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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (68 commits)
  Input: adp5589-keys - add support for the ADP5585 derivatives
  Input: imx_keypad - add pm suspend and resume support
  Input: force feedback - potential integer wrap in input_ff_create()
  Input: tsc2007 - make sure that X plate resistance is specified
  Input: serio_raw - fix memory leak when closing char device
  Input: serio_raw - kick clients when disconnecting port
  Input: serio_raw - explicitly mark disconnected ports as dead
  Input: serio_raw - fix coding style issues
  Input: serio_raw - use dev_*() for messages
  Input: serio_raw - use bool for boolean data
  Input: serio_raw - perform proper locking when adding clients to list
  Input: serio_raw - rename serio_raw_list to serio_raw_client
  Input: serio_raw - use kref instead of rolling out its own refcounting
  Input: psmouse - switch to using dev_*() for messages
  Input: wacom - correct max Y value on medium bamboos
  Input: wacom - add ABS_DISTANCE to Bamboo Pen reports
  Input: wacom - remove unneeded touch pressure initialization
  Input: lm8323 - wrap suspend and resume in CONFIG_PM_SLEEP
  Input: ad7879-i2c - wrap suspend and resume in CONFIG_PM_SLEEP
  Input: synaptics_i2c - wrap suspend and resume in CONFIG_PM_SLEEP
  ...

59 files changed, 4035 insertions, 839 deletions

diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 3367f760d75..480eb9d9876 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -309,9 +309,10 @@ EXPORT_SYMBOL_GPL(input_ff_event);
  * Once ff device is created you need to setup its upload, erase,
  * playback and other handlers before registering input device
  */
-int input_ff_create(struct input_dev *dev, int max_effects)
+int input_ff_create(struct input_dev *dev, unsigned int max_effects)
 {
 	struct ff_device *ff;
+	size_t ff_dev_size;
 	int i;
 
 	if (!max_effects) {
@@ -319,8 +320,12 @@ int input_ff_create(struct input_dev *dev, int max_effects)
 		return -EINVAL;
 	}
 
-	ff = kzalloc(sizeof(struct ff_device) +
-		     max_effects * sizeof(struct file *), GFP_KERNEL);
+	ff_dev_size = sizeof(struct ff_device) +
+				max_effects * sizeof(struct file *);
+	if (ff_dev_size < max_effects) /* overflow */
+		return -EINVAL;
+
+	ff = kzalloc(ff_dev_size, GFP_KERNEL);
 	if (!ff)
 		return -ENOMEM;
 
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index c48c81f0308..9150ee78e00 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -117,6 +117,7 @@ void input_mt_report_finger_count(struct input_dev *dev, int count)
 	input_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, count == 2);
 	input_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, count == 3);
 	input_event(dev, EV_KEY, BTN_TOOL_QUADTAP, count == 4);
+	input_event(dev, EV_KEY, BTN_TOOL_QUINTTAP, count == 5);
 }
 EXPORT_SYMBOL(input_mt_report_finger_count);
 
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index b1aabde8752..b253973881b 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -49,8 +49,10 @@ static int input_open_polled_device(struct input_dev *input)
 		dev->open(dev);
 
 	/* Only start polling if polling is enabled */
-	if (dev->poll_interval > 0)
-		queue_delayed_work(system_freezable_wq, &dev->work, 0);
+	if (dev->poll_interval > 0) {
+		dev->poll(dev);
+		input_polldev_queue_work(dev);
+	}
 
 	return 0;
 }
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index b4dee9d5a05..615c21f2a55 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -33,10 +33,10 @@ config KEYBOARD_ADP5588
 	  module will be called adp5588-keys.
 
 config KEYBOARD_ADP5589
-	tristate "ADP5589 I2C QWERTY Keypad and IO Expander"
+	tristate "ADP5585/ADP5589 I2C QWERTY Keypad and IO Expander"
 	depends on I2C
 	help
-	  Say Y here if you want to use a ADP5589 attached to your
+	  Say Y here if you want to use a ADP5585/ADP5589 attached to your
 	  system I2C bus.
 
 	  To compile this driver as a module, choose M here: the
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index e34eeb8ae37..4a7f534cf64 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -550,7 +550,7 @@ static int __devinit adp5588_probe(struct i2c_client *client,
 	}
 
 	error = request_irq(client->irq, adp5588_irq,
-			    IRQF_TRIGGER_FALLING | IRQF_DISABLED,
+			    IRQF_TRIGGER_FALLING,
 			    client->dev.driver->name, kpad);
 	if (error) {
 		dev_err(&client->dev, "irq %d busy?\n", client->irq);
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index c7708263051..02b5d53031b 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -1,5 +1,5 @@
 /*
- * Description:  keypad driver for ADP5589
+ * Description:  keypad driver for ADP5589, ADP5585
  *		 I2C QWERTY Keypad and IO Expander
  * Bugs: Enter bugs at http://blackfin.uclinux.org/
  *
@@ -22,35 +22,165 @@
 
 #include <linux/input/adp5589.h>
 
+/* ADP5589/ADP5585 Common Registers */
+#define ADP5589_5_ID			0x00
+#define ADP5589_5_INT_STATUS		0x01
+#define ADP5589_5_STATUS		0x02
+#define ADP5589_5_FIFO_1		0x03
+#define ADP5589_5_FIFO_2		0x04
+#define ADP5589_5_FIFO_3		0x05
+#define ADP5589_5_FIFO_4		0x06
+#define ADP5589_5_FIFO_5		0x07
+#define ADP5589_5_FIFO_6		0x08
+#define ADP5589_5_FIFO_7		0x09
+#define ADP5589_5_FIFO_8		0x0A
+#define ADP5589_5_FIFO_9		0x0B
+#define ADP5589_5_FIFO_10		0x0C
+#define ADP5589_5_FIFO_11		0x0D
+#define ADP5589_5_FIFO_12		0x0E
+#define ADP5589_5_FIFO_13		0x0F
+#define ADP5589_5_FIFO_14		0x10
+#define ADP5589_5_FIFO_15		0x11
+#define ADP5589_5_FIFO_16		0x12
+#define ADP5589_5_GPI_INT_STAT_A	0x13
+#define ADP5589_5_GPI_INT_STAT_B	0x14
+
+/* ADP5589 Registers */
+#define ADP5589_GPI_INT_STAT_C		0x15
+#define ADP5589_GPI_STATUS_A		0x16
+#define ADP5589_GPI_STATUS_B		0x17
+#define ADP5589_GPI_STATUS_C		0x18
+#define ADP5589_RPULL_CONFIG_A		0x19
+#define ADP5589_RPULL_CONFIG_B		0x1A
+#define ADP5589_RPULL_CONFIG_C		0x1B
+#define ADP5589_RPULL_CONFIG_D		0x1C
+#define ADP5589_RPULL_CONFIG_E		0x1D
+#define ADP5589_GPI_INT_LEVEL_A		0x1E
+#define ADP5589_GPI_INT_LEVEL_B		0x1F
+#define ADP5589_GPI_INT_LEVEL_C		0x20
+#define ADP5589_GPI_EVENT_EN_A		0x21
+#define ADP5589_GPI_EVENT_EN_B		0x22
+#define ADP5589_GPI_EVENT_EN_C		0x23
+#define ADP5589_GPI_INTERRUPT_EN_A	0x24
+#define ADP5589_GPI_INTERRUPT_EN_B	0x25
+#define ADP5589_GPI_INTERRUPT_EN_C	0x26
+#define ADP5589_DEBOUNCE_DIS_A		0x27
+#define ADP5589_DEBOUNCE_DIS_B		0x28
+#define ADP5589_DEBOUNCE_DIS_C		0x29
+#define ADP5589_GPO_DATA_OUT_A		0x2A
+#define ADP5589_GPO_DATA_OUT_B		0x2B
+#define ADP5589_GPO_DATA_OUT_C		0x2C
+#define ADP5589_GPO_OUT_MODE_A		0x2D
+#define ADP5589_GPO_OUT_MODE_B		0x2E
+#define ADP5589_GPO_OUT_MODE_C		0x2F
+#define ADP5589_GPIO_DIRECTION_A	0x30
+#define ADP5589_GPIO_DIRECTION_B	0x31
+#define ADP5589_GPIO_DIRECTION_C	0x32
+#define ADP5589_UNLOCK1			0x33
+#define ADP5589_UNLOCK2			0x34
+#define ADP5589_EXT_LOCK_EVENT		0x35
+#define ADP5589_UNLOCK_TIMERS		0x36
+#define ADP5589_LOCK_CFG		0x37
+#define ADP5589_RESET1_EVENT_A		0x38
+#define ADP5589_RESET1_EVENT_B		0x39
+#define ADP5589_RESET1_EVENT_C		0x3A
+#define ADP5589_RESET2_EVENT_A		0x3B
+#define ADP5589_RESET2_EVENT_B		0x3C
+#define ADP5589_RESET_CFG		0x3D
+#define ADP5589_PWM_OFFT_LOW		0x3E
+#define ADP5589_PWM_OFFT_HIGH		0x3F
+#define ADP5589_PWM_ONT_LOW		0x40
+#define ADP5589_PWM_ONT_HIGH		0x41
+#define ADP5589_PWM_CFG			0x42
+#define ADP5589_CLOCK_DIV_CFG		0x43
+#define ADP5589_LOGIC_1_CFG		0x44
+#define ADP5589_LOGIC_2_CFG		0x45
+#define ADP5589_LOGIC_FF_CFG		0x46
+#define ADP5589_LOGIC_INT_EVENT_EN	0x47
+#define ADP5589_POLL_PTIME_CFG		0x48
+#define ADP5589_PIN_CONFIG_A		0x49
+#define ADP5589_PIN_CONFIG_B		0x4A
+#define ADP5589_PIN_CONFIG_C		0x4B
+#define ADP5589_PIN_CONFIG_D		0x4C
+#define ADP5589_GENERAL_CFG		0x4D
+#define ADP5589_INT_EN			0x4E
+
+/* ADP5585 Registers */
+#define ADP5585_GPI_STATUS_A		0x15
+#define ADP5585_GPI_STATUS_B		0x16
+#define ADP5585_RPULL_CONFIG_A		0x17
+#define ADP5585_RPULL_CONFIG_B		0x18
+#define ADP5585_RPULL_CONFIG_C		0x19
+#define ADP5585_RPULL_CONFIG_D		0x1A
+#define ADP5585_GPI_INT_LEVEL_A		0x1B
+#define ADP5585_GPI_INT_LEVEL_B		0x1C
+#define ADP5585_GPI_EVENT_EN_A		0x1D
+#define ADP5585_GPI_EVENT_EN_B		0x1E
+#define ADP5585_GPI_INTERRUPT_EN_A	0x1F
+#define ADP5585_GPI_INTERRUPT_EN_B	0x20
+#define ADP5585_DEBOUNCE_DIS_A		0x21
+#define ADP5585_DEBOUNCE_DIS_B		0x22
+#define ADP5585_GPO_DATA_OUT_A		0x23
+#define ADP5585_GPO_DATA_OUT_B		0x24
+#define ADP5585_GPO_OUT_MODE_A		0x25
+#define ADP5585_GPO_OUT_MODE_B		0x26
+#define ADP5585_GPIO_DIRECTION_A	0x27
+#define ADP5585_GPIO_DIRECTION_B	0x28
+#define ADP5585_RESET1_EVENT_A		0x29
+#define ADP5585_RESET1_EVENT_B		0x2A
+#define ADP5585_RESET1_EVENT_C		0x2B
+#define ADP5585_RESET2_EVENT_A		0x2C
+#define ADP5585_RESET2_EVENT_B		0x2D
+#define ADP5585_RESET_CFG		0x2E
+#define ADP5585_PWM_OFFT_LOW		0x2F
+#define ADP5585_PWM_OFFT_HIGH		0x30
+#define ADP5585_PWM_ONT_LOW		0x31
+#define ADP5585_PWM_ONT_HIGH		0x32
+#define ADP5585_PWM_CFG			0x33
+#define ADP5585_LOGIC_CFG		0x34
+#define ADP5585_LOGIC_FF_CFG		0x35
+#define ADP5585_LOGIC_INT_EVENT_EN	0x36
+#define ADP5585_POLL_PTIME_CFG		0x37
+#define ADP5585_PIN_CONFIG_A		0x38
+#define ADP5585_PIN_CONFIG_B		0x39
+#define ADP5585_PIN_CONFIG_D		0x3A
+#define ADP5585_GENERAL_CFG		0x3B
+#define ADP5585_INT_EN			0x3C
+
+/* ID Register */
+#define ADP5589_5_DEVICE_ID_MASK	0xF
+#define ADP5589_5_MAN_ID_MASK		0xF
+#define ADP5589_5_MAN_ID_SHIFT		4
+#define ADP5589_5_MAN_ID		0x02
+
 /* GENERAL_CFG Register */
 #define OSC_EN		(1 << 7)
 #define CORE_CLK(x)	(((x) & 0x3) << 5)
-#define LCK_TRK_LOGIC	(1 << 4)
-#define LCK_TRK_GPI	(1 << 3)
+#define LCK_TRK_LOGIC	(1 << 4)	/* ADP5589 only */
+#define LCK_TRK_GPI	(1 << 3)	/* ADP5589 only */
 #define INT_CFG		(1 << 1)
 #define RST_CFG		(1 << 0)
 
 /* INT_EN Register */
-#define LOGIC2_IEN	(1 << 5)
+#define LOGIC2_IEN	(1 << 5)	/* ADP5589 only */
 #define LOGIC1_IEN	(1 << 4)
-#define LOCK_IEN	(1 << 3)
+#define LOCK_IEN	(1 << 3)	/* ADP5589 only */
 #define OVRFLOW_IEN	(1 << 2)
 #define GPI_IEN		(1 << 1)
 #define EVENT_IEN	(1 << 0)
 
 /* Interrupt Status Register */
-#define LOGIC2_INT	(1 << 5)
+#define LOGIC2_INT	(1 << 5)	/* ADP5589 only */
 #define LOGIC1_INT	(1 << 4)
-#define LOCK_INT	(1 << 3)
+#define LOCK_INT	(1 << 3)	/* ADP5589 only */
 #define OVRFLOW_INT	(1 << 2)
 #define GPI_INT		(1 << 1)
 #define EVENT_INT	(1 << 0)
 
 /* STATUS Register */
-
-#define LOGIC2_STAT	(1 << 7)
+#define LOGIC2_STAT	(1 << 7)	/* ADP5589 only */
 #define LOGIC1_STAT	(1 << 6)
-#define LOCK_STAT	(1 << 5)
+#define LOCK_STAT	(1 << 5)	/* ADP5589 only */
 #define KEC		0xF
 
 /* PIN_CONFIG_D Register */
@@ -61,27 +191,54 @@
 #define LOCK_EN		(1 << 0)
 
 #define PTIME_MASK	0x3
-#define LTIME_MASK	0x3
+#define LTIME_MASK	0x3		/* ADP5589 only */
 
 /* Key Event Register xy */
 #define KEY_EV_PRESSED		(1 << 7)
 #define KEY_EV_MASK		(0x7F)
 
 #define KEYP_MAX_EVENT		16
+#define ADP5589_MAXGPIO		19
+#define ADP5585_MAXGPIO		11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
 
-#define MAXGPIO			19
-#define ADP_BANK(offs)		((offs) >> 3)
-#define ADP_BIT(offs)		(1u << ((offs) & 0x7))
+enum {
+	ADP5589,
+	ADP5585_01,
+	ADP5585_02
+};
+
+struct adp_constants {
+	u8 maxgpio;
+	u8 keymapsize;
+	u8 gpi_pin_row_base;
+	u8 gpi_pin_row_end;
+	u8 gpi_pin_col_base;
+	u8 gpi_pin_base;
+	u8 gpi_pin_end;
+	u8 gpimapsize_max;
+	u8 max_row_num;
+	u8 max_col_num;
+	u8 row_mask;
+	u8 col_mask;
+	u8 col_shift;
+	u8 c4_extend_cfg;
+	u8 (*bank) (u8 offset);
+	u8 (*bit) (u8 offset);
+	u8 (*reg) (u8 reg);
+};
 
 struct adp5589_kpad {
 	struct i2c_client *client;
 	struct input_dev *input;
+	const struct adp_constants *var;
 	unsigned short keycode[ADP5589_KEYMAPSIZE];
 	const struct adp5589_gpi_map *gpimap;
 	unsigned short gpimapsize;
 	unsigned extend_cfg;
+	bool is_adp5585;
+	bool adp5585_support_row5;
 #ifdef CONFIG_GPIOLIB
-	unsigned char gpiomap[MAXGPIO];
+	unsigned char gpiomap[ADP5589_MAXGPIO];
 	bool export_gpio;
 	struct gpio_chip gc;
 	struct mutex gpio_lock;	/* Protect cached dir, dat_out */
@@ -90,6 +247,129 @@ struct adp5589_kpad {
 #endif
 };
 
+/*
+ *  ADP5589 / ADP5585 derivative / variant handling
+ */
+
+
+/* ADP5589 */
+
+static unsigned char adp5589_bank(unsigned char offset)
+{
+	return offset >> 3;
+}
+
+static unsigned char adp5589_bit(unsigned char offset)
+{
+	return 1u << (offset & 0x7);
+}
+
+static unsigned char adp5589_reg(unsigned char reg)
+{
+	return reg;
+}
+
+static const struct adp_constants const_adp5589 = {
+	.maxgpio		= ADP5589_MAXGPIO,
+	.keymapsize		= ADP5589_KEYMAPSIZE,
+	.gpi_pin_row_base	= ADP5589_GPI_PIN_ROW_BASE,
+	.gpi_pin_row_end	= ADP5589_GPI_PIN_ROW_END,
+	.gpi_pin_col_base	= ADP5589_GPI_PIN_COL_BASE,
+	.gpi_pin_base		= ADP5589_GPI_PIN_BASE,
+	.gpi_pin_end		= ADP5589_GPI_PIN_END,
+	.gpimapsize_max		= ADP5589_GPIMAPSIZE_MAX,
+	.c4_extend_cfg		= 12,
+	.max_row_num		= ADP5589_MAX_ROW_NUM,
+	.max_col_num		= ADP5589_MAX_COL_NUM,
+	.row_mask		= ADP5589_ROW_MASK,
+	.col_mask		= ADP5589_COL_MASK,
+	.col_shift		= ADP5589_COL_SHIFT,
+	.bank			= adp5589_bank,
+	.bit			= adp5589_bit,
+	.reg			= adp5589_reg,
+};
+
+/* ADP5585 */
+
+static unsigned char adp5585_bank(unsigned char offset)
+{
+	return offset > ADP5585_MAX_ROW_NUM;
+}
+
+static unsigned char adp5585_bit(unsigned char offset)
+{
+	return (offset > ADP5585_MAX_ROW_NUM) ?
+		1u << (offset - ADP5585_COL_SHIFT) : 1u << offset;
+}
+
+static const unsigned char adp5585_reg_lut[] = {
+	[ADP5589_GPI_STATUS_A]		= ADP5585_GPI_STATUS_A,
+	[ADP5589_GPI_STATUS_B]		= ADP5585_GPI_STATUS_B,
+	[ADP5589_RPULL_CONFIG_A]	= ADP5585_RPULL_CONFIG_A,
+	[ADP5589_RPULL_CONFIG_B]	= ADP5585_RPULL_CONFIG_B,
+	[ADP5589_RPULL_CONFIG_C]	= ADP5585_RPULL_CONFIG_C,
+	[ADP5589_RPULL_CONFIG_D]	= ADP5585_RPULL_CONFIG_D,
+	[ADP5589_GPI_INT_LEVEL_A]	= ADP5585_GPI_INT_LEVEL_A,
+	[ADP5589_GPI_INT_LEVEL_B]	= ADP5585_GPI_INT_LEVEL_B,
+	[ADP5589_GPI_EVENT_EN_A]	= ADP5585_GPI_EVENT_EN_A,
+	[ADP5589_GPI_EVENT_EN_B]	= ADP5585_GPI_EVENT_EN_B,
+	[ADP5589_GPI_INTERRUPT_EN_A]	= ADP5585_GPI_INTERRUPT_EN_A,
+	[ADP5589_GPI_INTERRUPT_EN_B]	= ADP5585_GPI_INTERRUPT_EN_B,
+	[ADP5589_DEBOUNCE_DIS_A]	= ADP5585_DEBOUNCE_DIS_A,
+	[ADP5589_DEBOUNCE_DIS_B]	= ADP5585_DEBOUNCE_DIS_B,
+	[ADP5589_GPO_DATA_OUT_A]	= ADP5585_GPO_DATA_OUT_A,
+	[ADP5589_GPO_DATA_OUT_B]	= ADP5585_GPO_DATA_OUT_B,
+	[ADP5589_GPO_OUT_MODE_A]	= ADP5585_GPO_OUT_MODE_A,
+	[ADP5589_GPO_OUT_MODE_B]	= ADP5585_GPO_OUT_MODE_B,
+	[ADP5589_GPIO_DIRECTION_A]	= ADP5585_GPIO_DIRECTION_A,
+	[ADP5589_GPIO_DIRECTION_B]	= ADP5585_GPIO_DIRECTION_B,
+	[ADP5589_RESET1_EVENT_A]	= ADP5585_RESET1_EVENT_A,
+	[ADP5589_RESET1_EVENT_B]	= ADP5585_RESET1_EVENT_B,
+	[ADP5589_RESET1_EVENT_C]	= ADP5585_RESET1_EVENT_C,
+	[ADP5589_RESET2_EVENT_A]	= ADP5585_RESET2_EVENT_A,
+	[ADP5589_RESET2_EVENT_B]	= ADP5585_RESET2_EVENT_B,
+	[ADP5589_RESET_CFG]		= ADP5585_RESET_CFG,
+	[ADP5589_PWM_OFFT_LOW]		= ADP5585_PWM_OFFT_LOW,
+	[ADP5589_PWM_OFFT_HIGH]		= ADP5585_PWM_OFFT_HIGH,
+	[ADP5589_PWM_ONT_LOW]		= ADP5585_PWM_ONT_LOW,
+	[ADP5589_PWM_ONT_HIGH]		= ADP5585_PWM_ONT_HIGH,
+	[ADP5589_PWM_CFG]		= ADP5585_PWM_CFG,
+	[ADP5589_LOGIC_1_CFG]		= ADP5585_LOGIC_CFG,
+	[ADP5589_LOGIC_FF_CFG]		= ADP5585_LOGIC_FF_CFG,
+	[ADP5589_LOGIC_INT_EVENT_EN]	= ADP5585_LOGIC_INT_EVENT_EN,
+	[ADP5589_POLL_PTIME_CFG]	= ADP5585_POLL_PTIME_CFG,
+	[ADP5589_PIN_CONFIG_A]		= ADP5585_PIN_CONFIG_A,
+	[ADP5589_PIN_CONFIG_B]		= ADP5585_PIN_CONFIG_B,
+	[ADP5589_PIN_CONFIG_D]		= ADP5585_PIN_CONFIG_D,
+	[ADP5589_GENERAL_CFG]		= ADP5585_GENERAL_CFG,
+	[ADP5589_INT_EN]		= ADP5585_INT_EN,
+};
+
+static unsigned char adp5585_reg(unsigned char reg)
+{
+	return adp5585_reg_lut[reg];
+}
+
+static const struct adp_constants const_adp5585 = {
+	.maxgpio		= ADP5585_MAXGPIO,
+	.keymapsize		= ADP5585_KEYMAPSIZE,
+	.gpi_pin_row_base	= ADP5585_GPI_PIN_ROW_BASE,
+	.gpi_pin_row_end	= ADP5585_GPI_PIN_ROW_END,
+	.gpi_pin_col_base	= ADP5585_GPI_PIN_COL_BASE,
+	.gpi_pin_base		= ADP5585_GPI_PIN_BASE,
+	.gpi_pin_end		= ADP5585_GPI_PIN_END,
+	.gpimapsize_max		= ADP5585_GPIMAPSIZE_MAX,
+	.c4_extend_cfg		= 10,
+	.max_row_num		= ADP5585_MAX_ROW_NUM,
+	.max_col_num		= ADP5585_MAX_COL_NUM,
+	.row_mask		= ADP5585_ROW_MASK,
+	.col_mask		= ADP5585_COL_MASK,
+	.col_shift		= ADP5585_COL_SHIFT,
+	.bank			= adp5585_bank,
+	.bit			= adp5585_bit,
+	.reg			= adp5585_reg,
+};
+
 static int adp5589_read(struct i2c_client *client, u8 reg)
 {
 	int ret = i2c_smbus_read_byte_data(client, reg);
@@ -109,19 +389,20 @@ static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
 static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
 {
 	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
-	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
-	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 
-	return !!(adp5589_read(kpad->client, ADP5589_GPI_STATUS_A + bank) &
-		  bit);
+	return !!(adp5589_read(kpad->client,
+			       kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) &
+			       bit);
 }
 
 static void adp5589_gpio_set_value(struct gpio_chip *chip,
 				   unsigned off, int val)
 {
 	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
-	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
-	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 
 	mutex_lock(&kpad->gpio_lock);
 
@@ -130,8 +411,8 @@ static void adp5589_gpio_set_value(struct gpio_chip *chip,
 	else
 		kpad->dat_out[bank] &= ~bit;
 
-	adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
-		      kpad->dat_out[bank]);
+	adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
+		      bank, kpad->dat_out[bank]);
 
 	mutex_unlock(&kpad->gpio_lock);
 }
@@ -139,14 +420,15 @@ static void adp5589_gpio_set_value(struct gpio_chip *chip,
 static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
 {
 	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
-	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
-	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 	int ret;
 
 	mutex_lock(&kpad->gpio_lock);
 
 	kpad->dir[bank] &= ~bit;
-	ret = adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
+	ret = adp5589_write(kpad->client,
+			    kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 			    kpad->dir[bank]);
 
 	mutex_unlock(&kpad->gpio_lock);
@@ -158,8 +440,8 @@ static int adp5589_gpio_direction_output(struct gpio_chip *chip,
 					 unsigned off, int val)
 {
 	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
-	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
-	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
 	int ret;
 
 	mutex_lock(&kpad->gpio_lock);
@@ -171,9 +453,10 @@ static int adp5589_gpio_direction_output(struct gpio_chip *chip,
 	else
 		kpad->dat_out[bank] &= ~bit;
 
-	ret = adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
-			    kpad->dat_out[bank]);
-	ret |= adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
+	ret = adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A)
+			    + bank, kpad->dat_out[bank]);
+	ret |= adp5589_write(kpad->client,
+			     kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
 			     kpad->dir[bank]);
 
 	mutex_unlock(&kpad->gpio_lock);
@@ -184,26 +467,29 @@ static int adp5589_gpio_direction_output(struct gpio_chip *chip,
 static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
 				const struct adp5589_kpad_platform_data *pdata)
 {
-	bool pin_used[MAXGPIO];
+	bool pin_used[ADP5589_MAXGPIO];
 	int n_unused = 0;
 	int i;
 
 	memset(pin_used, false, sizeof(pin_used));
 
-	for (i = 0; i < MAXGPIO; i++)
+	for (i = 0; i < kpad->var->maxgpio; i++)
 		if (pdata->keypad_en_mask & (1 << i))
 			pin_used[i] = true;
 
 	for (i = 0; i < kpad->gpimapsize; i++)
-		pin_used[kpad->gpimap[i].pin - ADP5589_GPI_PIN_BASE] = true;
+		pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
 
 	if (kpad->extend_cfg & R4_EXTEND_CFG)
 		pin_used[4] = true;
 
 	if (kpad->extend_cfg & C4_EXTEND_CFG)
-		pin_used[12] = true;
+		pin_used[kpad->var->c4_extend_cfg] = true;
+
+	if (!kpad->adp5585_support_row5)
+		pin_used[5] = true;
 
-	for (i = 0; i < MAXGPIO; i++)
+	for (i = 0; i < kpad->var->maxgpio; i++)
 		if (!pin_used[i])
 			kpad->gpiomap[n_unused++] = i;
 
@@ -246,11 +532,11 @@ static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
 		return error;
 	}
 
-	for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
-		kpad->dat_out[i] = adp5589_read(kpad->client,
-						ADP5589_GPO_DATA_OUT_A + i);
-		kpad->dir[i] = adp5589_read(kpad->client,
-					    ADP5589_GPIO_DIRECTION_A + i);
+	for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
+		kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
+						ADP5589_GPO_DATA_OUT_A) + i);
+		kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
+					    ADP5589_GPIO_DIRECTION_A) + i);
 	}
 
 	if (gpio_data->setup) {
@@ -317,11 +603,11 @@ static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
 	int i;
 
 	for (i = 0; i < ev_cnt; i++) {
-		int key = adp5589_read(kpad->client, ADP5589_FIFO_1 + i);
+		int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
 		int key_val = key & KEY_EV_MASK;
 
-		if (key_val >= ADP5589_GPI_PIN_BASE &&
-		    key_val <= ADP5589_GPI_PIN_END) {
+		if (key_val >= kpad->var->gpi_pin_base &&
+		    key_val <= kpad->var->gpi_pin_end) {
 			adp5589_report_switches(kpad, key, key_val);
 		} else {
 			input_report_key(kpad->input,
@@ -337,29 +623,30 @@ static irqreturn_t adp5589_irq(int irq, void *handle)
 	struct i2c_client *client = kpad->client;
 	int status, ev_cnt;
 
-	status = adp5589_read(client, ADP5589_INT_STATUS);
+	status = adp5589_read(client, ADP5589_5_INT_STATUS);
 
 	if (status & OVRFLOW_INT)	/* Unlikely and should never happen */
 		dev_err(&client->dev, "Event Overflow Error\n");
 
 	if (status & EVENT_INT) {
-		ev_cnt = adp5589_read(client, ADP5589_STATUS) & KEC;
+		ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
 		if (ev_cnt) {
 			adp5589_report_events(kpad, ev_cnt);
 			input_sync(kpad->input);
 		}
 	}
 
-	adp5589_write(client, ADP5589_INT_STATUS, status);	/* Status is W1C */
+	adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
 
 	return IRQ_HANDLED;
 }
 
-static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
+static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad,
+					unsigned short key)
 {
 	int i;
 
-	for (i = 0; i < ADP5589_KEYMAPSIZE; i++)
+	for (i = 0; i < kpad->var->keymapsize; i++)
 		if (key == kpad->keycode[i])
 			return (i + 1) | KEY_EV_PRESSED;
 
@@ -372,19 +659,23 @@ static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
 {
 	struct i2c_client *client = kpad->client;
 	const struct adp5589_kpad_platform_data *pdata =
-	    client->dev.platform_data;
-	int i, ret;
+		client->dev.platform_data;
+	u8 (*reg) (u8) = kpad->var->reg;
 	unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
 	unsigned char pull_mask = 0;
+	int i, ret;
+
+	ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
+			    pdata->keypad_en_mask & kpad->var->row_mask);
+	ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
+			     (pdata->keypad_en_mask >> kpad->var->col_shift) &
+			     kpad->var->col_mask);
 
-	ret = adp5589_write(client, ADP5589_PIN_CONFIG_A,
-			    pdata->keypad_en_mask & 0xFF);
-	ret |= adp5589_write(client, ADP5589_PIN_CONFIG_B,
-			     (pdata->keypad_en_mask >> 8) & 0xFF);
-	ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
-			     (pdata->keypad_en_mask >> 16) & 0xFF);
+	if (!kpad->is_adp5585)
+		ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
+				     (pdata->keypad_en_mask >> 16) & 0xFF);
 
-	if (pdata->en_keylock) {
+	if (!kpad->is_adp5585 && pdata->en_keylock) {
 		ret |= adp5589_write(client, ADP5589_UNLOCK1,
 				     pdata->unlock_key1);
 		ret |= adp5589_write(client, ADP5589_UNLOCK2,
@@ -395,96 +686,130 @@ static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
 	}
 
 	for (i = 0; i < KEYP_MAX_EVENT; i++)
-		ret |= adp5589_read(client, ADP5589_FIFO_1 + i);
+		ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
 
 	for (i = 0; i < pdata->gpimapsize; i++) {
 		unsigned short pin = pdata->gpimap[i].pin;
 
