linux-kernel - Re: [PATCH v6 1/1] dt-bindings: interrupt-controller: aspeed,ast2700: correct #interrupt-cells and interrupts count

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Message-ID: <20251103-economic-lime-chupacabra-d7adec@kuoka>
Date: Mon, 3 Nov 2025 09:17:52 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ryan Chen <ryan_chen@...eedtech.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Joel Stanley <joel@....id.au>, Andrew Jeffery <andrew@...econstruct.com.au>, 
	jk@...econstruct.com.au, Kevin Chen <kevin_chen@...eedtech.com>, 
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-aspeed@...ts.ozlabs.org
Subject: Re: [PATCH v6 1/1] dt-bindings: interrupt-controller:
 aspeed,ast2700: correct #interrupt-cells and interrupts count

On Thu, Oct 30, 2025 at 02:01:55PM +0800, Ryan Chen wrote:
> Update the AST2700 interrupt controller binding to match the actual
> hardware and the irq-aspeed-intc driver behavior.
> 
> - Interrupts:
>   First-level INTC banks request multiple interrupt lines to the root
>   GIC, with a maximum of 10 per bank. Second-level INTC banks request
>   only one interrupt line to their parent INTC-IC. Therefore, set the
>   interrupts property to allow a minimum of 1 and a maximum of 10
>   entries.
> 
> - #interrupt-cells:
>   Set '#interrupt-cells' to <1> since the irq-aspeed-intc.c driver does
>   not support specifying a trigger type; only the interrupt index is used.
> 
> Signed-off-by: Ryan Chen <ryan_chen@...eedtech.com>
> ---
>  .../interrupt-controller/aspeed,ast2700-intc.yaml   | 13 +++++++++----
>  1 file changed, 9 insertions(+), 4 deletions(-)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof