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Commit d9ff93b7 authored by synt4x93's avatar synt4x93
Browse files

drivers: touchscreen: cleanup 

Change-Id: I413f6dc6ef584b6ae3d28db7a1d68b94337e891b
parent d465c83b

arch/arm64/configs/exynos9810-crownlte_defconfig

+0 −58
Original line number Diff line number Diff line
@@ -2054,68 +2054,10 @@ CONFIG_TABLET_USB_KBTAB=y 
# CONFIG_TABLET_SERIAL_WACOM4 is not set

CONFIG_INPUT_TOUCHSCREEN=y

CONFIG_TOUCHSCREEN_PROPERTIES=y

# CONFIG_TOUCHSCREEN_ADS7846 is not set

# CONFIG_TOUCHSCREEN_AD7877 is not set

# CONFIG_TOUCHSCREEN_AD7879 is not set

# CONFIG_TOUCHSCREEN_AR1021_I2C is not set

# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set

# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set

# CONFIG_TOUCHSCREEN_BU21013 is not set

# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set

# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set

# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set

# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set

# CONFIG_TOUCHSCREEN_DYNAPRO is not set

# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set

# CONFIG_TOUCHSCREEN_EETI is not set

# CONFIG_TOUCHSCREEN_EGALAX is not set

# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set

# CONFIG_TOUCHSCREEN_FUJITSU is not set

# CONFIG_TOUCHSCREEN_GOODIX is not set

# CONFIG_TOUCHSCREEN_ILI210X is not set

# CONFIG_TOUCHSCREEN_GUNZE is not set

# CONFIG_TOUCHSCREEN_EKTF2127 is not set

# CONFIG_TOUCHSCREEN_ELAN is not set

# CONFIG_TOUCHSCREEN_ELO is not set

# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set

# CONFIG_TOUCHSCREEN_WACOM_I2C is not set

# CONFIG_TOUCHSCREEN_MAX11801 is not set

# CONFIG_TOUCHSCREEN_MCS5000 is not set

# CONFIG_TOUCHSCREEN_MMS114 is not set

# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set

# CONFIG_TOUCHSCREEN_MTOUCH is not set

# CONFIG_TOUCHSCREEN_IMX6UL_TSC is not set

# CONFIG_TOUCHSCREEN_INEXIO is not set

# CONFIG_TOUCHSCREEN_MK712 is not set

# CONFIG_TOUCHSCREEN_PENMOUNT is not set

# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set

# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set

# CONFIG_TOUCHSCREEN_TOUCHWIN is not set

# CONFIG_TOUCHSCREEN_PIXCIR is not set

# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set

# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set

# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set

# CONFIG_TOUCHSCREEN_TSC_SERIO is not set

# CONFIG_TOUCHSCREEN_TSC2004 is not set

# CONFIG_TOUCHSCREEN_TSC2005 is not set

# CONFIG_TOUCHSCREEN_TSC2007 is not set

# CONFIG_TOUCHSCREEN_RM_TS is not set

# CONFIG_TOUCHSCREEN_SILEAD is not set

# CONFIG_TOUCHSCREEN_SIS_I2C is not set

# CONFIG_TOUCHSCREEN_ST1232 is not set

# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set

# CONFIG_TOUCHSCREEN_SX8654 is not set

# CONFIG_TOUCHSCREEN_TPS6507X is not set

# CONFIG_TOUCHSCREEN_ZFORCE is not set

# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set

CONFIG_TOUCHSCREEN_DUMP_MODE=y

# CONFIG_TOUCHSCREEN_SEC_TS is not set

# CONFIG_TOUCHSCREEN_SEC_TS_GLOVEMODE is not set

CONFIG_TOUCHSCREEN_SEC_TS_Y771=y

# CONFIG_TOUCHSCREEN_FTS is not set

# CONFIG_TOUCHSCREEN_FTS7 is not set

# CONFIG_TOUCHSCREEN_FTS7_VALLEY is not set

# CONFIG_TOUCHSCREEN_FTS7_HAECHI is not set

CONFIG_INPUT_WACOM=y

CONFIG_EPEN_WACOM_W9018=y

# CONFIG_WACOM_LCD_FREQ_COMPENSATE is not set

arch/arm64/configs/exynos9810-star2lte_defconfig

+0 −58
Original line number Diff line number Diff line
@@ -2054,68 +2054,10 @@ CONFIG_TABLET_USB_KBTAB=y 
# CONFIG_TABLET_SERIAL_WACOM4 is not set