-		if (pin <= ADP5589_GPI_PIN_ROW_END) {
-			evt_mode1 |= (1 << (pin - ADP5589_GPI_PIN_ROW_BASE));
+		if (pin <= kpad->var->gpi_pin_row_end) {
+			evt_mode1 |= (1 << (pin - kpad->var->gpi_pin_row_base));
 		} else {
 			evt_mode2 |=
-			    ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) & 0xFF);
-			evt_mode3 |=
-			    ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) >> 8);
+			    ((1 << (pin - kpad->var->gpi_pin_col_base)) & 0xFF);
+			if (!kpad->is_adp5585)
+				evt_mode3 |= ((1 << (pin -
+					kpad->var->gpi_pin_col_base)) >> 8);
 		}
 	}
 
 	if (pdata->gpimapsize) {
-		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_A, evt_mode1);
-		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_B, evt_mode2);
-		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_C, evt_mode3);
+		ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
+				     evt_mode1);
+		ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
+				     evt_mode2);
+		if (!kpad->is_adp5585)
+			ret |= adp5589_write(client,
+					     reg(ADP5589_GPI_EVENT_EN_C),
+					     evt_mode3);
 	}
 
 	if (pdata->pull_dis_mask & pdata->pullup_en_100k &
-	    pdata->pullup_en_300k & pdata->pulldown_en_300k)
+		pdata->pullup_en_300k & pdata->pulldown_en_300k)
 		dev_warn(&client->dev, "Conflicting pull resistor config\n");
 
-	for (i = 0; i < MAXGPIO; i++) {
-		unsigned val = 0;
+	for (i = 0; i <= kpad->var->max_row_num; i++) {
+		unsigned val = 0, bit = (1 << i);
+		if (pdata->pullup_en_300k & bit)
+			val = 0;
+		else if (pdata->pulldown_en_300k & bit)
+			val = 1;
+		else if (pdata->pullup_en_100k & bit)
+			val = 2;
+		else if (pdata->pull_dis_mask & bit)
+			val = 3;
+
+		pull_mask |= val << (2 * (i & 0x3));
+
+		if (i == 3 || i == kpad->var->max_row_num) {
+			ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
+					     + (i >> 2), pull_mask);
+			pull_mask = 0;
+		}
+	}
 
-		if (pdata->pullup_en_300k & (1 << i))
+	for (i = 0; i <= kpad->var->max_col_num; i++) {
+		unsigned val = 0, bit = 1 << (i + kpad->var->col_shift);
+		if (pdata->pullup_en_300k & bit)
 			val = 0;
-		else if (pdata->pulldown_en_300k & (1 << i))
+		else if (pdata->pulldown_en_300k & bit)
 			val = 1;
-		else if (pdata->pullup_en_100k & (1 << i))
+		else if (pdata->pullup_en_100k & bit)
 			val = 2;
-		else if (pdata->pull_dis_mask & (1 << i))
+		else if (pdata->pull_dis_mask & bit)
 			val = 3;
 
 		pull_mask |= val << (2 * (i & 0x3));
 
-		if ((i & 0x3) == 0x3 || i == MAXGPIO - 1) {
+		if (i == 3 || i == kpad->var->max_col_num) {
 			ret |= adp5589_write(client,
-					     ADP5589_RPULL_CONFIG_A + (i >> 2),
-					     pull_mask);
+					     reg(ADP5585_RPULL_CONFIG_C) +
+					     (i >> 2), pull_mask);
 			pull_mask = 0;
 		}
 	}
 
 	if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
-		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_A,
+		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
 				     adp5589_get_evcode(kpad,
 							pdata->reset1_key_1));
-		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_B,
+		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
 				     adp5589_get_evcode(kpad,
 							pdata->reset1_key_2));
-		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_C,
+		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
 				     adp5589_get_evcode(kpad,
 							pdata->reset1_key_3));
 		kpad->extend_cfg |= R4_EXTEND_CFG;
 	}
 
 	if (pdata->reset2_key_1 && pdata->reset2_key_2) {
-		ret |= adp5589_write(client, ADP5589_RESET2_EVENT_A,
+		ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
 				     adp5589_get_evcode(kpad,
 							pdata->reset2_key_1));
-		ret |= adp5589_write(client, ADP5589_RESET2_EVENT_B,
+		ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
 				     adp5589_get_evcode(kpad,
 							pdata->reset2_key_2));
 		kpad->extend_cfg |= C4_EXTEND_CFG;
 	}
 
 	if (kpad->extend_cfg) {
-		ret |= adp5589_write(client, ADP5589_RESET_CFG,
+		ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
 				     pdata->reset_cfg);
-		ret |= adp5589_write(client, ADP5589_PIN_CONFIG_D,
+		ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
 				     kpad->extend_cfg);
 	}
 
-	for (i = 0; i <= ADP_BANK(MAXGPIO); i++)
-		ret |= adp5589_write(client, ADP5589_DEBOUNCE_DIS_A + i,
-				     pdata->debounce_dis_mask >> (i * 8));
+	ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
+			    pdata->debounce_dis_mask & kpad->var->row_mask);
 
-	ret |= adp5589_write(client, ADP5589_POLL_PTIME_CFG,
+	ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
+			     (pdata->debounce_dis_mask >> kpad->var->col_shift)
+			     & kpad->var->col_mask);
+
+	if (!kpad->is_adp5585)
+		ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
+				     (pdata->debounce_dis_mask >> 16) & 0xFF);
+
+	ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
 			     pdata->scan_cycle_time & PTIME_MASK);
-	ret |= adp5589_write(client, ADP5589_INT_STATUS, LOGIC2_INT |
-			     LOGIC1_INT | OVRFLOW_INT | LOCK_INT |
+	ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
+			     (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
+			     LOGIC1_INT | OVRFLOW_INT |
+			     (kpad->is_adp5585 ? 0 : LOCK_INT) |
 			     GPI_INT | EVENT_INT);	/* Status is W1C */
 
-	ret |= adp5589_write(client, ADP5589_GENERAL_CFG,
+	ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
 			     INT_CFG | OSC_EN | CORE_CLK(3));
-	ret |= adp5589_write(client, ADP5589_INT_EN,
+	ret |= adp5589_write(client, reg(ADP5589_INT_EN),
 			     OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
 
 	if (ret < 0) {
@@ -497,30 +822,33 @@ static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
 
 static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad)
 {
-	int gpi_stat1 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_A);
-	int gpi_stat2 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_B);
-	int gpi_stat3 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_C);
 	int gpi_stat_tmp, pin_loc;
 	int i;
+	int gpi_stat1 = adp5589_read(kpad->client,
+				     kpad->var->reg(ADP5589_GPI_STATUS_A));
+	int gpi_stat2 = adp5589_read(kpad->client,
+				     kpad->var->reg(ADP5589_GPI_STATUS_B));
+	int gpi_stat3 = !kpad->is_adp5585 ?
+			adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
 
 	for (i = 0; i < kpad->gpimapsize; i++) {
 		unsigned short pin = kpad->gpimap[i].pin;
 
-		if (pin <= ADP5589_GPI_PIN_ROW_END) {
+		if (pin <= kpad->var->gpi_pin_row_end) {
 			gpi_stat_tmp = gpi_stat1;
-			pin_loc = pin - ADP5589_GPI_PIN_ROW_BASE;
-		} else if ((pin - ADP5589_GPI_PIN_COL_BASE) < 8) {
+			pin_loc = pin - kpad->var->gpi_pin_row_base;
+		} else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
 			gpi_stat_tmp = gpi_stat2;
-			pin_loc = pin - ADP5589_GPI_PIN_COL_BASE;
+			pin_loc = pin - kpad->var->gpi_pin_col_base;
 		} else {
 			gpi_stat_tmp = gpi_stat3;
-			pin_loc = pin - ADP5589_GPI_PIN_COL_BASE - 8;
+			pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
 		}
 
 		if (gpi_stat_tmp < 0) {
 			dev_err(&kpad->client->dev,
-				"Can't read GPIO_DAT_STAT switch"
-				" %d default to OFF\n", pin);
+				"Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
+				pin);
 			gpi_stat_tmp = 0;
 		}
 
@@ -536,7 +864,8 @@ static int __devinit adp5589_probe(struct i2c_client *client,
 				   const struct i2c_device_id *id)
 {
 	struct adp5589_kpad *kpad;
-	const struct adp5589_kpad_platform_data *pdata;
+	const struct adp5589_kpad_platform_data *pdata =
+		client->dev.platform_data;
 	struct input_dev *input;
 	unsigned int revid;
 	int ret, i;
@@ -548,56 +877,79 @@ static int __devinit adp5589_probe(struct i2c_client *client,
 		return -EIO;
 	}
 
-	pdata = client->dev.platform_data;
 	if (!pdata) {
 		dev_err(&client->dev, "no platform data?\n");
 		return -EINVAL;
 	}
 
-	if (!((pdata->keypad_en_mask & 0xFF) &&
-			(pdata->keypad_en_mask >> 8)) || !pdata->keymap) {
+	kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
+	if (!kpad)
+		return -ENOMEM;
+
+	switch (id->driver_data) {
+	case ADP5585_02:
+		kpad->adp5585_support_row5 = true;
+	case ADP5585_01:
+		kpad->is_adp5585 = true;
+		kpad->var = &const_adp5585;
+		break;
+	case ADP5589:
+		kpad->var = &const_adp5589;
+		break;
+	}
+
+	if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
+			(pdata->keypad_en_mask >> kpad->var->col_shift)) ||
+			!pdata->keymap) {
 		dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
-		return -EINVAL;
+		error = -EINVAL;
+		goto err_free_mem;
 	}
 
-	if (pdata->keymapsize != ADP5589_KEYMAPSIZE) {
+	if (pdata->keymapsize != kpad->var->keymapsize) {
 		dev_err(&client->dev, "invalid keymapsize\n");
-		return -EINVAL;
+		error = -EINVAL;
+		goto err_free_mem;
 	}
 
 	if (!pdata->gpimap && pdata->gpimapsize) {
 		dev_err(&client->dev, "invalid gpimap from pdata\n");
-		return -EINVAL;
+		error = -EINVAL;
+		goto err_free_mem;
 	}
 
-	if (pdata->gpimapsize > ADP5589_GPIMAPSIZE_MAX) {
+	if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
 		dev_err(&client->dev, "invalid gpimapsize\n");
-		return -EINVAL;
+		error = -EINVAL;
+		goto err_free_mem;
 	}
 
 	for (i = 0; i < pdata->gpimapsize; i++) {
 		unsigned short pin = pdata->gpimap[i].pin;
 
-		if (pin < ADP5589_GPI_PIN_BASE || pin > ADP5589_GPI_PIN_END) {
+		if (pin < kpad->var->gpi_pin_base ||
+				pin > kpad->var->gpi_pin_end) {
 			dev_err(&client->dev, "invalid gpi pin data\n");
-			return -EINVAL;
+			error = -EINVAL;
+			goto err_free_mem;
 		}
 
-		if ((1 << (pin - ADP5589_GPI_PIN_ROW_BASE)) &
+		if ((1 << (pin - kpad->var->gpi_pin_row_base)) &
 				pdata->keypad_en_mask) {
 			dev_err(&client->dev, "invalid gpi row/col data\n");
-			return -EINVAL;
+			error = -EINVAL;
+			goto err_free_mem;
 		}
 	}
 
 	if (!client->irq) {
 		dev_err(&client->dev, "no IRQ?\n");
-		return -EINVAL;
+		error = -EINVAL;
+		goto err_free_mem;
 	}
 
-	kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
 	input = input_allocate_device();
-	if (!kpad || !input) {
+	if (!input) {
 		error = -ENOMEM;
 		goto err_free_mem;
 	}
@@ -605,13 +957,13 @@ static int __devinit adp5589_probe(struct i2c_client *client,
 	kpad->client = client;
 	kpad->input = input;
 
-	ret = adp5589_read(client, ADP5589_ID);
+	ret = adp5589_read(client, ADP5589_5_ID);
 	if (ret < 0) {
 		error = ret;
-		goto err_free_mem;
+		goto err_free_input;
 	}
 
-	revid = (u8) ret & ADP5589_DEVICE_ID_MASK;
+	revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
 
 	input->name = client->name;
 	input->phys = "adp5589-keys/input0";
@@ -652,7 +1004,7 @@ static int __devinit adp5589_probe(struct i2c_client *client,
 	error = input_register_device(input);
 	if (error) {
 		dev_err(&client->dev, "unable to register input device\n");
-		goto err_free_mem;
+		goto err_free_input;
 	}
 
 	error = request_threaded_irq(client->irq, NULL, adp5589_irq,
@@ -685,8 +1037,9 @@ err_free_irq:
 err_unreg_dev:
 	input_unregister_device(input);
 	input = NULL;
-err_free_mem:
+err_free_input:
 	input_free_device(input);
+err_free_mem:
 	kfree(kpad);
 
 	return error;
@@ -696,7 +1049,7 @@ static int __devexit adp5589_remove(struct i2c_client *client)
 {
 	struct adp5589_kpad *kpad = i2c_get_clientdata(client);
 
-	adp5589_write(client, ADP5589_GENERAL_CFG, 0);
+	adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
 	free_irq(client->irq, kpad);
 	input_unregister_device(kpad->input);
 	adp5589_gpio_remove(kpad);
@@ -736,7 +1089,9 @@ static int adp5589_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
 
 static const struct i2c_device_id adp5589_id[] = {
-	{"adp5589-keys", 0},
+	{"adp5589-keys", ADP5589},
+	{"adp5585-keys", ADP5585_01},
+	{"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
 	{}
 };
 
@@ -767,4 +1122,4 @@ module_exit(adp5589_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("ADP5589 Keypad driver");
+MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index cd89d17162a..9d82b3aeff5 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -271,7 +271,7 @@ static int __init davinci_ks_probe(struct platform_device *pdev)
 	}
 
 	error = request_irq(davinci_ks->irq, davinci_ks_interrupt,
-			  IRQF_DISABLED, pdev->name, davinci_ks);
+			  0, pdev->name, davinci_ks);
 	if (error < 0) {
 		dev_err(dev, "unable to register davinci key scan interrupt\n");
 		goto fail5;
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index aa17e024d80..4662c5da801 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -323,7 +323,7 @@ static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, keypad);
 
 	err = request_irq(keypad->irq, ep93xx_keypad_irq_handler,
-			  IRQF_DISABLED, pdev->name, keypad);
+			  0, pdev->name, keypad);
 	if (err)
 		goto failed_free_dev;
 
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 67df91af842..ed1ed469d08 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -461,8 +461,7 @@ static int gpio_keys_get_devtree_pdata(struct device *dev,
 	struct device_node *node, *pp;
 	int i;
 	struct gpio_keys_button *buttons;
-	const u32 *reg;
-	int len;
+	u32 reg;
 
 	node = dev->of_node;
 	if (node == NULL)
@@ -470,7 +469,7 @@ static int gpio_keys_get_devtree_pdata(struct device *dev,
 
 	memset(pdata, 0, sizeof *pdata);
 
-	pdata->rep = !!of_get_property(node, "autorepeat", &len);
+	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
 
 	/* First count the subnodes */
 	pdata->nbuttons = 0;
@@ -498,22 +497,25 @@ static int gpio_keys_get_devtree_pdata(struct device *dev,
 		buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags);
 		buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW;
 
-		reg = of_get_property(pp, "linux,code", &len);
-		if (!reg) {
+		if (of_property_read_u32(pp, "linux,code", &reg)) {
 			dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio);
 			goto out_fail;
 		}
-		buttons[i].code = be32_to_cpup(reg);
+		buttons[i].code = reg;
 
-		buttons[i].desc = of_get_property(pp, "label", &len);
+		buttons[i].desc = of_get_property(pp, "label", NULL);
 
-		reg = of_get_property(pp, "linux,input-type", &len);
-		buttons[i].type = reg ? be32_to_cpup(reg) : EV_KEY;
+		if (of_property_read_u32(pp, "linux,input-type", &reg) == 0)
+			buttons[i].type = reg;
+		else
+			buttons[i].type = EV_KEY;
 
 		buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
 
-		reg = of_get_property(pp, "debounce-interval", &len);
-		buttons[i].debounce_interval = reg ? be32_to_cpup(reg) : 5;
+		if (of_property_read_u32(pp, "debounce-interval", &reg) == 0)
+			buttons[i].debounce_interval = reg;
+		else
+			buttons[i].debounce_interval = 5;
 
 		i++;
 	}
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index d92c15c39e6..ccebd2d0915 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -510,7 +510,7 @@ static int __devinit imx_keypad_probe(struct platform_device *pdev)
 	/* Ensure that the keypad will stay dormant until opened */
 	imx_keypad_inhibit(keypad);
 
-	error = request_irq(irq, imx_keypad_irq_handler, IRQF_DISABLED,
+	error = request_irq(irq, imx_keypad_irq_handler, 0,
 			    pdev->name, keypad);
 	if (error) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
@@ -567,10 +567,54 @@ static int __devexit imx_keypad_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int imx_kbd_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct imx_keypad *kbd = platform_get_drvdata(pdev);
+	struct input_dev *input_dev = kbd->input_dev;
+
+	/* imx kbd can wake up system even clock is disabled */
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		clk_disable(kbd->clk);
+
+	mutex_unlock(&input_dev->mutex);
+
+	if (device_may_wakeup(&pdev->dev))
+		enable_irq_wake(kbd->irq);
+
+	return 0;
+}
+
+static int imx_kbd_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct imx_keypad *kbd = platform_get_drvdata(pdev);
+	struct input_dev *input_dev = kbd->input_dev;
+
+	if (device_may_wakeup(&pdev->dev))
+		disable_irq_wake(kbd->irq);
+
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		clk_enable(kbd->clk);
+
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
+
 static struct platform_driver imx_keypad_driver = {
 	.driver		= {
 		.name	= "imx-keypad",
 		.owner	= THIS_MODULE,
+		.pm	= &imx_kbd_pm_ops,
 	},
 	.probe		= imx_keypad_probe,
 	.remove		= __devexit_p(imx_keypad_remove),
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 2cd3e1d56ea..0aa6740e60d 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -129,7 +129,7 @@ static int __devinit jornada720_kbd_probe(struct platform_device *pdev)
 
 	err = request_irq(IRQ_GPIO0,
 			  jornada720_kbd_interrupt,
-			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+			  IRQF_TRIGGER_FALLING,
 			  "jornadakbd", pdev);
 	if (err) {
 		printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n");
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index 756348a7f93..82d1dc8badd 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -788,7 +788,7 @@ static int __devexit lm8323_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 /*
  * We don't need to explicitly suspend the chip, as it already switches off
  * when there's no activity.
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index b02e4268e18..e2ae657717e 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -343,7 +343,6 @@ static int __devinit init_matrix_gpio(struct platform_device *pdev,
 		for (i = 0; i < pdata->num_row_gpios; i++) {
 			err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
 					matrix_keypad_interrupt,
-					IRQF_DISABLED |
 					IRQF_TRIGGER_RISING |
 					IRQF_TRIGGER_FALLING,
 					"matrix-keypad", keypad);
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index 4b0ec35259a..eca6ae63de1 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -535,7 +535,7 @@ static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
 		input_dev->evbit[0] |= BIT_MASK(EV_REL);
 	}
 
-	error = request_irq(irq, pxa27x_keypad_irq_handler, IRQF_DISABLED,
+	error = request_irq(irq, pxa27x_keypad_irq_handler, 0,
 			    pdev->name, keypad);
 	if (error) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
index b7123a44b6e..35451bf780c 100644
--- a/drivers/input/keyboard/pxa930_rotary.c
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -148,7 +148,7 @@ static int __devinit pxa930_rotary_probe(struct platform_device *pdev)
 	r->input_dev = input_dev;
 	input_set_drvdata(input_dev, r);
 
-	err = request_irq(irq, rotary_irq, IRQF_DISABLED,
+	err = request_irq(irq, rotary_irq, 0,
 			"enhanced rotary", r);
 	if (err) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index 99122f59e98..f60c9e82f20 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -90,7 +90,7 @@ struct tc_keypad {
 	bool keypad_stopped;
 };
 
-static int __devinit tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
+static int tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
 {
 	int ret;
 	struct tc3589x *tc3589x = keypad->tc3589x;
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index a5a77915c65..cf3228b0ab9 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -55,6 +55,7 @@
 
 #define KBC_ROW_CFG0_0	0x8
 #define KBC_COL_CFG0_0	0x18
+#define KBC_TO_CNT_0	0x24
 #define KBC_INIT_DLY_0	0x28
 #define KBC_RPT_DLY_0	0x2c
 #define KBC_KP_ENT0_0	0x30
@@ -70,6 +71,7 @@ struct tegra_kbc {
 	spinlock_t lock;
 	unsigned int repoll_dly;
 	unsigned long cp_dly_jiffies;
+	unsigned int cp_to_wkup_dly;
 	bool use_fn_map;
 	bool use_ghost_filter;
 	const struct tegra_kbc_platform_data *pdata;
@@ -258,12 +260,10 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 	u32 val = 0;
 	unsigned int i;
 	unsigned int num_down = 0;
-	unsigned long flags;
 	bool fn_keypress = false;
 	bool key_in_same_row = false;
 	bool key_in_same_col = false;
 
-	spin_lock_irqsave(&kbc->lock, flags);
 	for (i = 0; i < KBC_MAX_KPENT; i++) {
 		if ((i % 4) == 0)
 			val = readl(kbc->mmio + KBC_KP_ENT0_0 + i);
@@ -292,7 +292,7 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 	 * any 2 of the 3 keys share a row, and any 2 of them share a column.
 	 * If so ignore the key presses for this iteration.
 	 */
-	if ((kbc->use_ghost_filter) && (num_down >= 3)) {
+	if (kbc->use_ghost_filter && num_down >= 3) {
 		for (i = 0; i < num_down; i++) {
 			unsigned int j;
 			u8 curr_col = scancodes[i] & 0x07;
@@ -325,8 +325,6 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 		}
 	}
 
-	spin_unlock_irqrestore(&kbc->lock, flags);
-
 	/* Ignore the key presses for this iteration? */
 	if (key_in_same_col && key_in_same_row)
 		return;
@@ -341,6 +339,18 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 	kbc->num_pressed_keys = num_down;
 }
 
+static void tegra_kbc_set_fifo_interrupt(struct tegra_kbc *kbc, bool enable)
+{
+	u32 val;
+
+	val = readl(kbc->mmio + KBC_CONTROL_0);
+	if (enable)
+		val |= KBC_CONTROL_FIFO_CNT_INT_EN;
+	else
+		val &= ~KBC_CONTROL_FIFO_CNT_INT_EN;
+	writel(val, kbc->mmio + KBC_CONTROL_0);
+}
+
 static void tegra_kbc_keypress_timer(unsigned long data)
 {
 	struct tegra_kbc *kbc = (struct tegra_kbc *)data;
@@ -348,6 +358,8 @@ static void tegra_kbc_keypress_timer(unsigned long data)
 	u32 val;
 	unsigned int i;
 
+	spin_lock_irqsave(&kbc->lock, flags);
+
 	val = (readl(kbc->mmio + KBC_INT_0) >> 4) & 0xf;
 	if (val) {
 		unsigned long dly;
@@ -369,26 +381,19 @@ static void tegra_kbc_keypress_timer(unsigned long data)
 		kbc->num_pressed_keys = 0;
 
 		/* All keys are released so enable the keypress interrupt */
-		spin_lock_irqsave(&kbc->lock, flags);
-		val = readl(kbc->mmio + KBC_CONTROL_0);
-		val |= KBC_CONTROL_FIFO_CNT_INT_EN;
-		writel(val, kbc->mmio + KBC_CONTROL_0);
-		spin_unlock_irqrestore(&kbc->lock, flags);
+		tegra_kbc_set_fifo_interrupt(kbc, true);
 	}
+
+	spin_unlock_irqrestore(&kbc->lock, flags);
 }
 
 static irqreturn_t tegra_kbc_isr(int irq, void *args)
 {
 	struct tegra_kbc *kbc = args;
-	u32 val, ctl;
+	unsigned long flags;
+	u32 val;
 
-	/*
-	 * Until all keys are released, defer further processing to
-	 * the polling loop in tegra_kbc_keypress_timer
-	 */
-	ctl = readl(kbc->mmio + KBC_CONTROL_0);
-	ctl &= ~KBC_CONTROL_FIFO_CNT_INT_EN;
-	writel(ctl, kbc->mmio + KBC_CONTROL_0);
+	spin_lock_irqsave(&kbc->lock, flags);
 
 	/*
 	 * Quickly bail out & reenable interrupts if the fifo threshold
@@ -399,15 +404,15 @@ static irqreturn_t tegra_kbc_isr(int irq, void *args)
 
 	if (val & KBC_INT_FIFO_CNT_INT_STATUS) {
 		/*
-		 * Schedule timer to run when hardware is in continuous
-		 * polling mode.
+		 * Until all keys are released, defer further processing to
+		 * the polling loop in tegra_kbc_keypress_timer.
 		 */
+		tegra_kbc_set_fifo_interrupt(kbc, false);
 		mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
-	} else {
-		ctl |= KBC_CONTROL_FIFO_CNT_INT_EN;
-		writel(ctl, kbc->mmio + KBC_CONTROL_0);
 	}
 
+	spin_unlock_irqrestore(&kbc->lock, flags);
+
 	return IRQ_HANDLED;
 }
 
@@ -455,7 +460,6 @@ static void tegra_kbc_config_pins(struct tegra_kbc *kbc)
 static int tegra_kbc_start(struct tegra_kbc *kbc)
 {
 	const struct tegra_kbc_platform_data *pdata = kbc->pdata;
-	unsigned long flags;
 	unsigned int debounce_cnt;
 	u32 val = 0;
 
@@ -493,7 +497,6 @@ static int tegra_kbc_start(struct tegra_kbc *kbc)
 	 * Atomically clear out any remaining entries in the key FIFO
 	 * and enable keyboard interrupts.
 	 */
-	spin_lock_irqsave(&kbc->lock, flags);
 	while (1) {
 		val = readl(kbc->mmio + KBC_INT_0);
 		val >>= 4;
@@ -504,7 +507,6 @@ static int tegra_kbc_start(struct tegra_kbc *kbc)
 		val = readl(kbc->mmio + KBC_KP_ENT1_0);
 	}
 	writel(0x7, kbc->mmio + KBC_INT_0);
-	spin_unlock_irqrestore(&kbc->lock, flags);
 
 	enable_irq(kbc->irq);
 
@@ -734,18 +736,30 @@ static int tegra_kbc_suspend(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
 
+	mutex_lock(&kbc->idev->mutex);
 	if (device_may_wakeup(&pdev->dev)) {
-		tegra_kbc_setup_wakekeys(kbc, true);
-		enable_irq_wake(kbc->irq);
+		disable_irq(kbc->irq);
+		del_timer_sync(&kbc->timer);
+		tegra_kbc_set_fifo_interrupt(kbc, false);
+
 		/* Forcefully clear the interrupt status */
 		writel(0x7, kbc->mmio + KBC_INT_0);
+		/*
+		 * Store the previous resident time of continuous polling mode.
+		 * Force the keyboard into interrupt mode.
+		 */
+		kbc->cp_to_wkup_dly = readl(kbc->mmio + KBC_TO_CNT_0);
+		writel(0, kbc->mmio + KBC_TO_CNT_0);
+
+		tegra_kbc_setup_wakekeys(kbc, true);
 		msleep(30);
+
+		enable_irq_wake(kbc->irq);
 	} else {
-		mutex_lock(&kbc->idev->mutex);
 		if (kbc->idev->users)
 			tegra_kbc_stop(kbc);
-		mutex_unlock(&kbc->idev->mutex);
 	}
+	mutex_unlock(&kbc->idev->mutex);
 
 	return 0;
 }
@@ -756,15 +770,22 @@ static int tegra_kbc_resume(struct device *dev)
 	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
 	int err = 0;
 
+	mutex_lock(&kbc->idev->mutex);
 	if (device_may_wakeup(&pdev->dev)) {
 		disable_irq_wake(kbc->irq);
 		tegra_kbc_setup_wakekeys(kbc, false);
+
+		/* Restore the resident time of continuous polling mode. */
+		writel(kbc->cp_to_wkup_dly, kbc->mmio + KBC_TO_CNT_0);
+
+		tegra_kbc_set_fifo_interrupt(kbc, true);
+
+		enable_irq(kbc->irq);
 	} else {
-		mutex_lock(&kbc->idev->mutex);
 		if (kbc->idev->users)
 			err = tegra_kbc_start(kbc);
-		mutex_unlock(&kbc->idev->mutex);
 	}
+	mutex_unlock(&kbc->idev->mutex);
 
 	return err;
 }
diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c
index ee2bf6bcf29..318586dadac 100644
--- a/drivers/input/keyboard/w90p910_keypad.c
+++ b/drivers/input/keyboard/w90p910_keypad.c
@@ -203,7 +203,7 @@ static int __devinit w90p910_keypad_probe(struct platform_device *pdev)
 				   input_dev->keycode, input_dev->keybit);
 
 	error = request_irq(keypad->irq, w90p910_keypad_irq_handler,
-			    IRQF_DISABLED, pdev->name, keypad);
+			    0, pdev->name, keypad);
 	if (error) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
 		goto failed_put_clk;
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index c9104bb4db0..a1aa35a053b 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -62,6 +62,17 @@ config INPUT_AD714X_SPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad714x-spi.
 
+config INPUT_BMA150
+	tristate "BMA150/SMB380 acceleration sensor support"
+	depends on I2C
+	select INPUT_POLLDEV
+	help
+	  Say Y here if you have Bosch Sensortec's BMA150 or SMB380
+	  acceleration sensor hooked to an I2C bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called bma150.
+
 config INPUT_PCSPKR
 	tristate "PC Speaker support"
 	depends on PCSPKR_PLATFORM
@@ -74,6 +85,29 @@ config INPUT_PCSPKR
 	  To compile this driver as a module, choose M here: the
 	  module will be called pcspkr.
 
+config INPUT_PM8XXX_VIBRATOR
+	tristate "Qualcomm PM8XXX vibrator support"
+	depends on MFD_PM8XXX
+	select INPUT_FF_MEMLESS
+	help
+	  This option enables device driver support for the vibrator
+	  on Qualcomm PM8xxx chip. This driver supports ff-memless interface
+	  from input framework.
+
+	  To compile this driver as module, choose M here: the
+	  module will be called pm8xxx-vibrator.
+
+config INPUT_PMIC8XXX_PWRKEY
+	tristate "PMIC8XXX power key support"
+	depends on MFD_PM8XXX
+	help
+	  Say Y here if you want support for the PMIC8XXX power key.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pmic8xxx-pwrkey.
+
 config INPUT_SPARCSPKR
 	tristate "SPARC Speaker support"
 	depends on PCI && SPARC64
@@ -379,17 +413,6 @@ config INPUT_PWM_BEEPER
 	  To compile this driver as a module, choose M here: the module will be
 	  called pwm-beeper.
 
-config INPUT_PMIC8XXX_PWRKEY
-	tristate "PMIC8XXX power key support"
-	depends on MFD_PM8XXX
-	help
-	  Say Y here if you want support for the PMIC8XXX power key.
-
-	  If unsure, say N.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called pmic8xxx-pwrkey.
-
 config INPUT_GPIO_ROTARY_ENCODER
 	tristate "Rotary encoders connected to GPIO pins"
 	depends on GPIOLIB && GENERIC_GPIO
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 299ad5edba8..53a8d0faad5 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE)		+= ati_remote.o
 obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o
 obj-$(CONFIG_INPUT_ATLAS_BTNS)		+= atlas_btns.o
 obj-$(CONFIG_INPUT_BFIN_ROTARY)		+= bfin_rotary.o
+obj-$(CONFIG_INPUT_BMA150)		+= bma150.o
 obj-$(CONFIG_INPUT_CM109)		+= cm109.o
 obj-$(CONFIG_INPUT_CMA3000)		+= cma3000_d0x.o
 obj-$(CONFIG_INPUT_CMA3000_I2C)		+= cma3000_d0x_i2c.o
@@ -34,9 +35,10 @@ obj-$(CONFIG_INPUT_PCAP)		+= pcap_keys.o
 obj-$(CONFIG_INPUT_PCF50633_PMU)	+= pcf50633-input.o
 obj-$(CONFIG_INPUT_PCF8574)		+= pcf8574_keypad.o
 obj-$(CONFIG_INPUT_PCSPKR)		+= pcspkr.o
+obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR)	+= pm8xxx-vibrator.o
+obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY)	+= pmic8xxx-pwrkey.o
 obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
 obj-$(CONFIG_INPUT_PWM_BEEPER)		+= pwm-beeper.o
-obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY)	+= pmic8xxx-pwrkey.o
 obj-$(CONFIG_INPUT_RB532_BUTTON)	+= rb532_button.o
 obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER)	+= rotary_encoder.o
 obj-$(CONFIG_INPUT_SGI_BTNS)		+= sgi_btns.o
diff --git a/drivers/input/misc/ad714x-i2c.c b/drivers/input/misc/ad714x-i2c.c
index 025417d74ca..56810fb4ead 100644
--- a/drivers/input/misc/ad714x-i2c.c
+++ b/drivers/input/misc/ad714x-i2c.c
@@ -116,13 +116,13 @@ static struct i2c_driver ad714x_i2c_driver = {
 	.id_table = ad714x_id,
 };
 
-static __init int ad714x_i2c_init(void)
+static int __init ad714x_i2c_init(void)
 {
 	return i2c_add_driver(&ad714x_i2c_driver);
 }
 module_init(ad714x_i2c_init);
 
-static __exit void ad714x_i2c_exit(void)
+static void __exit ad714x_i2c_exit(void)
 {
 	i2c_del_driver(&ad714x_i2c_driver);
 }
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
new file mode 100644
index 00000000000..8f55b54352b
--- /dev/null
+++ b/drivers/input/misc/bma150.c
@@ -0,0 +1,691 @@
+/*
+ * Copyright (c) 2011 Bosch Sensortec GmbH
+ * Copyright (c) 2011 Unixphere
+ *
+ * This driver adds support for Bosch Sensortec's digital acceleration
+ * sensors BMA150 and SMB380.
+ * The SMB380 is fully compatible with BMA150 and only differs in packaging.
+ *
+ * The datasheet for the BMA150 chip can be found here:
+ * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/bma150.h>
+
+#define ABSMAX_ACC_VAL		0x01FF
+#define ABSMIN_ACC_VAL		-(ABSMAX_ACC_VAL)
+
+/* Each axis is represented by a 2-byte data word */
+#define BMA150_XYZ_DATA_SIZE	6
+
+/* Input poll interval in milliseconds */
+#define BMA150_POLL_INTERVAL	10
+#define BMA150_POLL_MAX		200
+#define BMA150_POLL_MIN		0
+
+#define BMA150_BW_25HZ		0
+#define BMA150_BW_50HZ		1
+#define BMA150_BW_100HZ		2
+#define BMA150_BW_190HZ		3
+#define BMA150_BW_375HZ		4
+#define BMA150_BW_750HZ		5
+#define BMA150_BW_1500HZ	6
+
+#define BMA150_RANGE_2G		0
+#define BMA150_RANGE_4G		1
+#define BMA150_RANGE_8G		2
+
+#define BMA150_MODE_NORMAL	0
+#define BMA150_MODE_SLEEP	2
+#define BMA150_MODE_WAKE_UP	3
+
+/* Data register addresses */
+#define BMA150_DATA_0_REG	0x00
+#define BMA150_DATA_1_REG	0x01
+#define BMA150_DATA_2_REG	0x02
+
+/* Control register addresses */
+#define BMA150_CTRL_0_REG	0x0A
+#define BMA150_CTRL_1_REG	0x0B
+#define BMA150_CTRL_2_REG	0x14
+#define BMA150_CTRL_3_REG	0x15
+
+/* Configuration/Setting register addresses */
+#define BMA150_CFG_0_REG	0x0C
+#define BMA150_CFG_1_REG	0x0D
+#define BMA150_CFG_2_REG	0x0E
+#define BMA150_CFG_3_REG	0x0F
+#define BMA150_CFG_4_REG	0x10
+#define BMA150_CFG_5_REG	0x11
+
+#define BMA150_CHIP_ID		2
+#define BMA150_CHIP_ID_REG	BMA150_DATA_0_REG
+
+#define BMA150_ACC_X_LSB_REG	BMA150_DATA_2_REG
+
+#define BMA150_SLEEP_POS	0
+#define BMA150_SLEEP_MSK	0x01
+#define BMA150_SLEEP_REG	BMA150_CTRL_0_REG
+
+#define BMA150_BANDWIDTH_POS	0
+#define BMA150_BANDWIDTH_MSK	0x07
+#define BMA150_BANDWIDTH_REG	BMA150_CTRL_2_REG
+
+#define BMA150_RANGE_POS	3
+#define BMA150_RANGE_MSK	0x18
+#define BMA150_RANGE_REG	BMA150_CTRL_2_REG
+
+#define BMA150_WAKE_UP_POS	0
+#define BMA150_WAKE_UP_MSK	0x01
+#define BMA150_WAKE_UP_REG	BMA150_CTRL_3_REG
+
+#define BMA150_SW_RES_POS	1
+#define BMA150_SW_RES_MSK	0x02
+#define BMA150_SW_RES_REG	BMA150_CTRL_0_REG
+
+/* Any-motion interrupt register fields */
+#define BMA150_ANY_MOTION_EN_POS	6
+#define BMA150_ANY_MOTION_EN_MSK	0x40
+#define BMA150_ANY_MOTION_EN_REG	BMA150_CTRL_1_REG
+
+#define BMA150_ANY_MOTION_DUR_POS	6
+#define BMA150_ANY_MOTION_DUR_MSK	0xC0
+#define BMA150_ANY_MOTION_DUR_REG	BMA150_CFG_5_REG
+
+#define BMA150_ANY_MOTION_THRES_REG	BMA150_CFG_4_REG
+
+/* Advanced interrupt register fields */
+#define BMA150_ADV_INT_EN_POS		6
+#define BMA150_ADV_INT_EN_MSK		0x40
+#define BMA150_ADV_INT_EN_REG		BMA150_CTRL_3_REG
+
+/* High-G interrupt register fields */
+#define BMA150_HIGH_G_EN_POS		1
+#define BMA150_HIGH_G_EN_MSK		0x02
+#define BMA150_HIGH_G_EN_REG		BMA150_CTRL_1_REG
+
+#define BMA150_HIGH_G_HYST_POS		3
+#define BMA150_HIGH_G_HYST_MSK		0x38
+#define BMA150_HIGH_G_HYST_REG		BMA150_CFG_5_REG
+
+#define BMA150_HIGH_G_DUR_REG		BMA150_CFG_3_REG
+#define BMA150_HIGH_G_THRES_REG		BMA150_CFG_2_REG
+
+/* Low-G interrupt register fields */
+#define BMA150_LOW_G_EN_POS		0
+#define BMA150_LOW_G_EN_MSK		0x01
+#define BMA150_LOW_G_EN_REG		BMA150_CTRL_1_REG
+
+#define BMA150_LOW_G_HYST_POS		0
+#define BMA150_LOW_G_HYST_MSK		0x07
+#define BMA150_LOW_G_HYST_REG		BMA150_CFG_5_REG
+
+#define BMA150_LOW_G_DUR_REG		BMA150_CFG_1_REG
+#define BMA150_LOW_G_THRES_REG		BMA150_CFG_0_REG
+
+struct bma150_data {
+	struct i2c_client *client;
+	struct input_polled_dev *input_polled;
+	struct input_dev *input;
+	u8 mode;
+};
+
+/*
+ * The settings for the given range, bandwidth and interrupt features
+ * are stated and verified by Bosch Sensortec where they are configured
+ * to provide a generic sensitivity performance.
+ */
+static struct bma150_cfg default_cfg __devinitdata = {
+	.any_motion_int = 1,
+	.hg_int = 1,
+	.lg_int = 1,
+	.any_motion_dur = 0,
+	.any_motion_thres = 0,
+	.hg_hyst = 0,
+	.hg_dur = 150,
+	.hg_thres = 160,
+	.lg_hyst = 0,
+	.lg_dur = 150,
+	.lg_thres = 20,
+	.range = BMA150_RANGE_2G,
+	.bandwidth = BMA150_BW_50HZ
+};
+
+static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)
+{
+	s32 ret;
+
+	/* As per specification, disable irq in between register writes */
+	if (client->irq)
+		disable_irq_nosync(client->irq);
+
+	ret = i2c_smbus_write_byte_data(client, reg, val);
+
+	if (client->irq)
+		enable_irq(client->irq);
+
+	return ret;
+}
+
+static int bma150_set_reg_bits(struct i2c_client *client,
+					int val, int shift, u8 mask, u8 reg)
+{
+	int data;
+
+	data = i2c_smbus_read_byte_data(client, reg);
+	if (data < 0)
+		return data;
+
+	data = (data & ~mask) | ((val << shift) & mask);
+	return bma150_write_byte(client, reg, data);
+}
+
+static int bma150_set_mode(struct bma150_data *bma150, u8 mode)
+{
+	int error;
+
+	error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,
+				BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);
+	if (error)
+		return error;
+
+	error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,
+				BMA150_SLEEP_MSK, BMA150_SLEEP_REG);
+	if (error)
+		return error;
+
+	if (mode == BMA150_MODE_NORMAL)
+		msleep(2);
+
+	bma150->mode = mode;
+	return 0;
+}
+
+static int __devinit bma150_soft_reset(struct bma150_data *bma150)
+{
+	int error;
+
+	error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,
+				BMA150_SW_RES_MSK, BMA150_SW_RES_REG);
+	if (error)
+		return error;
+
+	msleep(2);
+	return 0;
+}
+
+static int __devinit bma150_set_range(struct bma150_data *bma150, u8 range)
+{
+	return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,
+				BMA150_RANGE_MSK, BMA150_RANGE_REG);
+}
+
+static int __devinit bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)
+{
+	return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,
+				BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);
+}
+
+static int __devinit bma150_set_low_g_interrupt(struct bma150_data *bma150,
+					u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+	int error;
+
+	error = bma150_set_reg_bits(bma150->client, hyst,
+				BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,
+				BMA150_LOW_G_HYST_REG);
+	if (error)
+		return error;
+
+	error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);
+	if (error)
+		return error;
+
+	error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);
+	if (error)
+		return error;
+
+	return bma150_set_reg_bits(bma150->client, !!enable,
+				BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,
+				BMA150_LOW_G_EN_REG);
+}
+
+static int __devinit bma150_set_high_g_interrupt(struct bma150_data *bma150,
+					u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+	int error;
+
+	error = bma150_set_reg_bits(bma150->client, hyst,
+				BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,
+				BMA150_HIGH_G_HYST_REG);
+	if (error)
+		return error;
+
+	error = bma150_write_byte(bma150->client,
+				BMA150_HIGH_G_DUR_REG, dur);
+	if (error)
+		return error;
+
+	error = bma150_write_byte(bma150->client,
+				BMA150_HIGH_G_THRES_REG, thres);
+	if (error)
+		return error;
+
+	return bma150_set_reg_bits(bma150->client, !!enable,
+				BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,
+				BMA150_HIGH_G_EN_REG);
+}
+
+
+static int __devinit bma150_set_any_motion_interrupt(struct bma150_data *bma150,
+						u8 enable, u8 dur, u8 thres)
+{
+	int error;
+
+	error = bma150_set_reg_bits(bma150->client, dur,
+				BMA150_ANY_MOTION_DUR_POS,
+				BMA150_ANY_MOTION_DUR_MSK,
+				BMA150_ANY_MOTION_DUR_REG);
+	if (error)
+		return error;
+
+	error = bma150_write_byte(bma150->client,
+				BMA150_ANY_MOTION_THRES_REG, thres);
+	if (error)
+		return error;
+
+	error = bma150_set_reg_bits(bma150->client, !!enable,
+				BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,
+				BMA150_ADV_INT_EN_REG);
+	if (error)
+		return error;
+
+	return bma150_set_reg_bits(bma150->client, !!enable,
+				BMA150_ANY_MOTION_EN_POS,
+				BMA150_ANY_MOTION_EN_MSK,
+				BMA150_ANY_MOTION_EN_REG);
+}
+
+static void bma150_report_xyz(struct bma150_data *bma150)
+{
+	u8 data[BMA150_XYZ_DATA_SIZE];
+	s16 x, y, z;
+	s32 ret;
+
+	ret = i2c_smbus_read_i2c_block_data(bma150->client,
+			BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);
+	if (ret != BMA150_XYZ_DATA_SIZE)
+		return;
+
+	x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);
+	y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
+	z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
+
+	/* sign extension */
+	x = (s16) (x << 6) >> 6;
+	y = (s16) (y << 6) >> 6;
+	z = (s16) (z << 6) >> 6;
+
+	input_report_abs(bma150->input, ABS_X, x);
+	input_report_abs(bma150->input, ABS_Y, y);
+	input_report_abs(bma150->input, ABS_Z, z);
+	input_sync(bma150->input);
+}
+
+static irqreturn_t bma150_irq_thread(int irq, void *dev)
+{
+	bma150_report_xyz(dev);
+
+	return IRQ_HANDLED;
+}
+
+static void bma150_poll(struct input_polled_dev *dev)
+{
+	bma150_report_xyz(dev->private);
+}
+
+static int bma150_open(struct bma150_data *bma150)
+{
+	int error;
+
+	error = pm_runtime_get_sync(&bma150->client->dev);
+	if (error && error != -ENOSYS)
+		return error;
+
+	/*
+	 * See if runtime PM woke up the device. If runtime PM
+	 * is disabled we need to do it ourselves.
+	 */
+	if (bma150->mode != BMA150_MODE_NORMAL) {
+		error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+		if (error)
+			return error;
+	}
+
+	return 0;
+}
+
+static void bma150_close(struct bma150_data *bma150)
+{
+	pm_runtime_put_sync(&bma150->client->dev);
+
+	if (bma150->mode != BMA150_MODE_SLEEP)
+		bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_irq_open(struct input_dev *input)
+{
+	struct bma150_data *bma150 = input_get_drvdata(input);
+
+	return bma150_open(bma150);
+}
+
+static void bma150_irq_close(struct input_dev *input)
+{
+	struct bma150_data *bma150 = input_get_drvdata(input);
+
+	bma150_close(bma150);
+}
+
+static void bma150_poll_open(struct input_polled_dev *ipoll_dev)
+{
+	struct bma150_data *bma150 = ipoll_dev->private;
+
+	bma150_open(bma150);
+}
+
+static void bma150_poll_close(struct input_polled_dev *ipoll_dev)
+{
+	struct bma150_data *bma150 = ipoll_dev->private;
+
+	bma150_close(bma150);
+}
+
+static int __devinit bma150_initialize(struct bma150_data *bma150,
+				       const struct bma150_cfg *cfg)
+{
+	int error;
+
+	error = bma150_soft_reset(bma150);
+	if (error)
+		return error;
+
+	error = bma150_set_bandwidth(bma150, cfg->bandwidth);
+	if (error)
+		return error;
+
+	error = bma150_set_range(bma150, cfg->range);
+	if (error)
+		return error;
+
+	if (bma150->client->irq) {
+		error = bma150_set_any_motion_interrupt(bma150,
+					cfg->any_motion_int,
+					cfg->any_motion_dur,
+					cfg->any_motion_thres);
+		if (error)
+			return error;
+
+		error = bma150_set_high_g_interrupt(bma150,
+					cfg->hg_int, cfg->hg_hyst,
+					cfg->hg_dur, cfg->hg_thres);
+		if (error)
+			return error;
+
+		error = bma150_set_low_g_interrupt(bma150,
+					cfg->lg_int, cfg->lg_hyst,
+					cfg->lg_dur, cfg->lg_thres);
+		if (error)
+			return error;
+	}
+
+	return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static void __devinit bma150_init_input_device(struct bma150_data *bma150,
+						struct input_dev *idev)
+{
+	idev->name = BMA150_DRIVER;
+	idev->phys = BMA150_DRIVER "/input0";
+	idev->id.bustype = BUS_I2C;
+	idev->dev.parent = &bma150->client->dev;
+
+	idev->evbit[0] = BIT_MASK(EV_ABS);
+	input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+	input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+	input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+}
+
+static int __devinit bma150_register_input_device(struct bma150_data *bma150)
+{
+	struct input_dev *idev;
+	int error;
+
+	idev = input_allocate_device();
+	if (!idev)
+		return -ENOMEM;
+
+	bma150_init_input_device(bma150, idev);
+
+	idev->open = bma150_irq_open;
+	idev->close = bma150_irq_close;
+	input_set_drvdata(idev, bma150);
+
+	error = input_register_device(idev);
+	if (error) {
+		input_free_device(idev);
+		return error;
+	}
+
+	bma150->input = idev;
+	return 0;
+}
+
+static int __devinit bma150_register_polled_device(struct bma150_data *bma150)
+{
+	struct input_polled_dev *ipoll_dev;
+	int error;
+
+	ipoll_dev = input_allocate_polled_device();
+	if (!ipoll_dev)
+		return -ENOMEM;
+
+	ipoll_dev->private = bma150;
+	ipoll_dev->open = bma150_poll_open;
+	ipoll_dev->close = bma150_poll_close;
+	ipoll_dev->poll = bma150_poll;
+	ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;
+	ipoll_dev->poll_interval_min = BMA150_POLL_MIN;
+	ipoll_dev->poll_interval_max = BMA150_POLL_MAX;
+
+	bma150_init_input_device(bma150, ipoll_dev->input);
+
+	error = input_register_polled_device(ipoll_dev);
+	if (error) {
+		input_free_polled_device(ipoll_dev);
+		return error;
+	}
+
+	bma150->input_polled = ipoll_dev;
+	bma150->input = ipoll_dev->input;
+
+	return 0;
+}
+
+static int __devinit bma150_probe(struct i2c_client *client,
+				  const struct i2c_device_id *id)
+{
+	const struct bma150_platform_data *pdata = client->dev.platform_data;
+	const struct bma150_cfg *cfg;
+	struct bma150_data *bma150;
+	int chip_id;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "i2c_check_functionality error\n");
+		return -EIO;
+	}
+
+	chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
+	if (chip_id != BMA150_CHIP_ID) {
+		dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
+		return -EINVAL;
+	}
+
+	bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);
+	if (!bma150)
+		return -ENOMEM;
+
+	bma150->client = client;
+
+	if (pdata) {
+		if (pdata->irq_gpio_cfg) {
+			error = pdata->irq_gpio_cfg();
+			if (error) {
+				dev_err(&client->dev,
+					"IRQ GPIO conf. error %d, error %d\n",
+					client->irq, error);
+				goto err_free_mem;
+			}
+		}
+		cfg = &pdata->cfg;
+	} else {
+		cfg = &default_cfg;
+	}
+
+	error = bma150_initialize(bma150, cfg);
+	if (error)
+		goto err_free_mem;
+
+	if (client->irq > 0) {
+		error = bma150_register_input_device(bma150);
+		if (error)
+			goto err_free_mem;
+
+		error = request_threaded_irq(client->irq,
+					NULL, bma150_irq_thread,
+					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+					BMA150_DRIVER, bma150);
+		if (error) {
+			dev_err(&client->dev,
+				"irq request failed %d, error %d\n",
+				client->irq, error);
+			input_unregister_device(bma150->input);
+			goto err_free_mem;
+		}
+	} else {
+		error = bma150_register_polled_device(bma150);
+		if (error)
+			goto err_free_mem;
+	}
+
+	i2c_set_clientdata(client, bma150);
+
+	pm_runtime_enable(&client->dev);
+
+	return 0;
+
+err_free_mem:
+	kfree(bma150);
+	return error;
+}
+
+static int __devexit bma150_remove(struct i2c_client *client)
+{
+	struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+	pm_runtime_disable(&client->dev);
+
+	if (client->irq > 0) {
+		free_irq(client->irq, bma150);
+		input_unregister_device(bma150->input);
+	} else {
+		input_unregister_polled_device(bma150->input_polled);
+		input_free_polled_device(bma150->input_polled);
+	}
+
+	kfree(bma150);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int bma150_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+	return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+	return bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+}
+#endif
+
+static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);
+
+static const struct i2c_device_id bma150_id[] = {
+	{ "bma150", 0 },
+	{ "smb380", 0 },
+	{ "bma023", 0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, bma150_id);
+
+static struct i2c_driver bma150_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= BMA150_DRIVER,
+		.pm	= &bma150_pm,
+	},
+	.class		= I2C_CLASS_HWMON,
+	.id_table	= bma150_id,
+	.probe		= bma150_probe,
+	.remove		= __devexit_p(bma150_remove),
+};
+
+static int __init BMA150_init(void)
+{
+	return i2c_add_driver(&bma150_driver);
+}
+
+static void __exit BMA150_exit(void)
+{
+	i2c_del_driver(&bma150_driver);
+}
+
+MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");
+MODULE_DESCRIPTION("BMA150 driver");
+MODULE_LICENSE("GPL");
+
+module_init(BMA150_init);
+module_exit(BMA150_exit);
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index 1f38302a595..302ab46ce75 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -111,7 +111,7 @@ static int __devinit ixp4xx_spkr_probe(struct platform_device *dev)
 	input_dev->event = ixp4xx_spkr_event;
 
 	err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
-			  IRQF_DISABLED | IRQF_NO_SUSPEND, "ixp4xx-beeper",
+			  IRQF_NO_SUSPEND, "ixp4xx-beeper",
 			  (void *) dev->id);
 	if (err)
 		goto err_free_device;
diff --git a/drivers/input/misc/mma8450.c b/drivers/input/misc/mma8450.c
index 0794778295f..4d60080bb5d 100644
--- a/drivers/input/misc/mma8450.c
+++ b/drivers/input/misc/mma8450.c
@@ -88,13 +88,13 @@ static int mma8450_write(struct mma8450 *m, unsigned off, u8 v)
 	return 0;
 }
 
-static int mma8450_read_xyz(struct mma8450 *m, int *x, int *y, int *z)
+static int mma8450_read_block(struct mma8450 *m, unsigned off,
+			      u8 *buf, size_t size)
 {
 	struct i2c_client *c = m->client;
-	u8 buff[6];
 	int err;
 
-	err = i2c_smbus_read_i2c_block_data(c, MMA8450_OUT_X_LSB, 6, buff);
+	err = i2c_smbus_read_i2c_block_data(c, off, size, buf);
 	if (err < 0) {
 		dev_err(&c->dev,
 			"failed to read block data at 0x%02x, error %d\n",
@@ -102,10 +102,6 @@ static int mma8450_read_xyz(struct mma8450 *m, int *x, int *y, int *z)
 		return err;
 	}
 
-	*x = ((buff[1] << 4) & 0xff0) | (buff[0] & 0xf);
-	*y = ((buff[3] << 4) & 0xff0) | (buff[2] & 0xf);
-	*z = ((buff[5] << 4) & 0xff0) | (buff[4] & 0xf);
-
 	return 0;
 }
 
@@ -114,7 +110,7 @@ static void mma8450_poll(struct input_polled_dev *dev)
 	struct mma8450 *m = dev->private;
 	int x, y, z;
 	int ret;
-	int err;
+	u8 buf[6];
 
 	ret = mma8450_read(m, MMA8450_STATUS);
 	if (ret < 0)
@@ -123,10 +119,14 @@ static void mma8450_poll(struct input_polled_dev *dev)
 	if (!(ret & MMA8450_STATUS_ZXYDR))
 		return;
 
-	err = mma8450_read_xyz(m, &x, &y, &z);
-	if (err)
+	ret = mma8450_read_block(m, MMA8450_OUT_X_LSB, buf, sizeof(buf));
+	if (ret < 0)
 		return;
 
+	x = ((buf[1] << 4) & 0xff0) | (buf[0] & 0xf);
+	y = ((buf[3] << 4) & 0xff0) | (buf[2] & 0xf);
+	z = ((buf[5] << 4) & 0xff0) | (buf[4] & 0xf);
+
 	input_report_abs(dev->input, ABS_X, x);
 	input_report_abs(dev->input, ABS_Y, y);
 	input_report_abs(dev->input, ABS_Z, z);
diff --git a/drivers/input/misc/pm8xxx-vibrator.c b/drivers/input/misc/pm8xxx-vibrator.c
new file mode 100644
index 00000000000..43192930824
--- /dev/null
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -0,0 +1,296 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/mfd/pm8xxx/core.h>
+
+#define VIB_DRV			0x4A
+
+#define VIB_DRV_SEL_MASK	0xf8
+#define VIB_DRV_SEL_SHIFT	0x03
+#define VIB_DRV_EN_MANUAL_MASK	0xfc
+
+#define VIB_MAX_LEVEL_mV	(3100)
+#define VIB_MIN_LEVEL_mV	(1200)
+#define VIB_MAX_LEVELS		(VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV)
+
+#define MAX_FF_SPEED		0xff
+
+/**
+ * struct pm8xxx_vib - structure to hold vibrator data
+ * @vib_input_dev: input device supporting force feedback
+ * @work: work structure to set the vibration parameters
+ * @dev: device supporting force feedback
+ * @speed: speed of vibration set from userland
+ * @active: state of vibrator
+ * @level: level of vibration to set in the chip
+ * @reg_vib_drv: VIB_DRV register value
+ */
+struct pm8xxx_vib {
+	struct input_dev *vib_input_dev;
+	struct work_struct work;
+	struct device *dev;
+	int speed;
+	int level;
+	bool active;
+	u8  reg_vib_drv;
+};
+
+/**
+ * pm8xxx_vib_read_u8 - helper to read a byte from pmic chip
+ * @vib: pointer to vibrator structure
+ * @data: placeholder for data to be read
+ * @reg: register address
+ */
+static int pm8xxx_vib_read_u8(struct pm8xxx_vib *vib,
+				 u8 *data, u16 reg)
+{
+	int rc;
+
+	rc = pm8xxx_readb(vib->dev->parent, reg, data);
+	if (rc < 0)
+		dev_warn(vib->dev, "Error reading pm8xxx reg 0x%x(0x%x)\n",
+				reg, rc);
+	return rc;
+}
+
+/**
+ * pm8xxx_vib_write_u8 - helper to write a byte to pmic chip
+ * @vib: pointer to vibrator structure
+ * @data: data to write
+ * @reg: register address
+ */
+static int pm8xxx_vib_write_u8(struct pm8xxx_vib *vib,
+				 u8 data, u16 reg)
+{
+	int rc;
+
+	rc = pm8xxx_writeb(vib->dev->parent, reg, data);
+	if (rc < 0)
+		dev_warn(vib->dev, "Error writing pm8xxx reg 0x%x(0x%x)\n",
+				reg, rc);
+	return rc;
+}
+
+/**
+ * pm8xxx_vib_set - handler to start/stop vibration
+ * @vib: pointer to vibrator structure
+ * @on: state to set
+ */
+static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
+{
+	int rc;
+	u8 val = vib->reg_vib_drv;
+
+	if (on)
+		val |= ((vib->level << VIB_DRV_SEL_SHIFT) & VIB_DRV_SEL_MASK);
+	else
+		val &= ~VIB_DRV_SEL_MASK;
+
+	rc = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
+	if (rc < 0)
+		return rc;
+
+	vib->reg_vib_drv = val;
+	return 0;
+}
+
+/**
+ * pm8xxx_work_handler - worker to set vibration level
+ * @work: pointer to work_struct
+ */
+static void pm8xxx_work_handler(struct work_struct *work)
+{
+	struct pm8xxx_vib *vib = container_of(work, struct pm8xxx_vib, work);
+	int rc;
+	u8 val;
+
+	rc = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
+	if (rc < 0)
+		return;
+
+	/*
+	 * pmic vibrator supports voltage ranges from 1.2 to 3.1V, so
+	 * scale the level to fit into these ranges.
+	 */
+	if (vib->speed) {
+		vib->active = true;
+		vib->level = ((VIB_MAX_LEVELS * vib->speed) / MAX_FF_SPEED) +
+						VIB_MIN_LEVEL_mV;
+		vib->level /= 100;
+	} else {
+		vib->active = false;
+		vib->level = VIB_MIN_LEVEL_mV / 100;
+	}
+
+	pm8xxx_vib_set(vib, vib->active);
+}
+
+/**
+ * pm8xxx_vib_close - callback of input close callback
+ * @dev: input device pointer
+ *
+ * Turns off the vibrator.
+ */
+static void pm8xxx_vib_close(struct input_dev *dev)
+{
+	struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+	cancel_work_sync(&vib->work);
+	if (vib->active)
+		pm8xxx_vib_set(vib, false);
+}
+
+/**
+ * pm8xxx_vib_play_effect - function to handle vib effects.
+ * @dev: input device pointer
+ * @data: data of effect
+ * @effect: effect to play
+ *
+ * Currently this driver supports only rumble effects.
+ */
+static int pm8xxx_vib_play_effect(struct input_dev *dev, void *data,
+				  struct ff_effect *effect)
+{
+	struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+	vib->speed = effect->u.rumble.strong_magnitude >> 8;
+	if (!vib->speed)
+		vib->speed = effect->u.rumble.weak_magnitude >> 9;
+
+	schedule_work(&vib->work);
+
+	return 0;
+}
+
+static int __devinit pm8xxx_vib_probe(struct platform_device *pdev)
+
+{
+	struct pm8xxx_vib *vib;
+	struct input_dev *input_dev;
+	int error;
+	u8 val;
+
+	vib = kzalloc(sizeof(*vib), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!vib || !input_dev) {
+		dev_err(&pdev->dev, "couldn't allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	INIT_WORK(&vib->work, pm8xxx_work_handler);
+	vib->dev = &pdev->dev;
+	vib->vib_input_dev = input_dev;
+
+	/* operate in manual mode */
+	error = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
+	if (error < 0)
+		goto err_free_mem;
+	val &= ~VIB_DRV_EN_MANUAL_MASK;
+	error = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
+	if (error < 0)
+		goto err_free_mem;
+
+	vib->reg_vib_drv = val;
+
+	input_dev->name = "pm8xxx_vib_ffmemless";
+	input_dev->id.version = 1;
+	input_dev->dev.parent = &pdev->dev;
+	input_dev->close = pm8xxx_vib_close;
+	input_set_drvdata(input_dev, vib);
+	input_set_capability(vib->vib_input_dev, EV_FF, FF_RUMBLE);
+
+	error = input_ff_create_memless(input_dev, NULL,
+					pm8xxx_vib_play_effect);
+	if (error) {
+		dev_err(&pdev->dev,
+			"couldn't register vibrator as FF device\n");
+		goto err_free_mem;
+	}
+
+	error = input_register_device(input_dev);
+	if (error) {
+		dev_err(&pdev->dev, "couldn't register input device\n");
+		goto err_destroy_memless;
+	}
+
+	platform_set_drvdata(pdev, vib);
+	return 0;
+
+err_destroy_memless:
+	input_ff_destroy(input_dev);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(vib);
+
+	return error;
+}
+
+static int __devexit pm8xxx_vib_remove(struct platform_device *pdev)
+{
+	struct pm8xxx_vib *vib = platform_get_drvdata(pdev);
+
+	input_unregister_device(vib->vib_input_dev);
+	kfree(vib);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pm8xxx_vib_suspend(struct device *dev)
+{
+	struct pm8xxx_vib *vib = dev_get_drvdata(dev);
+
+	/* Turn off the vibrator */
+	pm8xxx_vib_set(vib, false);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_vib_pm_ops, pm8xxx_vib_suspend, NULL);
+
+static struct platform_driver pm8xxx_vib_driver = {
+	.probe		= pm8xxx_vib_probe,
+	.remove		= __devexit_p(pm8xxx_vib_remove),
+	.driver		= {
+		.name	= "pm8xxx-vib",
+		.owner	= THIS_MODULE,
+		.pm	= &pm8xxx_vib_pm_ops,
+	},
+};
+
+static int __init pm8xxx_vib_init(void)
+{
+	return platform_driver_register(&pm8xxx_vib_driver);
+}
+module_init(pm8xxx_vib_init);
+
+static void __exit pm8xxx_vib_exit(void)
+{
+	platform_driver_unregister(&pm8xxx_vib_driver);
+}
+module_exit(pm8xxx_vib_exit);
+
+MODULE_ALIAS("platform:pm8xxx_vib");
+MODULE_DESCRIPTION("PMIC8xxx vibrator driver based on ff-memless framework");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Amy Maloche <amaloche@codeaurora.org>");
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index c43002e7ec7..23855e12a30 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -228,7 +228,7 @@ static void twl6040_vibra_close(struct input_dev *input)
 	mutex_unlock(&info->mutex);
 }
 
-#if CONFIG_PM_SLEEP
+#ifdef CONFIG_PM_SLEEP
 static int twl6040_vibra_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 99d58764ef0..003587c71f4 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -23,13 +23,6 @@
 #include "psmouse.h"
 #include "alps.h"
 
-#undef DEBUG
-#ifdef DEBUG
-#define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg)
-#else
-#define dbg(format, arg...) do {} while (0)
-#endif
-
 #define ALPS_OLDPROTO		0x01	/* old style input */
 #define ALPS_DUALPOINT		0x02	/* touchpad has trackstick */
 #define ALPS_PASS		0x04	/* device has a pass-through port */
@@ -297,10 +290,10 @@ static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
 		      psmouse->packet[4] |
 		      psmouse->packet[5]) & 0x80) ||
 		    (!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) {
-			dbg("refusing packet %x %x %x %x "
-			    "(suspected interleaved ps/2)\n",
-			    psmouse->packet[3], psmouse->packet[4],
-			    psmouse->packet[5], psmouse->packet[6]);
+			psmouse_dbg(psmouse,
+				    "refusing packet %x %x %x %x (suspected interleaved ps/2)\n",
+				    psmouse->packet[3], psmouse->packet[4],
+				    psmouse->packet[5], psmouse->packet[6]);
 			return PSMOUSE_BAD_DATA;
 		}
 
