Move hdaps driver to platform/x86

The hdaps driver isn't a hardware monitoring driver, so it shouldn't
live under driver/hwmon. drivers/platform/x86 seems much more
appropriate, as the driver is only useful on x86 laptops.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

3 files changed, 0 insertions, 658 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 97499d00615a..e382da3122b7 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1088,26 +1088,6 @@ config SENSORS_ULTRA45
 	  This driver provides support for the Ultra45 workstation environmental
 	  sensors.
 
-config SENSORS_HDAPS
-	tristate "IBM Hard Drive Active Protection System (hdaps)"
-	depends on INPUT && X86
-	select INPUT_POLLDEV
-	default n
-	help
-	  This driver provides support for the IBM Hard Drive Active Protection
-	  System (hdaps), which provides an accelerometer and other misc. data.
-	  ThinkPads starting with the R50, T41, and X40 are supported.  The
-	  accelerometer data is readable via sysfs.
-
-	  This driver also provides an absolute input class device, allowing
-	  the laptop to act as a pinball machine-esque joystick.
-
-	  If your ThinkPad is not recognized by the driver, please update to latest
-	  BIOS. This is especially the case for some R52 ThinkPads.
-
-	  Say Y here if you have an applicable laptop and want to experience
-	  the awesome power of hdaps.
-
 config SENSORS_LIS3_SPI
 	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)"
 	depends on !ACPI && SPI_MASTER && INPUT
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index e3c2484f6c5f..ec9cb735c898 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -52,7 +52,6 @@ obj-$(CONFIG_SENSORS_G760A)	+= g760a.o
 obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o
 obj-$(CONFIG_SENSORS_GL520SM)	+= gl520sm.o
 obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o
-obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
 obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o
 obj-$(CONFIG_SENSORS_IBMAEM)	+= ibmaem.o
 obj-$(CONFIG_SENSORS_IBMPEX)	+= ibmpex.o
diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c
deleted file mode 100644
index bfd42f18924b..000000000000
--- a/drivers/hwmon/hdaps.c
+++ /dev/null
@@ -1,637 +0,0 @@
-/*
- * drivers/hwmon/hdaps.c - driver for IBM's Hard Drive Active Protection System
- *
- * Copyright (C) 2005 Robert Love <rml@novell.com>
- * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com>
- *
- * The HardDisk Active Protection System (hdaps) is present in IBM ThinkPads
- * starting with the R40, T41, and X40.  It provides a basic two-axis
- * accelerometer and other data, such as the device's temperature.
- *
- * This driver is based on the document by Mark A. Smith available at
- * http://www.almaden.ibm.com/cs/people/marksmith/tpaps.html and a lot of trial
- * and error.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License v2 as published by the
- * Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
- */
-
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/input-polldev.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/module.h>
-#include <linux/timer.h>
-#include <linux/dmi.h>
-#include <linux/jiffies.h>
-#include <linux/io.h>
-
-#define HDAPS_LOW_PORT		0x1600	/* first port used by hdaps */
-#define HDAPS_NR_PORTS		0x30	/* number of ports: 0x1600 - 0x162f */
-
-#define HDAPS_PORT_STATE	0x1611	/* device state */
-#define HDAPS_PORT_YPOS		0x1612	/* y-axis position */
-#define	HDAPS_PORT_XPOS		0x1614	/* x-axis position */
-#define HDAPS_PORT_TEMP1	0x1616	/* device temperature, in Celsius */
-#define HDAPS_PORT_YVAR		0x1617	/* y-axis variance (what is this?) */
-#define HDAPS_PORT_XVAR		0x1619	/* x-axis variance (what is this?) */
-#define HDAPS_PORT_TEMP2	0x161b	/* device temperature (again?) */
-#define HDAPS_PORT_UNKNOWN	0x161c	/* what is this? */
-#define HDAPS_PORT_KMACT	0x161d	/* keyboard or mouse activity */
-
-#define STATE_FRESH		0x50	/* accelerometer data is fresh */
-
-#define KEYBD_MASK		0x20	/* set if keyboard activity */
-#define MOUSE_MASK		0x40	/* set if mouse activity */
-#define KEYBD_ISSET(n)		(!! (n & KEYBD_MASK))	/* keyboard used? */
-#define MOUSE_ISSET(n)		(!! (n & MOUSE_MASK))	/* mouse used? */
-
-#define INIT_TIMEOUT_MSECS	4000	/* wait up to 4s for device init ... */
-#define INIT_WAIT_MSECS		200	/* ... in 200ms increments */
-
-#define HDAPS_POLL_INTERVAL	50	/* poll for input every 1/20s (50 ms)*/
-#define HDAPS_INPUT_FUZZ	4	/* input event threshold */
-#define HDAPS_INPUT_FLAT	4
-
-#define HDAPS_X_AXIS		(1 << 0)
-#define HDAPS_Y_AXIS		(1 << 1)
-#define HDAPS_BOTH_AXES		(HDAPS_X_AXIS | HDAPS_Y_AXIS)
-
-static struct platform_device *pdev;
-static struct input_polled_dev *hdaps_idev;
-static unsigned int hdaps_invert;
-static u8 km_activity;
-static int rest_x;
-static int rest_y;
-
-static DEFINE_MUTEX(hdaps_mtx);
-
-/*
- * __get_latch - Get the value from a given port.  Callers must hold hdaps_mtx.
