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

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (65 commits)
  Input: gpio_keys - add support for switches (EV_SW)
  Input: cobalt_btns - convert to use polldev library
  Input: add skeleton for simple polled devices
  Input: update some documentation
  Input: wistron - fix typo in keymap for Acer TM610
  Input: add input_set_capability() helper
  Input: i8042 - add Fujitsu touchscreen/touchpad PNP IDs
  Input: i8042 - add Panasonic CF-29 to nomux list
  Input: lifebook - split into 2 devices
  Input: lifebook - add signature of Panasonic CF-29
  Input: lifebook - activate 6-byte protocol on select models
  Input: lifebook - work properly on Panasonic CF-18
  Input: cobalt buttons - separate device and driver registration
  Input: ati_remote - make button repeat sensitivity configurable
  Input: pxa27x - do not use deprecated SA_INTERRUPT flag
  Input: ucb1400 - make delays configurable
  Input: misc devices - switch to using input_dev->dev.parent
  Input: joysticks - switch to using input_dev->dev.parent
  Input: touchscreens - switch to using input_dev->dev.parent
  Input: mice - switch to using input_dev->dev.parent
  ...

Fixed up conflicts with core device model removal of "struct subsystem" manually.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

94 files changed, 3602 insertions, 1653 deletions

diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index da575deb3c7a..b4cd10653c4f 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -13,7 +13,6 @@ obj-$(CONFIG_INPUT_MOUSEDEV)	+= mousedev.o
 obj-$(CONFIG_INPUT_JOYDEV)	+= joydev.o
 obj-$(CONFIG_INPUT_EVDEV)	+= evdev.o
 obj-$(CONFIG_INPUT_TSDEV)	+= tsdev.o
-obj-$(CONFIG_INPUT_POWER)	+= power.o
 obj-$(CONFIG_INPUT_EVBUG)	+= evbug.o
 
 obj-$(CONFIG_INPUT_KEYBOARD)	+= keyboard/
diff --git a/drivers/input/evbug.c b/drivers/input/evbug.c
index 5a9653c3128a..c21f2f127234 100644
--- a/drivers/input/evbug.c
+++ b/drivers/input/evbug.c
@@ -38,31 +38,43 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Input driver event debug module");
 MODULE_LICENSE("GPL");
 
-static char evbug_name[] = "evbug";
-
 static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
 {
 	printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
 		handle->dev->phys, type, code, value);
 }
 
-static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev,
-					  const struct input_device_id *id)
+static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
+			 const struct input_device_id *id)
 {
 	struct input_handle *handle;
+	int error;
 
-	if (!(handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL)))
-		return NULL;
+	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+	if (!handle)
+		return -ENOMEM;
 
 	handle->dev = dev;
 	handle->handler = handler;
-	handle->name = evbug_name;
+	handle->name = "evbug";
+
+	error = input_register_handle(handle);
+	if (error)
+		goto err_free_handle;
 
-	input_open_device(handle);
+	error = input_open_device(handle);
+	if (error)
+		goto err_unregister_handle;
 
 	printk(KERN_DEBUG "evbug.c: Connected device: \"%s\", %s\n", dev->name, dev->phys);
 
-	return handle;
+	return 0;
+
+ err_unregister_handle:
+	input_unregister_handle(handle);
+ err_free_handle:
+	kfree(handle);
+	return error;
 }
 
 static void evbug_disconnect(struct input_handle *handle)
@@ -70,7 +82,7 @@ static void evbug_disconnect(struct input_handle *handle)
 	printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n", handle->dev->phys);
 
 	input_close_device(handle);
-
+	input_unregister_handle(handle);
 	kfree(handle);
 }
 
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 6e55b2c5874e..1f6fcec0c6fc 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -29,11 +29,11 @@ struct evdev {
 	char name[16];
 	struct input_handle handle;
 	wait_queue_head_t wait;
-	struct evdev_list *grab;
-	struct list_head list;
+	struct evdev_client *grab;
+	struct list_head client_list;
 };
 
