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SubjectRe: [PATCH 2/2] dt-binding: spi: Document Renesas R-Car RPC controller bindings
On Mon, 19 Nov 2018 14:49:31 +0100
Marek Vasut <marek.vasut@gmail.com> wrote:

> On 11/19/2018 11:01 AM, Mason Yang wrote:
> > Document the bindings used by the Renesas R-Car D3 RPC controller.
> >
> > Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
> > ---
> > .../devicetree/bindings/spi/spi-renesas-rpc.txt | 33 ++++++++++++++++++++++
> > 1 file changed, 33 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
> >
> > diff --git a/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt b/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
> > new file mode 100644
> > index 0000000..8286cc8
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
> > @@ -0,0 +1,33 @@
> > +Renesas R-Car D3 RPC controller Device Tree Bindings
> > +----------------------------------------------------
> > +
> > +Required properties:
> > +- compatible: should be "renesas,rpc-r8a77995"
> > +- #address-cells: should be 1
> > +- #size-cells: should be 0
> > +- reg: should contain 2 entries, one for the registers and one for the direct
> > + mapping area
> > +- reg-names: should contain "rpc_regs" and "dirmap"
> > +- interrupts: interrupt line connected to the RPC SPI controller
>
> Do you also plan to support the RPC HF mode ? And if so, how would that
> look in the bindings ?

Not sure this approach is still accepted, but that's how we solved the
problem for the flexcom block [1].

[1]https://elixir.bootlin.com/linux/v4.20-rc3/source/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt

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