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path: root/drivers/acpi/video.c
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Diffstat (limited to 'drivers/acpi/video.c')
-rw-r--r--drivers/acpi/video.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 79409c9d2ad..42e1e842ee5 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -482,6 +482,7 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
+ int state;
arg0.integer.value = level;
@@ -490,6 +491,10 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
status = acpi_evaluate_object(device->dev->handle, "_BCM",
&args, NULL);
device->brightness->curr = level;
+ for (state = 2; state < device->brightness->count; state++)
+ if (level == device->brightness->levels[state])
+ device->backlight->props.brightness = state - 2;
+
return status;
}