linux-kernel - Re: [PATCH 05/10] dmaengine: sun6i: Move number of pchans/vchans/request to device struct

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Date:   Mon, 4 Sep 2017 09:43:55 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Stefan Brüns <stefan.bruens@...h-aachen.de>
Cc:     linux-sunxi@...glegroups.com, devicetree@...r.kernel.org,
        dmaengine@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Code Kipper <codekipper@...il.com>,
        Andre Przywara <andre.przywara@....com>
Subject: Re: [PATCH 05/10] dmaengine: sun6i: Move number of
 pchans/vchans/request to device struct

On Mon, Sep 04, 2017 at 12:40:56AM +0200, Stefan Brüns wrote:
> Preparatory patch: If the same compatible is used for different SoCs which
> have a common register layout, but different number of channels, the
> channel count can no longer be stored in the config. Store it in the
> device structure instead.
> 
> Signed-off-by: Stefan Brüns <stefan.bruens@...h-aachen.de>

As stated already, we already are going to have a different
compatible, and this is not something that will change from one
instance to the other. Having code is therefore:
  A) Making the code more complex
  B) For no particular reason.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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