Merge /spare/repo/linux-2.6/

118 files changed, 3004 insertions, 2040 deletions

diff --git a/drivers/acorn/block/fd1772.c b/drivers/acorn/block/fd1772.c
index 3cd2e968e96..c0a37d98b4f 100644
--- a/drivers/acorn/block/fd1772.c
+++ b/drivers/acorn/block/fd1772.c
@@ -1283,8 +1283,7 @@ static void do_fd_request(request_queue_t* q)
 	if (fdc_busy) return;
 	save_flags(flags);
 	cli();
-	while (fdc_busy)
-		sleep_on(&fdc_wait);
+	wait_event(fdc_wait, !fdc_busy);
 	fdc_busy = 1;
 	ENABLE_IRQ();
 	restore_flags(flags);
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 986410e7b48..ba13896cae4 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -133,9 +133,10 @@ config ACPI_HOTKEY
 	depends on ACPI_INTERPRETER
 	depends on EXPERIMENTAL
 	depends on !IA64_SGI_SN
-	default m
+	default n
 	help
-	ACPI generic hotkey
+	  Experimental consolidated hotkey driver.
+	  If you are unsure, say N.
 
 config ACPI_FAN
 	tristate "Fan"
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 0f45d45f05a..8162fd0c21a 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -26,6 +26,9 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
@@ -33,6 +36,9 @@
 #define ACPI_BUTTON_COMPONENT		0x00080000
 #define ACPI_BUTTON_DRIVER_NAME		"ACPI Button Driver"
 #define ACPI_BUTTON_CLASS		"button"
+#define ACPI_BUTTON_FILE_INFO		"info"
+#define ACPI_BUTTON_FILE_STATE		"state"
+#define ACPI_BUTTON_TYPE_UNKNOWN	0x00
 #define ACPI_BUTTON_NOTIFY_STATUS	0x80
 
 #define ACPI_BUTTON_SUBCLASS_POWER	"power"
@@ -64,6 +70,8 @@ MODULE_LICENSE("GPL");
 
 static int acpi_button_add (struct acpi_device *device);
 static int acpi_button_remove (struct acpi_device *device, int type);
+static int acpi_button_info_open_fs(struct inode *inode, struct file *file);
+static int acpi_button_state_open_fs(struct inode *inode, struct file *file);
 
 static struct acpi_driver acpi_button_driver = {
 	.name =		ACPI_BUTTON_DRIVER_NAME,
@@ -82,6 +90,179 @@ struct acpi_button {
 	unsigned long		pushed;
 };
 
+static struct file_operations acpi_button_info_fops = {
+	.open		= acpi_button_info_open_fs,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct file_operations acpi_button_state_fops = {
+	.open		= acpi_button_state_open_fs,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+/* --------------------------------------------------------------------------
+                              FS Interface (/proc)
+   -------------------------------------------------------------------------- */
+
+static struct proc_dir_entry	*acpi_button_dir;
+
+static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
+{
+	struct acpi_button	*button = (struct acpi_button *) seq->private;
+
+	ACPI_FUNCTION_TRACE("acpi_button_info_seq_show");
+
+	if (!button || !button->device)
+		return_VALUE(0);
+
+	seq_printf(seq, "type:                    %s\n", 
+		acpi_device_name(button->device));
+
+	return_VALUE(0);
+}
+
+static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
+{
+	return single_open(file, acpi_button_info_seq_show, PDE(inode)->data);
+}
+	
+static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
+{
+	struct acpi_button	*button = (struct acpi_button *) seq->private;
+	acpi_status		status;
+	unsigned long		state;
+
+	ACPI_FUNCTION_TRACE("acpi_button_state_seq_show");
+
+	if (!button || !button->device)
+		return_VALUE(0);
+
+	status = acpi_evaluate_integer(button->handle,"_LID",NULL,&state);
+	if (ACPI_FAILURE(status)) {
+		seq_printf(seq, "state:      unsupported\n");
+	}
+	else{
+		seq_printf(seq, "state:      %s\n", (state ? "open" : "closed")); 
+	}
+
+	return_VALUE(0);
+}
+
+static int acpi_button_state_open_fs(struct inode *inode, struct file *file)
+{
+	return single_open(file, acpi_button_state_seq_show, PDE(inode)->data);
+}
+
+static struct proc_dir_entry *acpi_power_dir;
+static struct proc_dir_entry *acpi_sleep_dir;
+static struct proc_dir_entry *acpi_lid_dir;
+
+static int
+acpi_button_add_fs (
+	struct acpi_device	*device)
+{
+	struct proc_dir_entry	*entry = NULL;
+	struct acpi_button	*button = NULL;
+
+	ACPI_FUNCTION_TRACE("acpi_button_add_fs");
+
+	if (!device || !acpi_driver_data(device))
+		return_VALUE(-EINVAL);
+
+	button = acpi_driver_data(device);
+
+	switch (button->type) {
+	case ACPI_BUTTON_TYPE_POWER:
+	case ACPI_BUTTON_TYPE_POWERF:
+		if (!acpi_power_dir)
+			acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, 
+				acpi_button_dir);
+		entry = acpi_power_dir;
+		break;
+	case ACPI_BUTTON_TYPE_SLEEP:
+	case ACPI_BUTTON_TYPE_SLEEPF:
+		if (!acpi_sleep_dir)
+			acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, 
+				acpi_button_dir);
+		entry = acpi_sleep_dir;
+		break;
+	case ACPI