On Fri, Sep 15, 2017 at 02:25:12PM +0100, Peter Robinson wrote:
On Fri, Sep 15, 2017 at 2:59 AM, Icenowy Zheng icenowy@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).
Maxime