Merge branch 'linus' into tracing/core

Merge reason: tracing/core was on a .30-rc1 base and was missing out on
              on a handful of tracing fixes present in .30-rc5-almost.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

28 files changed, 383 insertions, 115 deletions

diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ebf4be5b7c4e..2d175b5928ff 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -50,9 +50,8 @@ static LIST_HEAD(gameport_list);
 
 static struct bus_type gameport_bus;
 
-static void gameport_add_driver(struct gameport_driver *drv);
 static void gameport_add_port(struct gameport *gameport);
-static void gameport_destroy_port(struct gameport *gameport);
+static void gameport_attach_driver(struct gameport_driver *drv);
 static void gameport_reconnect_port(struct gameport *gameport);
 static void gameport_disconnect_port(struct gameport *gameport);
 
@@ -230,7 +229,6 @@ static void gameport_find_driver(struct gameport *gameport)
 
 enum gameport_event_type {
 	GAMEPORT_REGISTER_PORT,
-	GAMEPORT_REGISTER_DRIVER,
 	GAMEPORT_ATTACH_DRIVER,
 };
 
@@ -374,8 +372,8 @@ static void gameport_handle_event(void)
 				gameport_add_port(event->object);
 				break;
 
-			case GAMEPORT_REGISTER_DRIVER:
-				gameport_add_driver(event->object);
+			case GAMEPORT_ATTACH_DRIVER:
+				gameport_attach_driver(event->object);
 				break;
 
 			default:
@@ -706,14 +704,14 @@ static int gameport_driver_remove(struct device *dev)
 	return 0;
 }
 
-static void gameport_add_driver(struct gameport_driver *drv)
+static void gameport_attach_driver(struct gameport_driver *drv)
 {
 	int error;
 
-	error = driver_register(&drv->driver);
+	error = driver_attach(&drv->driver);
 	if (error)
 		printk(KERN_ERR
-			"gameport: driver_register() failed for %s, error: %d\n",
+			"gameport: driver_attach() failed for %s, error: %d\n",
 			drv->driver.name, error);
 }
 
diff --git a/drivers/input/input.c b/drivers/input/input.c
index d44065d2e662..e54e002665b0 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -29,6 +29,23 @@ MODULE_LICENSE("GPL");
 
 #define INPUT_DEVICES	256
 
+/*
+ * EV_ABS events which should not be cached are listed here.
+ */
+static unsigned int input_abs_bypass_init_data[] __initdata = {
+	ABS_MT_TOUCH_MAJOR,
+	ABS_MT_TOUCH_MINOR,
+	ABS_MT_WIDTH_MAJOR,
+	ABS_MT_WIDTH_MINOR,
+	ABS_MT_ORIENTATION,
+	ABS_MT_POSITION_X,
+	ABS_MT_POSITION_Y,
+	ABS_MT_TOOL_TYPE,
+	ABS_MT_BLOB_ID,
+	0
+};
+static unsigned long input_abs_bypass[BITS_TO_LONGS(ABS_CNT)];
+
 static LIST_HEAD(input_dev_list);
 static LIST_HEAD(input_handler_list);
 
@@ -161,6 +178,10 @@ static void input_handle_event(struct input_dev *dev,
 				disposition = INPUT_PASS_TO_HANDLERS;
 			}
 			break;
+		case SYN_MT_REPORT:
+			dev->sync = 0;
+			disposition = INPUT_PASS_TO_HANDLERS;
+			break;
 		}
 		break;
 
@@ -192,6 +213,11 @@ static void input_handle_event(struct input_dev *dev,
 	case EV_ABS:
 		if (is_event_supported(code, dev->absbit, ABS_MAX)) {
 
+			if (test_bit(code, input_abs_bypass)) {
+				disposition = INPUT_PASS_TO_HANDLERS;
+				break;
+			}
+
 			value = input_defuzz_abs_event(value,
 					dev->abs[code], dev->absfuzz[code]);
 
@@ -1549,7 +1575,6 @@ int input_register_handle(struct input_handle *handle)
 		return error;
 	list_add_tail_rcu(&handle->d_node, &dev->h_list);
 	mutex_unlock(&dev->mutex);
-	synchronize_rcu();
 
 	/*
 	 * Since we are supposed to be called from ->connect()
@@ -1635,10 +1660,20 @@ static const struct file_operations input_fops = {
 	.open = input_open_file,
 };
 
+static void __init input_init_abs_bypass(void)
+{
+	const unsigned int *p;
+
+	for (p = input_abs_bypass_init_data; *p; p++)
+		input_abs_bypass[BIT_WORD(*p)] |= BIT_MASK(*p);
+}
+
 static int __init input_init(void)
 {
 	int err;
 
+	input_init_abs_bypass();
+
 	err = class_register(&input_class);
 	if (err) {
 		printk(KERN_ERR "input: unable to register input_dev class\n");
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index f999dc60c3b8..444dec07e5d8 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -880,7 +880,7 @@ static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
 };
 
