netdev - Re: [PATCH v2 1/5] dt-bindings: net: can: renesas,rcar-canfd: Document RZ/G2L SoC

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Date:   Tue, 20 Jul 2021 15:37:20 +0100
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Rob Herring <robh+dt@...nel.org>,
        Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-can@...r.kernel.org, netdev <netdev@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [PATCH v2 1/5] dt-bindings: net: can: renesas,rcar-canfd:
 Document RZ/G2L SoC

Hi Geert,

Thank you for the review.

On Tue, Jul 20, 2021 at 11:21 AM Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Mon, Jul 19, 2021 at 4:39 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> > Add CANFD binding documentation for Renesas RZ/G2L SoC.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
>
> Thanks for your patch!
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> Just some bikeshedding on the exact naming below ;-)
>
> > --- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
> > +++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
> > @@ -91,6 +92,59 @@ required:
> >    - channel0
> >    - channel1
> >
> > +if:
> > +  properties:
> > +    compatible:
> > +      contains:
> > +        enum:
> > +          - renesas,rzg2l-canfd
> > +then:
> > +  properties:
> > +    interrupts:
> > +      items:
> > +        - description: CAN global error interrupt
> > +        - description: CAN receive FIFO interrupt
> > +        - description: CAN0 error interrupt
> > +        - description: CAN0 transmit interrupt
> > +        - description: CAN0 transmit/receive FIFO receive completion interrupt
> > +        - description: CAN1 error interrupt
> > +        - description: CAN1 transmit interrupt
> > +        - description: CAN1 transmit/receive FIFO receive completion interrupt
> > +
> > +    interrupt-names:
> > +      items:
> > +        - const: g_error
> > +        - const: g_rx_fifo
> > +        - const: can0_error
>
> s/error/err/?
>
> > +        - const: can0_tx
> > +        - const: can0_tx_rx_fifo_receive_completion
> > +        - const: can1_error
> > +        - const: can1_tx
> > +        - const: can1_tx_rx_fifo_receive_completion
>
> s/receive/rx/?
>
> Some are also a bit long to type.
> Perhaps use naming closer to the User's Manual?
>
> INTRCANGERR => g_err
> INTRCANGRECC => g_recc
> INTRCAN0ERR => ch0_err
> INTRCAN0REC => ch0_rec
> INTRCAN0TRX => ch0_trx
> INTRCAN1ERR => ch1_err
> INTRCAN1REC => ch1_rec
> INTRCAN1TRX => ch1_trx
>
> These do not have "_int" suffixes...
>
Agreed thanks for the input.

> > +
> > +    resets:
> > +      items:
> > +        - description: CANFD_RSTP_N
> > +        - description: CANFD_RSTC_N
> > +
> > +  required:
> > +    - interrupt-names
> > +else:
> > +  properties:
> > +    interrupts:
> > +      items:
> > +        - description: Channel interrupt
> > +        - description: Global interrupt
> > +
> > +    interrupt-names:
> > +      items:
> > +        - const: ch_int
> > +        - const: g_int
>
> ... and these do have "_int" suffixes.
>
indeed

Cheers,
Prabhakar
> > +
> > +    resets:
> > +      items:
> > +        - description: CANFD reset
> > +
> >  unevaluatedProperties: false
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds