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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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