Messages in this thread | | | Date | Mon, 18 Feb 2019 08:28:14 -0800 | From | Tony Lindgren <> | Subject | Re: [PATCH v2 3/8] dt-bindings: sdhci-omap: Add properties for using external dma |
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* Tony Lindgren <tony@atomide.com> [190218 16:20]: > * Faiz Abbas <faiz_abbas@ti.com> [190218 13:38]: > > 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. > > OK thanks.
So I guess the dma properties should be under optional properties in the binding doc then.
Regards,
Tony
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