Merge branch 'next' into for-linus

9 files changed, 2414 insertions, 1458 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 07ac77d393a..112ec55f293 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -86,6 +86,18 @@ config TOUCHSCREEN_AD7879_SPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad7879-spi.
 
+config TOUCHSCREEN_ATMEL_MXT
+	tristate "Atmel mXT I2C Touchscreen"
+	depends on I2C
+	help
+	  Say Y here if you have Atmel mXT series I2C touchscreen,
+	  such as AT42QT602240/ATMXT224, connected to your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called atmel_mxt_ts.
+
 config TOUCHSCREEN_BITSY
 	tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
 	depends on SA1100_BITSY
@@ -339,18 +351,6 @@ config TOUCHSCREEN_PENMOUNT
 	  To compile this driver as a module, choose M here: the
 	  module will be called penmount.
 
-config TOUCHSCREEN_QT602240
-	tristate "QT602240 I2C Touchscreen"
-	depends on I2C
-	help
-	  Say Y here if you have the AT42QT602240/ATMXT224 I2C touchscreen
-	  connected to your system.
-
-	  If unsure, say N.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called qt602240_ts.
-
 config TOUCHSCREEN_MIGOR
 	tristate "Renesas MIGO-R touchscreen"
 	depends on SH_MIGOR && I2C
@@ -423,6 +423,16 @@ config TOUCHSCREEN_UCB1400
 	  To compile this driver as a module, choose M here: the
 	  module will be called ucb1400_ts.
 
+config TOUCHSCREEN_WM831X
+	tristate "Support for WM831x touchscreen controllers"
+	depends on MFD_WM831X
+	help
+	  This enables support for the touchscreen controller on the WM831x
+	  series of PMICs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wm831x-ts.
+
 config TOUCHSCREEN_WM97XX
 	tristate "Support for WM97xx AC97 touchscreen controllers"
 	depends on AC97_BUS
@@ -540,62 +550,62 @@ config TOUCHSCREEN_MC13783
 
 config TOUCHSCREEN_USB_EGALAX
 	default y
-	bool "eGalax, eTurboTouch CT-410/510/700 device support" if EMBEDDED
+	bool "eGalax, eTurboTouch CT-410/510/700 device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_PANJIT
 	default y
-	bool "PanJit device support" if EMBEDDED
+	bool "PanJit device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_3M
 	default y
-	bool "3M/Microtouch EX II series device support" if EMBEDDED
+	bool "3M/Microtouch EX II series device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_ITM
 	default y
-	bool "ITM device support" if EMBEDDED
+	bool "ITM device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_ETURBO
 	default y
-	bool "eTurboTouch (non-eGalax compatible) device support" if EMBEDDED
+	bool "eTurboTouch (non-eGalax compatible) device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_GUNZE
 	default y
-	bool "Gunze AHL61 device support" if EMBEDDED
+	bool "Gunze AHL61 device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_DMC_TSC10
 	default y
-	bool "DMC TSC-10/25 device support" if EMBEDDED
+	bool "DMC TSC-10/25 device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_IRTOUCH
 	default y
-	bool "IRTOUCHSYSTEMS/UNITOP device support" if EMBEDDED
+	bool "IRTOUCHSYSTEMS/UNITOP device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_IDEALTEK
 	default y
-	bool "IdealTEK URTC1000 device support" if EMBEDDED
+	bool "IdealTEK URTC1000 device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_GENERAL_TOUCH
 	default y
-	bool "GeneralTouch Touchscreen device support" if EMBEDDED
+	bool "GeneralTouch Touchscreen device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_GOTOP
 	default y
-	bool "GoTop Super_Q2/GogoPen/PenPower tablet device support" if EMBEDDED
+	bool "GoTop Super_Q2/GogoPen/PenPower tablet device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_JASTEC
 	default y
-	bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EMBEDDED
+	bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_E2I
@@ -605,17 +615,17 @@ config TOUCHSCREEN_USB_E2I
 
 config TOUCHSCREEN_USB_ZYTRONIC
 	default y
-	bool "Zytronic controller" if EMBEDDED
+	bool "Zytronic controller" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_ETT_TC45USB
 	default y
-	bool "ET&T USB series TC4UM/TC5UH touchscreen controler support" if EMBEDDED
+	bool "ET&T USB series TC4UM/TC5UH touchscreen controller support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_USB_NEXIO
 	default y
-	bool "NEXIO/iNexio device support" if EMBEDDED
+	bool "NEXIO/iNexio device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
 config TOUCHSCREEN_TOUCHIT213
@@ -629,6 +639,17 @@ config TOUCHSCREEN_TOUCHIT213
 	  To compile this driver as a module, choose M here: the
 	  module will be called touchit213.
 
+config TOUCHSCREEN_TSC2005
+        tristate "TSC2005 based touchscreens"
+        depends on SPI_MASTER
+        help
+          Say Y here if you have a TSC2005 based touchscreen.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tsc2005.
+
 config TOUCHSCREEN_TSC2007
 	tristate "TSC2007 based touchscreens"
 	depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 718bcc81495..ca94098d4c9 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879)	+= ad7879.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C)	+= ad7879-i2c.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI)	+= ad7879-spi.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)	+= ads7846.o
+obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT)	+= atmel_mxt_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC)	+= atmel_tsadcc.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)		+= h3600_ts_input.o
 obj-$(CONFIG_TOUCHSCREEN_BU21013)       += bu21013_ts.o
@@ -37,7 +38,6 @@ obj-$(CONFIG_TOUCHSCREEN_HTCPEN)	+= htcpen.o
 obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE)	+= usbtouchscreen.o
 obj-$(CONFIG_TOUCHSCREEN_PCAP)		+= pcap_ts.o
 obj-$(CONFIG_TOUCHSCREEN_PENMOUNT)	+= penmount.o
-obj-$(CONFIG_TOUCHSCREEN_QT602240)	+= qt602240_ts.o
 obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
@@ -45,9 +45,11 @@ 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-$(CONFIG_TOUCHSCREEN_TSC2005)	+= tsc2005.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
 obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001)	+= wacom_w8001.o
+obj-$(CONFIG_TOUCHSCREEN_WM831X)	+= wm831x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX)	+= wm97xx-ts.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)	+= wm9705.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712)	+= wm9712.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index a1952fcc083..714d4e0f9f9 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -41,6 +41,7 @@
 #include <linux/delay.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ad7877.h>
@@ -826,39 +827,37 @@ static int __devexit ad7877_remove(struct spi_device *spi)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ad7877_suspend(struct device *dev)
 {
-	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+	struct ad7877 *ts = dev_get_drvdata(dev);
 
 	ad7877_disable(ts);
 
 	return 0;
 }
 
-static int ad7877_resume(struct spi_device *spi)
+static int ad7877_resume(struct device *dev)
 {
-	struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+	struct ad7877 *ts = dev_get_drvdata(dev);
 
 	ad7877_enable(ts);
 
 	return 0;
 }
-#else
-#define ad7877_suspend NULL
-#define ad7877_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume);
+
 static struct spi_driver ad7877_driver = {
 	.driver = {
 		.name	= "ad7877",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ad7877_pm,
 	},
 	.probe		= ad7877_probe,
 	.remove		= __devexit_p(ad7877_remove),
-	.suspend	= ad7877_suspend,
-	.resume		= ad7877_resume,
 };
 
 static int __init ad7877_init(void)
diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
index 59c6e68c432..ddf732f3caf 100644
--- a/drivers/input/touchscreen/ad7879-spi.c
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/input.h>	/* BUS_SPI */
+#include <linux/pm.h>
 #include <linux/spi/spi.h>
 
 #include "ad7879.h"
@@ -20,9 +21,10 @@
 #define AD7879_WRITECMD(reg) (AD7879_CMD(reg))
 #define AD7879_READCMD(reg)  (AD7879_CMD(reg) | AD7879_CMD_READ)
 
-#ifdef CONFIG_PM
-static int ad7879_spi_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_spi_suspend(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct ad7879 *ts = spi_get_drvdata(spi);
 
 	ad7879_suspend(ts);
@@ -30,19 +32,19 @@ static int ad7879_spi_suspend(struct spi_device *spi, pm_message_t message)
 	return 0;
 }
 
-static int ad7879_spi_resume(struct spi_device *spi)
+static int ad7879_spi_resume(struct device *dev)
 {
+	struct spi_device *spi = to_spi_device(dev);
 	struct ad7879 *ts = spi_get_drvdata(spi);
 
 	ad7879_resume(ts);
 
 	return 0;
 }
-#else
-# define ad7879_spi_suspend NULL
-# define ad7879_spi_resume  NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume);
+
 /*
  * ad7879_read/write are only used for initial setup and for sysfs controls.
  * The main traffic is done in ad7879_collect().
@@ -173,11 +175,10 @@ static struct spi_driver ad7879_spi_driver = {
 		.name	= "ad7879",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ad7879_spi_pm,
 	},
 	.probe		= ad7879_spi_probe,
 	.remove		= __devexit_p(ad7879_spi_remove),
-	.suspend	= ad7879_spi_suspend,
-	.resume		= ad7879_spi_resume,
 };
 
 static int __init ad7879_spi_init(void)
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 4bf2316e328..c24946f5125 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -26,6 +26,7 @@
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/pm.h>
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
@@ -892,9 +893,10 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
 	return IRQ_HANDLED;
 }
 
-static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
+#ifdef CONFIG_PM_SLEEP
+static int ads7846_suspend(struct device *dev)
 {
-	struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+	struct ads7846 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->lock);
 
@@ -914,9 +916,9 @@ static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
 	return 0;
 }
 
-static int ads7846_resume(struct spi_device *spi)
+static int ads7846_resume(struct device *dev)
 {
-	struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+	struct ads7846 *ts = dev_get_drvdata(dev);
 
 	mutex_lock(&ts->lock);
 
@@ -935,6 +937,9 @@ static int ads7846_resume(struct spi_device *spi)
 
 	return 0;
 }
+#endif
+
+static SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume);
 
 static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts)
 {
@@ -1408,11 +1413,10 @@ static struct spi_driver ads7846_driver = {
 		.name	= "ads7846",
 		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
+		.pm	= &ads7846_pm,
 	},
 	.probe		= ads7846_probe,
 	.remove		= __devexit_p(ads7846_remove),
-	.suspend	= ads7846_suspend,
-	.resume		= ads7846_resume,
 };
 