CONFIG_INPUT_TOUCHSCREEN=y

CONFIG_TOUCHSCREEN_PROPERTIES=y

# CONFIG_TOUCHSCREEN_ADS7846 is not set

# CONFIG_TOUCHSCREEN_AD7877 is not set

# CONFIG_TOUCHSCREEN_AD7879 is not set

# CONFIG_TOUCHSCREEN_AR1021_I2C is not set

# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set

# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set

# CONFIG_TOUCHSCREEN_BU21013 is not set

# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set

# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set

# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set

# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set

# CONFIG_TOUCHSCREEN_DYNAPRO is not set

# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set

# CONFIG_TOUCHSCREEN_EETI is not set

# CONFIG_TOUCHSCREEN_EGALAX is not set

# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set

# CONFIG_TOUCHSCREEN_FUJITSU is not set

# CONFIG_TOUCHSCREEN_GOODIX is not set

# CONFIG_TOUCHSCREEN_ILI210X is not set

# CONFIG_TOUCHSCREEN_GUNZE is not set

# CONFIG_TOUCHSCREEN_EKTF2127 is not set

# CONFIG_TOUCHSCREEN_ELAN is not set

# CONFIG_TOUCHSCREEN_ELO is not set

# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set

# CONFIG_TOUCHSCREEN_WACOM_I2C is not set

# CONFIG_TOUCHSCREEN_MAX11801 is not set

# CONFIG_TOUCHSCREEN_MCS5000 is not set

# CONFIG_TOUCHSCREEN_MMS114 is not set

# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set

# CONFIG_TOUCHSCREEN_MTOUCH is not set

# CONFIG_TOUCHSCREEN_IMX6UL_TSC is not set

# CONFIG_TOUCHSCREEN_INEXIO is not set

# CONFIG_TOUCHSCREEN_MK712 is not set

# CONFIG_TOUCHSCREEN_PENMOUNT is not set

# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set

# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set

# CONFIG_TOUCHSCREEN_TOUCHWIN is not set

# CONFIG_TOUCHSCREEN_PIXCIR is not set

# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set

# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set

# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set

# CONFIG_TOUCHSCREEN_TSC_SERIO is not set

# CONFIG_TOUCHSCREEN_TSC2004 is not set

# CONFIG_TOUCHSCREEN_TSC2005 is not set

# CONFIG_TOUCHSCREEN_TSC2007 is not set

# CONFIG_TOUCHSCREEN_RM_TS is not set

# CONFIG_TOUCHSCREEN_SILEAD is not set

# CONFIG_TOUCHSCREEN_SIS_I2C is not set

# CONFIG_TOUCHSCREEN_ST1232 is not set

# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set

# CONFIG_TOUCHSCREEN_SX8654 is not set

# CONFIG_TOUCHSCREEN_TPS6507X is not set

# CONFIG_TOUCHSCREEN_ZFORCE is not set

# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set

CONFIG_TOUCHSCREEN_DUMP_MODE=y

CONFIG_TOUCHSCREEN_SEC_TS=y

# CONFIG_TOUCHSCREEN_SEC_TS_GLOVEMODE is not set

# CONFIG_TOUCHSCREEN_SEC_TS_Y771 is not set

# CONFIG_TOUCHSCREEN_FTS is not set

# CONFIG_TOUCHSCREEN_FTS7 is not set

# CONFIG_TOUCHSCREEN_FTS7_VALLEY is not set

# CONFIG_TOUCHSCREEN_FTS7_HAECHI is not set

# CONFIG_INPUT_WACOM is not set

# CONFIG_EPEN_WACOM_W9018 is not set

# CONFIG_WACOM_LCD_FREQ_COMPENSATE is not set

arch/arm64/configs/exynos9810-starlte_defconfig

+0 −58
Original line number Diff line number Diff line
@@ -2054,68 +2054,10 @@ CONFIG_TABLET_USB_KBTAB=y 
# CONFIG_TABLET_SERIAL_WACOM4 is not set

