Re: [PATCH] arm64: dts: renesas: r8a779{7|8}0: add TPU support

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On Wed, Sep 19, 2018 at 11:21:49PM +0300, Sergei Shtylyov wrote:
> On 09/19/2018 11:02 PM, Sergei Shtylyov wrote:
> 
> > Describe TPU in the R8A779{7|8}0 device trees.
> > 
> > Based on the original (and large) patches by Vladimir Barinov.
> > 
> > Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
> > 
> > ---
> > This patch is against the 'renesas-devel-20180919-v4.19-rc4' branch of
> > Simon Horman's 'renesas.git' repo.
> > 
> >  arch/arm64/boot/dts/renesas/r8a77970.dtsi |    8 ++++++++
> >  arch/arm64/boot/dts/renesas/r8a77980.dtsi |    9 +++++++++
> >  2 files changed, 17 insertions(+)
> > 
> > Index: renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > ===================================================================
> > --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > +++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > @@ -614,6 +614,14 @@
> >  			status = "disabled";
> >  		};
> >  
> > +		tpu: pwm@e6e80000 {
> > +			compatible = "renesas,tpu-r8a77970", "renesas,tpu";
> 
>   Oops, forgot to document the SoC specific binding...

I'm still not seeing the binding in my inbox.
Could you post it or point me to a link to it?

> 
> > +			reg = <0 0xe6e80000 0 0x100>;

This register range seems a little small.
>From my reading of the documentation 0x148 would be a more obvious choice.
Is the driver only accessing registers in in the 0x100 range for some
reason?

> > +			clocks = <&cpg CPG_MOD 304>;
> > +			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> > +			#pwm-cells = <4>;
> > +			status = "disabled";
> > +		};
> >  
> >  		vin0: video@e6ef0000 {
> >  			compatible = "renesas,vin-r8a77970";
> > Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
> > ===================================================================
> > --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
> > +++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
> > @@ -666,6 +666,15 @@
> >  			status = "disabled";
> >  		};
> >  
> > +		tpu: pwm@e6e80000 {
> > +			compatible = "renesas,tpu-r8a7798", "renesas,tpu";
> 
>    Same here. Plus forgot a zero at the end. :-/
> 
> > +			reg = <0 0xe6e80000 0 0x100>;
> > +			clocks = <&cpg CPG_MOD 304>;
> > +			power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> > +			#pwm-cells = <4>;
> > +			status = "disabled";
> > +		};
> > +
> >  		vin0: video@e6ef0000 {
> >  			compatible = "renesas,vin-r8a77980";
> >  			reg = <0 0xe6ef0000 0 0x1000>;
> > 
> 
> MBR, Sergei
> 



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