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

Pull input fixes from Dmitry Torokhov:
"Just a few assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - fix wake-on-touch
Input: elan_i2c - set input device's vendor and product IDs
Input: sun4i-lradc-keys - fix typo in binding documentation
Input: atmel_mxt_ts - add maxtouch to I2C table for module autoload
Input: arizona-haptic - fix disabling of haptics device
Input: aiptek - fix crash on detecting device without endpoints
Input: atmel_mxt_ts - add generic platform data for Chromebooks
Input: parkbd - clear unused function pointers
Input: walkera0701 - clear unused function pointers
Input: turbografx - clear unused function pointers
Input: gamecon - clear unused function pointers
Input: db9 - clear unused function pointers

Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt

···
 Required subnode-properties:
 	- label: Descriptive name of the key.
 	- linux,code: Keycode to emit.
-	- channel: Channel this key is attached to, mut be 0 or 1.
+	- channel: Channel this key is attached to, must be 0 or 1.
 	- voltage: Voltage in µV at lradc input when this key is pressed.
 
 Example:

drivers/input/joystick/db9.c

···
 		return;
 	}
 
+	memset(&db9_parport_cb, 0, sizeof(db9_parport_cb));
 	db9_parport_cb.flags = PARPORT_FLAG_EXCL;
 
 	pd = parport_register_dev_model(pp, "db9", &db9_parport_cb, port_idx);

drivers/input/joystick/gamecon.c

···
 	pads = gc_cfg[port_idx].args + 1;
 	n_pads = gc_cfg[port_idx].nargs - 1;
 
+	memset(&gc_parport_cb, 0, sizeof(gc_parport_cb));
 	gc_parport_cb.flags = PARPORT_FLAG_EXCL;
 
 	pd = parport_register_dev_model(pp, "gamecon", &gc_parport_cb,

drivers/input/joystick/turbografx.c

···
 	n_buttons = tgfx_cfg[port_idx].args + 1;
 	n_devs = tgfx_cfg[port_idx].nargs - 1;
 
+	memset(&tgfx_parport_cb, 0, sizeof(tgfx_parport_cb));
 	tgfx_parport_cb.flags = PARPORT_FLAG_EXCL;
 
 	pd = parport_register_dev_model(pp, "turbografx", &tgfx_parport_cb,

drivers/input/joystick/walkera0701.c

···
 
 	w->parport = pp;
 
+	memset(&walkera0701_parport_cb, 0, sizeof(walkera0701_parport_cb));
 	walkera0701_parport_cb.flags = PARPORT_FLAG_EXCL;
 	walkera0701_parport_cb.irq_func = walkera0701_irq_handler;
 	walkera0701_parport_cb.private = w;

drivers/input/misc/arizona-haptics.c

···
 
 		ret = regmap_update_bits(arizona->regmap,
 					 ARIZONA_HAPTICS_CONTROL_1,
-					 ARIZONA_HAP_CTRL_MASK,
-					 1 << ARIZONA_HAP_CTRL_SHIFT);
+					 ARIZONA_HAP_CTRL_MASK, 0);
 		if (ret != 0) {
 			dev_err(arizona->dev, "Failed to stop haptics: %d\n",
 				ret);

drivers/input/mouse/elan_i2c_core.c

···
 
 #define DRIVER_NAME		"elan_i2c"
 #define ELAN_DRIVER_VERSION	"1.6.1"
+#define ELAN_VENDOR_ID		0x04f3
 #define ETP_MAX_PRESSURE	255
 #define ETP_FWIDTH_REDUCE	90
 #define ETP_FINGER_WIDTH	15
···
 
 	input->name = "Elan Touchpad";
 	input->id.bustype = BUS_I2C;
+	input->id.vendor = ELAN_VENDOR_ID;
+	input->id.product = data->product_id;
 	input_set_drvdata(input, data);
 
 	error = input_mt_init_slots(input, ETP_MAX_FINGERS,

drivers/input/serio/parkbd.c

···
 {
 	struct pardev_cb parkbd_parport_cb;
 
