linux-kernel - Re: [PATCH 1/2] dt-bindings: memory: Renesas RPC-IF: Add support for RZ/G2 Series

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Message-ID: <CAHCN7xL96mU4rdRUaog5YaokWyYb23zbFu_9X3gfVrgf6NM4PQ@mail.gmail.com>
Date:   Sat, 2 Jan 2021 05:31:23 -0600
From:   Adam Ford <aford173@...il.com>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "aford@...conembedded.com" <aford@...conembedded.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Sergei Shtylyov <sergei.shtylyov@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/2] dt-bindings: memory: Renesas RPC-IF: Add support for
 RZ/G2 Series

On Sat, Jan 2, 2021 at 2:13 AM Biju Das <biju.das.jz@...renesas.com> wrote:
>
>
>
> > -----Original Message-----
> > From: Adam Ford <aford173@...il.com>
> > Sent: 01 January 2021 21:34
> > To: Biju Das <biju.das.jz@...renesas.com>
> > Cc: linux-renesas-soc@...r.kernel.org; aford@...conembedded.com; Krzysztof
> > Kozlowski <krzk@...nel.org>; Rob Herring <robh+dt@...nel.org>; Geert
> > Uytterhoeven <geert+renesas@...der.be>; Magnus Damm
> > <magnus.damm@...il.com>; Sergei Shtylyov <sergei.shtylyov@...il.com>;
> > linux-kernel@...r.kernel.org; devicetree@...r.kernel.org
> > Subject: Re: [PATCH 1/2] dt-bindings: memory: Renesas RPC-IF: Add support
> > for RZ/G2 Series
> >
> > On Fri, Jan 1, 2021 at 12:58 PM Biju Das <biju.das.jz@...renesas.com>
> > wrote:
> > >
> > > Hi Adam,
> > >
> > > Thanks for the patch.
> > >
> > > > -----Original Message-----
> > > > From: Adam Ford <aford173@...il.com>
> > > > Sent: 01 January 2021 11:39
> > > > To: linux-renesas-soc@...r.kernel.org
> > > > Cc: aford@...conembedded.com; Adam Ford <aford173@...il.com>;
> > > > Krzysztof Kozlowski <krzk@...nel.org>; Rob Herring
> > > > <robh+dt@...nel.org>; Geert Uytterhoeven <geert+renesas@...der.be>;
> > > > Magnus Damm <magnus.damm@...il.com>; Sergei Shtylyov
> > > > <sergei.shtylyov@...il.com>; linux-kernel@...r.kernel.org;
> > > > devicetree@...r.kernel.org
> > > > Subject: [PATCH 1/2] dt-bindings: memory: Renesas RPC-IF: Add
> > > > support for
> > > > RZ/G2 Series
> > > >
> > > > The RZ/G2 Series has the RPC-IF interface.
> > > > Update bindings to support: r8a774a1, r8a774b1, r8a774c0, and
> > > > r8a774e1
> > > >
> > > > Signed-off-by: Adam Ford <aford173@...il.com>
> > > > ---
> > > >  .../bindings/memory-controllers/renesas,rpc-if.yaml           | 4
> > ++++
> > > >  1 file changed, 4 insertions(+)
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/memory-
> > > > controllers/renesas,rpc-if.yaml
> > > > b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-i
> > > > f.yaml index 6d6ba608fd22..050c66af8c2c 100644
> > > > ---
> > > > a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-
> > > > if.yaml
> > > > +++ b/Documentation/devicetree/bindings/memory-controllers/renesas,r
> > > > +++ pc-
> > > > if.yaml
> > > > @@ -26,6 +26,10 @@ properties:
> > > >    compatible:
> > > >      items:
> > > >        - enum:
> > > > +          - renesas,r8a774a1-rpc-if       # RZ/G2M
> > > > +          - renesas,r8a774b1-rpc-if       # RZ/G2N
> > > > +          - renesas,r8a774c0-rpc-if       # RZ/G2E
> > > > +          - renesas,r8a774e1-rpc-if       # RZ/G2H
> > > >            - renesas,r8a77970-rpc-if       # R-Car V3M
> > > >            - renesas,r8a77980-rpc-if       # R-Car V3H
> > > >            - renesas,r8a77995-rpc-if       # R-Car D3
> > >
> > > May be we need to update the below description as well to cover RZ/G2
> > device??
> > >
> > > - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 device
> >
> > How do you want it to read?
>
> Since it is generic compatible string for both R-Car gen3 and RZ/G2 device, I would update the description as
>
> - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 or RZ/G2 device
>
> Also may be we need to update the description of config RENESAS_RPCIF in drivers/memory/Kconfig to taken care of RZ/G2 devices in a separate patch.
>

Thanks for the suggestion.  I'll work on V2 where I update the
descriptions for both.

adam

> Cheers,
> Biju