 static int __init ads7846_init(void)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
new file mode 100644
index 00000000000..4012436633b
--- /dev/null
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -0,0 +1,1211 @@
+/*
+ * Atmel maXTouch Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.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/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+/* Version */
+#define MXT_VER_20		20
+#define MXT_VER_21		21
+#define MXT_VER_22		22
+
+/* Slave addresses */
+#define MXT_APP_LOW		0x4a
+#define MXT_APP_HIGH		0x4b
+#define MXT_BOOT_LOW		0x24
+#define MXT_BOOT_HIGH		0x25
+
+/* Firmware */
+#define MXT_FW_NAME		"maxtouch.fw"
+
+/* Registers */
+#define MXT_FAMILY_ID		0x00
+#define MXT_VARIANT_ID		0x01
+#define MXT_VERSION		0x02
+#define MXT_BUILD		0x03
+#define MXT_MATRIX_X_SIZE	0x04
+#define MXT_MATRIX_Y_SIZE	0x05
+#define MXT_OBJECT_NUM		0x06
+#define MXT_OBJECT_START	0x07
+
+#define MXT_OBJECT_SIZE		6
+
+/* Object types */
+#define MXT_DEBUG_DIAGNOSTIC	37
+#define MXT_GEN_MESSAGE		5
+#define MXT_GEN_COMMAND		6
+#define MXT_GEN_POWER		7
+#define MXT_GEN_ACQUIRE		8
+#define MXT_TOUCH_MULTI		9
+#define MXT_TOUCH_KEYARRAY	15
+#define MXT_TOUCH_PROXIMITY	23
+#define MXT_PROCI_GRIPFACE	20
+#define MXT_PROCG_NOISE		22
+#define MXT_PROCI_ONETOUCH	24
+#define MXT_PROCI_TWOTOUCH	27
+#define MXT_PROCI_GRIP		40
+#define MXT_PROCI_PALM		41
+#define MXT_SPT_COMMSCONFIG	18
+#define MXT_SPT_GPIOPWM		19
+#define MXT_SPT_SELFTEST	25
+#define MXT_SPT_CTECONFIG	28
+#define MXT_SPT_USERDATA	38
+#define MXT_SPT_DIGITIZER	43
+#define MXT_SPT_MESSAGECOUNT	44
+
+/* MXT_GEN_COMMAND field */
+#define MXT_COMMAND_RESET	0
+#define MXT_COMMAND_BACKUPNV	1
+#define MXT_COMMAND_CALIBRATE	2
+#define MXT_COMMAND_REPORTALL	3
+#define MXT_COMMAND_DIAGNOSTIC	5
+
+/* MXT_GEN_POWER field */
+#define MXT_POWER_IDLEACQINT	0
+#define MXT_POWER_ACTVACQINT	1
+#define MXT_POWER_ACTV2IDLETO	2
+
+/* MXT_GEN_ACQUIRE field */
+#define MXT_ACQUIRE_CHRGTIME	0
+#define MXT_ACQUIRE_TCHDRIFT	2
+#define MXT_ACQUIRE_DRIFTST	3
+#define MXT_ACQUIRE_TCHAUTOCAL	4
+#define MXT_ACQUIRE_SYNC	5
+#define MXT_ACQUIRE_ATCHCALST	6
+#define MXT_ACQUIRE_ATCHCALSTHR	7
+
+/* MXT_TOUCH_MULTI field */
+#define MXT_TOUCH_CTRL		0
+#define MXT_TOUCH_XORIGIN	1
+#define MXT_TOUCH_YORIGIN	2
+#define MXT_TOUCH_XSIZE		3
+#define MXT_TOUCH_YSIZE		4
+#define MXT_TOUCH_BLEN		6
+#define MXT_TOUCH_TCHTHR	7
+#define MXT_TOUCH_TCHDI		8
+#define MXT_TOUCH_ORIENT	9
+#define MXT_TOUCH_MOVHYSTI	11
+#define MXT_TOUCH_MOVHYSTN	12
+#define MXT_TOUCH_NUMTOUCH	14
+#define MXT_TOUCH_MRGHYST	15
+#define MXT_TOUCH_MRGTHR	16
+#define MXT_TOUCH_AMPHYST	17
+#define MXT_TOUCH_XRANGE_LSB	18
+#define MXT_TOUCH_XRANGE_MSB	19
+#define MXT_TOUCH_YRANGE_LSB	20
+#define MXT_TOUCH_YRANGE_MSB	21
+#define MXT_TOUCH_XLOCLIP	22
+#define MXT_TOUCH_XHICLIP	23
+#define MXT_TOUCH_YLOCLIP	24
+#define MXT_TOUCH_YHICLIP	25
+#define MXT_TOUCH_XEDGECTRL	26
+#define MXT_TOUCH_XEDGEDIST	27
+#define MXT_TOUCH_YEDGECTRL	28
+#define MXT_TOUCH_YEDGEDIST	29
+#define MXT_TOUCH_JUMPLIMIT	30
+
+/* MXT_PROCI_GRIPFACE field */
+#define MXT_GRIPFACE_CTRL	0
+#define MXT_GRIPFACE_XLOGRIP	1
+#define MXT_GRIPFACE_XHIGRIP	2
+#define MXT_GRIPFACE_YLOGRIP	3
+#define MXT_GRIPFACE_YHIGRIP	4
+#define MXT_GRIPFACE_MAXTCHS	5
+#define MXT_GRIPFACE_SZTHR1	7
+#define MXT_GRIPFACE_SZTHR2	8
+#define MXT_GRIPFACE_SHPTHR1	9
+#define MXT_GRIPFACE_SHPTHR2	10
+#define MXT_GRIPFACE_SUPEXTTO	11
+
+/* MXT_PROCI_NOISE field */
+#define MXT_NOISE_CTRL		0
+#define MXT_NOISE_OUTFLEN	1
+#define MXT_NOISE_GCAFUL_LSB	3
+#define MXT_NOISE_GCAFUL_MSB	4
+#define MXT_NOISE_GCAFLL_LSB	5
+#define MXT_NOISE_GCAFLL_MSB	6
+#define MXT_NOISE_ACTVGCAFVALID	7
+#define MXT_NOISE_NOISETHR	8
+#define MXT_NOISE_FREQHOPSCALE	10
+#define MXT_NOISE_FREQ0		11
+#define MXT_NOISE_FREQ1		12
+#define MXT_NOISE_FREQ2		13
+#define MXT_NOISE_FREQ3		14
+#define MXT_NOISE_FREQ4		15
+#define MXT_NOISE_IDLEGCAFVALID	16
+
+/* MXT_SPT_COMMSCONFIG */
+#define MXT_COMMS_CTRL		0
+#define MXT_COMMS_CMD		1
+
+/* MXT_SPT_CTECONFIG field */
+#define MXT_CTE_CTRL		0
+#define MXT_CTE_CMD		1
+#define MXT_CTE_MODE		2
+#define MXT_CTE_IDLEGCAFDEPTH	3
+#define MXT_CTE_ACTVGCAFDEPTH	4
+#define MXT_CTE_VOLTAGE		5
+
+#define MXT_VOLTAGE_DEFAULT	2700000
+#define MXT_VOLTAGE_STEP	10000
+
+/* Define for MXT_GEN_COMMAND */
+#define MXT_BOOT_VALUE		0xa5
+#define MXT_BACKUP_VALUE	0x55
+#define MXT_BACKUP_TIME		25	/* msec */
+#define MXT_RESET_TIME		65	/* msec */
+
+#define MXT_FWRESET_TIME	175	/* msec */
+
+/* Command to unlock bootloader */
+#define MXT_UNLOCK_CMD_MSB	0xaa
+#define MXT_UNLOCK_CMD_LSB	0xdc
+
+/* Bootloader mode status */
+#define MXT_WAITING_BOOTLOAD_CMD	0xc0	/* valid 7 6 bit only */
+#define MXT_WAITING_FRAME_DATA	0x80	/* valid 7 6 bit only */
+#define MXT_FRAME_CRC_CHECK	0x02
+#define MXT_FRAME_CRC_FAIL	0x03
+#define MXT_FRAME_CRC_PASS	0x04
+#define MXT_APP_CRC_FAIL	0x40	/* valid 7 8 bit only */
+#define MXT_BOOT_STATUS_MASK	0x3f
+
+/* Touch status */
+#define MXT_SUPPRESS		(1 << 1)
+#define MXT_AMP			(1 << 2)
+#define MXT_VECTOR		(1 << 3)
+#define MXT_MOVE		(1 << 4)
+#define MXT_RELEASE		(1 << 5)
+#define MXT_PRESS		(1 << 6)
+#define MXT_DETECT		(1 << 7)
+
+/* Touchscreen absolute values */
+#define MXT_MAX_XC		0x3ff
+#define MXT_MAX_YC		0x3ff
+#define MXT_MAX_AREA		0xff
+
+#define MXT_MAX_FINGER		10
+
+struct mxt_info {
+	u8 family_id;
+	u8 variant_id;
+	u8 version;
+	u8 build;
+	u8 matrix_xsize;
+	u8 matrix_ysize;
+	u8 object_num;
+};
+
+struct mxt_object {
+	u8 type;
+	u16 start_address;
+	u8 size;
+	u8 instances;
+	u8 num_report_ids;
+
+	/* to map object and message */
+	u8 max_reportid;
+};
+
+struct mxt_message {
+	u8 reportid;
+	u8 message[7];
+	u8 checksum;
+};
+
+struct mxt_finger {
+	int status;
+	int x;
+	int y;
+	int area;
+};
+
+/* Each client has this additional data */
+struct mxt_data {
+	struct i2c_client *client;
+	struct input_dev *input_dev;
+	const struct mxt_platform_data *pdata;
+	struct mxt_object *object_table;
+	struct mxt_info info;
+	struct mxt_finger finger[MXT_MAX_FINGER];
+	unsigned int irq;
+};
+
+static bool mxt_object_readable(unsigned int type)
+{
+	switch (type) {
+	case MXT_GEN_MESSAGE:
+	case MXT_GEN_COMMAND:
+	case MXT_GEN_POWER:
+	case MXT_GEN_ACQUIRE:
+	case MXT_TOUCH_MULTI:
+	case MXT_TOUCH_KEYARRAY:
+	case MXT_TOUCH_PROXIMITY:
+	case MXT_PROCI_GRIPFACE:
+	case MXT_PROCG_NOISE:
+	case MXT_PROCI_ONETOUCH:
+	case MXT_PROCI_TWOTOUCH:
+	case MXT_PROCI_GRIP:
+	case MXT_PROCI_PALM:
+	case MXT_SPT_COMMSCONFIG:
+	case MXT_SPT_GPIOPWM:
+	case MXT_SPT_SELFTEST:
+	case MXT_SPT_CTECONFIG:
+	case MXT_SPT_USERDATA:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mxt_object_writable(unsigned int type)
+{
+	switch (type) {
+	case MXT_GEN_COMMAND:
+	case MXT_GEN_POWER:
+	case MXT_GEN_ACQUIRE:
+	case MXT_TOUCH_MULTI:
+	case MXT_TOUCH_KEYARRAY:
+	case MXT_TOUCH_PROXIMITY:
+	case MXT_PROCI_GRIPFACE:
+	case MXT_PROCG_NOISE:
+	case MXT_PROCI_ONETOUCH:
+	case MXT_PROCI_TWOTOUCH:
+	case MXT_PROCI_GRIP:
+	case MXT_PROCI_PALM:
+	case MXT_SPT_GPIOPWM:
+	case MXT_SPT_SELFTEST:
+	case MXT_SPT_CTECONFIG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static void mxt_dump_message(struct device *dev,
+				  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);
+}
+
+static int mxt_check_bootloader(struct i2c_client *client,
+				     unsigned int state)
+{
+	u8 val;
+
+recheck:
+	if (i2c_master_recv(client, &val, 1) != 1) {
+		dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
+		return -EIO;
+	}
+
+	switch (state) {
+	case MXT_WAITING_BOOTLOAD_CMD:
+	case MXT_WAITING_FRAME_DATA:
+		val &= ~MXT_BOOT_STATUS_MASK;
+		break;
+	case MXT_FRAME_CRC_PASS:
+		if (val == MXT_FRAME_CRC_CHECK)
+			goto recheck;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (val != state) {
+		dev_err(&client->dev, "Unvalid bootloader mode state\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int mxt_unlock_bootloader(struct i2c_client *client)
+{
+	u8 buf[2];
+
+	buf[0] = MXT_UNLOCK_CMD_LSB;
+	buf[1] = MXT_UNLOCK_CMD_MSB;
+
+	if (i2c_master_send(client, buf, 2) != 2) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_fw_write(struct i2c_client *client,
+			     const u8 *data, unsigned int frame_size)
+{
+	if (i2c_master_send(client, data, frame_size) != frame_size) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int __mxt_read_reg(struct i2c_client *client,
+			       u16 reg, u16 len, void *val)
+{
+	struct i2c_msg xfer[2];
+	u8 buf[2];
+
+	buf[0] = reg & 0xff;
+	buf[1] = (reg >> 8) & 0xff;
+
+	/* Write register */
+	xfer[0].addr = client->addr;
+	xfer[0].flags = 0;
+	xfer[0].len = 2;
+	xfer[0].buf = buf;
+
+	/* Read data */
+	xfer[1].addr = client->addr;
+	xfer[1].flags = I2C_M_RD;
+	xfer[1].len = len;
+	xfer[1].buf = val;
+
+	if (i2c_transfer(client->adapter, xfer, 2) != 2) {
+		dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val)
+{
+	return __mxt_read_reg(client, reg, 1, val);
+}
+
+static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val)
+{
+	u8 buf[3];
+
+	buf[0] = reg & 0xff;
+	buf[1] = (reg >> 8) & 0xff;
+	buf[2] = val;
+
+	if (i2c_master_send(client, buf, 3) != 3) {
+		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mxt_read_object_table(struct i2c_client *client,
+				      u16 reg, u8 *object_buf)
+{
+	return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE,
+				   object_buf);
+}
+
+static struct mxt_object *
+mxt_get_object(struct mxt_data *data, u8 type)
+{
+	struct mxt_object *object;
+	int i;
+
+	for (i = 0; i < data->info.object_num; i++) {
+		object = data->object_table + i;
+		if (object->type == type)
+			return object;
+	}
+
+	dev_err(&data->client->dev, "Invalid object type\n");
+	return NULL;
+}
+
+static int mxt_read_message(struct mxt_data *data,
+				 struct mxt_message *message)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, MXT_GEN_MESSAGE);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return __mxt_read_reg(data->client, reg,
+			sizeof(struct mxt_message), message);
+}
+
+static int mxt_read_object(struct mxt_data *data,
+				u8 type, u8 offset, u8 *val)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, type);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return __mxt_read_reg(data->client, reg + offset, 1, val);
+}
+
+static int mxt_write_object(struct mxt_data *data,
+				 u8 type, u8 offset, u8 val)
+{
+	struct mxt_object *object;
+	u16 reg;
+
+	object = mxt_get_object(data, type);
+	if (!object)
+		return -EINVAL;
+
+	reg = object->start_address;
+	return mxt_write_reg(data->client, reg + offset, val);
+}
+
+static void mxt_input_report(struct mxt_data *data, int single_id)
+{
+	struct mxt_finger *finger = data->finger;
+	struct input_dev *input_dev = data->input_dev;
+	int status = finger[single_id].status;
+	int finger_num = 0;
+	int id;
+
+	for (id = 0; id < MXT_MAX_FINGER; id++) {
+		if (!finger[id].status)
+			continue;
+
+		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
+				finger[id].status != MXT_RELEASE ?
+				finger[id].area : 0);
+		input_report_abs(input_dev, ABS_MT_POSITION_X,
+				finger[id].x);
+		input_report_abs(input_dev, ABS_MT_POSITION_Y,
+				finger[id].y);
+		input_mt_sync(input_dev);
+
+		if (finger[id].status == MXT_RELEASE)
+			finger[id].status = 0;
+		else
+			finger_num++;
+	}
+
+	input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
+
+	if (status != MXT_RELEASE) {
+		input_report_abs(input_dev, ABS_X, finger[single_id].x);
+		input_report_abs(input_dev, ABS_Y, finger[single_id].y);
+	}
+
+	input_sync(input_dev);
+}
+
+static void mxt_input_touchevent(struct mxt_data *data,
+				      struct mxt_message *message, int id)
+{
+	struct mxt_finger *finger = data->finger;
+	struct device *dev = &data->client->dev;
+	u8 status = message->message[0];
+	int x;
+	int y;
+	int area;
+
+	/* Check the touch is present on the screen */
+	if (!(status & MXT_DETECT)) {
+		if (status & MXT_RELEASE) {
+			dev_dbg(dev, "[%d] released\n", id);
+
+			finger[id].status = MXT_RELEASE;
+			mxt_input_report(data, id);
+		}
+		return;
+	}
+
+	/* Check only AMP detection */
+	if (!(status & (MXT_PRESS | MXT_MOVE)))
+		return;
+
+	x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
+	y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
+	area = message->message[4];
+
+	dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
+		status & MXT_MOVE ? "moved" : "pressed",
+		x, y, area);
+
+	finger[id].status = status & MXT_MOVE ?
