[PATCH 8/9] ideapad: Change the driver name to ideapad-laptop

[Ike Panhc]

Since the platform drivers doing more for laptops than just using specific
ACPI device. It will be good to change the name from *_acpi to *-laptop.

Reference: http://lkml.org/lkml/2010/8/14/154

Signed-off-by: Ike Panhc <ike.pan@xxxxxxxxxxxxx>
Acked-by: Len Brown <len.brown@xxxxxxxxx>
---
 drivers/platform/x86/Kconfig          |    4 +-
 drivers/platform/x86/Makefile         |    2 +-
 drivers/platform/x86/ideapad-laptop.c |  382 +++++++++++++++++++++++++++++++++
 drivers/platform/x86/ideapad_acpi.c   |  382 ---------------------------------
 4 files changed, 385 insertions(+), 385 deletions(-)
 create mode 100644 drivers/platform/x86/ideapad-laptop.c
 delete mode 100644 drivers/platform/x86/ideapad_acpi.c

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index cff7cc2..0881c68 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -219,8 +219,8 @@ config SONYPI_COMPAT
 	  ---help---
 	  Build the sonypi driver compatibility code into the sony-laptop driver.
 
-config IDEAPAD_ACPI
-	tristate "Lenovo IdeaPad ACPI Laptop Extras"
+config IDEAPAD_LAPTOP
+	tristate "Lenovo IdeaPad Laptop Extras"
 	depends on ACPI
 	depends on RFKILL
 	help
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 85fb2b8..9846fa2 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -15,7 +15,7 @@ obj-$(CONFIG_ACERHDF)		+= acerhdf.o
 obj-$(CONFIG_HP_WMI)		+= hp-wmi.o
 obj-$(CONFIG_TC1100_WMI)	+= tc1100-wmi.o
 obj-$(CONFIG_SONY_LAPTOP)	+= sony-laptop.o
-obj-$(CONFIG_IDEAPAD_ACPI)	+= ideapad_acpi.o
+obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad_laptop.o
 obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
 obj-$(CONFIG_FUJITSU_LAPTOP)	+= fujitsu-laptop.o
 obj-$(CONFIG_PANASONIC_LAPTOP)	+= panasonic-laptop.o
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
new file mode 100644
index 0000000..78ac02a
--- /dev/null
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -0,0 +1,382 @@
+/*
+ *  ideapad_acpi.c - Lenovo IdeaPad ACPI Extras
+ *
+ *  Copyright © 2010 Intel Corporation
+ *  Copyright © 2010 David Woodhouse <dwmw2@xxxxxxxxxxxxx>
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA
+ *  02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/rfkill.h>
+
+#define IDEAPAD_DEV_CAMERA	0
+#define IDEAPAD_DEV_WLAN	1
+#define IDEAPAD_DEV_BLUETOOTH	2
+#define IDEAPAD_DEV_3G		3
+#define IDEAPAD_DEV_KILLSW	4
+
+struct ideapad_private {
+	acpi_handle handle;
+	struct rfkill *rfk[5];
+} *ideapad_priv;
+
+static struct {
+	char *name;
+	int cfgbit;
+	int opcode;
+	int type;
+} ideapad_rfk_data[] = {
+	{ "ideapad_camera",	19, 0x1E, NUM_RFKILL_TYPES },
+	{ "ideapad_wlan",	18, 0x15, RFKILL_TYPE_WLAN },
+	{ "ideapad_bluetooth",	16, 0x17, RFKILL_TYPE_BLUETOOTH },
+	{ "ideapad_3g",		17, 0x20, RFKILL_TYPE_WWAN },
+	{ "ideapad_killsw",	0,  0,    RFKILL_TYPE_WLAN }
+};
+
+/*
+ * ACPI Helpers
+ */
+#define IDEAPAD_EC_TIMEOUT (100) /* in ms */
+
+static int read_method_int(acpi_handle handle, const char *method, int *val)
+{
+	acpi_status status;
+	unsigned long long result;
+
+	status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
+	if (ACPI_FAILURE(status)) {
+		*val = -1;
+		return -1;
+	} else {
+		*val = result;
+		return 0;
+	}
+}
+
+static int method_vpcr(acpi_handle handle, int cmd, int *ret)
+{
+	acpi_status status;
+	unsigned long long result;
+	struct acpi_object_list params;
+	union acpi_object in_obj;
+
+	params.count = 1;
+	params.pointer = &in_obj;
+	in_obj.type = ACPI_TYPE_INTEGER;
+	in_obj.integer.value = cmd;
+
+	status = acpi_evaluate_integer(handle, "VPCR", &params, &result);
+
+	if (ACPI_FAILURE(status)) {
+		*ret = -1;
+		return -1;
+	} else {
+		*ret = result;
+		return 0;
+	}
+}
+
+static int method_vpcw(acpi_handle handle, int cmd, int data)
+{
