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2012-05-29backlight: add LM3533 backlight driverJohan Hovold
Add sub-driver for the backlights on National Semiconductor / TI LM3533 lighting power chips. The chip provides 256 brightness levels and ambient-light-sensor and pwm input control. [akpm@linux-foundation.org: fix warning] [akpm@linux-foundation.org: fix the type of `mode'] Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Rob Landley <rob@landley.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>