drm/i915: more conversion from connector_list walk to encoder_list

[safe/jmp/linux-2.6] / drivers / acpi / video.c

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 6e9b491..cbe6f39 100644 (file)
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -327,7 +327,7 @@ static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
                        int level);
 static int acpi_video_device_lcd_get_level_current(
                        struct acpi_video_device *device,
-                       unsigned long long *level);
+                       unsigned long long *level, int init);
 static int acpi_video_get_next_level(struct acpi_video_device *device,
                                     u32 level_current, u32 event);
 static int acpi_video_switch_brightness(struct acpi_video_device *device,
@@ -345,7 +345,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
        struct acpi_video_device *vd =
                (struct acpi_video_device *)bl_get_data(bd);
 
-       if (acpi_video_device_lcd_get_level_current(vd, &cur_level))
+       if (acpi_video_device_lcd_get_level_current(vd, &cur_level, 0))
                return -EINVAL;
        for (i = 2; i < vd->brightness->count; i++) {
                if (vd->brightness->levels[i] == cur_level)
@@ -414,7 +414,7 @@ static int video_get_cur_state(struct thermal_cooling_device *cooling_dev, unsig
        unsigned long long level;
        int offset;
 
-       if (acpi_video_device_lcd_get_level_current(video, &level))
+       if (acpi_video_device_lcd_get_level_current(video, &level, 0))
                return -EINVAL;
        for (offset = 2; offset < video->brightness->count; offset++)
                if (level == video->brightness->levels[offset]) {
@@ -609,7 +609,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 
 static int
 acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
-                                       unsigned long long *level)
+                                       unsigned long long *level, int init)
 {
        acpi_status status = AE_OK;
        int i;
@@ -633,10 +633,16 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
                                        device->brightness->curr = *level;
                                        return 0;
                        }
-                       /* BQC returned an invalid level. Stop using it.  */
-                       ACPI_WARNING((AE_INFO, "%s returned an invalid level",
-                                               buf));
-                       device->cap._BQC = device->cap._BCQ = 0;
+                       if (!init) {
+                               /*
+                                * BQC returned an invalid level.
+                                * Stop using it.
+                                */
+                               ACPI_WARNING((AE_INFO,
+                                             "%s returned an invalid level",
+                                             buf));
+                               device->cap._BQC = device->cap._BCQ = 0;
+                       }
                } else {
                        /* Fixme:
                         * should we return an error or ignore this failure?
@@ -892,7 +898,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
        if (!device->cap._BQC)
                goto set_level;
 
-       result = acpi_video_device_lcd_get_level_current(device, &level_old);
+       result = acpi_video_device_lcd_get_level_current(device, &level_old, 1);
        if (result)
                goto out_free_levels;
 
@@ -903,7 +909,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
        if (result)
                goto out_free_levels;
 
-       result = acpi_video_device_lcd_get_level_current(device, &level);
+       result = acpi_video_device_lcd_get_level_current(device, &level, 0);
        if (result)
                goto out_free_levels;
 
@@ -992,6 +998,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
        }
 
        if (acpi_video_backlight_support()) {
+               struct backlight_properties props;
                int result;
                static int count = 0;
                char *name;
@@ -1004,12 +1011,14 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
                        return;
 
                sprintf(name, "acpi_video%d", count++);
-               device->backlight = backlight_device_register(name,
-                       NULL, device, &acpi_backlight_ops);
+               memset(&props, 0, sizeof(struct backlight_properties));
+               props.max_brightness = device->brightness->count - 3;
+               device->backlight = backlight_device_register(name, NULL, device,
+                                                             &acpi_backlight_ops,
+                                                             &props);
                kfree(name);
                if (IS_ERR(device->backlight))
                        return;
-               device->backlight->props.max_brightness = device->brightness->count-3;
 
                result = sysfs_create_link(&device->backlight->dev.kobj,
                                           &device->dev->dev.kobj, "device");
@@ -1996,7 +2005,7 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
                goto out;
 
        result = acpi_video_device_lcd_get_level_current(device,
-                                                        &level_current);
+                                                        &level_current, 0);
        if (result)
                goto out;