 /*
- * Samsung NC10 with Fn+F? key release not working
+ * Samsung NC10,NC20 with Fn+F? key release not working
  */
 static unsigned int atkbd_samsung_forced_release_keys[] = {
 	0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
@@ -1534,6 +1534,24 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
 		.driver_data = atkbd_samsung_forced_release_keys,
 	},
 	{
+		.ident = "Samsung NC20",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
+		},
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_samsung_forced_release_keys,
+	},
+	{
+		.ident = "Samsung SQ45S70S",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
+		},
+		.callback = atkbd_setup_forced_release,
+		.driver_data = atkbd_samsung_forced_release_keys,
+	},
+	{
 		.ident = "Fujitsu Amilo PA 1510",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index e94b7d735aca..d427f322e207 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -252,7 +252,7 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
 	}
 
 	error = request_irq(bf54x_kpad->irq, bfin_kpad_isr,
-				 IRQF_SAMPLE_RANDOM, DRV_NAME, pdev);
+				0, DRV_NAME, pdev);
 	if (error) {
 		printk(KERN_ERR DRV_NAME
 			": unable to claim irq %d; error %d\n",
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 058fa8b02c21..87ec7b18ac69 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -100,8 +100,20 @@ static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
 	/* disable keyboard interrupt and schedule for handling */
 	if (cpu_is_omap24xx()) {
 		int i;
-		for (i = 0; i < omap_kp->rows; i++)
-			disable_irq(gpio_to_irq(row_gpios[i]));
+
+		for (i = 0; i < omap_kp->rows; i++) {
+			int gpio_irq = gpio_to_irq(row_gpios[i]);
+			/*
+			 * The interrupt which we're currently handling should
+			 * be disabled _nosync() to avoid deadlocks waiting
+			 * for this handler to complete.  All others should
+			 * be disabled the regular way for SMP safety.
+			 */
+			if (gpio_irq == irq)
+				disable_irq_nosync(gpio_irq);
+			else
+				disable_irq(gpio_irq);
+		}
 	} else
 		/* disable keyboard interrupt and schedule for handling */
 		omap_writew(1, OMAP_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 203abac1e23e..5c0a631d1455 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -214,7 +214,7 @@ config INPUT_SGI_BTNS
 
 config HP_SDC_RTC
 	tristate "HP SDC Real Time Clock"
-	depends on GSC || HP300
+	depends on (GSC || HP300) && SERIO
 	select HP_SDC
 	help
 	  Say Y here if you want to support the built-in real time clock
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index cbedf957cc58..daecc75c72e6 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -37,6 +37,7 @@
 #define ALPS_FW_BK_2	0x40
 
 static const struct alps_model_info alps_model_data[] = {
+	{ { 0x32, 0x02, 0x14 },	0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
 	{ { 0x33, 0x02, 0x0a },	0x88, 0xf8, ALPS_OLDPROTO },		/* UMAX-530T */
 	{ { 0x53, 0x02, 0x0a },	0xf8, 0xf8, 0 },
 	{ { 0x53, 0x02, 0x14 },	0xf8, 0xf8, 0 },
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index 454b96112f03..e0140fdc02a5 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -255,15 +255,22 @@ MODULE_PARM_DESC(debug, "Activate debugging output");
  */
 static int atp_geyser_init(struct usb_device *udev)
 {
-	char data[8];
+	char *data;
 	int size;
 	int i;
+	int ret;
+
+	data = kmalloc(8, GFP_KERNEL);
+	if (!data) {
+		err("Out of memory");
+		return -ENOMEM;
+	}
 
 	size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 			ATP_GEYSER_MODE_READ_REQUEST_ID,
 			USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 			ATP_GEYSER_MODE_REQUEST_VALUE,
-			ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
+			ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
 
 	if (size != 8) {
 		dprintk("atp_geyser_init: read error\n");
@@ -271,7 +278,8 @@ static int atp_geyser_init(struct usb_device *udev)
 			dprintk("appletouch[%d]: %d\n", i, data[i]);
 
 		err("Failed to read mode from device.");
-		return -EIO;
+		ret = -EIO;
+		goto out_free;
 	}
 
 	/* Apply the mode switch */
@@ -281,7 +289,7 @@ static int atp_geyser_init(struct usb_device *udev)
 			ATP_GEYSER_MODE_WRITE_REQUEST_ID,
 			USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 			ATP_GEYSER_MODE_REQUEST_VALUE,
-			ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000);
+			ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
 
 	if (size != 8) {
 		dprintk("atp_geyser_init: write error\n");
@@ -289,9 +297,13 @@ static int atp_geyser_init(struct usb_device *udev)
 			dprintk("appletouch[%d]: %d\n", i, data[i]);
 
 		err("Failed to request geyser raw mode");
-		return -EIO;
+		ret = -EIO;
+		goto out_free;
 	}
-	return 0;
+	ret = 0;
+out_free:
+	kfree(data);
+	return ret;
 }
 
 /*
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 2998a6ac9ae4..2d8fc0bf6923 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -51,6 +51,10 @@
 #define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI	0x0230
 #define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO	0x0231
 #define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS	0x0232
+/* Macbook5,1 (unibody), aka wellspring3 */
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI	0x0236
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO	0x0237
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS	0x0238
 
 #define BCM5974_DEVICE(prod) {					\
 	.match_flags = (USB_DEVICE_ID_MATCH_DEVICE |		\
@@ -72,6 +76,10 @@ static const struct usb_device_id bcm5974_table[] = {
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
 	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
+	/* Macbook5,1 */
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
+	BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
 	/* Terminating entry */
 	{}
 };
@@ -96,14 +104,23 @@ struct bt_data {
 	u8 rel_y;		/* relative y coordinate */
 };
 
