Re: [PATCH 0/4 v6] drm: Add support of ARC PGU display controller

[Alexey Brodkin <Alexey.Brodkin@synopsys.com>]

Hi David,

On Tue, 2016-04-19 at 16:19 +0300, Alexey Brodkin wrote:
> This series add support of ARC PGU display controller.
> ARC PGU is a quite simple byte streamer that gets data from the framebuffer
> and pushes it to hte connected encoder (DP or HDMI).
> 
> It was tested on ARC SDP boards (axs101/103 in particular).
> 
> Note following series (v6) that introduces drm_connector_register_all()
> is a prerequisite now: https://lkml.org/lkml/2016/4/19/299
> 
> Changes v5 -> v6:
>  * "arc: Add our own implementation of fb_pgprotect()" was already applied to
>    ARC's tree and available in linux-next:
>    http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=e5e0a65cd20a7a892a87e6bd73bdc3d83726d725
> 
> Changes v4 -> v5:
>  * Removed encode node from DT bindings example (as suggested by Rob)
> 
> Changes v3 -> v4:
>  * Main driver author is now set properly (thanks Carlos for all your efforts)
>  * Implemented correct hsync and vsync setup (thanks Jose)
>  * Dummy call-backs were removed (as suggested by Daniel)
>  * Obsolete load()/unload() call-backs were removed (as suggested by Daniel)
>  * With above in mind we were able to adopt recently introduced
>    drm_connector_register_all()/drm_connector_unregister_all()
>  * Implemented setup of properties (uncached) for FB user-pages
>  * Minor clean-up in DT binding docs and axs10x_mb.dtsi
> 
> Changes v2 -> v3:
>  * Improved failure path if arcpgu_connector wasn't allocated.
>  * Fixed driver building as module.
>  * Implemented uncached mapping of user-space FB pages.
>  * Again updated DT bindings docs.
> 
> Changes v1 -> v2:
>  * Clean-up of DT bindings documentation.
>  * Added missing "pxlclk" clock in axs10x_mb.dtsi.

That's my first submission of a DRM driver and I'm wondering
which tree/branch should I use as a reference to rebase my
patches and send you a pull request?

Especially given there's a prerequisite which is still only in
linux-next: http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=54d2c2da0946368b96b63e6daed7920f3
681243e

Regards,
Alexey