+				MXT_MOVE : MXT_PRESS;
+	finger[id].x = x;
+	finger[id].y = y;
+	finger[id].area = area;
+
+	mxt_input_report(data, id);
+}
+
+static irqreturn_t mxt_interrupt(int irq, void *dev_id)
+{
+	struct mxt_data *data = dev_id;
+	struct mxt_message message;
+	struct mxt_object *object;
+	struct device *dev = &data->client->dev;
+	int id;
+	u8 reportid;
+	u8 max_reportid;
+	u8 min_reportid;
+
+	do {
+		if (mxt_read_message(data, &message)) {
+			dev_err(dev, "Failed to read message\n");
+			goto end;
+		}
+
+		reportid = message.reportid;
+
+		/* whether reportid is thing of MXT_TOUCH_MULTI */
+		object = mxt_get_object(data, MXT_TOUCH_MULTI);
+		if (!object)
+			goto end;
+
+		max_reportid = object->max_reportid;
+		min_reportid = max_reportid - object->num_report_ids + 1;
+		id = reportid - min_reportid;
+
+		if (reportid >= min_reportid && reportid <= max_reportid)
+			mxt_input_touchevent(data, &message, id);
+		else
+			mxt_dump_message(dev, &message);
+	} while (reportid != 0xff);
+
+end:
+	return IRQ_HANDLED;
+}
+
+static int mxt_check_reg_init(struct mxt_data *data)
+{
+	const struct mxt_platform_data *pdata = data->pdata;
+	struct mxt_object *object;
+	struct device *dev = &data->client->dev;
+	int index = 0;
+	int i, j, config_offset;
+
+	if (!pdata->config) {
+		dev_dbg(dev, "No cfg data defined, skipping reg init\n");
+		return 0;
+	}
+
+	for (i = 0; i < data->info.object_num; i++) {
+		object = data->object_table + i;
+
+		if (!mxt_object_writable(object->type))
+			continue;
+
+		for (j = 0; j < object->size + 1; j++) {
+			config_offset = index + j;
+			if (config_offset > pdata->config_length) {
+				dev_err(dev, "Not enough config data!\n");
+				return -EINVAL;
+			}
+			mxt_write_object(data, object->type, j,
+					 pdata->config[config_offset]);
+		}
+		index += object->size + 1;
+	}
+
+	return 0;
+}
+
+static int mxt_make_highchg(struct mxt_data *data)
+{
+	struct device *dev = &data->client->dev;
+	struct mxt_message message;
+	int count = 10;
+	int error;
+
+	/* Read dummy message to make high CHG pin */
+	do {
+		error = mxt_read_message(data, &message);
+		if (error)
+			return error;
+	} while (message.reportid != 0xff && --count);
+
+	if (!count) {
+		dev_err(dev, "CHG pin isn't cleared\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static void mxt_handle_pdata(struct mxt_data *data)
+{
+	const struct mxt_platform_data *pdata = data->pdata;
+	u8 voltage;
+
+	/* Set touchscreen lines */
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_XSIZE,
+			pdata->x_line);
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_YSIZE,
+			pdata->y_line);
+
+	/* Set touchscreen orient */
+	mxt_write_object(data, MXT_TOUCH_MULTI, MXT_TOUCH_ORIENT,
+			pdata->orient);
+
+	/* Set touchscreen burst length */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_BLEN, pdata->blen);
+
+	/* Set touchscreen threshold */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_TCHTHR, pdata->threshold);
+
+	/* Set touchscreen resolution */
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
+	mxt_write_object(data, MXT_TOUCH_MULTI,
+			MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
+
+	/* Set touchscreen voltage */
+	if (pdata->voltage) {
+		if (pdata->voltage < MXT_VOLTAGE_DEFAULT) {
+			voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) /
+				MXT_VOLTAGE_STEP;
+			voltage = 0xff - voltage + 1;
+		} else
+			voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) /
+				MXT_VOLTAGE_STEP;
+
+		mxt_write_object(data, MXT_SPT_CTECONFIG,
+				MXT_CTE_VOLTAGE, voltage);
+	}
+}
+
+static int mxt_get_info(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	struct mxt_info *info = &data->info;
+	int error;
+	u8 val;
+
+	error = mxt_read_reg(client, MXT_FAMILY_ID, &val);
+	if (error)
+		return error;
+	info->family_id = val;
+
+	error = mxt_read_reg(client, MXT_VARIANT_ID, &val);
+	if (error)
+		return error;
+	info->variant_id = val;
+
+	error = mxt_read_reg(client, MXT_VERSION, &val);
+	if (error)
+		return error;
+	info->version = val;
+
+	error = mxt_read_reg(client, MXT_BUILD, &val);
+	if (error)
+		return error;
+	info->build = val;
+
+	error = mxt_read_reg(client, MXT_OBJECT_NUM, &val);
+	if (error)
+		return error;
+	info->object_num = val;
+
+	return 0;
+}
+
+static int mxt_get_object_table(struct mxt_data *data)
+{
+	int error;
+	int i;
+	u16 reg;
+	u8 reportid = 0;
+	u8 buf[MXT_OBJECT_SIZE];
+
+	for (i = 0; i < data->info.object_num; i++) {
+		struct mxt_object *object = data->object_table + i;
+
+		reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i;
+		error = mxt_read_object_table(data->client, reg, buf);
+		if (error)
+			return error;
+
+		object->type = buf[0];
+		object->start_address = (buf[2] << 8) | buf[1];
+		object->size = buf[3];
+		object->instances = buf[4];
+		object->num_report_ids = buf[5];
+
+		if (object->num_report_ids) {
+			reportid += object->num_report_ids *
+					(object->instances + 1);
+			object->max_reportid = reportid;
+		}
+	}
+
+	return 0;
+}
+
+static int mxt_initialize(struct mxt_data *data)
+{
+	struct i2c_client *client = data->client;
+	struct mxt_info *info = &data->info;
+	int error;
+	u8 val;
+
+	error = mxt_get_info(data);
+	if (error)
+		return error;
+
+	data->object_table = kcalloc(info->object_num,
+				     sizeof(struct mxt_object),
+				     GFP_KERNEL);
+	if (!data->object_table) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	/* Get object table information */
+	error = mxt_get_object_table(data);
+	if (error)
+		return error;
+
+	/* Check register init values */
+	error = mxt_check_reg_init(data);
+	if (error)
+		return error;
+
+	error = mxt_make_highchg(data);
+	if (error)
+		return error;
+
+	mxt_handle_pdata(data);
+
+	/* Backup to memory */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_BACKUPNV,
+			MXT_BACKUP_VALUE);
+	msleep(MXT_BACKUP_TIME);
+
+	/* Soft reset */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, 1);
+	msleep(MXT_RESET_TIME);
+
+	/* Update matrix size at info struct */
+	error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val);
+	if (error)
+		return error;
+	info->matrix_xsize = val;
+
+	error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val);
+	if (error)
+		return error;
+	info->matrix_ysize = val;
+
+	dev_info(&client->dev,
+			"Family ID: %d Variant ID: %d Version: %d Build: %d\n",
+			info->family_id, info->variant_id, info->version,
+			info->build);
+
+	dev_info(&client->dev,
+			"Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
+			info->matrix_xsize, info->matrix_ysize,
+			info->object_num);
+
+	return 0;
+}
+
+static ssize_t mxt_object_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	struct mxt_object *object;
+	int count = 0;
+	int i, j;
+	int error;
+	u8 val;
+
+	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",
+				i + 1, object->type);
+
+		if (!mxt_object_readable(object->type)) {
+			count += sprintf(buf + count, "\n");
+			continue;
+		}
+
+		for (j = 0; j < object->size + 1; j++) {
+			error = mxt_read_object(data,
+						object->type, j, &val);
+			if (error)
+				return error;
+
+			count += sprintf(buf + count,
+					"  Byte %d: 0x%x (%d)\n", j, val, val);
+		}
+
+		count += sprintf(buf + count, "\n");
+	}
+
+	return count;
+}
+
+static int mxt_load_fw(struct device *dev, const char *fn)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	const struct firmware *fw = NULL;
+	unsigned int frame_size;
+	unsigned int pos = 0;
+	int ret;
+
+	ret = request_firmware(&fw, fn, dev);
+	if (ret) {
+		dev_err(dev, "Unable to open firmware %s\n", fn);
+		return ret;
+	}
+
+	/* Change to the bootloader mode */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, MXT_BOOT_VALUE);
+	msleep(MXT_RESET_TIME);
+
+	/* Change to slave address of bootloader */
+	if (client->addr == MXT_APP_LOW)
+		client->addr = MXT_BOOT_LOW;
+	else
+		client->addr = MXT_BOOT_HIGH;
+
+	ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD);
+	if (ret)
+		goto out;
+
+	/* Unlock bootloader */
+	mxt_unlock_bootloader(client);
+
+	while (pos < fw->size) {
+		ret = mxt_check_bootloader(client,
+						MXT_WAITING_FRAME_DATA);
+		if (ret)
+			goto out;
+
+		frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
+
+		/* We should add 2 at frame size as the the firmware data is not
+		 * included the CRC bytes.
+		 */
+		frame_size += 2;
+
+		/* Write one frame to device */
+		mxt_fw_write(client, fw->data + pos, frame_size);
+
+		ret = mxt_check_bootloader(client,
+						MXT_FRAME_CRC_PASS);
+		if (ret)
+			goto out;
+
+		pos += frame_size;
+
+		dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
+	}
+
+out:
+	release_firmware(fw);
+
+	/* Change to slave address of application */
+	if (client->addr == MXT_BOOT_LOW)
+		client->addr = MXT_APP_LOW;
+	else
+		client->addr = MXT_APP_HIGH;
+
+	return ret;
+}
+
+static ssize_t mxt_update_fw_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct mxt_data *data = dev_get_drvdata(dev);
+	int error;
+
+	disable_irq(data->irq);
+
+	error = mxt_load_fw(dev, MXT_FW_NAME);
+	if (error) {
+		dev_err(dev, "The firmware update failed(%d)\n", error);
+		count = error;
+	} else {
+		dev_dbg(dev, "The firmware update succeeded\n");
+
+		/* Wait for reset */
+		msleep(MXT_FWRESET_TIME);
+
+		kfree(data->object_table);
+		data->object_table = NULL;
+
+		mxt_initialize(data);
+	}
+
+	enable_irq(data->irq);
+
+	return count;
+}
+
+static DEVICE_ATTR(object, 0444, mxt_object_show, NULL);
+static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store);
+
+static struct attribute *mxt_attrs[] = {
+	&dev_attr_object.attr,
+	&dev_attr_update_fw.attr,
+	NULL
+};
+
+static const struct attribute_group mxt_attr_group = {
+	.attrs = mxt_attrs,
+};
+
+static void mxt_start(struct mxt_data *data)
+{
+	/* Touch enable */
+	mxt_write_object(data,
+			MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0x83);
+}
+
+static void mxt_stop(struct mxt_data *data)
+{
+	/* Touch disable */
+	mxt_write_object(data,
+			MXT_TOUCH_MULTI, MXT_TOUCH_CTRL, 0);
+}
+
+static int mxt_input_open(struct input_dev *dev)
+{
+	struct mxt_data *data = input_get_drvdata(dev);
+
+	mxt_start(data);
+
+	return 0;
+}
+
+static void mxt_input_close(struct input_dev *dev)
+{
+	struct mxt_data *data = input_get_drvdata(dev);
+
+	mxt_stop(data);
+}
+
+static int __devinit mxt_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	const struct mxt_platform_data *pdata = client->dev.platform_data;
+	struct mxt_data *data;
+	struct input_dev *input_dev;
+	int error;
+
+	if (!pdata)
+		return -EINVAL;
+
+	data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!data || !input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	input_dev->name = "Atmel maXTouch Touchscreen";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+	input_dev->open = mxt_input_open;
+	input_dev->close = mxt_input_close;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	/* For single touch */
+	input_set_abs_params(input_dev, ABS_X,
+			     0, MXT_MAX_XC, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			     0, MXT_MAX_YC, 0, 0);
+
+	/* For multi touch */
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+			     0, MXT_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+			     0, MXT_MAX_XC, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+			     0, MXT_MAX_YC, 0, 0);
+
+	input_set_drvdata(input_dev, data);
+
+	data->client = client;
+	data->input_dev = input_dev;
+	data->pdata = pdata;
+	data->irq = client->irq;
+
+	i2c_set_clientdata(client, data);
+
+	error = mxt_initialize(data);
+	if (error)
+		goto err_free_object;
+
+	error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
+			pdata->irqflags, client->dev.driver->name, data);
+	if (error) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		goto err_free_object;
+	}
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_free_irq;
+
+	error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+	if (error)
+		goto err_unregister_device;
+
+	return 0;
+
+err_unregister_device:
+	input_unregister_device(input_dev);
+	input_dev = NULL;
+err_free_irq:
+	free_irq(client->irq, data);
+err_free_object:
+	kfree(data->object_table);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(data);
+	return error;
+}
+
+static int __devexit mxt_remove(struct i2c_client *client)
+{
+	struct mxt_data *data = i2c_get_clientdata(client);
+
+	sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+	free_irq(data->irq, data);
