Re: [PATCHv2 1/4] video: mmp display subsystem

Hi, Laurent,

On Sat, Sep 1, 2012 at 2:25 PM, Laurent Pinchart
[off-list ref] wrote:

Hi Zhou,

On Thursday 30 August 2012 10:20:22 Zhou Zhu wrote:

quoted

Added 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 ovly 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 ovly.

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.

You might want to look at the generic panel framework RFC that I have posted
recently (http://lwn.net/Articles/512363/).

I am very interesting in your idea of generic panel framework. I will
review it soon.
Also I will update my drivers to support this generic panel interface
later after your patch is merged.

-- 
Thanks,
-Zhou