-/* trackpad header structure */
-struct tp_header {
-	u8 unknown1[16];	/* constants, timers, etc */
-	u8 fingers;		/* number of fingers on trackpad */
-	u8 unknown2[9];		/* constants, timers, etc */
+/* trackpad header types */
+enum tp_type {
+	TYPE1,			/* plain trackpad */
+	TYPE2			/* button integrated in trackpad */
 };
 
-/* trackpad finger structure */
+/* trackpad finger data offsets, le16-aligned */
+#define FINGER_TYPE1		(13 * sizeof(__le16))
+#define FINGER_TYPE2		(15 * sizeof(__le16))
+
+/* trackpad button data offsets */
+#define BUTTON_TYPE2		15
+
+/* list of device capability bits */
+#define HAS_INTEGRATED_BUTTON	1
+
+/* trackpad finger structure, le16-aligned */
 struct tp_finger {
 	__le16 origin;		/* zero when switching track finger */
 	__le16 abs_x;		/* absolute x coodinate */
@@ -117,13 +134,11 @@ struct tp_finger {
 	__le16 force_minor;	/* trackpad force, minor axis? */
 	__le16 unused[3];	/* zeros */
 	__le16 multi;		/* one finger: varies, more fingers: constant */
-};
+} __attribute__((packed,aligned(2)));
 
-/* trackpad data structure, empirically at least ten fingers */
-struct tp_data {
-	struct tp_header header;
-	struct tp_finger finger[16];
-};
+/* trackpad finger data size, empirically at least ten fingers */
+#define SIZEOF_FINGER		sizeof(struct tp_finger)
+#define SIZEOF_ALL_FINGERS	(16 * SIZEOF_FINGER)
 
 /* device-specific parameters */
 struct bcm5974_param {
@@ -136,9 +151,12 @@ struct bcm5974_param {
 /* device-specific configuration */
 struct bcm5974_config {
 	int ansi, iso, jis;	/* the product id of this device */
+	int caps;		/* device capability bitmask */
 	int bt_ep;		/* the endpoint of the button interface */
 	int bt_datalen;		/* data length of the button interface */
 	int tp_ep;		/* the endpoint of the trackpad interface */
+	enum tp_type tp_type;	/* type of trackpad interface */
+	int tp_offset;		/* offset to trackpad finger data */
 	int tp_datalen;		/* data length of the trackpad interface */
 	struct bcm5974_param p;	/* finger pressure limits */
 	struct bcm5974_param w;	/* finger width limits */
@@ -158,7 +176,7 @@ struct bcm5974 {
 	struct urb *bt_urb;		/* button usb request block */
 	struct bt_data *bt_data;	/* button transferred data */
 	struct urb *tp_urb;		/* trackpad usb request block */
-	struct tp_data *tp_data;	/* trackpad transferred data */
+	u8 *tp_data;			/* trackpad transferred data */
 	int fingers;			/* number of fingers on trackpad */
 };
 
@@ -183,8 +201,9 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		USB_DEVICE_ID_APPLE_WELLSPRING_ANSI,
 		USB_DEVICE_ID_APPLE_WELLSPRING_ISO,
 		USB_DEVICE_ID_APPLE_WELLSPRING_JIS,
+		0,
 		0x84, sizeof(struct bt_data),
-		0x81, sizeof(struct tp_data),
+		0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
 		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
 		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
 		{ DIM_X, DIM_X / SN_COORD, -4824, 5342 },
@@ -194,13 +213,26 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI,
 		USB_DEVICE_ID_APPLE_WELLSPRING2_ISO,
 		USB_DEVICE_ID_APPLE_WELLSPRING2_JIS,
+		0,
 		0x84, sizeof(struct bt_data),
-		0x81, sizeof(struct tp_data),
+		0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
 		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
 		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
 		{ DIM_X, DIM_X / SN_COORD, -4824, 4824 },
 		{ DIM_Y, DIM_Y / SN_COORD, -172, 4290 }
 	},
+	{
+		USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI,
+		USB_DEVICE_ID_APPLE_WELLSPRING3_ISO,
+		USB_DEVICE_ID_APPLE_WELLSPRING3_JIS,
+		HAS_INTEGRATED_BUTTON,
+		0x84, sizeof(struct bt_data),
+		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+		{ DIM_X, DIM_X / SN_COORD, -4460, 5166 },
+		{ DIM_Y, DIM_Y / SN_COORD, -75, 6700 }
+	},
 	{}
 };
 
@@ -257,6 +289,7 @@ static void setup_events_to_report(struct input_dev *input_dev,
 	__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
 	__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
 	__set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
+	__set_bit(BTN_TOOL_QUADTAP, input_dev->keybit);
 	__set_bit(BTN_LEFT, input_dev->keybit);
 }
 
@@ -266,6 +299,11 @@ static int report_bt_state(struct bcm5974 *dev, int size)
 	if (size != sizeof(struct bt_data))
 		return -EIO;
 
+	dprintk(7,
+		"bcm5974: button data: %x %x %x %x\n",
+		dev->bt_data->unknown1, dev->bt_data->button,
+		dev->bt_data->rel_x, dev->bt_data->rel_y);
+
 	input_report_key(dev->input, BTN_LEFT, dev->bt_data->button);
 	input_sync(dev->input);
 
