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RK618 provides a complete set of display interface to support very flexible applications as follows: - 2 RGB display input interface with double data rate - 1 LVDS display output interface with double channels - 1 MIPI display output interface with 4 data lanes - 1 HDMI display output interface - 1 RGB display output interface shared with LVDS - 1 RGB display output interface shared with RGB display input interface VIF is used to LCDC SDR/DDR timing reconstruction. SCALER is a synchronous parallel RGB frame converter for different resolution. It is used to realize dual display function from one display source. It can be used like VIF for LCDC SDR timing reconstruction only. DITHER is used for converting 24bit RGB888 to 18bit RGB666 with FRC dither down. Change-Id: I5b25e64c283bd84f85d7d7686bee6d940df44910 Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>