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Message-ID: <TY1PR01MB1770D9C711DECB0A87AEBC34C0360@TY1PR01MB1770.jpnprd01.prod.outlook.com>
Date:   Fri, 24 Aug 2018 09:22:01 +0000
From:   Fabrizio Castro <fabrizio.castro@...renesas.com>
To:     Simon Horman <horms@...ge.net.au>
CC:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.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>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>
Subject: RE: [PATCH 2/3][can-next] can: rcar_can: Add RZ/G2 support

Hello Simon,

Thank you for your feedback!

> Subject: Re: [PATCH 2/3][can-next] can: rcar_can: Add RZ/G2 support
>
> On Thu, Aug 23, 2018 at 02:07:32PM +0100, Fabrizio Castro wrote:
> > RZ/G2 devices don't have clkp2, therefore this commit adds a
> > generic compatible string for them to allow for proper checking
> > during probe.
> >
> > Signed-off-by: Fabrizio Castro <fabrizio.castro@...renesas.com>
> > Signed-off-by: Chris Paterson <Chris.Paterson2@...esas.com>
>
>
> Are we sure these clocks are for all RZ/G2 SoCs?

Section 52.1.1 of the HW manual and Figure 52.1 state this.

Thanks,
Fab

>
> If so
>
>
> Reviewed-by: Simon Horman <horms+renesas@...ge.net.au>
>
>
> > ---
> >
> > This patch applies on linux-can-next-for-4.19-20180727
> >
> >  drivers/net/can/rcar/rcar_can.c | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
> > index fbd9284..397208e 100644
> > --- a/drivers/net/can/rcar/rcar_can.c
> > +++ b/drivers/net/can/rcar/rcar_can.c
> > @@ -27,6 +27,7 @@
> >
> >  #define RCAR_SUPPORTED_CLOCKS(BIT(CLKR_CLKP1) | BIT(CLKR_CLKP2) | \
> >   BIT(CLKR_CLKEXT))
> > +#define RZG2_SUPPORTED_CLOCKS(BIT(CLKR_CLKP1) | BIT(CLKR_CLKEXT))
> >
> >  /* Mailbox configuration:
> >   * mailbox 60 - 63 - Rx FIFO mailboxes
> > @@ -933,6 +934,10 @@ static const struct of_device_id rcar_can_of_table[] __maybe_unused = {
> >  .compatible = "renesas,rcar-gen3-can",
> >  .data = (void *)RCAR_SUPPORTED_CLOCKS,
> >  },
> > +{
> > +.compatible = "renesas,rzg-gen2-can",
> > +.data = (void *)RZG2_SUPPORTED_CLOCKS,
> > +},
> >  { }
> >  };
> >  MODULE_DEVICE_TABLE(of, rcar_can_of_table);
> > --
> > 2.7.4
> >



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