Messages in this thread |  | | From | Ulf Hansson <> | Date | Wed, 14 Feb 2018 10:53:14 +0100 | Subject | Re: [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata |
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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?
> > Add support in sdhci-omap driver to get platform data if available > (added using pdata quirks) and override the data (max-frequency and > iodelay data) obtained from device tree.
[...]
Kind regards Uffe
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