Re: [PATCH v5 4/8] dt-bindings: memory: tegra: Add external memory controller binding for Tegra210

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On Tue, Mar 10, 2020 at 07:35:01PM +0300, Dmitry Osipenko wrote:
> 10.03.2020 18:19, Thierry Reding пишет:
> > From: Joseph Lo <josephl@xxxxxxxxxx>
> > 
> > Add the binding document for the external memory controller (EMC) which
> > communicates with external LPDDR4 devices. It includes the bindings of
> > the EMC node and a sub-node of EMC table which under the reserved memory
> > node. The EMC table contains the data of the rates that EMC supported.
> > 
> > Signed-off-by: Joseph Lo <josephl@xxxxxxxxxx>
> > Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
> > ---
> > Changes in v5:
> > - convert to dt-schema
> 
> ...
> 
> > +  memory-region:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description:
> > +      phandle to a reserved memory region describing the table of EMC
> > +      frequencies trained by the firmware
> 
> Shouldn't the table's format be documented?

I'm not sure that's needed here. A proprietary bootloader creates this
table and the kernel has a structure for it. Describing the exact layout
in the device tree binding seems a bit excessive.

Thierry

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