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

Pull input updates from Dmitry Torokhov:
 "The first round of updates for the input subsystem.

  Just new drivers and existing driver fixes, no core changes except for
  the new uinput IOCTL to allow userspace to fetch sysfs name of the
  input device that was created"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (43 commits)
  Input: edt-ft5x06 - add a missing condition
  Input: appletouch - fix jumps when additional fingers are detected
  Input: appletouch - implement sensor data smoothing
  Input: add driver for SOC button array
  Input: pm8xxx-vibrator - add DT match table
  Input: pmic8xxx-pwrkey - migrate to DT
  Input: pmic8xxx-keypad - migrate to DT
  Input: pmic8xxx-keypad - migrate to regmap APIs
  Input: pmic8xxx-keypad - migrate to devm_* APIs
  Input: pmic8xxx-keypad - fix build by removing gpio configuration
  Input: add new driver for ARM CLPS711X keypad
  Input: edt-ft5x06 - add support for M09 firmware version
  Input: edt-ft5x06 - ignore touchdown events
  Input: edt-ft5x06 - adjust delays to conform datasheet
  Input: edt-ft5x06 - add DT support
  Input: edt-ft5x06 - several cleanups; no functional change
  Input: appletouch - dial back fuzz setting
  Input: remove obsolete tnetv107x drivers
  Input: sirfsoc-onkey - set the capability of reporting KEY_POWER
  Input: da9052_onkey - use correct register bit for key status
  ...

5 files changed, 476 insertions, 532 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 07e9e82029d1..68edc9db2c64 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -514,15 +514,6 @@ config TOUCHSCREEN_MIGOR
 	  To compile this driver as a module, choose M here: the
 	  module will be called migor_ts.
 
-config TOUCHSCREEN_TNETV107X
-	tristate "TI TNETV107X touchscreen support"
-	depends on ARCH_DAVINCI_TNETV107X
-	help
-	  Say Y here if you want to use the TNETV107X touchscreen.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called tnetv107x-ts.
-
 config TOUCHSCREEN_TOUCHRIGHT
 	tristate "Touchright serial touchscreen"
 	select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 62801f213346..4bc954b7c7c3 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -56,7 +56,6 @@ obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
 obj-$(CONFIG_TOUCHSCREEN_SUR40)		+= sur40.o
 obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC)	+= ti_am335x_tsc.o
-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
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 412a85ec9ba5..f8815bebc9ef 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1,5 +1,7 @@
 /*
  * Copyright (C) 2012 Simon Budig, <simon.budig@kernelconcepts.de>
+ * Daniel Wagener <daniel.wagener@kernelconcepts.de> (M09 firmware support)
+ * Lothar Waßmann <LW@KARO-electronics.de> (DT support)
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -33,6 +35,7 @@
 #include <linux/debugfs.h>
 #include <linux/slab.h>
 #include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/input/mt.h>
 #include <linux/input/edt-ft5x06.h>
 
@@ -45,6 +48,14 @@
 #define WORK_REGISTER_NUM_X		0x33
 #define WORK_REGISTER_NUM_Y		0x34
 
+#define M09_REGISTER_THRESHOLD		0x80
+#define M09_REGISTER_GAIN		0x92
+#define M09_REGISTER_OFFSET		0x93
+#define M09_REGISTER_NUM_X		0x94
+#define M09_REGISTER_NUM_Y		0x95
+
+#define NO_REGISTER			0xff
+
 #define WORK_REGISTER_OPMODE		0x3c
 #define FACTORY_REGISTER_OPMODE		0x01
 
@@ -59,12 +70,30 @@
 #define EDT_RAW_DATA_RETRIES		100
 #define EDT_RAW_DATA_DELAY		1 /* msec */
 
+enum edt_ver {
+	M06,
+	M09,
+};
+
+struct edt_reg_addr {
+	int reg_threshold;
+	int reg_report_rate;
+	int reg_gain;
+	int reg_offset;
+	int reg_num_x;
+	int reg_num_y;
+};
+
 struct edt_ft5x06_ts_data {
 	struct i2c_client *client;
 	struct input_dev *input;
 	u16 num_x;
 	u16 num_y;
 
+	int reset_pin;
+	int irq_pin;
+	int wake_pin;
+
 #if defined(CONFIG_DEBUG_FS)
 	struct dentry *debug_dir;
 	u8 *raw_buffer;
@@ -79,6 +108,9 @@ struct edt_ft5x06_ts_data {
 	int report_rate;
 
 	char name[EDT_NAME_LEN];
+
+	struct edt_reg_addr reg_addr;
+	enum edt_ver version;
 };
 
 static int edt_ft5x06_ts_readwrite(struct i2c_client *client,
@@ -136,33 +168,58 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
 {
 	struct edt_ft5x06_ts_data *tsdata = dev_id;
 	struct device *dev = &tsdata->client->dev;
-	u8 cmd = 0xf9;
-	u8 rdbuf[26];
+	u8 cmd;
+	u8 rdbuf[29];
 	int i, type, x, y, id;
+	int offset, tplen, datalen;
 	int error;
 
+	switch (tsdata->version) {
+	case M06:
+		cmd = 0xf9; /* tell the controller to send touch data */
+		offset = 5; /* where the actual touch data starts */
+		tplen = 4;  /* data comes in so called frames */
+		datalen = 26; /* how much bytes to listen for */
+		break;
+
+	case M09:
+		cmd = 0x02;
+		offset = 1;
+		tplen = 6;
+		datalen = 29;
+		break;
+
+	default:
+		goto out;
+	}
+
 	memset(rdbuf, 0, sizeof(rdbuf));
 
 	error = edt_ft5x06_ts_readwrite(tsdata->client,
 					sizeof(cmd), &cmd,
-					sizeof(rdbuf), rdbuf);
+					datalen, rdbuf);
 	if (error) {
 		dev_err_ratelimited(dev, "Unable to fetch data, error: %d\n",
 				    error);
 		goto out;
 	}
 
-	if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa || rdbuf[2] != 26) {
-		dev_err_ratelimited(dev, "Unexpected header: %02x%02x%02x!\n",
-				    rdbuf[0], rdbuf[1], rdbuf[2]);
-		goto out;
-	}
+	/* M09 does not send header or CRC */
+	if (tsdata->version == M06) {
+		if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa ||
+			rdbuf[2] != datalen) {
+			dev_err_ratelimited(dev,
+					"Unexpected header: %02x%02x%02x!\n",
+					rdbuf[0], rdbuf[1], rdbuf[2]);
+			goto out;
+		}
 
