Pull release into acpica branch

87 files changed, 4073 insertions, 3013 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 3738d173f9a..9f2352bd834 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -20,7 +20,6 @@
 #include <linux/major.h>
 #include <linux/smp_lock.h>
 #include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
 #include <linux/compat.h>
 
 struct evdev {
@@ -566,6 +565,7 @@ static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned lon
 						case EV_LED: bits = dev->ledbit; max = LED_MAX; break;
 						case EV_SND: bits = dev->sndbit; max = SND_MAX; break;
 						case EV_FF:  bits = dev->ffbit;  max = FF_MAX;  break;
+						case EV_SW:  bits = dev->swbit;  max = SW_MAX;  break;
 						default: return -EINVAL;
 					}
 					bit_to_user(bits, max);
@@ -580,6 +580,9 @@ static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned lon
 				if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0)))
 					bit_to_user(dev->snd, SND_MAX);
 
+				if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0)))
+					bit_to_user(dev->sw, SW_MAX);
+
 				if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
 					int len;
 					if (!dev->name) return -ENOENT;
@@ -662,6 +665,7 @@ static struct file_operations evdev_fops = {
 static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
 {
 	struct evdev *evdev;
+	struct class_device *cdev;
 	int minor;
 
 	for (minor = 0; minor < EVDEV_MINORS && evdev_table[minor]; minor++);
@@ -687,11 +691,13 @@ static struct input_handle *evdev_connect(struct input_handler *handler, struct
 
 	evdev_table[minor] = evdev;
 
-	devfs_mk_cdev(MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor),
-			S_IFCHR|S_IRUGO|S_IWUSR, "input/event%d", minor);
-	class_device_create(input_class,
+	cdev = class_device_create(&input_class, &dev->cdev,
 			MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor),
-			dev->dev, "event%d", minor);
+			dev->cdev.dev, evdev->name);
+
+	/* temporary symlink to keep userspace happy */
+	sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
+			  evdev->name);
 
 	return &evdev->handle;
 }
@@ -701,9 +707,9 @@ static void evdev_disconnect(struct input_handle *handle)
 	struct evdev *evdev = handle->private;
 	struct evdev_list *list;
 
-	class_device_destroy(input_class,
+	sysfs_remove_link(&input_class.subsys.kset.kobj, evdev->name);
+	class_device_destroy(&input_class,
 			MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + evdev->minor));
-	devfs_remove("input/event%d", evdev->minor);
 	evdev->exist = 0;
 
 	if (evdev->open) {
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ab09cf4093e..caac6d63d46 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/sched.h>	/* HZ */
 
 /*#include <asm/io.h>*/
 
@@ -338,14 +339,20 @@ static struct gameport_event *gameport_get_event(void)
 	return event;
 }
 
-static void gameport_handle_events(void)
+static void gameport_handle_event(void)
 {
 	struct gameport_event *event;
 	struct gameport_driver *gameport_drv;
 
 	down(&gameport_sem);
 
-	while ((event = gameport_get_event())) {
+	/*
+	 * Note that we handle only one event here to give swsusp
+	 * a chance to freeze kgameportd thread. Gameport events
+	 * should be pretty rare so we are not concerned about
+	 * taking performance hit.
+	 */
+	if ((event = gameport_get_event())) {
 
 		switch (event->type) {
 			case GAMEPORT_REGISTER_PORT:
@@ -432,7 +439,7 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent)
 static int gameport_thread(void *nothing)
 {
 	do {
-		gameport_handle_events();
+		gameport_handle_event();
 		wait_event_interruptible(gameport_wait,
 			kthread_should_stop() || !list_empty(&gameport_event_list));
 		try_to_freeze();
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 88636a20452..bdd2a7fc268 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -22,12 +22,12 @@
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
 MODULE_DESCRIPTION("Input core");
 MODULE_LICENSE("GPL");
 
+EXPORT_SYMBOL(input_allocate_device);
 EXPORT_SYMBOL(input_register_device);
 EXPORT_SYMBOL(input_unregister_device);
 EXPORT_SYMBOL(input_register_handler);
@@ -39,7 +39,7 @@ EXPORT_SYMBOL(input_close_device);
 EXPORT_SYMBOL(input_accept_process);
 EXPORT_SYMBOL(input_flush_device);
 EXPORT_SYMBOL(input_event);
-EXPORT_SYMBOL(input_class);
+EXPORT_SYMBOL_GPL(input_class);
 
 #define INPUT_DEVICES	256
 
@@ -308,6 +308,7 @@ static struct input_device_id *input_match_device(struct input_device_id *id, st
 		MATCH_BIT(ledbit, LED_MAX);
 		MATCH_BIT(sndbit, SND_MAX);
 		MATCH_BIT(ffbit,  FF_MAX);
+		MATCH_BIT(swbit,  SW_MAX);
 
 		return id;
 	}
@@ -315,124 +316,21 @@ static struct input_device_id *input_match_device(struct input_device_id *id, st
 	return NULL;
 }
 
