Merge branch 'linus' into perf/urgent

Merge back Linus's latest branch so that we pick up the uprobes changes.

( I tested this branch locally and while it's one from the middle of the
  merge window it's a good one to base further work off. )

Signed-off-by: Ingo Molnar <mingo@kernel.org>

22 files changed, 739 insertions, 246 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 75838d7710ce..98d263504eea 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -187,6 +187,23 @@ config TOUCHSCREEN_DA9034
 	  Say Y here to enable the support for the touchscreen found
 	  on Dialog Semiconductor DA9034 PMIC.
 
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called da9034-ts.
+
+config TOUCHSCREEN_DA9052
+	tristate "Dialog DA9052/DA9053 TSI"
+	depends on PMIC_DA9052
+	help
+	  Say Y here to support the touchscreen found on Dialog Semiconductor
+	  DA9052-BC and DA9053-AA/Bx PMICs.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called da9052_tsi.
+
 config TOUCHSCREEN_DYNAPRO
 	tristate "Dynapro serial touchscreen"
 	select SERIO
@@ -306,6 +323,18 @@ config TOUCHSCREEN_WACOM_W8001
 	  To compile this driver as a module, choose M here: the
 	  module will be called wacom_w8001.
 
+config TOUCHSCREEN_WACOM_I2C
+	tristate "Wacom Tablet support (I2C)"
+	depends on I2C
+	help
+	  Say Y here if you want to use the I2C version of the Wacom
+	  Pen Tablet.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called wacom_i2c.
+
 config TOUCHSCREEN_LPC32XX
 	tristate "LPC32XX touchscreen controller"
 	depends on ARCH_LPC32XX
@@ -635,6 +664,7 @@ config TOUCHSCREEN_USB_COMPOSITE
 	  - Zytronic controllers
 	  - Elo TouchSystems 2700 IntelliTouch
 	  - EasyTouch USB Touch Controller from Data Modul
+	  - e2i (Mimo monitors)
 
 	  Have a look at <http://linux.chapter7.ch/touchkit/> for
 	  a usage description and the required user-space stuff.
@@ -721,7 +751,7 @@ config TOUCHSCREEN_USB_ELO
 
 config TOUCHSCREEN_USB_E2I
 	default y
-	bool "e2i Touchscreen controller (e.g. from Mimo 740)"
+	bool "e2i Touchscreen controller (e.g. from Mimo 740)" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_ZYTRONIC
@@ -744,7 +774,7 @@ config TOUCHSCREEN_USB_EASYTOUCH
 	bool "EasyTouch USB Touch controller device support" if EMBEDDED
 	depends on TOUCHSCREEN_USB_COMPOSITE
 	help
-	  Say Y here if you have a EasyTouch USB Touch controller device support.
+	  Say Y here if you have an EasyTouch USB Touch controller.
 	  If unsure, say N.
 
 config TOUCHSCREEN_TOUCHIT213
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 3d5cf8cbf89c..eb8bfe1c1a46 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_TOUCHSCREEN_CYTTSP_CORE)	+= cyttsp_core.o
 obj-$(CONFIG_TOUCHSCREEN_CYTTSP_I2C)	+= cyttsp_i2c.o
 obj-$(CONFIG_TOUCHSCREEN_CYTTSP_SPI)	+= cyttsp_spi.o
 obj-$(CONFIG_TOUCHSCREEN_DA9034)	+= da9034-ts.o
+obj-$(CONFIG_TOUCHSCREEN_DA9052)	+= da9052_tsi.o
 obj-$(CONFIG_TOUCHSCREEN_DYNAPRO)	+= dynapro.o
 obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE)	+= hampshire.o
 obj-$(CONFIG_TOUCHSCREEN_GUNZE)		+= gunze.o
@@ -59,6 +60,7 @@ obj-$(CONFIG_TOUCHSCREEN_TSC2005)	+= tsc2005.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
 obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001)	+= wacom_w8001.o
+obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C)	+= wacom_i2c.o
 obj-$(CONFIG_TOUCHSCREEN_WM831X)	+= wm831x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX)	+= wm97xx-ts.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)	+= wm9705.o
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 19d4ea65ea01..42e645062c20 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -236,7 +236,6 @@ struct mxt_object {
 struct mxt_message {
 	u8 reportid;
 	u8 message[7];
-	u8 checksum;
 };
 
 struct mxt_finger {
@@ -326,17 +325,12 @@ static bool mxt_object_writable(unsigned int type)
 }
 
 static void mxt_dump_message(struct device *dev,
-				  struct mxt_message *message)
+			     struct mxt_message *message)
 {
-	dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
-	dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
-	dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
-	dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
-	dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
-	dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
-	dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
-	dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
-	dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
+	dev_dbg(dev, "reportid: %u\tmessage: %02x %02x %02x %02x %02x %02x %02x\n",
+		message->reportid, message->message[0], message->message[1],
+		message->message[2], message->message[3], message->message[4],
+		message->message[5], message->message[6]);
 }
 
