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Date:   Mon, 18 Sep 2017 10:08:55 +0200
From:   Maxime Ripard <>
To:     Stefan Brüns <>
Cc:,,, Vinod Koul <>,,,
        Chen-Yu Tsai <>, Rob Herring <>,
        Code Kipper <>,
        Andre Przywara <>
Subject: Re: [PATCH v2 03/10] dmaengine: sun6i: Restructure code to allow
 extension for new SoCs

On Sun, Sep 17, 2017 at 05:19:49AM +0200, Stefan Brüns wrote:
> The current code mixes three distinct operations when transforming
> the slave config to register settings:
>   1. special handling of DMA_SLAVE_BUSWIDTH_UNDEFINED, maxburst == 0
>   2. range checking
>   3. conversion of raw to register values
> As the range checks depend on the specific SoC, move these out of the
> conversion to distinct operations.
> Signed-off-by: Stefan Brüns <>

Acked-by: Maxime Ripard <>


Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering

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