netdev - RE: [PATCH] dt-bindings: can: rcar

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Message-ID: <TY1PR01MB177055864EEAD487C2917860C0360@TY1PR01MB1770.jpnprd01.prod.outlook.com>
Date:   Fri, 24 Aug 2018 08:31:42 +0000
From:   Fabrizio Castro <fabrizio.castro@...renesas.com>
To:     Simon Horman <horms@...ge.net.au>,
        Chris Paterson <Chris.Paterson2@...esas.com>
CC:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Biju Das <biju.das@...renesas.com>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] dt-bindings: can: rcar_can: Add r8a774a1 support

Hello Simon,

Thank you for the feedback!

> >
> > In theory CAN could be broken if renesas,can-clock-select is set to 0x1
> > (clkp2) in the DT, as this value will be written to the CAN Clock Select
> > Register. However if the documentation is followed there will be no
> > problems.
> >
> > We should probably update the driver to fix this though, which will be a
> > change specific to all RZ/G2 devices, so perhaps we should also be adding
> > a "renesas,rzg-gen2-can" family compatible string as well? (to driver and
> > documentation)
>
> Yes, I think that sounds reasonable.
>
> But in that case we should pre-emptively not use renesas,rcar-gen3-can for
> RZ/G2.

What do you think about the following:
https://patchwork.kernel.org/patch/10573795/
https://patchwork.kernel.org/patch/10573791/
https://patchwork.kernel.org/patch/10573805/

Thanks,
Fab




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