s3c2442: R.I.P.

It is broken and it is not maintained by anyone since long time.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34767 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 957 deletions

diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/input/misc/lis302dl.c b/target/linux/s3c24xx/files-2.6.30/drivers/input/misc/lis302dl.c
deleted file mode 100644
index dc6602a8ea..0000000000
--- a/target/linux/s3c24xx/files-2.6.30/drivers/input/misc/lis302dl.c
+++ /dev/null
@@ -1,957 +0,0 @@
-/* Linux kernel driver for the ST LIS302D 3-axis accelerometer
- *
- * Copyright (C) 2007-2008 by Openmoko, Inc.
- * Author: Harald Welte <laforge@openmoko.org>
- *         converted to private bitbang by:
- *         Andy Green <andy@openmoko.com>
- *         ability to set acceleration threshold added by:
- *         Simon Kagstrom <simon.kagstrom@gmail.com>
- * All rights reserved.
- *
- * 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
- *
- * TODO
- * 	* statistics for overflow events
- * 	* configuration interface (sysfs) for
- * 		* enable/disable x/y/z axis data ready
- * 		* enable/disable resume from freee fall / click
- * 		* free fall / click parameters
- * 		* high pass filter parameters
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-
-#include <linux/lis302dl.h>
-
-/* Utility functions */
-static u8 __reg_read(struct lis302dl_info *lis, u8 reg)
-{
-	struct spi_message msg;
-	struct spi_transfer t;
-	u8 data[2] = {0xc0 | reg};
-	int rc;
-
-	spi_message_init(&msg);
-	memset(&t, 0, sizeof t);
-	t.len = 2;
-	spi_message_add_tail(&t, &msg);
-	t.tx_buf = &data[0];
-	t.rx_buf = &data[0];
-
-	/* Should complete without blocking */
-	rc = spi_non_blocking_transfer(lis->spi, &msg);
-	if (rc < 0) {
-		dev_err(lis->dev, "Error reading register\n");
-		return rc;
-	}
-
-	return data[1];
-}
-
-static void __reg_write(struct lis302dl_info *lis, u8 reg, u8 val)
-{
-	struct spi_message msg;
-	struct spi_transfer t;
-	u8 data[2] = {reg, val};
-
-	spi_message_init(&msg);
-	memset(&t, 0, sizeof t);
-	t.len = 2;
-	spi_message_add_tail(&t, &msg);
-	t.tx_buf = &data[0];
-	t.rx_buf = &data[0];
-
-	/* Completes without blocking */
-	if (spi_non_blocking_transfer(lis->spi, &msg) < 0)
-		dev_err(lis->dev, "Error writing register\n");
-}
-
-static void __reg_set_bit_mask(struct lis302dl_info *lis, u8 reg, u8 mask,
-		u8 val)
-{
-	u_int8_t tmp;
-
-	val &= mask;
-
-	tmp = __reg_read(lis, reg);
-	tmp &= ~mask;
-	tmp |= val;
-	__reg_write(lis, reg, tmp);
-}
-
-static int __ms_to_duration(struct lis302dl_info *lis, int ms)
-{
-	/* If we have 400 ms sampling rate, the stepping is 2.5 ms,
-	 * on 100 ms the stepping is 10ms */
-	if (lis->flags & LIS302DL_F_DR)
-		return min((ms * 10) / 25, 637);
-
-	return min(ms / 10, 2550);
-}
-
-static int __duration_to_ms(struct lis302dl_info *lis, int duration)
-{
-	if (lis->flags & LIS302DL_F_DR)
-		return (duration * 25) / 10;
-
-	return duration * 10;
-}
-
-static u8 __mg_to_threshold(struct lis302dl_info *lis, int mg)
-{
-	/* If FS is set each bit is 71mg, otherwise 18mg. The THS register
-	 * has 7 bits for the threshold value */
-	if (lis->flags & LIS302DL_F_FS)
-		return min(mg / 71, 127);
-