@@ -319,13 +312,13 @@ static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
 		 * There is also possibility that we got 6-byte ALPS
 		 * packet followed  by 3-byte packet from trackpoint. We
 		 * can not distinguish between these 2 scenarios but
-		 * becase the latter is unlikely to happen in course of
+		 * because the latter is unlikely to happen in course of
 		 * normal operation (user would need to press all
 		 * buttons on the pad and start moving trackpoint
 		 * without touching the pad surface) we assume former.
 		 * Even if we are wrong the wost thing that would happen
 		 * the cursor would jump but we should not get protocol
-		 * desynchronization.
+		 * de-synchronization.
 		 */
 
 		alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
@@ -361,10 +354,10 @@ static void alps_flush_packet(unsigned long data)
 		if ((psmouse->packet[3] |
 		     psmouse->packet[4] |
 		     psmouse->packet[5]) & 0x80) {
-			dbg("refusing packet %x %x %x "
-			    "(suspected interleaved ps/2)\n",
-			    psmouse->packet[3], psmouse->packet[4],
-			    psmouse->packet[5]);
+			psmouse_dbg(psmouse,
+				    "refusing packet %x %x %x (suspected interleaved ps/2)\n",
+				    psmouse->packet[3], psmouse->packet[4],
+				    psmouse->packet[5]);
 		} else {
 			alps_process_packet(psmouse);
 		}
@@ -396,16 +389,18 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 	}
 
 	if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
-		dbg("refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
-		    psmouse->packet[0], model->mask0, model->byte0);
+		psmouse_dbg(psmouse,
+			    "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
+			    psmouse->packet[0], model->mask0, model->byte0);
 		return PSMOUSE_BAD_DATA;
 	}
 
 	/* Bytes 2 - 6 should have 0 in the highest bit */
 	if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
 	    (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
-		dbg("refusing packet[%i] = %x\n",
-		    psmouse->pktcnt - 1, psmouse->packet[psmouse->pktcnt - 1]);
+		psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
+			    psmouse->pktcnt - 1,
+			    psmouse->packet[psmouse->pktcnt - 1]);
 		return PSMOUSE_BAD_DATA;
 	}
 
@@ -439,7 +434,8 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
 	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
 		return NULL;
 
-	dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
+	psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x",
+		    param[0], param[1], param[2]);
 
 	if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100))
 		return NULL;
@@ -459,7 +455,8 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
 	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
 		return NULL;
 
-	dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
+	psmouse_dbg(psmouse, "E7 report: %2.2x %2.2x %2.2x",
+		    param[0], param[1], param[2]);
 
 	if (version) {
 		for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
@@ -527,7 +524,8 @@ static int alps_get_status(struct psmouse *psmouse, char *param)
 	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
 		return -1;
 
-	dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
+	psmouse_dbg(psmouse, "Status: %2.2x %2.2x %2.2x",
+		    param[0], param[1], param[2]);
 
 	return 0;
 }
@@ -605,12 +603,12 @@ static int alps_hw_init(struct psmouse *psmouse)
 	}
 
 	if (alps_tap_mode(psmouse, true)) {
-		printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
+		psmouse_warn(psmouse, "Failed to enable hardware tapping\n");
 		return -1;
 	}
 
 	if (alps_absolute_mode(psmouse)) {
-		printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
+		psmouse_err(psmouse, "Failed to enable absolute mode\n");
 		return -1;
 	}
 
@@ -621,7 +619,7 @@ static int alps_hw_init(struct psmouse *psmouse)
 
 	/* ALPS needs stream mode, otherwise it won't report any data */
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
-		printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
+		psmouse_err(psmouse, "Failed to enable stream mode\n");
 		return -1;
 	}
 
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 32503565faf..09b93b11a27 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -10,8 +10,6 @@
  * Trademarks are the property of their respective owners.
  */
 
-#define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
-
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -25,13 +23,10 @@
 #define elantech_debug(fmt, ...)					\
 	do {								\
 		if (etd->debug)						\
-			printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
+			psmouse_printk(KERN_DEBUG, psmouse,		\
+					fmt, ##__VA_ARGS__);		\
 	} while (0)
 
-static bool force_elantech;
-module_param_named(force_elantech, force_elantech, bool, 0644);
-MODULE_PARM_DESC(force_elantech, "Force the Elantech PS/2 protocol extension to be used, 1 = enabled, 0 = disabled (default).");
-
 /*
  * Send a Synaptics style sliced query command
  */
@@ -40,7 +35,7 @@ static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c,
 {
 	if (psmouse_sliced_command(psmouse, c) ||
 	    ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) {
-		pr_err("synaptics_send_cmd query 0x%02x failed.\n", c);
+		psmouse_err(psmouse, "%s query 0x%02x failed.\n", __func__, c);
 		return -1;
 	}
 
@@ -69,7 +64,7 @@ static int elantech_ps2_command(struct psmouse *psmouse,
 	} while (tries > 0);
 
 	if (rc)
-		pr_err("ps2 command 0x%02x failed.\n", command);
+		psmouse_err(psmouse, "ps2 command 0x%02x failed.\n", command);
 
 	return rc;
 }
@@ -84,7 +79,7 @@ static int elantech_read_reg(struct psmouse *psmouse, unsigned char reg,
 	unsigned char param[3];
 	int rc = 0;
 
-	if (reg < 0x10 || reg > 0x26)
+	if (reg < 0x07 || reg > 0x26)
 		return -1;
 
 	if (reg > 0x11 && reg < 0x20)
@@ -108,12 +103,24 @@ static int elantech_read_reg(struct psmouse *psmouse, unsigned char reg,
 			rc = -1;
 		}
 		break;
+
+	case 3 ... 4:
+		if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, reg) ||
+		    elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
+			rc = -1;
+		}
+		break;
 	}
 
 	if (rc)
-		pr_err("failed to read register 0x%02x.\n", reg);
-	else
+		psmouse_err(psmouse, "failed to read register 0x%02x.\n", reg);
+	else if (etd->hw_version != 4)
 		*val = param[0];
+	else
+		*val = param[1];
 
 	return rc;
 }
@@ -127,7 +134,7 @@ static int elantech_write_reg(struct psmouse *psmouse, unsigned char reg,
 	struct elantech_data *etd = psmouse->private;
 	int rc = 0;
 
-	if (reg < 0x10 || reg > 0x26)
+	if (reg < 0x07 || reg > 0x26)
 		return -1;
 
 	if (reg > 0x11 && reg < 0x20)
@@ -154,11 +161,38 @@ static int elantech_write_reg(struct psmouse *psmouse, unsigned char reg,
 			rc = -1;
 		}
 		break;
+
+	case 3:
+		if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, reg) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, val) ||
+		    elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) {
+			rc = -1;
+		}
+		break;
+
+	case 4:
+		if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, reg) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+		    elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+		    elantech_ps2_command(psmouse, NULL, val) ||
+		    elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) {
+			rc = -1;
+		}
+		break;
 	}
 
 	if (rc)
-		pr_err("failed to write register 0x%02x with value 0x%02x.\n",
-			reg, val);
+		psmouse_err(psmouse,
+			    "failed to write register 0x%02x with value 0x%02x.\n",
+			    reg, val);
 
 	return rc;
 }
@@ -166,13 +200,13 @@ static int elantech_write_reg(struct psmouse *psmouse, unsigned char reg,
 /*
  * Dump a complete mouse movement packet to the syslog
  */
-static void elantech_packet_dump(unsigned char *packet, int size)
+static void elantech_packet_dump(struct psmouse *psmouse)
 {
 	int	i;
 
-	printk(KERN_DEBUG pr_fmt("PS/2 packet ["));
-	for (i = 0; i < size; i++)
-		printk("%s0x%02x ", (i) ? ", " : " ", packet[i]);
+	psmouse_printk(KERN_DEBUG, psmouse, "PS/2 packet [");
+	for (i = 0; i < psmouse->pktsize; i++)
+		printk("%s0x%02x ", i ? ", " : " ", psmouse->packet[i]);
 	printk("]\n");
 }
 
@@ -223,7 +257,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 		input_report_abs(dev, ABS_X,
 			((packet[1] & 0x0c) << 6) | packet[2]);
 		input_report_abs(dev, ABS_Y,
-			ETP_YMAX_V1 - (((packet[1] & 0x03) << 8) | packet[3]));
+			etd->y_max - (((packet[1] & 0x03) << 8) | packet[3]));
 	}
 
 	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
@@ -233,7 +267,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
 
 	if (etd->fw_version < 0x020000 &&
-	    (etd->capabilities & ETP_CAP_HAS_ROCKER)) {
+	    (etd->capabilities[0] & ETP_CAP_HAS_ROCKER)) {
 		/* rocker up */
 		input_report_key(dev, BTN_FORWARD, packet[0] & 0x40);
 		/* rocker down */
@@ -273,11 +307,11 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 	struct elantech_data *etd = psmouse->private;
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
-	unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0, width = 0, pres = 0;
+	unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+	unsigned int width = 0, pres = 0;
 
 	/* byte 0: n1  n0   .   .   .   .   R   L */
 	fingers = (packet[0] & 0xc0) >> 6;
-	input_report_key(dev, BTN_TOUCH, fingers != 0);
 
 	switch (fingers) {
 	case 3:
@@ -290,18 +324,15 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		/* pass through... */
 	case 1:
 		/*
-		 * byte 1:  .   .   .   .   .  x10 x9  x8
+		 * byte 1:  .   .   .   .  x11 x10 x9  x8
 		 * byte 2: x7  x6  x5  x4  x4  x2  x1  x0
 		 */
-		x1 = ((packet[1] & 0x07) << 8) | packet[2];
+		x1 = ((packet[1] & 0x0f) << 8) | packet[2];
 		/*
-		 * byte 4:  .   .   .   .   .   .  y9  y8
+		 * byte 4:  .   .   .   .  y11 y10 y9  y8
 		 * byte 5: y7  y6  y5  y4  y3  y2  y1  y0
 		 */
-		y1 = ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]);
-
-		input_report_abs(dev, ABS_X, x1);
-		input_report_abs(dev, ABS_Y, y1);
+		y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
 
 		pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
 		width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
@@ -314,22 +345,18 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		 * byte 0:  .   .  ay8 ax8  .   .   .   .
 		 * byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
 		 */
-		x1 = ((packet[0] & 0x10) << 4) | packet[1];
+		x1 = (((packet[0] & 0x10) << 4) | packet[1]) << 2;
 		/* byte 2: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */
-		y1 = ETP_2FT_YMAX - (((packet[0] & 0x20) << 3) | packet[2]);
+		y1 = etd->y_max -
+			((((packet[0] & 0x20) << 3) | packet[2]) << 2);
 		/*
 		 * byte 3:  .   .  by8 bx8  .   .   .   .
 		 * byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0
 		 */
-		x2 = ((packet[3] & 0x10) << 4) | packet[4];
+		x2 = (((packet[3] & 0x10) << 4) | packet[4]) << 2;
 		/* byte 5: by7 by8 by5 by4 by3 by2 by1 by0 */
-		y2 = ETP_2FT_YMAX - (((packet[3] & 0x20) << 3) | packet[5]);
-		/*
-		 * For compatibility with the X Synaptics driver scale up
-		 * one coordinate and report as ordinary mouse movent
-		 */
-		input_report_abs(dev, ABS_X, x1 << 2);
-		input_report_abs(dev, ABS_Y, y1 << 2);
+		y2 = etd->y_max -
+			((((packet[3] & 0x20) << 3) | packet[5]) << 2);
 
 		/* Unknown so just report sensible values */
 		pres = 127;
@@ -337,6 +364,11 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		break;
 	}
 
+	input_report_key(dev, BTN_TOUCH, fingers != 0);
+	if (fingers != 0) {
+		input_report_abs(dev, ABS_X, x1);
+		input_report_abs(dev, ABS_Y, y1);
+	}
 	elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
 	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
 	input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
@@ -352,7 +384,208 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 	input_sync(dev);
 }
 
-static int elantech_check_parity_v1(struct psmouse *psmouse)
+/*
+ * Interpret complete data packets and report absolute mode input events for
+ * hardware version 3. (12 byte packets for two fingers)
+ */
+static void elantech_report_absolute_v3(struct psmouse *psmouse,
+					int packet_type)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct elantech_data *etd = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	unsigned int fingers = 0, x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+	unsigned int width = 0, pres = 0;
+
+	/* byte 0: n1  n0   .   .   .   .   R   L */
+	fingers = (packet[0] & 0xc0) >> 6;
+
+	switch (fingers) {
+	case 3:
+	case 1:
+		/*
+		 * byte 1:  .   .   .   .  x11 x10 x9  x8
+		 * byte 2: x7  x6  x5  x4  x4  x2  x1  x0
+		 */
+		x1 = ((packet[1] & 0x0f) << 8) | packet[2];
+		/*
+		 * byte 4:  .   .   .   .  y11 y10 y9  y8
+		 * byte 5: y7  y6  y5  y4  y3  y2  y1  y0
+		 */
+		y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+		break;
+
+	case 2:
+		if (packet_type == PACKET_V3_HEAD) {
+			/*
+			 * byte 1:   .    .    .    .  ax11 ax10 ax9  ax8
+			 * byte 2: ax7  ax6  ax5  ax4  ax3  ax2  ax1  ax0
+			 */
+			etd->mt[0].x = ((packet[1] & 0x0f) << 8) | packet[2];
+			/*
+			 * byte 4:   .    .    .    .  ay11 ay10 ay9  ay8
+			 * byte 5: ay7  ay6  ay5  ay4  ay3  ay2  ay1  ay0
+			 */
+			etd->mt[0].y = etd->y_max -
+				(((packet[4] & 0x0f) << 8) | packet[5]);
+			/*
+			 * wait for next packet
+			 */
+			return;
+		}
+
+		/* packet_type == PACKET_V3_TAIL */
+		x1 = etd->mt[0].x;
+		y1 = etd->mt[0].y;
+		x2 = ((packet[1] & 0x0f) << 8) | packet[2];
+		y2 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+		break;
+	}
+
+	pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+	width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
+
+	input_report_key(dev, BTN_TOUCH, fingers != 0);
+	if (fingers != 0) {
+		input_report_abs(dev, ABS_X, x1);
+		input_report_abs(dev, ABS_Y, y1);
+	}
+	elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
+	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
+	input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
+	input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
+	input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+	input_report_abs(dev, ABS_PRESSURE, pres);
+	input_report_abs(dev, ABS_TOOL_WIDTH, width);
+
+	input_sync(dev);
+}
+
+static void elantech_input_sync_v4(struct psmouse *psmouse)
+{
+	struct input_dev *dev = psmouse->dev;
+	unsigned char *packet = psmouse->packet;
+
+	input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+	input_mt_report_pointer_emulation(dev, true);
+	input_sync(dev);
+}
+
+static void process_packet_status_v4(struct psmouse *psmouse)
+{
+	struct input_dev *dev = psmouse->dev;
+	unsigned char *packet = psmouse->packet;
+	unsigned fingers;
+	int i;
+
+	/* notify finger state change */
+	fingers = packet[1] & 0x1f;
+	for (i = 0; i < ETP_MAX_FINGERS; i++) {
+		if ((fingers & (1 << i)) == 0) {
+			input_mt_slot(dev, i);
+			input_mt_report_slot_state(dev, MT_TOOL_FINGER, false);
+		}
+	}
+
+	elantech_input_sync_v4(psmouse);
+}
+
+static void process_packet_head_v4(struct psmouse *psmouse)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct elantech_data *etd = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	int id = ((packet[3] & 0xe0) >> 5) - 1;
+	int pres, traces;
+
+	if (id < 0)
+		return;
+
+	etd->mt[id].x = ((packet[1] & 0x0f) << 8) | packet[2];
+	etd->mt[id].y = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+	pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+	traces = (packet[0] & 0xf0) >> 4;
+
+	input_mt_slot(dev, id);
+	input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+
+	input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x);
+	input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y);
+	input_report_abs(dev, ABS_MT_PRESSURE, pres);
+	input_report_abs(dev, ABS_MT_TOUCH_MAJOR, traces * etd->width);
+	/* report this for backwards compatibility */
+	input_report_abs(dev, ABS_TOOL_WIDTH, traces);
+
+	elantech_input_sync_v4(psmouse);
+}
+
+static void process_packet_motion_v4(struct psmouse *psmouse)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct elantech_data *etd = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	int weight, delta_x1 = 0, delta_y1 = 0, delta_x2 = 0, delta_y2 = 0;
+	int id, sid;
+
+	id = ((packet[0] & 0xe0) >> 5) - 1;
+	if (id < 0)
+		return;
+
+	sid = ((packet[3] & 0xe0) >> 5) - 1;
+	weight = (packet[0] & 0x10) ? ETP_WEIGHT_VALUE : 1;
+	/*
+	 * Motion packets give us the delta of x, y values of specific fingers,
+	 * but in two's complement. Let the compiler do the conversion for us.
+	 * Also _enlarge_ the numbers to int, in case of overflow.
+	 */
+	delta_x1 = (signed char)packet[1];
+	delta_y1 = (signed char)packet[2];
+	delta_x2 = (signed char)packet[4];
+	delta_y2 = (signed char)packet[5];
+
+	etd->mt[id].x += delta_x1 * weight;
+	etd->mt[id].y -= delta_y1 * weight;
+	input_mt_slot(dev, id);
+	input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x);
+	input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y);
+
+	if (sid >= 0) {
+		etd->mt[sid].x += delta_x2 * weight;
+		etd->mt[sid].y -= delta_y2 * weight;
+		input_mt_slot(dev, sid);
+		input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[sid].x);
+		input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[sid].y);
+	}
+
+	elantech_input_sync_v4(psmouse);
+}
+
+static void elantech_report_absolute_v4(struct psmouse *psmouse,
+					int packet_type)
+{
+	switch (packet_type) {
+	case PACKET_V4_STATUS:
+		process_packet_status_v4(psmouse);
+		break;
+
+	case PACKET_V4_HEAD:
+		process_packet_head_v4(psmouse);
+		break;
+
+	case PACKET_V4_MOTION:
+		process_packet_motion_v4(psmouse);
+		break;
+
+	case PACKET_UNKNOWN:
+	default:
+		/* impossible to get here */
+		break;
+	}
+}
+
+static int elantech_packet_check_v1(struct psmouse *psmouse)
 {
 	struct elantech_data *etd = psmouse->private;
 	unsigned char *packet = psmouse->packet;
@@ -376,31 +609,142 @@ static int elantech_check_parity_v1(struct psmouse *psmouse)
 	       etd->parity[packet[3]] == p3;
 }
 
+static int elantech_debounce_check_v2(struct psmouse *psmouse)
+{
+        /*
+         * When we encounter packet that matches this exactly, it means the
+         * hardware is in debounce status. Just ignore the whole packet.
+         */
+        const u8 debounce_packet[] = { 0x84, 0xff, 0xff, 0x02, 0xff, 0xff };
+        unsigned char *packet = psmouse->packet;
+
+        return !memcmp(packet, debounce_packet, sizeof(debounce_packet));
+}
+
+static int elantech_packet_check_v2(struct psmouse *psmouse)
+{
+	struct elantech_data *etd = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+
+	/*
+	 * V2 hardware has two flavors. Older ones that do not report pressure,
+	 * and newer ones that reports pressure and width. With newer ones, all
+	 * packets (1, 2, 3 finger touch) have the same constant bits. With
+	 * older ones, 1/3 finger touch packets and 2 finger touch packets
+	 * have different constant bits.
+	 * With all three cases, if the constant bits are not exactly what I
+	 * expected, I consider them invalid.
+	 */
+	if (etd->reports_pressure)
+		return (packet[0] & 0x0c) == 0x04 &&
+		       (packet[3] & 0x0f) == 0x02;
+
+	if ((packet[0] & 0xc0) == 0x80)
+		return (packet[0] & 0x0c) == 0x0c &&
+		       (packet[3] & 0x0e) == 0x08;
+
+	return (packet[0] & 0x3c) == 0x3c &&
+	       (packet[1] & 0xf0) == 0x00 &&
+	       (packet[3] & 0x3e) == 0x38 &&
+	       (packet[4] & 0xf0) == 0x00;
+}
+
+/*
+ * We check the constant bits to determine what packet type we get,
+ * so packet checking is mandatory for v3 and later hardware.
+ */
+static int elantech_packet_check_v3(struct psmouse *psmouse)
+{
+	const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff };
+	unsigned char *packet = psmouse->packet;
+
+	/*
+	 * check debounce first, it has the same signature in byte 0
+	 * and byte 3 as PACKET_V3_HEAD.
+	 */
+	if (!memcmp(packet, debounce_packet, sizeof(debounce_packet)))
+		return PACKET_DEBOUNCE;
+
+	if ((packet[0] & 0x0c) == 0x04 && (packet[3] & 0xcf) == 0x02)
+		return PACKET_V3_HEAD;
+
+	if ((packet[0] & 0x0c) == 0x0c && (packet[3] & 0xce) == 0x0c)
+		return PACKET_V3_TAIL;
+
+	return PACKET_UNKNOWN;
+}
+
+static int elantech_packet_check_v4(struct psmouse *psmouse)
+{
+	unsigned char *packet = psmouse->packet;
+
+	if ((packet[0] & 0x0c) == 0x04 &&
+	    (packet[3] & 0x1f) == 0x11)
+		return PACKET_V4_HEAD;
+
+	if ((packet[0] & 0x0c) == 0x04 &&
+	    (packet[3] & 0x1f) == 0x12)
+		return PACKET_V4_MOTION;
+
+	if ((packet[0] & 0x0c) == 0x04 &&
+	    (packet[3] & 0x1f) == 0x10)
+		return PACKET_V4_STATUS;
+
+	return PACKET_UNKNOWN;
+}
+
 /*
  * Process byte stream from mouse and handle complete packets
  */
 static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse)
 {
 	struct elantech_data *etd = psmouse->private;
+	int packet_type;
 
 	if (psmouse->pktcnt < psmouse->pktsize)
 		return PSMOUSE_GOOD_DATA;
 
 	if (etd->debug > 1)
-		elantech_packet_dump(psmouse->packet, psmouse->pktsize);
+		elantech_packet_dump(psmouse);
 
 	switch (etd->hw_version) {
 	case 1:
-		if (etd->paritycheck && !elantech_check_parity_v1(psmouse))
+		if (etd->paritycheck && !elantech_packet_check_v1(psmouse))
 			return PSMOUSE_BAD_DATA;
 
 		elantech_report_absolute_v1(psmouse);
 		break;
 
 	case 2:
-		/* We don't know how to check parity in protocol v2 */
+		/* ignore debounce */
+		if (elantech_debounce_check_v2(psmouse))
+			return PSMOUSE_FULL_PACKET;
+
+		if (etd->paritycheck && !elantech_packet_check_v2(psmouse))
+			return PSMOUSE_BAD_DATA;
+
 		elantech_report_absolute_v2(psmouse);
 		break;
+
+	case 3:
+		packet_type = elantech_packet_check_v3(psmouse);
+		/* ignore debounce */
+		if (packet_type == PACKET_DEBOUNCE)
+			return PSMOUSE_FULL_PACKET;
+
+		if (packet_type == PACKET_UNKNOWN)
+			return PSMOUSE_BAD_DATA;
+
+		elantech_report_absolute_v3(psmouse, packet_type);
+		break;
+
+	case 4:
+		packet_type = elantech_packet_check_v4(psmouse);
+		if (packet_type == PACKET_UNKNOWN)
+			return PSMOUSE_BAD_DATA;
+
+		elantech_report_absolute_v4(psmouse, packet_type);
+		break;
 	}
 
 	return PSMOUSE_FULL_PACKET;
@@ -435,15 +779,29 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
 		    elantech_write_reg(psmouse, 0x11, etd->reg_11) ||
 		    elantech_write_reg(psmouse, 0x21, etd->reg_21)) {
 			rc = -1;
-			break;
 		}
+		break;
+
+	case 3:
+		etd->reg_10 = 0x0b;
+		if (elantech_write_reg(psmouse, 0x10, etd->reg_10))
+			rc = -1;
+
+		break;
+
+	case 4:
+		etd->reg_07 = 0x01;
+		if (elantech_write_reg(psmouse, 0x07, etd->reg_07))
+			rc = -1;
+
+		goto skip_readback_reg_10; /* v4 has no reg 0x10 to read */
 	}
 
 	if (rc == 0) {
 		/*
 		 * 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
+		 * the touchpad is probably initializing and not ready until
 		 * we read back the value we just wrote.
 		 */
 		do {
@@ -456,27 +814,115 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
 		} while (tries > 0);
 
 		if (rc) {
-			pr_err("failed to read back register 0x10.\n");
+			psmouse_err(psmouse,
+				    "failed to read back register 0x10.\n");
 		} else if (etd->hw_version == 1 &&
 			   !(val & ETP_R10_ABSOLUTE_MODE)) {
-			pr_err("touchpad refuses to switch to absolute mode.\n");
+			psmouse_err(psmouse,
+				    "touchpad refuses to switch to absolute mode.\n");
 			rc = -1;
 		}
 	}
 
+ skip_readback_reg_10:
 	if (rc)
-		pr_err("failed to initialise registers.\n");
+		psmouse_err(psmouse, "failed to initialise registers.\n");
 
 	return rc;
 }
 
+static int elantech_set_range(struct psmouse *psmouse,
+			      unsigned int *x_min, unsigned int *y_min,
+			      unsigned int *x_max, unsigned int *y_max,
+			      unsigned int *width)
+{
+	struct elantech_data *etd = psmouse->private;
+	unsigned char param[3];
+	unsigned char traces;
+
+	switch (etd->hw_version) {
+	case 1:
+		*x_min = ETP_XMIN_V1;
+		*y_min = ETP_YMIN_V1;
+		*x_max = ETP_XMAX_V1;
+		*y_max = ETP_YMAX_V1;
+		break;
+
+	case 2:
+		if (etd->fw_version == 0x020800 ||
+		    etd->fw_version == 0x020b00 ||
+		    etd->fw_version == 0x020030) {
+			*x_min = ETP_XMIN_V2;
+			*y_min = ETP_YMIN_V2;
+			*x_max = ETP_XMAX_V2;
+			*y_max = ETP_YMAX_V2;
+		} else {
+			int i;
+			int fixed_dpi;
+
+			i = (etd->fw_version > 0x020800 &&
+			     etd->fw_version < 0x020900) ? 1 : 2;
+
+			if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+				return -1;
+
+			fixed_dpi = param[1] & 0x10;
+
+			if (((etd->fw_version >> 16) == 0x14) && fixed_dpi) {
+				if (synaptics_send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
+					return -1;
+
+				*x_max = (etd->capabilities[1] - i) * param[1] / 2;
+				*y_max = (etd->capabilities[2] - i) * param[2] / 2;
+			} else if (etd->fw_version == 0x040216) {
+				*x_max = 819;
+				*y_max = 405;
+			} else if (etd->fw_version == 0x040219 || etd->fw_version == 0x040215) {
+				*x_max = 900;
+				*y_max = 500;
+			} else {
+				*x_max = (etd->capabilities[1] - i) * 64;
+				*y_max = (etd->capabilities[2] - i) * 64;
+			}
+		}
+		break;
+
+	case 3:
+		if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+			return -1;
+
+		*x_max = (0x0f & param[0]) << 8 | param[1];
+		*y_max = (0xf0 & param[0]) << 4 | param[2];
+		break;
+
+	case 4:
+		if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+			return -1;
+
+		*x_max = (0x0f & param[0]) << 8 | param[1];
+		*y_max = (0xf0 & param[0]) << 4 | param[2];
+		traces = etd->capabilities[1];
+		if ((traces < 2) || (traces > *x_max))
+			return -1;
+
+		*width = *x_max / (traces - 1);
+		break;
+	}
+
+	return 0;
+}
+
 /*
  * Set the appropriate event bits for the input subsystem
  */
-static void elantech_set_input_params(struct psmouse *psmouse)
+static int elantech_set_input_params(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
 	struct elantech_data *etd = psmouse->private;
+	unsigned int x_min = 0, y_min = 0, x_max = 0, y_max = 0, width = 0;
+
+	if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max, &width))
+		return -1;
 
 	__set_bit(EV_KEY, dev->evbit);
 	__set_bit(EV_ABS, dev->evbit);
@@ -494,30 +940,64 @@ static void elantech_set_input_params(struct psmouse *psmouse)
 	case 1:
 		/* Rocker button */
 		if (etd->fw_version < 0x020000 &&
-		    (etd->capabilities & ETP_CAP_HAS_ROCKER)) {
+		    (etd->capabilities[0] & ETP_CAP_HAS_ROCKER)) {
 			__set_bit(BTN_FORWARD, dev->keybit);
 			__set_bit(BTN_BACK, dev->keybit);
 		}
-		input_set_abs_params(dev, ABS_X, ETP_XMIN_V1, ETP_XMAX_V1, 0, 0);
-		input_set_abs_params(dev, ABS_Y, ETP_YMIN_V1, ETP_YMAX_V1, 0, 0);
+		input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+		input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
 		break;
 
 	case 2:
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
-		input_set_abs_params(dev, ABS_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
-		input_set_abs_params(dev, ABS_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
+		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
+		/* fall through */
+	case 3:
+		input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+		input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
 		if (etd->reports_pressure) {
 			input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
 					     ETP_PMAX_V2, 0, 0);
 			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 					     ETP_WMAX_V2, 0, 0);
 		}
-		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
 		input_mt_init_slots(dev, 2);
-		input_set_abs_params(dev, ABS_MT_POSITION_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
-		input_set_abs_params(dev, ABS_MT_POSITION_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+		break;
+
+	case 4:
+		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+		/* For X to recognize me as touchpad. */
+		input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+		input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
+		/*
+		 * range of pressure and width is the same as v2,
+		 * report ABS_PRESSURE, ABS_TOOL_WIDTH for compatibility.
+		 */
+		input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
+				     ETP_PMAX_V2, 0, 0);
+		input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+				     ETP_WMAX_V2, 0, 0);
+		/* Multitouch capable pad, up to 5 fingers. */
+		input_mt_init_slots(dev, ETP_MAX_FINGERS);
+		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+		input_set_abs_params(dev, ABS_MT_PRESSURE, ETP_PMIN_V2,
+				     ETP_PMAX_V2, 0, 0);
+		/*
+		 * The firmware reports how many trace lines the finger spans,
+		 * convert to surface unit as Protocol-B requires.
+		 */
+		input_set_abs_params(dev, ABS_MT_TOUCH_MAJOR, 0,
+				     ETP_WMAX_V2 * width, 0, 0);
 		break;
 	}
+
+	etd->y_max = y_max;
+	etd->width = width;
+
+	return 0;
 }
 
 struct elantech_attr_data {
@@ -587,6 +1067,7 @@ static ssize_t elantech_set_int_attr(struct psmouse *psmouse,
 			    elantech_show_int_attr,			\
 			    elantech_set_int_attr)
 
+ELANTECH_INT_ATTR(reg_07, 0x07);
 ELANTECH_INT_ATTR(reg_10, 0x10);
 ELANTECH_INT_ATTR(reg_11, 0x11);
 ELANTECH_INT_ATTR(reg_20, 0x20);
@@ -600,6 +1081,7 @@ ELANTECH_INT_ATTR(debug, 0);
 ELANTECH_INT_ATTR(paritycheck, 0);
 
 static struct attribute *elantech_attrs[] = {
+	&psmouse_attr_reg_07.dattr.attr,
 	&psmouse_attr_reg_10.dattr.attr,
 	&psmouse_attr_reg_11.dattr.attr,
 	&psmouse_attr_reg_20.dattr.attr,
@@ -651,7 +1133,7 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties)
 	    ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE11) ||
 	    ps2_command(ps2dev,  NULL, PSMOUSE_CMD_SETSCALE11) ||
 	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
-		pr_debug("sending Elantech magic knock failed.\n");
+		psmouse_dbg(psmouse, "sending Elantech magic knock failed.\n");
 		return -1;
 	}
 
@@ -659,9 +1141,11 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties)
 	 * Report this in case there are Elantech models that use a different
 	 * set of magic numbers
 	 */
-	if (param[0] != 0x3c || param[1] != 0x03 || param[2] != 0xc8) {
-		pr_debug("unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n",
-			 param[0], param[1], param[2]);
+	if (param[0] != 0x3c || param[1] != 0x03 ||
+	    (param[2] != 0xc8 && param[2] != 0x00)) {
+		psmouse_dbg(psmouse,
+			    "unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n",
+			    param[0], param[1], param[2]);
 		return -1;
 	}
 
