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authorLen Brown <len.brown@intel.com>2008-11-11 21:15:50 -0500
committerLen Brown <len.brown@intel.com>2008-11-11 21:15:50 -0500
commitf398778aa336a2919ee04ba45d915007230c6957 (patch)
treec7244cd1d4af8d99c861b21ebcaeabf23e355b9f /drivers/misc/sony-laptop.c
parent9b5a56ddfd615a27e3a0856ceae1592a24021e42 (diff)
parent2dba1b5d87e08a294da5cdfa4d32908000e9b085 (diff)
Merge branch 'video' into release
Conflicts: Documentation/kernel-parameters.txt Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc/sony-laptop.c')
-rw-r--r--drivers/misc/sony-laptop.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 06f07e19dc7..7bcb81002dc 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -1038,7 +1038,11 @@ static int sony_nc_add(struct acpi_device *device)
goto outinput;
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
+ if (!acpi_video_backlight_support()) {
+ printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
+ "controlled by ACPI video driver\n");
+ } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
+ &handle))) {
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);