-struct evdev_list {
+struct evdev_client {
 	struct input_event buffer[EVDEV_BUFFER_SIZE];
 	int head;
 	int tail;
@@ -47,28 +47,28 @@ static struct evdev *evdev_table[EVDEV_MINORS];
 static void evdev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
 {
 	struct evdev *evdev = handle->private;
-	struct evdev_list *list;
+	struct evdev_client *client;
 
 	if (evdev->grab) {
-		list = evdev->grab;
+		client = evdev->grab;
 
-		do_gettimeofday(&list->buffer[list->head].time);
-		list->buffer[list->head].type = type;
-		list->buffer[list->head].code = code;
-		list->buffer[list->head].value = value;
-		list->head = (list->head + 1) & (EVDEV_BUFFER_SIZE - 1);
+		do_gettimeofday(&client->buffer[client->head].time);
+		client->buffer[client->head].type = type;
+		client->buffer[client->head].code = code;
+		client->buffer[client->head].value = value;
+		client->head = (client->head + 1) & (EVDEV_BUFFER_SIZE - 1);
 
-		kill_fasync(&list->fasync, SIGIO, POLL_IN);
+		kill_fasync(&client->fasync, SIGIO, POLL_IN);
 	} else
-		list_for_each_entry(list, &evdev->list, node) {
+		list_for_each_entry(client, &evdev->client_list, node) {
 
-			do_gettimeofday(&list->buffer[list->head].time);
-			list->buffer[list->head].type = type;
-			list->buffer[list->head].code = code;
-			list->buffer[list->head].value = value;
-			list->head = (list->head + 1) & (EVDEV_BUFFER_SIZE - 1);
+			do_gettimeofday(&client->buffer[client->head].time);
+			client->buffer[client->head].type = type;
+			client->buffer[client->head].code = code;
+			client->buffer[client->head].value = value;
+			client->head = (client->head + 1) & (EVDEV_BUFFER_SIZE - 1);
 
-			kill_fasync(&list->fasync, SIGIO, POLL_IN);
+			kill_fasync(&client->fasync, SIGIO, POLL_IN);
 		}
 
 	wake_up_interruptible(&evdev->wait);
@@ -76,22 +76,23 @@ static void evdev_event(struct input_handle *handle, unsigned int type, unsigned
 
 static int evdev_fasync(int fd, struct file *file, int on)
 {
+	struct evdev_client *client = file->private_data;
 	int retval;
-	struct evdev_list *list = file->private_data;
 
-	retval = fasync_helper(fd, file, on, &list->fasync);
+	retval = fasync_helper(fd, file, on, &client->fasync);
 
 	return retval < 0 ? retval : 0;
 }
 
 static int evdev_flush(struct file *file, fl_owner_t id)
 {
-	struct evdev_list *list = file->private_data;
+	struct evdev_client *client = file->private_data;
+	struct evdev *evdev = client->evdev;
 
-	if (!list->evdev->exist)
+	if (!evdev->exist)
 		return -ENODEV;
 
-	return input_flush_device(&list->evdev->handle, file);
+	return input_flush_device(&evdev->handle, file);
 }
 
 static void evdev_free(struct evdev *evdev)
@@ -100,48 +101,62 @@ static void evdev_free(struct evdev *evdev)
 	kfree(evdev);
 }
 
-static int evdev_release(struct inode * inode, struct file * file)
+static int evdev_release(struct inode *inode, struct file *file)
 {
-	struct evdev_list *list = file->private_data;
+	struct evdev_client *client = file->private_data;
+	struct evdev *evdev = client->evdev;
 
-	if (list->evdev->grab == list) {
-		input_release_device(&list->evdev->handle);
-		list->evdev->grab = NULL;
+	if (evdev->grab == client) {
+		input_release_device(&evdev->handle);
+		evdev->grab = NULL;
 	}
 
 	evdev_fasync(-1, file, 0);
-	list_del(&list->node);
+	list_del(&client->node);
+	kfree(client);
 
-	if (!--list->evdev->open) {
-		if (list->evdev->exist)
-			input_close_device(&list->evdev->handle);
+	if (!--evdev->open) {
+		if (evdev->exist)
+			input_close_device(&evdev->handle);
 		else
-			evdev_free(list->evdev);
+			evdev_free(evdev);
 	}
 