@@ -671,20 +1155,18 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties)
 	 * to Elantech magic knock and there might be more.
 	 */
 	if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
-		pr_debug("failed to query firmware version.\n");
+		psmouse_dbg(psmouse, "failed to query firmware version.\n");
 		return -1;
 	}
 
-	pr_debug("Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
-		 param[0], param[1], param[2]);
+	psmouse_dbg(psmouse,
+		    "Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
+		    param[0], param[1], param[2]);
 
 	if (!elantech_is_signature_valid(param)) {
-		if (!force_elantech) {
-			pr_debug("Probably not a real Elantech touchpad. Aborting.\n");
-			return -1;
-		}
-
-		pr_debug("Probably not a real Elantech touchpad. Enabling anyway due to force_elantech.\n");
+		psmouse_dbg(psmouse,
+			    "Probably not a real Elantech touchpad. Aborting.\n");
+		return -1;
 	}
 
 	if (set_properties) {
@@ -715,7 +1197,8 @@ static int elantech_reconnect(struct psmouse *psmouse)
 		return -1;
 
 	if (elantech_set_absolute_mode(psmouse)) {
-		pr_err("failed to put touchpad back into absolute mode.\n");
+		psmouse_err(psmouse,
+			    "failed to put touchpad back into absolute mode.\n");
 		return -1;
 	}
 
@@ -723,6 +1206,48 @@ static int elantech_reconnect(struct psmouse *psmouse)
 }
 
 /*
+ * determine hardware version and set some properties according to it.
+ */
+static int elantech_set_properties(struct elantech_data *etd)
+{
+	int ver = (etd->fw_version & 0x0f0000) >> 16;
+
+	if (etd->fw_version < 0x020030 || etd->fw_version == 0x020600)
+		etd->hw_version = 1;
+	else if (etd->fw_version < 0x150600)
+		etd->hw_version = 2;
+	else if (ver == 5)
+		etd->hw_version = 3;
+	else if (ver == 6)
+		etd->hw_version = 4;
+	else
+		return -1;
+
+	/*
+	 * Turn on packet checking by default.
+	 */
+	etd->paritycheck = 1;
+
+	/*
+	 * This firmware suffers from misreporting coordinates when
+	 * a touch action starts causing the mouse cursor or scrolled page
+	 * to jump. Enable a workaround.
+	 */
+	etd->jumpy_cursor =
+		(etd->fw_version == 0x020022 || etd->fw_version == 0x020600);
+
+	if (etd->hw_version > 1) {
+		/* For now show extra debug information */
+		etd->debug = 1;
+
+		if (etd->fw_version >= 0x020800)
+			etd->reports_pressure = true;
+	}
+
+	return 0;
+}
+
+/*
  * Initialize the touchpad and create sysfs entries
  */
 int elantech_init(struct psmouse *psmouse)
@@ -743,70 +1268,53 @@ int elantech_init(struct psmouse *psmouse)
 	 * Do the version query again so we can store the result
 	 */
 	if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
-		pr_err("failed to query firmware version.\n");
+		psmouse_err(psmouse, "failed to query firmware version.\n");
 		goto init_fail;
 	}
-
 	etd->fw_version = (param[0] << 16) | (param[1] << 8) | param[2];
 
-	/*
-	 * Assume every version greater than this is new EeePC style
-	 * hardware with 6 byte packets
-	 */
-	if (etd->fw_version >= 0x020030) {
-		etd->hw_version = 2;
-		/* For now show extra debug information */
-		etd->debug = 1;
-		/* Don't know how to do parity checking for version 2 */
-		etd->paritycheck = 0;
-
-		if (etd->fw_version >= 0x020800)
-			etd->reports_pressure = true;
-
-	} else {
-		etd->hw_version = 1;
-		etd->paritycheck = 1;
-	}
-
-	pr_info("assuming hardware version %d, firmware version %d.%d.%d\n",
-		etd->hw_version, param[0], param[1], param[2]);
-
-	if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY, param)) {
-		pr_err("failed to query capabilities.\n");
+	if (elantech_set_properties(etd)) {
+		psmouse_err(psmouse, "unknown hardware version, aborting...\n");
 		goto init_fail;
 	}
-	pr_info("Synaptics capabilities query result 0x%02x, 0x%02x, 0x%02x.\n",
-		param[0], param[1], param[2]);
-	etd->capabilities = param[0];
+	psmouse_info(psmouse,
+		     "assuming hardware version %d (with firmware version 0x%02x%02x%02x)\n",
+		     etd->hw_version, param[0], param[1], param[2]);
 
-	/*
-	 * This firmware suffers from misreporting coordinates when
-	 * a touch action starts causing the mouse cursor or scrolled page
-	 * to jump. Enable a workaround.
-	 */
-	if (etd->fw_version == 0x020022 || etd->fw_version == 0x020600) {
-		pr_info("firmware version 2.0.34/2.6.0 detected, enabling jumpy cursor workaround\n");
-		etd->jumpy_cursor = true;
+	if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY,
+	    etd->capabilities)) {
+		psmouse_err(psmouse, "failed to query capabilities.\n");
+		goto init_fail;
 	}
+	psmouse_info(psmouse,
+		     "Synaptics capabilities query result 0x%02x, 0x%02x, 0x%02x.\n",
+		     etd->capabilities[0], etd->capabilities[1],
+		     etd->capabilities[2]);
 
 	if (elantech_set_absolute_mode(psmouse)) {
-		pr_err("failed to put touchpad into absolute mode.\n");
+		psmouse_err(psmouse,
+			    "failed to put touchpad into absolute mode.\n");
 		goto init_fail;
 	}
 
-	elantech_set_input_params(psmouse);
+	if (elantech_set_input_params(psmouse)) {
+		psmouse_err(psmouse, "failed to query touchpad range.\n");
+		goto init_fail;
+	}
 
 	error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj,
 				   &elantech_attr_group);
 	if (error) {
-		pr_err("failed to create sysfs attributes, error: %d.\n", error);
+		psmouse_err(psmouse,
+			    "failed to create sysfs attributes, error: %d.\n",
+			    error);
 		goto init_fail;
 	}
 
 	psmouse->protocol_handler = elantech_process_byte;
 	psmouse->disconnect = elantech_disconnect;
 	psmouse->reconnect = elantech_reconnect;
-	psmouse->pktsize = etd->hw_version == 2 ? 6 : 4;
+	psmouse->pktsize = etd->hw_version > 1 ? 6 : 4;
 
 	return 0;
 
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index fabb2b99615..9e5f1aabea7 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -16,14 +16,17 @@
 /*
  * Command values for Synaptics style queries
  */
+#define ETP_FW_ID_QUERY			0x00
 #define ETP_FW_VERSION_QUERY		0x01
 #define ETP_CAPABILITIES_QUERY		0x02
+#define ETP_SAMPLE_QUERY		0x03
 
 /*
  * Command values for register reading or writing
  */
 #define ETP_REGISTER_READ		0x10
 #define ETP_REGISTER_WRITE		0x11
+#define ETP_REGISTER_READWRITE		0x00
 
 /*
  * Hardware version 2 custom PS/2 command value
@@ -66,16 +69,13 @@
 #define ETP_YMAX_V1			(384 - ETP_EDGE_FUZZ_V1)
 
 /*
- * It seems the resolution for hardware version 2 doubled.
- * Hence the X and Y ranges are doubled too.
- * The bezel around the pad also appears to be smaller
+ * The resolution for older v2 hardware doubled.
+ * (newer v2's firmware provides command so we can query)
  */
-#define ETP_EDGE_FUZZ_V2		8
-
-#define ETP_XMIN_V2			(   0 + ETP_EDGE_FUZZ_V2)
-#define ETP_XMAX_V2			(1152 - ETP_EDGE_FUZZ_V2)
-#define ETP_YMIN_V2			(   0 + ETP_EDGE_FUZZ_V2)
-#define ETP_YMAX_V2			( 768 - ETP_EDGE_FUZZ_V2)
+#define ETP_XMIN_V2			0
+#define ETP_XMAX_V2			1152
+#define ETP_YMIN_V2			0
+#define ETP_YMAX_V2			768
 
 #define ETP_PMIN_V2			0
 #define ETP_PMAX_V2			255
@@ -83,17 +83,37 @@
 #define ETP_WMAX_V2			15
 
 /*
- * For two finger touches the coordinate of each finger gets reported
- * separately but with reduced resolution.
+ * v3 hardware has 2 kinds of packet types,
+ * v4 hardware has 3.
+ */
+#define PACKET_UNKNOWN			0x01
+#define PACKET_DEBOUNCE			0x02
+#define PACKET_V3_HEAD			0x03
+#define PACKET_V3_TAIL			0x04
+#define PACKET_V4_HEAD			0x05
+#define PACKET_V4_MOTION		0x06
+#define PACKET_V4_STATUS		0x07
+
+/*
+ * track up to 5 fingers for v4 hardware
+ */
+#define ETP_MAX_FINGERS			5
+
+/*
+ * weight value for v4 hardware
  */
-#define ETP_2FT_FUZZ			4
+#define ETP_WEIGHT_VALUE		5
 
-#define ETP_2FT_XMIN			(  0 + ETP_2FT_FUZZ)
-#define ETP_2FT_XMAX			(288 - ETP_2FT_FUZZ)
-#define ETP_2FT_YMIN			(  0 + ETP_2FT_FUZZ)
-#define ETP_2FT_YMAX			(192 - ETP_2FT_FUZZ)
+/*
+ * The base position for one finger, v4 hardware
+ */
+struct finger_pos {
+	unsigned int x;
+	unsigned int y;
+};
 
 struct elantech_data {
+	unsigned char reg_07;
 	unsigned char reg_10;
 	unsigned char reg_11;
 	unsigned char reg_20;
@@ -104,13 +124,16 @@ struct elantech_data {
 	unsigned char reg_25;
 	unsigned char reg_26;
 	unsigned char debug;
-	unsigned char capabilities;
+	unsigned char capabilities[3];
 	bool paritycheck;
 	bool jumpy_cursor;
 	bool reports_pressure;
 	unsigned char hw_version;
 	unsigned int fw_version;
 	unsigned int single_finger_reports;
+	unsigned int y_max;
+	unsigned int width;
+	struct finger_pos mt[ETP_MAX_FINGERS];
 	unsigned char parity[256];
 };
 
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 4d17d9f3320..0470dd46b56 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -136,10 +136,10 @@ static int hgpk_discard_decay_hack(struct psmouse *psmouse, int x, int y)
 	/* discard if too big, or half that but > 4 times the prev delta */
 	if (avx > recalib_delta ||
 		(avx > recalib_delta / 2 && ((avx / 4) > priv->xlast))) {
-		hgpk_err(psmouse, "detected %dpx jump in x\n", x);
+		psmouse_warn(psmouse, "detected %dpx jump in x\n", x);
 		priv->xbigj = avx;
 	} else if (approx_half(avx, priv->xbigj)) {
-		hgpk_err(psmouse, "detected secondary %dpx jump in x\n", x);
+		psmouse_warn(psmouse, "detected secondary %dpx jump in x\n", x);
 		priv->xbigj = avx;
 		priv->xsaw_secondary++;
 	} else {
@@ -151,10 +151,10 @@ static int hgpk_discard_decay_hack(struct psmouse *psmouse, int x, int y)
 
 	if (avy > recalib_delta ||
 		(avy > recalib_delta / 2 && ((avy / 4) > priv->ylast))) {
-		hgpk_err(psmouse, "detected %dpx jump in y\n", y);
+		psmouse_warn(psmouse, "detected %dpx jump in y\n", y);
 		priv->ybigj = avy;
 	} else if (approx_half(avy, priv->ybigj)) {
-		hgpk_err(psmouse, "detected secondary %dpx jump in y\n", y);
+		psmouse_warn(psmouse, "detected secondary %dpx jump in y\n", y);
 		priv->ybigj = avy;
 		priv->ysaw_secondary++;
 	} else {
@@ -168,7 +168,7 @@ static int hgpk_discard_decay_hack(struct psmouse *psmouse, int x, int y)
 	priv->ylast = avy;
 
 	if (do_recal && jumpy_delay) {
-		hgpk_err(psmouse, "scheduling recalibration\n");
+		psmouse_warn(psmouse, "scheduling recalibration\n");
 		psmouse_queue_work(psmouse, &priv->recalib_wq,
 				msecs_to_jiffies(jumpy_delay));
 	}
@@ -260,8 +260,8 @@ static void hgpk_spewing_hack(struct psmouse *psmouse,
 		 * movement, it is probably a case of the user moving the
 		 * cursor very slowly across the screen. */
 		if (abs(priv->x_tally) < 3 && abs(priv->y_tally) < 3) {
-			hgpk_err(psmouse, "packet spew detected (%d,%d)\n",
-				 priv->x_tally, priv->y_tally);
+			psmouse_warn(psmouse, "packet spew detected (%d,%d)\n",
+				     priv->x_tally, priv->y_tally);
 			priv->spew_flag = RECALIBRATING;
 			psmouse_queue_work(psmouse, &priv->recalib_wq,
 					   msecs_to_jiffies(spew_delay));
@@ -333,12 +333,12 @@ static bool hgpk_is_byte_valid(struct psmouse *psmouse, unsigned char *packet)
 	}
 
 	if (!valid)
-		hgpk_dbg(psmouse,
-			 "bad data, mode %d (%d) %02x %02x %02x %02x %02x %02x\n",
-			 priv->mode, pktcnt,
-			 psmouse->packet[0], psmouse->packet[1],
-			 psmouse->packet[2], psmouse->packet[3],
-			 psmouse->packet[4], psmouse->packet[5]);
+		psmouse_dbg(psmouse,
+			    "bad data, mode %d (%d) %02x %02x %02x %02x %02x %02x\n",
+			    priv->mode, pktcnt,
+			    psmouse->packet[0], psmouse->packet[1],
+			    psmouse->packet[2], psmouse->packet[3],
+			    psmouse->packet[4], psmouse->packet[5]);
 
 	return valid;
 }
@@ -361,19 +361,20 @@ static void hgpk_process_advanced_packet(struct psmouse *psmouse)
 
 		input_report_abs(idev, ABS_PRESSURE, z);
 		if (tpdebug)
-			hgpk_dbg(psmouse, "pd=%d fd=%d z=%d",
-				 pt_down, finger_down, z);
+			psmouse_dbg(psmouse, "pd=%d fd=%d z=%d",
+				    pt_down, finger_down, z);
 	} else {
 		/*
 		 * PenTablet mode does not report pressure, so we don't
 		 * report it here
 		 */
 		if (tpdebug)
-			hgpk_dbg(psmouse, "pd=%d ", down);
+			psmouse_dbg(psmouse, "pd=%d ", down);
 	}
 
 	if (tpdebug)
-		hgpk_dbg(psmouse, "l=%d r=%d x=%d y=%d\n", left, right, x, y);
+		psmouse_dbg(psmouse, "l=%d r=%d x=%d y=%d\n",
+			    left, right, x, y);
 
 	input_report_key(idev, BTN_TOUCH, down);
 	input_report_key(idev, BTN_LEFT, left);
@@ -395,7 +396,7 @@ static void hgpk_process_advanced_packet(struct psmouse *psmouse)
 	if (x == priv->abs_x && y == priv->abs_y) {
 		if (++priv->dupe_count > SPEW_WATCH_COUNT) {
 			if (tpdebug)
-				hgpk_dbg(psmouse, "hard spew detected\n");
+				psmouse_dbg(psmouse, "hard spew detected\n");
 			priv->spew_flag = RECALIBRATING;
 			psmouse_queue_work(psmouse, &priv->recalib_wq,
 					   msecs_to_jiffies(spew_delay));
@@ -412,7 +413,7 @@ static void hgpk_process_advanced_packet(struct psmouse *psmouse)
 		int y_diff = priv->abs_y - y;
 		if (hgpk_discard_decay_hack(psmouse, x_diff, y_diff)) {
 			if (tpdebug)
-				hgpk_dbg(psmouse, "discarding\n");
+				psmouse_dbg(psmouse, "discarding\n");
 			goto done;
 		}
 		hgpk_spewing_hack(psmouse, left, right, x_diff, y_diff);
@@ -437,20 +438,21 @@ static void hgpk_process_simple_packet(struct psmouse *psmouse)
 	int y = ((packet[0] << 3) & 0x100) - packet[2];
 
 	if (packet[0] & 0xc0)
-		hgpk_dbg(psmouse,
-			 "overflow -- 0x%02x 0x%02x 0x%02x\n",
-			 packet[0], packet[1], packet[2]);
+		psmouse_dbg(psmouse,
+			    "overflow -- 0x%02x 0x%02x 0x%02x\n",
+			    packet[0], packet[1], packet[2]);
 
 	if (hgpk_discard_decay_hack(psmouse, x, y)) {
 		if (tpdebug)
-			hgpk_dbg(psmouse, "discarding\n");
+			psmouse_dbg(psmouse, "discarding\n");
 		return;
 	}
 
 	hgpk_spewing_hack(psmouse, left, right, x, y);
 
 	if (tpdebug)
-		hgpk_dbg(psmouse, "l=%d r=%d x=%d y=%d\n", left, right, x, y);
+		psmouse_dbg(psmouse, "l=%d r=%d x=%d y=%d\n",
+			    left, right, x, y);
 
 	input_report_key(dev, BTN_LEFT, left);
 	input_report_key(dev, BTN_RIGHT, right);
@@ -482,9 +484,8 @@ static psmouse_ret_t hgpk_process_byte(struct psmouse *psmouse)
 			 * ugh, got a packet inside our recalibration
 			 * window, schedule another recalibration.
 			 */
-			hgpk_dbg(psmouse,
-				 "packet inside calibration window, "
-				 "queueing another recalibration\n");
+			psmouse_dbg(psmouse,
+				    "packet inside calibration window, queueing another recalibration\n");
 			psmouse_queue_work(psmouse, &priv->recalib_wq,
 					msecs_to_jiffies(post_interrupt_delay));
 		}
@@ -628,7 +629,7 @@ static int hgpk_reset_device(struct psmouse *psmouse, bool recalibrate)
 
 	err = hgpk_select_mode(psmouse);
 	if (err) {
-		hgpk_err(psmouse, "failed to select mode\n");
+		psmouse_err(psmouse, "failed to select mode\n");
 		return err;
 	}
 
@@ -648,11 +649,11 @@ static int hgpk_force_recalibrate(struct psmouse *psmouse)
 		return 0;
 
 	if (!autorecal) {
-		hgpk_dbg(psmouse, "recalibrations disabled, ignoring\n");
+		psmouse_dbg(psmouse, "recalibration disabled, ignoring\n");
 		return 0;
 	}
 
-	hgpk_dbg(psmouse, "recalibrating touchpad..\n");
+	psmouse_dbg(psmouse, "recalibrating touchpad..\n");
 
 	/* we don't want to race with the irq handler, nor with resyncs */
 	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
@@ -675,7 +676,7 @@ static int hgpk_force_recalibrate(struct psmouse *psmouse)
 	psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
 
 	if (tpdebug)
-		hgpk_dbg(psmouse, "touchpad reactivated\n");
+		psmouse_dbg(psmouse, "touchpad reactivated\n");
 
 	/*
 	 * If we get packets right away after recalibrating, it's likely
@@ -727,16 +728,16 @@ static int hgpk_toggle_powersave(struct psmouse *psmouse, int enable)
 
 		err = hgpk_reset_device(psmouse, false);
 		if (err) {
-			hgpk_err(psmouse, "Failed to reset device!\n");
+			psmouse_err(psmouse, "Failed to reset device!\n");
 			return err;
 		}
 
 		/* should be all set, enable the touchpad */
 		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
 		psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
-		hgpk_dbg(psmouse, "Touchpad powered up.\n");
+		psmouse_dbg(psmouse, "Touchpad powered up.\n");
 	} else {
-		hgpk_dbg(psmouse, "Powering off touchpad.\n");
+		psmouse_dbg(psmouse, "Powering off touchpad.\n");
 
 		if (ps2_command(ps2dev, NULL, 0xec) ||
 		    ps2_command(ps2dev, NULL, 0xec) ||
@@ -923,7 +924,7 @@ static void hgpk_recalib_work(struct work_struct *work)
 	struct psmouse *psmouse = priv->psmouse;
 
 	if (hgpk_force_recalibrate(psmouse))
-		hgpk_err(psmouse, "recalibration failed!\n");
+		psmouse_err(psmouse, "recalibration failed!\n");
 }
 
 static int hgpk_register(struct psmouse *psmouse)
@@ -947,14 +948,15 @@ static int hgpk_register(struct psmouse *psmouse)
 	err = device_create_file(&psmouse->ps2dev.serio->dev,
 				 &psmouse_attr_powered.dattr);
 	if (err) {
-		hgpk_err(psmouse, "Failed creating 'powered' sysfs node\n");
+		psmouse_err(psmouse, "Failed creating 'powered' sysfs node\n");
 		return err;
 	}
 
 	err = device_create_file(&psmouse->ps2dev.serio->dev,
 				 &psmouse_attr_hgpk_mode.dattr);
 	if (err) {
-		hgpk_err(psmouse, "Failed creating 'hgpk_mode' sysfs node\n");
+		psmouse_err(psmouse,
+			    "Failed creating 'hgpk_mode' sysfs node\n");
 		goto err_remove_powered;
 	}
 
@@ -963,8 +965,8 @@ static int hgpk_register(struct psmouse *psmouse)
 		err = device_create_file(&psmouse->ps2dev.serio->dev,
 					 &psmouse_attr_recalibrate.dattr);
 		if (err) {
-			hgpk_err(psmouse,
-				"Failed creating 'recalibrate' sysfs node\n");
+			psmouse_err(psmouse,
+				    "Failed creating 'recalibrate' sysfs node\n");
 			goto err_remove_mode;
 		}
 	}
@@ -1027,13 +1029,13 @@ static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
 		return -EIO;
 	}
 
-	hgpk_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
+	psmouse_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
 
 	/* HGPK signature: 0x67, 0x00, 0x<model> */
 	if (param[0] != 0x67 || param[1] != 0x00)
 		return -ENODEV;
 
-	hgpk_info(psmouse, "OLPC touchpad revision 0x%x\n", param[2]);
+	psmouse_info(psmouse, "OLPC touchpad revision 0x%x\n", param[2]);
 
 	return param[2];
 }
diff --git a/drivers/input/mouse/hgpk.h b/drivers/input/mouse/hgpk.h
index 311c0e87fcb..dd686771cfe 100644
--- a/drivers/input/mouse/hgpk.h
+++ b/drivers/input/mouse/hgpk.h
@@ -46,17 +46,6 @@ struct hgpk_data {
 	int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
 };
 
-#define hgpk_dbg(psmouse, format, arg...)		\
-	dev_dbg(&(psmouse)->ps2dev.serio->dev, format, ## arg)
-#define hgpk_err(psmouse, format, arg...)		\
-	dev_err(&(psmouse)->ps2dev.serio->dev, format, ## arg)
-#define hgpk_info(psmouse, format, arg...)		\
-	dev_info(&(psmouse)->ps2dev.serio->dev, format, ## arg)
-#define hgpk_warn(psmouse, format, arg...)		\
-	dev_warn(&(psmouse)->ps2dev.serio->dev, format, ## arg)
-#define hgpk_notice(psmouse, format, arg...)		\
-	dev_notice(&(psmouse)->ps2dev.serio->dev, format, ## arg)
-
 #ifdef CONFIG_MOUSE_PS2_OLPC
 void hgpk_module_init(void);
 int hgpk_detect(struct psmouse *psmouse, bool set_properties);
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 83bcaba96b8..2c4db636de6 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -169,8 +169,8 @@ static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
 
 	if (relative_packet) {
 		if (!dev2)
-			printk(KERN_WARNING "lifebook.c: got relative packet "
-				"but no relative device set up\n");
+			psmouse_warn(psmouse,
+				     "got relative packet but no relative device set up\n");
 	} else {
 		if (lifebook_use_6byte_proto) {
 			input_report_abs(dev1, ABS_X,
@@ -212,7 +212,7 @@ static int lifebook_absolute_mode(struct psmouse *psmouse)
 
 	/*
 	 * Enable absolute output -- ps2_command fails always but if
-	 * you leave this call out the touchsreen will never send
+	 * you leave this call out the touchscreen will never send
 	 * absolute coordinates
 	 */
 	param = lifebook_use_6byte_proto ? 0x08 : 0x07;
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index c9983aee908..faac2c3bef7 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -82,11 +82,11 @@ static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse)
 			packet[0] = packet[2] | 0x08;
 			break;
 
-#ifdef DEBUG
 		default:
-			printk(KERN_WARNING "psmouse.c: Received PS2++ packet #%x, but don't know how to handle.\n",
-				(packet[1] >> 4) | (packet[0] & 0x30));
-#endif
+			psmouse_dbg(psmouse,
+				    "Received PS2++ packet #%x, but don't know how to handle.\n",
+				    (packet[1] >> 4) | (packet[0] & 0x30));
+			break;
 		}
 	} else {
 		/* Standard PS/2 motion data */
@@ -382,7 +382,7 @@ int ps2pp_init(struct psmouse *psmouse, bool set_properties)
 		}
 
 	} else {
-		printk(KERN_WARNING "logips2pp: Detected unknown logitech mouse model %d\n", model);
+		psmouse_warn(psmouse, "Detected unknown Logitech mouse model %d\n", model);
 	}
 
 	if (set_properties) {
@@ -400,9 +400,9 @@ int ps2pp_init(struct psmouse *psmouse, bool set_properties)
 				error = device_create_file(&psmouse->ps2dev.serio->dev,
 							   &psmouse_attr_smartscroll.dattr);
 				if (error) {
-					printk(KERN_ERR
-						"logips2pp.c: failed to create smartscroll "
-						"sysfs attribute, error: %d\n", error);
+					psmouse_err(psmouse,
+						    "failed to create smartscroll sysfs attribute, error: %d\n",
+						    error);
 					return -1;
 				}
 			}
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 3f74baee102..9f352fbd7b4 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -11,6 +11,9 @@
  * the Free Software Foundation.
  */
 
+#define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
+#define psmouse_fmt(fmt)	fmt
+
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -251,11 +254,14 @@ static int psmouse_handle_byte(struct psmouse *psmouse)
 	switch (rc) {
 	case PSMOUSE_BAD_DATA:
 		if (psmouse->state == PSMOUSE_ACTIVATED) {
-			printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
-				psmouse->name, psmouse->phys, psmouse->pktcnt);
+			psmouse_warn(psmouse,
+				     "%s at %s lost sync at byte %d\n",
+				     psmouse->name, psmouse->phys,
+				     psmouse->pktcnt);
 			if (++psmouse->out_of_sync_cnt == psmouse->resetafter) {
 				__psmouse_set_state(psmouse, PSMOUSE_IGNORE);
-				printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+				psmouse_notice(psmouse,
+						"issuing reconnect request\n");
 				serio_reconnect(psmouse->ps2dev.serio);
 				return -1;
 			}
@@ -267,8 +273,9 @@ static int psmouse_handle_byte(struct psmouse *psmouse)
 		psmouse->pktcnt = 0;
 		if (psmouse->out_of_sync_cnt) {
 			psmouse->out_of_sync_cnt = 0;
-			printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
-				psmouse->name, psmouse->phys);
+			psmouse_notice(psmouse,
+					"%s at %s - driver resynced.\n",
+					psmouse->name, psmouse->phys);
 		}
 		break;
 
@@ -295,9 +302,10 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		     ((flags & SERIO_PARITY) && !psmouse->ignore_parity))) {
 
 		if (psmouse->state == PSMOUSE_ACTIVATED)
-			printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
-				flags & SERIO_TIMEOUT ? " timeout" : "",
-				flags & SERIO_PARITY ? " bad parity" : "");
+			psmouse_warn(psmouse,
+				     "bad data from KBC -%s%s\n",
+				     flags & SERIO_TIMEOUT ? " timeout" : "",
+				     flags & SERIO_PARITY ? " bad parity" : "");
 		ps2_cmd_aborted(&psmouse->ps2dev);
 		goto out;
 	}
@@ -315,8 +323,8 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 
 	if (psmouse->state == PSMOUSE_ACTIVATED &&
 	    psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
-		printk(KERN_INFO "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
-		       psmouse->name, psmouse->phys, psmouse->pktcnt);
+		psmouse_info(psmouse, "%s at %s lost synchronization, throwing %d bytes away.\n",
+			     psmouse->name, psmouse->phys, psmouse->pktcnt);
 		psmouse->badbyte = psmouse->packet[0];
 		__psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
 		psmouse_queue_work(psmouse, &psmouse->resync_work, 0);
@@ -943,7 +951,8 @@ static int psmouse_probe(struct psmouse *psmouse)
  */
 
 	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
-		printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys);
+		psmouse_warn(psmouse, "Failed to reset mouse on %s\n",
+			     ps2dev->serio->phys);
 
 	return 0;
 }
@@ -1005,8 +1014,8 @@ static void psmouse_initialize(struct psmouse *psmouse)
 static void psmouse_activate(struct psmouse *psmouse)
 {
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
-		printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n",
-			psmouse->ps2dev.serio->phys);
+		psmouse_warn(psmouse, "Failed to enable mouse on %s\n",
+			     psmouse->ps2dev.serio->phys);
 
 	psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
 }
@@ -1020,14 +1029,14 @@ static void psmouse_activate(struct psmouse *psmouse)
 static void psmouse_deactivate(struct psmouse *psmouse)
 {
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
-		printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n",
-			psmouse->ps2dev.serio->phys);
+		psmouse_warn(psmouse, "Failed to deactivate mouse on %s\n",
+			     psmouse->ps2dev.serio->phys);
 
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 }
 
 /*
- * psmouse_poll() - default poll hanlder. Everyone except for ALPS uses it.
+ * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
  */
 
 static int psmouse_poll(struct psmouse *psmouse)
@@ -1115,14 +1124,15 @@ static void psmouse_resync(struct work_struct *work)
 	}
 
 	if (!enabled) {
-		printk(KERN_WARNING "psmouse.c: failed to re-enable mouse on %s\n",
-			psmouse->ps2dev.serio->phys);
+		psmouse_warn(psmouse, "failed to re-enable mouse on %s\n",
+			     psmouse->ps2dev.serio->phys);
 		failed = true;
 	}
 
 	if (failed) {
 		psmouse_set_state(psmouse, PSMOUSE_IGNORE);
-		printk(KERN_INFO "psmouse.c: resync failed, issuing reconnect request\n");
+		psmouse_info(psmouse,
+			     "resync failed, issuing reconnect request\n");
 		serio_reconnect(serio);
 	} else
 		psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
@@ -1155,8 +1165,8 @@ static void psmouse_cleanup(struct serio *serio)
 	 * Disable stream mode so cleanup routine can proceed undisturbed.
 	 */
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
-		printk(KERN_WARNING "psmouse.c: Failed to disable mouse on %s\n",
-			psmouse->ps2dev.serio->phys);
+		psmouse_warn(psmouse, "Failed to disable mouse on %s\n",
+			     psmouse->ps2dev.serio->phys);
 
 	if (psmouse->cleanup)
 		psmouse->cleanup(psmouse);
@@ -1400,7 +1410,8 @@ static int psmouse_reconnect(struct serio *serio)
 	int rc = -1;
 
 	if (!drv || !psmouse) {
-		printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
+		psmouse_dbg(psmouse,
+			    "reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
 
@@ -1427,8 +1438,9 @@ static int psmouse_reconnect(struct serio *serio)
 			goto out;
 	}
 
-	/* ok, the device type (and capabilities) match the old one,
-	 * we can continue using it, complete intialization
+	/*
+	 * OK, the device type (and capabilities) match the old one,
+	 * we can continue using it, complete initialization
 	 */
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 
@@ -1586,9 +1598,8 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
 
 	while (!list_empty(&serio->children)) {
 		if (++retry > 3) {
-			printk(KERN_WARNING
-				"psmouse: failed to destroy children ports, "
-				"protocol change aborted.\n");
+			psmouse_warn(psmouse,
+				     "failed to destroy children ports, protocol change aborted.\n");
 			input_free_device(new_dev);
 			return -EIO;
 		}
@@ -1715,7 +1726,7 @@ static int __init psmouse_init(void)
 
 	kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
 	if (!kpsmoused_wq) {
-		printk(KERN_ERR "psmouse: failed to create kpsmoused workqueue\n");
+		pr_err("failed to create kpsmoused workqueue\n");
 		return -ENOMEM;
 	}
 
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 593e910bfc7..9b84b0c4e37 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -150,4 +150,29 @@ static struct psmouse_attribute psmouse_attr_##_name = {			\
 	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\
 	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
 