- */
-static inline u8 __get_latch(u16 port)
-{
-	return inb(port) & 0xff;
-}
-
-/*
- * __check_latch - Check a port latch for a given value.  Returns zero if the
- * port contains the given value.  Callers must hold hdaps_mtx.
- */
-static inline int __check_latch(u16 port, u8 val)
-{
-	if (__get_latch(port) == val)
-		return 0;
-	return -EINVAL;
-}
-
-/*
- * __wait_latch - Wait up to 100us for a port latch to get a certain value,
- * returning zero if the value is obtained.  Callers must hold hdaps_mtx.
- */
-static int __wait_latch(u16 port, u8 val)
-{
-	unsigned int i;
-
-	for (i = 0; i < 20; i++) {
-		if (!__check_latch(port, val))
-			return 0;
-		udelay(5);
-	}
-
-	return -EIO;
-}
-
-/*
- * __device_refresh - request a refresh from the accelerometer.  Does not wait
- * for refresh to complete.  Callers must hold hdaps_mtx.
- */
-static void __device_refresh(void)
-{
-	udelay(200);
-	if (inb(0x1604) != STATE_FRESH) {
-		outb(0x11, 0x1610);
-		outb(0x01, 0x161f);
-	}
-}
-
-/*
- * __device_refresh_sync - request a synchronous refresh from the
- * accelerometer.  We wait for the refresh to complete.  Returns zero if
- * successful and nonzero on error.  Callers must hold hdaps_mtx.
- */
-static int __device_refresh_sync(void)
-{
-	__device_refresh();
-	return __wait_latch(0x1604, STATE_FRESH);
-}
-
-/*
- * __device_complete - indicate to the accelerometer that we are done reading
- * data, and then initiate an async refresh.  Callers must hold hdaps_mtx.
- */
-static inline void __device_complete(void)
-{
-	inb(0x161f);
-	inb(0x1604);
-	__device_refresh();
-}
-
-/*
- * hdaps_readb_one - reads a byte from a single I/O port, placing the value in
- * the given pointer.  Returns zero on success or a negative error on failure.
- * Can sleep.
- */
-static int hdaps_readb_one(unsigned int port, u8 *val)
-{
-	int ret;
-
-	mutex_lock(&hdaps_mtx);
-
-	/* do a sync refresh -- we need to be sure that we read fresh data */
-	ret = __device_refresh_sync();
-	if (ret)
-		goto out;
-
-	*val = inb(port);
-	__device_complete();
-
-out:
-	mutex_unlock(&hdaps_mtx);
-	return ret;
-}
-
-/* __hdaps_read_pair - internal lockless helper for hdaps_read_pair(). */
-static int __hdaps_read_pair(unsigned int port1, unsigned int port2,
-			     int *x, int *y)
-{
-	/* do a sync refresh -- we need to be sure that we read fresh data */
-	if (__device_refresh_sync())
-		return -EIO;
-
-	*y = inw(port2);
-	*x = inw(port1);
-	km_activity = inb(HDAPS_PORT_KMACT);
-	__device_complete();
-
-	/* hdaps_invert is a bitvector to negate the axes */
-	if (hdaps_invert & HDAPS_X_AXIS)
-		*x = -*x;
-	if (hdaps_invert & HDAPS_Y_AXIS)
-		*y = -*y;
-
-	return 0;
-}
-
-/*
- * hdaps_read_pair - reads the values from a pair of ports, placing the values
- * in the given pointers.  Returns zero on success.  Can sleep.