CONFIG_INPUT_TOUCHSCREEN=y

CONFIG_TOUCHSCREEN_PROPERTIES=y

# CONFIG_TOUCHSCREEN_ADS7846 is not set

# CONFIG_TOUCHSCREEN_AD7877 is not set

# CONFIG_TOUCHSCREEN_AD7879 is not set

# CONFIG_TOUCHSCREEN_AR1021_I2C is not set

# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set

# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set

# CONFIG_TOUCHSCREEN_BU21013 is not set

# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set

# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set

# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set

# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set

# CONFIG_TOUCHSCREEN_DYNAPRO is not set

# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set

# CONFIG_TOUCHSCREEN_EETI is not set

# CONFIG_TOUCHSCREEN_EGALAX is not set

# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set

# CONFIG_TOUCHSCREEN_FUJITSU is not set

# CONFIG_TOUCHSCREEN_GOODIX is not set

# CONFIG_TOUCHSCREEN_ILI210X is not set

# CONFIG_TOUCHSCREEN_GUNZE is not set

# CONFIG_TOUCHSCREEN_EKTF2127 is not set

# CONFIG_TOUCHSCREEN_ELAN is not set

# CONFIG_TOUCHSCREEN_ELO is not set

# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set

# CONFIG_TOUCHSCREEN_WACOM_I2C is not set

# CONFIG_TOUCHSCREEN_MAX11801 is not set

# CONFIG_TOUCHSCREEN_MCS5000 is not set

# CONFIG_TOUCHSCREEN_MMS114 is not set

# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set

# CONFIG_TOUCHSCREEN_MTOUCH is not set

# CONFIG_TOUCHSCREEN_IMX6UL_TSC is not set

# CONFIG_TOUCHSCREEN_INEXIO is not set

# CONFIG_TOUCHSCREEN_MK712 is not set

# CONFIG_TOUCHSCREEN_PENMOUNT is not set

# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set

# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set

# CONFIG_TOUCHSCREEN_TOUCHWIN is not set

# CONFIG_TOUCHSCREEN_PIXCIR is not set

# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set

# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set

# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set

# CONFIG_TOUCHSCREEN_TSC_SERIO is not set

# CONFIG_TOUCHSCREEN_TSC2004 is not set

# CONFIG_TOUCHSCREEN_TSC2005 is not set

# CONFIG_TOUCHSCREEN_TSC2007 is not set

# CONFIG_TOUCHSCREEN_RM_TS is not set

# CONFIG_TOUCHSCREEN_SILEAD is not set

# CONFIG_TOUCHSCREEN_SIS_I2C is not set

# CONFIG_TOUCHSCREEN_ST1232 is not set

# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set

# CONFIG_TOUCHSCREEN_SX8654 is not set

# CONFIG_TOUCHSCREEN_TPS6507X is not set

# CONFIG_TOUCHSCREEN_ZFORCE is not set

# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set

CONFIG_TOUCHSCREEN_DUMP_MODE=y

CONFIG_TOUCHSCREEN_SEC_TS=y

# CONFIG_TOUCHSCREEN_SEC_TS_GLOVEMODE is not set

# CONFIG_TOUCHSCREEN_SEC_TS_Y771 is not set

# CONFIG_TOUCHSCREEN_FTS is not set

# CONFIG_TOUCHSCREEN_FTS7 is not set

# CONFIG_TOUCHSCREEN_FTS7_VALLEY is not set

# CONFIG_TOUCHSCREEN_FTS7_HAECHI is not set

# CONFIG_INPUT_WACOM is not set

# CONFIG_EPEN_WACOM_W9018 is not set

# CONFIG_WACOM_LCD_FREQ_COMPENSATE is not set

drivers/input/touchscreen/88pm860x-ts.c

deleted100644 → 0
+0 −312
Original line number Diff line number Diff line 
/*

 * Touchscreen driver for Marvell 88PM860x

 *

 * Copyright (C) 2009 Marvell International Ltd.

 * 	Haojian Zhuang <haojian.zhuang@marvell.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/i2c.h>

#include <linux/input.h>

#include <linux/mfd/88pm860x.h>

#include <linux/slab.h>

#include <linux/device.h>



#define MEAS_LEN		(8)

#define ACCURATE_BIT		(12)



/* touch register */

#define MEAS_EN3		(0x52)



#define MEAS_TSIX_1		(0x8D)

#define MEAS_TSIX_2		(0x8E)

#define MEAS_TSIY_1		(0x8F)

#define MEAS_TSIY_2		(0x90)

#define MEAS_TSIZ1_1		(0x91)

#define MEAS_TSIZ1_2		(0x92)

#define MEAS_TSIZ2_1		(0x93)

#define MEAS_TSIZ2_2		(0x94)



/* bit definitions of touch */

#define MEAS_PD_EN		(1 << 3)

#define MEAS_TSIX_EN		(1 << 4)

#define MEAS_TSIY_EN		(1 << 5)

#define MEAS_TSIZ1_EN		(1 << 6)

#define MEAS_TSIZ2_EN		(1 << 7)



struct pm860x_touch {

	struct input_dev *idev;

	struct i2c_client *i2c;

	struct pm860x_chip *chip;

	int irq;

	int res_x;		/* resistor of Xplate */

};



static irqreturn_t pm860x_touch_handler(int irq, void *data)