+#ifndef psmouse_fmt
+#define psmouse_fmt(fmt)	KBUILD_BASENAME ": " fmt
+#endif
+
+#define psmouse_dbg(psmouse, format, ...)		\
+	dev_dbg(&(psmouse)->ps2dev.serio->dev,		\
+		psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_info(psmouse, format, ...)		\
+	dev_info(&(psmouse)->ps2dev.serio->dev,		\
+		 psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_warn(psmouse, format, ...)		\
+	dev_warn(&(psmouse)->ps2dev.serio->dev,		\
+		 psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_err(psmouse, format, ...)		\
+	dev_err(&(psmouse)->ps2dev.serio->dev,		\
+		psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_notice(psmouse, format, ...)		\
+	dev_notice(&(psmouse)->ps2dev.serio->dev,	\
+		   psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_printk(level, psmouse, format, ...)	\
+	dev_printk(level,				\
+		   &(psmouse)->ps2dev.serio->dev,	\
+		   psmouse_fmt(format), ##__VA_ARGS__)
+
+
 #endif /* _PSMOUSE_H */
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index 6c5d84fcdea..ee3b0ca9d59 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -183,7 +183,7 @@ static int __devinit pxa930_trkball_probe(struct platform_device *pdev)
 	/* held the module in reset, will be enabled in open() */
 	pxa930_trkball_disable(trkball);
 
-	error = request_irq(irq, pxa930_trkball_interrupt, IRQF_DISABLED,
+	error = request_irq(irq, pxa930_trkball_interrupt, 0,
 			    pdev->name, trkball);
 	if (error) {
 		dev_err(&pdev->dev, "failed to request irq: %d\n", error);
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index 2fc887a5106..c5b12d2e955 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -607,11 +607,12 @@ static void fsp_packet_debug(unsigned char packet[])
 
 	ps2_packet_cnt++;
 	jiffies_msec = jiffies_to_msecs(jiffies);
-	printk(KERN_DEBUG "%08dms PS/2 packets: %02x, %02x, %02x, %02x\n",
-		jiffies_msec, packet[0], packet[1], packet[2], packet[3]);
+	psmouse_dbg(psmouse,
+		    "%08dms PS/2 packets: %02x, %02x, %02x, %02x\n",
+		    jiffies_msec, packet[0], packet[1], packet[2], packet[3]);
 
 	if (jiffies_msec - ps2_last_second > 1000) {
-		printk(KERN_DEBUG "PS/2 packets/sec = %d\n", ps2_packet_cnt);
+		psmouse_dbg(psmouse, "PS/2 packets/sec = %d\n", ps2_packet_cnt);
 		ps2_packet_cnt = 0;
 		ps2_last_second = jiffies_msec;
 	}
@@ -820,9 +821,9 @@ int fsp_init(struct psmouse *psmouse)
 		return -ENODEV;
 	}
 
-	printk(KERN_INFO
-		"Finger Sensing Pad, hw: %d.%d.%d, sw: %s, buttons: %d\n",
-		ver >> 4, ver & 0x0F, rev, fsp_drv_ver, buttons & 7);
+	psmouse_info(psmouse,
+		     "Finger Sensing Pad, hw: %d.%d.%d, sw: %s, buttons: %d\n",
+		     ver >> 4, ver & 0x0F, rev, fsp_drv_ver, buttons & 7);
 
 	psmouse->private = priv = kzalloc(sizeof(struct fsp_data), GFP_KERNEL);
 	if (!priv)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 5538fc657af..c080b828e5d 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -44,6 +44,16 @@
 #define YMIN_NOMINAL 1408
 #define YMAX_NOMINAL 4448
 
+/*
+ * Synaptics touchpads report the y coordinate from bottom to top, which is
+ * opposite from what userspace expects.
+ * This function is used to invert y before reporting.
+ */
+static int synaptics_invert_y(int y)
+{
+	return YMAX_NOMINAL + YMIN_NOMINAL - y;
+}
+
 
 /*****************************************************************************
  *	Stuff we need even when we do not want native Synaptics support
@@ -157,8 +167,8 @@ static int synaptics_capability(struct psmouse *psmouse)
 
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
-			printk(KERN_ERR "Synaptics claims to have extended capabilities,"
-			       " but I'm not able to read them.\n");
+			psmouse_warn(psmouse,
+				     "device claims to have extended capabilities, but I'm not able to read them.\n");
 		} else {
 			priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
 
@@ -173,8 +183,8 @@ static int synaptics_capability(struct psmouse *psmouse)
 
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
-			printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
-			       " but I'm not able to read it.\n");
+			psmouse_warn(psmouse,
+				     "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
 		} else {
 			priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
 		}
@@ -222,8 +232,8 @@ static int synaptics_resolution(struct psmouse *psmouse)
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
 	    SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
-			printk(KERN_ERR "Synaptics claims to have max coordinates"
-			       " query, but I'm not able to read it.\n");
+			psmouse_warn(psmouse,
+				     "device claims to have max coordinates query, but I'm not able to read it.\n");
 		} else {
 			priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
@@ -233,8 +243,8 @@ static int synaptics_resolution(struct psmouse *psmouse)
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
 	    SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
-			printk(KERN_ERR "Synaptics claims to have min coordinates"
-			       " query, but I'm not able to read it.\n");
+			psmouse_warn(psmouse,
+				     "device claims to have min coordinates query, but I'm not able to read it.\n");
 		} else {
 			priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
@@ -294,7 +304,8 @@ static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
 	static unsigned char param = 0xc8;
 	struct synaptics_data *priv = psmouse->private;
 
-	if (!SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
+	if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+			SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
 		return 0;
 
 	if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
@@ -377,7 +388,8 @@ static void synaptics_pt_activate(struct psmouse *psmouse)
 			priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
 
 		if (synaptics_mode_cmd(psmouse, priv->mode))
-			printk(KERN_INFO "synaptics: failed to switch guest protocol\n");
+			psmouse_warn(psmouse,
+				     "failed to switch guest protocol\n");
 	}
 }
 
@@ -387,7 +399,8 @@ static void synaptics_pt_create(struct psmouse *psmouse)
 
 	serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
 	if (!serio) {
-		printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
+		psmouse_err(psmouse,
+			    "not enough memory for pass-through port\n");
 		return;
 	}
 
@@ -401,7 +414,8 @@ static void synaptics_pt_create(struct psmouse *psmouse)
 
 	psmouse->pt_activate = synaptics_pt_activate;
 
-	printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys);
+	psmouse_info(psmouse, "serio: %s port at %s\n",
+		     serio->name, psmouse->phys);
 	serio_register_port(serio);
 }
 
@@ -409,6 +423,44 @@ static void synaptics_pt_create(struct psmouse *psmouse)
  *	Functions to interpret the absolute mode packets
  ****************************************************************************/
 
+static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count,
+				   int sgm, int agm)
+{
+	state->count = count;
+	state->sgm = sgm;
+	state->agm = agm;
+}
+
+static void synaptics_parse_agm(const unsigned char buf[],
+				struct synaptics_data *priv,
+				struct synaptics_hw_state *hw)
+{
+	struct synaptics_hw_state *agm = &priv->agm;
+	int agm_packet_type;
+
+	agm_packet_type = (buf[5] & 0x30) >> 4;
+	switch (agm_packet_type) {
+	case 1:
+		/* Gesture packet: (x, y, z) half resolution */
+		agm->w = hw->w;
+		agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
+		agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
+		agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
+		break;
+
+	case 2:
+		/* AGM-CONTACT packet: (count, sgm, agm) */
+		synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]);
+		break;
+
+	default:
+		break;
+	}
+
+	/* Record that at least one AGM has been received since last SGM */
+	priv->agm_pending = true;
+}
+
 static int synaptics_parse_hw_state(const unsigned char buf[],
 				    struct synaptics_data *priv,
 				    struct synaptics_hw_state *hw)
@@ -442,11 +494,10 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
 			hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
 		}
 
-		if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) && hw->w == 2) {
-			/* Gesture packet: (x, y, z) at half resolution */
-			priv->mt.x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
-			priv->mt.y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
-			priv->mt.z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
+		if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+			SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
+		    hw->w == 2) {
+			synaptics_parse_agm(buf, priv, hw);
 			return 1;
 		}
 
@@ -502,8 +553,7 @@ static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
 	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
 	if (active) {
 		input_report_abs(dev, ABS_MT_POSITION_X, x);
-		input_report_abs(dev, ABS_MT_POSITION_Y,
-				 YMAX_NOMINAL + YMIN_NOMINAL - y);
+		input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
 	}
 }
 
@@ -526,6 +576,388 @@ static void synaptics_report_semi_mt_data(struct input_dev *dev,
 	}
 }
 
+static void synaptics_report_buttons(struct psmouse *psmouse,
+				     const struct synaptics_hw_state *hw)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct synaptics_data *priv = psmouse->private;
+	int i;
+
+	input_report_key(dev, BTN_LEFT, hw->left);
+	input_report_key(dev, BTN_RIGHT, hw->right);
+
+	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+		input_report_key(dev, BTN_MIDDLE, hw->middle);
+
+	if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+		input_report_key(dev, BTN_FORWARD, hw->up);
+		input_report_key(dev, BTN_BACK, hw->down);
+	}
+
+	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+		input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
+}
+
+static void synaptics_report_slot(struct input_dev *dev, int slot,
+				  const struct synaptics_hw_state *hw)
+{
+	input_mt_slot(dev, slot);
+	input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL));
+	if (!hw)
+		return;
+
+	input_report_abs(dev, ABS_MT_POSITION_X, hw->x);
+	input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y));
+	input_report_abs(dev, ABS_MT_PRESSURE, hw->z);
+}
+
+static void synaptics_report_mt_data(struct psmouse *psmouse,
+				     struct synaptics_mt_state *mt_state,
+				     const struct synaptics_hw_state *sgm)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct synaptics_data *priv = psmouse->private;
+	struct synaptics_hw_state *agm = &priv->agm;
+	struct synaptics_mt_state *old = &priv->mt_state;
+
+	switch (mt_state->count) {
+	case 0:
+		synaptics_report_slot(dev, 0, NULL);
+		synaptics_report_slot(dev, 1, NULL);
+		break;
+	case 1:
+		if (mt_state->sgm == -1) {
+			synaptics_report_slot(dev, 0, NULL);
+			synaptics_report_slot(dev, 1, NULL);
+		} else if (mt_state->sgm == 0) {
+			synaptics_report_slot(dev, 0, sgm);
+			synaptics_report_slot(dev, 1, NULL);
+		} else {
+			synaptics_report_slot(dev, 0, NULL);
+			synaptics_report_slot(dev, 1, sgm);
+		}
+		break;
+	default:
+		/*
+		 * If the finger slot contained in SGM is valid, and either
+		 * hasn't changed, or is new, then report SGM in MTB slot 0.
+		 * Otherwise, empty MTB slot 0.
+		 */
+		if (mt_state->sgm != -1 &&
+		    (mt_state->sgm == old->sgm || old->sgm == -1))
+			synaptics_report_slot(dev, 0, sgm);
+		else
+			synaptics_report_slot(dev, 0, NULL);
+
+		/*
+		 * If the finger slot contained in AGM is valid, and either
+		 * hasn't changed, or is new, then report AGM in MTB slot 1.
+		 * Otherwise, empty MTB slot 1.
+		 */
+		if (mt_state->agm != -1 &&
+		    (mt_state->agm == old->agm || old->agm == -1))
+			synaptics_report_slot(dev, 1, agm);
+		else
+			synaptics_report_slot(dev, 1, NULL);
+		break;
+	}
+
+	/* Don't use active slot count to generate BTN_TOOL events. */
+	input_mt_report_pointer_emulation(dev, false);
+
+	/* Send the number of fingers reported by touchpad itself. */
+	input_mt_report_finger_count(dev, mt_state->count);
+
+	synaptics_report_buttons(psmouse, sgm);
+
+	input_sync(dev);
+}
+
+/* Handle case where mt_state->count = 0 */
+static void synaptics_image_sensor_0f(struct synaptics_data *priv,
+				      struct synaptics_mt_state *mt_state)
+{
+	synaptics_mt_state_set(mt_state, 0, -1, -1);
+	priv->mt_state_lost = false;
+}
+
+/* Handle case where mt_state->count = 1 */
+static void synaptics_image_sensor_1f(struct synaptics_data *priv,
+				      struct synaptics_mt_state *mt_state)
+{
+	struct synaptics_hw_state *agm = &priv->agm;
+	struct synaptics_mt_state *old = &priv->mt_state;
+
+	/*
+	 * If the last AGM was (0,0,0), and there is only one finger left,
+	 * then we absolutely know that SGM contains slot 0, and all other
+	 * fingers have been removed.
+	 */
+	if (priv->agm_pending && agm->z == 0) {
+		synaptics_mt_state_set(mt_state, 1, 0, -1);
+		priv->mt_state_lost = false;
+		return;
+	}
+
+	switch (old->count) {
+	case 0:
+		synaptics_mt_state_set(mt_state, 1, 0, -1);
+		break;
+	case 1:
+		/*
+		 * If mt_state_lost, then the previous transition was 3->1,
+		 * and SGM now contains either slot 0 or 1, but we don't know
+		 * which.  So, we just assume that the SGM now contains slot 1.
+		 *
+		 * If pending AGM and either:
+		 *   (a) the previous SGM slot contains slot 0, or
+		 *   (b) there was no SGM slot
+		 * then, the SGM now contains slot 1
+		 *
+		 * Case (a) happens with very rapid "drum roll" gestures, where
+		 * slot 0 finger is lifted and a new slot 1 finger touches
+		 * within one reporting interval.
+		 *
+		 * Case (b) happens if initially two or more fingers tap
+		 * briefly, and all but one lift before the end of the first
+		 * reporting interval.
+		 *
+		 * (In both these cases, slot 0 will becomes empty, so SGM
+		 * contains slot 1 with the new finger)
+		 *
+		 * Else, if there was no previous SGM, it now contains slot 0.
+		 *
+		 * Otherwise, SGM still contains the same slot.
+		 */
+		if (priv->mt_state_lost ||
+		    (priv->agm_pending && old->sgm <= 0))
+			synaptics_mt_state_set(mt_state, 1, 1, -1);
+		else if (old->sgm == -1)
+			synaptics_mt_state_set(mt_state, 1, 0, -1);
+		break;
+	case 2:
+		/*
+		 * If mt_state_lost, we don't know which finger SGM contains.
+		 *
+		 * So, report 1 finger, but with both slots empty.
+		 * We will use slot 1 on subsequent 1->1
+		 */
+		if (priv->mt_state_lost) {
+			synaptics_mt_state_set(mt_state, 1, -1, -1);
+			break;
+		}
+		/*
+		 * Since the last AGM was NOT (0,0,0), it was the finger in
+		 * slot 0 that has been removed.
+		 * So, SGM now contains previous AGM's slot, and AGM is now
+		 * empty.
+		 */
+		synaptics_mt_state_set(mt_state, 1, old->agm, -1);
+		break;
+	case 3:
+		/*
+		 * Since last AGM was not (0,0,0), we don't know which finger
+		 * is left.
+		 *
+		 * So, report 1 finger, but with both slots empty.
+		 * We will use slot 1 on subsequent 1->1
+		 */
+		synaptics_mt_state_set(mt_state, 1, -1, -1);
+		priv->mt_state_lost = true;
+		break;
+	case 4:
+	case 5:
+		/* mt_state was updated by AGM-CONTACT packet */
+		break;
+	}
+}
+
+/* Handle case where mt_state->count = 2 */
+static void synaptics_image_sensor_2f(struct synaptics_data *priv,
+				      struct synaptics_mt_state *mt_state)
+{
+	struct synaptics_mt_state *old = &priv->mt_state;
+
+	switch (old->count) {
+	case 0:
+		synaptics_mt_state_set(mt_state, 2, 0, 1);
+		break;
+	case 1:
+		/*
+		 * If previous SGM contained slot 1 or higher, SGM now contains
+		 * slot 0 (the newly touching finger) and AGM contains SGM's
+		 * previous slot.
+		 *
+		 * Otherwise, SGM still contains slot 0 and AGM now contains
+		 * slot 1.
+		 */
+		if (old->sgm >= 1)
+			synaptics_mt_state_set(mt_state, 2, 0, old->sgm);
+		else
+			synaptics_mt_state_set(mt_state, 2, 0, 1);
+		break;
+	case 2:
+		/*
+		 * If mt_state_lost, SGM now contains either finger 1 or 2, but
+		 * we don't know which.
+		 * So, we just assume that the SGM contains slot 0 and AGM 1.
+		 */
+		if (priv->mt_state_lost)
+			synaptics_mt_state_set(mt_state, 2, 0, 1);
+		/*
+		 * Otherwise, use the same mt_state, since it either hasn't
+		 * changed, or was updated by a recently received AGM-CONTACT
+		 * packet.
+		 */
+		break;
+	case 3:
+		/*
+		 * 3->2 transitions have two unsolvable problems:
+		 *  1) no indication is given which finger was removed
+		 *  2) no way to tell if agm packet was for finger 3
+		 *     before 3->2, or finger 2 after 3->2.
+		 *
+		 * So, report 2 fingers, but empty all slots.
+		 * We will guess slots [0,1] on subsequent 2->2.
+		 */
+		synaptics_mt_state_set(mt_state, 2, -1, -1);
+		priv->mt_state_lost = true;
+		break;
+	case 4:
+	case 5:
+		/* mt_state was updated by AGM-CONTACT packet */
+		break;
+	}
+}
+
+/* Handle case where mt_state->count = 3 */
+static void synaptics_image_sensor_3f(struct synaptics_data *priv,
+				      struct synaptics_mt_state *mt_state)
+{
+	struct synaptics_mt_state *old = &priv->mt_state;
+
+	switch (old->count) {
+	case 0:
+		synaptics_mt_state_set(mt_state, 3, 0, 2);
+		break;
+	case 1:
+		/*
+		 * If previous SGM contained slot 2 or higher, SGM now contains
+		 * slot 0 (one of the newly touching fingers) and AGM contains
+		 * SGM's previous slot.
+		 *
+		 * Otherwise, SGM now contains slot 0 and AGM contains slot 2.
+		 */
+		if (old->sgm >= 2)
+			synaptics_mt_state_set(mt_state, 3, 0, old->sgm);
+		else
+			synaptics_mt_state_set(mt_state, 3, 0, 2);
+		break;
+	case 2:
+		/*
+		 * If the AGM previously contained slot 3 or higher, then the
+		 * newly touching finger is in the lowest available slot.
+		 *
+		 * If SGM was previously 1 or higher, then the new SGM is
+		 * now slot 0 (with a new finger), otherwise, the new finger
+		 * is now in a hidden slot between 0 and AGM's slot.
+		 *
+		 * In all such cases, the SGM now contains slot 0, and the AGM
+		 * continues to contain the same slot as before.
+		 */
+		if (old->agm >= 3) {
+			synaptics_mt_state_set(mt_state, 3, 0, old->agm);
+			break;
+		}
+
+		/*
+		 * After some 3->1 and all 3->2 transitions, we lose track
+		 * of which slot is reported by SGM and AGM.
+		 *
+		 * For 2->3 in this state, report 3 fingers, but empty all
+		 * slots, and we will guess (0,2) on a subsequent 0->3.
+		 *
+		 * To userspace, the resulting transition will look like:
+		 *    2:[0,1] -> 3:[-1,-1] -> 3:[0,2]
+		 */
+		if (priv->mt_state_lost) {
+			synaptics_mt_state_set(mt_state, 3, -1, -1);
+			break;
+		}
+
+		/*
+		 * If the (SGM,AGM) really previously contained slots (0, 1),
+		 * then we cannot know what slot was just reported by the AGM,
+		 * because the 2->3 transition can occur either before or after
+		 * the AGM packet. Thus, this most recent AGM could contain
+		 * either the same old slot 1 or the new slot 2.
+		 * Subsequent AGMs will be reporting slot 2.
+		 *
+		 * To userspace, the resulting transition will look like:
+		 *    2:[0,1] -> 3:[0,-1] -> 3:[0,2]
+		 */
+		synaptics_mt_state_set(mt_state, 3, 0, -1);
+		break;
+	case 3:
+		/*
+		 * If, for whatever reason, the previous agm was invalid,
+		 * Assume SGM now contains slot 0, AGM now contains slot 2.
+		 */
+		if (old->agm <= 2)
+			synaptics_mt_state_set(mt_state, 3, 0, 2);
+		/*
+		 * mt_state either hasn't changed, or was updated by a recently
+		 * received AGM-CONTACT packet.
+		 */
+		break;
+
+	case 4:
+	case 5:
+		/* mt_state was updated by AGM-CONTACT packet */
+		break;
+	}
+}
+
+/* Handle case where mt_state->count = 4, or = 5 */
+static void synaptics_image_sensor_45f(struct synaptics_data *priv,
+				       struct synaptics_mt_state *mt_state)
+{
+	/* mt_state was updated correctly by AGM-CONTACT packet */
+	priv->mt_state_lost = false;
+}
+
+static void synaptics_image_sensor_process(struct psmouse *psmouse,
+					   struct synaptics_hw_state *sgm)
+{
+	struct synaptics_data *priv = psmouse->private;
+	struct synaptics_hw_state *agm = &priv->agm;
+	struct synaptics_mt_state mt_state;
+
+	/* Initialize using current mt_state (as updated by last agm) */
+	mt_state = agm->mt_state;
+
+	/*
+	 * Update mt_state using the new finger count and current mt_state.
+	 */
+	if (sgm->z == 0)
+		synaptics_image_sensor_0f(priv, &mt_state);
+	else if (sgm->w >= 4)
+		synaptics_image_sensor_1f(priv, &mt_state);
+	else if (sgm->w == 0)
+		synaptics_image_sensor_2f(priv, &mt_state);
+	else if (sgm->w == 1 && mt_state.count <= 3)
+		synaptics_image_sensor_3f(priv, &mt_state);
+	else
+		synaptics_image_sensor_45f(priv, &mt_state);
+
+	/* Send resulting input events to user space */
+	synaptics_report_mt_data(psmouse, &mt_state, sgm);
+
+	/* Store updated mt_state */
+	priv->mt_state = agm->mt_state = mt_state;
+	priv->agm_pending = false;
+}
+
 /*
  *  called for each full received packet from the touchpad
  */
@@ -536,11 +968,15 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 	struct synaptics_hw_state hw;
 	int num_fingers;
 	int finger_width;
-	int i;
 
 	if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
 		return;
 
+	if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+		synaptics_image_sensor_process(psmouse, &hw);
+		return;
+	}
+
 	if (hw.scroll) {
 		priv->scroll += hw.scroll;
 
@@ -586,7 +1022,8 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 	}
 
 	if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
-		synaptics_report_semi_mt_data(dev, &hw, &priv->mt, num_fingers);
+		synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
+					      num_fingers);
 
 	/* Post events
 	 * BTN_TOUCH has to be first as mousedev relies on it when doing
@@ -597,7 +1034,7 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 
 	if (num_fingers > 0) {
 		input_report_abs(dev, ABS_X, hw.x);
-		input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y);
+		input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
 	}
 	input_report_abs(dev, ABS_PRESSURE, hw.z);
 
@@ -605,35 +1042,25 @@ static void synaptics_process_packet(struct psmouse *psmouse)
 		input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
 
 	input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
-	input_report_key(dev, BTN_LEFT, hw.left);
-	input_report_key(dev, BTN_RIGHT, hw.right);
-
 	if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
 		input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
 		input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
 	}
 
-	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
-		input_report_key(dev, BTN_MIDDLE, hw.middle);
-
-	if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
-		input_report_key(dev, BTN_FORWARD, hw.up);
-		input_report_key(dev, BTN_BACK, hw.down);
-	}
-
-	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
-		input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
+	synaptics_report_buttons(psmouse, &hw);
 
 	input_sync(dev);
 }
 
-static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
+static int synaptics_validate_byte(struct psmouse *psmouse,
+				   int idx, unsigned char pkt_type)
 {
 	static const unsigned char newabs_mask[]	= { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
 	static const unsigned char newabs_rel_mask[]	= { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
 	static const unsigned char newabs_rslt[]	= { 0x80, 0x00, 0x00, 0xC0, 0x00 };
 	static const unsigned char oldabs_mask[]	= { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
 	static const unsigned char oldabs_rslt[]	= { 0xC0, 0x00, 0x00, 0x80, 0x00 };
+	const char *packet = psmouse->packet;
 
 	if (idx < 0 || idx > 4)
 		return 0;
@@ -651,7 +1078,7 @@ static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned cha
 		return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
 
 	default:
-		printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
+		psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
 		return 0;
 	}
 }
@@ -661,8 +1088,8 @@ static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
 	int i;
 
 	for (i = 0; i < 5; i++)
-		if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) {
-			printk(KERN_INFO "synaptics: using relaxed packet validation\n");
+		if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
+			psmouse_info(psmouse, "using relaxed packet validation\n");
 			return SYN_NEWABS_RELAXED;
 		}
 
@@ -687,46 +1114,56 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
 		return PSMOUSE_FULL_PACKET;
 	}
 
-	return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
+	return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
 		PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
 }
 
 /*****************************************************************************
  *	Driver initialization/cleanup functions
  ****************************************************************************/
-static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
+static void set_abs_position_params(struct input_dev *dev,
+				    struct synaptics_data *priv, int x_code,
+				    int y_code)
 {
-	int i;
+	int x_min = priv->x_min ?: XMIN_NOMINAL;
+	int x_max = priv->x_max ?: XMAX_NOMINAL;
+	int y_min = priv->y_min ?: YMIN_NOMINAL;
+	int y_max = priv->y_max ?: YMAX_NOMINAL;
 	int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
 			SYN_REDUCED_FILTER_FUZZ : 0;
 
+	input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
+	input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
+	input_abs_set_res(dev, x_code, priv->x_res);
+	input_abs_set_res(dev, y_code, priv->y_res);
+}
+
+static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
+{
+	int i;
+
 	__set_bit(INPUT_PROP_POINTER, dev->propbit);
 
 	__set_bit(EV_ABS, dev->evbit);
-	input_set_abs_params(dev, ABS_X,
-			     priv->x_min ?: XMIN_NOMINAL,
-			     priv->x_max ?: XMAX_NOMINAL,
-			     fuzz, 0);
-	input_set_abs_params(dev, ABS_Y,
-			     priv->y_min ?: YMIN_NOMINAL,
-			     priv->y_max ?: YMAX_NOMINAL,
-			     fuzz, 0);
+	set_abs_position_params(dev, priv, ABS_X, ABS_Y);
 	input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
 
-	if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
+	if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+		input_mt_init_slots(dev, 2);
+		set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
+					ABS_MT_POSITION_Y);
+		/* Image sensors can report per-contact pressure */
+		input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+
+		/* Image sensors can signal 4 and 5 finger clicks */
+		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+		__set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
+	} else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
+		/* Non-image sensors with AGM use semi-mt */
 		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
 		input_mt_init_slots(dev, 2);
-		input_set_abs_params(dev, ABS_MT_POSITION_X,
-				     priv->x_min ?: XMIN_NOMINAL,
-				     priv->x_max ?: XMAX_NOMINAL,
-				     fuzz, 0);
-		input_set_abs_params(dev, ABS_MT_POSITION_Y,
-				     priv->y_min ?: YMIN_NOMINAL,
-				     priv->y_max ?: YMAX_NOMINAL,
-				     fuzz, 0);
-
-		input_abs_set_res(dev, ABS_MT_POSITION_X, priv->x_res);
-		input_abs_set_res(dev, ABS_MT_POSITION_Y, priv->y_res);
+		set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
+					ABS_MT_POSITION_Y);
 	}
 
 	if (SYN_CAP_PALMDETECT(priv->capabilities))
@@ -759,9 +1196,6 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	__clear_bit(REL_X, dev->relbit);
 	__clear_bit(REL_Y, dev->relbit);
 
-	input_abs_set_res(dev, ABS_X, priv->x_res);
-	input_abs_set_res(dev, ABS_Y, priv->y_res);
-
 	if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
 		__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
 		/* Clickpads report only left button */
@@ -793,21 +1227,21 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 		return -1;
 
 	if (retry > 1)
-		printk(KERN_DEBUG "Synaptics reconnected after %d tries\n",
-			retry);
+		psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
 
 	if (synaptics_query_hardware(psmouse)) {
-		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
+		psmouse_err(psmouse, "Unable to query device.\n");
 		return -1;
 	}
 
 	if (synaptics_set_absolute_mode(psmouse)) {
-		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
+		psmouse_err(psmouse, "Unable to initialize device.\n");
 		return -1;
 	}
 
 	if (synaptics_set_advanced_gesture_mode(psmouse)) {
-		printk(KERN_ERR "Advanced gesture mode reconnect failed.\n");
+		psmouse_err(psmouse,
+			    "Advanced gesture mode reconnect failed.\n");
 		return -1;
 	}
 
@@ -815,12 +1249,12 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 	    old_priv.model_id != priv->model_id ||
 	    old_priv.capabilities != priv->capabilities ||
 	    old_priv.ext_cap != priv->ext_cap) {
-		printk(KERN_ERR "Synaptics hardware appears to be different: "
-			"id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
-			old_priv.identity, priv->identity,
-			old_priv.model_id, priv->model_id,
-			old_priv.capabilities, priv->capabilities,
-			old_priv.ext_cap, priv->ext_cap);
+		psmouse_err(psmouse,
+			    "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
+			    old_priv.identity, priv->identity,
+			    old_priv.model_id, priv->model_id,
+			    old_priv.capabilities, priv->capabilities,
+			    old_priv.ext_cap, priv->ext_cap);
 		return -1;
 	}
 
@@ -901,7 +1335,8 @@ int synaptics_init(struct psmouse *psmouse)
 	 * just fine.
 	 */
 	if (broken_olpc_ec) {
-		printk(KERN_INFO "synaptics: OLPC XO detected, not enabling Synaptics protocol.\n");
+		psmouse_info(psmouse,
+			     "OLPC XO detected, not enabling Synaptics protocol.\n");
 		return -ENODEV;
 	}
 
@@ -912,26 +1347,28 @@ int synaptics_init(struct psmouse *psmouse)
 	psmouse_reset(psmouse);
 
 	if (synaptics_query_hardware(psmouse)) {
-		printk(KERN_ERR "Unable to query Synaptics hardware.\n");
+		psmouse_err(psmouse, "Unable to query device.\n");
 		goto init_fail;
 	}
 
 	if (synaptics_set_absolute_mode(psmouse)) {
-		printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
+		psmouse_err(psmouse, "Unable to initialize device.\n");
 		goto init_fail;
 	}
 
 	if (synaptics_set_advanced_gesture_mode(psmouse)) {
-		printk(KERN_ERR "Advanced gesture mode init failed.\n");
+		psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
 		goto init_fail;
 	}
 
 	priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
 
-	printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
-		SYN_ID_MODEL(priv->identity),
-		SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
-		priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
+	psmouse_info(psmouse,
+		     "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
+		     SYN_ID_MODEL(priv->identity),
+		     SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
+		     priv->model_id,
+		     priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
 
 	set_input_params(psmouse->dev, priv);
 
@@ -963,8 +1400,9 @@ int synaptics_init(struct psmouse *psmouse)
 	 * the same rate as a standard PS/2 mouse).
 	 */
 	if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
-		printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
-			dmi_get_system_info(DMI_PRODUCT_NAME));
+		psmouse_info(psmouse,
+			     "Toshiba %s detected, limiting rate to 40pps.\n",
+			     dmi_get_system_info(DMI_PRODUCT_NAME));
 		psmouse->rate = 40;
 	}
 
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index ca040aa80fa..622aea8dd7e 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -74,6 +74,8 @@
  * 2	0x04	reduced filtering	firmware does less filtering on
  *					position data, driver should watch
  *					for noise.
+ * 2	0x08	image sensor		image sensor tracks 5 fingers, but only
+ *					reports 2.
  * 2	0x20	report min		query 0x0f gives min coord reported
  */
 #define SYN_CAP_CLICKPAD(ex0c)		((ex0c) & 0x100000) /* 1-button ClickPad */
@@ -82,6 +84,7 @@
 #define SYN_CAP_MIN_DIMENSIONS(ex0c)	((ex0c) & 0x002000)
 #define SYN_CAP_ADV_GESTURE(ex0c)	((ex0c) & 0x080000)
 #define SYN_CAP_REDUCED_FILTERING(ex0c)	((ex0c) & 0x000400)
+#define SYN_CAP_IMAGE_SENSOR(ex0c)	((ex0c) & 0x000800)
 
 /* synaptics modes query bits */
 #define SYN_MODE_ABSOLUTE(m)		((m) & (1 << 7))
@@ -112,9 +115,18 @@
 #define SYN_REDUCED_FILTER_FUZZ		8
 