+	input_unregister_device(data->input_dev);
+	kfree(data->object_table);
+	kfree(data);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int mxt_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mxt_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		mxt_stop(data);
+
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static int mxt_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mxt_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+
+	/* Soft reset */
+	mxt_write_object(data, MXT_GEN_COMMAND,
+			MXT_COMMAND_RESET, 1);
+
+	msleep(MXT_RESET_TIME);
+
+	mutex_lock(&input_dev->mutex);
+
+	if (input_dev->users)
+		mxt_start(data);
+
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static const struct dev_pm_ops mxt_pm_ops = {
+	.suspend	= mxt_suspend,
+	.resume		= mxt_resume,
+};
+#endif
+
+static const struct i2c_device_id mxt_id[] = {
+	{ "qt602240_ts", 0 },
+	{ "atmel_mxt_ts", 0 },
+	{ "mXT224", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mxt_id);
+
+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),
+	.id_table	= mxt_id,
+};
+
+static int __init mxt_init(void)
+{
+	return i2c_add_driver(&mxt_driver);
+}
+
+static void __exit mxt_exit(void)
+{
+	i2c_del_driver(&mxt_driver);
+}
+
+module_init(mxt_init);
+module_exit(mxt_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/qt602240_ts.c b/drivers/input/touchscreen/qt602240_ts.c
deleted file mode 100644
index 4dcb0e872f6..00000000000
--- a/drivers/input/touchscreen/qt602240_ts.c
+++ /dev/null
@@ -1,1406 +0,0 @@
-/*
- * AT42QT602240/ATMXT224 Touchscreen driver
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.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/init.h>
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/i2c.h>
-#include <linux/i2c/qt602240_ts.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-/* Version */
-#define QT602240_VER_20			20
-#define QT602240_VER_21			21
-#define QT602240_VER_22			22
-
-/* Slave addresses */
-#define QT602240_APP_LOW		0x4a
-#define QT602240_APP_HIGH		0x4b
-#define QT602240_BOOT_LOW		0x24
-#define QT602240_BOOT_HIGH		0x25
-
-/* Firmware */
-#define QT602240_FW_NAME		"qt602240.fw"
-
-/* Registers */
-#define QT602240_FAMILY_ID		0x00
-#define QT602240_VARIANT_ID		0x01
-#define QT602240_VERSION		0x02
-#define QT602240_BUILD			0x03
-#define QT602240_MATRIX_X_SIZE		0x04
-#define QT602240_MATRIX_Y_SIZE		0x05
-#define QT602240_OBJECT_NUM		0x06
-#define QT602240_OBJECT_START		0x07
-
-#define QT602240_OBJECT_SIZE		6
-
-/* Object types */
-#define QT602240_DEBUG_DIAGNOSTIC	37
-#define QT602240_GEN_MESSAGE		5
-#define QT602240_GEN_COMMAND		6
-#define QT602240_GEN_POWER		7
-#define QT602240_GEN_ACQUIRE		8
-#define QT602240_TOUCH_MULTI		9
-#define QT602240_TOUCH_KEYARRAY		15
-#define QT602240_TOUCH_PROXIMITY	23
-#define QT602240_PROCI_GRIPFACE		20
-#define QT602240_PROCG_NOISE		22
-#define QT602240_PROCI_ONETOUCH		24
-#define QT602240_PROCI_TWOTOUCH		27
-#define QT602240_SPT_COMMSCONFIG	18	/* firmware ver 21 over */
-#define QT602240_SPT_GPIOPWM		19
-#define QT602240_SPT_SELFTEST		25
-#define QT602240_SPT_CTECONFIG		28
-#define QT602240_SPT_USERDATA		38	/* firmware ver 21 over */
-
-/* QT602240_GEN_COMMAND field */
-#define QT602240_COMMAND_RESET		0
-#define QT602240_COMMAND_BACKUPNV	1
-#define QT602240_COMMAND_CALIBRATE	2
-#define QT602240_COMMAND_REPORTALL	3
-#define QT602240_COMMAND_DIAGNOSTIC	5
-
-/* QT602240_GEN_POWER field */
-#define QT602240_POWER_IDLEACQINT	0
-#define QT602240_POWER_ACTVACQINT	1
-#define QT602240_POWER_ACTV2IDLETO	2
-
-/* QT602240_GEN_ACQUIRE field */
-#define QT602240_ACQUIRE_CHRGTIME	0
-#define QT602240_ACQUIRE_TCHDRIFT	2
-#define QT602240_ACQUIRE_DRIFTST	3
-#define QT602240_ACQUIRE_TCHAUTOCAL	4
-#define QT602240_ACQUIRE_SYNC		5
-#define QT602240_ACQUIRE_ATCHCALST	6
-#define QT602240_ACQUIRE_ATCHCALSTHR	7
-
-/* QT602240_TOUCH_MULTI field */
-#define QT602240_TOUCH_CTRL		0
-#define QT602240_TOUCH_XORIGIN		1
-#define QT602240_TOUCH_YORIGIN		2
-#define QT602240_TOUCH_XSIZE		3
-#define QT602240_TOUCH_YSIZE		4
-#define QT602240_TOUCH_BLEN		6
-#define QT602240_TOUCH_TCHTHR		7
-#define QT602240_TOUCH_TCHDI		8
-#define QT602240_TOUCH_ORIENT		9
-#define QT602240_TOUCH_MOVHYSTI		11
-#define QT602240_TOUCH_MOVHYSTN		12
-#define QT602240_TOUCH_NUMTOUCH		14
-#define QT602240_TOUCH_MRGHYST		15
-#define QT602240_TOUCH_MRGTHR		16
-#define QT602240_TOUCH_AMPHYST		17
-#define QT602240_TOUCH_XRANGE_LSB	18
-#define QT602240_TOUCH_XRANGE_MSB	19
-#define QT602240_TOUCH_YRANGE_LSB	20
-#define QT602240_TOUCH_YRANGE_MSB	21
-#define QT602240_TOUCH_XLOCLIP		22
-#define QT602240_TOUCH_XHICLIP		23
-#define QT602240_TOUCH_YLOCLIP		24
-#define QT602240_TOUCH_YHICLIP		25
-#define QT602240_TOUCH_XEDGECTRL	26
-#define QT602240_TOUCH_XEDGEDIST	27
-#define QT602240_TOUCH_YEDGECTRL	28
-#define QT602240_TOUCH_YEDGEDIST	29
-#define QT602240_TOUCH_JUMPLIMIT	30	/* firmware ver 22 over */
-
-/* QT602240_PROCI_GRIPFACE field */
-#define QT602240_GRIPFACE_CTRL		0
-#define QT602240_GRIPFACE_XLOGRIP	1
-#define QT602240_GRIPFACE_XHIGRIP	2
-#define QT602240_GRIPFACE_YLOGRIP	3
-#define QT602240_GRIPFACE_YHIGRIP	4
-#define QT602240_GRIPFACE_MAXTCHS	5
-#define QT602240_GRIPFACE_SZTHR1	7
-#define QT602240_GRIPFACE_SZTHR2	8
-#define QT602240_GRIPFACE_SHPTHR1	9
-#define QT602240_GRIPFACE_SHPTHR2	10
-#define QT602240_GRIPFACE_SUPEXTTO	11
-
-/* QT602240_PROCI_NOISE field */
-#define QT602240_NOISE_CTRL		0
-#define QT602240_NOISE_OUTFLEN		1
-#define QT602240_NOISE_GCAFUL_LSB	3
-#define QT602240_NOISE_GCAFUL_MSB	4
-#define QT602240_NOISE_GCAFLL_LSB	5
-#define QT602240_NOISE_GCAFLL_MSB	6
-#define QT602240_NOISE_ACTVGCAFVALID	7
-#define QT602240_NOISE_NOISETHR		8
-#define QT602240_NOISE_FREQHOPSCALE	10
-#define QT602240_NOISE_FREQ0		11
-#define QT602240_NOISE_FREQ1		12
-#define QT602240_NOISE_FREQ2		13
-#define QT602240_NOISE_FREQ3		14
-#define QT602240_NOISE_FREQ4		15
-#define QT602240_NOISE_IDLEGCAFVALID	16
-
-/* QT602240_SPT_COMMSCONFIG */
-#define QT602240_COMMS_CTRL		0
-#define QT602240_COMMS_CMD		1
-
-/* QT602240_SPT_CTECONFIG field */
-#define QT602240_CTE_CTRL		0
-#define QT602240_CTE_CMD		1
-#define QT602240_CTE_MODE		2
-#define QT602240_CTE_IDLEGCAFDEPTH	3
-#define QT602240_CTE_ACTVGCAFDEPTH	4
-#define QT602240_CTE_VOLTAGE		5	/* firmware ver 21 over */
-
-#define QT602240_VOLTAGE_DEFAULT	2700000
-#define QT602240_VOLTAGE_STEP		10000
-
-/* Define for QT602240_GEN_COMMAND */
-#define QT602240_BOOT_VALUE		0xa5
-#define QT602240_BACKUP_VALUE		0x55
-#define QT602240_BACKUP_TIME		25	/* msec */
-#define QT602240_RESET_TIME		65	/* msec */
-
-#define QT602240_FWRESET_TIME		175	/* msec */
-
-/* Command to unlock bootloader */
-#define QT602240_UNLOCK_CMD_MSB		0xaa
-#define QT602240_UNLOCK_CMD_LSB		0xdc
-
-/* Bootloader mode status */
-#define QT602240_WAITING_BOOTLOAD_CMD	0xc0	/* valid 7 6 bit only */
-#define QT602240_WAITING_FRAME_DATA	0x80	/* valid 7 6 bit only */
-#define QT602240_FRAME_CRC_CHECK	0x02
-#define QT602240_FRAME_CRC_FAIL		0x03
-#define QT602240_FRAME_CRC_PASS		0x04
-#define QT602240_APP_CRC_FAIL		0x40	/* valid 7 8 bit only */
-#define QT602240_BOOT_STATUS_MASK	0x3f
-
-/* Touch status */
-#define QT602240_SUPPRESS		(1 << 1)
-#define QT602240_AMP			(1 << 2)
-#define QT602240_VECTOR			(1 << 3)
-#define QT602240_MOVE			(1 << 4)
-#define QT602240_RELEASE		(1 << 5)
-#define QT602240_PRESS			(1 << 6)
-#define QT602240_DETECT			(1 << 7)
-
-/* Touchscreen absolute values */
-#define QT602240_MAX_XC			0x3ff
-#define QT602240_MAX_YC			0x3ff
-#define QT602240_MAX_AREA		0xff
-
-#define QT602240_MAX_FINGER		10
-
-/* Initial register values recommended from chip vendor */
-static const u8 init_vals_ver_20[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04,
-	0x1e, 0x00,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00,
-	0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x04, 0x08,
-};
-
-static const u8 init_vals_ver_21[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
-	0x0f, 0x0a,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
-	0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-static const u8 init_vals_ver_22[] = {
-	/* QT602240_GEN_COMMAND(6) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_GEN_POWER(7) */
-	0x20, 0xff, 0x32,
-	/* QT602240_GEN_ACQUIRE(8) */
-	0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
-	/* QT602240_TOUCH_MULTI(9) */
-	0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_TOUCH_KEYARRAY(15) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00,
-	/* QT602240_SPT_GPIOPWM(19) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_GRIPFACE(20) */
-	0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
-	0x0f, 0x0a,
-	/* QT602240_PROCG_NOISE(22) */
-	0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
-	0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
-	/* QT602240_TOUCH_PROXIMITY(23) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_ONETOUCH(24) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_SELFTEST(25) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00,
-	/* QT602240_PROCI_TWOTOUCH(27) */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	/* QT602240_SPT_CTECONFIG(28) */
-	0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-struct qt602240_info {
-	u8 family_id;
-	u8 variant_id;
-	u8 version;
-	u8 build;
-	u8 matrix_xsize;
-	u8 matrix_ysize;
-	u8 object_num;
-};
-
-struct qt602240_object {
-	u8 type;
-	u16 start_address;
-	u8 size;
-	u8 instances;
-	u8 num_report_ids;
-
-	/* to map object and message */
-	u8 max_reportid;
-};
-
-struct qt602240_message {
-	u8 reportid;
-	u8 message[7];
-	u8 checksum;
-};
-
-struct qt602240_finger {
-	int status;
-	int x;
-	int y;
-	int area;
-};
-
-/* Each client has this additional data */
-struct qt602240_data {
-	struct i2c_client *client;
-	struct input_dev *input_dev;
-	const struct qt602240_platform_data *pdata;
-	struct qt602240_object *object_table;
-	struct qt602240_info info;
-	struct qt602240_finger finger[QT602240_MAX_FINGER];
-	unsigned int irq;
-};
-
-static bool qt602240_object_readable(unsigned int type)
-{
-	switch (type) {
-	case QT602240_GEN_MESSAGE:
-	case QT602240_GEN_COMMAND:
-	case QT602240_GEN_POWER:
-	case QT602240_GEN_ACQUIRE:
-	case QT602240_TOUCH_MULTI:
-	case QT602240_TOUCH_KEYARRAY:
-	case QT602240_TOUCH_PROXIMITY:
-	case QT602240_PROCI_GRIPFACE:
-	case QT602240_PROCG_NOISE:
-	case QT602240_PROCI_ONETOUCH:
-	case QT602240_PROCI_TWOTOUCH:
-	case QT602240_SPT_COMMSCONFIG:
-	case QT602240_SPT_GPIOPWM:
-	case QT602240_SPT_SELFTEST:
-	case QT602240_SPT_CTECONFIG:
-	case QT602240_SPT_USERDATA:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static bool qt602240_object_writable(unsigned int type)
-{
-	switch (type) {
-	case QT602240_GEN_COMMAND:
-	case QT602240_GEN_POWER:
-	case QT602240_GEN_ACQUIRE:
-	case QT602240_TOUCH_MULTI:
-	case QT602240_TOUCH_KEYARRAY:
-	case QT602240_TOUCH_PROXIMITY:
-	case QT602240_PROCI_GRIPFACE:
-	case QT602240_PROCG_NOISE:
-	case QT602240_PROCI_ONETOUCH:
-	case QT602240_PROCI_TWOTOUCH:
-	case QT602240_SPT_GPIOPWM:
-	case QT602240_SPT_SELFTEST:
-	case QT602240_SPT_CTECONFIG:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static void qt602240_dump_message(struct device *dev,
-				  struct qt602240_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);
-}
-
-static int qt602240_check_bootloader(struct i2c_client *client,
-				     unsigned int state)
-{
-	u8 val;
-
-recheck:
-	if (i2c_master_recv(client, &val, 1) != 1) {
-		dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
-		return -EIO;
-	}
-
-	switch (state) {
-	case QT602240_WAITING_BOOTLOAD_CMD:
-	case QT602240_WAITING_FRAME_DATA:
-		val &= ~QT602240_BOOT_STATUS_MASK;
-		break;
-	case QT602240_FRAME_CRC_PASS:
-		if (val == QT602240_FRAME_CRC_CHECK)
-			goto recheck;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (val != state) {
-		dev_err(&client->dev, "Unvalid bootloader mode state\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int qt602240_unlock_bootloader(struct i2c_client *client)
-{
-	u8 buf[2];
-
-	buf[0] = QT602240_UNLOCK_CMD_LSB;
-	buf[1] = QT602240_UNLOCK_CMD_MSB;
-
-	if (i2c_master_send(client, buf, 2) != 2) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_fw_write(struct i2c_client *client,
-			     const u8 *data, unsigned int frame_size)
-{
-	if (i2c_master_send(client, data, frame_size) != frame_size) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int __qt602240_read_reg(struct i2c_client *client,
-			       u16 reg, u16 len, void *val)