 static int mxt_check_bootloader(struct i2c_client *client,
@@ -506,7 +500,7 @@ static int mxt_write_object(struct mxt_data *data,
 	u16 reg;
 
 	object = mxt_get_object(data, type);
-	if (!object)
+	if (!object || offset >= object->size + 1)
 		return -EINVAL;
 
 	reg = object->start_address;
@@ -1049,8 +1043,8 @@ static ssize_t mxt_update_fw_store(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(object, 0444, mxt_object_show, NULL);
-static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store);
+static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL);
+static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store);
 
 static struct attribute *mxt_attrs[] = {
 	&dev_attr_object.attr,
@@ -1201,7 +1195,7 @@ static int __devexit mxt_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int mxt_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -1239,13 +1233,10 @@ static int mxt_resume(struct device *dev)
 
 	return 0;
 }
-
-static const struct dev_pm_ops mxt_pm_ops = {
-	.suspend	= mxt_suspend,
-	.resume		= mxt_resume,
-};
 #endif
 
+static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume);
+
 static const struct i2c_device_id mxt_id[] = {
 	{ "qt602240_ts", 0 },
 	{ "atmel_mxt_ts", 0 },
@@ -1258,9 +1249,7 @@ static struct i2c_driver mxt_driver = {
 	.driver = {
 		.name	= "atmel_mxt_ts",
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
 		.pm	= &mxt_pm_ops,
-#endif
 	},
 	.probe		= mxt_probe,
 	.remove		= __devexit_p(mxt_remove),
diff --git a/drivers/input/touchscreen/da9052_tsi.c b/drivers/input/touchscreen/da9052_tsi.c
new file mode 100644
index 000000000000..e8df341090c0
--- /dev/null
+++ b/drivers/input/touchscreen/da9052_tsi.c
@@ -0,0 +1,370 @@
+/*
+ * TSI driver for Dialog DA9052
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ *  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.
+ *
+ */
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/da9052.h>
+
+#define TSI_PEN_DOWN_STATUS 0x40
+
+struct da9052_tsi {
+	struct da9052 *da9052;
+	struct input_dev *dev;
+	struct delayed_work ts_pen_work;
+	struct mutex mutex;
+	unsigned int irq_pendwn;
+	unsigned int irq_datardy;
+	bool stopped;
+	bool adc_on;
+};
+
+static void da9052_ts_adc_toggle(struct da9052_tsi *tsi, bool on)
+{
+	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 0, on);
+	tsi->adc_on = on;
+}
+
+static irqreturn_t da9052_ts_pendwn_irq(int irq, void *data)
+{
+	struct da9052_tsi *tsi = data;
+
+	if (!tsi->stopped) {
+		/* Mask PEN_DOWN event and unmask TSI_READY event */
+		disable_irq_nosync(tsi->irq_pendwn);
+		enable_irq(tsi->irq_datardy);
+
+		da9052_ts_adc_toggle(tsi, true);
+
+		schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static void da9052_ts_read(struct da9052_tsi *tsi)
+{
+	struct input_dev *input = tsi->dev;
+	int ret;
+	u16 x, y, z;
+	u8 v;
+
+	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_X_MSB_REG);
+	if (ret < 0)
+		return;
+
+	x = (u16) ret;
+
+	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Y_MSB_REG);
+	if (ret < 0)
+		return;
+
+	y = (u16) ret;
+
+	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_Z_MSB_REG);
+	if (ret < 0)
+		return;
+
+	z = (u16) ret;
+
+	ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);
+	if (ret < 0)
+		return;
+
+	v = (u8) ret;
+
+	x = ((x << 2) & 0x3fc) | (v & 0x3);
+	y = ((y << 2) & 0x3fc) | ((v & 0xc) >> 2);
+	z = ((z << 2) & 0x3fc) | ((v & 0x30) >> 4);
+
+	input_report_key(input, BTN_TOUCH, 1);
+	input_report_abs(input, ABS_X, x);
+	input_report_abs(input, ABS_Y, y);
+	input_report_abs(input, ABS_PRESSURE, z);
+	input_sync(input);
+}
+
+static irqreturn_t da9052_ts_datardy_irq(int irq, void *data)
+{
+	struct da9052_tsi *tsi = data;
+
+	da9052_ts_read(tsi);
+
+	return IRQ_HANDLED;
+}
+
+static void da9052_ts_pen_work(struct work_struct *work)
+{
+	struct da9052_tsi *tsi = container_of(work, struct da9052_tsi,
+					      ts_pen_work.work);
+	if (!tsi->stopped) {
+		int ret = da9052_reg_read(tsi->da9052, DA9052_TSI_LSB_REG);
+		if (ret < 0 || (ret & TSI_PEN_DOWN_STATUS)) {
+			/* Pen is still DOWN (or read error) */
+			schedule_delayed_work(&tsi->ts_pen_work, HZ / 50);
+		} else {
+			struct input_dev *input = tsi->dev;
+
+			/* Pen UP */
+			da9052_ts_adc_toggle(tsi, false);
+
+			/* Report Pen UP */
+			input_report_key(input, BTN_TOUCH, 0);
+			input_report_abs(input, ABS_PRESSURE, 0);
+			input_sync(input);
+
+			/*
+			 * FIXME: Fixes the unhandled irq issue when quick
+			 * pen down and pen up events occurs
+			 */
+			ret = da9052_reg_update(tsi->da9052,
+						DA9052_EVENT_B_REG, 0xC0, 0xC0);
+			if (ret < 0)
+				return;
+
+			/* Mask TSI_READY event and unmask PEN_DOWN event */
+			disable_irq(tsi->irq_datardy);
+			enable_irq(tsi->irq_pendwn);
+		}
+	}
+}
+
+static int __devinit da9052_ts_configure_gpio(struct da9052 *da9052)
+{
+	int error;
+
+	error = da9052_reg_update(da9052, DA9052_GPIO_2_3_REG, 0x30, 0);
+	if (error < 0)
+		return error;
+
+	error = da9052_reg_update(da9052, DA9052_GPIO_4_5_REG, 0x33, 0);
+	if (error < 0)
+		return error;
+
+	error = da9052_reg_update(da9052, DA9052_GPIO_6_7_REG, 0x33, 0);
+	if (error < 0)
+		return error;
+
+	return 0;
+}
+
+static int __devinit da9052_configure_tsi(struct da9052_tsi *tsi)
+{
+	int error;
+
+	error = da9052_ts_configure_gpio(tsi->da9052);
+	if (error)
+		return error;
+
+	/* Measure TSI sample every 1ms */
+	error = da9052_reg_update(tsi->da9052, DA9052_ADC_CONT_REG,
+				  1 << 6, 1 << 6);
+	if (error < 0)
+		return error;
+
+	/* TSI_DELAY: 3 slots, TSI_SKIP: 0 slots, TSI_MODE: XYZP */
+	error = da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 0xFC, 0xC0);
+	if (error < 0)
+		return error;
+
+	/* Supply TSIRef through LD09 */
+	error = da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x59);
+	if (error < 0)
+		return error;
+
+	return 0;
+}
+
+static int da9052_ts_input_open(struct input_dev *input_dev)
+{
+	struct da9052_tsi *tsi = input_get_drvdata(input_dev);