@@ -276,29 +314,37 @@ static int report_bt_state(struct bcm5974 *dev, int size)
 static int report_tp_state(struct bcm5974 *dev, int size)
 {
 	const struct bcm5974_config *c = &dev->cfg;
-	const struct tp_finger *f = dev->tp_data->finger;
+	const struct tp_finger *f;
 	struct input_dev *input = dev->input;
-	const int fingers = (size - 26) / 28;
-	int raw_p, raw_w, raw_x, raw_y;
-	int ptest = 0, origin = 0, nmin = 0, nmax = 0;
+	int raw_p, raw_w, raw_x, raw_y, raw_n;
+	int ptest = 0, origin = 0, ibt = 0, nmin = 0, nmax = 0;
 	int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0;
 
-	if (size < 26 || (size - 26) % 28 != 0)
+	if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0)
 		return -EIO;
 
+	/* finger data, le16-aligned */
+	f = (const struct tp_finger *)(dev->tp_data + c->tp_offset);
+	raw_n = (size - c->tp_offset) / SIZEOF_FINGER;
+
 	/* always track the first finger; when detached, start over */
-	if (fingers) {
+	if (raw_n) {
 		raw_p = raw2int(f->force_major);
 		raw_w = raw2int(f->size_major);
 		raw_x = raw2int(f->abs_x);
 		raw_y = raw2int(f->abs_y);
 
 		dprintk(9,
-			"bcm5974: raw: p: %+05d w: %+05d x: %+05d y: %+05d\n",
-			raw_p, raw_w, raw_x, raw_y);
+			"bcm5974: "
+			"raw: p: %+05d w: %+05d x: %+05d y: %+05d n: %d\n",
+			raw_p, raw_w, raw_x, raw_y, raw_n);
 
 		ptest = int2bound(&c->p, raw_p);
 		origin = raw2int(f->origin);
+
+		/* set the integrated button if applicable */
+		if (c->tp_type == TYPE2)
+			ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
 	}
 
 	/* while tracking finger still valid, count all fingers */
@@ -307,12 +353,13 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 		abs_w = int2bound(&c->w, raw_w);
 		abs_x = int2bound(&c->x, raw_x - c->x.devmin);
 		abs_y = int2bound(&c->y, c->y.devmax - raw_y);
-		for (; f != dev->tp_data->finger + fingers; f++) {
+		while (raw_n--) {
 			ptest = int2bound(&c->p, raw2int(f->force_major));
 			if (ptest > PRESSURE_LOW)
 				nmax++;
 			if (ptest > PRESSURE_HIGH)
 				nmin++;
+			f++;
 		}
 	}
 
@@ -324,7 +371,8 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 	input_report_key(input, BTN_TOUCH, dev->fingers > 0);
 	input_report_key(input, BTN_TOOL_FINGER, dev->fingers == 1);
 	input_report_key(input, BTN_TOOL_DOUBLETAP, dev->fingers == 2);
-	input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers > 2);
+	input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers == 3);
+	input_report_key(input, BTN_TOOL_QUADTAP, dev->fingers > 3);
 
 	input_report_abs(input, ABS_PRESSURE, abs_p);
 	input_report_abs(input, ABS_TOOL_WIDTH, abs_w);
@@ -335,11 +383,15 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 
 		dprintk(8,
 			"bcm5974: abs: p: %+05d w: %+05d x: %+05d y: %+05d "
-			"nmin: %d nmax: %d n: %d\n",
-			abs_p, abs_w, abs_x, abs_y, nmin, nmax, dev->fingers);
+			"nmin: %d nmax: %d n: %d ibt: %d\n", abs_p, abs_w,
+			abs_x, abs_y, nmin, nmax, dev->fingers, ibt);
 
 	}
 
+	/* type 2 reports button events via ibt only */
+	if (c->tp_type == TYPE2)
+		input_report_key(input, BTN_LEFT, ibt);
+
 	input_sync(input);
 
 	return 0;
@@ -649,6 +701,8 @@ static int bcm5974_probe(struct usb_interface *iface,
 	input_dev->name = "bcm5974";
 	input_dev->phys = dev->phys;
 	usb_to_input_id(dev->udev, &input_dev->id);
+	/* report driver capabilities via the version field */
+	input_dev->id.version = cfg->caps;
 	input_dev->dev.parent = &iface->dev;
 
 	input_set_drvdata(input_dev, dev);
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 6ab0eb1ada1c..4bc78892ba91 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1,7 +1,7 @@
 /*
- * Elantech Touchpad driver (v5)
+ * Elantech Touchpad driver (v6)
  *
- * Copyright (C) 2007-2008 Arjan Opmeer <arjan@opmeer.net>
+ * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published
@@ -178,6 +178,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	struct elantech_data *etd = psmouse->private;
 	unsigned char *packet = psmouse->packet;
 	int fingers;
+	static int old_fingers;
 
 	if (etd->fw_version_maj == 0x01) {
 		/* byte 0:  D   U  p1  p2   1  p3   R   L
@@ -190,6 +191,14 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 		fingers = (packet[0] & 0xc0) >> 6;
 	}
 