-{
-	struct i2c_msg xfer[2];
-	u8 buf[2];
-
-	buf[0] = reg & 0xff;
-	buf[1] = (reg >> 8) & 0xff;
-
-	/* Write register */
-	xfer[0].addr = client->addr;
-	xfer[0].flags = 0;
-	xfer[0].len = 2;
-	xfer[0].buf = buf;
-
-	/* Read data */
-	xfer[1].addr = client->addr;
-	xfer[1].flags = I2C_M_RD;
-	xfer[1].len = len;
-	xfer[1].buf = val;
-
-	if (i2c_transfer(client->adapter, xfer, 2) != 2) {
-		dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_read_reg(struct i2c_client *client, u16 reg, u8 *val)
-{
-	return __qt602240_read_reg(client, reg, 1, val);
-}
-
-static int qt602240_write_reg(struct i2c_client *client, u16 reg, u8 val)
-{
-	u8 buf[3];
-
-	buf[0] = reg & 0xff;
-	buf[1] = (reg >> 8) & 0xff;
-	buf[2] = val;
-
-	if (i2c_master_send(client, buf, 3) != 3) {
-		dev_err(&client->dev, "%s: i2c send failed\n", __func__);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int qt602240_read_object_table(struct i2c_client *client,
-				      u16 reg, u8 *object_buf)
-{
-	return __qt602240_read_reg(client, reg, QT602240_OBJECT_SIZE,
-				   object_buf);
-}
-
-static struct qt602240_object *
-qt602240_get_object(struct qt602240_data *data, u8 type)
-{
-	struct qt602240_object *object;
-	int i;
-
-	for (i = 0; i < data->info.object_num; i++) {
-		object = data->object_table + i;
-		if (object->type == type)
-			return object;
-	}
-
-	dev_err(&data->client->dev, "Invalid object type\n");
-	return NULL;
-}
-
-static int qt602240_read_message(struct qt602240_data *data,
-				 struct qt602240_message *message)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, QT602240_GEN_MESSAGE);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return __qt602240_read_reg(data->client, reg,
-			sizeof(struct qt602240_message), message);
-}
-
-static int qt602240_read_object(struct qt602240_data *data,
-				u8 type, u8 offset, u8 *val)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, type);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return __qt602240_read_reg(data->client, reg + offset, 1, val);
-}
-
-static int qt602240_write_object(struct qt602240_data *data,
-				 u8 type, u8 offset, u8 val)
-{
-	struct qt602240_object *object;
-	u16 reg;
-
-	object = qt602240_get_object(data, type);
-	if (!object)
-		return -EINVAL;
-
-	reg = object->start_address;
-	return qt602240_write_reg(data->client, reg + offset, val);
-}
-
-static void qt602240_input_report(struct qt602240_data *data, int single_id)
-{
-	struct qt602240_finger *finger = data->finger;
-	struct input_dev *input_dev = data->input_dev;
-	int status = finger[single_id].status;
-	int finger_num = 0;
-	int id;
-
-	for (id = 0; id < QT602240_MAX_FINGER; id++) {
-		if (!finger[id].status)
-			continue;
-
-		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
-				finger[id].status != QT602240_RELEASE ?
-				finger[id].area : 0);
-		input_report_abs(input_dev, ABS_MT_POSITION_X,
-				finger[id].x);
-		input_report_abs(input_dev, ABS_MT_POSITION_Y,
-				finger[id].y);
-		input_mt_sync(input_dev);
-
-		if (finger[id].status == QT602240_RELEASE)
-			finger[id].status = 0;
-		else
-			finger_num++;
-	}
-
-	input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
-
-	if (status != QT602240_RELEASE) {
-		input_report_abs(input_dev, ABS_X, finger[single_id].x);
-		input_report_abs(input_dev, ABS_Y, finger[single_id].y);
-	}
-
-	input_sync(input_dev);
-}
-
-static void qt602240_input_touchevent(struct qt602240_data *data,
-				      struct qt602240_message *message, int id)
-{
-	struct qt602240_finger *finger = data->finger;
-	struct device *dev = &data->client->dev;
-	u8 status = message->message[0];
-	int x;
-	int y;
-	int area;
-
-	/* Check the touch is present on the screen */
-	if (!(status & QT602240_DETECT)) {
-		if (status & QT602240_RELEASE) {
-			dev_dbg(dev, "[%d] released\n", id);
-
-			finger[id].status = QT602240_RELEASE;
-			qt602240_input_report(data, id);
-		}
-		return;
-	}
-
-	/* Check only AMP detection */
-	if (!(status & (QT602240_PRESS | QT602240_MOVE)))
-		return;
-
-	x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
-	y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
-	area = message->message[4];
-
-	dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
-		status & QT602240_MOVE ? "moved" : "pressed",
-		x, y, area);
-
-	finger[id].status = status & QT602240_MOVE ?
-				QT602240_MOVE : QT602240_PRESS;
-	finger[id].x = x;
-	finger[id].y = y;
-	finger[id].area = area;
-
-	qt602240_input_report(data, id);
-}
-
-static irqreturn_t qt602240_interrupt(int irq, void *dev_id)
-{
-	struct qt602240_data *data = dev_id;
-	struct qt602240_message message;
-	struct qt602240_object *object;
-	struct device *dev = &data->client->dev;
-	int id;
-	u8 reportid;
-	u8 max_reportid;
-	u8 min_reportid;
-
-	do {
-		if (qt602240_read_message(data, &message)) {
-			dev_err(dev, "Failed to read message\n");
-			goto end;
-		}
-
-		reportid = message.reportid;
-
-		/* whether reportid is thing of QT602240_TOUCH_MULTI */
-		object = qt602240_get_object(data, QT602240_TOUCH_MULTI);
-		if (!object)
-			goto end;
-
-		max_reportid = object->max_reportid;
-		min_reportid = max_reportid - object->num_report_ids + 1;
-		id = reportid - min_reportid;
-
-		if (reportid >= min_reportid && reportid <= max_reportid)
-			qt602240_input_touchevent(data, &message, id);
-		else
-			qt602240_dump_message(dev, &message);
-	} while (reportid != 0xff);
-
-end:
-	return IRQ_HANDLED;
-}
-
-static int qt602240_check_reg_init(struct qt602240_data *data)
-{
-	struct qt602240_object *object;
-	struct device *dev = &data->client->dev;
-	int index = 0;
-	int i, j;
-	u8 version = data->info.version;
-	u8 *init_vals;
-
-	switch (version) {
-	case QT602240_VER_20:
-		init_vals = (u8 *)init_vals_ver_20;
-		break;
-	case QT602240_VER_21:
-		init_vals = (u8 *)init_vals_ver_21;
-		break;
-	case QT602240_VER_22:
-		init_vals = (u8 *)init_vals_ver_22;
-		break;
-	default:
-		dev_err(dev, "Firmware version %d doesn't support\n", version);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < data->info.object_num; i++) {
-		object = data->object_table + i;
-
-		if (!qt602240_object_writable(object->type))
-			continue;
-
-		for (j = 0; j < object->size + 1; j++)
-			qt602240_write_object(data, object->type, j,
-					init_vals[index + j]);
-
-		index += object->size + 1;
-	}
-
-	return 0;
-}
-
-static int qt602240_check_matrix_size(struct qt602240_data *data)
-{
-	const struct qt602240_platform_data *pdata = data->pdata;
-	struct device *dev = &data->client->dev;
-	int mode = -1;
-	int error;
-	u8 val;
-
-	dev_dbg(dev, "Number of X lines: %d\n", pdata->x_line);
-	dev_dbg(dev, "Number of Y lines: %d\n", pdata->y_line);
-
-	switch (pdata->x_line) {
-	case 0 ... 15:
-		if (pdata->y_line <= 14)
-			mode = 0;
-		break;
-	case 16:
-		if (pdata->y_line <= 12)
-			mode = 1;
-		if (pdata->y_line == 13 || pdata->y_line == 14)
-			mode = 0;
-		break;
-	case 17:
-		if (pdata->y_line <= 11)
-			mode = 2;
-		if (pdata->y_line == 12 || pdata->y_line == 13)
-			mode = 1;
-		break;
-	case 18:
-		if (pdata->y_line <= 10)
-			mode = 3;
-		if (pdata->y_line == 11 || pdata->y_line == 12)
-			mode = 2;
-		break;
-	case 19:
-		if (pdata->y_line <= 9)
-			mode = 4;
-		if (pdata->y_line == 10 || pdata->y_line == 11)
-			mode = 3;
-		break;
-	case 20:
-		mode = 4;
-	}
-
-	if (mode < 0) {
-		dev_err(dev, "Invalid X/Y lines\n");
-		return -EINVAL;
-	}
-
-	error = qt602240_read_object(data, QT602240_SPT_CTECONFIG,
-				QT602240_CTE_MODE, &val);
-	if (error)
-		return error;
-
-	if (mode == val)
-		return 0;
-
-	/* Change the CTE configuration */
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_CTRL, 1);
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_MODE, mode);
-	qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-			QT602240_CTE_CTRL, 0);
-
-	return 0;
-}
-
-static int qt602240_make_highchg(struct qt602240_data *data)
-{
-	struct device *dev = &data->client->dev;
-	int count = 10;
-	int error;
-	u8 val;
-
-	/* Read dummy message to make high CHG pin */
-	do {
-		error = qt602240_read_object(data, QT602240_GEN_MESSAGE, 0, &val);
-		if (error)
-			return error;
-	} while ((val != 0xff) && --count);
-
-	if (!count) {
-		dev_err(dev, "CHG pin isn't cleared\n");
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-static void qt602240_handle_pdata(struct qt602240_data *data)
-{
-	const struct qt602240_platform_data *pdata = data->pdata;
-	u8 voltage;
-
-	/* Set touchscreen lines */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_XSIZE,
-			pdata->x_line);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_YSIZE,
-			pdata->y_line);
-
-	/* Set touchscreen orient */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_ORIENT,
-			pdata->orient);
-
-	/* Set touchscreen burst length */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_BLEN, pdata->blen);
-
-	/* Set touchscreen threshold */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_TCHTHR, pdata->threshold);
-
-	/* Set touchscreen resolution */
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
-	qt602240_write_object(data, QT602240_TOUCH_MULTI,
-			QT602240_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
-
-	/* Set touchscreen voltage */
-	if (data->info.version >= QT602240_VER_21 && pdata->voltage) {
-		if (pdata->voltage < QT602240_VOLTAGE_DEFAULT) {
-			voltage = (QT602240_VOLTAGE_DEFAULT - pdata->voltage) /
-				QT602240_VOLTAGE_STEP;
-			voltage = 0xff - voltage + 1;
-		} else
-			voltage = (pdata->voltage - QT602240_VOLTAGE_DEFAULT) /
-				QT602240_VOLTAGE_STEP;
-
-		qt602240_write_object(data, QT602240_SPT_CTECONFIG,
-				QT602240_CTE_VOLTAGE, voltage);
-	}
-}
-
-static int qt602240_get_info(struct qt602240_data *data)
-{
-	struct i2c_client *client = data->client;
-	struct qt602240_info *info = &data->info;
-	int error;
-	u8 val;
-
-	error = qt602240_read_reg(client, QT602240_FAMILY_ID, &val);
-	if (error)
-		return error;
-	info->family_id = val;
-
-	error = qt602240_read_reg(client, QT602240_VARIANT_ID, &val);
-	if (error)
-		return error;
-	info->variant_id = val;
-
-	error = qt602240_read_reg(client, QT602240_VERSION, &val);
-	if (error)
-		return error;
-	info->version = val;
-
-	error = qt602240_read_reg(client, QT602240_BUILD, &val);
-	if (error)
-		return error;
-	info->build = val;
-
-	error = qt602240_read_reg(client, QT602240_OBJECT_NUM, &val);
-	if (error)
-		return error;
-	info->object_num = val;
-
-	return 0;
-}
-
-static int qt602240_get_object_table(struct qt602240_data *data)
-{
-	int error;
-	int i;
-	u16 reg;
-	u8 reportid = 0;
-	u8 buf[QT602240_OBJECT_SIZE];
-
-	for (i = 0; i < data->info.object_num; i++) {
-		struct qt602240_object *object = data->object_table + i;
-
-		reg = QT602240_OBJECT_START + QT602240_OBJECT_SIZE * i;
-		error = qt602240_read_object_table(data->client, reg, buf);
-		if (error)
-			return error;
-
-		object->type = buf[0];
-		object->start_address = (buf[2] << 8) | buf[1];
-		object->size = buf[3];
-		object->instances = buf[4];
-		object->num_report_ids = buf[5];
-
-		if (object->num_report_ids) {
-			reportid += object->num_report_ids *
-					(object->instances + 1);
-			object->max_reportid = reportid;
-		}
-	}
-
-	return 0;
-}
-
-static int qt602240_initialize(struct qt602240_data *data)
-{
-	struct i2c_client *client = data->client;
-	struct qt602240_info *info = &data->info;
-	int error;
-	u8 val;
-
-	error = qt602240_get_info(data);
-	if (error)
-		return error;
-
-	data->object_table = kcalloc(info->object_num,
-				     sizeof(struct qt602240_object),
-				     GFP_KERNEL);
-	if (!data->object_table) {
-		dev_err(&client->dev, "Failed to allocate memory\n");
-		return -ENOMEM;
-	}
-
-	/* Get object table information */
-	error = qt602240_get_object_table(data);
-	if (error)
-		return error;
-
-	/* Check register init values */
-	error = qt602240_check_reg_init(data);
-	if (error)
-		return error;
-
-	/* Check X/Y matrix size */
-	error = qt602240_check_matrix_size(data);
-	if (error)
-		return error;
-
-	error = qt602240_make_highchg(data);
-	if (error)
-		return error;
-
-	qt602240_handle_pdata(data);
-
-	/* Backup to memory */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_BACKUPNV,
-			QT602240_BACKUP_VALUE);
-	msleep(QT602240_BACKUP_TIME);
-
-	/* Soft reset */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, 1);
-	msleep(QT602240_RESET_TIME);
-
-	/* Update matrix size at info struct */