-	return min(mg / 18, 127);
-}
-
-static int __threshold_to_mg(struct lis302dl_info *lis, u8 threshold)
-{
-	if (lis->flags & LIS302DL_F_FS)
-		return threshold * 71;
-
-	return threshold * 18;
-}
-
-/* interrupt handling related */
-
-enum lis302dl_intmode {
-	LIS302DL_INTMODE_GND		= 0x00,
-	LIS302DL_INTMODE_FF_WU_1	= 0x01,
-	LIS302DL_INTMODE_FF_WU_2	= 0x02,
-	LIS302DL_INTMODE_FF_WU_12	= 0x03,
-	LIS302DL_INTMODE_DATA_READY	= 0x04,
-	LIS302DL_INTMODE_CLICK		= 0x07,
-};
-
-static void __lis302dl_int_mode(struct device *dev, int int_pin,
-			      enum lis302dl_intmode mode)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	switch (int_pin) {
-	case 1:
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL3, 0x07, mode);
-		break;
-	case 2:
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL3, 0x38, mode << 3);
-		break;
-	default:
-		BUG();
-	}
-}
-
-static void __enable_wakeup(struct lis302dl_info *lis)
-{
-	__reg_write(lis, LIS302DL_REG_CTRL1, 0);
-
-	/* First zero to get to a known state */
-	__reg_write(lis, LIS302DL_REG_FF_WU_CFG_1, LIS302DL_FFWUCFG_XHIE |
-			LIS302DL_FFWUCFG_YHIE | LIS302DL_FFWUCFG_ZHIE |
-			LIS302DL_FFWUCFG_LIR);
-	__reg_write(lis, LIS302DL_REG_FF_WU_THS_1,
-			__mg_to_threshold(lis, lis->wakeup.threshold));
-	__reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1,
-			__ms_to_duration(lis, lis->wakeup.duration));
-
-	/* Route the interrupt for wakeup */
-	__lis302dl_int_mode(lis->dev, 1,
-			LIS302DL_INTMODE_FF_WU_1);
-
-	__reg_read(lis, LIS302DL_REG_HP_FILTER_RESET);
-	__reg_read(lis, LIS302DL_REG_OUT_X);
-	__reg_read(lis, LIS302DL_REG_OUT_Y);
-	__reg_read(lis, LIS302DL_REG_OUT_Z);
-	__reg_read(lis, LIS302DL_REG_STATUS);
-	__reg_read(lis, LIS302DL_REG_FF_WU_SRC_1);
-	__reg_read(lis, LIS302DL_REG_FF_WU_SRC_2);
-	__reg_write(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_PD | 7);
-}
-
-static void __enable_data_collection(struct lis302dl_info *lis)
-{
-	u_int8_t ctrl1 = LIS302DL_CTRL1_PD | LIS302DL_CTRL1_Xen |
-			 LIS302DL_CTRL1_Yen | LIS302DL_CTRL1_Zen;
-
-	/* make sure we're powered up and generate data ready */
-	__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, ctrl1, ctrl1);
-
-	/* If the threshold is zero, let the device generated an interrupt
-	 * on each datum */
-	if (lis->threshold == 0) {
-		__reg_write(lis, LIS302DL_REG_CTRL2, 0);
-		__lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_DATA_READY);
-		__lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_DATA_READY);
-	} else {
-		__reg_write(lis, LIS302DL_REG_CTRL2,
-				LIS302DL_CTRL2_HPFF1);
-		__reg_write(lis, LIS302DL_REG_FF_WU_THS_1,
-				__mg_to_threshold(lis, lis->threshold));
-		__reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1,
-				__ms_to_duration(lis, lis->duration));
-
-		/* Clear the HP filter "starting point" */
-		__reg_read(lis, LIS302DL_REG_HP_FILTER_RESET);
-		__reg_write(lis, LIS302DL_REG_FF_WU_CFG_1,
-				LIS302DL_FFWUCFG_XHIE | LIS302DL_FFWUCFG_YHIE |
-				LIS302DL_FFWUCFG_ZHIE | LIS302DL_FFWUCFG_LIR);
-		__lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_FF_WU_12);
-		__lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_FF_WU_12);
-	}
-}
-
-#if 0
-static void _report_btn_single(struct input_dev *inp, int btn)
