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

[S, Venkatraman]

On Fri, Sep 21, 2012 at 10:45 PM, S, Venkatraman <svenkatr at ti.com> wrote:
> 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 ?

If you are adventurous, this can be a generic mmc DT binding instead
of restricting it to OMAP.