+	if (etd->jumpy_cursor) {
+		/* Discard packets that are likely to have bogus coordinates */
+		if (fingers > old_fingers) {
+			elantech_debug("elantech.c: discarding packet\n");
+			goto discard_packet_v1;
+		}
+	}
+
 	input_report_key(dev, BTN_TOUCH, fingers != 0);
 
 	/* byte 2: x7  x6  x5  x4  x3  x2  x1  x0
@@ -216,6 +225,9 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	}
 
 	input_sync(dev);
+
+ discard_packet_v1:
+	old_fingers = fingers;
 }
 
 /*
@@ -363,9 +375,14 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
 			rc = -1;
 			break;
 		}
+	}
+
+	if (rc == 0) {
 		/*
-		 * Read back reg 0x10. The touchpad is probably initalising
-		 * and not ready until we read back the value we just wrote.
+		 * Read back reg 0x10. For hardware version 1 we must make
+		 * sure the absolute mode bit is set. For hardware version 2
+		 * the touchpad is probably initalising and not ready until
+		 * we read back the value we just wrote.
 		 */
 		do {
 			rc = elantech_read_reg(psmouse, 0x10, &val);
@@ -373,12 +390,18 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
 				break;
 			tries--;
 			elantech_debug("elantech.c: retrying read (%d).\n",
-				tries);
+					tries);
 			msleep(ETP_READ_BACK_DELAY);
 		} while (tries > 0);
-		if (rc)
+
+		if (rc) {
 			pr_err("elantech.c: failed to read back register 0x10.\n");
-		break;
+		} else if (etd->hw_version == 1 &&
+			   !(val & ETP_R10_ABSOLUTE_MODE)) {
+			pr_err("elantech.c: touchpad refuses "
+				"to switch to absolute mode.\n");
+			rc = -1;
+		}
 	}
 
 	if (rc)
@@ -662,6 +685,17 @@ int elantech_init(struct psmouse *psmouse)
 		param[0], param[1], param[2]);
 	etd->capabilities = param[0];
 
+	/*
+	 * This firmware seems to suffer from misreporting coordinates when
+	 * a touch action starts causing the mouse cursor or scrolled page
+	 * to jump. Enable a workaround.
+	 */
+	if (etd->fw_version_maj == 0x02 && etd->fw_version_min == 0x22) {
+		pr_info("elantech.c: firmware version 2.34 detected, "
+			"enabling jumpy cursor workaround\n");
+		etd->jumpy_cursor = 1;
+	}
+
 	if (elantech_set_absolute_mode(psmouse)) {
 		pr_err("elantech.c: failed to put touchpad into absolute mode.\n");
 		goto init_fail;
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index bee282b540bc..ed848cc80814 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -1,7 +1,7 @@
 /*
- * Elantech Touchpad driver (v5)
+ * Elantech Touchpad driver (v6)
  *
- * Copyright (C) 2007-2008 Arjan Opmeer <arjan@opmeer.net>
+ * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published
@@ -104,6 +104,7 @@ struct elantech_data {
 	unsigned char fw_version_min;
 	unsigned char hw_version;
 	unsigned char paritycheck;
+	unsigned char jumpy_cursor;
 	unsigned char parity[256];
 };
 
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index df81b0aaa9f8..15ac3205ac05 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -61,6 +61,12 @@ static const struct dmi_system_id lifebook_dmi_table[] = {
 		},
 	},
 	{
+		.ident = "Lifebook B-2130",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
+		},
+	},
+	{
 		.ident = "Lifebook B213x/B2150",
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
index d196abfb68bc..5f278176eb9b 100644
--- a/drivers/input/mouse/maplemouse.c
+++ b/drivers/input/mouse/maplemouse.c
@@ -2,8 +2,8 @@
  *	SEGA Dreamcast mouse driver
  *	Based on drivers/usb/usbmouse.c
  *
- *	Copyright Yaegashi Takeshi, 2001
- *	Adrian McMenamin, 2008
+ *	Copyright (c) Yaegashi Takeshi, 2001
+ *	Copyright (c) Adrian McMenamin, 2008 - 2009
  */
 
 #include <linux/kernel.h>
@@ -29,7 +29,7 @@ static void dc_mouse_callback(struct mapleq *mq)
 	struct maple_device *mapledev = mq->dev;
 	struct dc_mouse *mse = maple_get_drvdata(mapledev);
 	struct input_dev *dev = mse->dev;
-	unsigned char *res = mq->recvbuf;
+	unsigned char *res = mq->recvbuf->buf;
 
 	buttons = ~res[8];
 	relx = *(unsigned short *)(res + 12) - 512;
@@ -47,7 +47,7 @@ static void dc_mouse_callback(struct mapleq *mq)
 
 static int dc_mouse_open(struct input_dev *dev)
 {
-	struct dc_mouse *mse = dev->dev.platform_data;
+	struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
 
 	maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
 		MAPLE_FUNC_MOUSE);
@@ -57,29 +57,33 @@ static int dc_mouse_open(struct input_dev *dev)
 
 static void dc_mouse_close(struct input_dev *dev)
 {
-	struct dc_mouse *mse = dev->dev.platform_data;
+	struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
 
 	maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
 		MAPLE_FUNC_MOUSE);
 }
 
-
+/* allow the mouse to be used */
 static int __devinit probe_maple_mouse(struct device *dev)
 {
 	struct maple_device *mdev = to_maple_dev(dev);
 	struct maple_driver *mdrv = to_maple_driver(dev->driver);
+	int error;
 	struct input_dev *input_dev;
 	struct dc_mouse *mse;
-	int error;
 
 	mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
-	input_dev = input_allocate_device();
-
-	if (!mse || !input_dev) {
+	if (!mse) {
 		error = -ENOMEM;
 		goto fail;
 	}
 
