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Date:   Mon, 18 Feb 2019 19:11:32 +0530
From:   Faiz Abbas <>
To:     Tony Lindgren <>
CC:     <>, <>,
        <>, <>,
        <>, <>,
        <>, <>, <>,
Subject: Re: [PATCH v2 3/8] dt-bindings: sdhci-omap: Add properties for using
 external dma

Hi Tony,

On 16/02/19 1:37 AM, Tony Lindgren wrote:
> * Faiz Abbas <> [190215 19:18]:
>> From: Chunyan Zhang <>
>> sdhci-omap can support both external dma controller via dmaengine
>> framework as well as ADMA which standard SD host controller
>> provides.
> Care to describe here also how to configure things for ADMA and
> instead of DMA? Just leave out dmas property?

That's correct. If dmas property is populated, then use external DMA.
Otherwise use ADMA/SDMA depending on what you read from the CAPS register.


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