{

	struct pm860x_touch *touch = data;

	struct pm860x_chip *chip = touch->chip;

	unsigned char buf[MEAS_LEN];

	int x, y, pen_down;

	int z1, z2, rt = 0;

	int ret;



	ret = pm860x_bulk_read(touch->i2c, MEAS_TSIX_1, MEAS_LEN, buf);

	if (ret < 0)

		goto out;



	pen_down = buf[1] & (1 << 6);

	x = ((buf[0] & 0xFF) << 4) | (buf[1] & 0x0F);

	y = ((buf[2] & 0xFF) << 4) | (buf[3] & 0x0F);

	z1 = ((buf[4] & 0xFF) << 4) | (buf[5] & 0x0F);

	z2 = ((buf[6] & 0xFF) << 4) | (buf[7] & 0x0F);



	if (pen_down) {

		if ((x != 0) && (z1 != 0) && (touch->res_x != 0)) {

			rt = z2 / z1 - 1;

			rt = (rt * touch->res_x * x) >> ACCURATE_BIT;

			dev_dbg(chip->dev, "z1:%d, z2:%d, rt:%d\n",

				z1, z2, rt);

		}

		input_report_abs(touch->idev, ABS_X, x);

		input_report_abs(touch->idev, ABS_Y, y);

		input_report_abs(touch->idev, ABS_PRESSURE, rt);

		input_report_key(touch->idev, BTN_TOUCH, 1);

		dev_dbg(chip->dev, "pen down at [%d, %d].\n", x, y);

	} else {

		input_report_abs(touch->idev, ABS_PRESSURE, 0);

		input_report_key(touch->idev, BTN_TOUCH, 0);

		dev_dbg(chip->dev, "pen release\n");

	}

	input_sync(touch->idev);



out:

	return IRQ_HANDLED;

}



static int pm860x_touch_open(struct input_dev *dev)

{

	struct pm860x_touch *touch = input_get_drvdata(dev);

	int data, ret;



	data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN

		| MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;

	ret = pm860x_set_bits(touch->i2c, MEAS_EN3, data, data);

	if (ret < 0)

		goto out;

	return 0;

out:

	return ret;

}



static void pm860x_touch_close(struct input_dev *dev)

{

	struct pm860x_touch *touch = input_get_drvdata(dev);

	int data;



	data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN

		| MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;

	pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);

}



#ifdef CONFIG_OF

static int pm860x_touch_dt_init(struct platform_device *pdev,

					  struct pm860x_chip *chip,

					  int *res_x)

{

	struct device_node *np = pdev->dev.parent->of_node;

	struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \

				 : chip->companion;

	int data, n, ret;

	if (!np)

		return -ENODEV;

	np = of_get_child_by_name(np, "touch");

	if (!np) {

		dev_err(&pdev->dev, "Can't find touch node\n");

		return -EINVAL;

	}

	/* set GPADC MISC1 register */

	data = 0;

	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-prebias", &n))

		data |= (n << 1) & PM8607_GPADC_PREBIAS_MASK;

	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-slot-cycle", &n))

		data |= (n << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;

	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-off-scale", &n))

		data |= (n << 5) & PM8607_GPADC_OFF_SCALE_MASK;

	if (!of_property_read_u32(np, "marvell,88pm860x-gpadc-sw-cal", &n))

		data |= (n << 7) & PM8607_GPADC_SW_CAL_MASK;

	if (data) {

		ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);

		if (ret < 0)

			goto err_put_node;

	}

	/* set tsi prebias time */

	if (!of_property_read_u32(np, "marvell,88pm860x-tsi-prebias", &data)) {

		ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);

		if (ret < 0)

			goto err_put_node;

	}

	/* set prebias & prechg time of pen detect */

	data = 0;

	if (!of_property_read_u32(np, "marvell,88pm860x-pen-prebias", &n))

		data |= n & PM8607_PD_PREBIAS_MASK;

	if (!of_property_read_u32(np, "marvell,88pm860x-pen-prechg", &n))

		data |= n & PM8607_PD_PRECHG_MASK;

	if (data) {

		ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);

		if (ret < 0)

			goto err_put_node;

	}

	of_property_read_u32(np, "marvell,88pm860x-resistor-X", res_x);



	of_node_put(np);



	return 0;



err_put_node:

	of_node_put(np);



	return -EINVAL;

}

#else

#define pm860x_touch_dt_init(x, y, z)	(-1)

#endif



static int pm860x_touch_probe(struct platform_device *pdev)