-	if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, 26))
-		goto out;
+		if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, datalen))
+			goto out;
+	}
 
 	for (i = 0; i < MAX_SUPPORT_POINTS; i++) {
-		u8 *buf = &rdbuf[i * 4 + 5];
+		u8 *buf = &rdbuf[i * tplen + offset];
 		bool down;
 
 		type = buf[0] >> 6;
@@ -170,10 +227,14 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
 		if (type == TOUCH_EVENT_RESERVED)
 			continue;
 
+		/* M06 sometimes sends bogus coordinates in TOUCH_DOWN */
+		if (tsdata->version == M06 && type == TOUCH_EVENT_DOWN)
+			continue;
+
 		x = ((buf[0] << 8) | buf[1]) & 0x0fff;
 		y = ((buf[2] << 8) | buf[3]) & 0x0fff;
 		id = (buf[2] >> 4) & 0x0f;
-		down = (type != TOUCH_EVENT_UP);
+		down = type != TOUCH_EVENT_UP;
 
 		input_mt_slot(tsdata->input, id);
 		input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, down);
@@ -197,12 +258,25 @@ static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,
 {
 	u8 wrbuf[4];
 
-	wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
-	wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
-	wrbuf[2] = value;
-	wrbuf[3] = wrbuf[0] ^ wrbuf[1] ^ wrbuf[2];
-
-	return edt_ft5x06_ts_readwrite(tsdata->client, 4, wrbuf, 0, NULL);
+	switch (tsdata->version) {
+	case M06:
+		wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
+		wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
+		wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
+		wrbuf[2] = value;
+		wrbuf[3] = wrbuf[0] ^ wrbuf[1] ^ wrbuf[2];
+		return edt_ft5x06_ts_readwrite(tsdata->client, 4,
+					wrbuf, 0, NULL);
+	case M09:
+		wrbuf[0] = addr;
+		wrbuf[1] = value;
+
+		return edt_ft5x06_ts_readwrite(tsdata->client, 3,
+					wrbuf, 0, NULL);
+
+	default:
+		return -EINVAL;
+	}
 }
 
 static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
@@ -211,19 +285,36 @@ static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
 	u8 wrbuf[2], rdbuf[2];
 	int error;
 
-	wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
-	wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
-	wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
+	switch (tsdata->version) {
+	case M06:
+		wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
+		wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
+		wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
 
-	error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2, rdbuf);
-	if (error)
-		return error;
+		error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2,
+						rdbuf);
+		if (error)
+			return error;
 
-	if ((wrbuf[0] ^ wrbuf[1] ^ rdbuf[0]) != rdbuf[1]) {
-		dev_err(&tsdata->client->dev,
-			"crc error: 0x%02x expected, got 0x%02x\n",
-			wrbuf[0] ^ wrbuf[1] ^ rdbuf[0], rdbuf[1]);
-		return -EIO;
+		if ((wrbuf[0] ^ wrbuf[1] ^ rdbuf[0]) != rdbuf[1]) {
+			dev_err(&tsdata->client->dev,
+				"crc error: 0x%02x expected, got 0x%02x\n",
+				wrbuf[0] ^ wrbuf[1] ^ rdbuf[0],
+				rdbuf[1]);
+			return -EIO;
+		}
+		break;
+
+	case M09:
+		wrbuf[0] = addr;
+		error = edt_ft5x06_ts_readwrite(tsdata->client, 1,
+						wrbuf, 1, rdbuf);
+		if (error)
+			return error;
+		break;
+
+	default:
+		return -EINVAL;
 	}
 
 	return rdbuf[0];
@@ -234,19 +325,21 @@ struct edt_ft5x06_attribute {
 	size_t field_offset;
 	u8 limit_low;
 	u8 limit_high;
-	u8 addr;
+	u8 addr_m06;
+	u8 addr_m09;
 };
 
-#define EDT_ATTR(_field, _mode, _addr, _limit_low, _limit_high)		\
+#define EDT_ATTR(_field, _mode, _addr_m06, _addr_m09,			\
+		_limit_low, _limit_high)				\
 	struct edt_ft5x06_attribute edt_ft5x06_attr_##_field = {	\
 		.dattr = __ATTR(_field, _mode,				\
 				edt_ft5x06_setting_show,		\
 				edt_ft5x06_setting_store),		\
-		.field_offset =						\
-			offsetof(struct edt_ft5x06_ts_data, _field),	\
+		.field_offset = offsetof(struct edt_ft5x06_ts_data, _field), \
+		.addr_m06 = _addr_m06,					\
+		.addr_m09 = _addr_m09,					\
 		.limit_low = _limit_low,				\
 		.limit_high = _limit_high,				\
-		.addr = _addr,						\
 	}
 
 static ssize_t edt_ft5x06_setting_show(struct device *dev,
@@ -257,10 +350,11 @@ static ssize_t edt_ft5x06_setting_show(struct device *dev,
 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 	struct edt_ft5x06_attribute *attr =
 			container_of(dattr, struct edt_ft5x06_attribute, dattr);
-	u8 *field = (u8 *)((char *)tsdata + attr->field_offset);
+	u8 *field = (u8 *)tsdata + attr->field_offset;
 	int val;
 	size_t count = 0;
 	int error = 0;
+	u8 addr;
 
 	mutex_lock(&tsdata->mutex);
 
@@ -269,15 +363,33 @@ static ssize_t edt_ft5x06_setting_show(struct device *dev,
 		goto out;
 	}
 
-	val = edt_ft5x06_register_read(tsdata, attr->addr);
-	if (val < 0) {
-		error = val;
-		dev_err(&tsdata->client->dev,
-			"Failed to fetch attribute %s, error %d\n",
-			dattr->attr.name, error);
+	switch (tsdata->version) {
+	case M06:
+		addr = attr->addr_m06;
+		break;
+
+	case M09:
+		addr = attr->addr_m09;
+		break;
+
+	default:
+		error = -ENODEV;
 		goto out;
 	}
 
+	if (addr != NO_REGISTER) {
+		val = edt_ft5x06_register_read(tsdata, addr);
+		if (val < 0) {
+			error = val;
+			dev_err(&tsdata->client->dev,
+				"Failed to fetch attribute %s, error %d\n",
+				dattr->attr.name, error);
+			goto out;
+		}
+	} else {
+		val = *field;
+	}
+
 	if (val != *field) {
 		dev_warn(&tsdata->client->dev,
 			 "%s: read (%d) and stored value (%d) differ\n",
@@ -299,9 +411,10 @@ static ssize_t edt_ft5x06_setting_store(struct device *dev,
 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 	struct edt_ft5x06_attribute *attr =
 			container_of(dattr, struct edt_ft5x06_attribute, dattr);
-	u8 *field = (u8 *)((char *)tsdata + attr->field_offset);
+	u8 *field = (u8 *)tsdata + attr->field_offset;
 	unsigned int val;
 	int error;
+	u8 addr;
 
 	mutex_lock(&tsdata->mutex);
 
@@ -319,14 +432,29 @@ static ssize_t edt_ft5x06_setting_store(struct device *dev,
 		goto out;
 	}
 
-	error = edt_ft5x06_register_write(tsdata, attr->addr, val);
-	if (error) {
-		dev_err(&tsdata->client->dev,
-			"Failed to update attribute %s, error: %d\n",
-			dattr->attr.name, error);
+	switch (tsdata->version) {
+	case M06:
+		addr = attr->addr_m06;
+		break;
+
+	case M09:
+		addr = attr->addr_m09;
+		break;
+
+	default:
+		error = -ENODEV;
 		goto out;
 	}
 
+	if (addr != NO_REGISTER) {
+		error = edt_ft5x06_register_write(tsdata, addr, val);
+		if (error) {
+			dev_err(&tsdata->client->dev,
+				"Failed to update attribute %s, error: %d\n",
+				dattr->attr.name, error);
+			goto out;
+		}
+	}
 	*field = val;
 
 out:
@@ -334,12 +462,14 @@ out:
 	return error ?: count;
 }
 
-static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN, 0, 31);
-static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET, 0, 31);
-static EDT_ATTR(threshold, S_IWUSR | S_IRUGO,
-		WORK_REGISTER_THRESHOLD, 20, 80);
-static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO,
-		WORK_REGISTER_REPORT_RATE, 3, 14);
+static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN,
+		M09_REGISTER_GAIN, 0, 31);
+static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET,
+		M09_REGISTER_OFFSET, 0, 31);
+static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD,
+		M09_REGISTER_THRESHOLD, 20, 80);
+static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE,
+		NO_REGISTER, 3, 14);
 
 static struct attribute *edt_ft5x06_attrs[] = {
 	&edt_ft5x06_attr_gain.dattr.attr,
@@ -374,6 +504,9 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)
 	}
 
 	/* mode register is 0x3c when in the work mode */
+	if (tsdata->version == M09)
+		goto m09_out;
+
 	error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);
 	if (error) {
 		dev_err(&client->dev,
@@ -406,12 +539,18 @@ err_out:
 	enable_irq(client->irq);
 
 	return error;
+
+m09_out:
+	dev_err(&client->dev, "No factory mode support for M09\n");
+	return -EINVAL;
+
 }
 
 static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
 {
 	struct i2c_client *client = tsdata->client;
 	int retries = EDT_SWITCH_MODE_RETRIES;
+	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
 	int ret;
 	int error;
 
@@ -444,13 +583,14 @@ static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
 	tsdata->raw_buffer = NULL;
 
 	/* restore parameters */
-	edt_ft5x06_register_write(tsdata, WORK_REGISTER_THRESHOLD,
+	edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold,
 				  tsdata->threshold);
-	edt_ft5x06_register_write(tsdata, WORK_REGISTER_GAIN,
+	edt_ft5x06_register_write(tsdata, reg_addr->reg_gain,
 				  tsdata->gain);
-	edt_ft5x06_register_write(tsdata, WORK_REGISTER_OFFSET,
+	edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,
 				  tsdata->offset);
-	edt_ft5x06_register_write(tsdata, WORK_REGISTER_REPORT_RATE,
+	if (reg_addr->reg_report_rate)
+		edt_ft5x06_register_write(tsdata, reg_addr->reg_report_rate,
 				  tsdata->report_rate);
 
 	enable_irq(client->irq);
@@ -479,7 +619,7 @@ static int edt_ft5x06_debugfs_mode_set(void *data, u64 mode)
 
 	if (mode != tsdata->factory_mode) {
 		retval = mode ? edt_ft5x06_factory_mode(tsdata) :
-			        edt_ft5x06_work_mode(tsdata);
+				edt_ft5x06_work_mode(tsdata);
 	}
 
 	mutex_unlock(&tsdata->mutex);
@@ -568,7 +708,6 @@ out:
 	return error ?: read;
 };
 
-
 static const struct file_operations debugfs_raw_data_fops = {
 	.open = simple_open,
 	.read = edt_ft5x06_debugfs_raw_data_read,
@@ -614,58 +753,100 @@ edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
 
 #endif /* CONFIG_DEBUGFS */
 
-
-
 static int edt_ft5x06_ts_reset(struct i2c_client *client,
-					 int reset_pin)
+			struct edt_ft5x06_ts_data *tsdata)
 {
 	int error;
 
-	if (gpio_is_valid(reset_pin)) {
+	if (gpio_is_valid(tsdata->wake_pin)) {
+		error = devm_gpio_request_one(&client->dev,
+					tsdata->wake_pin, GPIOF_OUT_INIT_LOW,
+					"edt-ft5x06 wake");
+		if (error) {
+			dev_err(&client->dev,
+				"Failed to request GPIO %d as wake pin, error %d\n",
+				tsdata->wake_pin, error);
+			return error;
+		}
+
+		msleep(5);
+		gpio_set_value(tsdata->wake_pin, 1);
+	}
+	if (gpio_is_valid(tsdata->reset_pin)) {
 		/* this pulls reset down, enabling the low active reset */
-		error = devm_gpio_request_one(&client->dev, reset_pin,
-					      GPIOF_OUT_INIT_LOW,
-					      "edt-ft5x06 reset");
+		error = devm_gpio_request_one(&client->dev,
+					tsdata->reset_pin, GPIOF_OUT_INIT_LOW,
+					"edt-ft5x06 reset");
 		if (error) {
 			dev_err(&client->dev,
 				"Failed to request GPIO %d as reset pin, error %d\n",
-				reset_pin, error);
+				tsdata->reset_pin, error);
 			return error;
 		}
 
-		mdelay(50);
-		gpio_set_value(reset_pin, 1);
-		mdelay(100);
+		msleep(5);
+		gpio_set_value(tsdata->reset_pin, 1);
+		msleep(300);
 	}
 
 	return 0;
 }
 
 static int edt_ft5x06_ts_identify(struct i2c_client *client,
-					    char *model_name,
-					    char *fw_version)
+					struct edt_ft5x06_ts_data *tsdata,
+					char *fw_version)
 {
 	u8 rdbuf[EDT_NAME_LEN];
 	char *p;
 	int error;
+	char *model_name = tsdata->name;
 