+	memset(&parkbd_parport_cb, 0, sizeof(parkbd_parport_cb));
 	parkbd_parport_cb.irq_func = parkbd_interrupt;
 	parkbd_parport_cb.flags = PARPORT_FLAG_EXCL;
 

drivers/input/tablet/aiptek.c

···
 	input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
 	input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
 
+	/* Verify that a device really has an endpoint */
+	if (intf->altsetting[0].desc.bNumEndpoints < 1) {
+		dev_err(&intf->dev,
+			"interface has %d endpoints, but must have minimum 1\n",
+			intf->altsetting[0].desc.bNumEndpoints);
+		err = -EINVAL;
+		goto fail3;
+	}
 	endpoint = &intf->altsetting[0].endpoint[0].desc;
 
 	/* Go set up our URB, which is called when the tablet receives
···
 	if (i == ARRAY_SIZE(speeds)) {
 		dev_info(&intf->dev,
 			 "Aiptek tried all speeds, no sane response\n");
+		err = -EINVAL;
 		goto fail3;
 	}
 

drivers/input/touchscreen/atmel_mxt_ts.c

···
 	{ }
 };
 
+static unsigned int chromebook_tp_buttons[] = {
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	BTN_LEFT
+};
+
+static struct mxt_acpi_platform_data chromebook_platform_data[] = {
+	{
+		/* Touchpad */
+		.hid	= "ATML0000",
+		.pdata	= {
+			.t19_num_keys	= ARRAY_SIZE(chromebook_tp_buttons),
+			.t19_keymap	= chromebook_tp_buttons,
+		},
+	},
+	{
+		/* Touchscreen */
+		.hid	= "ATML0001",
+	},
+	{ }
+};
+
 static const struct dmi_system_id mxt_dmi_table[] = {
 	{
 		/* 2015 Google Pixel */
···
 			DMI_MATCH(DMI_PRODUCT_NAME, "Samus"),
 		},
 		.driver_data = samus_platform_data,
+	},
+	{
+		/* Other Google Chromebooks */
+		.ident = "Chromebook",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+		},
+		.driver_data = chromebook_platform_data,
 	},
 	{ }
 };
···
 	{ "qt602240_ts", 0 },
 	{ "atmel_mxt_ts", 0 },
 	{ "atmel_mxt_tp", 0 },
+	{ "maxtouch", 0 },
 	{ "mXT224", 0 },
 	{ }
 };

drivers/input/touchscreen/elants_i2c.c

···
 
 	disable_irq(client->irq);
 
-	if (device_may_wakeup(dev) || ts->keep_power_in_suspend) {
+	if (device_may_wakeup(dev)) {
+		/*
+		 * The device will automatically enter idle mode
+		 * that has reduced power consumption.
+		 */
+		ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);
+	} else if (ts->keep_power_in_suspend) {
 		for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
 			error = elants_i2c_send(client, set_sleep_cmd,
 						sizeof(set_sleep_cmd));
···
 			dev_err(&client->dev,
 				"suspend command failed: %d\n", error);
 		}
-
-		if (device_may_wakeup(dev))
-			ts->wake_irq_enabled =
-					(enable_irq_wake(client->irq) == 0);
 	} else {
 		elants_i2c_power_off(ts);
 	}
···
 	int retry_cnt;
 	int error;
 
-	if (device_may_wakeup(dev) && ts->wake_irq_enabled)
-		disable_irq_wake(client->irq);
-
-	if (ts->keep_power_in_suspend) {
+	if (device_may_wakeup(dev)) {
+		if (ts->wake_irq_enabled)
+			disable_irq_wake(client->irq);
+		elants_i2c_sw_reset(client);
+	} else if (ts->keep_power_in_suspend) {
 		for (retry_cnt = 0; retry_cnt < MAX_RETRIES; retry_cnt++) {
 			error = elants_i2c_send(client, set_active_cmd,
 						sizeof(set_active_cmd));