linux-kernel - Re: [PATCH v2 2/2] ARM: dts: r8a7740: Add CEU0

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Message-ID: <20180516085409.5u4hnes2dsfwwf5u@verge.net.au>
Date:   Wed, 16 May 2018 10:54:14 +0200
From:   Simon Horman <horms@...ge.net.au>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] ARM: dts: r8a7740: Add CEU0

On Wed, May 16, 2018 at 09:40:09AM +0200, Geert Uytterhoeven wrote:
> Hi Jacopo,
> 
> On Thu, Apr 26, 2018 at 8:24 PM, Jacopo Mondi <jacopo+renesas@...ndi.org> wrote:
> > Describe CEU0 peripheral for Renesas R-Mobile A1 R8A7740 Soc.
> >
> > Reported-by: Geert Uytterhoeven <geert@...der.be>
> > Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.org>
> 
> Thanks for your patch!
> 
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> 
> Minor question below.
> 
> > --- a/arch/arm/boot/dts/r8a7740.dtsi
> > +++ b/arch/arm/boot/dts/r8a7740.dtsi
> > @@ -67,6 +67,16 @@
> >                 power-domains = <&pd_d4>;
> >         };
> >
> > +       ceu0: ceu@...10000 {
> > +               reg = <0xfe910000 0x3000>;
> > +               compatible = "renesas,r8a7740-ceu";
> > +               interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>;
> > +               clocks = <&mstp1_clks R8A7740_CLK_CEU20>;
> > +               clock-names = "ceu20";
> 
> Why the "clock-names" property? It's not mentioned in the DT bindings, and
> may cause issues if the bindings are ever amended.

I have dropped that property for now.

> 
> > +               power-domains = <&pd_a4r>;
> > +               status = "disabled";
> > +       };
> > +
> 
> 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
>