+
+	tsi->stopped = false;
+	mb();
+
+	/* Unmask PEN_DOWN event */
+	enable_irq(tsi->irq_pendwn);
+
+	/* Enable Pen Detect Circuit */
+	return da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG,
+				 1 << 1, 1 << 1);
+}
+
+static void da9052_ts_input_close(struct input_dev *input_dev)
+{
+	struct da9052_tsi *tsi = input_get_drvdata(input_dev);
+
+	tsi->stopped = true;
+	mb();
+	disable_irq(tsi->irq_pendwn);
+	cancel_delayed_work_sync(&tsi->ts_pen_work);
+
+	if (tsi->adc_on) {
+		disable_irq(tsi->irq_datardy);
+		da9052_ts_adc_toggle(tsi, false);
+
+		/*
+		 * If ADC was on that means that pendwn IRQ was disabled
+		 * twice and we need to enable it to keep enable/disable
+		 * counter balanced. IRQ is still off though.
+		 */
+		enable_irq(tsi->irq_pendwn);
+	}
+
+	/* Disable Pen Detect Circuit */
+	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);
+}
+
+static int __devinit da9052_ts_probe(struct platform_device *pdev)
+{
+	struct da9052 *da9052;
+	struct da9052_tsi *tsi;
+	struct input_dev *input_dev;
+	int irq_pendwn;
+	int irq_datardy;
+	int error;
+
+	da9052 = dev_get_drvdata(pdev->dev.parent);
+	if (!da9052)
+		return -EINVAL;
+
+	irq_pendwn = platform_get_irq_byname(pdev, "PENDWN");
+	irq_datardy = platform_get_irq_byname(pdev, "TSIRDY");
+	if (irq_pendwn < 0 || irq_datardy < 0) {
+		dev_err(da9052->dev, "Unable to determine device interrupts\n");
+		return -ENXIO;
+	}
+
+	tsi = kzalloc(sizeof(struct da9052_tsi), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!tsi || !input_dev) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	tsi->da9052 = da9052;
+	tsi->dev = input_dev;
+	tsi->irq_pendwn = da9052->irq_base + irq_pendwn;
+	tsi->irq_datardy = da9052->irq_base + irq_datardy;
+	tsi->stopped = true;
+	INIT_DELAYED_WORK(&tsi->ts_pen_work, da9052_ts_pen_work);
+
+	input_dev->id.version = 0x0101;
+	input_dev->id.vendor = 0x15B6;
+	input_dev->id.product = 0x9052;
+	input_dev->name = "Dialog DA9052 TouchScreen Driver";
+	input_dev->dev.parent = &pdev->dev;
+	input_dev->open = da9052_ts_input_open;
+	input_dev->close = da9052_ts_input_close;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	input_set_abs_params(input_dev, ABS_X, 0, 1023, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, 1023, 0, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1023, 0, 0);
+
+	input_set_drvdata(input_dev, tsi);
+
+	/* Disable Pen Detect Circuit */
+	da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, 1 << 1, 0);
+
+	/* Disable ADC */
+	da9052_ts_adc_toggle(tsi, false);
+
+	error = request_threaded_irq(tsi->irq_pendwn,
+				     NULL, da9052_ts_pendwn_irq,
+				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				     "PENDWN", tsi);
+	if (error) {
+		dev_err(tsi->da9052->dev,
+			"Failed to register PENDWN IRQ %d, error = %d\n",
+			tsi->irq_pendwn, error);
+		goto err_free_mem;
+	}
+
+	error = request_threaded_irq(tsi->irq_datardy,
+				     NULL, da9052_ts_datardy_irq,
+				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				     "TSIRDY", tsi);
+	if (error) {
+		dev_err(tsi->da9052->dev,
+			"Failed to register TSIRDY IRQ %d, error = %d\n",
+			tsi->irq_datardy, error);
+		goto err_free_pendwn_irq;
+	}
+
+	/* Mask PEN_DOWN and TSI_READY events */
+	disable_irq(tsi->irq_pendwn);
+	disable_irq(tsi->irq_datardy);
+
+	error = da9052_configure_tsi(tsi);
+	if (error)
+		goto err_free_datardy_irq;
+
+	error = input_register_device(tsi->dev);
+	if (error)
+		goto err_free_datardy_irq;
+
+	platform_set_drvdata(pdev, tsi);
+
+	return 0;
+
+err_free_datardy_irq:
+	free_irq(tsi->irq_datardy, tsi);
+err_free_pendwn_irq:
+	free_irq(tsi->irq_pendwn, tsi);
+err_free_mem:
+	kfree(tsi);
+	input_free_device(input_dev);
+
+	return error;
+}
+
+static int  __devexit da9052_ts_remove(struct platform_device *pdev)
+{
+	struct da9052_tsi *tsi = platform_get_drvdata(pdev);
+
+	da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x19);
+
+	free_irq(tsi->irq_pendwn, tsi);
+	free_irq(tsi->irq_datardy, tsi);
+
+	input_unregister_device(tsi->dev);
+	kfree(tsi);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver da9052_tsi_driver = {
+	.probe	= da9052_ts_probe,
+	.remove	= __devexit_p(da9052_ts_remove),
+	.driver	= {
+		.name	= "da9052-tsi",
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(da9052_tsi_driver);
+
+MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9052");
+MODULE_AUTHOR("Anthony Olech <Anthony.Olech@diasemi.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-tsi");
diff --git a/drivers/input/touchscreen/dynapro.c b/drivers/input/touchscreen/dynapro.c
index 455353908bdf..1809677a6513 100644
--- a/drivers/input/touchscreen/dynapro.c
+++ b/drivers/input/touchscreen/dynapro.c
@@ -188,19 +188,4 @@ static struct serio_driver dynapro_drv = {
 	.disconnect	= dynapro_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init dynapro_init(void)
-{
-	return serio_register_driver(&dynapro_drv);
-}
-
-static void __exit dynapro_exit(void)
-{
-	serio_unregister_driver(&dynapro_drv);
-}
-
-module_init(dynapro_init);
-module_exit(dynapro_exit);
+module_serio_driver(dynapro_drv);
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index 486d31ba9c09..957423d1471d 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -405,19 +405,4 @@ static struct serio_driver elo_drv = {
 	.disconnect	= elo_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init elo_init(void)
-{
-	return serio_register_driver(&elo_drv);
-}
-
-static void __exit elo_exit(void)
-{
-	serio_unregister_driver(&elo_drv);
-}
-
-module_init(elo_init);
-module_exit(elo_exit);
+module_serio_driver(elo_drv);
diff --git a/drivers/input/touchscreen/fujitsu_ts.c b/drivers/input/touchscreen/fujitsu_ts.c
index 80b21800355f..10794ddbdf58 100644
--- a/drivers/input/touchscreen/fujitsu_ts.c
+++ b/drivers/input/touchscreen/fujitsu_ts.c
@@ -175,15 +175,4 @@ static struct serio_driver fujitsu_drv = {
 	.disconnect	= fujitsu_disconnect,
 };
 