-{
-	input_report_key(inp, btn, 1);
-	input_sync(inp);
-	input_report_key(inp, btn, 0);
-}
-
-static void _report_btn_double(struct input_dev *inp, int btn)
-{
-	input_report_key(inp, btn, 1);
-	input_sync(inp);
-	input_report_key(inp, btn, 0);
-	input_sync(inp);
-	input_report_key(inp, btn, 1);
-	input_sync(inp);
-	input_report_key(inp, btn, 0);
-}
-#endif
-
-
-static void lis302dl_bitbang_read_sample(struct lis302dl_info *lis)
-{
-	u8 data[(LIS302DL_REG_OUT_Z - LIS302DL_REG_STATUS) + 2] = {0xC0 | LIS302DL_REG_STATUS};
-	u8 *read = data + 1;
-	unsigned long flags;
-	int mg_per_sample = __threshold_to_mg(lis, 1);
-	struct spi_message msg;
-	struct spi_transfer t;
-
-	spi_message_init(&msg);
-	memset(&t, 0, sizeof t);
-	t.len = sizeof(data);
-	spi_message_add_tail(&t, &msg);
-	t.tx_buf = &data[0];
-	t.rx_buf = &data[0];
-
-	/* grab the set of register containing status and XYZ data */
-
-	local_irq_save(flags);
-
-	/* Should complete without blocking */
-	if (spi_non_blocking_transfer(lis->spi, &msg) < 0)
-		dev_err(lis->dev, "Error reading registers\n");
-
-	local_irq_restore(flags);
-
-	/*
-	 * at the minute the test below fails 50% of the time due to
-	 * a problem with level interrupts causing ISRs to get called twice.
-	 * This is a workaround for that, but actually this test is still
-	 * valid and the information can be used for overrrun stats.
-	 */
-
-	/* has any kind of overrun been observed by the lis302dl? */
-	if (read[0] & (LIS302DL_STATUS_XOR |
-		       LIS302DL_STATUS_YOR |
-		       LIS302DL_STATUS_ZOR))
-		lis->overruns++;
-
-	/* we have a valid sample set? */
-	if (read[0] & LIS302DL_STATUS_XYZDA) {
-		input_report_abs(lis->input_dev, ABS_X, mg_per_sample *
-			    (s8)read[LIS302DL_REG_OUT_X - LIS302DL_REG_STATUS]);
-		input_report_abs(lis->input_dev, ABS_Y, mg_per_sample *
-			    (s8)read[LIS302DL_REG_OUT_Y - LIS302DL_REG_STATUS]);
-		input_report_abs(lis->input_dev, ABS_Z, mg_per_sample *
-			    (s8)read[LIS302DL_REG_OUT_Z - LIS302DL_REG_STATUS]);
-
-		input_sync(lis->input_dev);
-	}
-
-	if (lis->threshold)
-		/* acknowledge the wakeup source */
-		__reg_read(lis,	LIS302DL_REG_FF_WU_SRC_1);
-}
-
-static irqreturn_t lis302dl_interrupt(int irq, void *_lis)
-{
-	struct lis302dl_info *lis = _lis;
-
-	lis302dl_bitbang_read_sample(lis);
-	return IRQ_HANDLED;
-}
-
-/* sysfs */
-
-static ssize_t show_overruns(struct device *dev, struct device_attribute *attr,
-			 char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%u\n", lis->overruns);
-}
-
-static DEVICE_ATTR(overruns, S_IRUGO, show_overruns, NULL);
-
-static ssize_t show_rate(struct device *dev, struct device_attribute *attr,
-			 char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	u8 ctrl1;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	ctrl1 = __reg_read(lis, LIS302DL_REG_CTRL1);
-	local_irq_restore(flags);
-
-	return sprintf(buf, "%d\n", ctrl1 & LIS302DL_CTRL1_DR ? 400 : 100);
-}
-
-static ssize_t set_rate(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	if (!strcmp(buf, "400\n")) {
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_DR,
-				 LIS302DL_CTRL1_DR);
-		lis->flags |= LIS302DL_F_DR;
-	} else {