-
-/*
- * Input hotplugging interface - loading event handlers based on
- * device bitfields.
- */
-
-#ifdef CONFIG_HOTPLUG
-
-/*
- * Input hotplugging invokes what /proc/sys/kernel/hotplug says
- * (normally /sbin/hotplug) when input devices get added or removed.
- *
- * This invokes a user mode policy agent, typically helping to load driver
- * or other modules, configure the device, and more.  Drivers can provide
- * a MODULE_DEVICE_TABLE to help with module loading subtasks.
- *
- */
-
-#define SPRINTF_BIT_A(bit, name, max) \
-	do { \
-		envp[i++] = scratch; \
-		scratch += sprintf(scratch, name); \
-		for (j = NBITS(max) - 1; j >= 0; j--) \
-			if (dev->bit[j]) break; \
-		for (; j >= 0; j--) \
-			scratch += sprintf(scratch, "%lx ", dev->bit[j]); \
-		scratch++; \
-	} while (0)
-
-#define SPRINTF_BIT_A2(bit, name, max, ev) \
-	do { \
-		if (test_bit(ev, dev->evbit)) \
-			SPRINTF_BIT_A(bit, name, max); \
-	} while (0)
-
-static void input_call_hotplug(char *verb, struct input_dev *dev)
+static int input_print_bitmap(char *buf, int buf_size, unsigned long *bitmap, int max)
 {
-	char *argv[3], **envp, *buf, *scratch;
-	int i = 0, j, value;
-
-	if (!hotplug_path[0]) {
-		printk(KERN_ERR "input.c: calling hotplug without a hotplug agent defined\n");
-		return;
-	}
-	if (in_interrupt()) {
-		printk(KERN_ERR "input.c: calling hotplug from interrupt\n");
-		return;
-	}
-	if (!current->fs->root) {
-		printk(KERN_WARNING "input.c: calling hotplug without valid filesystem\n");
-		return;
-	}
-	if (!(envp = (char **) kmalloc(20 * sizeof(char *), GFP_KERNEL))) {
-		printk(KERN_ERR "input.c: not enough memory allocating hotplug environment\n");
-		return;
-	}
-	if (!(buf = kmalloc(1024, GFP_KERNEL))) {
-		kfree (envp);
-		printk(KERN_ERR "input.c: not enough memory allocating hotplug environment\n");
-		return;
-	}
-
-	argv[0] = hotplug_path;
-	argv[1] = "input";
-	argv[2] = NULL;
-
-	envp[i++] = "HOME=/";
-	envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-
-	scratch = buf;
-
-	envp[i++] = scratch;
-	scratch += sprintf(scratch, "ACTION=%s", verb) + 1;
-
-	envp[i++] = scratch;
-	scratch += sprintf(scratch, "PRODUCT=%x/%x/%x/%x",
-		dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version) + 1;
-
-	if (dev->name) {
-		envp[i++] = scratch;
-		scratch += sprintf(scratch, "NAME=%s", dev->name) + 1;
-	}
-
-	if (dev->phys) {
-		envp[i++] = scratch;
-		scratch += sprintf(scratch, "PHYS=%s", dev->phys) + 1;
-	}
-
-	SPRINTF_BIT_A(evbit, "EV=", EV_MAX);
-	SPRINTF_BIT_A2(keybit, "KEY=", KEY_MAX, EV_KEY);
-	SPRINTF_BIT_A2(relbit, "REL=", REL_MAX, EV_REL);
-	SPRINTF_BIT_A2(absbit, "ABS=", ABS_MAX, EV_ABS);
-	SPRINTF_BIT_A2(mscbit, "MSC=", MSC_MAX, EV_MSC);
-	SPRINTF_BIT_A2(ledbit, "LED=", LED_MAX, EV_LED);
-	SPRINTF_BIT_A2(sndbit, "SND=", SND_MAX, EV_SND);
-	SPRINTF_BIT_A2(ffbit,  "FF=",  FF_MAX, EV_FF);
-	SPRINTF_BIT_A2(swbit,  "SW=",  SW_MAX, EV_SW);
-
-	envp[i++] = NULL;
-
-#ifdef INPUT_DEBUG
-	printk(KERN_DEBUG "input.c: calling %s %s [%s %s %s %s %s]\n",
-		argv[0], argv[1], envp[0], envp[1], envp[2], envp[3], envp[4]);
-#endif
-
-	value = call_usermodehelper(argv [0], argv, envp, 0);
+	int i;
+	int len = 0;
 
-	kfree(buf);
-	kfree(envp);
+	for (i = NBITS(max) - 1; i > 0; i--)
+		if (bitmap[i])
+			break;
 
-#ifdef INPUT_DEBUG
-	if (value != 0)
-		printk(KERN_DEBUG "input.c: hotplug returned %d\n", value);
-#endif
+	for (; i >= 0; i--)
+		len += snprintf(buf + len, max(buf_size - len, 0),
+				"%lx%s", bitmap[i], i > 0 ? " " : "");
+	return len;
 }
 