-static int __init fujitsu_init(void)
-{
-	return serio_register_driver(&fujitsu_drv);
-}
-
-static void __exit fujitsu_exit(void)
-{
-	serio_unregister_driver(&fujitsu_drv);
-}
-
-module_init(fujitsu_init);
-module_exit(fujitsu_exit);
+module_serio_driver(fujitsu_drv);
diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
index a54f90e02ab6..41c71766bf18 100644
--- a/drivers/input/touchscreen/gunze.c
+++ b/drivers/input/touchscreen/gunze.c
@@ -186,19 +186,4 @@ static struct serio_driver gunze_drv = {
 	.disconnect	= gunze_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init gunze_init(void)
-{
-	return serio_register_driver(&gunze_drv);
-}
-
-static void __exit gunze_exit(void)
-{
-	serio_unregister_driver(&gunze_drv);
-}
-
-module_init(gunze_init);
-module_exit(gunze_exit);
+module_serio_driver(gunze_drv);
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index 6107e563e681..b9e8686a6f1c 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -476,19 +476,4 @@ static struct serio_driver h3600ts_drv = {
 	.disconnect	= h3600ts_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init h3600ts_init(void)
-{
-	return serio_register_driver(&h3600ts_drv);
-}
-
-static void __exit h3600ts_exit(void)
-{
-	serio_unregister_driver(&h3600ts_drv);
-}
-
-module_init(h3600ts_init);
-module_exit(h3600ts_exit);
+module_serio_driver(h3600ts_drv);
diff --git a/drivers/input/touchscreen/hampshire.c b/drivers/input/touchscreen/hampshire.c
index 2da6cc31bb21..0cc47ea98acf 100644
--- a/drivers/input/touchscreen/hampshire.c
+++ b/drivers/input/touchscreen/hampshire.c
@@ -187,19 +187,4 @@ static struct serio_driver hampshire_drv = {
 	.disconnect	= hampshire_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init hampshire_init(void)
-{
-	return serio_register_driver(&hampshire_drv);
-}
-
-static void __exit hampshire_exit(void)
-{
-	serio_unregister_driver(&hampshire_drv);
-}
-
-module_init(hampshire_init);
-module_exit(hampshire_exit);
+module_serio_driver(hampshire_drv);
diff --git a/drivers/input/touchscreen/inexio.c b/drivers/input/touchscreen/inexio.c
index 192ade0a0fb9..a29c99c32245 100644
--- a/drivers/input/touchscreen/inexio.c
+++ b/drivers/input/touchscreen/inexio.c
@@ -189,19 +189,4 @@ static struct serio_driver inexio_drv = {
 	.disconnect	= inexio_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init inexio_init(void)
-{
-	return serio_register_driver(&inexio_drv);
-}
-
-static void __exit inexio_exit(void)
-{
-	serio_unregister_driver(&inexio_drv);
-}
-
-module_init(inexio_init);
-module_exit(inexio_exit);
+module_serio_driver(inexio_drv);
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
index afcd0691ec67..4c2b8ed3bf16 100644
--- a/drivers/input/touchscreen/lpc32xx_ts.c
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -22,6 +22,7 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 /*
  * Touchscreen controller register offsets
@@ -383,6 +384,14 @@ static const struct dev_pm_ops lpc32xx_ts_pm_ops = {
 #define LPC32XX_TS_PM_OPS NULL
 #endif
 
