[RFC PATCH 08/13] mmc: omap_hsmmc: limit max_segs with the EDMA DMAC

S, Venkatraman svenkatr at ti.com
Fri Sep 21 13:15:29 EDT 2012

On Thu, Sep 20, 2012 at 8:13 PM, Matt Porter <mporter at ti.com> wrote:
> The EDMA DMAC has a hardware limitation that prevents supporting
> scatter gather lists with any number of segments. Since the EDMA
> DMA Engine driver sets the maximum segments to 16, we do the
> same.
> Note: this can be removed once the DMA Engine API supports an
> API to query the DMAC's segment limitations.

I wouldn't want to bind the properties of EDMA to omap_hsmmc as this patch
suggests. Why don't we have a max_segs property, which when explicitly specified
in DT, will override the default ?

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