+	struct acpi_object_list params;
+	union acpi_object in_obj[2];
+	acpi_status status;
+
+	params.count = 2;
+	params.pointer = in_obj;
+	in_obj[0].type = ACPI_TYPE_INTEGER;
+	in_obj[0].integer.value = cmd;
+	in_obj[1].type = ACPI_TYPE_INTEGER;
+	in_obj[1].integer.value = data;
+
+	status = acpi_evaluate_object(handle, "VPCW", &params, NULL);
+	if (status != AE_OK)
+		return -1;
+	return 0;
+}
+
+static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data)
+{
+	int val;
+	unsigned long int end_jiffies;
+
+	if (method_vpcw(handle, 1, cmd))
+		return -1;
+
+	for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
+	     time_before(jiffies, end_jiffies);) {
+		schedule();
+		if (method_vpcr(handle, 1, &val))
+			return -1;
+		if (val == 0) {
+			if (method_vpcr(handle, 0, &val))
+				return -1;
+			*data = val;
+			return 0;
+		}
+	}
+	pr_err("timeout in read_ec_cmd\n");
+	return -1;
+}
+
+static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
+{
+	int val;
+	unsigned long int end_jiffies;
+
+	if (method_vpcw(handle, 0, data))
+		return -1;
+	if (method_vpcw(handle, 1, cmd))
+		return -1;
+
+	for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
+	     time_before(jiffies, end_jiffies);) {
+		schedule();
+		if (method_vpcr(handle, 1, &val))
+			return -1;
+		if (val == 0)
+			return 0;
+	}
+	pr_err("timeout in write_ec_cmd\n");
+	return -1;
+}
+/* the above is ACPI helpers */
+
+static ssize_t show_ideapad_cam(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct ideapad_private *priv = dev_get_drvdata(dev);
+	acpi_handle handle = priv->handle;
+	unsigned long result;
+
+	if (read_ec_data(handle, 0x1D, &result))
+		return sprintf(buf, "-1\n");
+	return sprintf(buf, "%lu\n", result);
+}
+
+static ssize_t store_ideapad_cam(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct ideapad_private *priv = dev_get_drvdata(dev);
+	acpi_handle handle = priv->handle;
+	int ret, state;
+
+	if (!count)
+		return 0;
+	if (sscanf(buf, "%i", &state) != 1)
+		return -EINVAL;
+	ret = write_ec_cmd(handle, 0x1E, state);
+	if (ret < 0)
+		return ret;
+	return count;
+}
+
+static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
+
+static int ideapad_rfk_set(void *data, bool blocked)
+{
+	int device = (unsigned long)data;
+
+	if (device == IDEAPAD_DEV_KILLSW)
+		return -EINVAL;
+
+	return write_ec_cmd(ideapad_priv->handle,
+			    ideapad_rfk_data[device].opcode,
+			    !blocked);
+}
+
+static struct rfkill_ops ideapad_rfk_ops = {
+	.set_block = ideapad_rfk_set,
+};
+
+static void ideapad_sync_rfk_state(struct acpi_device *adevice)
+{
+	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	acpi_handle handle = priv->handle;
+	unsigned long hw_blocked;
+	int i;
+
+	if (read_ec_data(handle, 0x23, &hw_blocked))
+		return;
+	hw_blocked = !hw_blocked;
+
+	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
+		if (priv->rfk[i])
+			rfkill_set_hw_state(priv->rfk[i], hw_blocked);
+}
+
+static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
+{
+	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	int ret;
+	unsigned long sw_blocked;
+
+	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev,
+				      ideapad_rfk_data[dev].type, &ideapad_rfk_ops,
+				      (void *)(long)dev);
+	if (!priv->rfk[dev])
+		return -ENOMEM;
+
+	if (read_ec_data(ideapad_priv->handle, ideapad_rfk_data[dev].opcode-1,
+			 &sw_blocked)) {
+		rfkill_init_sw_state(priv->rfk[dev], 0);
+	} else {
+		sw_blocked = !sw_blocked;
+		rfkill_init_sw_state(priv->rfk[dev], sw_blocked);
+	}
+
+	ret = rfkill_register(priv->rfk[dev]);
+	if (ret) {
+		rfkill_destroy(priv->rfk[dev]);
+		return ret;
+	}
+	return 0;
+}
+
+static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
+{
+	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+
+	if (!priv->rfk[dev])
+		return;
+
+	rfkill_unregister(priv->rfk[dev]);