-#endif
-
 #ifdef CONFIG_PROC_FS
 
 static struct proc_dir_entry *proc_bus_input_dir;
@@ -454,37 +352,39 @@ static unsigned int input_devices_poll(struct file *file, poll_table *wait)
 	return 0;
 }
 
-#define SPRINTF_BIT_B(bit, name, max) \
-	do { \
-		len += sprintf(buf + len, "B: %s", name); \
-		for (i = NBITS(max) - 1; i >= 0; i--) \
-			if (dev->bit[i]) break; \
-		for (; i >= 0; i--) \
-			len += sprintf(buf + len, "%lx ", dev->bit[i]); \
-		len += sprintf(buf + len, "\n"); \
+#define SPRINTF_BIT(ev, bm)						\
+	do {								\
+		len += sprintf(buf + len, "B: %s=", #ev);		\
+		len += input_print_bitmap(buf + len, INT_MAX,		\
+					dev->bm##bit, ev##_MAX);	\
+		len += sprintf(buf + len, "\n");			\
 	} while (0)
 
-#define SPRINTF_BIT_B2(bit, name, max, ev) \
-	do { \
-		if (test_bit(ev, dev->evbit)) \
-			SPRINTF_BIT_B(bit, name, max); \
+#define TEST_AND_SPRINTF_BIT(ev, bm)					\
+	do {								\
+		if (test_bit(EV_##ev, dev->evbit))			\
+			SPRINTF_BIT(ev, bm);				\
 	} while (0)
 
 static int input_devices_read(char *buf, char **start, off_t pos, int count, int *eof, void *data)
 {
 	struct input_dev *dev;
 	struct input_handle *handle;
+	const char *path;
 
 	off_t at = 0;
-	int i, len, cnt = 0;
+	int len, cnt = 0;
 
 	list_for_each_entry(dev, &input_dev_list, node) {
 
+		path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
+
 		len = sprintf(buf, "I: Bus=%04x Vendor=%04x Product=%04x Version=%04x\n",
 			dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version);
 
 		len += sprintf(buf + len, "N: Name=\"%s\"\n", dev->name ? dev->name : "");
 		len += sprintf(buf + len, "P: Phys=%s\n", dev->phys ? dev->phys : "");
+		len += sprintf(buf + len, "S: Sysfs=%s\n", path ? path : "");
 		len += sprintf(buf + len, "H: Handlers=");
 
 		list_for_each_entry(handle, &dev->h_list, d_node)
@@ -492,15 +392,15 @@ static int input_devices_read(char *buf, char **start, off_t pos, int count, int
 
 		len += sprintf(buf + len, "\n");
 
-		SPRINTF_BIT_B(evbit, "EV=", EV_MAX);
-		SPRINTF_BIT_B2(keybit, "KEY=", KEY_MAX, EV_KEY);
-		SPRINTF_BIT_B2(relbit, "REL=", REL_MAX, EV_REL);
-		SPRINTF_BIT_B2(absbit, "ABS=", ABS_MAX, EV_ABS);
-		SPRINTF_BIT_B2(mscbit, "MSC=", MSC_MAX, EV_MSC);
-		SPRINTF_BIT_B2(ledbit, "LED=", LED_MAX, EV_LED);
-		SPRINTF_BIT_B2(sndbit, "SND=", SND_MAX, EV_SND);
-		SPRINTF_BIT_B2(ffbit,  "FF=",  FF_MAX, EV_FF);
-		SPRINTF_BIT_B2(swbit,  "SW=",  SW_MAX, EV_SW);
+		SPRINTF_BIT(EV, ev);
+		TEST_AND_SPRINTF_BIT(KEY, key);
+		TEST_AND_SPRINTF_BIT(REL, rel);
+		TEST_AND_SPRINTF_BIT(ABS, abs);
+		TEST_AND_SPRINTF_BIT(MSC, msc);
+		TEST_AND_SPRINTF_BIT(LED, led);
+		TEST_AND_SPRINTF_BIT(SND, snd);
+		TEST_AND_SPRINTF_BIT(FF, ff);
+		TEST_AND_SPRINTF_BIT(SW, sw);
 
 		len += sprintf(buf + len, "\n");
 
@@ -515,6 +415,8 @@ static int input_devices_read(char *buf, char **start, off_t pos, int count, int
 			if (cnt >= count)
 				break;
 		}
+
+		kfree(path);
 	}
 
 	if (&dev->node == &input_dev_list)
@@ -605,15 +507,234 @@ static inline int input_proc_init(void) { return 0; }
 static inline void input_proc_exit(void) { }
 #endif
 
-void input_register_device(struct input_dev *dev)
+#define INPUT_DEV_STRING_ATTR_SHOW(name)					\
+static ssize_t input_dev_show_##name(struct class_device *dev, char *buf)	\
+{										\
+	struct input_dev *input_dev = to_input_dev(dev);			\
+	int retval;								\
+										\
+	retval = down_interruptible(&input_dev->sem);				\
+	if (retval)								\
+		return retval;							\
+										\
+	retval = sprintf(buf, "%s\n", input_dev->name ? input_dev->name : "");	\
+										\
+	up(&input