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_DR,
-				0);
-		lis->flags &= ~LIS302DL_F_DR;
-	}
-	local_irq_restore(flags);
-
-	return count;
-}
-
-static DEVICE_ATTR(sample_rate, S_IRUGO | S_IWUSR, show_rate, set_rate);
-
-static ssize_t show_scale(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	u_int8_t ctrl1;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	ctrl1 = __reg_read(lis, LIS302DL_REG_CTRL1);
-	local_irq_restore(flags);
-
-	return sprintf(buf, "%s\n", ctrl1 & LIS302DL_CTRL1_FS ? "9.2" : "2.3");
-}
-
-static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	if (!strcmp(buf, "9.2\n")) {
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_FS,
-				 LIS302DL_CTRL1_FS);
-		lis->flags |= LIS302DL_F_FS;
-	} else {
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_FS,
-				0);
-		lis->flags &= ~LIS302DL_F_FS;
-	}
-
-	if (lis->flags & LIS302DL_F_INPUT_OPEN)
-		__enable_data_collection(lis);
-
-	local_irq_restore(flags);
-
-	return count;
-}
-
-static DEVICE_ATTR(full_scale, S_IRUGO | S_IWUSR, show_scale, set_scale);
-
-static ssize_t show_threshold(struct device *dev, struct device_attribute *attr,
-		 char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	/* Display the device view of the threshold setting */
-	return sprintf(buf, "%d\n", __threshold_to_mg(lis,
-			__mg_to_threshold(lis, lis->threshold)));
-}
-
-static ssize_t set_threshold(struct device *dev, struct device_attribute *attr,
-		 const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned int val;
-
-	if (sscanf(buf, "%u\n", &val) != 1)
-		return -EINVAL;
-	/* 8g is the maximum if FS is 1 */
-	if (val > 8000)
-		return -ERANGE;
-
-	/* Set the threshold and write it out if the device is used */
-	lis->threshold = val;
-
-	if (lis->flags & LIS302DL_F_INPUT_OPEN) {
-		unsigned long flags;
-
-		local_irq_save(flags);
-		__enable_data_collection(lis);
-		local_irq_restore(flags);
-	}
-
-	return count;
-}
-
-static DEVICE_ATTR(threshold, S_IRUGO | S_IWUSR, show_threshold, set_threshold);
-
-static ssize_t show_duration(struct device *dev, struct device_attribute *attr,
-		 char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%d\n", __duration_to_ms(lis,
-			__ms_to_duration(lis, lis->duration)));
-}
-
-static ssize_t set_duration(struct device *dev, struct device_attribute *attr,
-		 const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned int val;
-
-	if (sscanf(buf, "%u\n", &val) != 1)
-		return -EINVAL;
-	if (val > 2550)
-		return -ERANGE;
-
-	lis->duration = val;
-	if (lis->flags & LIS302DL_F_INPUT_OPEN)
-		__reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1,
-				__ms_to_duration(lis, lis->duration));
-
-	return count;
-}
-
-static DEVICE_ATTR(duration, S_IRUGO | S_IWUSR, show_duration, set_duration);
-
-static ssize_t lis302dl_dump(struct device *dev, struct device_attribute *attr,
-								      char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	int n = 0;
-	u8 reg[0x40];
-	char *end = buf;
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	for (n = 0; n < sizeof(reg); n++)
-		reg[n] = __reg_read(lis, n);
-
-	local_irq_restore(flags);
-
-	for (n = 0; n < sizeof(reg); n += 16) {
-		hex_dump_to_buffer(reg + n, 16, 16, 1, end, 128, 0);