+	/* see what we find if we assume it is a M06 *
+	 * if we get less than EDT_NAME_LEN, we don't want
+	 * to have garbage in there
+	 */
+	memset(rdbuf, 0, sizeof(rdbuf));
 	error = edt_ft5x06_ts_readwrite(client, 1, "\xbb",
 					EDT_NAME_LEN - 1, rdbuf);
 	if (error)
 		return error;
 
-	/* remove last '$' end marker */
-	rdbuf[EDT_NAME_LEN - 1] = '\0';
-	if (rdbuf[EDT_NAME_LEN - 2] == '$')
-		rdbuf[EDT_NAME_LEN - 2] = '\0';
+	/* if we find something consistent, stay with that assumption
+	 * at least M09 won't send 3 bytes here
+	 */
+	if (!(strnicmp(rdbuf + 1, "EP0", 3))) {
+		tsdata->version = M06;
+
+		/* remove last '$' end marker */
+		rdbuf[EDT_NAME_LEN - 1] = '\0';
+		if (rdbuf[EDT_NAME_LEN - 2] == '$')
+			rdbuf[EDT_NAME_LEN - 2] = '\0';
+
+		/* look for Model/Version separator */
+		p = strchr(rdbuf, '*');
+		if (p)
+			*p++ = '\0';
+		strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
+		strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
+	} else {
+		/* since there are only two versions around (M06, M09) */
+		tsdata->version = M09;
+
+		error = edt_ft5x06_ts_readwrite(client, 1, "\xA6",
+						2, rdbuf);
+		if (error)
+			return error;
+
+		strlcpy(fw_version, rdbuf, 2);
 
-	/* look for Model/Version separator */
-	p = strchr(rdbuf, '*');
-	if (p)
-		*p++ = '\0';
+		error = edt_ft5x06_ts_readwrite(client, 1, "\xA8",
+						1, rdbuf);
+		if (error)
+			return error;
 
-	strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
-	strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
+		snprintf(model_name, EDT_NAME_LEN, "EP0%i%i0M09",
+			rdbuf[0] >> 4, rdbuf[0] & 0x0F);
+	}
 
 	return 0;
 }
@@ -675,33 +856,104 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
 	    pdata->name <= edt_ft5x06_attr_##name.limit_high)		\
 		edt_ft5x06_register_write(tsdata, reg, pdata->name)
 
+#define EDT_GET_PROP(name, reg) {				\
+	u32 val;						\
+	if (of_property_read_u32(np, #name, &val) == 0)		\
+		edt_ft5x06_register_write(tsdata, reg, val);	\
+}
+
+static void edt_ft5x06_ts_get_dt_defaults(struct device_node *np,
+					struct edt_ft5x06_ts_data *tsdata)
+{
+	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
+	EDT_GET_PROP(threshold, reg_addr->reg_threshold);
+	EDT_GET_PROP(gain, reg_addr->reg_gain);
+	EDT_GET_PROP(offset, reg_addr->reg_offset);
+}
+
 static void
 edt_ft5x06_ts_get_defaults(struct edt_ft5x06_ts_data *tsdata,
 			   const struct edt_ft5x06_platform_data *pdata)
 {
+	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
 	if (!pdata->use_parameters)
 		return;
 
 	/* pick up defaults from the platform data */
-	EDT_ATTR_CHECKSET(threshold, WORK_REGISTER_THRESHOLD);
-	EDT_ATTR_CHECKSET(gain, WORK_REGISTER_GAIN);
-	EDT_ATTR_CHECKSET(offset, WORK_REGISTER_OFFSET);
-	EDT_ATTR_CHECKSET(report_rate, WORK_REGISTER_REPORT_RATE);
+	EDT_ATTR_CHECKSET(threshold, reg_addr->reg_threshold);
+	EDT_ATTR_CHECKSET(gain, reg_addr->reg_gain);
+	EDT_ATTR_CHECKSET(offset, reg_addr->reg_offset);
+	if (reg_addr->reg_report_rate != NO_REGISTER)
+		EDT_ATTR_CHECKSET(report_rate, reg_addr->reg_report_rate);
 }
 
 static void
 edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
 {
+	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
 	tsdata->threshold = edt_ft5x06_register_read(tsdata,
-						     WORK_REGISTER_THRESHOLD);
-	tsdata->gain = edt_ft5x06_register_read(tsdata, WORK_REGISTER_GAIN);
-	tsdata->offset = edt_ft5x06_register_read(tsdata, WORK_REGISTER_OFFSET);
-	tsdata->report_rate = edt_ft5x06_register_read(tsdata,
-						WORK_REGISTER_REPORT_RATE);
-	tsdata->num_x = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_X);
-	tsdata->num_y = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_Y);
+						     reg_addr->reg_threshold);
+	tsdata->gain = edt_ft5x06_register_read(tsdata, reg_addr->reg_gain);
+	tsdata->offset = edt_ft5x06_register_read(tsdata, reg_addr->reg_offset);
+	if (reg_addr->reg_report_rate != NO_REGISTER)
+		tsdata->report_rate = edt_ft5x06_register_read(tsdata,
+						reg_addr->reg_report_rate);
+	tsdata->num_x = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_x);
+	tsdata->num_y = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_y);
+}
+
+static void
+edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
+{
+	struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
+	switch (tsdata->version) {
+	case M06:
+		reg_addr->reg_threshold = WORK_REGISTER_THRESHOLD;
+		reg_addr->reg_report_rate = WORK_REGISTER_REPORT_RATE;
+		reg_addr->reg_gain = WORK_REGISTER_GAIN;
+		reg_addr->reg_offset = WORK_REGISTER_OFFSET;
+		reg_addr->reg_num_x = WORK_REGISTER_NUM_X;
+		reg_addr->reg_num_y = WORK_REGISTER_NUM_Y;
+		break;
+
+	case M09:
+		reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
+		reg_addr->reg_gain = M09_REGISTER_GAIN;
+		reg_addr->reg_offset = M09_REGISTER_OFFSET;
+		reg_addr->reg_num_x = M09_REGISTER_NUM_X;
+		reg_addr->reg_num_y = M09_REGISTER_NUM_Y;
+		break;
+	}
 }
 
+#ifdef CONFIG_OF
+static int edt_ft5x06_i2c_ts_probe_dt(struct device *dev,
+				struct edt_ft5x06_ts_data *tsdata)
+{
+	struct device_node *np = dev->of_node;
+
+	/*
+	 * irq_pin is not needed for DT setup.
+	 * irq is associated via 'interrupts' property in DT
+	 */
+	tsdata->irq_pin = -EINVAL;
+	tsdata->reset_pin = of_get_named_gpio(np, "reset-gpios", 0);
+	tsdata->wake_pin = of_get_named_gpio(np, "wake-gpios", 0);
+
+	return 0;
+}
+#else
+static inline int edt_ft5x06_i2c_ts_probe_dt(struct device *dev,
+					struct edt_ft5x06_ts_data *tsdata)
+{
+	return -ENODEV;
+}
+#endif
+
 static int edt_ft5x06_ts_probe(struct i2c_client *client,
 					 const struct i2c_device_id *id)
 {
@@ -714,32 +966,40 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 
 	dev_dbg(&client->dev, "probing for EDT FT5x06 I2C\n");
 
