Re: [PATCH v3 2/3] ARM: dts: aspeed-g6: Add nodes for i3c controllers

[Krzysztof Kozlowski <krzk@kernel.org>]

On Wed, Apr 08, 2026 at 10:34:34PM +0200, Dawid Glazik wrote:
> Add the i3c controller devices to the ast2600 g6 common dts. We add all
> 6 busses to the common g6 definition, but leave disabled through the
> status property, to be enabled per-platform.
> 
> Originally-by: Jeremy Kerr <jk@codeconstruct.com.au>

Don't invent tags. This is not used outside of TIP.

> Signed-off-by: Dawid Glazik <dawid.glazik@linux.intel.com>
> ---
> v3:
>  - add i3c aliases
>  - rebase on top of latest tree and solve conflicts
>  - as agreed with Jeremy off-list, he said I can take authorship of this going forward
> v2:
>  - use inline bus representation, without the i3c: label
> ---
>  arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 97 +++++++++++++++++++++++++
>  1 file changed, 97 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> index f5641128614f..f986fcbed604 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> +++ b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> @@ -29,6 +29,12 @@ aliases {
>  		i2c13 = &i2c13;
>  		i2c14 = &i2c14;
>  		i2c15 = &i2c15;
> +		i3c0 = &i3c0;
> +		i3c1 = &i3c1;
> +		i3c2 = &i3c2;
> +		i3c3 = &i3c3;
> +		i3c4 = &i3c4;
> +		i3c5 = &i3c5;

Bus aliases are not properties of SoC DTSI.

>  		serial0 = &uart1;
>  		serial1 = &uart2;
>  		serial2 = &uart3;
> @@ -1066,6 +1072,97 @@ i2c15: i2c@800 {
>  				};
>  			};
>  
> +			bus@1e7a0000 {
> +				compatible = "simple-bus";
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				ranges = <0 0x1e7a0000 0x8000>;
> +
> +				i3c_global: i3c-global@0 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
If you cannot find a name matching your device, please check in kernel
sources for similar cases or you can grow the spec (via pull request to
DT spec repo).

Best regards,
Krzysztof