Messages in this thread | | | Subject | Re: [PATCH v2 3/8] dt-bindings: sdhci-omap: Add properties for using external dma | From | Faiz Abbas <> | Date | Mon, 18 Feb 2019 19:11:32 +0530 |
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Hi Tony,
On 16/02/19 1:37 AM, Tony Lindgren wrote: > * Faiz Abbas <faiz_abbas@ti.com> [190215 19:18]: >> From: Chunyan Zhang <zhang.chunyan@linaro.org> >> >> 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.
Thanks, Faiz
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