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		error = -ENOMEM;
+		goto fail_nomem;
+	}
+
 	mse->dev = input_dev;
 	mse->mdev = mdev;
 
@@ -89,25 +93,24 @@ static int __devinit probe_maple_mouse(struct device *dev)
 		BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
 	input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
 		BIT_MASK(REL_WHEEL);
-	input_dev->name = mdev->product_name;
-	input_dev->id.bustype = BUS_HOST;
 	input_dev->open = dc_mouse_open;
 	input_dev->close = dc_mouse_close;
+	input_dev->name = mdev->product_name;
+	input_dev->id.bustype = BUS_HOST;
+	error =	input_register_device(input_dev);
+	if (error)
+		goto fail_register;
 
 	mdev->driver = mdrv;
 	maple_set_drvdata(mdev, mse);
 
-	error =	input_register_device(input_dev);
-	if (error)
-		goto fail;
-
-	return 0;
+	return error;
 
-fail:
+fail_register:
 	input_free_device(input_dev);
-	maple_set_drvdata(mdev, NULL);
+fail_nomem:
 	kfree(mse);
-	mdev->driver = NULL;
+fail:
 	return error;
 }
 
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index f63995f854ff..3941f97cfa60 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -108,7 +108,6 @@ static int pc110pad_open(struct input_dev *dev)
  */
 static int __init pc110pad_init(void)
 {
-	struct pci_dev *dev;
 	int err;
 
 	if (!no_pci_devices())
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index bfe49243f38b..1c9410d1822c 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -819,6 +819,7 @@ static const struct parisc_device_id hp_sdc_tbl[] = {
 MODULE_DEVICE_TABLE(parisc, hp_sdc_tbl);
 
 static int __init hp_sdc_init_hppa(struct parisc_device *d);
+static struct delayed_work moduleloader_work;
 
 static struct parisc_driver hp_sdc_driver = {
 	.name =		"hp_sdc",
@@ -930,8 +931,15 @@ static int __init hp_sdc_init(void)
 
 #if defined(__hppa__)
 
+static void request_module_delayed(struct work_struct *work)
+{
+	request_module("hp_sdc_mlc");
+}
+
 static int __init hp_sdc_init_hppa(struct parisc_device *d)
 {
+	int ret;
+
 	if (!d)
 		return 1;
 	if (hp_sdc.dev != NULL)
@@ -944,13 +952,26 @@ static int __init hp_sdc_init_hppa(struct parisc_device *d)
 	hp_sdc.data_io		= d->hpa.start + 0x800;
 	hp_sdc.status_io	= d->hpa.start + 0x801;
 
-	return hp_sdc_init();
+	INIT_DELAYED_WORK(&moduleloader_work, request_module_delayed);
+
+	ret = hp_sdc_init();
+	/* after sucessfull initialization give SDC some time to settle
+	 * and then load the hp_sdc_mlc upper layer driver */
+	if (!ret)
+		schedule_delayed_work(&moduleloader_work,
+			msecs_to_jiffies(2000));
+
+	return ret;
 }
 
 #endif /* __hppa__ */
 
 static void hp_sdc_exit(void)
 {
+	/* do nothing if we don't have a SDC */
+	if (!hp_sdc.dev)
+		return;
+
 	write_lock_irq(&hp_sdc.lock);
 
 	/* Turn off all maskable "sub-function" irq's. */
@@ -969,6 +990,7 @@ static void hp_sdc_exit(void)
 	tasklet_kill(&hp_sdc.task);
 
 #if defined(__hppa__)
+	cancel_delayed_work_sync(&moduleloader_work);
 	if (unregister_parisc_driver(&hp_sdc_driver))
 		printk(KERN_WARNING PREFIX "Error unregistering HP SDC");
 #endif
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 83ed2d56b924..fb8a3cd3ffd0 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -377,6 +377,24 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
 	{ }
 };
 
+static struct dmi_system_id __initdata i8042_dmi_reset_table[] = {
+	{
+		.ident = "MSI Wind U-100",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+		},
+	},
+	{
+		.ident = "LG Electronics X110",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "X110"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
+		},
+	},
+	{ }
+};
+
 #ifdef CONFIG_PNP
 static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
 	{
@@ -386,6 +404,13 @@ static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 		},
 	},
+	{
+		.ident = "MSI Wind U-100",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+		},
+	},
 	{ }
 };
 #endif
@@ -698,6 +723,9 @@ static int __init i8042_platform_init(void)
 #endif
 
 #ifdef CONFIG_X86
+	if (dmi_check_system(i8042_dmi_reset_table))
+		i8042_reset = 1;
+
 	if (dmi_check_system(i8042_dmi_noloop_table))
 		i8042_noloop = 1;
 
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 170f71ee5772..3cffb704e374 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -712,22 +712,43 @@ static int i8042_controller_check(void)
 static int i8042_controller_selftest(void)
 {
 	unsigned char param;
+	int i = 0;
 
 	if (!i8042_reset)
 		return 0;
 