+	rfkill_destroy(priv->rfk[dev]);
+}
+
+static const struct acpi_device_id ideapad_device_ids[] = {
+	{ "VPC2004", 0},
+	{ "", 0},
+};
+MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
+
+static int ideapad_acpi_add(struct acpi_device *adevice)
+{
+	int i, cfg;
+	int devs_present[5];
+	struct ideapad_private *priv;
+
+	if (read_method_int(adevice->handle, "_CFG", &cfg))
+		return -ENODEV;
+
+	for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) {
+		if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
+			devs_present[i] = 1;
+		else
+			devs_present[i] = 0;
+	}
+
+	/* The hardware switch is always present */
+	devs_present[IDEAPAD_DEV_KILLSW] = 1;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	if (devs_present[IDEAPAD_DEV_CAMERA]) {
+		int ret = device_create_file(&adevice->dev, &dev_attr_camera_power);
+		if (ret) {
+			kfree(priv);
+			return ret;
+		}
+	}
+
+	priv->handle = adevice->handle;
+	dev_set_drvdata(&adevice->dev, priv);
+	ideapad_priv = priv;
+	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
+		if (!devs_present[i])
+			continue;
+
+		ideapad_register_rfkill(adevice, i);
+	}
+	ideapad_sync_rfk_state(adevice);
+	return 0;
+}
+
+static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
+{
+	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	int i;
+
+	device_remove_file(&adevice->dev, &dev_attr_camera_power);
+
+	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
+		ideapad_unregister_rfkill(adevice, i);
+
+	dev_set_drvdata(&adevice->dev, NULL);
+	kfree(priv);
+	return 0;
+}
+
+static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
+{
+	acpi_handle handle = adevice->handle;
+	unsigned long vpc1, vpc2, vpc_bit;
+
+	if (read_ec_data(handle, 0x10, &vpc1))
+		return;
+	if (read_ec_data(handle, 0x1A, &vpc2))
+		return;
+
+	vpc1 = (vpc2 << 8) | vpc1;
+	for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
+		if (test_bit(vpc_bit, &vpc1)) {
+			if (vpc_bit == 9)
+				ideapad_sync_rfk_state(adevice);
+		}
+	}
+}
+
+static struct acpi_driver ideapad_acpi_driver = {
+	.name = "ideapad_acpi",
+	.class = "IdeaPad",
+	.ids = ideapad_device_ids,
+	.ops.add = ideapad_acpi_add,
+	.ops.remove = ideapad_acpi_remove,
+	.ops.notify = ideapad_acpi_notify,
+	.owner = THIS_MODULE,
+};
+
+
+static int __init ideapad_acpi_module_init(void)
+{
+	acpi_bus_register_driver(&ideapad_acpi_driver);
+
+	return 0;
+}
+
+
+static void __exit ideapad_acpi_module_exit(void)
+{
+	acpi_bus_unregister_driver(&ideapad_acpi_driver);
+
+}
+
+MODULE_AUTHOR("David Woodhouse <dwmw2@xxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("IdeaPad ACPI Extras");
+MODULE_LICENSE("GPL");
+
+module_init(ideapad_acpi_module_init);
+module_exit(ideapad_acpi_module_exit);
diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c
deleted file mode 100644
index 78ac02a..0000000
--- a/drivers/platform/x86/ideapad_acpi.c
+++ /dev/null
@@ -1,382 +0,0 @@
-/*
- *  ideapad_acpi.c - Lenovo IdeaPad ACPI Extras
- *
- *  Copyright © 2010 Intel Corporation
- *  Copyright © 2010 David Woodhouse <dwmw2@xxxxxxxxxxxxx>
- *
- *  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., 51 Franklin Street, Fifth Floor, Boston, MA
- *  02110-1301, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-#include <linux/rfkill.h>
-
-#define IDEAPAD_DEV_CAMERA	0
-#define IDEAPAD_DEV_WLAN	1
-#define IDEAPAD_DEV_BLUETOOTH	2
-#define IDEAPAD_DEV_3G		3
-#define IDEAPAD_DEV_KILLSW	4
-
-struct ideapad_private {
-	acpi_handle handle;
-	struct rfkill *rfk[5];
-} *ideapad_priv;
-
-static struct {
-	char *name;
-	int cfgbit;
-	int opcode;
-	int type;
-} ideapad_rfk_data[] = {
-	{ "ideapad_camera",	19, 0x1E, NUM_RFKILL_TYPES },
-	{ "ideapad_wlan",	18, 0x15, RFKILL_TYPE_WLAN },
-	{ "ideapad_bluetooth",	16, 0x17, RFKILL_TYPE_BLUETOOTH },
-	{ "ideapad_3g",		17, 0x20, RFKILL_TYPE_WWAN },