{

	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);

	struct pm860x_touch_pdata *pdata = dev_get_platdata(&pdev->dev);

	struct pm860x_touch *touch;

	struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \

				 : chip->companion;

	int irq, ret, res_x = 0, data = 0;



	irq = platform_get_irq(pdev, 0);

	if (irq < 0) {

		dev_err(&pdev->dev, "No IRQ resource!\n");

		return -EINVAL;

	}



	if (pm860x_touch_dt_init(pdev, chip, &res_x)) {

		if (pdata) {

			/* set GPADC MISC1 register */

			data = 0;

			data |= (pdata->gpadc_prebias << 1)

				& PM8607_GPADC_PREBIAS_MASK;

			data |= (pdata->slot_cycle << 3)

				& PM8607_GPADC_SLOT_CYCLE_MASK;

			data |= (pdata->off_scale << 5)

				& PM8607_GPADC_OFF_SCALE_MASK;

			data |= (pdata->sw_cal << 7)

				& PM8607_GPADC_SW_CAL_MASK;

			if (data) {

				ret = pm860x_reg_write(i2c,

					PM8607_GPADC_MISC1, data);

				if (ret < 0)

					return -EINVAL;

			}

			/* set tsi prebias time */

			if (pdata->tsi_prebias) {

				data = pdata->tsi_prebias;

				ret = pm860x_reg_write(i2c,

					PM8607_TSI_PREBIAS, data);

				if (ret < 0)

					return -EINVAL;

			}

			/* set prebias & prechg time of pen detect */

			data = 0;

			data |= pdata->pen_prebias

				& PM8607_PD_PREBIAS_MASK;

			data |= (pdata->pen_prechg << 5)

				& PM8607_PD_PRECHG_MASK;

			if (data) {

				ret = pm860x_reg_write(i2c,

					PM8607_PD_PREBIAS, data);

				if (ret < 0)

					return -EINVAL;

			}

			res_x = pdata->res_x;

		} else {

			dev_err(&pdev->dev, "failed to get platform data\n");

			return -EINVAL;

		}

	}

	/* enable GPADC */

	ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1, PM8607_GPADC_EN,

			      PM8607_GPADC_EN);

	if (ret)

		return ret;



	touch = devm_kzalloc(&pdev->dev, sizeof(struct pm860x_touch),

			     GFP_KERNEL);

	if (!touch)

		return -ENOMEM;



	platform_set_drvdata(pdev, touch);



	touch->idev = devm_input_allocate_device(&pdev->dev);

	if (!touch->idev) {

		dev_err(&pdev->dev, "Failed to allocate input device!\n");

		return -ENOMEM;

	}



	touch->idev->name = "88pm860x-touch";

	touch->idev->phys = "88pm860x/input0";

	touch->idev->id.bustype = BUS_I2C;

	touch->idev->dev.parent = &pdev->dev;

	touch->idev->open = pm860x_touch_open;

	touch->idev->close = pm860x_touch_close;

	touch->chip = chip;

	touch->i2c = i2c;

	touch->irq = irq;

	touch->res_x = res_x;

	input_set_drvdata(touch->idev, touch);



	ret = devm_request_threaded_irq(&pdev->dev, touch->irq, NULL,

					pm860x_touch_handler, IRQF_ONESHOT,

					"touch", touch);

	if (ret < 0)

		return ret;



	__set_bit(EV_ABS, touch->idev->evbit);

	__set_bit(ABS_X, touch->idev->absbit);

	__set_bit(ABS_Y, touch->idev->absbit);

	__set_bit(ABS_PRESSURE, touch->idev->absbit);

	__set_bit(EV_SYN, touch->idev->evbit);

	__set_bit(EV_KEY, touch->idev->evbit);

	__set_bit(BTN_TOUCH, touch->idev->keybit);



	input_set_abs_params(touch->idev, ABS_X, 0, 1 << ACCURATE_BIT, 0, 0);

	input_set_abs_params(touch->idev, ABS_Y, 0, 1 << ACCURATE_BIT, 0, 0);

	input_set_abs_params(touch->idev, ABS_PRESSURE, 0, 1 << ACCURATE_BIT,

				0, 0);



	ret = input_register_device(touch->idev);

	if (ret < 0) {

		dev_err(chip->dev, "Failed to register touch!\n");

		return ret;

	}



	platform_set_drvdata(pdev, touch);

	return 0;

}



static struct platform_driver pm860x_touch_driver = {

	.driver	= {

		.name	= "88pm860x-touch",

	},

	.probe	= pm860x_touch_probe,

};

module_platform_driver(pm860x_touch_driver);



MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");

MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");

MODULE_LICENSE("GPL");

MODULE_ALIAS("platform:88pm860x-touch");

drivers/input/touchscreen/Kconfig

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