-	if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
-		printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
-		return -ENODEV;
-	}
+	/*
+	 * We try this 5 times; on some really fragile systems this does not
+	 * take the first time...
+	 */
+	do {
+
+		if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
+			printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
+			return -ENODEV;
+		}
+
+		if (param == I8042_RET_CTL_TEST)
+			return 0;
 
-	if (param != I8042_RET_CTL_TEST) {
 		printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
-			 param, I8042_RET_CTL_TEST);
-		return -EIO;
-	}
+			param, I8042_RET_CTL_TEST);
+		msleep(50);
+	} while (i++ < 5);
 
+#ifdef CONFIG_X86
+	/*
+	 * On x86, we don't fail entire i8042 initialization if controller
+	 * reset fails in hopes that keyboard port will still be functional
+	 * and user will still get a working keyboard. This is especially
+	 * important on netbooks. On other arches we trust hardware more.
+	 */
+	printk(KERN_INFO
+		"i8042: giving up on controller selftest, continuing anyway...\n");
 	return 0;
+#else
+	return -EIO;
+#endif
 }
 
 /*
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index 57953c0eb82f..f412c69478a8 100644
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -77,7 +77,7 @@ static irqreturn_t ps2_txint(int irq, void *dev_id)
 	spin_lock(&ps2if->lock);
 	status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
 	if (ps2if->head == ps2if->tail) {
-		disable_irq(irq);
+		disable_irq_nosync(irq);
 		/* done */
 	} else if (status & PS2STAT_TXE) {
 		sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA);
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 677680e9f54f..9710bfd49cf9 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -11,7 +11,7 @@
  *  Copyright (c) 2000 Daniel Egger		<egger@suse.de>
  *  Copyright (c) 2001 Frederic Lepied		<flepied@mandrakesoft.com>
  *  Copyright (c) 2004 Panagiotis Issaris	<panagiotis.issaris@mech.kuleuven.ac.be>
- *  Copyright (c) 2002-2008 Ping Cheng		<pingc@wacom.com>
+ *  Copyright (c) 2002-2009 Ping Cheng		<pingc@wacom.com>
  *
  *  ChangeLog:
  *      v0.1 (vp)  - Initial release
@@ -67,6 +67,7 @@
  *      v1.47 (pc) - Added support for Bamboo
  *      v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
  *      v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
+ *      v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28
  */
 
 /*
@@ -87,7 +88,7 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "v1.49"
+#define DRIVER_VERSION "v1.50"
 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
 #define DRIVER_LICENSE "GPL"
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 484496daa0f3..b8624f27abf9 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -289,6 +289,7 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 			5000); /* 5 secs */
 	} while (result < 0 && limit++ < 5);
 
+	/* No need to parse the Descriptor. It isn't an error though */
 	if (result < 0)
 		goto out;
 
@@ -368,9 +369,8 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 		}
 	}
 
-	result = 0;
-
  out:
+	result = 0;
 	kfree(report);
 	return result;
 }
@@ -425,6 +425,15 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
 	endpoint = &intf->cur_altsetting->endpoint[0].desc;
 
+	/* Initialize touch_x_max and touch_y_max in case it is not defined */
+	if (wacom_wac->features->type == TABLETPC) {
+		features->touch_x_max = 1023;
+		features->touch_y_max = 1023;
+	} else {
+		features->touch_x_max = 0;
+		features->touch_y_max = 0;
+	}
+
 	/* TabletPC need to retrieve the physical and logical maximum from report descriptor */
 	if (wacom_wac->features->type == TABLETPC) {
 		if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) {
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index e4728a28f492..ecaeb7e8e75e 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -736,8 +736,8 @@ static int __devinit ad7877_probe(struct spi_device *spi)
 
 	/* Request AD7877 /DAV GPIO interrupt */
 
-	err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
-			IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+	err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING,
+			spi->dev.driver->name, ts);
 	if (err) {
 		dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
 		goto err_free_mem;
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index ea4c61d68683..5d8a70398807 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -448,8 +448,7 @@ static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
 	ad7879_setup(ts);
 
 	err = request_irq(bus->irq, ad7879_irq,
-			  IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
-			  bus->dev.driver->name, ts);
+			  IRQF_TRIGGER_FALLING, bus->dev.driver->name, ts);
 
 	if (err) {
 		dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 056ac77e2cf0..2b01e56568f8 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -127,6 +127,8 @@ struct ads7846 {
 	void			(*filter_cleanup)(void *data);
 	int			(*get_pendown_state)(void);
 	int			gpio_pendown;
+
+	void			(*wait_for_sync)(void);
 };
 
 /* leave chip selected when we're done, for quicker re-select? */
@@ -511,6 +513,10 @@ static int get_pendown_state(struct ads7846 *ts)
 	return !gpio_get_value(ts->gpio_pendown);
 }
 