-		end += strlen(end);
-		*end++ = '\n';
-		*end++ = '\0';
-	}
-
-	return end - buf;
-}
-static DEVICE_ATTR(dump, S_IRUGO, lis302dl_dump, NULL);
-
-/* Configure freefall/wakeup interrupts */
-static ssize_t set_wakeup_threshold(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned int threshold;
-
-	if (sscanf(buf, "%u\n", &threshold) != 1)
-		return -EINVAL;
-
-	if (threshold > 8000)
-		return -ERANGE;
-
-	/* Zero turns the feature off */
-	if (threshold == 0) {
-		if (lis->flags & LIS302DL_F_IRQ_WAKE) {
-			disable_irq_wake(lis->pdata->interrupt);
-			lis->flags &= ~LIS302DL_F_IRQ_WAKE;
-		}
-
-		return count;
-	}
-
-	lis->wakeup.threshold = threshold;
-
-	if (!(lis->flags & LIS302DL_F_IRQ_WAKE)) {
-		enable_irq_wake(lis->pdata->interrupt);
-		lis->flags |= LIS302DL_F_IRQ_WAKE;
-	}
-
-	return count;
-}
-
-static ssize_t show_wakeup_threshold(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	/* All events off? */
-	if (lis->wakeup.threshold == 0)
-		return sprintf(buf, "off\n");
-
-	return sprintf(buf, "%u\n", lis->wakeup.threshold);
-}
-
-static DEVICE_ATTR(wakeup_threshold, S_IRUGO | S_IWUSR, show_wakeup_threshold,
-		set_wakeup_threshold);
-
-static ssize_t set_wakeup_duration(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-	unsigned int duration;
-
-	if (sscanf(buf, "%u\n", &duration) != 1)
-		return -EINVAL;
-
-	if (duration > 2550)
-		return -ERANGE;
-
-	lis->wakeup.duration = duration;
-
-	return count;
-}
-
-static ssize_t show_wakeup_duration(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%u\n", lis->wakeup.duration);
-}
-
-static DEVICE_ATTR(wakeup_duration, S_IRUGO | S_IWUSR, show_wakeup_duration,
-		set_wakeup_duration);
-
-static struct attribute *lis302dl_sysfs_entries[] = {
-	&dev_attr_sample_rate.attr,
-	&dev_attr_full_scale.attr,
-	&dev_attr_threshold.attr,
-	&dev_attr_duration.attr,
-	&dev_attr_dump.attr,
-	&dev_attr_wakeup_threshold.attr,
-	&dev_attr_wakeup_duration.attr,
-	&dev_attr_overruns.attr,
-	NULL
-};
-
-static struct attribute_group lis302dl_attr_group = {
-	.name	= NULL,
-	.attrs	= lis302dl_sysfs_entries,
-};
-
-/* input device handling and driver core interaction */
-
-static int lis302dl_input_open(struct input_dev *inp)
-{
-	struct lis302dl_info *lis = input_get_drvdata(inp);
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	__enable_data_collection(lis);
-	lis->flags |= LIS302DL_F_INPUT_OPEN;
-
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-static void lis302dl_input_close(struct input_dev *inp)
-{
-	struct lis302dl_info *lis = input_get_drvdata(inp);
-	u_int8_t ctrl1 = LIS302DL_CTRL1_Xen | LIS302DL_CTRL1_Yen |
-			 LIS302DL_CTRL1_Zen;
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	/* since the input core already serializes access and makes sure we
-	 * only see close() for the close of the last user, we can safely
-	 * disable the data ready events */
-	__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, ctrl1, 0x00);
-	lis->flags &= ~LIS302DL_F_INPUT_OPEN;
-
-	/* however, don't power down the whole device if still needed */
-	if (!(lis->flags & LIS302DL_F_WUP_FF ||
-	      lis->flags & LIS302DL_F_WUP_CLICK)) {
-		__reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_PD,