-	error = qt602240_read_reg(client, QT602240_MATRIX_X_SIZE, &val);
-	if (error)
-		return error;
-	info->matrix_xsize = val;
-
-	error = qt602240_read_reg(client, QT602240_MATRIX_Y_SIZE, &val);
-	if (error)
-		return error;
-	info->matrix_ysize = val;
-
-	dev_info(&client->dev,
-			"Family ID: %d Variant ID: %d Version: %d Build: %d\n",
-			info->family_id, info->variant_id, info->version,
-			info->build);
-
-	dev_info(&client->dev,
-			"Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
-			info->matrix_xsize, info->matrix_ysize,
-			info->object_num);
-
-	return 0;
-}
-
-static ssize_t qt602240_object_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	struct qt602240_object *object;
-	int count = 0;
-	int i, j;
-	int error;
-	u8 val;
-
-	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",
-				i + 1, object->type);
-
-		if (!qt602240_object_readable(object->type)) {
-			count += sprintf(buf + count, "\n");
-			continue;
-		}
-
-		for (j = 0; j < object->size + 1; j++) {
-			error = qt602240_read_object(data,
-						object->type, j, &val);
-			if (error)
-				return error;
-
-			count += sprintf(buf + count,
-					"  Byte %d: 0x%x (%d)\n", j, val, val);
-		}
-
-		count += sprintf(buf + count, "\n");
-	}
-
-	return count;
-}
-
-static int qt602240_load_fw(struct device *dev, const char *fn)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	struct i2c_client *client = data->client;
-	const struct firmware *fw = NULL;
-	unsigned int frame_size;
-	unsigned int pos = 0;
-	int ret;
-
-	ret = request_firmware(&fw, fn, dev);
-	if (ret) {
-		dev_err(dev, "Unable to open firmware %s\n", fn);
-		return ret;
-	}
-
-	/* Change to the bootloader mode */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, QT602240_BOOT_VALUE);
-	msleep(QT602240_RESET_TIME);
-
-	/* Change to slave address of bootloader */
-	if (client->addr == QT602240_APP_LOW)
-		client->addr = QT602240_BOOT_LOW;
-	else
-		client->addr = QT602240_BOOT_HIGH;
-
-	ret = qt602240_check_bootloader(client, QT602240_WAITING_BOOTLOAD_CMD);
-	if (ret)
-		goto out;
-
-	/* Unlock bootloader */
-	qt602240_unlock_bootloader(client);
-
-	while (pos < fw->size) {
-		ret = qt602240_check_bootloader(client,
-						QT602240_WAITING_FRAME_DATA);
-		if (ret)
-			goto out;
-
-		frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
-
-		/* We should add 2 at frame size as the the firmware data is not
-		 * included the CRC bytes.
-		 */
-		frame_size += 2;
-
-		/* Write one frame to device */
-		qt602240_fw_write(client, fw->data + pos, frame_size);
-
-		ret = qt602240_check_bootloader(client,
-						QT602240_FRAME_CRC_PASS);
-		if (ret)
-			goto out;
-
-		pos += frame_size;
-
-		dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
-	}
-
-out:
-	release_firmware(fw);
-
-	/* Change to slave address of application */
-	if (client->addr == QT602240_BOOT_LOW)
-		client->addr = QT602240_APP_LOW;
-	else
-		client->addr = QT602240_APP_HIGH;
-
-	return ret;
-}
-
-static ssize_t qt602240_update_fw_store(struct device *dev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-	struct qt602240_data *data = dev_get_drvdata(dev);
-	unsigned int version;
-	int error;
-
-	if (sscanf(buf, "%u", &version) != 1) {
-		dev_err(dev, "Invalid values\n");
-		return -EINVAL;
-	}
-
-	if (data->info.version < QT602240_VER_21 || version < QT602240_VER_21) {
-		dev_err(dev, "FW update supported starting with version 21\n");
-		return -EINVAL;
-	}
-
-	disable_irq(data->irq);
-
-	error = qt602240_load_fw(dev, QT602240_FW_NAME);
-	if (error) {
-		dev_err(dev, "The firmware update failed(%d)\n", error);
-		count = error;
-	} else {
-		dev_dbg(dev, "The firmware update succeeded\n");
-
-		/* Wait for reset */
-		msleep(QT602240_FWRESET_TIME);
-
-		kfree(data->object_table);
-		data->object_table = NULL;
-
-		qt602240_initialize(data);
-	}
-
-	enable_irq(data->irq);
-
-	return count;
-}
-
-static DEVICE_ATTR(object, 0444, qt602240_object_show, NULL);
-static DEVICE_ATTR(update_fw, 0664, NULL, qt602240_update_fw_store);
-
-static struct attribute *qt602240_attrs[] = {
-	&dev_attr_object.attr,
-	&dev_attr_update_fw.attr,
-	NULL
-};
-
-static const struct attribute_group qt602240_attr_group = {
-	.attrs = qt602240_attrs,
-};
-
-static void qt602240_start(struct qt602240_data *data)
-{
-	/* Touch enable */
-	qt602240_write_object(data,
-			QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0x83);
-}
-
-static void qt602240_stop(struct qt602240_data *data)
-{
-	/* Touch disable */
-	qt602240_write_object(data,
-			QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0);
-}
-
-static int qt602240_input_open(struct input_dev *dev)
-{
-	struct qt602240_data *data = input_get_drvdata(dev);
-
-	qt602240_start(data);
-
-	return 0;
-}
-
-static void qt602240_input_close(struct input_dev *dev)
-{
-	struct qt602240_data *data = input_get_drvdata(dev);
-
-	qt602240_stop(data);
-}
-
-static int __devinit qt602240_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
-{
-	struct qt602240_data *data;
-	struct input_dev *input_dev;
-	int error;
-
-	if (!client->dev.platform_data)
-		return -EINVAL;
-
-	data = kzalloc(sizeof(struct qt602240_data), GFP_KERNEL);
-	input_dev = input_allocate_device();
-	if (!data || !input_dev) {
-		dev_err(&client->dev, "Failed to allocate memory\n");
-		error = -ENOMEM;
-		goto err_free_mem;
-	}
-
-	input_dev->name = "AT42QT602240/ATMXT224 Touchscreen";
-	input_dev->id.bustype = BUS_I2C;
-	input_dev->dev.parent = &client->dev;
-	input_dev->open = qt602240_input_open;
-	input_dev->close = qt602240_input_close;
-
-	__set_bit(EV_ABS, input_dev->evbit);
-	__set_bit(EV_KEY, input_dev->evbit);
-	__set_bit(BTN_TOUCH, input_dev->keybit);
-
-	/* For single touch */
-	input_set_abs_params(input_dev, ABS_X,
-			     0, QT602240_MAX_XC, 0, 0);
-	input_set_abs_params(input_dev, ABS_Y,
-			     0, QT602240_MAX_YC, 0, 0);
-
-	/* For multi touch */
-	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
-			     0, QT602240_MAX_AREA, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
-			     0, QT602240_MAX_XC, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
-			     0, QT602240_MAX_YC, 0, 0);
-
-	input_set_drvdata(input_dev, data);
-
-	data->client = client;
-	data->input_dev = input_dev;
-	data->pdata = client->dev.platform_data;
-	data->irq = client->irq;
-
-	i2c_set_clientdata(client, data);
-
-	error = qt602240_initialize(data);
-	if (error)
-		goto err_free_object;
-
-	error = request_threaded_irq(client->irq, NULL, qt602240_interrupt,
-			IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
-	if (error) {
-		dev_err(&client->dev, "Failed to register interrupt\n");
-		goto err_free_object;
-	}
-
-	error = input_register_device(input_dev);
-	if (error)
-		goto err_free_irq;
-
-	error = sysfs_create_group(&client->dev.kobj, &qt602240_attr_group);
-	if (error)
-		goto err_unregister_device;
-
-	return 0;
-
-err_unregister_device:
-	input_unregister_device(input_dev);
-	input_dev = NULL;
-err_free_irq:
-	free_irq(client->irq, data);
-err_free_object:
-	kfree(data->object_table);
-err_free_mem:
-	input_free_device(input_dev);
-	kfree(data);
-	return error;
-}
-
-static int __devexit qt602240_remove(struct i2c_client *client)
-{
-	struct qt602240_data *data = i2c_get_clientdata(client);
-
-	sysfs_remove_group(&client->dev.kobj, &qt602240_attr_group);
-	free_irq(data->irq, data);
-	input_unregister_device(data->input_dev);
-	kfree(data->object_table);
-	kfree(data);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int qt602240_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct qt602240_data *data = i2c_get_clientdata(client);
-	struct input_dev *input_dev = data->input_dev;
-
-	mutex_lock(&input_dev->mutex);
-
-	if (input_dev->users)
-		qt602240_stop(data);
-
-	mutex_unlock(&input_dev->mutex);
-
-	return 0;
-}
-
-static int qt602240_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct qt602240_data *data = i2c_get_clientdata(client);
-	struct input_dev *input_dev = data->input_dev;
-
-	/* Soft reset */
-	qt602240_write_object(data, QT602240_GEN_COMMAND,
-			QT602240_COMMAND_RESET, 1);
-
-	msleep(QT602240_RESET_TIME);
-
-	mutex_lock(&input_dev->mutex);
-
-	if (input_dev->users)
-		qt602240_start(data);
-
-	mutex_unlock(&input_dev->mutex);
-
-	return 0;
-}
-
-static const struct dev_pm_ops qt602240_pm_ops = {
-	.suspend	= qt602240_suspend,
-	.resume		= qt602240_resume,
-};
-#endif
-
-static const struct i2c_device_id qt602240_id[] = {
-	{ "qt602240_ts", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, qt602240_id);
-
-static struct i2c_driver qt602240_driver = {
-	.driver = {
-		.name	= "qt602240_ts",
-		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
-		.pm	= &qt602240_pm_ops,
-#endif
-	},
-	.probe		= qt602240_probe,
-	.remove		= __devexit_p(qt602240_remove),
-	.id_table	= qt602240_id,
-};
-
-static int __init qt602240_init(void)
-{
-	return i2c_add_driver(&qt602240_driver);
-}
-
-static void __exit qt602240_exit(void)
-{
-	i2c_del_driver(&qt602240_driver);
-}
-
-module_init(qt602240_init);
-module_exit(qt602240_exit);
-
-/* Module information */
-MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
-MODULE_DESCRIPTION("AT42QT602240/ATMXT224 Touchscreen driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
new file mode 100644
index 00000000000..87420616efa
--- /dev/null
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -0,0 +1,756 @@
+/*
+ * TSC2005 touchscreen driver
+ *
+ * Copyright (C) 2006-2010 Nokia Corporation
+ *
+ * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
+ * based on TSC2301 driver by Klaus K. Pedersen <klaus.k.pedersen@nokia.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.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc2005.h>
+
+/*
+ * The touchscreen interface operates as follows:
+ *
+ * 1) Pen is pressed against the touchscreen.
+ * 2) TSC2005 performs AD conversion.
+ * 3) After the conversion is done TSC2005 drives DAV line down.
+ * 4) GPIO IRQ is received and tsc2005_irq_thread() is scheduled.
+ * 5) tsc2005_irq_thread() queues up an spi transfer to fetch the x, y, z1, z2
+ *    values.
+ * 6) tsc2005_irq_thread() reports coordinates to input layer and sets up
+ *    tsc2005_penup_timer() to be called after TSC2005_PENUP_TIME_MS (40ms).
+ * 7) When the penup timer expires, there have not been touch or DAV interrupts
+ *    during the last 40ms which means the pen has been lifted.
+ *
+ * ESD recovery via a hardware reset is done if the TSC2005 doesn't respond
+ * after a configurable period (in ms) of activity. If esd_timeout is 0, the
+ * watchdog is disabled.
+ */
+
+/* control byte 1 */
+#define TSC2005_CMD			0x80
+#define TSC2005_CMD_NORMAL		0x00
+#define TSC2005_CMD_STOP		0x01
+#define TSC2005_CMD_12BIT		0x04
+
+/* control byte 0 */
+#define TSC2005_REG_READ		0x0001
+#define TSC2005_REG_PND0		0x0002
+#define TSC2005_REG_X			0x0000
+#define TSC2005_REG_Y			0x0008
+#define TSC2005_REG_Z1			0x0010
+#define TSC2005_REG_Z2			0x0018
+#define TSC2005_REG_TEMP_HIGH		0x0050
+#define TSC2005_REG_CFR0		0x0060
+#define TSC2005_REG_CFR1		0x0068
+#define TSC2005_REG_CFR2		0x0070
+
+/* configuration register 0 */
+#define TSC2005_CFR0_PRECHARGE_276US	0x0040
+#define TSC2005_CFR0_STABTIME_1MS	0x0300
+#define TSC2005_CFR0_CLOCK_1MHZ		0x1000
+#define TSC2005_CFR0_RESOLUTION12	0x2000
+#define TSC2005_CFR0_PENMODE		0x8000
+#define TSC2005_CFR0_INITVALUE		(TSC2005_CFR0_STABTIME_1MS    | \
+					 TSC2005_CFR0_CLOCK_1MHZ      | \
+					 TSC2005_CFR0_RESOLUTION12    | \
+					 TSC2005_CFR0_PRECHARGE_276US | \
+					 TSC2005_CFR0_PENMODE)
+
+/* bits common to both read and write of configuration register 0 */
+#define	TSC2005_CFR0_RW_MASK		0x3fff
+
+/* configuration register 1 */
+#define TSC2005_CFR1_BATCHDELAY_4MS	0x0003
+#define TSC2005_CFR1_INITVALUE		TSC2005_CFR1_BATCHDELAY_4MS
+
+/* configuration register 2 */
+#define TSC2005_CFR2_MAVE_Z		0x0004
+#define TSC2005_CFR2_MAVE_Y		0x0008
+#define TSC2005_CFR2_MAVE_X		0x0010
+#define TSC2005_CFR2_AVG_7		0x0800
+#define TSC2005_CFR2_MEDIUM_15		0x3000
+#define TSC2005_CFR2_INITVALUE		(TSC2005_CFR2_MAVE_X	| \
+					 TSC2005_CFR2_MAVE_Y	| \
+					 TSC2005_CFR2_MAVE_Z	| \
+					 TSC2005_CFR2_MEDIUM_15	| \
+					 TSC2005_CFR2_AVG_7)
+
+#define MAX_12BIT			0xfff
+#define TSC2005_SPI_MAX_SPEED_HZ	10000000
+#define TSC2005_PENUP_TIME_MS		40
+
+struct tsc2005_spi_rd {
+	struct spi_transfer	spi_xfer;
+	u32			spi_tx;
+	u32			spi_rx;
+};
+
+struct tsc2005 {
+	struct spi_device	*spi;
+
