On Wed, Dec 14, 2016 at 11:02:33AM +0800, Chen-Yu Tsai wrote: > On Wed, Dec 14, 2016 at 5:16 AM, Icenowy Zheng <icen...@aosc.xyz> wrote: > > > > > > 14.12.2016, 04:29, "Simon Glass" <s...@chromium.org>: > >> Hi, > >> > >> On 12 December 2016 at 19:36, Jernej Skrabec <jernej.skra...@siol.net> > >> wrote: > >>> This patch series add support for HDMI output. Support for other, > >>> newer, SoCs, which also uses DE2 and same or similar HDMI controller > >>> and PHY can be easily added later (A83T/A64/H5/R40). Current driver > >>> can also be easily extended with TV out support, just like video > >>> driver for older Allwinner SoCs. > >>> > >>> While driver works, I would like to get few opinions first. > >>> - From what I understand, drivers which supports DT are preferred. > >>> Would it be better to rewrite this driver to support device tree? > >> > >> Yes I think so, and in fact it should use driver model also. > >> > >> The rockchip driver provides a reasonable example of how to split the > >> driver up as you suggest below. The VIDEO driver provides the > >> top-level video interface, DISPLAY drivers provide display output for > >> the video, and you have PANEL as well for receiving the display > >> output. VIDCONSOLE works automatically to display text. > >> > >> I actually took a bit of a look at this a few weeks ago so am happy to > >> help with review or discussions. > > > > Yes, I think go to Driver Model is also valuable, as Allwinner's display > > parts > > are really in reusable components. > > > > In addition, Driver Model provides the possibility to use EFI GOP, which can > > be a more standardized replacement of SimpleFB, especially for OSes other > > than Linux. (For example, Windows, if we can really get it running ;-) ) > > We're going to use EFI now? Doesn't EFI mean we have to leave another bit > of firmware in memory running under the OS? What about PSCI and ATF on > ARMv8?
Until EFI on A64 on U-boot is a real thing, I don't really care to be honest. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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