-	{ "ideapad_killsw",	0,  0,    RFKILL_TYPE_WLAN }
-};
-
-/*
- * ACPI Helpers
- */
-#define IDEAPAD_EC_TIMEOUT (100) /* in ms */
-
-static int read_method_int(acpi_handle handle, const char *method, int *val)
-{
-	acpi_status status;
-	unsigned long long result;
-
-	status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
-	if (ACPI_FAILURE(status)) {
-		*val = -1;
-		return -1;
-	} else {
-		*val = result;
-		return 0;
-	}
-}
-
-static int method_vpcr(acpi_handle handle, int cmd, int *ret)
-{
-	acpi_status status;
-	unsigned long long result;
-	struct acpi_object_list params;
-	union acpi_object in_obj;
-
-	params.count = 1;
-	params.pointer = &in_obj;
-	in_obj.type = ACPI_TYPE_INTEGER;
-	in_obj.integer.value = cmd;
-
-	status = acpi_evaluate_integer(handle, "VPCR", &params, &result);
-
-	if (ACPI_FAILURE(status)) {
-		*ret = -1;
-		return -1;
-	} else {
-		*ret = result;
-		return 0;
-	}
-}
-
-static int method_vpcw(acpi_handle handle, int cmd, int data)
-{
-	struct acpi_object_list params;
-	union acpi_object in_obj[2];
-	acpi_status status;
-
-	params.count = 2;
-	params.pointer = in_obj;
-	in_obj[0].type = ACPI_TYPE_INTEGER;
-	in_obj[0].integer.value = cmd;
-	in_obj[1].type = ACPI_TYPE_INTEGER;
-	in_obj[1].integer.value = data;
-
-	status = acpi_evaluate_object(handle, "VPCW", &params, NULL);
-	if (status != AE_OK)
-		return -1;
-	return 0;
-}
-
-static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data)
-{
-	int val;
-	unsigned long int end_jiffies;
-
-	if (method_vpcw(handle, 1, cmd))
-		return -1;
-
-	for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
-	     time_before(jiffies, end_jiffies);) {
-		schedule();
-		if (method_vpcr(handle, 1, &val))
-			return -1;
-		if (val == 0) {
-			if (method_vpcr(handle, 0, &val))
-				return -1;
-			*data = val;
-			return 0;
-		}
-	}
-	pr_err("timeout in read_ec_cmd\n");
-	return -1;
-}
-
-static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
-{
-	int val;
-	unsigned long int end_jiffies;
-
-	if (method_vpcw(handle, 0, data))
-		return -1;
-	if (method_vpcw(handle, 1, cmd))
-		return -1;
-
-	for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
-	     time_before(jiffies, end_jiffies);) {
-		schedule();
-		if (method_vpcr(handle, 1, &val))
-			return -1;
-		if (val == 0)
-			return 0;
-	}
-	pr_err("timeout in write_ec_cmd\n");
-	return -1;
-}
-/* the above is ACPI helpers */
-
-static ssize_t show_ideapad_cam(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct ideapad_private *priv = dev_get_drvdata(dev);
-	acpi_handle handle = priv->handle;
-	unsigned long result;
-
-	if (read_ec_data(handle, 0x1D, &result))
-		return sprintf(buf, "-1\n");
-	return sprintf(buf, "%lu\n", result);
-}
-
-static ssize_t store_ideapad_cam(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t count)
-{
-	struct ideapad_private *priv = dev_get_drvdata(dev);
-	acpi_handle handle = priv->handle;
-	int ret, state;
-
-	if (!count)
-		return 0;
-	if (sscanf(buf, "%i", &state) != 1)
-		return -EINVAL;
-	ret = write_ec_cmd(handle, 0x1E, state);
-	if (ret < 0)
-		return ret;
-	return count;
-}
-
-static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
-
-static int ideapad_rfk_set(void *data, bool blocked)
-{
-	int device = (unsigned long)data;
-
-	if (device == IDEAPAD_DEV_KILLSW)
-		return -EINVAL;
-
-	return write_ec_cmd(ideapad_priv->handle,
-			    ideapad_rfk_data[device].opcode,
-			    !blocked);
-}
-
-static struct rfkill_ops ideapad_rfk_ops = {
-	.set_block = ideapad_rfk_set,
-};
-
-static void ideapad_sync_rfk_state(struct acpi_device *adevice)
-{
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-	acpi_handle handle = priv->handle;
-	unsigned long hw_blocked;
-	int i;
-
-	if (read_ec_data(handle, 0x23, &hw_blocked))
-		return;
-	hw_blocked = !hw_blocked;
-