+#ifdef CONFIG_OF
+static struct of_device_id lpc32xx_tsc_of_match[] = {
+	{ .compatible = "nxp,lpc3220-tsc", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_tsc_of_match);
+#endif
+
 static struct platform_driver lpc32xx_ts_driver = {
 	.probe		= lpc32xx_ts_probe,
 	.remove		= __devexit_p(lpc32xx_ts_remove),
@@ -390,6 +399,7 @@ static struct platform_driver lpc32xx_ts_driver = {
 		.name	= MOD_NAME,
 		.owner	= THIS_MODULE,
 		.pm	= LPC32XX_TS_PM_OPS,
+		.of_match_table = of_match_ptr(lpc32xx_tsc_of_match),
 	},
 };
 module_platform_driver(lpc32xx_ts_driver);
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index 9077228418b7..eb66b7c37c2f 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -202,19 +202,4 @@ static struct serio_driver mtouch_drv = {
 	.disconnect	= mtouch_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init mtouch_init(void)
-{
-	return serio_register_driver(&mtouch_drv);
-}
-
-static void __exit mtouch_exit(void)
-{
-	serio_unregister_driver(&mtouch_drv);
-}
-
-module_init(mtouch_init);
-module_exit(mtouch_exit);
+module_serio_driver(mtouch_drv);
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 4c012fb2b01e..4ccde45b9da2 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -317,19 +317,4 @@ static struct serio_driver pm_drv = {
 	.disconnect	= pm_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init pm_init(void)
-{
-	return serio_register_driver(&pm_drv);
-}
-
-static void __exit pm_exit(void)
-{
-	serio_unregister_driver(&pm_drv);
-}
-
-module_init(pm_init);
-module_exit(pm_exit);
+module_serio_driver(pm_drv);
diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
index cbbf71b22696..6cb68a1981bf 100644
--- a/drivers/input/touchscreen/st1232.c
+++ b/drivers/input/touchscreen/st1232.c
@@ -218,7 +218,7 @@ static int __devexit st1232_ts_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int st1232_ts_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -243,18 +243,25 @@ static int st1232_ts_resume(struct device *dev)
 	return 0;
 }
 
