i.MX8qxp Display Controller display engine consists of all processing
units that operate in a display clock domain. Add minimal feature
support with FrameGen and TCon so that the engine can output display
timings. The display engine driver as a master binds FrameGen and
TCon drivers as components. While at it, the display engine driver
is a component to be bound with the upcoming DRM driver.
Signed-off-by: Liu Ying <victor.liu@xxxxxxx>
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v4:
* Use regmap to define register map for all registers. (Dmitry)
* Use regmap APIs to access registers. (Dmitry)
* Inline some small functions. (Dmitry)