-				 0x00);
-	}
-	local_irq_restore(flags);
-}
-
-/* get the device to reload its coefficients from EEPROM and wait for it
- * to complete
- */
-
-static int __lis302dl_reset_device(struct lis302dl_info *lis)
-{
-	int timeout = 10;
-
-	__reg_write(lis, LIS302DL_REG_CTRL2,
-			LIS302DL_CTRL2_BOOT | LIS302DL_CTRL2_FDS);
-
-	while ((__reg_read(lis, LIS302DL_REG_CTRL2)
-			& LIS302DL_CTRL2_BOOT) && (timeout--))
-		mdelay(1);
-
-	return !!(timeout < 0);
-}
-
-static int __devinit lis302dl_probe(struct spi_device *spi)
-{
-	int rc;
-	struct lis302dl_info *lis;
-	u_int8_t wai;
-	unsigned long flags;
-	struct lis302dl_platform_data *pdata = spi->dev.platform_data;
-
-	spi->mode = SPI_MODE_3;
-	rc = spi_setup(spi);
-	if (rc < 0) {
-		dev_err(&spi->dev, "spi_setup failed\n");
-		return rc;
-	}
-
-	lis = kzalloc(sizeof(*lis), GFP_KERNEL);
-	if (!lis)
-		return -ENOMEM;
-
-	lis->dev = &spi->dev;
-	lis->spi = spi;
-
-	dev_set_drvdata(lis->dev, lis);
-
-	lis->pdata = pdata;
-
-	rc = sysfs_create_group(&lis->dev->kobj, &lis302dl_attr_group);
-	if (rc) {
-		dev_err(lis->dev, "error creating sysfs group\n");
-		goto bail_free_lis;
-	}
-
-	/* initialize input layer details */
-	lis->input_dev = input_allocate_device();
-	if (!lis->input_dev) {
-		dev_err(lis->dev, "Unable to allocate input device\n");
-		goto bail_sysfs;
-	}
-
-	input_set_drvdata(lis->input_dev, lis);
-	lis->input_dev->name = pdata->name;
-	 /* SPI Bus not defined as a valid bus for input subsystem*/
-	lis->input_dev->id.bustype = BUS_I2C; /* lie about it */
-	lis->input_dev->open = lis302dl_input_open;
-	lis->input_dev->close = lis302dl_input_close;
-
-	rc = input_register_device(lis->input_dev);
-	if (rc) {
-		dev_err(lis->dev, "error %d registering input device\n", rc);
-		goto bail_inp_dev;
-	}
-
-	local_irq_save(flags);
-	/* Configure our IO */
-	(lis->pdata->lis302dl_suspend_io)(lis, 1);
-
-	wai = __reg_read(lis, LIS302DL_REG_WHO_AM_I);
-	if (wai != LIS302DL_WHO_AM_I_MAGIC) {
-		dev_err(lis->dev, "unknown who_am_i signature 0x%02x\n", wai);
-		dev_set_drvdata(lis->dev, NULL);
-		rc = -ENODEV;
-		local_irq_restore(flags);
-		goto bail_inp_reg;
-	}
-
-	set_bit(EV_ABS, lis->input_dev->evbit);
-	input_set_abs_params(lis->input_dev, ABS_X, 0, 0, 0, 0);
-	input_set_abs_params(lis->input_dev, ABS_Y, 0, 0, 0, 0);
-	input_set_abs_params(lis->input_dev, ABS_Z, 0, 0, 0, 0);
-
-	lis->threshold = 0;
-	lis->duration = 0;
-	memset(&lis->wakeup, 0, sizeof(lis->wakeup));
-
-	if (__lis302dl_reset_device(lis))
-		dev_err(lis->dev, "device BOOT reload failed\n");
-
-	/* force us powered */
-	__reg_write(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_PD |
-			LIS302DL_CTRL1_Xen |
-			LIS302DL_CTRL1_Yen |
-			LIS302DL_CTRL1_Zen);
-	mdelay(1);
-
-	__reg_write(lis, LIS302DL_REG_CTRL2, 0);
-	__reg_write(lis, LIS302DL_REG_CTRL3,
-			LIS302DL_CTRL3_PP_OD | LIS302DL_CTRL3_IHL);
-	__reg_write(lis, LIS302DL_REG_FF_WU_THS_1, 0x0);
-	__reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1, 0x00);
-	__reg_write(lis, LIS302DL_REG_FF_WU_CFG_1, 0x0);
-
-	/* start off in powered down mode; we power up when someone opens us */
-	__reg_write(lis, LIS302DL_REG_CTRL1, LIS302DL_CTRL1_Xen |