-	kfree(list);
 	return 0;
 }
 
-static int evdev_open(struct inode * inode, struct file * file)
+static int evdev_open(struct inode *inode, struct file *file)
 {
-	struct evdev_list *list;
+	struct evdev_client *client;
+	struct evdev *evdev;
 	int i = iminor(inode) - EVDEV_MINOR_BASE;
+	int error;
 
-	if (i >= EVDEV_MINORS || !evdev_table[i] || !evdev_table[i]->exist)
+	if (i >= EVDEV_MINORS)
 		return -ENODEV;
 
-	if (!(list = kzalloc(sizeof(struct evdev_list), GFP_KERNEL)))
+	evdev = evdev_table[i];
+
+	if (!evdev || !evdev->exist)
+		return -ENODEV;
+
+	client = kzalloc(sizeof(struct evdev_client), GFP_KERNEL);
+	if (!client)
 		return -ENOMEM;
 
-	list->evdev = evdev_table[i];
-	list_add_tail(&list->node, &evdev_table[i]->list);
-	file->private_data = list;
+	client->evdev = evdev;
+	list_add_tail(&client->node, &evdev->client_list);
 
-	if (!list->evdev->open++)
-		if (list->evdev->exist)
-			input_open_device(&list->evdev->handle);
+	if (!evdev->open++ && evdev->exist) {
+		error = input_open_device(&evdev->handle);
+		if (error) {
+			list_del(&client->node);
+			kfree(client);
+			return error;
+		}
+	}
 
+	file->private_data = client;
 	return 0;
 }
 
@@ -243,54 +258,55 @@ static int evdev_event_to_user(char __user *buffer, const struct input_event *ev
 
 #endif /* CONFIG_COMPAT */
 
-static ssize_t evdev_write(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
+static ssize_t evdev_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
 {
-	struct evdev_list *list = file->private_data;
+	struct evdev_client *client = file->private_data;
+	struct evdev *evdev = client->evdev;
 	struct input_event event;
 	int retval = 0;
 
-	if (!list->evdev->exist)
+	if (!evdev->exist)
 		return -ENODEV;
 
 	while (retval < count) {
 
 		if (evdev_event_from_user(buffer + retval, &event))
 			return -EFAULT;
-		input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
+		input_inject_event(&evdev->handle, event.type, event.code, event.value);
 		retval += evdev_event_size();
 	}
 
 	return retval;
 }
 
-static ssize_t evdev_read(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
+static ssize_t evdev_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
 {
-	struct evdev_list *list = file->private_data;
+	struct evdev_client *client = file->private_data;
+	struct evdev *evdev = client->evdev;
 	int retval;
 
 	if (count < evdev_event_size())
 		return -EINVAL;
 
-	if (list->head == list->tail && list->evdev->exist && (file->f_flags & O_NONBLOCK))
+	if (client->head == client->tail && evdev->exist && (file->f_flags & O_NONBLOCK))
 		return -EAGAIN;
 
-	retval = wait_event_interruptible(list->evdev->wait,
-		list->head != list->tail || (!list->evdev->exist));
-
+	retval = wait_event_interruptible(evdev->wait,
+		client->head != client->tail || !evdev->exist);
 	if (retval)
 		return retval;
 
-	if (!list->evdev->exist)
+	if (!evdev->exist)
 		return -ENODEV;
 
-	while (list->head != list->tail && retval + evdev_event_size() <= count) {
+	while (client->head != client->tail && retval + evdev_event_size() <= count) {
 
-		struct input_event *event = (struct input_event *) list->buffer + list->tail;
+		struct input_event *event = (struct input_event *) client->buffer + client->tail;
 
 		if (evdev_event_to_user(buffer + retval, event))
 			return -EFAULT;
 
-		list->tail = (list->tail + 1) & (EVDEV_BUFFER_SIZE - 1);
+		client->tail = (client->tail + 1) & (EVDEV_BUFFER_SIZE - 1);
 		retval += evdev_event_size();
 	}
 
@@ -300,11 +