Re: [PATCH v3 2/8] riscv: dts: microchip: move sysctrlr out of soc bus

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Am Sonntag, 1. Mai 2022, 21:25:53 CEST schrieb Conor Dooley:
> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> 
> The MPFS system controller has no registers of its own, so move it out
> of the soc node to avoid dtbs_check warnings:
> arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dtb: soc: syscontroller: {'compatible': ['microchip,mpfs-sys-controller'], 'mboxes': [[15, 0]], 'status': ['okay']} should not be valid under {'type': 'object'}
> 
> Reported-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
> Suggested-by: Rob Herring <robh@xxxxxxxxxx>
> Fixes: 528a5b1f2556 ("riscv: dts: microchip: add new peripherals to icicle kit device tree")
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

What function does the "soc-bus" have at all?
I.e. mailbox@37020000 also looks like a peripheral
of the chip but is outside it.

And I remember getting the suggestion to not use soc-"busses"
over in arm-land years ago [0].

[0] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3030d30d9c99c057b5ddfa289cffa637a2775f5

> ---
>  arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> index 746c4d4e7686..bf21a2edd180 100644
> --- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> @@ -146,6 +146,11 @@ refclk: mssrefclk {
>  		#clock-cells = <0>;
>  	};
>  
> +	syscontroller: syscontroller {
> +		compatible = "microchip,mpfs-sys-controller";
> +		mboxes = <&mbox 0>;
> +	};
> +
>  	soc {
>  		#address-cells = <2>;
>  		#size-cells = <2>;
> @@ -446,10 +451,5 @@ mbox: mailbox@37020000 {
>  			#mbox-cells = <1>;
>  			status = "disabled";
>  		};
> -
> -		syscontroller: syscontroller {
> -			compatible = "microchip,mpfs-sys-controller";
> -			mboxes = <&mbox 0>;
> -		};
>  	};
>  };
> 







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