 /*
- * A structure to describe the state of the touchpad hardware (buttons and pad)
+ * A structure to describe which internal touchpad finger slots are being
+ * reported in raw packets.
  */
+struct synaptics_mt_state {
+	int count;			/* num fingers being tracked */
+	int sgm;			/* which slot is reported by sgm pkt */
+	int agm;			/* which slot is reported by agm pkt*/
+};
 
+/*
+ * A structure to describe the state of the touchpad hardware (buttons and pad)
+ */
 struct synaptics_hw_state {
 	int x;
 	int y;
@@ -127,6 +139,9 @@ struct synaptics_hw_state {
 	unsigned int down:1;
 	unsigned char ext_buttons;
 	signed char scroll;
+
+	/* As reported in last AGM-CONTACT packets */
+	struct synaptics_mt_state mt_state;
 };
 
 struct synaptics_data {
@@ -146,7 +161,15 @@ struct synaptics_data {
 
 	struct serio *pt_port;			/* Pass-through serio port */
 
-	struct synaptics_hw_state mt;		/* current gesture packet */
+	struct synaptics_mt_state mt_state;	/* Current mt finger state */
+	bool mt_state_lost;			/* mt_state may be incorrect */
+
+	/*
+	 * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
+	 * contains position data for a second contact, at half resolution.
+	 */
+	struct synaptics_hw_state agm;
+	bool agm_pending;			/* new AGM packet received */
 };
 
 void synaptics_module_init(void);
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index cba3c84d2f2..4b755cb5b38 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -570,7 +570,7 @@ static int __devinit synaptics_i2c_probe(struct i2c_client *client,
 			 "Requesting IRQ: %d\n", touch->client->irq);
 
 		ret = request_irq(touch->client->irq, synaptics_i2c_irq,
-				  IRQF_DISABLED|IRQ_TYPE_EDGE_FALLING,
+				  IRQ_TYPE_EDGE_FALLING,
 				  DRIVER_NAME, touch);
 		if (ret) {
 			dev_warn(&touch->client->dev,
@@ -619,7 +619,7 @@ static int __devexit synaptics_i2c_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int synaptics_i2c_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index b7ba4597f7f..4d4cd142bbb 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -9,6 +9,7 @@
  * the Free Software Foundation.
  */
 
+#include <linux/kref.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
@@ -33,15 +34,16 @@ struct serio_raw {
 	unsigned int tail, head;
 
 	char name[16];
-	unsigned int refcnt;
+	struct kref kref;
 	struct serio *serio;
 	struct miscdevice dev;
 	wait_queue_head_t wait;
-	struct list_head list;
+	struct list_head client_list;
 	struct list_head node;
+	bool dead;
 };
 
-struct serio_raw_list {
+struct serio_raw_client {
 	struct fasync_struct *fasync;
 	struct serio_raw *serio_raw;
 	struct list_head node;
@@ -49,7 +51,6 @@ struct serio_raw_list {
 
 static DEFINE_MUTEX(serio_raw_mutex);
 static LIST_HEAD(serio_raw_list);
-static unsigned int serio_raw_no;
 
 /*********************************************************************
  *             Interface with userspace (file operations)            *
@@ -57,9 +58,9 @@ static unsigned int serio_raw_no;
 
 static int serio_raw_fasync(int fd, struct file *file, int on)
 {
-	struct serio_raw_list *list = file->private_data;
+	struct serio_raw_client *client = file->private_data;
 
-	return fasync_helper(fd, file, on, &list->fasync);
+	return fasync_helper(fd, file, on, &client->fasync);
 }
 
 static struct serio_raw *serio_raw_locate(int minor)
@@ -77,8 +78,8 @@ static struct serio_raw *serio_raw_locate(int minor)
 static int serio_raw_open(struct inode *inode, struct file *file)
 {
 	struct serio_raw *serio_raw;
-	struct serio_raw_list *list;
-	int retval = 0;
+	struct serio_raw_client *client;
+	int retval;
 
 	retval = mutex_lock_interruptible(&serio_raw_mutex);
 	if (retval)
@@ -90,60 +91,61 @@ static int serio_raw_open(struct inode *inode, struct file *file)
 		goto out;
 	}
 
-	if (!serio_raw->serio) {
+	if (serio_raw->dead) {
 		retval = -ENODEV;
 		goto out;
 	}
 
-	list = kzalloc(sizeof(struct serio_raw_list), GFP_KERNEL);
-	if (!list) {
+	client = kzalloc(sizeof(struct serio_raw_client), GFP_KERNEL);
+	if (!client) {
 		retval = -ENOMEM;
 		goto out;
 	}
 
-	list->serio_raw = serio_raw;
-	file->private_data = list;
+	client->serio_raw = serio_raw;
+	file->private_data = client;
+
+	kref_get(&serio_raw->kref);
 
-	serio_raw->refcnt++;
-	list_add_tail(&list->node, &serio_raw->list);
+	serio_pause_rx(serio_raw->serio);
+	list_add_tail(&client->node, &serio_raw->client_list);
+	serio_continue_rx(serio_raw->serio);
 
 out:
 	mutex_unlock(&serio_raw_mutex);
 	return retval;
 }
 
-static int serio_raw_cleanup(struct serio_raw *serio_raw)
+static void serio_raw_free(struct kref *kref)
 {
-	if (--serio_raw->refcnt == 0) {
-		misc_deregister(&serio_raw->dev);
-		list_del_init(&serio_raw->node);
-		kfree(serio_raw);
+	struct serio_raw *serio_raw =
+			container_of(kref, struct serio_raw, kref);
 
-		return 1;
-	}
-
-	return 0;
+	put_device(&serio_raw->serio->dev);
+	kfree(serio_raw);
 }
 
 static int serio_raw_release(struct inode *inode, struct file *file)
 {
-	struct serio_raw_list *list = file->private_data;
-	struct serio_raw *serio_raw = list->serio_raw;
+	struct serio_raw_client *client = file->private_data;
+	struct serio_raw *serio_raw = client->serio_raw;
 
-	mutex_lock(&serio_raw_mutex);
+	serio_pause_rx(serio_raw->serio);
+	list_del(&client->node);
+	serio_continue_rx(serio_raw->serio);
 
-	serio_raw_cleanup(serio_raw);
+	kfree(client);
+
+	kref_put(&serio_raw->kref, serio_raw_free);
 
-	mutex_unlock(&serio_raw_mutex);
 	return 0;
 }
 
-static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
+static bool serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
 {
-	unsigned long flags;
-	int empty;
+	bool empty;
 
-	spin_lock_irqsave(&serio_raw->serio->lock, flags);
+	serio_pause_rx(serio_raw->serio);
 
 	empty = serio_raw->head == serio_raw->tail;
 	if (!empty) {
@@ -151,30 +153,31 @@ static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
 		serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
 	}
 
-	spin_unlock_irqrestore(&serio_raw->serio->lock, flags);
+	serio_continue_rx(serio_raw->serio);
 
 	return !empty;
 }
 
-static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t serio_raw_read(struct file *file, char __user *buffer,
+			      size_t count, loff_t *ppos)
 {
-	struct serio_raw_list *list = file->private_data;
-	struct serio_raw *serio_raw = list->serio_raw;
+	struct serio_raw_client *client = file->private_data;
+	struct serio_raw *serio_raw = client->serio_raw;
 	char uninitialized_var(c);
 	ssize_t retval = 0;
 
-	if (!serio_raw->serio)
+	if (serio_raw->dead)
 		return -ENODEV;
 
 	if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
 		return -EAGAIN;
 
-	retval = wait_event_interruptible(list->serio_raw->wait,
-					  serio_raw->head != serio_raw->tail || !serio_raw->serio);
+	retval = wait_event_interruptible(serio_raw->wait,
+			serio_raw->head != serio_raw->tail || serio_raw->dead);
 	if (retval)
 		return retval;
 
-	if (!serio_raw->serio)
+	if (serio_raw->dead)
 		return -ENODEV;
 
 	while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
@@ -186,9 +189,11 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t cou
 	return retval;
 }
 
-static ssize_t serio_raw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t serio_raw_write(struct file *file, const char __user *buffer,
+			       size_t count, loff_t *ppos)
 {
-	struct serio_raw_list *list = file->private_data;
+	struct serio_raw_client *client = file->private_data;
+	struct serio_raw *serio_raw = client->serio_raw;
 	ssize_t written = 0;
 	int retval;
 	unsigned char c;
@@ -197,7 +202,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz
 	if (retval)
 		return retval;
 
-	if (!list->serio_raw->serio) {
+	if (serio_raw->dead) {
 		retval = -ENODEV;
 		goto out;
 	}
@@ -210,7 +215,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz
 			retval = -EFAULT;
 			goto out;
 		}
-		if (serio_write(list->serio_raw->serio, c)) {
+		if (serio_write(serio_raw->serio, c)) {
 			retval = -EIO;
 			goto out;
 		}
@@ -224,46 +229,49 @@ out:
 
 static unsigned int serio_raw_poll(struct file *file, poll_table *wait)
 {
-	struct serio_raw_list *list = file->private_data;
+	struct serio_raw_client *client = file->private_data;
+	struct serio_raw *serio_raw = client->serio_raw;
+	unsigned int mask;
 
-	poll_wait(file, &list->serio_raw->wait, wait);
+	poll_wait(file, &serio_raw->wait, wait);
 
-	if (list->serio_raw->head != list->serio_raw->tail)
+	mask = serio_raw->dead ? POLLHUP | POLLERR : POLLOUT | POLLWRNORM;
+	if (serio_raw->head != serio_raw->tail)
 		return POLLIN | POLLRDNORM;
 
 	return 0;
 }
 
 static const struct file_operations serio_raw_fops = {
-	.owner =	THIS_MODULE,
-	.open =		serio_raw_open,
-	.release =	serio_raw_release,
-	.read =		serio_raw_read,
-	.write =	serio_raw_write,
-	.poll =		serio_raw_poll,
-	.fasync =	serio_raw_fasync,
-	.llseek = noop_llseek,
+	.owner		= THIS_MODULE,
+	.open		= serio_raw_open,
+	.release	= serio_raw_release,
+	.read		= serio_raw_read,
+	.write		= serio_raw_write,
+	.poll		= serio_raw_poll,
+	.fasync		= serio_raw_fasync,
+	.llseek		= noop_llseek,
 };
 
 
 /*********************************************************************
- *                   Interface with serio port   	             *
+ *                   Interface with serio port                       *
  *********************************************************************/
 
 static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
 					unsigned int dfl)
 {
 	struct serio_raw *serio_raw = serio_get_drvdata(serio);
-	struct serio_raw_list *list;
+	struct serio_raw_client *client;
 	unsigned int head = serio_raw->head;
 
-	/* we are holding serio->lock here so we are prootected */
+	/* we are holding serio->lock here so we are protected */
 	serio_raw->queue[head] = data;
 	head = (head + 1) % SERIO_RAW_QUEUE_LEN;
 	if (likely(head != serio_raw->tail)) {
 		serio_raw->head = head;
-		list_for_each_entry(list, &serio_raw->list, node)
-			kill_fasync(&list->fasync, SIGIO, POLL_IN);
+		list_for_each_entry(client, &serio_raw->client_list, node)
+			kill_fasync(&client->fasync, SIGIO, POLL_IN);
 		wake_up_interruptible(&serio_raw->wait);
 	}
 
@@ -272,29 +280,37 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
 
 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
 {
+	static atomic_t serio_raw_no = ATOMIC_INIT(0);
 	struct serio_raw *serio_raw;
 	int err;
 
-	if (!(serio_raw = kzalloc(sizeof(struct serio_raw), GFP_KERNEL))) {
-		printk(KERN_ERR "serio_raw.c: can't allocate memory for a device\n");
+	serio_raw = kzalloc(sizeof(struct serio_raw), GFP_KERNEL);
+	if (!serio_raw) {
+		dev_dbg(&serio->dev, "can't allocate memory for a device\n");
 		return -ENOMEM;
 	}
 
-	mutex_lock(&serio_raw_mutex);
+	snprintf(serio_raw->name, sizeof(serio_raw->name),
+		 "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1);
+	kref_init(&serio_raw->kref);
+	INIT_LIST_HEAD(&serio_raw->client_list);
+	init_waitqueue_head(&serio_raw->wait);
 
-	snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
-	serio_raw->refcnt = 1;
 	serio_raw->serio = serio;
-	INIT_LIST_HEAD(&serio_raw->list);
-	init_waitqueue_head(&serio_raw->wait);
+	get_device(&serio->dev);
 
 	serio_set_drvdata(serio, serio_raw);
 
 	err = serio_open(serio, drv);
 	if (err)
-		goto out_free;
+		goto err_free;
+
+	err = mutex_lock_killable(&serio_raw_mutex);
+	if (err)
+		goto err_close;
 
 	list_add_tail(&serio_raw->node, &serio_raw_list);
+	mutex_unlock(&serio_raw_mutex);
 
 	serio_raw->dev.minor = PSMOUSE_MINOR;
 	serio_raw->dev.name = serio_raw->name;
@@ -308,23 +324,23 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
 	}
 
 	if (err) {
-		printk(KERN_INFO "serio_raw: failed to register raw access device for %s\n",
+		dev_err(&serio->dev,
+			"failed to register raw access device for %s\n",
 			serio->phys);
-		goto out_close;
+		goto err_unlink;
 	}
 
-	printk(KERN_INFO "serio_raw: raw access enabled on %s (%s, minor %d)\n",
-		serio->phys, serio_raw->name, serio_raw->dev.minor);
-	goto out;
+	dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",
+		 serio->phys, serio_raw->name, serio_raw->dev.minor);
+	return 0;
 
-out_close:
-	serio_close(serio);
+err_unlink:
 	list_del_init(&serio_raw->node);
-out_free:
+err_close:
+	serio_close(serio);
+err_free:
 	serio_set_drvdata(serio, NULL);
-	kfree(serio_raw);
-out:
-	mutex_unlock(&serio_raw_mutex);
+	kref_put(&serio_raw->kref, serio_raw_free);
 	return err;
 }
 
@@ -334,7 +350,8 @@ static int serio_raw_reconnect(struct serio *serio)
 	struct serio_driver *drv = serio->drv;
 
 	if (!drv || !serio_raw) {
-		printk(KERN_DEBUG "serio_raw: reconnect request, but serio is disconnected, ignoring...\n");
+		dev_dbg(&serio->dev,
+			"reconnect request, but serio is disconnected, ignoring...\n");
 		return -1;
 	}
 
@@ -345,22 +362,40 @@ static int serio_raw_reconnect(struct serio *serio)
 	return 0;
 }
 
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void serio_raw_hangup(struct serio_raw *serio_raw)
+{
+	struct serio_raw_client *client;
+
+	serio_pause_rx(serio_raw->serio);
+	list_for_each_entry(client, &serio_raw->client_list, node)
+		kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+	serio_continue_rx(serio_raw->serio);
+
+	wake_up_interruptible(&serio_raw->wait);
+}
+
+
 static void serio_raw_disconnect(struct serio *serio)
 {
-	struct serio_raw *serio_raw;
+	struct serio_raw *serio_raw = serio_get_drvdata(serio);
+
+	misc_deregister(&serio_raw->dev);
 
 	mutex_lock(&serio_raw_mutex);
+	serio_raw->dead = true;
+	list_del_init(&serio_raw->node);
+	mutex_unlock(&serio_raw_mutex);
 
-	serio_raw = serio_get_drvdata(serio);
+	serio_raw_hangup(serio_raw);
 
 	serio_close(serio);
-	serio_set_drvdata(serio, NULL);
-
-	serio_raw->serio = NULL;
-	if (!serio_raw_cleanup(serio_raw))
-		wake_up_interruptible(&serio_raw->wait);
+	kref_put(&serio_raw->kref, serio_raw_free);
 
-	mutex_unlock(&serio_raw_mutex);
+	serio_set_drvdata(serio, NULL);
 }
 
 static struct serio_device_id serio_raw_serio_ids[] = {
@@ -391,7 +426,7 @@ static struct serio_driver serio_raw_drv = {
 	.connect	= serio_raw_connect,
 	.reconnect	= serio_raw_reconnect,
 	.disconnect	= serio_raw_disconnect,
-	.manual_bind	= 1,
+	.manual_bind	= true,
 };
 
 static int __init serio_raw_init(void)
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 23317bd09c8..0783864a7dc 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) 2002-2009 Ping Cheng		<pingc@wacom.com>
+ *  Copyright (c) 2002-2011 Ping Cheng		<pingc@wacom.com>
  *
  *  ChangeLog:
  *      v0.1 (vp)  - Initial release
@@ -93,7 +93,7 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "v1.52"
+#define DRIVER_VERSION "v1.53"
 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
 #define DRIVER_DESC "USB Wacom tablet driver"
 #define DRIVER_LICENSE "GPL"
@@ -114,6 +114,12 @@ struct wacom {
 	struct mutex lock;
 	bool open;
 	char phys[32];
+	struct wacom_led {
+		u8 select[2]; /* status led selector (0..3) */
+		u8 llv;       /* status led brightness no button (1..127) */
+		u8 hlv;       /* status led brightness button pressed (1..127) */
+		u8 img_lum;   /* OLED matrix display brightness */
+	} led;
 };
 
 extern const struct usb_device_id wacom_ids[];
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 958b4eb6369..1c1b7b43cf9 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -48,27 +48,49 @@ struct hid_descriptor {
 /* defines to get/set USB message */
 #define USB_REQ_GET_REPORT	0x01
 #define USB_REQ_SET_REPORT	0x09
+
 #define WAC_HID_FEATURE_REPORT	0x03
 #define WAC_MSG_RETRIES		5
 
-static int usb_get_report(struct usb_interface *intf, unsigned char type,
-				unsigned char id, void *buf, int size)
+#define WAC_CMD_LED_CONTROL	0x20
+#define WAC_CMD_ICON_START	0x21
+#define WAC_CMD_ICON_XFER	0x23
+#define WAC_CMD_RETRIES		10
+
+static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id,
+			    void *buf, size_t size, unsigned int retries)
 {
-	return usb_control_msg(interface_to_usbdev(intf),
-		usb_rcvctrlpipe(interface_to_usbdev(intf), 0),
-		USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-		(type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
-		buf, size, 100);
+	struct usb_device *dev = interface_to_usbdev(intf);
+	int retval;
+
+	do {
+		retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+				USB_REQ_GET_REPORT,
+				USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				(type << 8) + id,
+				intf->altsetting[0].desc.bInterfaceNumber,
+				buf, size, 100);
+	} while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
+
+	return retval;
 }
 
-static int usb_set_report(struct usb_interface *intf, unsigned char type,
-				unsigned char id, void *buf, int size)
+static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id,
+			    void *buf, size_t size, unsigned int retries)
 {
-	return usb_control_msg(interface_to_usbdev(intf),
-		usb_sndctrlpipe(interface_to_usbdev(intf), 0),
-                USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-                (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
-		buf, size, 1000);
+	struct usb_device *dev = interface_to_usbdev(intf);
+	int retval;
+
+	do {
+		retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+				USB_REQ_SET_REPORT,
+				USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				(type << 8) + id,
+				intf->altsetting[0].desc.bInterfaceNumber,
+				buf, size, 1000);
+	} while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
+
+	return retval;
 }
 
 static void wacom_sys_irq(struct urb *urb)
@@ -319,23 +341,23 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
 			rep_data[2] = 0;
 			rep_data[3] = 0;
 			report_id = 3;
-			error = usb_set_report(intf, WAC_HID_FEATURE_REPORT,
-				report_id, rep_data, 4);
+			error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
+						 report_id, rep_data, 4, 1);
 			if (error >= 0)
-				error = usb_get_report(intf,
-					WAC_HID_FEATURE_REPORT, report_id,
-					rep_data, 4);
+				error = wacom_get_report(intf,
+						WAC_HID_FEATURE_REPORT,
+						report_id, rep_data, 4, 1);
 		} while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
 	} else if (features->type != TABLETPC) {
 		do {
 			rep_data[0] = 2;
 			rep_data[1] = 2;
-			error = usb_set_report(intf, WAC_HID_FEATURE_REPORT,
-				report_id, rep_data, 2);
+			error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
+						 report_id, rep_data, 2, 1);
 			if (error >= 0)
-				error = usb_get_report(intf,
-					WAC_HID_FEATURE_REPORT, report_id,
-					rep_data, 2);
+				error = wacom_get_report(intf,
+						WAC_HID_FEATURE_REPORT,
+						report_id, rep_data, 2, 1);
 		} while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES);
 	}
 
@@ -454,6 +476,275 @@ static void wacom_remove_shared_data(struct wacom_wac *wacom)
 	}
 }
 
+static int wacom_led_control(struct wacom *wacom)
+{
+	unsigned char *buf;
+	int retval, led = 0;
+
+	buf = kzalloc(9, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (wacom->wacom_wac.features.type == WACOM_21UX2)
+		led = (wacom->led.select[1] << 4) | 0x40;
+
+	led |=  wacom->led.select[0] | 0x4;
+
+	buf[0] = WAC_CMD_LED_CONTROL;
+	buf[1] = led;
+	buf[2] = wacom->led.llv;
+	buf[3] = wacom->led.hlv;
+	buf[4] = wacom->led.img_lum;
+
+	retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL,
+				  buf, 9, WAC_CMD_RETRIES);
+	kfree(buf);
+
+	return retval;
+}
+
+static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img)
+{
+	unsigned char *buf;
+	int i, retval;
+
+	buf = kzalloc(259, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	/* Send 'start' command */
+	buf[0] = WAC_CMD_ICON_START;
+	buf[1] = 1;
+	retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
+				  buf, 2, WAC_CMD_RETRIES);
+	if (retval < 0)
+		goto out;
+
+	buf[0] = WAC_CMD_ICON_XFER;
+	buf[1] = button_id & 0x07;
+	for (i = 0; i < 4; i++) {
+		buf[2] = i;
+		memcpy(buf + 3, img + i * 256, 256);
+
+		retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER,
+					  buf, 259, WAC_CMD_RETRIES);
+		if (retval < 0)
+			break;
+	}
+
+	/* Send 'stop' */
+	buf[0] = WAC_CMD_ICON_START;
+	buf[1] = 0;
+	wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
+			 buf, 2, WAC_CMD_RETRIES);
+
+out:
+	kfree(buf);
+	return retval;
+}
+
+static ssize_t wacom_led_select_store(struct device *dev, int set_id,
+				      const char *buf, size_t count)
+{
+	struct wacom *wacom = dev_get_drvdata(dev);
+	unsigned int id;
+	int err;
+
+	err = kstrtouint(buf, 10, &id);
+	if (err)
+		return err;
+
+	mutex_lock(&wacom->lock);
+
+	wacom->led.select[set_id] = id & 0x3;
+	err = wacom_led_control(wacom);
+
+	mutex_unlock(&wacom->lock);
+
+	return err < 0 ? err : count;
+}
+
+#define DEVICE_LED_SELECT_ATTR(SET_ID)					\
+static ssize_t wacom_led##SET_ID##_select_store(struct device *dev,	\
+	struct device_attribute *attr, const char *buf, size_t count)	\
+{									\
+	return wacom_led_select_store(dev, SET_ID, buf, count);		\
+}									\
+static ssize_t wacom_led##SET_ID##_select_show(struct device *dev,	\
+	struct device_attribute *attr, char *buf)			\
+{									\
+	struct wacom *wacom = dev_get_drvdata(dev);			\
+	return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]);	\
+}									\
+static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR,	\
+		    wacom_led##SET_ID##_select_show,			\
+		    wacom_led##SET_ID##_select_store)
+
+DEVICE_LED_SELECT_ATTR(0);
+DEVICE_LED_SELECT_ATTR(1);
+
+static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
+				     const char *buf, size_t count)
+{
+	unsigned int value;
+	int err;
+
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	mutex_lock(&wacom->lock);
+
+	*dest = value & 0x7f;
+	err = wacom_led_control(wacom);
+
+	mutex_unlock(&wacom->lock);
+
+	return err < 0 ? err : count;
+}
+
+#define DEVICE_LUMINANCE_ATTR(name, field)				\
+static ssize_t wacom_##name##_luminance_store(struct device *dev,	\
+	struct device_attribute *attr, const char *buf, size_t count)	\
+{									\
+	struct wacom *wacom = dev_get_drvdata(dev);			\
+									\
+	return wacom_luminance_store(wacom, &wacom->led.field,		\
+				     buf, count);			\
+}									\
+static DEVICE_ATTR(name##_luminance, S_IWUSR,				\
+		   NULL, wacom_##name##_luminance_store)
+
+DEVICE_LUMINANCE_ATTR(status0, llv);
+DEVICE_LUMINANCE_ATTR(status1, hlv);
+DEVICE_LUMINANCE_ATTR(buttons, img_lum);
+
+static ssize_t wacom_button_image_store(struct device *dev, int button_id,
+					const char *buf, size_t count)
+{
+	struct wacom *wacom = dev_get_drvdata(dev);
+	int err;
+
+	if (count != 1024)
+		return -EINVAL;
+
+	mutex_lock(&wacom->lock);
+
+	err = wacom_led_putimage(wacom, button_id, buf);
+
+	mutex_unlock(&wacom->lock);
+
+	return err < 0 ? err : count;
+}
+
+#define DEVICE_BTNIMG_ATTR(BUTTON_ID)					\
+static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev,	\
+	struct device_attribute *attr, const char *buf, size_t count)	\
+{									\
+	return wacom_button_image_store(dev, BUTTON_ID, buf, count);	\
+}									\
+static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR,			\
+		   NULL, wacom_btnimg##BUTTON_ID##_store)
+
+DEVICE_BTNIMG_ATTR(0);
+DEVICE_BTNIMG_ATTR(1);
+DEVICE_BTNIMG_ATTR(2);
+DEVICE_BTNIMG_ATTR(3);
+DEVICE_BTNIMG_ATTR(4);
+DEVICE_BTNIMG_ATTR(5);
+DEVICE_BTNIMG_ATTR(6);
+DEVICE_BTNIMG_ATTR(7);
+
+static struct attribute *cintiq_led_attrs[] = {
+	&dev_attr_status_led0_select.attr,
+	&dev_attr_status_led1_select.attr,
+	NULL
+};
+
+static struct attribute_group cintiq_led_attr_group = {
+	.name = "wacom_led",
+	.attrs = cintiq_led_attrs,
+};
+
+static struct attribute *intuos4_led_attrs[] = {
+	&dev_attr_status0_luminance.attr,
+	&dev_attr_status1_luminance.attr,
+	&dev_attr_status_led0_select.attr,
+	&dev_attr_buttons_luminance.attr,
+	&dev_attr_button0_rawimg.attr,
+	&dev_attr_button1_rawimg.attr,
+	&dev_attr_button2_rawimg.attr,
+	&dev_attr_button3_rawimg.attr,
+	&dev_attr_button4_rawimg.attr,
+	&dev_attr_button5_rawimg.attr,
+	&dev_attr_button6_rawimg.attr,
+	&dev_attr_button7_rawimg.attr,
+	NULL
+};
+
+static struct attribute_group intuos4_led_attr_group = {
+	.name = "wacom_led",
+	.attrs = intuos4_led_attrs,
+};
+
+static int wacom_initialize_leds(struct wacom *wacom)
+{
+	int error;
+
+	/* Initialize default values */
+	switch (wacom->wacom_wac.features.type) {
+	case INTUOS4:
+	case INTUOS4L:
+		wacom->led.select[0] = 0;
+		wacom->led.select[1] = 0;
+		wacom->led.llv = 10;
+		wacom->led.hlv = 20;
+		wacom->led.img_lum = 10;
+		error = sysfs_create_group(&wacom->intf->dev.kobj,
+					   &intuos4_led_attr_group);
+		break;
+
+	case WACOM_21UX2:
+		wacom->led.select[0] = 0;
+		wacom->led.select[1] = 0;
+		wacom->led.llv = 0;
+		wacom->led.hlv = 0;
+		wacom->led.img_lum = 0;
+
+		error = sysfs_create_group(&wacom->intf->dev.kobj,
+					   &cintiq_led_attr_group);
+		break;
+
+	default:
+		return 0;
+	}
+
+	if (error) {
+		dev_err(&wacom->intf->dev,
+			"cannot create sysfs group err: %d\n", error);
+		return error;
+	}
+	wacom_led_control(wacom);
+
+	return 0;
+}
+
+static void wacom_destroy_leds(struct wacom *wacom)
+{
+	switch (wacom->wacom_wac.features.type) {
+	case INTUOS4:
+	case INTUOS4L:
+		sysfs_remove_group(&wacom->intf->dev.kobj,
+				   &intuos4_led_attr_group);
+		break;
+
+	case WACOM_21UX2:
+		sysfs_remove_group(&wacom->intf->dev.kobj,
+				   &cintiq_led_attr_group);
+		break;
+	}
+}
+
 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
 	struct usb_device *dev = interface_to_usbdev(intf);
@@ -542,16 +833,21 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 	wacom->irq->transfer_dma = wacom->data_dma;
 	wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
-	error = input_register_device(input_dev);
+	error = wacom_initialize_leds(wacom);
 	if (error)
 		goto fail4;
 
+	error = input_register_device(input_dev);
+	if (error)
+		goto fail5;
+
 	/* Note that if query fails it is not a hard failure */
 	wacom_query_tablet_data(intf, features);
 
 	usb_set_intfdata(intf, wacom);
 	return 0;
 
+ fail5: wacom_destroy_leds(wacom);
  fail4:	wacom_remove_shared_data(wacom_wac);
  fail3:	usb_free_urb(wacom->irq);
  fail2:	usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
@@ -568,6 +864,7 @@ static void wacom_disconnect(struct usb_interface *intf)
 
 	usb_kill_urb(wacom->irq);
 	input_unregister_device(wacom->wacom_wac.input);
+	wacom_destroy_leds(wacom);
 	usb_free_urb(wacom->irq);
 	usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
 			wacom->wacom_wac.data, wacom->data_dma);
@@ -590,17 +887,16 @@ static int wacom_resume(struct usb_interface *intf)
 {
 	struct wacom *wacom = usb_get_intfdata(intf);
 	struct wacom_features *features = &wacom->wacom_wac.features;
-	int rv;
+	int rv = 0;
 
 	mutex_lock(&wacom->lock);
 
 	/* switch to wacom mode first */
 	wacom_query_tablet_data(intf, features);
+	wacom_led_control(wacom);
 
-	if (wacom->open)
-		rv = usb_submit_urb(wacom->irq, GFP_NOIO);
-	else
-		rv = 0;
+	if (wacom->open && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+		rv = -EIO;
 
 	mutex_unlock(&wacom->lock);
 
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 9dea71849f4..da0d8761e77 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -874,7 +874,15 @@ static int wacom_bpt_pen(struct wacom_wac *wacom)
 		x = le16_to_cpup((__le16 *)&data[2]);
 		y = le16_to_cpup((__le16 *)&data[4]);
 		p = le16_to_cpup((__le16 *)&data[6]);
-		d = data[8];
+		/*
+		 * Convert distance from out prox to distance from tablet.
+		 * distance will be greater than distance_max once
+		 * touching and applying pressure; do not report negative
+		 * distance.
+		 */
+		if (data[8] <= wacom->features.distance_max)
+			d = wacom->features.distance_max - data[8];
+
 		pen = data[1] & 0x01;
 		btn1 = data[1] & 0x02;
 		btn2 = data[1] & 0x04;
@@ -1030,8 +1038,6 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 		features->y_max <<= 5;
 		features->x_fuzz <<= 5;
 		features->y_fuzz <<= 5;
-		features->pressure_max = 256;
-		features->pressure_fuzz = 16;
 		features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
 	}
 }
@@ -1241,14 +1247,14 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 			input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
 					     0, features->y_max,
 					     features->y_fuzz, 0);
-			input_set_abs_params(input_dev, ABS_MT_PRESSURE,
-					     0, features->pressure_max,
-					     features->pressure_fuzz, 0);
 		} else if (features->device_type == BTN_TOOL_PEN) {
 			__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
 			__set_bit(BTN_TOOL_PEN, input_dev->keybit);
 			__set_bit(BTN_STYLUS, input_dev->keybit);
 			__set_bit(BTN_STYLUS2, input_dev->keybit);
+			input_set_abs_params(input_dev, ABS_DISTANCE, 0,
+					      features->distance_max,
+					      0, 0);
 		}
 		break;
 	}
@@ -1469,37 +1475,37 @@ static const struct wacom_features wacom_features_0x47 =
 	  31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD0 =
 	{ "Wacom Bamboo 2FG",     WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD1 =
 	{ "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD2 =
 	{ "Wacom Bamboo Craft",   WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD3 =
-	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13530, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13700, 1023,
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD4 =
 	{ "Wacom Bamboo Pen",     WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD5 =
-	{ "Wacom Bamboo Pen 6x8",     WACOM_PKGLEN_BBFUN, 21648, 13530, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	{ "Wacom Bamboo Pen 6x8",     WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD6 =
 	{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN,   14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD7 =
 	{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xD8 =
-	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13530, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13700, 1023,
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0xDA =
 	{ "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN,  14720,  9200, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static struct wacom_features wacom_features_0xDB =
-	{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN,  21648, 13530, 1023,
-	  63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+	{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN,  21648, 13700, 1023,
+	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x6004 =
 	{ "ISD-V4",               WACOM_PKGLEN_GRAPHIRE,  12800,  8000,  255,
 	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index cabd9e54863..3488ffe1fa0 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -651,6 +651,18 @@ config TOUCHSCREEN_TOUCHIT213
 	  To compile this driver as a module, choose M here: the
 	  module will be called touchit213.
 
