Pull platform-drivers into test branch

4 files changed, 39 insertions, 12 deletions

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index bfae3ffff13c..7cc54aacd4c0 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1401,7 +1401,7 @@ static int __init asus_acpi_init(void)
                 return result;
         }
 
-        asus_backlight_device = backlight_device_register("asus", NULL,
+        asus_backlight_device = backlight_device_register("asus",NULL,NULL,
                                                           &asus_backlight_data);
         if (IS_ERR(asus_backlight_device)) {
                 printk(KERN_ERR "Could not register asus backlight device\n");
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 1e7abef404b0..130cc8c37e22 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -1714,7 +1714,7 @@ static struct backlight_properties ibm_backlight_data = {
 
 static int brightness_init(void)
 {
-        ibm_backlight_device = backlight_device_register("ibm", NULL,
+        ibm_backlight_device = backlight_device_register("ibm", NULL, NULL,
                                                          &ibm_backlight_data);
         if (IS_ERR(ibm_backlight_device)) {
                 printk(IBM_ERR "Could not register backlight device\n");
@@ -2503,7 +2503,7 @@ static int __init setup_notify(struct ibm_struct *ibm)
                        ibm->name, status);
                 return -ENODEV;
         }
-
+        ibm->notify_installed = 1;
         return 0;
 }
 
@@ -2580,7 +2580,6 @@ static int __init ibm_init(struct ibm_struct *ibm)
                 ret = setup_notify(ibm);
                 if (ret < 0)
                         return ret;
-                ibm->notify_installed = 1;
         }
 
         return 0;
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 2f35f891593f..88aeccbafaaf 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -590,7 +590,8 @@ static int __init toshiba_acpi_init(void)
                         remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
         }
 
-        toshiba_backlight_device = backlight_device_register("toshiba", NULL,
+        toshiba_backlight_device = backlight_device_register("toshiba",NULL,
+                                                NULL,
                                                 &toshiba_backlight_data);
         if (IS_ERR(toshiba_backlight_device)) {
                 printk(KERN_ERR "Could not register toshiba backlight device\n");
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 53a9eb015d6b..eb5141f9ef8f 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -3,6 +3,7 @@
  *
  *  Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
  *  Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
+ *  Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -47,11 +48,11 @@
 #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT   0x83
 #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT   0x84
 
-#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS      0x82
-#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS        0x83
-#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS        0x84
-#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS       0x85
-#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF           0x86
+#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS      0x85
+#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS        0x86
+#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS        0x87
+#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS       0x88
+#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF           0x89
 
 #define ACPI_VIDEO_HEAD_INVALID         (~0u - 1)
 #define ACPI_VIDEO_HEAD_END             (~0u)
@@ -1505,8 +1506,34 @@ static int
 acpi_video_get_next_level(struct acpi_video_device *device,
                           u32 level_current, u32 event)
 {
-        /*Fix me */
-        return level_current;
+        int min, max, min_above, max_below, i, l;
+        max = max_below = 0;
+        min = min_above = 255;
+        for (i = 0; i < device->brightness->count; i++) {
+                l = device->brightness->levels[i];
+                if (l < min)
+                        min = l;
+                if (l > max)
+                        max = l;
+                if (l < min_above && l > level_current)
+                        min_above = l;
+                if (l > max_below && l < level_current)
+                        max_below = l;
+        }
+
+        switch (event) {
+        case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:
+                return (level_current < max) ? min_above : min;
+        case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:
+                return (level_current < max) ? min_above : max;
+        case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:
+                return (level_current > min) ? max_below : min;
+        case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS:
+        case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:
+                return 0;
+        default:
+                return level_current;
+        }
 }
 
 static void