+	tsdata = devm_kzalloc(&client->dev, sizeof(*tsdata), GFP_KERNEL);
+	if (!tsdata) {
+		dev_err(&client->dev, "failed to allocate driver data.\n");
+		return -ENOMEM;
+	}
+
 	if (!pdata) {
-		dev_err(&client->dev, "no platform data?\n");
-		return -EINVAL;
+		error = edt_ft5x06_i2c_ts_probe_dt(&client->dev, tsdata);
+		if (error) {
+			dev_err(&client->dev,
+				"DT probe failed and no platform data present\n");
+			return error;
+		}
+	} else {
+		tsdata->reset_pin = pdata->reset_pin;
+		tsdata->irq_pin = pdata->irq_pin;
+		tsdata->wake_pin = -EINVAL;
 	}
 
-	error = edt_ft5x06_ts_reset(client, pdata->reset_pin);
+	error = edt_ft5x06_ts_reset(client, tsdata);
 	if (error)
 		return error;
 
-	if (gpio_is_valid(pdata->irq_pin)) {
-		error = devm_gpio_request_one(&client->dev, pdata->irq_pin,
-					      GPIOF_IN, "edt-ft5x06 irq");
+	if (gpio_is_valid(tsdata->irq_pin)) {
+		error = devm_gpio_request_one(&client->dev, tsdata->irq_pin,
+					GPIOF_IN, "edt-ft5x06 irq");
 		if (error) {
 			dev_err(&client->dev,
 				"Failed to request GPIO %d, error %d\n",
-				pdata->irq_pin, error);
+				tsdata->irq_pin, error);
 			return error;
 		}
 	}
 
-	tsdata = devm_kzalloc(&client->dev, sizeof(*tsdata), GFP_KERNEL);
-	if (!tsdata) {
-		dev_err(&client->dev, "failed to allocate driver data.\n");
-		return -ENOMEM;
-	}
-
 	input = devm_input_allocate_device(&client->dev);
 	if (!input) {
 		dev_err(&client->dev, "failed to allocate input device.\n");
@@ -751,13 +1011,19 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 	tsdata->input = input;
 	tsdata->factory_mode = false;
 
-	error = edt_ft5x06_ts_identify(client, tsdata->name, fw_version);
+	error = edt_ft5x06_ts_identify(client, tsdata, fw_version);
 	if (error) {
 		dev_err(&client->dev, "touchscreen probe failed\n");
 		return error;
 	}
 
-	edt_ft5x06_ts_get_defaults(tsdata, pdata);
+	edt_ft5x06_ts_set_regs(tsdata);
+
+	if (!pdata)
+		edt_ft5x06_ts_get_dt_defaults(client->dev.of_node, tsdata);
+	else
+		edt_ft5x06_ts_get_defaults(tsdata, pdata);
+
 	edt_ft5x06_ts_get_parameters(tsdata);
 
 	dev_dbg(&client->dev,
@@ -787,10 +1053,10 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 	input_set_drvdata(input, tsdata);
 	i2c_set_clientdata(client, tsdata);
 
-	error = devm_request_threaded_irq(&client->dev, client->irq,
-					  NULL, edt_ft5x06_ts_isr,
-					  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					  client->name, tsdata);
+	error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+					edt_ft5x06_ts_isr,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					client->name, tsdata);
 	if (error) {
 		dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
 		return error;
@@ -801,19 +1067,21 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 		return error;
 
 	error = input_register_device(input);
-	if (error) {
-		sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
-		return error;
-	}
+	if (error)
+		goto err_remove_attrs;
 
 	edt_ft5x06_ts_prepare_debugfs(tsdata, dev_driver_string(&client->dev));
 	device_init_wakeup(&client->dev, 1);
 
 	dev_dbg(&client->dev,
-		"EDT FT5x06 initialized: IRQ pin %d, Reset pin %d.\n",
-		pdata->irq_pin, pdata->reset_pin);
+		"EDT FT5x06 initialized: IRQ %d, WAKE pin %d, Reset pin %d.\n",
+		client->irq, tsdata->wake_pin, tsdata->reset_pin);
 
 	return 0;
+
+err_remove_attrs:
+	sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
+	return error;
 }
 
 static int edt_ft5x06_ts_remove(struct i2c_client *client)
@@ -852,15 +1120,26 @@ static SIMPLE_DEV_PM_OPS(edt_ft5x06_ts_pm_ops,
 			 edt_ft5x06_ts_suspend, edt_ft5x06_ts_resume);
 
