• Zhou Zhu's avatar
    video: mmp display subsystem · 59393bb9
    Zhou Zhu authored
    Add mmp display subsystem to support Marvell MMP display controllers.
    
    This subsystem contains 4 parts:
    --fb folder
    --core.c
    --hw folder
    --panel folder
    
    1. fb folder contains implementation of fb.  fb get path and overlay
       from common interface and operates on these structures.
    
    2. core.c provides common interface for a hardware abstraction.  Major
       parts of this interface are:
    
       a) Path: path is a output device connected to a panel or HDMI TV.  Main
          operations of the path is set/get timing/output color.  fb operates
          output device through path structure.
    
       b) Ovly: Ovly is a buffer shown on the path.
    
          Ovly describes frame buffer and its source/destination size, offset,
          input color, buffer address, z-order, and so on.  Each fb device maps
          to one overlay.
    
    3. hw folder contains implementation of hardware operations defined by
       core.c.  It registers paths for fb use.
    
    4. panel folder contains implementation of panels.  It's connected to
       path.  Panel drivers would also regiester panels and linked to path
       when probe.
    Signed-off-by: default avatarZhou Zhu <zzhu3@marvell.com>
    Signed-off-by: default avatarLisa Du <cldu@marvell.com>
    Cc: Guoqing Li <ligq@marvell.com>
    Acked-by: default avatarHaojian Zhuang <haojian.zhuang@gmail.com>
    Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    59393bb9
core.c 6.37 KB