[PATCH v3 2/4] dt-bindings: interrupt-controller: sifive,plic: add legacy riscv compatible

[Rob Herring]

On Wed, Aug 17, 2022 at 09:12:11PM +0100, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley at microchip.com>
> 
> While "real" hardware might not use the compatible string "riscv,plic0"
> it is present in the driver & QEMU uses it for automatically generated
> virt machine dtbs. To avoid dt-validate problems with QEMU produced
> dtbs, such as the following, add it to the binding.
> 
> riscv-virt.dtb: plic at c000000: compatible: 'oneOf' conditional failed, one must be fixed:
>         'sifive,plic-1.0.0' is not one of ['sifive,fu540-c000-plic', 'starfive,jh7100-plic', 'canaan,k210-plic']
>         'sifive,plic-1.0.0' is not one of ['allwinner,sun20i-d1-plic']
>         'sifive,plic-1.0.0' was expected
>         'thead,c900-plic' was expected
> riscv-virt.dtb: plic at c000000: '#address-cells' is a required property
> 
> Reported-by: Rob Herring <robh at kernel.org>
> Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
> Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
> ---
>  .../bindings/interrupt-controller/sifive,plic-1.0.0.yaml     | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Rob Herring <robh at kernel.org>