-			LIS302DL_CTRL1_Yen | LIS302DL_CTRL1_Zen);
-
-	if (pdata->open_drain)
-		/* switch interrupt to open collector, active-low */
-		__reg_write(lis, LIS302DL_REG_CTRL3,
-				LIS302DL_CTRL3_PP_OD | LIS302DL_CTRL3_IHL);
-	else
-		/* push-pull, active-low */
-		__reg_write(lis, LIS302DL_REG_CTRL3, LIS302DL_CTRL3_IHL);
-
-	__lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_GND);
-	__lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_GND);
-
-	__reg_read(lis, LIS302DL_REG_STATUS);
-	__reg_read(lis, LIS302DL_REG_FF_WU_SRC_1);
-	__reg_read(lis, LIS302DL_REG_FF_WU_SRC_2);
-	__reg_read(lis, LIS302DL_REG_CLICK_SRC);
-	local_irq_restore(flags);
-
-	dev_info(lis->dev, "Found %s\n", pdata->name);
-
-	lis->pdata = pdata;
-
-	set_irq_handler(lis->pdata->interrupt, handle_level_irq);
-
-	rc = request_irq(lis->pdata->interrupt, lis302dl_interrupt,
-			 IRQF_TRIGGER_LOW, "lis302dl", lis);
-
-	if (rc < 0) {
-		dev_err(lis->dev, "error requesting IRQ %d\n",
-			lis->pdata->interrupt);
-		goto bail_inp_reg;
-	}
-	return 0;
-
-bail_inp_reg:
-	input_unregister_device(lis->input_dev);
-bail_inp_dev:
-	input_free_device(lis->input_dev);
-bail_sysfs:
-	sysfs_remove_group(&lis->dev->kobj, &lis302dl_attr_group);
-bail_free_lis:
-	kfree(lis);
-	return rc;
-}
-
-static int __devexit lis302dl_remove(struct spi_device *spi)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(&spi->dev);
-	unsigned long flags;
-
-	/* Disable interrupts */
-	if (lis->flags & LIS302DL_F_IRQ_WAKE)
-		disable_irq_wake(lis->pdata->interrupt);
-	free_irq(lis->pdata->interrupt, lis);
-
-	/* Reset and power down the device */
-	local_irq_save(flags);
-	__reg_write(lis, LIS302DL_REG_CTRL3, 0x00);
-	__reg_write(lis, LIS302DL_REG_CTRL2, 0x00);
-	__reg_write(lis, LIS302DL_REG_CTRL1, 0x00);
-	local_irq_restore(flags);
-
-	/* Cleanup resources */
-	sysfs_remove_group(&spi->dev.kobj, &lis302dl_attr_group);
-	input_unregister_device(lis->input_dev);
-	if (lis->input_dev)
-		input_free_device(lis->input_dev);
-	dev_set_drvdata(lis->dev, NULL);
-	kfree(lis);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-
-static u8 regs_to_save[] = {
-	LIS302DL_REG_CTRL1,
-	LIS302DL_REG_CTRL2,
-	LIS302DL_REG_CTRL3,
-	LIS302DL_REG_FF_WU_CFG_1,
-	LIS302DL_REG_FF_WU_THS_1,
-	LIS302DL_REG_FF_WU_DURATION_1,
-	LIS302DL_REG_FF_WU_CFG_2,
-	LIS302DL_REG_FF_WU_THS_2,
-	LIS302DL_REG_FF_WU_DURATION_2,
-	LIS302DL_REG_CLICK_CFG,
-	LIS302DL_REG_CLICK_THSY_X,
-	LIS302DL_REG_CLICK_THSZ,
-	LIS302DL_REG_CLICK_TIME_LIMIT,
-	LIS302DL_REG_CLICK_LATENCY,
-	LIS302DL_REG_CLICK_WINDOW,
-
-};
-
-static int lis302dl_suspend(struct spi_device *spi, pm_message_t state)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(&spi->dev);
-	unsigned long flags;
-	u_int8_t tmp;
-	int n;
-
-	/* determine if we want to wake up from the accel. */
-	if (lis->flags & LIS302DL_F_WUP_CLICK)
-		return 0;
-
-	disable_irq(lis->pdata->interrupt);
-	local_irq_save(flags);
-
-	/*
-	 * When we share SPI over multiple sensors, there is a race here
-	 * that one or more sensors will lose.  In that case, the shared
-	 * SPI bus GPIO will be in sleep mode and partially pulled down.  So
-	 * we explicitly put our IO into "wake" mode here before the final
-	 * traffic to the sensor.
