Re: [PATCH 3/7] bus: add bus driver for accessing Allwinner A64 DE2

From: Jagan Teki
Date: Sat Apr 14 2018 - 06:36:25 EST


On Fri, Mar 16, 2018 at 11:23 PM, Icenowy Zheng <icenowy@xxxxxxx> wrote:
> The "Display Engine 2.0" (usually called DE2) on the Allwinner A64 SoC
> is different from the ones on other Allwinner SoCs. It requires a SRAM
> region to be claimed, otherwise all DE2 subblocks won't be accessible.
>
> Add a bus driver for the Allwinner A64 DE2 part which claims the SRAM
> region when probing.

Along with this bus driver, we also need
drivers/gpu/drm/sun4i/sun4i_drv.c which can usually drive the
pipelines like mixer0 and 1 are the cases for A64?

Jagan.

--
Jagan Teki
Senior Linux Kernel Engineer | Amarula Solutions
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.