1. bd40e2d exynos: video: Move driver files into their own directory by Simon Glass · Sun Feb 21 21:08:38 2016 -0700[Renamed from drivers/video/exynos_pwm_bl.c]
  2. d79de1d Add GPL-2.0+ SPDX-License-Identifier to source files by Wolfgang Denk · Mon Jul 08 09:37:19 2013 +0200
  3. c8a3178 video: support exynos pwm backlight driver by Donghwa Lee · Mon Jul 02 01:16:13 2012 +0000