- */
-static int hdaps_read_pair(unsigned int port1, unsigned int port2,
-			   int *val1, int *val2)
-{
-	int ret;
-
-	mutex_lock(&hdaps_mtx);
-	ret = __hdaps_read_pair(port1, port2, val1, val2);
-	mutex_unlock(&hdaps_mtx);
-
-	return ret;
-}
-
-/*
- * hdaps_device_init - initialize the accelerometer.  Returns zero on success
- * and negative error code on failure.  Can sleep.
- */
-static int hdaps_device_init(void)
-{
-	int total, ret = -ENXIO;
-
-	mutex_lock(&hdaps_mtx);
-
-	outb(0x13, 0x1610);
-	outb(0x01, 0x161f);
-	if (__wait_latch(0x161f, 0x00))
-		goto out;
-
-	/*
-	 * Most ThinkPads return 0x01.
-	 *
-	 * Others--namely the R50p, T41p, and T42p--return 0x03.  These laptops
-	 * have "inverted" axises.
-	 *
-	 * The 0x02 value occurs when the chip has been previously initialized.
-	 */
-	if (__check_latch(0x1611, 0x03) &&
-		     __check_latch(0x1611, 0x02) &&
-		     __check_latch(0x1611, 0x01))
-		goto out;
-
-	printk(KERN_DEBUG "hdaps: initial latch check good (0x%02x).\n",
-	       __get_latch(0x1611));
-
-	outb(0x17, 0x1610);
-	outb(0x81, 0x1611);
-	outb(0x01, 0x161f);
-	if (__wait_latch(0x161f, 0x00))
-		goto out;
-	if (__wait_latch(0x1611, 0x00))
-		goto out;
-	if (__wait_latch(0x1612, 0x60))
-		goto out;
-	if (__wait_latch(0x1613, 0x00))
-		goto out;
-	outb(0x14, 0x1610);
-	outb(0x01, 0x1611);
-	outb(0x01, 0x161f);
-	if (__wait_latch(0x161f, 0x00))
-		goto out;
-	outb(0x10, 0x1610);
-	outb(0xc8, 0x1611);
-	outb(0x00, 0x1612);
-	outb(0x02, 0x1613);
-	outb(0x01, 0x161f);
-	if (__wait_latch(0x161f, 0x00))
-		goto out;
-	if (__device_refresh_sync())
-		goto out;
-	if (__wait_latch(0x1611, 0x00))
-		goto out;
-
-	/* we have done our dance, now let's wait for the applause */
-	for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
-		int x, y;
-
-		/* a read of the device helps push it into action */
-		__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y);
-		if (!__wait_latch(0x1611, 0x02)) {
-			ret = 0;
-			break;
-		}
-
-		msleep(INIT_WAIT_MSECS);
-	}
-
-out:
-	mutex_unlock(&hdaps_mtx);
-	return ret;
-}
-
-
-/* Device model stuff */
-
-static int hdaps_probe(struct platform_device *dev)
-{
-	int ret;
-
-	ret = hdaps_device_init();
-	if (ret)
-		return ret;
-
-	printk(KERN_INFO "hdaps: device successfully initialized.\n");
-	return 0;
-}
-
-static int hdaps_resume(struct platform_device *dev)
-{
-	return hdaps_device_init();
-}
-
-static struct platform_driver hdaps_driver = {
-	.probe = hdaps_probe,
-	.resume = hdaps_resume,
-	.driver	= {
-		.name = "hdaps",
-		.owner = THIS_MODULE,
-	},
-};
-
-/*
- * hdaps_calibrate - Set our "resting" values.  Callers must hold hdaps_mtx.
