Pen Eraser */
-		case 0x90a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
-		case 0x14080a: /* Intuos4/5 13HD/24HD Classic Pen Eraser */
-		case 0x10090a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
-		case 0x10080c: /* Intuos4/5 13HD/24HD Art Pen Eraser */
-		case 0x16080a: /* Cintiq 13HD Pro Pen Eraser */
-		case 0x18080a: /* DTH2242 Eraser */
-		case 0x10080a: /* Intuos4/5 13HD/24HD General Pen Eraser */
-			wacom->tool[idx] = BTN_TOOL_RUBBER;
-			break;
-
-		case 0xd12:
-		case 0x912:
-		case 0x112:
-		case 0x913: /* Intuos3 Airbrush */
-		case 0x902: /* Intuos4/5 13HD/24HD Airbrush */
-		case 0x100902: /* Intuos4/5 13HD/24HD Airbrush */
-			wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
-			break;
-
-		default: /* Unknown tool */
-			wacom->tool[idx] = BTN_TOOL_PEN;
-			break;
-		}
+		wacom->tool[idx] = wacom_intuos_get_tool_type(wacom->id[idx]);
+
 		return 1;
 	}
 
-	/*
-	 * don't report events for invalid data
-	 */
-	/* older I4 styli don't work with new Cintiqs */
-	if ((!((wacom->id[idx] >> 20) & 0x01) &&
-			(features->type == WACOM_21UX2)) ||
-	    /* Only large Intuos support Lense Cursor */
-	    (wacom->tool[idx] == BTN_TOOL_LENS &&
-		(features->type == INTUOS3 ||
-		 features->type == INTUOS3S ||
-		 features->type == INTUOS4 ||
-		 features->type == INTUOS4S ||
-		 features->type == INTUOS5 ||
-		 features->type == INTUOS5S ||
-		 features->type == INTUOSPM ||
-		 features->type == INTUOSPS)) ||
-	   /* Cintiq doesn't send data when RDY bit isn't set */
-	   (features->type == CINTIQ && !(data[1] & 0x40)))
-		return 1;
+	/* in Range */
+	if ((data[1] & 0xfe) == 0x20) {
+		if (features->type != INTUOSHT2)
+			wacom->shared->stylus_in_proximity = true;
 
-	wacom->shared->stylus_in_proximity = true;
-	if (wacom->shared->touch_down)
+		/* in Range while exiting */
+		if (wacom->reporting_data) {
+			input_report_key(input, BTN_TOUCH, 0);
+			input_report_abs(input, ABS_PRESSURE, 0);
+			input_report_abs(input, ABS_DISTANCE, wacom->features.distance_max);
+			return 2;
+		}
 		return 1;
-
-	/* in Range while exiting */
-	if (((data[1] & 0xfe) == 0x20) && wacom->reporting_data) {
-		input_report_key(input, BTN_TOUCH, 0);
-		input_report_abs(input, ABS_PRESSURE, 0);
-		input_report_abs(input, ABS_DISTANCE, wacom->features.distance_max);
-		return 2;
 	}
 
 	/* Exit report */
@@ -750,13 +744,6 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 		return 2;
 	}
 
-	/* don't report other events if we don't know the ID */
-	if (!wacom->id[idx]) {
-		/* but reschedule a read of the current tool */
-		wacom_intuos_schedule_prox_event(wacom);
-		return 1;
-	}
-
 	return 0;
 }
 
@@ -897,6 +884,36 @@ static int wacom_intuos_general(struct wacom_wac *wacom)
 		data[0] != WACOM_REPORT_INTUOS_PEN)
 		return 0;
 
+	if (wacom->shared->touch_down)
+		return 1;
+
+	/* don't report events if we don't know the tool ID */
+	if (!wacom->id[idx]) {
+		/* but reschedule a read of the current tool */
+		wacom_intuos_schedule_prox_event(wacom);
+		return 1;
+	}
+
+	/*
+	 * don't report events for invalid data
+	 */
+	/* older I4 styli don't work with new Cintiqs */
+	if ((!((wacom->id[idx] >> 20) & 0x01) &&
+			(features->type == WACOM_21UX2)) ||
+	    /* Only large Intuos support Lense Cursor */
+	    (wacom->tool[idx] == BTN_TOOL_LENS &&
+		(features->type == INTUOS3 ||
+		 features->type == INTUOS3S ||
+		 features->type == INTUOS4 ||
+		 features->type == INTUOS4S ||
+		 features->type == INTUOS5 ||
+		 features->type == INTUOS5S ||
+		 features->type == INTUOSPM ||
+		 features->type == INTUOSPS)) ||
+	   /* Cintiq doesn't send data when RDY bit isn't set */
+	   (features->type == CINTIQ && !(data[1] & 0x40)))
+		return 1;
+
 	x = (be16_to_cpup((__be16 *)&data[2]) << 1) | ((data[9] >> 1) & 1);
 	y = (be16_to_cpup((__be16 *)&data[4]) << 1) | (data[9] & 1);
 	distance = data[9] >> 2;