misc: dell-laptop should depend on POWER_SUPPLY

dell-laptop makes use of the power supply class information to choose
which backlight interface to change. Add a depends on it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 5607319..c64e679 100644 (file)
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -217,6 +217,7 @@ config DELL_LAPTOP
        depends on EXPERIMENTAL
        depends on BACKLIGHT_CLASS_DEVICE
        depends on RFKILL
+       depends on POWER_SUPPLY
        default n
        ---help---
        This driver adds support for rfkill and backlight control to Dell