 static const struct i2c_device_id edt_ft5x06_ts_id[] = {
-	{ "edt-ft5x06", 0 },
-	{ }
+	{ "edt-ft5x06", 0, },
+	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id edt_ft5x06_of_match[] = {
+	{ .compatible = "edt,edt-ft5206", },
+	{ .compatible = "edt,edt-ft5306", },
+	{ .compatible = "edt,edt-ft5406", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match);
+#endif
+
 static struct i2c_driver edt_ft5x06_ts_driver = {
 	.driver = {
 		.owner = THIS_MODULE,
 		.name = "edt_ft5x06",
+		.of_match_table = of_match_ptr(edt_ft5x06_of_match),
 		.pm = &edt_ft5x06_ts_pm_ops,
 	},
 	.id_table = edt_ft5x06_ts_id,
diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c
deleted file mode 100644
index c47827a26e3c..000000000000
--- a/drivers/input/touchscreen/tnetv107x-ts.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * Texas Instruments TNETV107X Touchscreen Driver
- *
- * Copyright (C) 2010 Texas Instruments
- *
- * 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 version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/input.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-
-#include <mach/tnetv107x.h>
-
-#define TSC_PENUP_POLL		(HZ / 5)
-#define IDLE_TIMEOUT		100 /* msec */
-
-/*
- * The first and last samples of a touch interval are usually garbage and need
- * to be filtered out with these devices.  The following definitions control
- * the number of samples skipped.
- */
-#define TSC_HEAD_SKIP		1
-#define TSC_TAIL_SKIP		1
-#define TSC_SKIP		(TSC_HEAD_SKIP + TSC_TAIL_SKIP + 1)
-#define TSC_SAMPLES		(TSC_SKIP + 1)
-
-/* Register Offsets */
-struct tsc_regs {
-	u32	rev;
-	u32	tscm;
-	u32	bwcm;
-	u32	swc;
-	u32	adcchnl;
-	u32	adcdata;
-	u32	chval[4];
-};
-
-/* TSC Mode Configuration Register (tscm) bits */
-#define WMODE		BIT(0)
-#define TSKIND		BIT(1)
-#define ZMEASURE_EN	BIT(2)
-#define IDLE		BIT(3)
-#define TSC_EN		BIT(4)
-#define STOP		BIT(5)
-#define ONE_SHOT	BIT(6)
-#define SINGLE		BIT(7)
-#define AVG		BIT(8)
-#define AVGNUM(x)	(((x) & 0x03) <<  9)
-#define PVSTC(x)	(((x) & 0x07) << 11)
-#define PON		BIT(14)
-#define PONBG		BIT(15)
-#define AFERST		BIT(16)
-
-/* ADC DATA Capture Register bits */
-#define DATA_VALID	BIT(16)
-
-/* Register Access Macros */
-#define tsc_read(ts, reg)		__raw_readl(&(ts)->regs->reg)
-#define tsc_write(ts, reg, val)		__raw_writel(val, &(ts)->regs->reg);
-#define tsc_set_bits(ts, reg, val)	\
-	tsc_write(ts, reg, tsc_read(ts, reg) | (val))
-#define tsc_clr_bits(ts, reg, val)	\
-	tsc_write(ts, reg, tsc_read(ts, reg) & ~(val))
-
-struct sample {
-	int x, y, p;
-};
-
-struct tsc_data {
-	struct input_dev		*input_dev;
-	struct resource			*res;
-	struct tsc_regs __iomem		*regs;
-	struct timer_list		timer;
-	spinlock_t			lock;
-	struct clk			*clk;
-	struct device			*dev;
-	int				sample_count;
-	struct sample			samples[TSC_SAMPLES];
-	int				tsc_irq;
-};
-
-static int tsc_read_sample(struct tsc_data *ts, struct sample* sample)
-{
-	int	x, y, z1, z2, t, p = 0;
-	u32	val;
-
-	val = tsc_read(ts, chval[0]);
-	if (val & DATA_VALID)
-		x = val & 0xffff;
-	else
-		return -EINVAL;
-
-	y  = tsc_read(ts, chval[1]) & 0xffff;
-	z1 = tsc_read(ts, chval[2]) & 0xffff;
-	z2 = tsc_read(ts, chval[3]) & 0xffff;
-
-	if (z1) {
-		t = ((600 * x) * (z2 - z1));
-		p = t / (u32) (z1 << 12);
-		if (p < 0)
-			p = 0;
-	}
-
-	sample->x  = x;
-	sample->y  = y;
-	sample->p  = p;
-
-	return 0;
-}
-
-static void tsc_poll(unsigned long data)
-{
-	struct tsc_data *ts = (struct tsc_data *)data;
-	unsigned long flags;
-	int i, val, x, y, p;
-
-	spin_lock_irqsave(&ts->lock, flags);
-
-	if (ts->sample_count >= TSC_SKIP) {
-		input_report_abs(ts->input_dev, ABS_PRESSURE, 0);
-		input_report_key(ts->input_dev, BTN_TOUCH, 0);
-		input_sync(ts->input_dev);
-	} else if (ts->sample_count > 0) {
-		/*
-		 * A touch event lasted less than our skip count.  Salvage and
-		 * report anyway.
-		 */
-		for (i = 0, val = 0; i < ts->sample_count; i++)
-			val += ts->samples[i].x;
-		x = val / ts->sample_count;
-
-		for (i = 0, val = 0; i < ts->sample_count; i++)
-			val += ts->samples[i].y;
-		y = val / ts->sample_count;
-
-		for (i = 0, val = 0; i < ts->sample_count; i++)
-			val += ts->samples[i].p;
-		p = val / ts->sample_count;
-
-		input_report_abs(ts->input_dev, ABS_X, x);
-		input_report_abs(ts->input_dev, ABS_Y, y);
-		input_report_abs(ts->input_dev, ABS_PRESSURE, p);
-		input_report_key(ts->input_dev, BTN_TOUCH, 1);
-		input_sync(ts->input_dev);
-	}
-
-	ts->sample_count = 0;
-
-	spin_unlock_irqrestore(&ts->lock, flags);
-}
-
-static irqreturn_t tsc_irq(int irq, void *dev_id)
-{
-	struct tsc_data *ts = (struct tsc_data *)dev_id;
-	struct sample *sample;
-	int index;
-
-	spin_lock(&ts->lock);
-
-	index = ts->sample_count % TSC_SAMPLES;
-	sample = &ts->samples[index];
-	if (tsc_read_sample(ts, sample) < 0)
-		goto out;
-
-	if (++ts->sample_count >= TSC_SKIP) {
-		index = (ts->sample_count - TSC_TAIL_SKIP - 1) % TSC_SAMPLES;
-		sample = &ts->samples[index];
-
-		input_report_abs(ts->input_dev, ABS_X, sample->x);
-		input_report_abs(ts->input_dev, ABS_Y, sample->y);
-		input_report_abs(ts->input_dev, ABS_PRESSURE, sample->p);
-		if (ts->sample_count == TSC_SKIP)
