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Message-ID: <CAMty3ZBOSXu=+jQpsdnykioDGsp=VphSnzQdDDs_hh3Y1FPKyg@mail.gmail.com> Date: Sat, 14 Apr 2018 15:55:08 +0530 From: Jagan Teki <jagan@...rulasolutions.com> To: Icenowy Zheng <icenowy@...c.io> Cc: Rob Herring <robh+dt@...nel.org>, Maxime Ripard <maxime.ripard@...tlin.com>, Chen-Yu Tsai <wens@...e.org>, devicetree <devicetree@...r.kernel.org>, linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, linux-kernel <linux-kernel@...r.kernel.org>, linux-clk@...r.kernel.org, linux-sunxi <linux-sunxi@...glegroups.com> Subject: Re: [PATCH 3/7] bus: add bus driver for accessing Allwinner A64 DE2 On Fri, Mar 16, 2018 at 11:23 PM, Icenowy Zheng <icenowy@...c.io> 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.
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