-static const struct dev_pm_ops st1232_ts_pm_ops = {
-	.suspend	= st1232_ts_suspend,
-	.resume		= st1232_ts_resume,
-};
 #endif
 
+static SIMPLE_DEV_PM_OPS(st1232_ts_pm_ops,
+			 st1232_ts_suspend, st1232_ts_resume);
+
 static const struct i2c_device_id st1232_ts_id[] = {
 	{ ST1232_TS_NAME, 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, st1232_ts_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id st1232_ts_dt_ids[] __devinitconst = {
+	{ .compatible = "sitronix,st1232", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, st1232_ts_dt_ids);
+#endif
+
 static struct i2c_driver st1232_ts_driver = {
 	.probe		= st1232_ts_probe,
 	.remove		= __devexit_p(st1232_ts_remove),
@@ -262,9 +269,8 @@ static struct i2c_driver st1232_ts_driver = {
 	.driver = {
 		.name	= ST1232_TS_NAME,
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
+		.of_match_table = of_match_ptr(st1232_ts_dt_ids),
 		.pm	= &st1232_ts_pm_ops,
-#endif
 	},
 };
 
diff --git a/drivers/input/touchscreen/touchit213.c b/drivers/input/touchscreen/touchit213.c
index d1297ba19daf..5f29e5b8e1c1 100644
--- a/drivers/input/touchscreen/touchit213.c
+++ b/drivers/input/touchscreen/touchit213.c
@@ -216,19 +216,4 @@ static struct serio_driver touchit213_drv = {
 	.disconnect	= touchit213_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init touchit213_init(void)
-{
-	return serio_register_driver(&touchit213_drv);
-}
-
-static void __exit touchit213_exit(void)
-{
-	serio_unregister_driver(&touchit213_drv);
-}
-
-module_init(touchit213_init);
-module_exit(touchit213_exit);
+module_serio_driver(touchit213_drv);
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
index 3a5c142c2a78..8a2887daf194 100644
--- a/drivers/input/touchscreen/touchright.c
+++ b/drivers/input/touchscreen/touchright.c
@@ -176,19 +176,4 @@ static struct serio_driver tr_drv = {
 	.disconnect	= tr_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init tr_init(void)
-{
-	return serio_register_driver(&tr_drv);
-}
-
-static void __exit tr_exit(void)
-{
-	serio_unregister_driver(&tr_drv);
-}
-
-module_init(tr_init);
-module_exit(tr_exit);
+module_serio_driver(tr_drv);
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
index 763a656a59f8..588cdcb839dd 100644
--- a/drivers/input/touchscreen/touchwin.c
+++ b/drivers/input/touchscreen/touchwin.c
@@ -183,19 +183,4 @@ static struct serio_driver tw_drv = {
 	.disconnect	= tw_disconnect,
 };
 
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init tw_init(void)
-{
-	return serio_register_driver(&tw_drv);
-}
-
-static void __exit tw_exit(void)
-{
-	serio_unregister_driver(&tw_drv);
-}
-
-module_init(tw_init);
-module_exit(tw_exit);
+module_serio_driver(tw_drv);
diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c
index 29d5ed4dd31c..63209aaa55f0 100644
--- a/drivers/input/touchscreen/tsc40.c
+++ b/drivers/input/touchscreen/tsc40.c
@@ -167,17 +167,7 @@ static struct serio_driver tsc_drv = {
 	.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_serio_driver(tsc_drv);
 
 MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
 MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c
new file mode 100644
index 000000000000..35572575d34a
--- /dev/null
+++ b/drivers/input/touchscreen/wacom_i2c.c
@@ -0,0 +1,282 @@
+/*
+ * Wacom Penabled Driver for I2C
+ *
+ * Copyright (c) 2011 Tatsunosuke Tobita, Wacom.
+ * <tobita.tatsunosuke@wacom.co.jp>
+ *
+ * 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 of 2 of the License,
+ * or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <asm/unaligned.h>
+
+#define WACOM_CMD_QUERY0	0x04
+#define WACOM_CMD_QUERY1	0x00
+#define WACOM_CMD_QUERY2	0x33
+#define WACOM_CMD_QUERY3	0x02
+#define WACOM_CMD_THROW0	0x05
+#define WACOM_CMD_THROW1	0x00
+#define WACOM_QUERY_SIZE	19
+#define WACOM_RETRY_CNT		100
+
+struct wacom_features {
+	int x_max;
+	int y_max;
+	int pressure_max;
+	char fw_version;
+};
+
+struct wacom_i2c {
+	struct i2c_client *client;
+	struct input_dev *input;
+	u8 data[WACOM_QUERY_SIZE];
+};
+
+static int wacom_query_device(struct i2c_client *client,
+			      struct wacom_features *features)
+{
+	int ret;
+	u8 cmd1[] = { WACOM_CMD_QUERY0, WACOM_CMD_QUERY1,
+			WACOM_CMD_QUERY2, WACOM_CMD_QUERY3 };
+	u8 cmd2[] = { WACOM_CMD_THROW0, WACOM_CMD_THROW1 };
+	u8 data[WACOM_QUERY_SIZE];
+	struct i2c_msg msgs[] = {
+		{
+			.addr = client->addr,
+			.flags = 0,
+			.len = sizeof(cmd1),
+			.buf = cmd1,
+		},
+		{
+			.addr = client->addr,
+			.flags = 0,
+			.len = sizeof(cmd2),
+			.buf = cmd2,
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = sizeof(data),
+			.buf = data,
+		},
+	};
+
+	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+	if (ret < 0)
+		return ret;
+	if (ret != ARRAY_SIZE(msgs))
+		return -EIO;
+
+	features->x_max = get_unaligned_le16(&data[3]);
+	features->y_max = get_unaligned_le16(&data[5]);
+	features->pressure_max = get_unaligned_le16(&data[11]);
+	features->fw_version = get_unaligned_le16(&data[13]);
+
+	dev_dbg(&client->dev,
+		"x_max:%d, y_max:%d, pressure:%d, fw:%d\n",
+		features->x_max, features->y_max,
+		features->pressure_max, features->fw_version);
+
+	return 0;
+}
+
+static irqreturn_t wacom_i2c_irq(int irq, void *dev_id)
+{
+	struct wacom_i2c *wac_i2c = dev_id;
+	struct input_dev *input = wac_i2c->input;
+	u8 *data = wac_i2c->data;
+	unsigned int x, y, pressure;
+	unsigned char tsw, f1, f2, ers;
+	int error;
+
+	error = i2c_master_recv(wac_i2c->client,
+				wac_i2c->data, sizeof(wac_i2c->data));
+	if (error < 0)
+		goto out;
+
+	tsw = data[3] & 0x01;
+	ers = data[3] & 0x04;
+	f1 = data[3] & 0x02;
+	f2 = data[3] & 0x10;
+	x = le16_to_cpup((__le16 *)&data[4]);
+	y = le16_to_cpup((__le16 *)&data[6]);
+	pressure = le16_to_cpup((__le16 *)&data[8]);
+
+	input_report_key(input, BTN_TOUCH, tsw || ers);
+	input_report_key(input, BTN_TOOL_PEN, tsw);
+	input_report_key(input, BTN_TOOL_RUBBER, ers);
+	input_report_key(input, BTN_STYLUS, f1);
+	input_report_key(input, BTN_STYLUS2, f2);
+	input_report_abs(input, ABS_X, x);
+	input_report_abs(input, ABS_Y, y);
+	input_report_abs(input, ABS_PRESSURE, pressure);
+	input_sync(input);
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int wacom_i2c_open(struct input_dev *dev)
+{
+	struct wacom_i2c *wac_i2c = input_get_drvdata(dev);
+	struct i2c_client *client = wac_i2c->client;
+
+	enable_irq(client->irq);
+
+	return 0;
+}
+
+static void wacom_i2c_close(struct input_dev *dev)
+{
+	struct wacom_i2c *wac_i2c = input_get_drvdata(dev);
+	struct i2c_client *client = wac_i2c->client;
+
+	disable_irq(client->irq);
+}
+
+static int __devinit wacom_i2c_probe(struct i2c_client *client,
+				     const struct i2c_device_id *id)
+{
+	struct wacom_i2c *wac_i2c;
+	struct input_dev *input;
+	struct wacom_features features;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "i2c_check_functionality error\n");
+		return -EIO;
+	}
+
+	error = wacom_query_device(client, &features);
+	if (error)
+		return error;
+
+	wac_i2c = kzalloc(sizeof(*wac_i2c), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!wac_i2c || !input) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	wac_i2c->client = client;
+	wac_i2c->input = input;
+
+	input->name = "Wacom I2C Digitizer";
+	input->id.bustype = BUS_I2C;
+	input->id.vendor = 0x56a;
+	input->id.version = features.fw_version;
+	input->dev.parent = &client->dev;
+	input->open = wacom_i2c_open;
+	input->close = wacom_i2c_close;
+
+	input->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	__set_bit(BTN_TOOL_PEN, input->keybit);
+	__set_bit(BTN_TOOL_RUBBER, input->keybit);
+	__set_bit(BTN_STYLUS, input->keybit);
+	__set_bit(BTN_STYLUS2, input->keybit);
+	__set_bit(BTN_TOUCH, input->keybit);
+
+	input_set_abs_params(input, ABS_X, 0, features.x_max, 0, 0);
+	input_set_abs_params(input, ABS_Y, 0, features.y_max, 0, 0);
+	input_set_abs_params(input, ABS_PRESSURE,
+			     0, features.pressure_max, 0, 0);
+
+	input_set_drvdata(input, wac_i2c);
+
+	error = request_threaded_irq(client->irq, NULL, wacom_i2c_irq,
+				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				     "wacom_i2c", wac_i2c);
+	if (error) {
+		dev_err(&client->dev,
+			"Failed to enable IRQ, error: %d\n", error);
+		goto err_free_mem;
+	}
+
+	/* Disable the IRQ, we'll enable it in wac_i2c_open() */
+	disable_irq(client->irq);
+
+	error = input_register_device(wac_i2c->input);
+	if (error) {
+		dev_err(&client->dev,
+			"Failed to register input device, error: %d\n", error);
+		goto err_free_irq;
+	}
+
+	i2c_set_clientdata(client, wac_i2c);
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, wac_i2c);
+err_free_mem:
+	input_free_device(input);
+	kfree(wac_i2c);
+
+	return error;
+}
+
+static int __devexit wacom_i2c_remove(struct i2c_client *client)
+{
+	struct wacom_i2c *wac_i2c = i2c_get_clientdata(client);
+
+	free_irq(client->irq, wac_i2c);
+	input_unregister_device(wac_i2c->input);
+	kfree(wac_i2c);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int wacom_i2c_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	disable_irq(client->irq);
+
+	return 0;
+}
+
+static int wacom_i2c_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	enable_irq(client->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(wacom_i2c_pm, wacom_i2c_suspend, wacom_i2c_resume);
+
+static const struct i2c_device_id wacom_i2c_id[] = {
+	{ "WAC_I2C_EMR", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, wacom_i2c_id);
+
+static struct i2c_driver wacom_i2c_driver = {
+	.driver	= {
+		.name	= "wacom_i2c",
+		.owner	= THIS_MODULE,
+		.pm	= &wacom_i2c_pm,
+	},
+
+	.probe		= wacom_i2c_probe,
+	.remove		= __devexit_p(wacom_i2c_remove),
+	.id_table	= wacom_i2c_id,
+};
+module_i2c_driver(wacom_i2c_driver);
+
+MODULE_AUTHOR("Tatsunosuke Tobita <tobita.tatsunosuke@wacom.co.jp>");
+MODULE_DESCRIPTION("WACOM EMR I2C Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 1569a3934ab2..8f9ad2f893b8 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -594,15 +594,4 @@ static struct serio_driver w8001_drv = {
 	.disconnect	= w8001_disconnect,
 };
 
