Re: [PATCH 1/2] arm64: dts: socionext: uniphier-ld20: Add default PCI interrup controller address cells

[Kunihiko Hayashi <hayashi.kunihiko@socionext.com>]

Hi Krzysztof,

On 2025/08/22 22:33, Krzysztof Kozlowski wrote:
> Add missing address-cells 0 to the PCI interrupt node to silence W=1
> warning:
> 
>    uniphier-ld20.dtsi:941.4-944.29: Warning (interrupt_map):
> /soc@0/pcie@66000000:interrupt-map:
>      Missing property '#address-cells' in node
> /soc@0/pcie@66000000/legacy-interrupt-controller, using 0 as fallback
> 
> Value '0' is correct because:
> 1. GIC interrupt controller does not have children,
> 2. interrupt-map property (in PCI node) consists of five components and
>     the fourth component "parent unit address", which size is defined by
>     '#address-cells' of the node pointed to by the interrupt-parent
>     component, is not used (=0)

I understand that "parent unit address" is omitted, and according to
the devicetree specification, "#address-cells" define the the size of
the address. However, GIC doesn't specify the address, so this line
is needed to indicate it.

For both patches,
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

There is no tree to manage the SoC-specified commits, so please apply
this series into the DT tree.

Thank you,

---
Best Regards
Kunihiko Hayashi