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SubjectRe: [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata
* Ulf Hansson <ulf.hansson@linaro.org> [180214 09:53]:
> On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> > DRA74x EVM Rev H EVM comes with revision 2.0 silicon. However, earlier
> > versions of EVM can come with either revision 1.1 or revision 1.0 of
> > silicon.
> >
> > The device-tree file is written to support rev 2.0 of silicon.
> > pdata-quirks are used to then override the settings needed for
> > PG 1.1 silicon.
> >
> > PG 1.1 silicon has limitations w.r.t frequencies at which MMC1/2/3
> > can operate as well as different IOdelay numbers.
>
> I fail to understand the need for platform data. Why can't DT be used
> for the older revisions as well?

Maybe the silicon revision is not available via soc_device_match()?

Regards,

Tony

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