Re: [PATCH v1] riscv: dts: renesas: clean up dtbs_check W=1 warning due to empty phy node

[Sergei Shtylyov]

Hello!

On 7/12/23 11:14 AM, Conor Dooley wrote:

> dtbs_check w/ W=1 complains:
> Warning (unit_address_vs_reg): /soc/ethernet@11c20000/ethernet-phy@7: node has a unit name, but no reg or ranges property
> Warning (avoid_unnecessary_addr_size): /soc/ethernet@11c20000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
> 
> The ethernet@11c20000 node is guarded by an `#if (!SW_ET0_EN_N)` in
> rzg2ul-smarc-som.dtsi, where the phy child node is added. In
> rzfive-smarc-som.dtsi, the ethernet node is marked disabled & the
> interrupt properties are deleted from the phy child node. As a result,
> the produced dts looks like:
> 	ethernet@11c20000 {
> 		compatible = "renesas,r9a07g043-gbeth\0renesas,rzg2l-gbeth";
> 		/* snip */
> 		#address-cells = <0x01>;
> 		#size-cells = <0x00>;
> 		status = "disabled";
> 
> 		ethernet-phy@7 {
> 		};
> 	};
> 
> Adding a corresponding `#if (!SW_ET0_EN_N)` around the node in
> rzfive-smarc-som.dtsi avoids the complaint, as the empty child node is
> not added:
> 	ethernet@11c20000 {
> 		compatible = "renesas,r9a07g043-gbeth\0renesas,rzg2l-gbeth";
> 		/* snip */
> 		#address-cells = <0x01>;
> 		#size-cells = <0x00>;
> 		status = "disabled";
> 	};
> 
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
[...]

> diff --git a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
> index d6f18754eb5d..c62debc7ca7e 100644
> --- a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
> +++ b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
> @@ -22,6 +22,7 @@ &dmac {
>  	status = "disabled";
>  };
>  
> +#if (!SW_ET0_EN_N)

   Are the parens really needed here?

>  &eth0 {
>  	status = "disabled";
>  
[...]

MBR, Sergey