-			input_report_key(ts->input_dev, BTN_TOUCH, 1);
-		input_sync(ts->input_dev);
-	}
-	mod_timer(&ts->timer, jiffies + TSC_PENUP_POLL);
-out:
-	spin_unlock(&ts->lock);
-	return IRQ_HANDLED;
-}
-
-static int tsc_start(struct input_dev *dev)
-{
-	struct tsc_data *ts = input_get_drvdata(dev);
-	unsigned long timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT);
-	u32 val;
-
-	clk_enable(ts->clk);
-
-	/* Go to idle mode, before any initialization */
-	while (time_after(timeout, jiffies)) {
-		if (tsc_read(ts, tscm) & IDLE)
-			break;
-	}
-
-	if (time_before(timeout, jiffies)) {
-		dev_warn(ts->dev, "timeout waiting for idle\n");
-		clk_disable(ts->clk);
-		return -EIO;
-	}
-
-	/* Configure TSC Control register*/
-	val = (PONBG | PON | PVSTC(4) | ONE_SHOT | ZMEASURE_EN);
-	tsc_write(ts, tscm, val);
-
-	/* Bring TSC out of reset: Clear AFE reset bit */
-	val &= ~(AFERST);
-	tsc_write(ts, tscm, val);
-
-	/* Configure all pins for hardware control*/
-	tsc_write(ts, bwcm, 0);
-
-	/* Finally enable the TSC */
-	tsc_set_bits(ts, tscm, TSC_EN);
-
-	return 0;
-}
-
-static void tsc_stop(struct input_dev *dev)
-{
-	struct tsc_data *ts = input_get_drvdata(dev);
-
-	tsc_clr_bits(ts, tscm, TSC_EN);
-	synchronize_irq(ts->tsc_irq);
-	del_timer_sync(&ts->timer);
-	clk_disable(ts->clk);
-}
-
-static int tsc_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct tsc_data *ts;
-	int error = 0;
-	u32 rev = 0;
-
-	ts = kzalloc(sizeof(struct tsc_data), GFP_KERNEL);
-	if (!ts) {
-		dev_err(dev, "cannot allocate device info\n");
-		return -ENOMEM;
-	}
-
-	ts->dev = dev;
-	spin_lock_init(&ts->lock);
-	setup_timer(&ts->timer, tsc_poll, (unsigned long)ts);
-	platform_set_drvdata(pdev, ts);
-
-	ts->tsc_irq = platform_get_irq(pdev, 0);
-	if (ts->tsc_irq < 0) {
-		dev_err(dev, "cannot determine device interrupt\n");
-		error = -ENODEV;
-		goto error_res;
-	}
-
-	ts->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!ts->res) {
-		dev_err(dev, "cannot determine register area\n");
-		error = -ENODEV;
-		goto error_res;
-	}
-
-	if (!request_mem_region(ts->res->start, resource_size(ts->res),
-				pdev->name)) {
-		dev_err(dev, "cannot claim register memory\n");
-		ts->res = NULL;
-		error = -EINVAL;
-		goto error_res;
-	}
-
-	ts->regs = ioremap(ts->res->start, resource_size(ts->res));
-	if (!ts->regs) {
-		dev_err(dev, "cannot map register memory\n");
-		error = -ENOMEM;
-		goto error_map;
-	}
-
-	ts->clk = clk_get(dev, NULL);
-	if (IS_ERR(ts->clk)) {
-		dev_err(dev, "cannot claim device clock\n");
-		error = PTR_ERR(ts->clk);
-		goto error_clk;
-	}
-
-	error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT,
-				     dev_name(dev), ts);
-	if (error < 0) {
-		dev_err(ts->dev, "Could not allocate ts irq\n");
-		goto error_irq;
-	}
-
-	ts->input_dev = input_allocate_device();
-	if (!ts->input_dev) {
-		dev_err(dev, "cannot allocate input device\n");
-		error = -ENOMEM;
-		goto error_input;
-	}
-	input_set_drvdata(ts->input_dev, ts);
-
-	ts->input_dev->name       = pdev->name;
-	ts->input_dev->id.bustype = BUS_HOST;
-	ts->input_dev->dev.parent = &pdev->dev;
-	ts->input_dev->open	  = tsc_start;
-	ts->input_dev->close	  = tsc_stop;
-
-	clk_enable(ts->clk);
-	rev = tsc_read(ts, rev);
-	ts->input_dev->id.product = ((rev >>  8) & 0x07);
-	ts->input_dev->id.version = ((rev >> 16) & 0xfff);
-	clk_disable(ts->clk);
-
-	__set_bit(EV_KEY,    ts->input_dev->evbit);
-	__set_bit(EV_ABS,    ts->input_dev->evbit);
-	__set_bit(BTN_TOUCH, ts->input_dev->keybit);
-
-	input_set_abs_params(ts->input_dev, ABS_X, 0, 0xffff, 5, 0);
-	input_set_abs_params(ts->input_dev, ABS_Y, 0, 0xffff, 5, 0);
-	input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 4095, 128, 0);
-
-	error = input_register_device(ts->input_dev);
-	if (error < 0) {
-		dev_err(dev, "failed input device registration\n");
-		goto error_reg;
-	}
-
-	return 0;
-
-error_reg:
-	input_free_device(ts->input_dev);
-error_input:
-	free_irq(ts->tsc_irq, ts);
-error_irq:
-	clk_put(ts->clk);
-error_clk:
-	iounmap(ts->regs);
-error_map:
-	release_mem_region(ts->res->start, resource_size(ts->res));
-error_res:
-	kfree(ts);
-
-	return error;
-}
-
-static int tsc_remove(struct platform_device *pdev)
-{
-	struct tsc_data *ts = platform_get_drvdata(pdev);
-
-	input_unregister_device(ts->input_dev);
-	free_irq(ts->tsc_irq, ts);
-	clk_put(ts->clk);
-	iounmap(ts->regs);
-	release_mem_region(ts->res->start, resource_size(ts->res));
-	kfree(ts);
-
-	return 0;
-}
-
-static struct platform_driver tsc_driver = {
-	.probe		= tsc_probe,
-	.remove		= tsc_remove,
-	.driver.name	= "tnetv107x-ts",
-	.driver.owner	= THIS_MODULE,
-};
-module_platform_driver(tsc_driver);
-
-MODULE_AUTHOR("Cyril Chemparathy");
-MODULE_DESCRIPTION("TNETV107X Touchscreen Driver");
-MODULE_ALIAS("platform:tnetv107x-ts");
-MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 2175f3419002..01d30cedde46 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -29,10 +29,13 @@
 #include <linux/sysfs.h>
 #include <linux/input/mt.h>
 #include <linux/platform_data/zforce_ts.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 
 #define WAIT_TIMEOUT		msecs_to_jiffies(1000)
 