- */
-static void hdaps_calibrate(void)
-{
-	__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &rest_x, &rest_y);
-}
-
-static void hdaps_mousedev_poll(struct input_polled_dev *dev)
-{
-	struct input_dev *input_dev = dev->input;
-	int x, y;
-
-	mutex_lock(&hdaps_mtx);
-
-	if (__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y))
-		goto out;
-
-	input_report_abs(input_dev, ABS_X, x - rest_x);
-	input_report_abs(input_dev, ABS_Y, y - rest_y);
-	input_sync(input_dev);
-
-out:
-	mutex_unlock(&hdaps_mtx);
-}
-
-
-/* Sysfs Files */
-
-static ssize_t hdaps_position_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	int ret, x, y;
-
-	ret = hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "(%d,%d)\n", x, y);
-}
-
-static ssize_t hdaps_variance_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	int ret, x, y;
-
-	ret = hdaps_read_pair(HDAPS_PORT_XVAR, HDAPS_PORT_YVAR, &x, &y);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "(%d,%d)\n", x, y);
-}
-
-static ssize_t hdaps_temp1_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	u8 temp;
-	int ret;
-
-	ret = hdaps_readb_one(HDAPS_PORT_TEMP1, &temp);
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%u\n", temp);
-}
-
-static ssize_t hdaps_temp2_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	u8 temp;
-	int ret;
-
-	ret = hdaps_readb_one(HDAPS_PORT_TEMP2, &temp);
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%u\n", temp);
-}
-
-static ssize_t hdaps_keyboard_activity_show(struct device *dev,
-					    struct device_attribute *attr,
-					    char *buf)
-{
-	return sprintf(buf, "%u\n", KEYBD_ISSET(km_activity));
-}
-
-static ssize_t hdaps_mouse_activity_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sprintf(buf, "%u\n", MOUSE_ISSET(km_activity));
-}
-
-static ssize_t hdaps_calibrate_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "(%d,%d)\n", rest_x, rest_y);
-}
-
-static ssize_t hdaps_calibrate_store(struct device *dev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	mutex_lock(&hdaps_mtx);
-	hdaps_calibrate();
-	mutex_unlock(&hdaps_mtx);
-
-	return count;
-}
-
-static ssize_t hdaps_invert_show(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "%u\n", hdaps_invert);
-}
-
-static ssize_t hdaps_invert_store(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	int invert;
-
-	if (sscanf(buf, "%d", &invert) != 1 ||
-	    invert < 0 || invert > HDAPS_BOTH_AXES)
-		return -EINVAL;
-
-	hdaps_invert = invert;
-	hdaps_calibrate();
-
-	return count;
-}
-
-static DEVICE_ATTR(position, 0444, hdaps_position_show, NULL);
-static DEVICE_ATTR(variance, 0444, hdaps_variance_show, NULL);
-static DEVICE_ATTR(temp1, 0444, hdaps_temp1_show, NULL);
-static DEVICE_ATTR(temp2, 0444, hdaps_temp2_show, NULL);
-static DEVICE_ATTR(keyboard_activity, 0444, hdaps_keyboard_activity_show, NULL);
-static DEVICE_ATTR(mouse_activity, 0444, hdaps_mouse_activity_show, NULL);
-static DEVICE_ATTR(calibrate, 0644, hdaps_calibrate_show,hdaps_calibrate_store);
-static DEVICE_ATTR(invert, 0644, hdaps_invert_show, hdaps_invert_store);
-
-static struct attribute *hdaps_attributes[] = {
-	&dev_attr_position.attr,
-	&dev_attr_variance.attr,
-	&dev_attr_temp1.attr,
-	&dev_attr_temp2.attr,
-	&dev_attr_keyboard_activity.attr,
-	&dev_attr_mouse_activity.attr,
-	&dev_attr_calibrate.attr,
-	&dev_attr_invert.attr,
-	NULL,
-};
-
-static struct attribute_group hdaps_attribute_group = {
-	.attrs = hdaps_attributes,
-};
-
-
-/* Module stuff */
-
-/* hdaps_dmi_match - found a match.  return one, short-circuiting the hunt. */
-static int __init hdaps_dmi_match(const struct dmi_system_id *id)
-{
-	printk(KERN_INFO "hdaps: %s detected.\n", id->ident);
-	return 1;
-}
-
-/* hdaps_dmi_match_invert - found an inverted match. */
-static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
-{
-	hdaps_invert = (unsigned long)id->driver_data;
-	printk(KERN_INFO "hdaps: inverting axis (%u) readings.\n",
-	       hdaps_invert);
-	return hdaps_dmi_match(id);
-}
-
-#define HDAPS_DMI_MATCH_INVERT(vendor, model, axes) {	\
-	.ident = vendor " " model,			\
-	.callback = hdaps_dmi_match_invert,		\
-	.driver_data = (void *)axes,			\
-	.matches = {					\
-		DMI_MATCH(DMI_BOARD_VENDOR, vendor),	\
-		DMI_MATCH(DMI_PRODUCT_VERSION, model)	\
-	}						\
-}
-
-#define HDAPS_DMI_MATCH_NORMAL(vendor, model)		\
-	HDAPS_DMI_MATCH_INVERT(vendor, model, 0)
-
-/* Note that HDAPS_DMI_MATCH_NORMAL("ThinkPad T42") would match
-   "ThinkPad T42p", so the order of the entries matters.