-	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
-		if (priv->rfk[i])
-			rfkill_set_hw_state(priv->rfk[i], hw_blocked);
-}
-
-static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
-{
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-	int ret;
-	unsigned long sw_blocked;
-
-	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev,
-				      ideapad_rfk_data[dev].type, &ideapad_rfk_ops,
-				      (void *)(long)dev);
-	if (!priv->rfk[dev])
-		return -ENOMEM;
-
-	if (read_ec_data(ideapad_priv->handle, ideapad_rfk_data[dev].opcode-1,
-			 &sw_blocked)) {
-		rfkill_init_sw_state(priv->rfk[dev], 0);
-	} else {
-		sw_blocked = !sw_blocked;
-		rfkill_init_sw_state(priv->rfk[dev], sw_blocked);
-	}
-
-	ret = rfkill_register(priv->rfk[dev]);
-	if (ret) {
-		rfkill_destroy(priv->rfk[dev]);
-		return ret;
-	}
-	return 0;
-}
-
-static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
-{
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-
-	if (!priv->rfk[dev])
-		return;
-
-	rfkill_unregister(priv->rfk[dev]);
-	rfkill_destroy(priv->rfk[dev]);
-}
-
-static const struct acpi_device_id ideapad_device_ids[] = {
-	{ "VPC2004", 0},
-	{ "", 0},
-};
-MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
-
-static int ideapad_acpi_add(struct acpi_device *adevice)
-{
-	int i, cfg;
-	int devs_present[5];
-	struct ideapad_private *priv;
-
-	if (read_method_int(adevice->handle, "_CFG", &cfg))
-		return -ENODEV;
-
-	for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) {
-		if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
-			devs_present[i] = 1;
-		else
-			devs_present[i] = 0;
-	}
-
-	/* The hardware switch is always present */
-	devs_present[IDEAPAD_DEV_KILLSW] = 1;
-
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	if (devs_present[IDEAPAD_DEV_CAMERA]) {
-		int ret = device_create_file(&adevice->dev, &dev_attr_camera_power);
-		if (ret) {
-			kfree(priv);
-			return ret;
-		}
-	}
-
-	priv->handle = adevice->handle;
-	dev_set_drvdata(&adevice->dev, priv);
-	ideapad_priv = priv;
-	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
-		if (!devs_present[i])
-			continue;
-
-		ideapad_register_rfkill(adevice, i);
-	}
-	ideapad_sync_rfk_state(adevice);
-	return 0;
-}
-
-static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
-{
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-	int i;
-
-	device_remove_file(&adevice->dev, &dev_attr_camera_power);
-
-	for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
-		ideapad_unregister_rfkill(adevice, i);
-
-	dev_set_drvdata(&adevice->dev, NULL);
-	kfree(priv);
-	return 0;
-}
-
-static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
-{
-	acpi_handle handle = adevice->handle;
-	unsigned long vpc1, vpc2, vpc_bit;
-
-	if (read_ec_data(handle, 0x10, &vpc1))
-		return;
-	if (read_ec_data(handle, 0x1A, &vpc2))
-		return;
-
-	vpc1 = (vpc2 << 8) | vpc1;
-	for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
-		if (test_bit(vpc_bit, &vpc1)) {
-			if (vpc_bit == 9)
-				ideapad_sync_rfk_state(adevice);
-		}
-	}
-}
-
-static struct acpi_driver ideapad_acpi_driver = {
-	.name = "ideapad_acpi",
-	.class = "IdeaPad",
-	.ids = ideapad_device_ids,
-	.ops.add = ideapad_acpi_add,
-	.ops.remove = ideapad_acpi_remove,
-	.ops.notify = ideapad_acpi_notify,
-	.owner = THIS_MODULE,
-};
-
-
-static int __init ideapad_acpi_module_init(void)
-{
-	acpi_bus_register_driver(&ideapad_acpi_driver);
-
-	return 0;
-}
-
-
-static void __exit ideapad_acpi_module_exit(void)
-{
-	acpi_bus_unregister_driver(&ideapad_acpi_driver);
-
-}
-
-MODULE_AUTHOR("David Woodhouse <dwmw2@xxxxxxxxxxxxx>");
-MODULE_DESCRIPTION("IdeaPad ACPI Extras");
-MODULE_LICENSE("GPL");
-
-module_init(ideapad_acpi_module_init);
-module_exit(ideapad_acpi_module_exit);
-- 
1.7.1

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