-static int __init w8001_init(void)
-{
-	return serio_register_driver(&w8001_drv);
-}
-
-static void __exit w8001_exit(void)
-{
-	serio_unregister_driver(&w8001_drv);
-}
-
-module_init(w8001_init);
-module_exit(w8001_exit);
+module_serio_driver(w8001_drv);
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 4bc851a9dc3d..e83410721e38 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -260,15 +260,16 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev)
 	 * If we have a direct IRQ use it, otherwise use the interrupt
 	 * from the WM831x IRQ controller.
 	 */
+	wm831x_ts->data_irq = wm831x_irq(wm831x,
+					 platform_get_irq_byname(pdev,
+								 "TCHDATA"));
 	if (pdata && pdata->data_irq)
 		wm831x_ts->data_irq = pdata->data_irq;
-	else
-		wm831x_ts->data_irq = platform_get_irq_byname(pdev, "TCHDATA");
 
+	wm831x_ts->pd_irq = wm831x_irq(wm831x,
+				       platform_get_irq_byname(pdev, "TCHPD"));
 	if (pdata && pdata->pd_irq)
 		wm831x_ts->pd_irq = pdata->pd_irq;
-	else
-		wm831x_ts->pd_irq = platform_get_irq_byname(pdev, "TCHPD");
 
 	if (pdata)
 		wm831x_ts->pressure = pdata->pressure;