+	struct spi_message      spi_read_msg;
+	struct tsc2005_spi_rd	spi_x;
+	struct tsc2005_spi_rd	spi_y;
+	struct tsc2005_spi_rd	spi_z1;
+	struct tsc2005_spi_rd	spi_z2;
+
+	struct input_dev	*idev;
+	char			phys[32];
+
+	struct mutex		mutex;
+
+	/* raw copy of previous x,y,z */
+	int			in_x;
+	int			in_y;
+	int                     in_z1;
+	int			in_z2;
+
+	spinlock_t		lock;
+	struct timer_list	penup_timer;
+
+	unsigned int		esd_timeout;
+	struct delayed_work	esd_work;
+	unsigned long		last_valid_interrupt;
+
+	unsigned int		x_plate_ohm;
+
+	bool			opened;
+	bool			suspended;
+
+	bool			pen_down;
+
+	void			(*set_reset)(bool enable);
+};
+
+static int tsc2005_cmd(struct tsc2005 *ts, u8 cmd)
+{
+	u8 tx = TSC2005_CMD | TSC2005_CMD_12BIT | cmd;
+	struct spi_transfer xfer = {
+		.tx_buf		= &tx,
+		.len		= 1,
+		.bits_per_word	= 8,
+	};
+	struct spi_message msg;
+	int error;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error) {
+		dev_err(&ts->spi->dev, "%s: failed, command: %x, error: %d\n",
+			__func__, cmd, error);
+		return error;
+	}
+
+	return 0;
+}
+
+static int tsc2005_write(struct tsc2005 *ts, u8 reg, u16 value)
+{
+	u32 tx = ((reg | TSC2005_REG_PND0) << 16) | value;
+	struct spi_transfer xfer = {
+		.tx_buf		= &tx,
+		.len		= 4,
+		.bits_per_word	= 24,
+	};
+	struct spi_message msg;
+	int error;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error) {
+		dev_err(&ts->spi->dev,
+			"%s: failed, register: %x, value: %x, error: %d\n",
+			__func__, reg, value, error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void tsc2005_setup_read(struct tsc2005_spi_rd *rd, u8 reg, bool last)
+{
+	memset(rd, 0, sizeof(*rd));
+
+	rd->spi_tx		   = (reg | TSC2005_REG_READ) << 16;
+	rd->spi_xfer.tx_buf	   = &rd->spi_tx;
+	rd->spi_xfer.rx_buf	   = &rd->spi_rx;
+	rd->spi_xfer.len	   = 4;
+	rd->spi_xfer.bits_per_word = 24;
+	rd->spi_xfer.cs_change	   = !last;
+}
+
+static int tsc2005_read(struct tsc2005 *ts, u8 reg, u16 *value)
+{
+	struct tsc2005_spi_rd spi_rd;
+	struct spi_message msg;
+	int error;
+
+	tsc2005_setup_read(&spi_rd, reg, true);
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&spi_rd.spi_xfer, &msg);
+
+	error = spi_sync(ts->spi, &msg);
+	if (error)
+		return error;
+
+	*value = spi_rd.spi_rx;
+	return 0;
+}
+
+static void tsc2005_update_pen_state(struct tsc2005 *ts,
+				     int x, int y, int pressure)
+{
+	if (pressure) {
+		input_report_abs(ts->idev, ABS_X, x);
+		input_report_abs(ts->idev, ABS_Y, y);
+		input_report_abs(ts->idev, ABS_PRESSURE, pressure);
+		if (!ts->pen_down) {
+			input_report_key(ts->idev, BTN_TOUCH, !!pressure);
+			ts->pen_down = true;
+		}
+	} else {
+		input_report_abs(ts->idev, ABS_PRESSURE, 0);
+		if (ts->pen_down) {
+			input_report_key(ts->idev, BTN_TOUCH, 0);
+			ts->pen_down = false;
+		}
+	}
+	input_sync(ts->idev);
+	dev_dbg(&ts->spi->dev, "point(%4d,%4d), pressure (%4d)\n", x, y,
+		pressure);
+}
+
+static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
+{
+	struct tsc2005 *ts = _ts;
+	unsigned long flags;
+	unsigned int pressure;
+	u32 x, y;
+	u32 z1, z2;
+	int error;
+
+	/* read the coordinates */
+	error = spi_sync(ts->spi, &ts->spi_read_msg);
+	if (unlikely(error))
+		goto out;
+
+	x = ts->spi_x.spi_rx;
+	y = ts->spi_y.spi_rx;
+	z1 = ts->spi_z1.spi_rx;
+	z2 = ts->spi_z2.spi_rx;
+
+	/* validate position */
+	if (unlikely(x > MAX_12BIT || y > MAX_12BIT))
+		goto out;
+
+	/* Skip reading if the pressure components are out of range */
+	if (unlikely(z1 == 0 || z2 > MAX_12BIT || z1 >= z2))
+		goto out;
+
+       /*
+	* Skip point if this is a pen down with the exact same values as
+	* the value before pen-up - that implies SPI fed us stale data
+	*/
+	if (!ts->pen_down &&
+	    ts->in_x == x && ts->in_y == y &&
+	    ts->in_z1 == z1 && ts->in_z2 == z2) {
+		goto out;
+	}
+
+	/*
+	 * At this point we are happy we have a valid and useful reading.
+	 * Remember it for later comparisons. We may now begin downsampling.
+	 */
+	ts->in_x = x;
+	ts->in_y = y;
+	ts->in_z1 = z1;
+	ts->in_z2 = z2;
+
+	/* Compute touch pressure resistance using equation #1 */
+	pressure = x * (z2 - z1) / z1;
+	pressure = pressure * ts->x_plate_ohm / 4096;
+	if (unlikely(pressure > MAX_12BIT))
+		goto out;
+
+	spin_lock_irqsave(&ts->lock, flags);
+
+	tsc2005_update_pen_state(ts, x, y, pressure);
+	mod_timer(&ts->penup_timer,
+		  jiffies + msecs_to_jiffies(TSC2005_PENUP_TIME_MS));
+
+	spin_unlock_irqrestore(&ts->lock, flags);
+
+	ts->last_valid_interrupt = jiffies;
+out:
+	return IRQ_HANDLED;
+}
+
+static void tsc2005_penup_timer(unsigned long data)
+{
+	struct tsc2005 *ts = (struct tsc2005 *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ts->lock, flags);
+	tsc2005_update_pen_state(ts, 0, 0, 0);
+	spin_unlock_irqrestore(&ts->lock, flags);
+}
+
+static void tsc2005_start_scan(struct tsc2005 *ts)
+{
+	tsc2005_write(ts, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
+	tsc2005_write(ts, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
+	tsc2005_write(ts, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
+	tsc2005_cmd(ts, TSC2005_CMD_NORMAL);
+}
+
+static void tsc2005_stop_scan(struct tsc2005 *ts)
+{
+	tsc2005_cmd(ts, TSC2005_CMD_STOP);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_disable(struct tsc2005 *ts)
+{
+	tsc2005_stop_scan(ts);
+
+	disable_irq(ts->spi->irq);
+	del_timer_sync(&ts->penup_timer);
+
+	cancel_delayed_work_sync(&ts->esd_work);
+
+	enable_irq(ts->spi->irq);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_enable(struct tsc2005 *ts)
+{
+	tsc2005_start_scan(ts);
+
+	if (ts->esd_timeout && ts->set_reset) {
+		ts->last_valid_interrupt = jiffies;
+		schedule_delayed_work(&ts->esd_work,
+				round_jiffies(jiffies +
+					msecs_to_jiffies(ts->esd_timeout)));
+	}
+
+}
+
+static ssize_t tsc2005_selftest_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+	u16 temp_high;
+	u16 temp_high_orig;
+	u16 temp_high_test;
+	bool success = true;
+	int error;
+
+	mutex_lock(&ts->mutex);
+
+	/*
+	 * Test TSC2005 communications via temp high register.
+	 */
+	__tsc2005_disable(ts);
+
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d\n", error);
+		success = false;
+		goto out;
+	}
+
+	temp_high_test = (temp_high_orig - 1) & MAX_12BIT;
+
+	error = tsc2005_write(ts, TSC2005_REG_TEMP_HIGH, temp_high_test);
+	if (error) {
+		dev_warn(dev, "selftest failed: write error %d\n", error);
+		success = false;
+		goto out;
+	}
+
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d after write\n",
+			 error);
+		success = false;
+		goto out;
+	}
+
+	if (temp_high != temp_high_test) {
+		dev_warn(dev, "selftest failed: %d != %d\n",
+			 temp_high, temp_high_test);
+		success = false;
+	}
+
+	/* hardware reset */
+	ts->set_reset(false);
+	usleep_range(100, 500); /* only 10us required */
+	ts->set_reset(true);
+
+	if (!success)
+		goto out;
+
+	/* test that the reset really happened */
+	error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+	if (error) {
+		dev_warn(dev, "selftest failed: read error %d after reset\n",
+			 error);
+		success = false;
+		goto out;
+	}
+
+	if (temp_high != temp_high_orig) {
+		dev_warn(dev, "selftest failed after reset: %d != %d\n",
+			 temp_high, temp_high_orig);
+		success = false;
+	}
+
+out:
+	__tsc2005_enable(ts);
+	mutex_unlock(&ts->mutex);
+
+	return sprintf(buf, "%d\n", success);
+}
+
+static DEVICE_ATTR(selftest, S_IRUGO, tsc2005_selftest_show, NULL);
+
+static struct attribute *tsc2005_attrs[] = {
+	&dev_attr_selftest.attr,
+	NULL
+};
+
+static mode_t tsc2005_attr_is_visible(struct kobject *kobj,
+				      struct attribute *attr, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+	mode_t mode = attr->mode;
+
+	if (attr == &dev_attr_selftest.attr) {
+		if (!ts->set_reset)
+			mode = 0;
+	}
+
+	return mode;
+}
+
+static const struct attribute_group tsc2005_attr_group = {
+	.is_visible	= tsc2005_attr_is_visible,
+	.attrs		= tsc2005_attrs,
+};
+
+static void tsc2005_esd_work(struct work_struct *work)
+{
+	struct tsc2005 *ts = container_of(work, struct tsc2005, esd_work.work);
+	int error;
+	u16 r;
+
+	mutex_lock(&ts->mutex);
+
+	if (time_is_after_jiffies(ts->last_valid_interrupt +
+				  msecs_to_jiffies(ts->esd_timeout)))
+		goto out;
+
+	/* We should be able to read register without disabling interrupts. */
+	error = tsc2005_read(ts, TSC2005_REG_CFR0, &r);
+	if (!error &&
+	    !((r ^ TSC2005_CFR0_INITVALUE) & TSC2005_CFR0_RW_MASK)) {
+		goto out;
+	}
+
+	/*
+	 * If we could not read our known value from configuration register 0
+	 * then we should reset the controller as if from power-up and start
+	 * scanning again.
+	 */
+	dev_info(&ts->spi->dev, "TSC2005 not responding - resetting\n");
+
+	disable_irq(ts->spi->irq);
+	del_timer_sync(&ts->penup_timer);
+
+	tsc2005_update_pen_state(ts, 0, 0, 0);
+
+	ts->set_reset(false);
+	usleep_range(100, 500); /* only 10us required */
+	ts->set_reset(true);
+
+	enable_irq(ts->spi->irq);
+	tsc2005_start_scan(ts);
+
+out:
+	/* re-arm the watchdog */
+	schedule_delayed_work(&ts->esd_work,
+			      round_jiffies(jiffies +
+					msecs_to_jiffies(ts->esd_timeout)));
+	mutex_unlock(&ts->mutex);
+}
+
+static int tsc2005_open(struct input_dev *input)
+{
+	struct tsc2005 *ts = input_get_drvdata(input);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended)
+		__tsc2005_enable(ts);
+
+	ts->opened = true;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+
+static void tsc2005_close(struct input_dev *input)
+{
+	struct tsc2005 *ts = input_get_drvdata(input);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended)
+		__tsc2005_disable(ts);
+
+	ts->opened = false;
+
+	mutex_unlock(&ts->mutex);
+}
+
+static void __devinit tsc2005_setup_spi_xfer(struct tsc2005 *ts)
+{
+	tsc2005_setup_read(&ts->spi_x, TSC2005_REG_X, false);
+	tsc2005_setup_read(&ts->spi_y, TSC2005_REG_Y, false);
+	tsc2005_setup_read(&ts->spi_z1, TSC2005_REG_Z1, false);
+	tsc2005_setup_read(&ts->spi_z2, TSC2005_REG_Z2, true);
+
+	spi_message_init(&ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_x.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_y.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_z1.spi_xfer, &ts->spi_read_msg);
+	spi_message_add_tail(&ts->spi_z2.spi_xfer, &ts->spi_read_msg);
+}
+
+static int __devinit tsc2005_probe(struct spi_device *spi)
+{
+	const struct tsc2005_platform_data *pdata = spi->dev.platform_data;
+	struct tsc2005 *ts;
+	struct input_dev *input_dev;
+	unsigned int max_x, max_y, max_p;
+	unsigned int fudge_x, fudge_y, fudge_p;
+	int error;
+
+	if (!pdata) {
+		dev_dbg(&spi->dev, "no platform data\n");
+		return -ENODEV;
+	}
+
+	fudge_x	= pdata->ts_x_fudge	   ? : 4;
+	fudge_y	= pdata->ts_y_fudge	   ? : 8;
+	fudge_p	= pdata->ts_pressure_fudge ? : 2;
+	max_x	= pdata->ts_x_max	   ? : MAX_12BIT;
+	max_y	= pdata->ts_y_max	   ? : MAX_12BIT;
+	max_p	= pdata->ts_pressure_max   ? : MAX_12BIT;
+
+	if (spi->irq <= 0) {
+		dev_dbg(&spi->dev, "no irq\n");
+		return -ENODEV;
+	}
+
+	spi->mode = SPI_MODE_0;
+	spi->bits_per_word = 8;
+	if (!spi->max_speed_hz)
+		spi->max_speed_hz = TSC2005_SPI_MAX_SPEED_HZ;
+
+	error = spi_setup(spi);
+	if (error)
+		return error;
+
+	ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ts || !input_dev) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	ts->spi = spi;
+	ts->idev = input_dev;
+
+	ts->x_plate_ohm	= pdata->ts_x_plate_ohm	? : 280;
+	ts->esd_timeout	= pdata->esd_timeout_ms;
+	ts->set_reset	= pdata->set_reset;
+
+	mutex_init(&ts->mutex);
+
+	spin_lock_init(&ts->lock);
+	setup_timer(&ts->penup_timer, tsc2005_penup_timer, (unsigned long)ts);
+
+	INIT_DELAYED_WORK(&ts->esd_work, tsc2005_esd_work);
+
+	tsc2005_setup_spi_xfer(ts);
+
+	snprintf(ts->phys, sizeof(ts->phys),
+		 "%s/input-ts", dev_name(&spi->dev));
+
+	input_dev->name = "TSC2005 touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->id.bustype = BUS_SPI;
+	input_dev->dev.parent = &spi->dev;
+	input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
+	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+	input_set_abs_params(input_dev, ABS_X, 0, max_x, fudge_x, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, max_y, fudge_y, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
+
+	input_dev->open = tsc2005_open;
+	input_dev->close = tsc2005_close;
+
+	input_set_drvdata(input_dev, ts);
+
+	/* Ensure the touchscreen is off */
+	tsc2005_stop_scan(ts);
+
+	error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread,
+				     IRQF_TRIGGER_RISING, "tsc2005", ts);
+	if (error) {
