Re: [PATCH v4 1/3] dt-bindings: interrupt-controller: realtek,rtl-intc: require parents

[Rob Herring <robh@kernel.org>]

On Sun, 06 Feb 2022 17:41:51 +0100, Sander Vanheule wrote:
> The interrupt router has 32 inputs, and up to 15 outputs connected to
> the MIPS CPU's interrupts. The way these are mapped to each other is
> runtime configurable. This controller can also mask individual interrupt
> sources, and has a status register to indicate pending interrupts. This
> means the controller is not transparent, and the use of "interrupt-map"
> inappropriate. Instead, a list of parent interrupts should be specified.
> 
> Two-part compatibles are introduced to be able to require "interrupts"
> for new devicetrees. The relevant descriptions are extended or added to
> more clearly describe the functionality of this controller. The old
> compatible, with "interrupt-map" and "#address-cells", is deprecated.
> Interrupt specifiers for new compatibles will require two cells, to
> indicate the output selection.
> 
> To prevent spurious changes to the binding when more SoCs are added,
> "allOf" is used with one "if", and the compatible enum only has one
> item.
> 
> The example is updated to provide a correct example for RTL8380 SoCs.
> 
> Signed-off-by: Sander Vanheule <sander@svanheule.net>
> ---
> Changes in v4:
> - Indicate more clearly that the controller is not transparent.
> ---
>  .../realtek,rtl-intc.yaml                     | 82 ++++++++++++++-----
>  1 file changed, 62 insertions(+), 20 deletions(-)
> 

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