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");