+static void null_wait_for_sync(void)
+{
+}
+
 /*
  * PENIRQ only kicks the timer.  The timer only reissues the SPI transfer,
  * to retrieve touchscreen status.
@@ -686,6 +692,7 @@ static void ads7846_rx_val(void *ads)
 	default:
 		BUG();
 	}
+	ts->wait_for_sync();
 	status = spi_async(ts->spi, m);
 	if (status)
 		dev_err(&ts->spi->dev, "spi_async --> %d\n",
@@ -723,6 +730,7 @@ static enum hrtimer_restart ads7846_timer(struct hrtimer *handle)
 	} else {
 		/* pen is still down, continue with the measurement */
 		ts->msg_idx = 0;
+		ts->wait_for_sync();
 		status = spi_async(ts->spi, &ts->msg[0]);
 		if (status)
 			dev_err(&ts->spi->dev, "spi_async --> %d\n", status);
@@ -746,7 +754,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
 			 * that here.  (The "generic irq" framework may help...)
 			 */
 			ts->irq_disabled = 1;
-			disable_irq(ts->spi->irq);
+			disable_irq_nosync(ts->spi->irq);
 			ts->pending = 1;
 			hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
 					HRTIMER_MODE_REL);
@@ -947,6 +955,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 		ts->penirq_recheck_delay_usecs =
 				pdata->penirq_recheck_delay_usecs;
 
+	ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
+
 	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
 
 	input_dev->name = "ADS784x Touchscreen";
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index fa67d782c3c3..3ffd4c4b170c 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2006-2008 Marvell International Ltd.
  *	Fengwei Yin <fengwei.yin@marvell.com>
+ *	Bin Yang  <bin.yang@marvell.com>
  *	Eric Miao <eric.miao@marvell.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -175,6 +176,16 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
 			goto err_reset;
 
 		touch->state = STATE_STOP;
+
+		/* FIXME: PEN_{UP/DOWN} events are expected to be
+		 * available by stopping TSI, but this is found not
+		 * always true, delay and simulate such an event
+		 * here is more reliable
+		 */
+		mdelay(1);
+		da9034_event_handler(touch,
+				     is_pen_down(touch) ? EVENT_PEN_DOWN :
+							  EVENT_PEN_UP);
 		break;
 
 	case STATE_STOP:
@@ -189,8 +200,6 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
 			report_pen_up(touch);
 			touch->state = STATE_IDLE;
 		}
-
-		input_sync(touch->input_dev);
 		break;
 
 	case STATE_WAIT:
@@ -200,8 +209,10 @@ static void da9034_event_handler(struct da9034_touch *touch, int event)
 		if (is_pen_down(touch)) {
 			start_tsi(touch);
 			touch->state = STATE_BUSY;
-		} else
+		} else {
+			report_pen_up(touch);
 			touch->state = STATE_IDLE;
+		}
 		break;
 	}
 	return;
@@ -226,16 +237,12 @@ static int da9034_touch_notifier(struct notifier_block *nb,
 	struct da9034_touch *touch =
 		container_of(nb, struct da9034_touch, notifier);
 
-	if (event & DA9034_EVENT_PEN_DOWN) {
-		if (is_pen_down(touch))
-			da9034_event_handler(touch, EVENT_PEN_DOWN);
-		else
-			da9034_event_handler(touch, EVENT_PEN_UP);
-	}
-
 	if (event & DA9034_EVENT_TSI_READY)
 		da9034_event_handler(touch, EVENT_TSI_READY);
 
+	if ((event & DA9034_EVENT_PEN_DOWN) && touch->state == STATE_IDLE)
+		da9034_event_handler(touch, EVENT_PEN_DOWN);
+
 	return 0;
 }
 
@@ -385,6 +392,6 @@ static void __exit da9034_touch_exit(void)
 module_exit(da9034_touch_exit);
 
 MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9034");
-MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>, Bin Yang <bin.yang@marvell.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:da9034-touch");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index dfa6a84ab50a..4cc047a5116e 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -111,13 +111,12 @@ static void wm97xx_acc_pen_up(struct wm97xx *wm)
 #else
 static void wm97xx_acc_pen_up(struct wm97xx *wm)
 {
-	int count = 16;
+	unsigned int count;
+
 	schedule_timeout_uninterruptible(1);
 
-	while (count < 16) {
+	for (count = 0; count < 16; count++)
 		MODR;
-		count--;
-	}
 }
 #endif
 
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 4ab070246892..536668fbda22 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -235,7 +235,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle)
 	spin_lock_irqsave(&ts->lock, flags);
 
 	if (likely(ts->get_pendown_state())) {
-		disable_irq(ts->irq);
+		disable_irq_nosync(ts->irq);
 		hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
 					HRTIMER_MODE_REL);
 	}
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index e868264fe799..f100c7f4c1db 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -256,7 +256,7 @@ static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
 	struct ucb1400_ts *ucb = devid;
 
 	if (irqnr == ucb->irq) {
-		disable_irq(ucb->irq);
+		disable_irq_nosync(ucb->irq);
 		ucb->irq_pending = 1;
 		wake_up(&ucb->ts_wait);
 		return IRQ_HANDLED;
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index cec480bffe38..69af8385ab14 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -370,8 +370,7 @@ static int wm97xx_init_pen_irq(struct wm97xx *wm)
 	 * provided. */
 	BUG_ON(!wm->mach_ops->irq_enable);
 
-	if (request_irq(wm->pen_irq, wm97xx_pen_interrupt,
-			IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+	if (request_irq(wm->pen_irq, wm97xx_pen_interrupt, IRQF_SHARED,
 			"wm97xx-pen", wm)) {
 		dev_err(wm->dev,
 			"Failed to register pen down interrupt, polling");