+		dev_err(&spi->dev, "Failed to request irq, err: %d\n", error);
+		goto err_free_mem;
+	}
+
+	spi_set_drvdata(spi, ts);
+	error = sysfs_create_group(&spi->dev.kobj, &tsc2005_attr_group);
+	if (error) {
+		dev_err(&spi->dev,
+			"Failed to create sysfs attributes, err: %d\n", error);
+		goto err_clear_drvdata;
+	}
+
+	error = input_register_device(ts->idev);
+	if (error) {
+		dev_err(&spi->dev,
+			"Failed to register input device, err: %d\n", error);
+		goto err_remove_sysfs;
+	}
+
+	set_irq_wake(spi->irq, 1);
+	return 0;
+
+err_remove_sysfs:
+	sysfs_remove_group(&spi->dev.kobj, &tsc2005_attr_group);
+err_clear_drvdata:
+	spi_set_drvdata(spi, NULL);
+	free_irq(spi->irq, ts);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(ts);
+	return error;
+}
+
+static int __devexit tsc2005_remove(struct spi_device *spi)
+{
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	sysfs_remove_group(&ts->spi->dev.kobj, &tsc2005_attr_group);
+
+	free_irq(ts->spi->irq, ts);
+	input_unregister_device(ts->idev);
+	kfree(ts);
+
+	spi_set_drvdata(spi, NULL);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tsc2005_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	mutex_lock(&ts->mutex);
+
+	if (!ts->suspended && ts->opened)
+		__tsc2005_disable(ts);
+
+	ts->suspended = true;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+
+static int tsc2005_resume(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct tsc2005 *ts = spi_get_drvdata(spi);
+
+	mutex_lock(&ts->mutex);
+
+	if (ts->suspended && ts->opened)
+		__tsc2005_enable(ts);
+
+	ts->suspended = false;
+
+	mutex_unlock(&ts->mutex);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tsc2005_pm_ops, tsc2005_suspend, tsc2005_resume);
+
+static struct spi_driver tsc2005_driver = {
+	.driver	= {
+		.name	= "tsc2005",
+		.owner	= THIS_MODULE,
+		.pm	= &tsc2005_pm_ops,
+	},
+	.probe	= tsc2005_probe,
+	.remove	= __devexit_p(tsc2005_remove),
+};
+
+static int __init tsc2005_init(void)
+{
+	return spi_register_driver(&tsc2005_driver);
+}
+module_init(tsc2005_init);
+
+static void __exit tsc2005_exit(void)
+{
+	spi_unregister_driver(&tsc2005_driver);
+}
+module_exit(tsc2005_exit);
+
+MODULE_AUTHOR("Lauri Leukkunen <lauri.leukkunen@nokia.com>");
+MODULE_DESCRIPTION("TSC2005 Touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
new file mode 100644
index 00000000000..6ae054f8e0a
--- /dev/null
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -0,0 +1,368 @@
+/*
+ * Touchscreen driver for WM831x PMICs
+ *
+ * Copyright 2011 Wolfson Microelectronics plc.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/pm.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/irq.h>
+#include <linux/mfd/wm831x/pdata.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+/*
+ * R16424 (0x4028) - Touch Control 1
+ */
+#define WM831X_TCH_ENA                          0x8000  /* TCH_ENA */
+#define WM831X_TCH_CVT_ENA                      0x4000  /* TCH_CVT_ENA */
+#define WM831X_TCH_SLPENA                       0x1000  /* TCH_SLPENA */
+#define WM831X_TCH_Z_ENA                        0x0400  /* TCH_Z_ENA */
+#define WM831X_TCH_Y_ENA                        0x0200  /* TCH_Y_ENA */
+#define WM831X_TCH_X_ENA                        0x0100  /* TCH_X_ENA */
+#define WM831X_TCH_DELAY_MASK                   0x00E0  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_SHIFT                       5  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_WIDTH                       3  /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_RATE_MASK                    0x001F  /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_SHIFT                        0  /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_WIDTH                        5  /* TCH_RATE - [4:0] */
+
+/*
+ * R16425 (0x4029) - Touch Control 2
+ */
+#define WM831X_TCH_PD_WK                        0x2000  /* TCH_PD_WK */
+#define WM831X_TCH_5WIRE                        0x1000  /* TCH_5WIRE */
+#define WM831X_TCH_PDONLY                       0x0800  /* TCH_PDONLY */
+#define WM831X_TCH_ISEL                         0x0100  /* TCH_ISEL */
+#define WM831X_TCH_RPU_MASK                     0x000F  /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_SHIFT                         0  /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_WIDTH                         4  /* TCH_RPU - [3:0] */
+
+/*
+ * R16426-8 (0x402A-C) - Touch Data X/Y/X
+ */
+#define WM831X_TCH_PD                           0x8000  /* TCH_PD1 */
+#define WM831X_TCH_DATA_MASK                    0x0FFF  /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_SHIFT                        0  /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_WIDTH                       12  /* TCH_DATA - [11:0] */
+
+struct wm831x_ts {
+	struct input_dev *input_dev;
+	struct wm831x *wm831x;
+	unsigned int data_irq;
+	unsigned int pd_irq;
+	bool pressure;
+	bool pen_down;
+};
+
+static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data)
+{
+	struct wm831x_ts *wm831x_ts = irq_data;
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+	static int data_types[] = { ABS_X, ABS_Y, ABS_PRESSURE };
+	u16 data[3];
+	int count;
+	int i, ret;
+
+	if (wm831x_ts->pressure)
+		count = 3;
+	else
+		count = 2;
+
+	wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+			WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+	ret = wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count,
+			       data);
+	if (ret != 0) {
+		dev_err(wm831x->dev, "Failed to read touch data: %d\n",
+			ret);
+		return IRQ_NONE;
+	}
+
+	/*
+	 * We get a pen down reading on every reading, report pen up if any
+	 * individual reading does so.
+	 */
+	wm831x_ts->pen_down = true;
+	for (i = 0; i < count; i++) {
+		if (!(data[i] & WM831X_TCH_PD)) {
+			wm831x_ts->pen_down = false;
+			continue;
+		}
+		input_report_abs(wm831x_ts->input_dev, data_types[i],
+				 data[i] & WM831X_TCH_DATA_MASK);
+	}
+
+	if (!wm831x_ts->pen_down) {
+		disable_irq_nosync(wm831x_ts->data_irq);
+
+		/* Don't need data any more */
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+				WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+				WM831X_TCH_Z_ENA, 0);
+
+		/* Flush any final samples that arrived while reading */
+		wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+				WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+		wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count, data);
+
+		if (wm831x_ts->pressure)
+			input_report_abs(wm831x_ts->input_dev,
+					 ABS_PRESSURE, 0);
+
+		input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 0);
+	}
+
+	input_sync(wm831x_ts->input_dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data)
+{
+	struct wm831x_ts *wm831x_ts = irq_data;
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+	int ena = 0;
+
+	/* Start collecting data */
+	if (wm831x_ts->pressure)
+		ena |= WM831X_TCH_Z_ENA;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA,
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | ena);
+
+	input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 1);
+	input_sync(wm831x_ts->input_dev);
+
+	wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+			WM831X_TCHPD_EINT, WM831X_TCHPD_EINT);
+
+	wm831x_ts->pen_down = true;
+	enable_irq(wm831x_ts->data_irq);
+
+	return IRQ_HANDLED;
+}
+
+static int wm831x_ts_input_open(struct input_dev *idev)
+{
+	struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_ENA | WM831X_TCH_CVT_ENA |
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+			WM831X_TCH_Z_ENA, WM831X_TCH_ENA);
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_CVT_ENA, WM831X_TCH_CVT_ENA);
+
+	return 0;
+}
+
+static void wm831x_ts_input_close(struct input_dev *idev)
+{
+	struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+	struct wm831x *wm831x = wm831x_ts->wm831x;
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_ENA | WM831X_TCH_CVT_ENA |
+			WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+			WM831X_TCH_Z_ENA, 0);
+
+	if (wm831x_ts->pen_down)
+		disable_irq(wm831x_ts->data_irq);
+}
+
+static __devinit int wm831x_ts_probe(struct platform_device *pdev)
+{
+	struct wm831x_ts *wm831x_ts;
+	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+	struct wm831x_pdata *core_pdata = dev_get_platdata(pdev->dev.parent);
+	struct wm831x_touch_pdata *pdata = NULL;
+	struct input_dev *input_dev;
+	int error;
+
+	if (core_pdata)
+		pdata = core_pdata->touch;
+
+	wm831x_ts = kzalloc(sizeof(struct wm831x_ts), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!wm831x_ts || !input_dev) {
+		error = -ENOMEM;
+		goto err_alloc;
+	}
+
+	wm831x_ts->wm831x = wm831x;
+	wm831x_ts->input_dev = input_dev;
+
+	/*
+	 * If we have a direct IRQ use it, otherwise use the interrupt
+	 * from the WM831x IRQ controller.
+	 */
+	if (pdata && pdata->data_irq)
+		wm831x_ts->data_irq = pdata->data_irq;
+	else
+		wm831x_ts->data_irq = platform_get_irq_byname(pdev, "TCHDATA");
+
+	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;
+	else
+		wm831x_ts->pressure = true;
+
+	/* Five wire touchscreens can't report pressure */
+	if (pdata && pdata->fivewire) {
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+				WM831X_TCH_5WIRE, WM831X_TCH_5WIRE);
+
+		/* Pressure measurements are not possible for five wire mode */
+		WARN_ON(pdata->pressure && pdata->fivewire);
+		wm831x_ts->pressure = false;
+	} else {
+		wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+				WM831X_TCH_5WIRE, 0);
+	}
+
+	if (pdata) {
+		switch (pdata->isel) {
+		default:
+			dev_err(&pdev->dev, "Unsupported ISEL setting: %d\n",
+				pdata->isel);
+			/* Fall through */
+		case 200:
+		case 0:
+			wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+					WM831X_TCH_ISEL, 0);
+			break;
+		case 400:
+			wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+					WM831X_TCH_ISEL, WM831X_TCH_ISEL);
+			break;
+		}
+	}
+
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+			WM831X_TCH_PDONLY, 0);
+
+	/* Default to 96 samples/sec */
+	wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+			WM831X_TCH_RATE_MASK, 6);
+
+	error = request_threaded_irq(wm831x_ts->data_irq,
+				     NULL, wm831x_ts_data_irq,
+				     IRQF_ONESHOT,
+				     "Touchscreen data", wm831x_ts);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to request data IRQ %d: %d\n",
+			wm831x_ts->data_irq, error);
+		goto err_alloc;
+	}
+	disable_irq(wm831x_ts->data_irq);
+
+	error = request_threaded_irq(wm831x_ts->pd_irq,
+				     NULL, wm831x_ts_pen_down_irq,
+				     IRQF_ONESHOT,
+				     "Touchscreen pen down", wm831x_ts);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to request pen down IRQ %d: %d\n",
+			wm831x_ts->pd_irq, error);
+		goto err_data_irq;
+	}
+
+	/* set up touch configuration */
+	input_dev->name = "WM831x touchscreen";
+	input_dev->phys = "wm831x";
+	input_dev->open = wm831x_ts_input_open;
+	input_dev->close = wm831x_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, 4095, 5, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, 4095, 5, 0);
+	if (wm831x_ts->pressure)
+		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 4095, 5, 0);
+
+	input_set_drvdata(input_dev, wm831x_ts);
+	input_dev->dev.parent = &pdev->dev;
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_pd_irq;
+
+	platform_set_drvdata(pdev, wm831x_ts);
+	return 0;
+
+err_pd_irq:
+	free_irq(wm831x_ts->pd_irq, wm831x_ts);
+err_data_irq:
+	free_irq(wm831x_ts->data_irq, wm831x_ts);
+err_alloc:
+	input_free_device(input_dev);
+	kfree(wm831x_ts);
+
+	return error;
+}
+
+static __devexit int wm831x_ts_remove(struct platform_device *pdev)
+{
+	struct wm831x_ts *wm831x_ts = platform_get_drvdata(pdev);
+
+	free_irq(wm831x_ts->pd_irq, wm831x_ts);
+	free_irq(wm831x_ts->data_irq, wm831x_ts);
+	input_unregister_device(wm831x_ts->input_dev);
+	kfree(wm831x_ts);
+
+	platform_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+static struct platform_driver wm831x_ts_driver = {
+	.driver = {
+		.name = "wm831x-touch",
+		.owner = THIS_MODULE,
+	},
+	.probe = wm831x_ts_probe,
+	.remove = __devexit_p(wm831x_ts_remove),
+};
+
+static int __init wm831x_ts_init(void)
+{
+	return platform_driver_register(&wm831x_ts_driver);
+}
+module_init(wm831x_ts_init);
+
+static void __exit wm831x_ts_exit(void)
+{
+	platform_driver_unregister(&wm831x_ts_driver);
+}
+module_exit(wm831x_ts_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM831x PMIC touchscreen driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-touch");