 #define FRAME_START		0xee
+#define FRAME_MAXSIZE		257
 
 /* Offsets of the different parts of the payload the controller sends */
 #define PAYLOAD_HEADER		0
@@ -64,7 +67,7 @@
 #define RESPONSE_STATUS		0X1e
 
 /*
- * Notifications are send by the touch controller without
+ * Notifications are sent by the touch controller without
  * being requested by the driver and include for example
  * touch indications
  */
@@ -103,8 +106,8 @@ struct zforce_point {
  * @suspended		device suspended
  * @access_mutex	serialize i2c-access, to keep multipart reads together
  * @command_done	completion to wait for the command result
- * @command_mutex	serialize commands send to the ic
- * @command_waiting	the id of the command that that is currently waiting
+ * @command_mutex	serialize commands sent to the ic
+ * @command_waiting	the id of the command that is currently waiting
  *			for a result
  * @command_result	returned result of the command
  */
@@ -235,7 +238,8 @@ static int zforce_scan_frequency(struct zforce_ts *ts, u16 idle, u16 finger,
 			(finger & 0xff), ((finger >> 8) & 0xff),
 			(stylus & 0xff), ((stylus >> 8) & 0xff) };
 
-	dev_dbg(&client->dev, "set scan frequency to (idle: %d, finger: %d, stylus: %d)\n",
+	dev_dbg(&client->dev,
+		"set scan frequency to (idle: %d, finger: %d, stylus: %d)\n",
 		idle, finger, stylus);
 
 	return zforce_send_wait(ts, &buf[0], ARRAY_SIZE(buf));
@@ -255,7 +259,7 @@ static int zforce_setconfig(struct zforce_ts *ts, char b1)
 static int zforce_start(struct zforce_ts *ts)
 {
 	struct i2c_client *client = ts->client;
-	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	const struct zforce_ts_platdata *pdata = ts->pdata;
 	int ret;
 
 	dev_dbg(&client->dev, "starting device\n");
@@ -326,13 +330,14 @@ static int zforce_stop(struct zforce_ts *ts)
 static int zforce_touch_event(struct zforce_ts *ts, u8 *payload)
 {
 	struct i2c_client *client = ts->client;
-	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	const struct zforce_ts_platdata *pdata = ts->pdata;
 	struct zforce_point point;
 	int count, i, num = 0;
 
 	count = payload[0];
 	if (count > ZFORCE_REPORT_POINTS) {
-		dev_warn(&client->dev, "to many coordinates %d, expected max %d\n",
+		dev_warn(&client->dev,
+			 "too many coordinates %d, expected max %d\n",
 			 count, ZFORCE_REPORT_POINTS);
 		count = ZFORCE_REPORT_POINTS;
 	}
@@ -421,7 +426,7 @@ static int zforce_read_packet(struct zforce_ts *ts, u8 *buf)
 		goto unlock;
 	}
 
-	if (buf[PAYLOAD_LENGTH] <= 0 || buf[PAYLOAD_LENGTH] > 255) {
+	if (buf[PAYLOAD_LENGTH] == 0) {
 		dev_err(&client->dev, "invalid payload length: %d\n",
 			buf[PAYLOAD_LENGTH]);
 		ret = -EIO;
@@ -471,9 +476,9 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 {
 	struct zforce_ts *ts = dev_id;
 	struct i2c_client *client = ts->client;
-	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	const struct zforce_ts_platdata *pdata = ts->pdata;
 	int ret;
-	u8 payload_buffer[512];
+	u8 payload_buffer[FRAME_MAXSIZE];
 	u8 *payload;
 
 	/*
@@ -494,8 +499,8 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 	while (!gpio_get_value(pdata->gpio_int)) {
 		ret = zforce_read_packet(ts, payload_buffer);
 		if (ret < 0) {
-			dev_err(&client->dev, "could not read packet, ret: %d\n",
-				ret);
+			dev_err(&client->dev,
+				"could not read packet, ret: %d\n", ret);
 			break;
 		}
 
@@ -539,7 +544,8 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 						payload[RESPONSE_DATA + 4];
 			ts->version_rev   = (payload[RESPONSE_DATA + 7] << 8) |
 						payload[RESPONSE_DATA + 6];
-			dev_dbg(&ts->client->dev, "Firmware Version %04x:%04x %04x:%04x\n",
+			dev_dbg(&ts->client->dev,
+				"Firmware Version %04x:%04x %04x:%04x\n",
 				ts->version_major, ts->version_minor,
 				ts->version_build, ts->version_rev);
 
@@ -552,7 +558,8 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 			break;
 
 		default:
-			dev_err(&ts->client->dev, "unrecognized response id: 0x%x\n",
+			dev_err(&ts->client->dev,
+				"unrecognized response id: 0x%x\n",
 				payload[RESPONSE_ID]);
 			break;
 		}
@@ -618,7 +625,8 @@ static int zforce_suspend(struct device *dev)
 
 		enable_irq_wake(client->irq);
 	} else if (input->users) {
-		dev_dbg(&client->dev, "suspend without being a wakeup source\n");
+		dev_dbg(&client->dev,
+			"suspend without being a wakeup source\n");
 
 		ret = zforce_stop(ts);
 		if (ret)
@@ -684,6 +692,45 @@ static void zforce_reset(void *data)
 	gpio_set_value(ts->pdata->gpio_rst, 0);
 }
 
+static struct zforce_ts_platdata *zforce_parse_dt(struct device *dev)
+{
+	struct zforce_ts_platdata *pdata;
+	struct device_node *np = dev->of_node;
+
+	if (!np)
+		return ERR_PTR(-ENOENT);
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		dev_err(dev, "failed to allocate platform data\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	pdata->gpio_int = of_get_gpio(np, 0);
+	if (!gpio_is_valid(pdata->gpio_int)) {
+		dev_err(dev, "failed to get interrupt gpio\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	pdata->gpio_rst = of_get_gpio(np, 1);
+	if (!gpio_is_valid(pdata->gpio_rst)) {
+		dev_err(dev, "failed to get reset gpio\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(np, "x-size", &pdata->x_max)) {
+		dev_err(dev, "failed to get x-size property\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(np, "y-size", &pdata->y_max)) {
+		dev_err(dev, "failed to get y-size property\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	return pdata;
+}
+
 static int zforce_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -692,8 +739,11 @@ static int zforce_probe(struct i2c_client *client,
 	struct input_dev *input_dev;
 	int ret;
 
-	if (!pdata)
-		return -EINVAL;
+	if (!pdata) {
+		pdata = zforce_parse_dt(&client->dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
 
 	ts = devm_kzalloc(&client->dev, sizeof(struct zforce_ts), GFP_KERNEL);
 	if (!ts)
@@ -798,7 +848,7 @@ static int zforce_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	/* this gets the firmware version among other informations */
+	/* this gets the firmware version among other information */
 	ret = zforce_command_wait(ts, COMMAND_STATUS);
 	if (ret < 0) {
 		dev_err(&client->dev, "couldn't get status, %d\n", ret);
@@ -829,11 +879,20 @@ static struct i2c_device_id zforce_idtable[] = {
 };
 MODULE_DEVICE_TABLE(i2c, zforce_idtable);
 
+#ifdef CONFIG_OF
+static struct of_device_id zforce_dt_idtable[] = {
+	{ .compatible = "neonode,zforce" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, zforce_dt_idtable);
+#endif
+
 static struct i2c_driver zforce_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
 		.name	= "zforce-ts",
 		.pm	= &zforce_pm_ops,
+		.of_match_table	= of_match_ptr(zforce_dt_idtable),
 	},
 	.probe		= zforce_probe,
 	.id_table	= zforce_idtable,