diff options
| author | Thomas Renninger <trenn@suse.de> | 2008-08-01 17:38:02 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-11-08 00:27:28 -0500 |
| commit | 540b8bb9c33935183ceb5bed466a42ad72b2af56 (patch) | |
| tree | ae338c3b374fd8e5812eb0d0ef94d88f1a84f1e7 /drivers/misc/sony-laptop.c | |
| parent | a598c82f39892069a8f6693459b1179fd9ef30e1 (diff) | |
sony-laptop: fingers off backlight if video.ko is serving this functionality
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc/sony-laptop.c')
| -rw-r--r-- | drivers/misc/sony-laptop.c | 6 |
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); |