在 2017-09-15 21:35，Maxime Ripard 写道：
On Fri, Sep 15, 2017 at 02:25:12PM +0100, Peter Robinson wrote:
On Fri, Sep 15, 2017 at 2:59 AM, Icenowy Zheng <icen...@aosc.io>
wrote:
> This patchset is for Allwinner DE2 HDMI SimpleFB support.
>
> The framebuffer initialized by the Allwinner DE2 driver can be
> passed by to the kernel as simplefb, and this can enable the
> kernel to display graphics without having full DE2 driver.
>
> Add the suppot of simplefb in DE2 code.
>
> The code to find a simplefb with sunxi extension and a suitable
> pipeline is extracted to a new source file in video/sunxi/.
>
> An option is added for device tree simplefb, and furtherly
> other simplefb support code should also be converted to it.
There was a generic simplefb driver recently added [1], is it worth
basing it on that?
[1] https://lists.denx.de/pipermail/u-boot/2017-September/306273.html
This is a simplefb "client", it uses a display that has already been
initialized. What Icenowy is working on is a "provider", ie it
initializes the display in order for other components to reuse it
(Linux).
As I know, now FreeBSD and NetBSD are also going to use the simplefb.
Maxime
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