video / backlight: add two APIs for drivers to use

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It is useful to get the backlight device's pointer and use it to set
backlight in some cases(the following patch will make use of it) so add
the two APIs and export them.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Aaron Lu 2016-04-27 20:45:02 +08:00 • committed by Rafael J. Wysocki

parent 04974df804

commit f6a4790a54

2 changed files with 31 additions and 14 deletions

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include/linux/backlight.h

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