+config TOUCHSCREEN_TSC_SERIO
+	tristate "TSC-10/25/40 serial touchscreen support"
+	select SERIO
+	help
+	  Say Y here if you have a TSC-10, 25 or 40 serial touchscreen connected
+	  to your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tsc40.
+
 config TOUCHSCREEN_TSC2005
         tristate "TSC2005 based touchscreens"
         depends on SPI_MASTER && GENERIC_HARDIRQS
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 282d6f76ae2..f957676035a 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_TOUCHSCREEN_TNETV107X)	+= tnetv107x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT)	+= touchright.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)	+= touchwin.o
+obj-$(CONFIG_TOUCHSCREEN_TSC_SERIO)	+= tsc40.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2005)	+= tsc2005.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c
index 4e4e58cec6c..c789b974c79 100644
--- a/drivers/input/touchscreen/ad7879-i2c.c
+++ b/drivers/input/touchscreen/ad7879-i2c.c
@@ -16,7 +16,7 @@
 
 #define AD7879_DEVID		0x79	/* AD7879-1/AD7889-1 */
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ad7879_i2c_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -36,9 +36,9 @@ static int ad7879_i2c_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(ad7879_i2c_pm, ad7879_i2c_suspend, ad7879_i2c_resume);
-#endif
 
 /* All registers are word-sized.
  * AD7879 uses a high-byte first convention.
@@ -119,9 +119,7 @@ static struct i2c_driver ad7879_i2c_driver = {
 	.driver = {
 		.name	= "ad7879",
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
 		.pm	= &ad7879_i2c_pm,
-#endif
 	},
 	.probe		= ad7879_i2c_probe,
 	.remove		= __devexit_p(ad7879_i2c_remove),
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index f5d66859f23..a596c2775d1 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -910,12 +910,17 @@ static ssize_t mxt_object_show(struct device *dev,
 	for (i = 0; i < data->info.object_num; i++) {
 		object = data->object_table + i;
 
-		count += sprintf(buf + count,
-				"Object Table Element %d(Type %d)\n",
+		count += snprintf(buf + count, PAGE_SIZE - count,
+				"Object[%d] (Type %d)\n",
 				i + 1, object->type);
+		if (count >= PAGE_SIZE)
+			return PAGE_SIZE - 1;
 
 		if (!mxt_object_readable(object->type)) {
-			count += sprintf(buf + count, "\n");
+			count += snprintf(buf + count, PAGE_SIZE - count,
+					"\n");
+			if (count >= PAGE_SIZE)
+				return PAGE_SIZE - 1;
 			continue;
 		}
 
@@ -925,11 +930,15 @@ static ssize_t mxt_object_show(struct device *dev,
 			if (error)
 				return error;
 
-			count += sprintf(buf + count,
-					"  Byte %d: 0x%x (%d)\n", j, val, val);
+			count += snprintf(buf + count, PAGE_SIZE - count,
+					"\t[%2d]: %02x (%d)\n", j, val, val);
+			if (count >= PAGE_SIZE)
+				return PAGE_SIZE - 1;
 		}
 
-		count += sprintf(buf + count, "\n");
+		count += snprintf(buf + count, PAGE_SIZE - count, "\n");
+		if (count >= PAGE_SIZE)
+			return PAGE_SIZE - 1;
 	}
 
 	return count;
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c
index 432c69be6ac..122a8788365 100644
--- a/drivers/input/touchscreen/atmel_tsadcc.c
+++ b/drivers/input/touchscreen/atmel_tsadcc.c
@@ -229,7 +229,7 @@ static int __devinit atmel_tsadcc_probe(struct platform_device *pdev)
 		goto err_release_mem;
 	}
 
-	err = request_irq(ts_dev->irq, atmel_tsadcc_interrupt, IRQF_DISABLED,
+	err = request_irq(ts_dev->irq, atmel_tsadcc_interrupt, 0,
 			pdev->dev.driver->name, ts_dev);
 	if (err) {
 		dev_err(&pdev->dev, "failed to allocate irq.\n");
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index 211811ae552..6107e563e68 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -396,14 +396,14 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
 	set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);
 
 	if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
-			IRQF_SHARED | IRQF_DISABLED, "h3600_action", ts->dev)) {
+			IRQF_SHARED, "h3600_action", ts->dev)) {
 		printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
 		err = -EBUSY;
 		goto fail1;
 	}
 
 	if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
-			IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", ts->dev)) {
+			IRQF_SHARED, "h3600_suspend", ts->dev)) {
 		printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
 		err = -EBUSY;
 		goto fail2;
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
index dd4e8f020b9..639a6044183 100644
--- a/drivers/input/touchscreen/hp680_ts_input.c
+++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -93,7 +93,7 @@ static int __init hp680_ts_init(void)
 	hp680_ts_dev->phys = "hp680_ts/input0";
 
 	if (request_irq(HP680_TS_IRQ, hp680_ts_interrupt,
-			IRQF_DISABLED, MODNAME, 0) < 0) {
+			0, MODNAME, 0) < 0) {
 		printk(KERN_ERR "hp680_touchscreen.c: Can't allocate irq %d\n",
 		       HP680_TS_IRQ);
 		err = -EBUSY;
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 4b0a061811f..50076c2d59e 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -127,7 +127,7 @@ static int __devinit jornada720_ts_probe(struct platform_device *pdev)
 
 	error = request_irq(IRQ_GPIO9,
 			jornada720_ts_interrupt,
-			IRQF_DISABLED | IRQF_TRIGGER_RISING,
+			IRQF_TRIGGER_RISING,
 			"HP7XX Touchscreen driver", pdev);
 	if (error) {
 		printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
index dcf803f5a1f..0a484ed5295 100644
--- a/drivers/input/touchscreen/lpc32xx_ts.c
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -276,7 +276,7 @@ static int __devinit lpc32xx_ts_probe(struct platform_device *pdev)
 	input_set_drvdata(input, tsc);
 
 	error = request_irq(tsc->irq, lpc32xx_ts_interrupt,
-			    IRQF_DISABLED, pdev->name, tsc);
+			    0, pdev->name, tsc);
 	if (error) {
 		dev_err(&pdev->dev, "failed requesting interrupt\n");
 		goto err_put_clock;
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index c7f9cebebbb..4c012fb2b01 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -2,6 +2,7 @@
  * Penmount serial touchscreen driver
  *
  * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ * Copyright (c) 2011 John Sung <penmount.touch@gmail.com>
  *
  * Based on ELO driver (drivers/input/touchscreen/elo.c)
  * Copyright (c) 2004 Vojtech Pavlik
@@ -18,12 +19,14 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/init.h>
 
-#define DRIVER_DESC	"Penmount serial touchscreen driver"
+#define DRIVER_DESC	"PenMount serial touchscreen driver"
 
 MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_AUTHOR("John Sung <penmount.touch@gmail.com>");
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
@@ -31,7 +34,19 @@ MODULE_LICENSE("GPL");
  * Definitions & global arrays.
  */
 
-#define	PM_MAX_LENGTH	5
+#define	PM_MAX_LENGTH	6
+#define	PM_MAX_MTSLOT	16
+#define	PM_3000_MTSLOT	2
+#define	PM_6250_MTSLOT	12
+
+/*
+ * Multi-touch slot
+ */
+
+struct mt_slot {
+	unsigned short x, y;
+	bool active; /* is the touch valid? */
+};
 
 /*
  * Per-touchscreen data.
@@ -43,25 +58,119 @@ struct pm {
 	int idx;
 	unsigned char data[PM_MAX_LENGTH];
 	char phys[32];
+	unsigned char packetsize;
+	unsigned char maxcontacts;
+	struct mt_slot slots[PM_MAX_MTSLOT];
+	void (*parse_packet)(struct pm *);
 };
 
-static irqreturn_t pm_interrupt(struct serio *serio,
-		unsigned char data, unsigned int flags)
+/*
+ * pm_mtevent() sends mt events and also emulates pointer movement
+ */
+
+static void pm_mtevent(struct pm *pm, struct input_dev *input)
+{
+	int i;
+
+	for (i = 0; i < pm->maxcontacts; ++i) {
+		input_mt_slot(input, i);
+		input_mt_report_slot_state(input, MT_TOOL_FINGER,
+				pm->slots[i].active);
+		if (pm->slots[i].active) {
+			input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
+			input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
+		}
+	}
+
+	input_mt_report_pointer_emulation(input, true);
+	input_sync(input);
+}
+
+/*
+ * pm_checkpacket() checks if data packet is valid
+ */
+
+static bool pm_checkpacket(unsigned char *packet)
+{
+	int total = 0;
+	int i;
+
+	for (i = 0; i < 5; i++)
+		total += packet[i];
+
+	return packet[5] == (unsigned char)~(total & 0xff);
+}
+
+static void pm_parse_9000(struct pm *pm)
 {
-	struct pm *pm = serio_get_drvdata(serio);
 	struct input_dev *dev = pm->dev;
 
-	pm->data[pm->idx] = data;
+	if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {
+		input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
+		input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
+		input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
+		input_sync(dev);
+		pm->idx = 0;
+	}
+}
 
-	if (pm->data[0] & 0x80) {
-		if (PM_MAX_LENGTH == ++pm->idx) {
-			input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
-			input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
-			input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
+static void pm_parse_6000(struct pm *pm)
+{
+	struct input_dev *dev = pm->dev;
+
+	if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {
+		if (pm_checkpacket(pm->data)) {
+			input_report_abs(dev, ABS_X,
+					pm->data[2] * 256 + pm->data[1]);
+			input_report_abs(dev, ABS_Y,
+					pm->data[4] * 256 + pm->data[3]);
+			input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);
 			input_sync(dev);
-			pm->idx = 0;
 		}
+		pm->idx = 0;
+	}
+}
+
+static void pm_parse_3000(struct pm *pm)
+{
+	struct input_dev *dev = pm->dev;
+
+	if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {
+		if (pm_checkpacket(pm->data)) {
+			int slotnum = pm->data[0] & 0x0f;
+			pm->slots[slotnum].active = pm->data[0] & 0x30;
+			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
+			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
+			pm_mtevent(pm, dev);
+		}
+		pm->idx = 0;
+	}
+}
+
+static void pm_parse_6250(struct pm *pm)
+{
+	struct input_dev *dev = pm->dev;
+
+	if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {
+		if (pm_checkpacket(pm->data)) {
+			int slotnum = pm->data[0] & 0x0f;
+			pm->slots[slotnum].active = pm->data[0] & 0x40;
+			pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
+			pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
+			pm_mtevent(pm, dev);
+		}
+		pm->idx = 0;
 	}
+}
+
+static irqreturn_t pm_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct pm *pm = serio_get_drvdata(serio);
+
+	pm->data[pm->idx] = data;
+
+	pm->parse_packet(pm);
 
 	return IRQ_HANDLED;
 }
@@ -74,17 +183,17 @@ static void pm_disconnect(struct serio *serio)
 {
 	struct pm *pm = serio_get_drvdata(serio);
 
-	input_get_device(pm->dev);
-	input_unregister_device(pm->dev);
 	serio_close(serio);
-	serio_set_drvdata(serio, NULL);
-	input_put_device(pm->dev);
+
+	input_unregister_device(pm->dev);
 	kfree(pm);
+
+	serio_set_drvdata(serio, NULL);
 }
 
 /*
  * pm_connect() is the routine that is called when someone adds a
- * new serio device that supports Gunze protocol and registers it as
+ * new serio device that supports PenMount protocol and registers it as
  * an input device.
  */
 
@@ -92,6 +201,7 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct pm *pm;
 	struct input_dev *input_dev;
+	int max_x, max_y;
 	int err;
 
 	pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
@@ -104,8 +214,9 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
 	pm->serio = serio;
 	pm->dev = input_dev;
 	snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
+	pm->maxcontacts = 1;
 
-	input_dev->name = "Penmount Serial TouchScreen";
+	input_dev->name = "PenMount Serial TouchScreen";
 	input_dev->phys = pm->phys;
 	input_dev->id.bustype = BUS_RS232;
 	input_dev->id.vendor = SERIO_PENMOUNT;
@@ -113,10 +224,52 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
 	input_dev->id.version = 0x0100;
 	input_dev->dev.parent = &serio->dev;
 
-        input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-        input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
-        input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
-        input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+	switch (serio->id.id) {
+	default:
+	case 0:
+		pm->packetsize = 5;
+		pm->parse_packet = pm_parse_9000;
+		input_dev->id.product = 0x9000;
+		max_x = max_y = 0x3ff;
+		break;
+
+	case 1:
+		pm->packetsize = 6;
+		pm->parse_packet = pm_parse_6000;
+		input_dev->id.product = 0x6000;
+		max_x = max_y = 0x3ff;
+		break;
+
+	case 2:
+		pm->packetsize = 6;
+		pm->parse_packet = pm_parse_3000;
+		input_dev->id.product = 0x3000;
+		max_x = max_y = 0x7ff;
+		pm->maxcontacts = PM_3000_MTSLOT;
+		break;
+
+	case 3:
+		pm->packetsize = 6;
+		pm->parse_packet = pm_parse_6250;
+		input_dev->id.product = 0x6250;
+		max_x = max_y = 0x3ff;
+		pm->maxcontacts = PM_6250_MTSLOT;
+		break;
+	}
+
+	input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);
+	input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);
+
+	if (pm->maxcontacts > 1) {
+		input_mt_init_slots(pm->dev, pm->maxcontacts);
+		input_set_abs_params(pm->dev,
+				     ABS_MT_POSITION_X, 0, max_x, 0, 0);
+		input_set_abs_params(pm->dev,
+				     ABS_MT_POSITION_Y, 0, max_y, 0, 0);
+	}
 
 	serio_set_drvdata(serio, pm);
 
@@ -155,7 +308,7 @@ MODULE_DEVICE_TABLE(serio, pm_serio_ids);
 
 static struct serio_driver pm_drv = {
 	.driver		= {
-		.name	= "penmountlpc",
+		.name	= "serio-penmount",
 	},
 	.description	= DRIVER_DESC,
 	.id_table	= pm_serio_ids,
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 8feb7f3c8be..64ce697a345 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -328,7 +328,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
 	ts.shift = info->oversampling_shift;
 	ts.features = platform_get_device_id(pdev)->driver_data;
 
-	ret = request_irq(ts.irq_tc, stylus_irq, IRQF_DISABLED,
+	ret = request_irq(ts.irq_tc, stylus_irq, 0,
 			  "s3c2410_ts_pen", ts.input);
 	if (ret) {
 		dev_err(dev, "cannot get TC interrupt\n");
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index fadc11545b1..1f674cb6c55 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -66,7 +66,6 @@ struct ts_event {
 struct tsc2007 {
 	struct input_dev	*input;
 	char			phys[32];
-	struct delayed_work	work;
 
 	struct i2c_client	*client;
 
@@ -76,9 +75,11 @@ struct tsc2007 {
 	unsigned long		poll_delay;
 	unsigned long		poll_period;
 
-	bool			pendown;
 	int			irq;
 
+	wait_queue_head_t	wait;
+	bool			stopped;
+
 	int			(*get_pendown_state)(void);
 	void			(*clear_penirq)(void);
 };
@@ -141,25 +142,8 @@ static u32 tsc2007_calculate_pressure(struct tsc2007 *tsc, struct ts_event *tc)
 	return rt;
 }
 
-static void tsc2007_send_up_event(struct tsc2007 *tsc)
+static bool tsc2007_is_pen_down(struct tsc2007 *ts)
 {
-	struct input_dev *input = tsc->input;
-
-	dev_dbg(&tsc->client->dev, "UP\n");
-
-	input_report_key(input, BTN_TOUCH, 0);
-	input_report_abs(input, ABS_PRESSURE, 0);
-	input_sync(input);
-}
-
-static void tsc2007_work(struct work_struct *work)
-{
-	struct tsc2007 *ts =
-		container_of(to_delayed_work(work), struct tsc2007, work);
-	bool debounced = false;
-	struct ts_event tc;
-	u32 rt;
-
 	/*
 	 * NOTE: We can't rely on the pressure to determine the pen down
 	 * state, even though this controller has a pressure sensor.
@@ -170,79 +154,82 @@ static void tsc2007_work(struct work_struct *work)
 	 * The only safe way to check for the pen up condition is in the
 	 * work function by reading the pen signal state (it's a GPIO
 	 * and IRQ). Unfortunately such callback is not always available,
-	 * in that case we have rely on the pressure anyway.
+	 * in that case we assume that the pen is down and expect caller
+	 * to fall back on the pressure reading.
 	 */
-	if (ts->get_pendown_state) {
-		if (unlikely(!ts->get_pendown_state())) {
-			tsc2007_send_up_event(ts);
-			ts->pendown = false;
-			goto out;
-		}
 
-		dev_dbg(&ts->client->dev, "pen is still down\n");
-	}
+	if (!ts->get_pendown_state)
+		return true;
+
+	return ts->get_pendown_state();
+}
+
+static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
+{
+	struct tsc2007 *ts = handle;
+	struct input_dev *input = ts->input;
+	struct ts_event tc;
+	u32 rt;
 
-	tsc2007_read_values(ts, &tc);
+	while (!ts->stopped && tsc2007_is_pen_down(ts)) {
 
-	rt = tsc2007_calculate_pressure(ts, &tc);
-	if (rt > ts->max_rt) {
-		/*
-		 * Sample found inconsistent by debouncing or pressure is
-		 * beyond the maximum. Don't report it to user space,
-		 * repeat at least once more the measurement.
-		 */
-		dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);
-		debounced = true;
-		goto out;
+		/* pen is down, continue with the measurement */
+		tsc2007_read_values(ts, &tc);
 
-	}
+		rt = tsc2007_calculate_pressure(ts, &tc);
 
-	if (rt) {
-		struct input_dev *input = ts->input;
+		if (rt == 0 && !ts->get_pendown_state) {
+			/*
+			 * If pressure reported is 0 and we don't have
+			 * callback to check pendown state, we have to
+			 * assume that pen was lifted up.
+			 */
+			break;
+		}
 
-		if (!ts->pendown) {
-			dev_dbg(&ts->client->dev, "DOWN\n");
+		if (rt <= ts->max_rt) {
+			dev_dbg(&ts->client->dev,
+				"DOWN point(%4d,%4d), pressure (%4u)\n",
+				tc.x, tc.y, rt);
 
 			input_report_key(input, BTN_TOUCH, 1);
-			ts->pendown = true;
+			input_report_abs(input, ABS_X, tc.x);
+			input_report_abs(input, ABS_Y, tc.y);
+			input_report_abs(input, ABS_PRESSURE, rt);
+
+			input_sync(input);
+
+		} else {
+			/*
+			 * Sample found inconsistent by debouncing or pressure is
+			 * beyond the maximum. Don't report it to user space,
+			 * repeat at least once more the measurement.
+			 */
+			dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);
 		}
 
-		input_report_abs(input, ABS_X, tc.x);
-		input_report_abs(input, ABS_Y, tc.y);
-		input_report_abs(input, ABS_PRESSURE, rt);
+		wait_event_timeout(ts->wait, ts->stopped,
+				   msecs_to_jiffies(ts->poll_period));
+	}
 
-		input_sync(input);
+	dev_dbg(&ts->client->dev, "UP\n");
 
-		dev_dbg(&ts->client->dev, "point(%4d,%4d), pressure (%4u)\n",
-			tc.x, tc.y, rt);
+	input_report_key(input, BTN_TOUCH, 0);
+	input_report_abs(input, ABS_PRESSURE, 0);
+	input_sync(input);
 
-	} else if (!ts->get_pendown_state && ts->pendown) {
-		/*
-		 * We don't have callback to check pendown state, so we
-		 * have to assume that since pressure reported is 0 the
-		 * pen was lifted up.
-		 */
-		tsc2007_send_up_event(ts);
-		ts->pendown = false;
-	}
+	if (ts->clear_penirq)
+		ts->clear_penirq();
 
- out:
-	if (ts->pendown || debounced)
-		schedule_delayed_work(&ts->work,
-				      msecs_to_jiffies(ts->poll_period));
-	else
-		enable_irq(ts->irq);
+	return IRQ_HANDLED;
 }
 
-static irqreturn_t tsc2007_irq(int irq, void *handle)
+static irqreturn_t tsc2007_hard_irq(int irq, void *handle)
 {
 	struct tsc2007 *ts = handle;
 
-	if (!ts->get_pendown_state || likely(ts->get_pendown_state())) {
-		disable_irq_nosync(ts->irq);
-		schedule_delayed_work(&ts->work,
-				      msecs_to_jiffies(ts->poll_delay));
-	}
+	if (!ts->get_pendown_state || likely(ts->get_pendown_state()))
+		return IRQ_WAKE_THREAD;
 
 	if (ts->clear_penirq)
 		ts->clear_penirq();
@@ -250,17 +237,40 @@ static irqreturn_t tsc2007_irq(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-static void tsc2007_free_irq(struct tsc2007 *ts)
+static void tsc2007_stop(struct tsc2007 *ts)
 {
-	free_irq(ts->irq, ts);
-	if (cancel_delayed_work_sync(&ts->work)) {
-		/*
-		 * Work was pending, therefore we need to enable
-		 * IRQ here to balance the disable_irq() done in the
-		 * interrupt handler.
-		 */
-		enable_irq(ts->irq);
+	ts->stopped = true;
+	mb();
+	wake_up(&ts->wait);
+
+	disable_irq(ts->irq);
+}
+
+static int tsc2007_open(struct input_dev *input_dev)
+{
+	struct tsc2007 *ts = input_get_drvdata(input_dev);
+	int err;
+
+	ts->stopped = false;
+	mb();
+
+	enable_irq(ts->irq);
+
+	/* Prepare for touch readings - power down ADC and enable PENIRQ */
+	err = tsc2007_xfer(ts, PWRDOWN);
+	if (err < 0) {
+		tsc2007_stop(ts);
+		return err;
 	}
+
+	return 0;
+}
+
+static void tsc2007_close(struct input_dev *input_dev)
+{
+	struct tsc2007 *ts = input_get_drvdata(input_dev);
+
+	tsc2007_stop(ts);
 }
 
 static int __devinit tsc2007_probe(struct i2c_client *client,
@@ -290,7 +300,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	ts->client = client;
 	ts->irq = client->irq;
 	ts->input = input_dev;
-	INIT_DELAYED_WORK(&ts->work, tsc2007_work);
+	init_waitqueue_head(&ts->wait);
 
 	ts->model             = pdata->model;
 	ts->x_plate_ohms      = pdata->x_plate_ohms;
@@ -300,6 +310,12 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	ts->get_pendown_state = pdata->get_pendown_state;
 	ts->clear_penirq      = pdata->clear_penirq;
 
+	if (pdata->x_plate_ohms == 0) {
+		dev_err(&client->dev, "x_plate_ohms is not set up in platform data");
+		err = -EINVAL;
+		goto err_free_mem;
+	}
+
 	snprintf(ts->phys, sizeof(ts->phys),
 		 "%s/input0", dev_name(&client->dev));
 
@@ -307,6 +323,11 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	input_dev->phys = ts->phys;
 	input_dev->id.bustype = BUS_I2C;
 
+	input_dev->open = tsc2007_open;
+	input_dev->close = tsc2007_close;
+
+	input_set_drvdata(input_dev, ts);
+
 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
@@ -318,17 +339,14 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	if (pdata->init_platform_hw)
 		pdata->init_platform_hw();
 
-	err = request_irq(ts->irq, tsc2007_irq, 0,
-			client->dev.driver->name, ts);
+	err = request_threaded_irq(ts->irq, tsc2007_hard_irq, tsc2007_soft_irq,
+				   IRQF_ONESHOT, client->dev.driver->name, ts);
 	if (err < 0) {
 		dev_err(&client->dev, "irq %d busy?\n", ts->irq);
 		goto err_free_mem;
 	}
 
-	/* Prepare for touch readings - power down ADC and enable PENIRQ */
-	err = tsc2007_xfer(ts, PWRDOWN);
-	if (err < 0)
-		goto err_free_irq;
+	tsc2007_stop(ts);
 
 	err = input_register_device(input_dev);
 	if (err)
@@ -339,7 +357,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	return 0;
 
  err_free_irq:
-	tsc2007_free_irq(ts);
+	free_irq(ts->irq, ts);
 	if (pdata->exit_platform_hw)
 		pdata->exit_platform_hw();
  err_free_mem:
@@ -353,7 +371,7 @@ static int __devexit tsc2007_remove(struct i2c_client *client)
 	struct tsc2007	*ts = i2c_get_clientdata(client);
 	struct tsc2007_platform_data *pdata = client->dev.platform_data;
 
-	tsc2007_free_irq(ts);
+	free_irq(ts->irq, ts);
 
 	if (pdata->exit_platform_hw)
 		pdata->exit_platform_hw();
diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c
new file mode 100644
index 00000000000..29d5ed4dd31
--- /dev/null
+++ b/drivers/input/touchscreen/tsc40.c
@@ -0,0 +1,184 @@
+/*
+ * TSC-40 serial touchscreen driver. It should be compatible with
+ * TSC-10 and 25.
+ *
+ * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ * License: GPLv2 as published by the FSF.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define PACKET_LENGTH  5
+struct tsc_ser {
+	struct input_dev *dev;
+	struct serio *serio;
+	u32 idx;
+	unsigned char data[PACKET_LENGTH];
+	char phys[32];
+};
+
+static void tsc_process_data(struct tsc_ser *ptsc)
+{
+	struct input_dev *dev = ptsc->dev;
+	u8 *data = ptsc->data;
+	u32 x;
+	u32 y;
+
+	x = ((data[1] & 0x03) << 8) | data[2];
+	y = ((data[3] & 0x03) << 8) | data[4];
+
+	input_report_abs(dev, ABS_X, x);
+	input_report_abs(dev, ABS_Y, y);
+	input_report_key(dev, BTN_TOUCH, 1);
+
+	input_sync(dev);
+}
+
+static irqreturn_t tsc_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct tsc_ser *ptsc = serio_get_drvdata(serio);
+	struct input_dev *dev = ptsc->dev;
+
+	ptsc->data[ptsc->idx] = data;
+	switch (ptsc->idx++) {
+	case 0:
+		if (unlikely((data & 0x3e) != 0x10)) {
+			dev_dbg(&serio->dev,
+				"unsynchronized packet start (0x%02x)\n", data);
+			ptsc->idx = 0;
+		} else if (!(data & 0x01)) {
+			input_report_key(dev, BTN_TOUCH, 0);
+			input_sync(dev);
+			ptsc->idx = 0;
+		}
+		break;
+
+	case 1:
+	case 3:
+		if (unlikely(data & 0xfc)) {
+			dev_dbg(&serio->dev,
+				"unsynchronized data 0x%02x at offset %d\n",
+				data, ptsc->idx - 1);
+			ptsc->idx = 0;
+		}
+		break;
+
+	case 4:
+		tsc_process_data(ptsc);
+		ptsc->idx = 0;
+		break;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int tsc_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct tsc_ser *ptsc;
+	struct input_dev *input_dev;
+	int error;
+
+	ptsc = kzalloc(sizeof(struct tsc_ser), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ptsc || !input_dev) {
+		error = -ENOMEM;
+		goto fail1;
+	}
+
+	ptsc->serio = serio;
+	ptsc->dev = input_dev;
+	snprintf(ptsc->phys, sizeof(ptsc->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "TSC-10/25/40 Serial TouchScreen";
+	input_dev->phys = ptsc->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_TSC40;
+	input_dev->id.product = 40;
+	input_dev->id.version = 0x0001;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+	input_set_abs_params(ptsc->dev, ABS_X, 0, 0x3ff, 0, 0);
+	input_set_abs_params(ptsc->dev, ABS_Y, 0, 0x3ff, 0, 0);
+	input_set_abs_params(ptsc->dev, ABS_PRESSURE, 0, 0, 0, 0);
+
+	serio_set_drvdata(serio, ptsc);
+
+	error = serio_open(serio, drv);
+	if (error)
+		goto fail2;
+
+	error = input_register_device(ptsc->dev);
+	if (error)
+		goto fail3;
+
+	return 0;
+
+fail3:
+	serio_close(serio);
+fail2:
+	serio_set_drvdata(serio, NULL);
+fail1:
+	input_free_device(input_dev);
+	kfree(ptsc);
+	return error;
+}
+
+static void tsc_disconnect(struct serio *serio)
+{
+	struct tsc_ser *ptsc = serio_get_drvdata(serio);
+
+	serio_close(serio);
+
+	input_unregister_device(ptsc->dev);
+	kfree(ptsc);
+
+	serio_set_drvdata(serio, NULL);
+}
+
+static struct serio_device_id tsc_serio_ids[] = {
+	{
+		.type   = SERIO_RS232,
+		.proto  = SERIO_TSC40,
+		.id     = SERIO_ANY,
+		.extra  = SERIO_ANY,
+	},
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(serio, tsc_serio_ids);
+
+#define DRIVER_DESC    "TSC-10/25/40 serial touchscreen driver"
+
+static struct serio_driver tsc_drv = {
+	.driver	= {
+		.name   = "tsc40",
+	},
+	.description    = DRIVER_DESC,
+	.id_table	= tsc_serio_ids,
+	.interrupt      = tsc_interrupt,
+	.connect	= tsc_connect,
+	.disconnect     = tsc_disconnect,
+};
+
+static int __init tsc_ser_init(void)
+{
+	return serio_register_driver(&tsc_drv);
+}
+module_init(tsc_ser_init);
+
+static void __exit tsc_exit(void)
+{
+	serio_unregister_driver(&tsc_drv);
+}
+module_exit(tsc_exit);
+
+MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index 7a45d68c351..217aa51135c 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -279,7 +279,7 @@ static int __devinit w90x900ts_probe(struct platform_device *pdev)
 
 	w90p910_ts->irq_num = platform_get_irq(pdev, 0);
 	if (request_irq(w90p910_ts->irq_num, w90p910_ts_interrupt,
-			IRQF_DISABLED, "w90p910ts", w90p910_ts)) {
+			0, "w90p910ts", w90p910_ts)) {
 		err = -EBUSY;
 		goto fail4;
 	}
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 9941d39df43..1569a3934ab 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -367,6 +367,20 @@ static int w8001_command(struct w8001 *w8001, unsigned char command,
 	return rc;
 }
 
+static int w8001_open(struct input_dev *dev)
+{
+	struct w8001 *w8001 = input_get_drvdata(dev);
+
+	return w8001_command(w8001, W8001_CMD_START, false);
+}
+
+static void w8001_close(struct input_dev *dev)
+{
+	struct w8001 *w8001 = input_get_drvdata(dev);
+
+	w8001_command(w8001, W8001_CMD_STOP, false);
+}
+
 static int w8001_setup(struct w8001 *w8001)
 {
 	struct input_dev *dev = w8001->dev;
@@ -476,7 +490,7 @@ static int w8001_setup(struct w8001 *w8001)
 
 	strlcat(w8001->name, " Touchscreen", sizeof(w8001->name));
 
-	return w8001_command(w8001, W8001_CMD_START, false);
+	return 0;
 }
 
 /*
@@ -487,12 +501,12 @@ static void w8001_disconnect(struct serio *serio)
 {
 	struct w8001 *w8001 = serio_get_drvdata(serio);
 
-	input_get_device(w8001->dev);
-	input_unregister_device(w8001->dev);
 	serio_close(serio);
-	serio_set_drvdata(serio, NULL);
-	input_put_device(w8001->dev);
+
+	input_unregister_device(w8001->dev);
 	kfree(w8001);
+
+	serio_set_drvdata(serio, NULL);
 }
 
 /*
@@ -536,6 +550,11 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
 	input_dev->id.version = 0x0100;
 	input_dev->dev.parent = &serio->dev;
 
+	input_dev->open = w8001_open;
+	input_dev->close = w8001_close;
+
+	input_set_drvdata(input_dev, w8001);
+
 	err = input_register_device(w8001->dev);
 	if (err)
 		goto fail3;