-   If your ThinkPad is not recognized, please update to latest
-   BIOS. This is especially the case for some R52 ThinkPads. */
-static struct dmi_system_id __initdata hdaps_whitelist[] = {
-	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R52"),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T41"),
-	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T42"),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T43"),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T400", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X40"),
-	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad X41", HDAPS_Y_AXIS),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61s", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad Z60m"),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61m", HDAPS_BOTH_AXES),
-	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61p", HDAPS_BOTH_AXES),
-	{ .ident = NULL }
-};
-
-static int __init hdaps_init(void)
-{
-	struct input_dev *idev;
-	int ret;
-
-	if (!dmi_check_system(hdaps_whitelist)) {
-		printk(KERN_WARNING "hdaps: supported laptop not found!\n");
-		ret = -ENODEV;
-		goto out;
-	}
-
-	if (!request_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS, "hdaps")) {
-		ret = -ENXIO;
-		goto out;
-	}
-
-	ret = platform_driver_register(&hdaps_driver);
-	if (ret)
-		goto out_region;
-
-	pdev = platform_device_register_simple("hdaps", -1, NULL, 0);
-	if (IS_ERR(pdev)) {
-		ret = PTR_ERR(pdev);
-		goto out_driver;
-	}
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &hdaps_attribute_group);
-	if (ret)
-		goto out_device;
-
-	hdaps_idev = input_allocate_polled_device();
-	if (!hdaps_idev) {
-		ret = -ENOMEM;
-		goto out_group;
-	}
-
-	hdaps_idev->poll = hdaps_mousedev_poll;
-	hdaps_idev->poll_interval = HDAPS_POLL_INTERVAL;
-
-	/* initial calibrate for the input device */
-	hdaps_calibrate();
-
-	/* initialize the input class */
-	idev = hdaps_idev->input;
-	idev->name = "hdaps";
-	idev->phys = "isa1600/input0";
-	idev->id.bustype = BUS_ISA;
-	idev->dev.parent = &pdev->dev;
-	idev->evbit[0] = BIT_MASK(EV_ABS);
-	input_set_abs_params(idev, ABS_X,
-			-256, 256, HDAPS_INPUT_FUZZ, HDAPS_INPUT_FLAT);
-	input_set_abs_params(idev, ABS_Y,
-			-256, 256, HDAPS_INPUT_FUZZ, HDAPS_INPUT_FLAT);
-
-	ret = input_register_polled_device(hdaps_idev);
-	if (ret)
-		goto out_idev;
-
-	printk(KERN_INFO "hdaps: driver successfully loaded.\n");
-	return 0;
-
-out_idev:
-	input_free_polled_device(hdaps_idev);
-out_group:
-	sysfs_remove_group(&pdev->dev.kobj, &hdaps_attribute_group);
-out_device:
-	platform_device_unregister(pdev);
-out_driver:
-	platform_driver_unregister(&hdaps_driver);
-out_region:
-	release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS);
-out:
-	printk(KERN_WARNING "hdaps: driver init failed (ret=%d)!\n", ret);
-	return ret;
-}
-
-static void __exit hdaps_exit(void)
-{
-	input_unregister_polled_device(hdaps_idev);
-	input_free_polled_device(hdaps_idev);
-	sysfs_remove_group(&pdev->dev.kobj, &hdaps_attribute_group);
-	platform_device_unregister(pdev);
-	platform_driver_unregister(&hdaps_driver);
-	release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS);
-
-	printk(KERN_INFO "hdaps: driver unloaded.\n");
-}
-
-module_init(hdaps_init);
-module_exit(hdaps_exit);
-
-module_param_named(invert, hdaps_invert, int, 0);
-MODULE_PARM_DESC(invert, "invert data along each axis. 1 invert x-axis, "
-		 "2 invert y-axis, 3 invert both axes.");
-
-MODULE_AUTHOR("Robert Love");
-MODULE_DESCRIPTION("IBM Hard Drive Active Protection System (HDAPS) driver");
-MODULE_LICENSE("GPL v2");