-	 */
-	(lis->pdata->lis302dl_suspend_io)(lis, 1);
-
-	/* save registers */
-	for (n = 0; n < ARRAY_SIZE(regs_to_save); n++)
-		lis->regs[regs_to_save[n]] =
-			__reg_read(lis, regs_to_save[n]);
-
-	/* power down or enable wakeup */
-
-	if (lis->wakeup.threshold == 0) {
-		tmp = __reg_read(lis, LIS302DL_REG_CTRL1);
-		tmp &= ~LIS302DL_CTRL1_PD;
-		__reg_write(lis, LIS302DL_REG_CTRL1, tmp);
-	} else
-		__enable_wakeup(lis);
-
-	/* place our IO to the device in sleep-compatible states */
-	(lis->pdata->lis302dl_suspend_io)(lis, 0);
-
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-static int lis302dl_resume(struct spi_device *spi)
-{
-	struct lis302dl_info *lis = dev_get_drvdata(&spi->dev);
-	unsigned long flags;
-	int n;
-
-	if (lis->flags & LIS302DL_F_WUP_CLICK)
-		return 0;
-
-	local_irq_save(flags);
-
-	/* get our IO to the device back in operational states */
-	(lis->pdata->lis302dl_suspend_io)(lis, 1);
-
-	/* resume from powerdown first! */
-	__reg_write(lis, LIS302DL_REG_CTRL1,
-			LIS302DL_CTRL1_PD |
-			LIS302DL_CTRL1_Xen |
-			LIS302DL_CTRL1_Yen |
-			LIS302DL_CTRL1_Zen);
-	mdelay(1);
-
-	if (__lis302dl_reset_device(lis))
-		dev_err(&spi->dev, "device BOOT reload failed\n");
-
-	lis->regs[LIS302DL_REG_CTRL1] |=	LIS302DL_CTRL1_PD |
-						LIS302DL_CTRL1_Xen |
-						LIS302DL_CTRL1_Yen |
-						LIS302DL_CTRL1_Zen;
-
-	/* restore registers after resume */
-	for (n = 0; n < ARRAY_SIZE(regs_to_save); n++)
-		__reg_write(lis, regs_to_save[n], lis->regs[regs_to_save[n]]);
-
-	/* if someone had us open, reset the non-wake threshold stuff */
-	if (lis->flags & LIS302DL_F_INPUT_OPEN)
-		__enable_data_collection(lis);
-
-	local_irq_restore(flags);
-	enable_irq(lis->pdata->interrupt);
-
-	return 0;
-}
-#else
-#define lis302dl_suspend	NULL
-#define lis302dl_resume		NULL
-#endif
-
-static struct spi_driver lis302dl_spi_driver = {
-	.driver = {
-		.name = "lis302dl",
-		.owner = THIS_MODULE,
-	},
-
-	.probe 	= lis302dl_probe,
-	.remove	= __devexit_p(lis302dl_remove),
-	.suspend = lis302dl_suspend,
-	.resume	 = lis302dl_resume,
-};
-
-static int __devinit lis302dl_init(void)
-{
-	return spi_register_driver(&lis302dl_spi_driver);
-}
-
-static void __exit lis302dl_exit(void)
-{
-	spi_unregister_driver(&lis302dl_spi_driver);
-}
-
-MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
-MODULE_LICENSE("GPL");
-
-module_init(lis302dl_init);
-module_exit(lis302dl_exit);