linux-kernel - Re: [PATCH 2/7] arm64: dts: renesas: r8a77970: add VSPD support

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Date:   Mon, 9 Apr 2018 14:21:25 +0200
From:   Simon Horman <horms@...ge.net.au>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>, magnus.damm@...il.com,
        geert@...ux-m68k.org, niklas.soderlund@...natech.se,
        sergei.shtylyov@...entembedded.com,
        dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Vladimir Barinov <vladimir.barinov@...entembedded.com>,
        Niklas Söderlund 
        <niklas.soderlund+renesas@...natech.se>
Subject: Re: [PATCH 2/7] arm64: dts: renesas: r8a77970: add VSPD support

On Fri, Apr 06, 2018 at 04:33:21PM +0300, Laurent Pinchart wrote:
> On Friday, 6 April 2018 16:08:07 EEST Jacopo Mondi wrote:
> > From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
> > 
> > Describe VSPD0 in the R8A77970 device tree; it will be used by DU in
> > the next patch...
> > 
> > Based on the original (and large) patch by Daisuke Matsushita
> > <daisuke.matsushita.ns@...achi.com>.
> > 
> > Signed-off-by: Vladimir Barinov <vladimir.barinov@...entembedded.com>
> > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
> > ---
> >  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index 71f466d..db06c94 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > @@ -625,6 +625,16 @@
> >  			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> >  			resets = <&cpg 603>;
> >  		};
> > +
> > +		vspd0: vsp@...20000 {
> > +			compatible = "renesas,vsp2";
> > +			reg = <0 0xfea20000 0 0x4000>;
> 
> You need to extend the memory region to include the V6_CLUTn_TBL* registers. I 
> would recommend simply extending it to 0x8000 as all other VSP instances, even 
> if the registers at 0x7000-0x7fff are not implemented.
> 
> Apart from that,
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

I applied the first patch of this series. Please update this,
and any subsequent patches as appropriate and then repost the series
without the first patch.

Thanks